]> git.saurik.com Git - apple/system_cmds.git/blobdiff - fs_usage.tproj/fs_usage.c
system_cmds-854.11.2.tar.gz
[apple/system_cmds.git] / fs_usage.tproj / fs_usage.c
index 7ed62cca524c937370e8efedb9161a82b7d29b8f..8612ae1bbec52a1d9382fda4bf9943270d92d5cc 100644 (file)
@@ -1,8 +1,8 @@
 /*
- * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1999-2019 Apple Inc. All rights reserved.
  *
  * @APPLE_LICENSE_HEADER_START@
- * 
+ *
  * "Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
  * Reserved.  This file contains Original Code and/or Modifications of
  * Original Code as defined in and that are subject to the Apple Public
@@ -10,7 +10,7 @@
  * except in compliance with the License.  Please obtain a copy of the
  * License at http://www.apple.com/publicsource and read it before using
  * this file.
- * 
+ *
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  * License for the specific language governing rights and limitations
  * under the License."
- * 
+ *
  * @APPLE_LICENSE_HEADER_END@
  */
 
 /*
-cc -I/System/Library/Frameworks/System.framework/Versions/B/PrivateHeaders -DPRIVATE -D__APPLE_PRIVATE -arch x86_64 -arch i386 -O -o fs_usage fs_usage.c
-*/
+ * SDKROOT=macosx.internal cc -I`xcrun -sdk macosx.internal --show-sdk-path`/System/Library/Frameworks/System.framework/Versions/B/PrivateHeaders -arch x86_64 -Os -lktrace -lutil -o fs_usage fs_usage.c
+ */
 
 #include <stdlib.h>
 #include <stdio.h>
 #include <signal.h>
 #include <strings.h>
-#include <nlist.h>
 #include <fcntl.h>
 #include <aio.h>
 #include <string.h>
@@ -41,323 +40,205 @@ cc -I/System/Library/Frameworks/System.framework/Versions/B/PrivateHeaders -DPRI
 #include <err.h>
 #include <libutil.h>
 
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/time.h>
+#include <ktrace/session.h>
+#include <System/sys/kdebug.h>
+#include <os/assumes.h>
+
+#include <sys/disk.h>
+#include <sys/fcntl.h>
+#include <sys/file.h>
 #include <sys/ioctl.h>
-#include <sys/socket.h>
 #include <sys/mman.h>
-#include <sys/sysctl.h>
-#include <sys/disk.h>
-
-#ifndef KERNEL_PRIVATE
-#define KERNEL_PRIVATE
-#include <sys/kdebug.h>
-#undef KERNEL_PRIVATE
-#else
-#include <sys/kdebug.h>
-#endif /*KERNEL_PRIVATE*/
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <sys/syslimits.h>
+#include <sys/time.h>
+#include <sys/types.h>
 
 #import <mach/clock_types.h>
 #import <mach/mach_time.h>
 
-
-
-#define F_OPENFROM      56              /* SPI: open a file relative to fd (must be a dir) */
-#define F_UNLINKFROM    57              /* SPI: open a file relative to fd (must be a dir) */
-#define F_CHECK_OPENEVT 58              /* SPI: if a process is marked OPENEVT, or in O_EVTONLY on opens of this vnode */
-
-
-#ifndef        RAW_VERSION1
-typedef struct {
-        int             version_no;
-        int             thread_count;
-        uint64_t        TOD_secs;
-       uint32_t        TOD_usecs;
-} RAW_header;
-
-#define RAW_VERSION0    0x55aa0000
-#define RAW_VERSION1    0x55aa0101
-#endif
-
-
-#define MAXINDEX 2048
-
-typedef struct LibraryRange {
-       uint64_t b_address;
-       uint64_t e_address;
-} LibraryRange;
-
-LibraryRange framework32;
-LibraryRange framework64;
-
-
-#define        TEXT_R          0
-#define DATA_R         1
-#define OBJC_R         2
-#define IMPORT_R       3
-#define UNICODE_R      4
-#define IMAGE_R                5
-#define LINKEDIT_R     6
-
-
-char *frameworkType[] = {
-       "<TEXT>    ",
-       "<DATA>    ",
-       "<OBJC>    ",
-       "<IMPORT>  ",
-       "<UNICODE> ",
-       "<IMAGE>   ",
-       "<LINKEDIT>",
-};
-
-
-typedef struct LibraryInfo {
-       uint64_t b_address;
-       uint64_t e_address;
-       int      r_type;
-       char     *name;
-} LibraryInfo;
-
-LibraryInfo frameworkInfo[MAXINDEX];
-int numFrameworks = 0;
-
-
-/* 
+/*
  * MAXCOLS controls when extra data kicks in.
  * MAX_WIDE_MODE_COLS controls -w mode to get even wider data in path.
- * If NUMPARMS changes to match the kernel, it will automatically
- * get reflected in the -w mode output.
  */
-#define NUMPARMS 23
-#define PATHLENGTH (NUMPARMS*sizeof(uintptr_t))
-
 #define MAXCOLS 132
-#define MAX_WIDE_MODE_COLS (PATHLENGTH + 80)
+#define MAX_WIDE_MODE_COLS 264
 #define MAXWIDTH MAX_WIDE_MODE_COLS + 64
 
+typedef struct th_info {
+       struct th_info *next;
+       uint64_t thread;
 
-typedef struct th_info *th_info_t;
-
-struct th_info {
-       th_info_t  next;
-        uintptr_t  thread;
-        uintptr_t  child_thread;
-
-        int  in_filemgr;
-        int  pid;
-        int  type;
-        int  arg1;
-        int  arg2;
-        int  arg3;
-        int  arg4;
-        int  arg5;
-        int  arg6;
-        int  arg7;
-        int  arg8;
-        int  waited;
-        double stime;
-        uintptr_t *pathptr;
-        uintptr_t pathname[NUMPARMS + 1];      /* add room for null terminator */
-        uintptr_t pathname2[NUMPARMS + 1];     /* add room for null terminator */
-};
-
-
-typedef struct threadmap * threadmap_t;
+       /* this is needed for execve()/posix_spawn(), because the command name at the end probe is the new name, which we don't want */
+       char command[MAXCOMLEN + 1];
 
-struct threadmap {
-       threadmap_t     tm_next;
+       /*
+        * sometimes a syscall can cause multiple VFS_LOOKUPs of the same vnode with multiple paths
+        * (e.g., one absolute, one relative).  traditional fs_usage behavior was to display the
+        * *first* lookup, so we need to save it off once we see it.
+        */
+       uint64_t vnodeid; /* the vp of the VFS_LOOKUP we're currently in, 0 if we are not in one */
+       char pathname[MAXPATHLEN];
+       char pathname2[MAXPATHLEN];
+       char *newest_pathname; /* points to pathname2 if it's filled, otherwise pathname if it's filled, otherwise NULL */
+
+       int pid;
+       int type;
+       uint64_t arg1;
+       uint64_t arg2;
+       uint64_t arg3;
+       uint64_t arg4;
+       uint64_t arg5;
+       uint64_t arg6;
+       uint64_t arg7;
+       uint64_t arg8;
+       int waited;
+       uint64_t stime;
+} *th_info_t;
 
-       uintptr_t       tm_thread;
-       unsigned int    tm_setsize;     /* this is a bit count */
-       unsigned long  *tm_setptr;      /* file descripter bitmap */
-       char            tm_command[MAXCOMLEN + 1];
+struct diskio {
+       struct diskio *next;
+       struct diskio *prev;
+       uint64_t  type;
+       uint64_t  bp;
+       uint64_t  dev;
+       uint64_t  blkno;
+       uint64_t  iosize;
+       uint64_t  io_errno;
+       uint64_t  is_meta;
+       uint64_t   vnodeid;
+       uint64_t  issuing_thread;
+       pid_t      issuing_pid;
+       uint64_t  completion_thread;
+       char issuing_command[MAXCOMLEN + 1];
+       uint64_t issued_time;
+       uint64_t completed_time;
+       struct timeval completed_walltime;
+       uint32_t bc_info;
 };
 
-
 #define HASH_SIZE       1024
-#define HASH_MASK       1023
-
-th_info_t      th_info_hash[HASH_SIZE];
-th_info_t      th_info_freelist;
-
-threadmap_t    threadmap_hash[HASH_SIZE];
-threadmap_t    threadmap_freelist;
-
-
-int  filemgr_in_progress = 0;
-int  need_new_map = 1;
-int  bias_secs = 0;
-long last_time;
-int  wideflag = 0;
-int  columns = 0;
-
-int  one_good_pid = 0;    /* Used to fail gracefully when bad pids given */
-int  select_pid_mode = 0;  /* Flag set indicates that output is restricted
-                             to selected pids or commands */
-
-char   *arguments = 0;
-int     argmax = 0;
-
-
-#define        USLEEP_MIN      1
-#define USLEEP_BEHIND  2
-#define        USLEEP_MAX      32
-int    usleep_ms = USLEEP_MIN;
-
-/*
- * Network only or filesystem only output filter
- * Default of zero means report all activity - no filtering
- */
-#define FILESYS_FILTER    0x01
-#define NETWORK_FILTER    0x02
-#define CACHEHIT_FILTER   0x04
-#define EXEC_FILTER      0x08
-#define PATHNAME_FILTER          0x10
-#define DEFAULT_DO_NOT_FILTER  0x00
-
-int filter_mode = CACHEHIT_FILTER;
-
+#define HASH_MASK       (HASH_SIZE - 1)
+
+void setup_ktrace_callbacks(void);
+void extend_syscall(uint64_t thread, int type, ktrace_event_t event);
+
+/* printing routines */
+bool check_filter_mode(pid_t pid, th_info_t ti, uint64_t type, int error, int retval, char *sc_name);
+void format_print(th_info_t ti, char *sc_name, ktrace_event_t event, uint64_t type, int format, uint64_t now, uint64_t stime, int waited, const char *pathname, struct diskio *dio);
+int print_open(ktrace_event_t event, uint64_t flags);
+
+/* metadata info hash routines */
+void meta_add_name(uint64_t blockno, const char *pathname);
+const char *meta_find_name(uint64_t blockno);
+void meta_delete_all(void);
+
+/* event ("thread info") routines */
+void event_enter(int type, ktrace_event_t event);
+void event_exit(char *sc_name, int type, ktrace_event_t event, int format);
+th_info_t event_find(uint64_t thread, int type);
+void event_delete(th_info_t ti_to_delete);
+void event_delete_all(void);
+void event_mark_thread_waited(uint64_t);
+
+/* network fd set routines */
+void fd_set_is_network(pid_t pid, uint64_t fd, bool set);
+bool fd_is_network(pid_t pid, uint64_t fd);
+void fd_clear_pid(pid_t pid);
+void fd_clear_all(void);
+
+/* shared region address lookup routines */
+void init_shared_cache_mapping(void);
+void lookup_name(uint64_t user_addr, char **type, char **name);
+
+/* disk I/O tracking routines */
+struct diskio *diskio_start(uint64_t type, uint64_t bp, uint64_t dev, uint64_t blkno, uint64_t iosize, ktrace_event_t event);
+struct diskio *diskio_find(uint64_t bp);
+struct diskio *diskio_complete(uint64_t bp, uint64_t io_errno, uint64_t resid, uint64_t thread, uint64_t curtime, struct timeval curtime_wall);
+void diskio_print(struct diskio *dio);
+void diskio_free(struct diskio *dio);
+
+/* disk name routines */
 #define NFS_DEV -1
 #define CS_DEV -2
-
-struct diskrec {
-        struct diskrec *next;
-        char *diskname;
-        int   dev;
-};
-
-struct diskio {
-        struct diskio *next;
-        struct diskio *prev;
-        int  type;
-        int  bp;
-        int  dev;
-        int  blkno;
-        int  iosize;
-        int  io_errno;
-        uintptr_t  issuing_thread;
-        uintptr_t  completion_thread;
-        char issuing_command[MAXCOMLEN];
-        double issued_time;
-        double completed_time;
-};
-
-struct diskrec *disk_list = NULL;
-struct diskio *free_diskios = NULL;
-struct diskio *busy_diskios = NULL;
-
-
-struct diskio *insert_diskio();
-struct diskio *complete_diskio();
-void           free_diskio();
-void           print_diskio();
-
-int            check_filter_mode(struct th_info *, int, int, int, char *);
-void            format_print(struct th_info *, char *, uintptr_t, int, int, int, int, int, int, double, double, int, char *, struct diskio *);
-void           enter_event_now(uintptr_t, int, kd_buf *, char *, double);
-void           enter_event(uintptr_t, int, kd_buf *, char *, double);
-void            exit_event(char *, uintptr_t, int, int, int, int, int, int, double);
-void           extend_syscall(uintptr_t, int, kd_buf *);
-
-char           *generate_cs_disk_name(int, char *s);
-char           *find_disk_name(int);
-void           cache_disk_names();
-void           recache_disk_names();
-
-void           lookup_name(uint64_t user_addr, char **type, char **name);
-int            ReadSharedCacheMap(const char *, LibraryRange *, char *);
-void           SortFrameworkAddresses();
-
-void           fs_usage_fd_set(uintptr_t, unsigned int);
-int            fs_usage_fd_isset(uintptr_t, unsigned int);
-void           fs_usage_fd_clear(uintptr_t, unsigned int);
-
-void           init_arguments_buffer();
-int            get_real_command_name(int, char *, int);
-
-void           delete_all_events();
-void           delete_event(th_info_t);
-th_info_t      add_event(uintptr_t, int);
-th_info_t      find_event(uintptr_t, int);
-void           mark_thread_waited(uintptr_t);
-
-void           read_command_map();
-void           delete_all_map_entries();
-void            create_map_entry(uintptr_t, int, char *);
-void           delete_map_entry(uintptr_t);
-threadmap_t    find_map_entry(uintptr_t);
-
-void           getdivisor();
-void           argtopid();
-void           set_remove();
-void           set_pidcheck();
-void           set_pidexclude();
-int            quit();
-
+char *generate_cs_disk_name(uint64_t dev, char *s);
+char *find_disk_name(uint64_t dev);
+void cache_disk_names(void);
 
 #define CLASS_MASK     0xff000000
 #define CSC_MASK       0xffff0000
 #define BSC_INDEX(type)        ((type >> 2) & 0x3fff)
 
-
-#define TRACE_DATA_NEWTHREAD   0x07000004
-#define TRACE_DATA_EXEC        0x07000008
-#define TRACE_STRING_NEWTHREAD 0x07010004
-#define TRACE_STRING_EXEC      0x07010008
-
 #define MACH_vmfault    0x01300008
 #define MACH_pageout    0x01300004
 #define MACH_sched      0x01400000
 #define MACH_stkhandoff 0x01400008
 #define MACH_idle      0x01400024
-#define VFS_LOOKUP      0x03010090
 
 #define BSC_thread_terminate    0x040c05a4
 
+#define HFS_update          0x3018000
+#define HFS_modify_block_end 0x3018004
+
 #define Throttled      0x3010184
 #define SPEC_ioctl     0x3060000
+#define SPEC_unmap_info        0x3060004
 #define proc_exit      0x4010004
 
-#define P_DISKIO       0x03020000
-#define P_DISKIO_DONE  0x03020004
-#define P_DISKIO_TYPE  0x03020068
+#define BC_IO_HIT                              0x03070010
+#define BC_IO_HIT_STALLED              0x03070020
+#define BC_IO_MISS                             0x03070040
+#define BC_IO_MISS_CUT_THROUGH 0x03070080
+#define BC_PLAYBACK_IO                 0x03070100
+#define BC_STR(s)      ( \
+       (s == BC_IO_HIT) ? "HIT" : \
+       (s == BC_IO_HIT_STALLED) ? "STALL" : \
+       (s == BC_IO_MISS) ? "MISS" : \
+       (s == BC_IO_MISS_CUT_THROUGH) ? "CUT" : \
+       (s == BC_PLAYBACK_IO) ? "PLBK" : \
+       (s == 0x0) ? "NONE" : "UNKN" )
+
+#define P_DISKIO_READ    (DKIO_READ << 2)
+#define P_DISKIO_ASYNC   (DKIO_ASYNC << 2)
+#define P_DISKIO_META    (DKIO_META << 2)
+#define P_DISKIO_PAGING   (DKIO_PAGING << 2)
+#define P_DISKIO_THROTTLE (DKIO_THROTTLE << 2)
+#define P_DISKIO_PASSIVE  (DKIO_PASSIVE << 2)
+#define P_DISKIO_NOCACHE  (DKIO_NOCACHE << 2)
+#define P_DISKIO_TIER_MASK  (DKIO_TIER_MASK << 2)
+#define P_DISKIO_TIER_SHIFT (DKIO_TIER_SHIFT + 2)
+#define P_DISKIO_TIER_UPGRADE (DKIO_TIER_UPGRADE << 2)
+
+#define P_DISKIO       (FSDBG_CODE(DBG_DKRW, 0))
+#define P_DISKIO_DONE  (P_DISKIO | (DKIO_DONE << 2))
+#define P_DISKIO_TYPE  (P_DISKIO | P_DISKIO_READ | P_DISKIO_META | P_DISKIO_PAGING)
 #define P_DISKIO_MASK  (CSC_MASK | 0x4)
 
-#define P_DISKIO_READ    0x00000008
-#define P_DISKIO_ASYNC   0x00000010
-#define P_DISKIO_META    0x00000020
-#define P_DISKIO_PAGING   0x00000040
-#define P_DISKIO_THROTTLE 0x00000080
-#define P_DISKIO_PASSIVE  0x00000100
-
-#define P_WrData       0x03020000
-#define P_RdData       0x03020008
-#define P_WrMeta       0x03020020
-#define P_RdMeta       0x03020028
-#define P_PgOut                0x03020040
-#define P_PgIn         0x03020048
-
-#define P_CS_ReadChunk         0x0a000200
-#define P_CS_ReadChunkDone     0x0a000280
-#define P_CS_WriteChunk                0x0a000210
-#define P_CS_WriteChunkDone    0x0a000290
+#define P_WrData       (P_DISKIO)
+#define P_RdData       (P_DISKIO | P_DISKIO_READ)
+#define P_WrMeta       (P_DISKIO | P_DISKIO_META)
+#define P_RdMeta       (P_DISKIO | P_DISKIO_META | P_DISKIO_READ)
+#define P_PgOut                (P_DISKIO | P_DISKIO_PAGING)
+#define P_PgIn         (P_DISKIO | P_DISKIO_PAGING | P_DISKIO_READ)
 
-#define P_CS_Originated_Read   0x0a000500
-#define P_CS_Originated_ReadDone   0x0a000580
-#define P_CS_Originated_Write  0x0a000510
-#define P_CS_Originated_WriteDone  0x0a000590
-#define P_CS_MetaRead          0x0a000900
-#define P_CS_MetaReadDone      0x0a000980
-#define P_CS_MetaWrite         0x0a000910
-#define P_CS_MetaWriteDone     0x0a000990
-#define P_CS_SYNC_DISK         0x0a008000
+#define P_CS_Class             0x0a000000      // DBG_CORESTORAGE
+#define P_CS_Type_Mask         0xfffffff0
+#define P_CS_IO_Done           0x00000004
 
+#define P_CS_ReadChunk         0x0a000200      // chopped up request
+#define P_CS_WriteChunk                0x0a000210
+#define P_CS_MetaRead          0x0a000300      // meta data
+#define P_CS_MetaWrite         0x0a000310
+#define P_CS_TransformRead     0x0a000500      // background transform
+#define P_CS_TransformWrite    0x0a000510
+#define P_CS_MigrationRead     0x0a000600      // composite disk block migration
+#define P_CS_MigrationWrite    0x0a000610
+#define P_CS_SYNC_DISK         0x0a010000
 
 #define MSC_map_fd   0x010c00ac
 
 #define BSC_BASE     0x040C0000
-#define MSC_BASE     0x010C0000
 
 // Network related codes
 #define        BSC_recvmsg             0x040C006C
@@ -371,6 +252,12 @@ int                quit();
 #define BSC_listen             0x040C01A8
 #define        BSC_sendto              0x040C0214
 #define BSC_socketpair         0x040C021C
+#define BSC_recvmsg_nocancel   0x040c0644
+#define BSC_sendmsg_nocancel   0x040c0648
+#define BSC_recvfrom_nocancel  0x040c064c
+#define BSC_accept_nocancel    0x040c0650
+#define BSC_connect_nocancel   0x040c0664
+#define BSC_sendto_nocancel    0x040c0674
 
 #define BSC_exit               0x040C0004
 #define BSC_read               0x040C000C
@@ -392,7 +279,7 @@ int         quit();
 #define BSC_dup                        0x040C00A4
 #define BSC_ioctl              0x040C00D8
 #define BSC_revoke             0x040C00E0
-#define BSC_symlink            0x040C00E4      
+#define BSC_symlink            0x040C00E4
 #define BSC_readlink           0x040C00E8
 #define BSC_execve             0x040C00EC
 #define BSC_umask              0x040C00F0
@@ -400,46 +287,47 @@ int               quit();
 #define BSC_msync              0x040C0104
 #define BSC_dup2               0x040C0168
 #define BSC_fcntl              0x040C0170
-#define BSC_fsync              0x040C017C      
-#define BSC_readv              0x040C01E0      
-#define BSC_writev             0x040C01E4      
-#define BSC_fchown             0x040C01EC      
-#define BSC_fchmod             0x040C01F0      
+#define BSC_fsync              0x040C017C
+#define BSC_readv              0x040C01E0
+#define BSC_writev             0x040C01E4
+#define BSC_fchown             0x040C01EC
+#define BSC_fchmod             0x040C01F0
 #define BSC_rename             0x040C0200
-#define BSC_mkfifo             0x040c0210      
-#define BSC_mkdir              0x040C0220      
+#define BSC_flock              0x040C020C
+#define BSC_mkfifo             0x040C0210
+#define BSC_mkdir              0x040C0220
 #define BSC_rmdir              0x040C0224
 #define BSC_utimes             0x040C0228
 #define BSC_futimes            0x040C022C
 #define BSC_pread              0x040C0264
 #define BSC_pwrite             0x040C0268
-#define BSC_statfs             0x040C0274      
+#define BSC_statfs             0x040C0274
 #define BSC_fstatfs            0x040C0278
 #define BSC_unmount            0x040C027C
 #define BSC_mount              0x040C029C
-#define BSC_stat               0x040C02F0      
-#define BSC_fstat              0x040C02F4      
-#define BSC_lstat              0x040C02F8      
-#define BSC_pathconf           0x040C02FC      
+#define BSC_fdatasync          0x040C02EC
+#define BSC_stat               0x040C02F0
+#define BSC_fstat              0x040C02F4
+#define BSC_lstat              0x040C02F8
+#define BSC_pathconf           0x040C02FC
 #define BSC_fpathconf          0x040C0300
 #define BSC_getdirentries      0x040C0310
 #define BSC_mmap               0x040c0314
 #define BSC_lseek              0x040c031c
 #define BSC_truncate           0x040C0320
-#define BSC_ftruncate          0x040C0324
+#define BSC_ftruncate          0x040C0324
 #define BSC_undelete           0x040C0334
-#define BSC_statv              0x040C0364      
-#define BSC_lstatv             0x040C0368      
-#define BSC_fstatv             0x040C036C      
-#define BSC_mkcomplex          0x040C0360      
-#define BSC_getattrlist        0x040C0370      
-#define BSC_setattrlist        0x040C0374      
-#define BSC_getdirentriesattr  0x040C0378      
-#define BSC_exchangedata       0x040C037C      
-#define BSC_checkuseraccess    0x040C0380      
-#define BSC_searchfs           0x040C0384
-#define BSC_delete             0x040C0388
-#define BSC_copyfile                   0x040C038C
+#define BSC_open_dprotected_np 0x040C0360
+#define BSC_getattrlist                0x040C0370
+#define BSC_setattrlist                0x040C0374
+#define BSC_getdirentriesattr  0x040C0378
+#define BSC_exchangedata       0x040C037C
+#define BSC_checkuseraccess    0x040C0380
+#define BSC_searchfs           0x040C0384
+#define BSC_delete             0x040C0388
+#define BSC_copyfile           0x040C038C
+#define BSC_fgetattrlist       0x040C0390
+#define BSC_fsetattrlist       0x040C0394
 #define BSC_getxattr           0x040C03A8
 #define BSC_fgetxattr          0x040C03AC
 #define BSC_setxattr           0x040C03B0
@@ -448,9 +336,11 @@ int                quit();
 #define BSC_fremovexattr       0x040C03BC
 #define BSC_listxattr          0x040C03C0
 #define BSC_flistxattr         0x040C03C4
-#define BSC_fsctl              0x040C03C8
-#define BSC_posix_spawn        0x040C03D0
+#define BSC_fsctl              0x040C03C8
+#define BSC_posix_spawn                0x040C03D0
+#define BSC_ffsctl             0x040C03D4
 #define BSC_open_extended      0x040C0454
+#define BSC_umask_extended     0x040C0458
 #define BSC_stat_extended      0x040C045C
 #define BSC_lstat_extended     0x040C0460
 #define BSC_fstat_extended     0x040C0464
@@ -459,7 +349,6 @@ int         quit();
 #define BSC_access_extended    0x040C0470
 #define BSC_mkfifo_extended    0x040C048C
 #define BSC_mkdir_extended     0x040C0490
-#define BSC_load_shared_file   0x040C04A0
 #define BSC_aio_fsync          0x040C04E4
 #define        BSC_aio_return          0x040C04E8
 #define BSC_aio_suspend                0x040C04EC
@@ -487,101 +376,48 @@ int              quit();
 #define BSC_write_nocancel     0x040c0634
 #define BSC_open_nocancel      0x040c0638
 #define BSC_close_nocancel      0x040c063c
-#define BSC_recvmsg_nocancel   0x040c0644
-#define BSC_sendmsg_nocancel   0x040c0648
-#define BSC_recvfrom_nocancel  0x040c064c
-#define BSC_accept_nocancel    0x040c0650
 #define BSC_msync_nocancel     0x040c0654
 #define BSC_fcntl_nocancel     0x040c0658
 #define BSC_select_nocancel    0x040c065c
 #define BSC_fsync_nocancel     0x040c0660
-#define BSC_connect_nocancel   0x040c0664
 #define BSC_readv_nocancel     0x040c066c
 #define BSC_writev_nocancel    0x040c0670
-#define BSC_sendto_nocancel    0x040c0674
 #define BSC_pread_nocancel     0x040c0678
 #define BSC_pwrite_nocancel    0x040c067c
-#define BSC_aio_suspend_nocancel       0x40c0694
+#define BSC_aio_suspend_nocancel 0x40c0694
+#define BSC_guarded_open_np    0x040c06e4
+#define BSC_guarded_open_dprotected_np 0x040c0790
+#define BSC_guarded_close_np   0x040c06e8
+#define BSC_guarded_write_np   0x040c0794
+#define BSC_guarded_pwrite_np  0x040c0798
+#define BSC_guarded_writev_np  0x040c079c
+
+#define BSC_fsgetpath          0x040c06ac
+
+#define        BSC_getattrlistbulk 0x040c0734
+
+#define BSC_openat             0x040c073c
+#define BSC_openat_nocancel    0x040c0740
+#define BSC_renameat           0x040c0744
+#define BSC_chmodat            0x040c074c
+#define BSC_chownat            0x040c0750
+#define BSC_fstatat            0x040c0754
+#define BSC_fstatat64          0x040c0758
+#define BSC_linkat             0x040c075c
+#define BSC_unlinkat           0x040c0760
+#define BSC_readlinkat         0x040c0764
+#define BSC_symlinkat          0x040c0768
+#define BSC_mkdirat            0x040c076c
+#define BSC_getattrlistat      0x040c0770
 
 #define BSC_msync_extended     0x040e0104
 #define BSC_pread_extended     0x040e0264
 #define BSC_pwrite_extended    0x040e0268
+#define BSC_guarded_pwrite_extended    0x040e0798
 #define BSC_mmap_extended      0x040e0314
 #define BSC_mmap_extended2     0x040f0314
 
-// Carbon File Manager support
-#define FILEMGR_PBGETCATALOGINFO               0x1e000020
-#define FILEMGR_PBGETCATALOGINFOBULK           0x1e000024
-#define FILEMGR_PBCREATEFILEUNICODE            0x1e000028
-#define FILEMGR_PBCREATEDIRECTORYUNICODE       0x1e00002c
-#define FILEMGR_PBCREATEFORK                   0x1e000030
-#define FILEMGR_PBDELETEFORK                   0x1e000034
-#define FILEMGR_PBITERATEFORK                  0x1e000038
-#define FILEMGR_PBOPENFORK                     0x1e00003c
-#define FILEMGR_PBREADFORK                     0x1e000040
-#define FILEMGR_PBWRITEFORK                    0x1e000044
-#define FILEMGR_PBALLOCATEFORK                 0x1e000048
-#define FILEMGR_PBDELETEOBJECT                 0x1e00004c
-#define FILEMGR_PBEXCHANGEOBJECT               0x1e000050
-#define FILEMGR_PBGETFORKCBINFO                        0x1e000054
-#define FILEMGR_PBGETVOLUMEINFO                        0x1e000058
-#define FILEMGR_PBMAKEFSREF                    0x1e00005c
-#define FILEMGR_PBMAKEFSREFUNICODE             0x1e000060
-#define FILEMGR_PBMOVEOBJECT                   0x1e000064
-#define FILEMGR_PBOPENITERATOR                 0x1e000068
-#define FILEMGR_PBRENAMEUNICODE                        0x1e00006c
-#define FILEMGR_PBSETCATALOGINFO               0x1e000070
-#define FILEMGR_PBSETVOLUMEINFO                        0x1e000074
-#define FILEMGR_FSREFMAKEPATH                  0x1e000078
-#define FILEMGR_FSPATHMAKEREF                  0x1e00007c
-
-#define FILEMGR_PBGETCATINFO                   0x1e010000
-#define FILEMGR_PBGETCATINFOLITE               0x1e010004
-#define FILEMGR_PBHGETFINFO                    0x1e010008
-#define FILEMGR_PBXGETVOLINFO                  0x1e01000c
-#define FILEMGR_PBHCREATE                      0x1e010010
-#define FILEMGR_PBHOPENDF                      0x1e010014
-#define FILEMGR_PBHOPENRF                      0x1e010018
-#define FILEMGR_PBHGETDIRACCESS                        0x1e01001c
-#define FILEMGR_PBHSETDIRACCESS                        0x1e010020
-#define FILEMGR_PBHMAPID                       0x1e010024
-#define FILEMGR_PBHMAPNAME                     0x1e010028
-#define FILEMGR_PBCLOSE                                0x1e01002c
-#define FILEMGR_PBFLUSHFILE                    0x1e010030
-#define FILEMGR_PBGETEOF                       0x1e010034
-#define FILEMGR_PBSETEOF                       0x1e010038
-#define FILEMGR_PBGETFPOS                      0x1e01003c
-#define FILEMGR_PBREAD                         0x1e010040
-#define FILEMGR_PBWRITE                                0x1e010044
-#define FILEMGR_PBGETFCBINFO                   0x1e010048
-#define FILEMGR_PBSETFINFO                     0x1e01004c
-#define FILEMGR_PBALLOCATE                     0x1e010050
-#define FILEMGR_PBALLOCCONTIG                  0x1e010054
-#define FILEMGR_PBSETFPOS                      0x1e010058
-#define FILEMGR_PBSETCATINFO                   0x1e01005c
-#define FILEMGR_PBGETVOLPARMS                  0x1e010060
-#define FILEMGR_PBSETVINFO                     0x1e010064
-#define FILEMGR_PBMAKEFSSPEC                   0x1e010068
-#define FILEMGR_PBHGETVINFO                    0x1e01006c
-#define FILEMGR_PBCREATEFILEIDREF              0x1e010070
-#define FILEMGR_PBDELETEFILEIDREF              0x1e010074
-#define FILEMGR_PBRESOLVEFILEIDREF             0x1e010078
-#define FILEMGR_PBFLUSHVOL                     0x1e01007c
-#define FILEMGR_PBHRENAME                      0x1e010080
-#define FILEMGR_PBCATMOVE                      0x1e010084
-#define FILEMGR_PBEXCHANGEFILES                        0x1e010088
-#define FILEMGR_PBHDELETE                      0x1e01008c
-#define FILEMGR_PBDIRCREATE                    0x1e010090
-#define FILEMGR_PBCATSEARCH                    0x1e010094
-#define FILEMGR_PBHSETFLOCK                    0x1e010098
-#define FILEMGR_PBHRSTFLOCK                    0x1e01009c
-#define FILEMGR_PBLOCKRANGE                    0x1e0100a0
-#define FILEMGR_PBUNLOCKRANGE                  0x1e0100a4
-
-
-#define FILEMGR_CLASS   0x1e
-#define FILEMGR_BASE   0x1e000000
-
+#define FMT_NOTHING -1
 #define        FMT_DEFAULT     0
 #define FMT_FD         1
 #define FMT_FD_IO      2
@@ -616,3151 +452,2190 @@ int           quit();
 #define FMT_MMAP       31
 #define FMT_UMASK      32
 #define FMT_SENDFILE   33
-#define FMT_SPEC_IOCTL 34
+#define FMT_IOCTL_SYNC 34
 #define FMT_MOUNT      35
 #define FMT_UNMOUNT    36
 #define FMT_DISKIO_CS  37
 #define FMT_SYNC_DISK_CS       38
-
-#define MAX_BSD_SYSCALL        512
-
-struct bsd_syscall {
-        char   *sc_name;
-        int    sc_format;
-} bsd_syscalls[MAX_BSD_SYSCALL];
-
-
-int bsd_syscall_types[] = {
-        BSC_recvmsg,
-        BSC_recvmsg_nocancel,
-       BSC_sendmsg,
-       BSC_sendmsg_nocancel,
-       BSC_recvfrom,
-       BSC_recvfrom_nocancel,
-       BSC_accept,
-       BSC_accept_nocancel,
-       BSC_select,
-       BSC_select_nocancel,
-       BSC_socket,
-       BSC_connect,
-       BSC_connect_nocancel,
-       BSC_bind,
-       BSC_listen,
-       BSC_sendto,
-       BSC_sendto_nocancel,
-       BSC_socketpair,
-       BSC_read,
-       BSC_read_nocancel,
-       BSC_write,
-       BSC_write_nocancel,
-       BSC_open,
-       BSC_open_nocancel,
-       BSC_close,
-       BSC_close_nocancel,
-       BSC_link,
-       BSC_unlink,
-       BSC_chdir,
-       BSC_fchdir,
-       BSC_mknod,
-       BSC_chmod,
-       BSC_chown,
-       BSC_access,
-       BSC_chflags,
-       BSC_fchflags,
-       BSC_sync,
-       BSC_dup,
-       BSC_revoke,
-       BSC_symlink,
-       BSC_readlink,
-       BSC_exit,
-       BSC_execve,
-       BSC_posix_spawn,
-       BSC_umask,
-       BSC_chroot,
-       BSC_dup2,
-       BSC_fsync,
-       BSC_fsync_nocancel,
-       BSC_readv,
-       BSC_readv_nocancel,
-       BSC_writev,
-       BSC_writev_nocancel,
-       BSC_fchown,
-       BSC_fchmod,
-       BSC_rename,
-       BSC_mkfifo,
-       BSC_mkdir,
-       BSC_rmdir,
-       BSC_utimes,
-       BSC_futimes,
-       BSC_pread,
-       BSC_pread_nocancel,
-       BSC_pwrite,
-       BSC_pwrite_nocancel,
-       BSC_statfs,
-       BSC_fstatfs,
-       BSC_stat,
-       BSC_fstat,
-       BSC_lstat,
-       BSC_mount,
-       BSC_unmount,
-       BSC_pathconf,
-       BSC_fpathconf,
-       BSC_getdirentries,
-       BSC_mmap,
-       BSC_lseek,
-       BSC_truncate,
-       BSC_ftruncate,
-       BSC_undelete,
-       BSC_statv,
-       BSC_lstatv,
-       BSC_fstatv,
-       BSC_mkcomplex,
-       BSC_getattrlist,
-       BSC_setattrlist,
-       BSC_getdirentriesattr,
-       BSC_exchangedata,
-       BSC_checkuseraccess,
-       BSC_searchfs,
-       BSC_delete,
-       BSC_copyfile,
-       BSC_getxattr,
-       BSC_fgetxattr,
-       BSC_setxattr,
-       BSC_fsetxattr,
-       BSC_removexattr,
-       BSC_fremovexattr,
-       BSC_listxattr,
-       BSC_flistxattr,
-       BSC_fsctl,
-       BSC_open_extended,
-       BSC_stat_extended,
-       BSC_lstat_extended,
-       BSC_fstat_extended,
-       BSC_chmod_extended,
-       BSC_fchmod_extended,
-       BSC_access_extended,
-       BSC_mkfifo_extended,
-       BSC_mkdir_extended,
-       BSC_load_shared_file,
-       BSC_aio_fsync,
-       BSC_aio_return,
-       BSC_aio_suspend,
-       BSC_aio_suspend_nocancel,
-       BSC_aio_cancel,
-       BSC_aio_error,
-       BSC_aio_read,
-       BSC_aio_write,
-       BSC_lio_listio,
-       BSC_lchown,
-       BSC_sendfile,
-       BSC_msync,
-       BSC_msync_nocancel,
-       BSC_fcntl,
-       BSC_fcntl_nocancel,
-       BSC_ioctl,
-       BSC_stat64,
-       BSC_fstat64,
-       BSC_lstat64,
-       BSC_stat64_extended,
-       BSC_lstat64_extended,
-       BSC_fstat64_extended,
-       BSC_getdirentries64,
-       BSC_statfs64,
-       BSC_fstatfs64,
-       BSC_pthread_chdir,
-       BSC_pthread_fchdir,
-       BSC_getfsstat,
-       BSC_getfsstat64,
-       0
-};
-
-
-#define MAX_FILEMGR    512
-
-struct filemgr_call {
-        char   *fm_name;
-} filemgr_calls[MAX_FILEMGR];
-
-
-int filemgr_call_types[] = {
-        FILEMGR_PBGETCATALOGINFO,
-       FILEMGR_PBGETCATALOGINFOBULK,
-       FILEMGR_PBCREATEFILEUNICODE,
-       FILEMGR_PBCREATEDIRECTORYUNICODE,
-       FILEMGR_PBCREATEFORK,
-       FILEMGR_PBDELETEFORK,
-       FILEMGR_PBITERATEFORK,
-       FILEMGR_PBOPENFORK,
-       FILEMGR_PBREADFORK,
-       FILEMGR_PBWRITEFORK,
-       FILEMGR_PBALLOCATEFORK,
-       FILEMGR_PBDELETEOBJECT,
-       FILEMGR_PBEXCHANGEOBJECT,
-       FILEMGR_PBGETFORKCBINFO,
-       FILEMGR_PBGETVOLUMEINFO,
-       FILEMGR_PBMAKEFSREF,
-       FILEMGR_PBMAKEFSREFUNICODE,
-       FILEMGR_PBMOVEOBJECT,
-       FILEMGR_PBOPENITERATOR,
-       FILEMGR_PBRENAMEUNICODE,
-       FILEMGR_PBSETCATALOGINFO,
-       FILEMGR_PBSETVOLUMEINFO,
-       FILEMGR_FSREFMAKEPATH,
-       FILEMGR_FSPATHMAKEREF,
-
-       FILEMGR_PBGETCATINFO,
-       FILEMGR_PBGETCATINFOLITE,
-       FILEMGR_PBHGETFINFO,
-       FILEMGR_PBXGETVOLINFO,
-       FILEMGR_PBHCREATE,
-       FILEMGR_PBHOPENDF,
-       FILEMGR_PBHOPENRF,
-       FILEMGR_PBHGETDIRACCESS,
-       FILEMGR_PBHSETDIRACCESS,
-       FILEMGR_PBHMAPID,
-       FILEMGR_PBHMAPNAME,
-       FILEMGR_PBCLOSE,
-       FILEMGR_PBFLUSHFILE,
-       FILEMGR_PBGETEOF,
-       FILEMGR_PBSETEOF,
-       FILEMGR_PBGETFPOS,
-       FILEMGR_PBREAD,
-       FILEMGR_PBWRITE,
-       FILEMGR_PBGETFCBINFO,
-       FILEMGR_PBSETFINFO,
-       FILEMGR_PBALLOCATE,
-       FILEMGR_PBALLOCCONTIG,
-       FILEMGR_PBSETFPOS,
-       FILEMGR_PBSETCATINFO,
-       FILEMGR_PBGETVOLPARMS,
-       FILEMGR_PBSETVINFO,
-       FILEMGR_PBMAKEFSSPEC,
-       FILEMGR_PBHGETVINFO,
-       FILEMGR_PBCREATEFILEIDREF,
-       FILEMGR_PBDELETEFILEIDREF,
-       FILEMGR_PBRESOLVEFILEIDREF,
-       FILEMGR_PBFLUSHVOL,
-       FILEMGR_PBHRENAME,
-       FILEMGR_PBCATMOVE,
-       FILEMGR_PBEXCHANGEFILES,
-       FILEMGR_PBHDELETE,
-       FILEMGR_PBDIRCREATE,
-       FILEMGR_PBCATSEARCH,
-       FILEMGR_PBHSETFLOCK,
-       FILEMGR_PBHRSTFLOCK,
-       FILEMGR_PBLOCKRANGE,
-       FILEMGR_PBUNLOCKRANGE,
-       0
-};
-
-
-
-#define MAX_PIDS 256
-int    pids[MAX_PIDS];
-
-int    num_of_pids = 0;
-int    exclude_pids = 0;
-int    exclude_default_pids = 1;
-
-
-struct kinfo_proc *kp_buffer = 0;
-int kp_nentries = 0;
-
-#define EVENT_BASE 60000
-
-int num_events = EVENT_BASE;
-
+#define FMT_IOCTL_UNMAP        39
+#define FMT_UNMAP_INFO 40
+#define FMT_HFS_update 41
+#define FMT_FLOCK      42
+#define FMT_AT         43
+#define FMT_CHMODAT    44
+#define FMT_OPENAT  45
+#define FMT_RENAMEAT   46
+#define FMT_IOCTL_SYNCCACHE 47
+#define FMT_GUARDED_OPEN 48
 
 #define DBG_FUNC_ALL   (DBG_FUNC_START | DBG_FUNC_END)
-#define DBG_FUNC_MASK  0xfffffffc
-
-double divisor = 0.0;       /* Trace divisor converts to microseconds */
-
-int mib[6];
-size_t needed;
-char  *my_buffer;
-
-kbufinfo_t bufinfo = {0, 0, 0, 0, 0};
-
-
-/* defines for tracking file descriptor state */
-#define FS_USAGE_FD_SETSIZE 256                /* Initial number of file descriptors per
-                                          thread that we will track */
-
-#define FS_USAGE_NFDBITS      (sizeof (unsigned long) * 8)
-#define FS_USAGE_NFDBYTES(n)  (((n) / FS_USAGE_NFDBITS) * sizeof (unsigned long))
-
-int trace_enabled = 0;
-int set_remove_flag = 1;
-
-char *RAW_file = (char *)0;
-int   RAW_flag = 0;
-int   RAW_fd = 0;
-
-uint64_t sample_TOD_secs;
-uint32_t sample_TOD_usecs;
 
-double bias_now = 0.0;
-double start_time = 0.0;
-double end_time = 999999999999.9;
+#pragma mark global state
 
-
-void set_numbufs();
-void set_init();
-void set_enable();
-void sample_sc();
-int quit();
+ktrace_session_t s;
+bool BC_flag = false;
+bool RAW_flag = false;
+bool wideflag = false;
+bool include_waited_flag = false;
+bool want_kernel_task = true;
+dispatch_source_t stop_timer, sigquit_source, sigpipe_source, sighup_source, sigterm_source, sigwinch_source;
+uint64_t mach_time_of_first_event;
+uint64_t start_time_ns = 0;
+uint64_t end_time_ns = UINT64_MAX;
+unsigned int columns = 0;
 
 /*
- *  signal handlers
+ * Network only or filesystem only output filter
+ * Default of zero means report all activity - no filtering
  */
+#define FILESYS_FILTER    0x01
+#define NETWORK_FILTER    0x02
+#define EXEC_FILTER      0x08
+#define PATHNAME_FILTER          0x10
+#define DISKIO_FILTER  0x20
+#define DEFAULT_DO_NOT_FILTER  0x00
 
-void leave()                   /* exit under normal conditions -- INT handler */
-{
-        int i;
-       void set_enable();
-       void set_pidcheck();
-       void set_pidexclude();
-       void set_remove();
-
-       fflush(0);
-
-       set_enable(0);
-
-       if (exclude_pids == 0) {
-               for (i = 0; i < num_of_pids; i++)
-                       set_pidcheck(pids[i], 0);
-       }
-       else {
-               for (i = 0; i < num_of_pids; i++)
-                       set_pidexclude(pids[i], 0);
-       }
-       set_remove();
-       exit(0);
-}
-
-
-int
-quit(s)
-char *s;
-{
-        if (trace_enabled)
-              set_enable(0);
+int filter_mode = DEFAULT_DO_NOT_FILTER;
+bool show_cachehits = false;
 
-       /* 
-        * This flag is turned off when calling
-        * quit() due to a set_remove() failure.
-        */
-       if (set_remove_flag)
-               set_remove();
+#pragma mark syscall lookup table
 
-        fprintf(stderr, "fs_usage: ");
-       if (s)
-               fprintf(stderr, "%s", s);
+#define MAX_BSD_SYSCALL        526
 
-       exit(1);
-}
+struct bsd_syscall {
+       char *sc_name;
+       int     sc_format;
+};
 
+#define NORMAL_SYSCALL(name) \
+       [BSC_INDEX(BSC_##name)] = {#name, FMT_DEFAULT}
+
+#define SYSCALL(name, format) \
+       [BSC_INDEX(BSC_##name)] = {#name, format}
+
+#define SYSCALL_NAMED(name, displayname, format) \
+       [BSC_INDEX(BSC_##name)] = {#displayname, format}
+
+#define SYSCALL_WITH_NOCANCEL(name, format) \
+       [BSC_INDEX(BSC_##name)] = {#name, format}, \
+       [BSC_INDEX(BSC_##name##_nocancel)] = {#name, format}
+
+const struct bsd_syscall bsd_syscalls[MAX_BSD_SYSCALL] = {
+       SYSCALL(sendfile, FMT_FD), /* this should be changed to FMT_SENDFILE once we add an extended info trace event */
+       SYSCALL_WITH_NOCANCEL(recvmsg, FMT_FD_IO),
+       SYSCALL_WITH_NOCANCEL(sendmsg, FMT_FD_IO),
+       SYSCALL_WITH_NOCANCEL(recvfrom, FMT_FD_IO),
+       SYSCALL_WITH_NOCANCEL(sendto, FMT_FD_IO),
+       SYSCALL_WITH_NOCANCEL(select, FMT_SELECT),
+       SYSCALL_WITH_NOCANCEL(accept, FMT_FD_2),
+       SYSCALL(socket, FMT_SOCKET),
+       SYSCALL_WITH_NOCANCEL(connect, FMT_FD),
+       SYSCALL(bind, FMT_FD),
+       SYSCALL(listen, FMT_FD),
+       SYSCALL(mmap, FMT_MMAP),
+       NORMAL_SYSCALL(socketpair),
+       NORMAL_SYSCALL(getxattr),
+       NORMAL_SYSCALL(setxattr),
+       NORMAL_SYSCALL(removexattr),
+       NORMAL_SYSCALL(listxattr),
+       NORMAL_SYSCALL(stat),
+       NORMAL_SYSCALL(stat64),
+       NORMAL_SYSCALL(stat_extended),
+       SYSCALL_NAMED(stat64_extended, stat_extended64, FMT_DEFAULT), /* should be stat64_extended ? */
+       SYSCALL(mount, FMT_MOUNT),
+       SYSCALL(unmount, FMT_UNMOUNT),
+       NORMAL_SYSCALL(exit),
+       NORMAL_SYSCALL(execve),
+       NORMAL_SYSCALL(posix_spawn),
+       SYSCALL_WITH_NOCANCEL(open, FMT_OPEN),
+       SYSCALL(open_extended, FMT_OPEN),
+       SYSCALL(guarded_open_np, FMT_GUARDED_OPEN),
+       SYSCALL_NAMED(open_dprotected_np, open_dprotected, FMT_OPEN),
+       SYSCALL(guarded_open_dprotected_np, FMT_GUARDED_OPEN),
+       SYSCALL(dup, FMT_FD_2),
+       SYSCALL(dup2, FMT_FD_2),
+       SYSCALL_WITH_NOCANCEL(close, FMT_FD),
+       SYSCALL(guarded_close_np, FMT_FD),
+       SYSCALL_WITH_NOCANCEL(read, FMT_FD_IO),
+       SYSCALL_WITH_NOCANCEL(write, FMT_FD_IO),
+       SYSCALL(guarded_write_np, FMT_FD_IO),
+       SYSCALL(guarded_pwrite_np, FMT_PREAD),
+       SYSCALL(guarded_writev_np, FMT_FD_IO),
+       SYSCALL(fgetxattr, FMT_FD),
+       SYSCALL(fsetxattr, FMT_FD),
+       SYSCALL(fremovexattr, FMT_FD),
+       SYSCALL(flistxattr, FMT_FD),
+       SYSCALL(fstat, FMT_FD),
+       SYSCALL(fstat64, FMT_FD),
+       SYSCALL(fstat_extended, FMT_FD),
+       SYSCALL(fstat64_extended, FMT_FD),
+       NORMAL_SYSCALL(lstat),
+       NORMAL_SYSCALL(lstat64),
+       NORMAL_SYSCALL(lstat_extended),
+       SYSCALL_NAMED(lstat64_extended, lstat_extended64, FMT_DEFAULT),
+       NORMAL_SYSCALL(link),
+       NORMAL_SYSCALL(unlink),
+       NORMAL_SYSCALL(mknod),
+       SYSCALL(umask, FMT_UMASK),
+       SYSCALL(umask_extended, FMT_UMASK),
+       SYSCALL(chmod, FMT_CHMOD),
+       SYSCALL(chmod_extended, FMT_CHMOD_EXT),
+       SYSCALL(fchmod, FMT_FCHMOD),
+       SYSCALL(fchmod_extended, FMT_FCHMOD_EXT),
+       NORMAL_SYSCALL(chown),
+       NORMAL_SYSCALL(lchown),
+       SYSCALL(fchown, FMT_FD),
+       SYSCALL(access, FMT_ACCESS),
+       NORMAL_SYSCALL(access_extended),
+       NORMAL_SYSCALL(chdir),
+       NORMAL_SYSCALL(pthread_chdir),
+       NORMAL_SYSCALL(chroot),
+       NORMAL_SYSCALL(utimes),
+       SYSCALL_NAMED(delete, delete-Carbon, FMT_DEFAULT),
+       NORMAL_SYSCALL(undelete),
+       NORMAL_SYSCALL(revoke),
+       NORMAL_SYSCALL(fsctl),
+       SYSCALL(ffsctl, FMT_FD),
+       SYSCALL(chflags, FMT_CHFLAGS),
+       SYSCALL(fchflags, FMT_FCHFLAGS),
+       SYSCALL(fchdir, FMT_FD),
+       SYSCALL(pthread_fchdir, FMT_FD),
+       SYSCALL(futimes, FMT_FD),
+       NORMAL_SYSCALL(sync),
+       NORMAL_SYSCALL(symlink),
+       NORMAL_SYSCALL(readlink),
+       SYSCALL_WITH_NOCANCEL(fsync, FMT_FD),
+       SYSCALL(fdatasync, FMT_FD),
+       SYSCALL_WITH_NOCANCEL(readv, FMT_FD_IO),
+       SYSCALL_WITH_NOCANCEL(writev, FMT_FD_IO),
+       SYSCALL_WITH_NOCANCEL(pread, FMT_PREAD),
+       SYSCALL_WITH_NOCANCEL(pwrite, FMT_PREAD),
+       NORMAL_SYSCALL(mkdir),
+       NORMAL_SYSCALL(mkdir_extended),
+       NORMAL_SYSCALL(mkfifo),
+       NORMAL_SYSCALL(mkfifo_extended),
+       NORMAL_SYSCALL(rmdir),
+       NORMAL_SYSCALL(statfs),
+       NORMAL_SYSCALL(statfs64),
+       NORMAL_SYSCALL(getfsstat),
+       NORMAL_SYSCALL(getfsstat64),
+       SYSCALL(fstatfs, FMT_FD),
+       SYSCALL(fstatfs64, FMT_FD),
+       NORMAL_SYSCALL(pathconf),
+       SYSCALL(fpathconf, FMT_FD),
+       SYSCALL(getdirentries, FMT_FD_IO),
+       SYSCALL(getdirentries64, FMT_FD_IO),
+       SYSCALL(lseek, FMT_LSEEK),
+       SYSCALL(truncate, FMT_TRUNC),
+       SYSCALL(ftruncate, FMT_FTRUNC),
+       SYSCALL(flock, FMT_FLOCK),
+       NORMAL_SYSCALL(getattrlist),
+       NORMAL_SYSCALL(setattrlist),
+       SYSCALL(fgetattrlist, FMT_FD),
+       SYSCALL(fsetattrlist, FMT_FD),
+       SYSCALL(getdirentriesattr, FMT_FD),
+       NORMAL_SYSCALL(exchangedata),
+       NORMAL_SYSCALL(rename),
+       NORMAL_SYSCALL(copyfile),
+       NORMAL_SYSCALL(checkuseraccess),
+       NORMAL_SYSCALL(searchfs),
+       SYSCALL(aio_fsync, FMT_AIO_FSYNC),
+       SYSCALL(aio_return, FMT_AIO_RETURN),
+       SYSCALL_WITH_NOCANCEL(aio_suspend, FMT_AIO_SUSPEND),
+       SYSCALL(aio_cancel, FMT_AIO_CANCEL),
+       SYSCALL(aio_error, FMT_AIO),
+       SYSCALL(aio_read, FMT_AIO),
+       SYSCALL(aio_write, FMT_AIO),
+       SYSCALL(lio_listio, FMT_LIO_LISTIO),
+       SYSCALL_WITH_NOCANCEL(msync, FMT_MSYNC),
+       SYSCALL_WITH_NOCANCEL(fcntl, FMT_FCNTL),
+       SYSCALL(ioctl, FMT_IOCTL),
+       NORMAL_SYSCALL(fsgetpath),
+       NORMAL_SYSCALL(getattrlistbulk),
+       SYSCALL_WITH_NOCANCEL(openat, FMT_OPENAT), /* open_nocancel() was previously shown as "open_nocanel" (note spelling) */
+       SYSCALL(renameat, FMT_RENAMEAT),
+       SYSCALL(chmodat, FMT_CHMODAT),
+       SYSCALL(chownat, FMT_AT),
+       SYSCALL(fstatat, FMT_AT),
+       SYSCALL(fstatat64, FMT_AT),
+       SYSCALL(linkat, FMT_AT),
+       SYSCALL(unlinkat, FMT_AT),
+       SYSCALL(readlinkat, FMT_AT),
+       SYSCALL(symlinkat, FMT_AT),
+       SYSCALL(mkdirat, FMT_AT),
+       SYSCALL(getattrlistat, FMT_AT),
+};
 
-void get_screenwidth()
+static void
+get_screenwidth(void)
 {
-        struct winsize size;
+       struct winsize size;
 
        columns = MAXCOLS;
 
-       if (isatty(1)) {
-               if (ioctl(1, TIOCGWINSZ, &size) != -1) {
-                       columns = size.ws_col;
+       if (isatty(STDOUT_FILENO)) {
+               if (ioctl(1, TIOCGWINSZ, &size) != -1) {
+                       columns = size.ws_col;
 
                        if (columns > MAXWIDTH)
-                               columns = MAXWIDTH;
+                               columns = MAXWIDTH;
                }
        }
 }
 
-
-void sigwinch()
-{
-        if (!wideflag)
-               get_screenwidth();
-}
-
-
-void getdivisor()
+static uint64_t
+mach_to_nano(uint64_t mach)
 {
-       struct mach_timebase_info mti;
+       uint64_t nanoseconds = 0;
+       os_assert(ktrace_convert_timestamp_to_nanoseconds(s, mach, &nanoseconds) == 0);
 
-       mach_timebase_info(&mti);
-
-       divisor = ((double)mti.denom / (double)mti.numer) * 1000;
+       return nanoseconds;
 }
 
+static void
+exit_usage(void)
+{
+       const char *myname;
 
-int
-exit_usage(char *myname) {
+       myname = getprogname();
 
-       fprintf(stderr, "Usage: %s [-e] [-w] [-f mode] [-R rawfile [-S start_time] [-E end_time]] [pid | cmd [pid | cmd]....]\n", myname);
+       fprintf(stderr, "Usage: %s [-e] [-w] [-f mode] [-b] [-t seconds] [-R rawfile [-S start_time] [-E end_time]] [pid | cmd [pid | cmd] ...]\n", myname);
        fprintf(stderr, "  -e    exclude the specified list of pids from the sample\n");
        fprintf(stderr, "        and exclude fs_usage by default\n");
        fprintf(stderr, "  -w    force wider, detailed, output\n");
-       fprintf(stderr, "  -f    Output is based on the mode provided\n");
-       fprintf(stderr, "          mode = \"network\"  Show only network related output\n");
-       fprintf(stderr, "          mode = \"filesys\"  Show only file system related output\n");
-       fprintf(stderr, "          mode = \"pathname\" Show only pathname related output\n");
-       fprintf(stderr, "          mode = \"exec\"     Show only execs\n");
-       fprintf(stderr, "          mode = \"cachehit\" In addition, show cachehits\n");
+       fprintf(stderr, "  -f    output is based on the mode provided\n");
+       fprintf(stderr, "          mode = \"network\"  Show network-related events\n");
+       fprintf(stderr, "          mode = \"filesys\"  Show filesystem-related events\n");
+       fprintf(stderr, "          mode = \"pathname\" Show only pathname-related events\n");
+       fprintf(stderr, "          mode = \"exec\"     Show only exec and spawn events\n");
+       fprintf(stderr, "          mode = \"diskio\"   Show only disk I/O events\n");
+       fprintf(stderr, "          mode = \"cachehit\" In addition, show cache hits\n");
+       fprintf(stderr, "  -b    annotate disk I/O events with BootCache info (if available)\n");
+       fprintf(stderr, "  -t    specifies timeout in seconds (for use in automated tools)\n");
        fprintf(stderr, "  -R    specifies a raw trace file to process\n");
        fprintf(stderr, "  -S    if -R is specified, selects a start point in microseconds\n");
        fprintf(stderr, "  -E    if -R is specified, selects an end point in microseconds\n");
        fprintf(stderr, "  pid   selects process(s) to sample\n");
        fprintf(stderr, "  cmd   selects process(s) matching command string to sample\n");
-       fprintf(stderr, "\n%s will handle a maximum list of %d pids.\n\n", myname, MAX_PIDS);
        fprintf(stderr, "By default (no options) the following processes are excluded from the output:\n");
        fprintf(stderr, "fs_usage, Terminal, telnetd, sshd, rlogind, tcsh, csh, sh\n\n");
 
        exit(1);
 }
 
+static void fs_usage_cleanup(const char *message)
+{
+       if (s){
+               ktrace_session_destroy(s);
+       }
 
-int filemgr_index(type) {
+       fprintf(stderr, "Cleaning up tracing state because of %s\n", message);
+}
 
-        if (type & 0x10000)
-               return (((type >> 2) & 0x3fff) + 256);
+int
+main(int argc, char *argv[])
+{
+       char ch;
+       int rv;
+       bool exclude_pids = false;
+       uint64_t time_limit_ns = 0;
 
-        return (((type >> 2) & 0x3fff));
-}
+       os_set_crash_callback(&fs_usage_cleanup);
 
+       get_screenwidth();
 
-void init_tables(void)
-{      int i;
-        int type; 
-        int code; 
+       s = ktrace_session_create();
+       os_assert(s != NULL);
+       (void)ktrace_ignore_process_filter_for_event(s, P_WrData);
+       (void)ktrace_ignore_process_filter_for_event(s, P_RdData);
+       (void)ktrace_ignore_process_filter_for_event(s, P_WrMeta);
+       (void)ktrace_ignore_process_filter_for_event(s, P_RdMeta);
+       (void)ktrace_ignore_process_filter_for_event(s, P_PgOut);
+       (void)ktrace_ignore_process_filter_for_event(s, P_PgIn);
+
+       while ((ch = getopt(argc, argv, "bewf:R:S:E:t:W")) != -1) {
+               switch (ch) {
+                       case 'e':
+                               exclude_pids = true;
+                               break;
 
+                       case 'w':
+                               wideflag = 1;
+                               columns = MAX_WIDE_MODE_COLS;
+                               break;
 
-       for (i = 0; i < MAX_BSD_SYSCALL; i++) {
-               bsd_syscalls[i].sc_name = NULL;
-               bsd_syscalls[i].sc_format = FMT_DEFAULT;
-       }
+                       case 'W':
+                               include_waited_flag = true;
+                               break;
 
-       for (i = 0; i < MAX_FILEMGR; i++) {
-               filemgr_calls[i].fm_name = NULL;
-       }
+                       case 'f':
+                               if (!strcmp(optarg, "network"))
+                                       filter_mode |= NETWORK_FILTER;
+                               else if (!strcmp(optarg, "filesys"))
+                                       filter_mode |= FILESYS_FILTER;
+                               else if (!strcmp(optarg, "cachehit"))
+                                       show_cachehits = true;
+                               else if (!strcmp(optarg, "exec"))
+                                       filter_mode |= EXEC_FILTER;
+                               else if (!strcmp(optarg, "pathname"))
+                                       filter_mode |= PATHNAME_FILTER;
+                               else if (!strcmp(optarg, "diskio"))
+                                       filter_mode |= DISKIO_FILTER;
 
-       for (i = 0; (type = bsd_syscall_types[i]); i++) {
+                               break;
 
-               code = BSC_INDEX(type);
+                       case 'b':
+                               BC_flag = true;
+                               break;
 
-               if (code >= MAX_BSD_SYSCALL) {
-                       printf("BSD syscall init (%x):  type exceeds table size\n", type);
-                       continue;
-               }
-               switch (type) {
+                       case 't':
+                               time_limit_ns = (uint64_t)(NSEC_PER_SEC * atof(optarg));
+                               if (time_limit_ns == 0) {
+                                       fprintf(stderr, "ERROR: could not set time limit to %s\n",
+                                                       optarg);
+                                       exit(1);
+                               }
+                               break;
 
-                   case BSC_sendfile:
-                     bsd_syscalls[code].sc_name = "sendfile";
-                     bsd_syscalls[code].sc_format = FMT_FD;            /* this should be changed to FMT_SENDFILE */
-                     break;                                            /* once we add an extended info trace event */
-                   
-                   case BSC_recvmsg:
-                   case BSC_recvmsg_nocancel:
-                     bsd_syscalls[code].sc_name = "recvmsg";
-                     bsd_syscalls[code].sc_format = FMT_FD_IO;
-                     break;
-
-                   case BSC_sendmsg:
-                   case BSC_sendmsg_nocancel:
-                     bsd_syscalls[code].sc_name = "sendmsg";
-                     bsd_syscalls[code].sc_format = FMT_FD_IO;
-                     break;
-
-                   case BSC_recvfrom:
-                   case BSC_recvfrom_nocancel:
-                     bsd_syscalls[code].sc_name = "recvfrom";
-                     bsd_syscalls[code].sc_format = FMT_FD_IO;
-                     break;
-
-                   case BSC_sendto:
-                   case BSC_sendto_nocancel:
-                     bsd_syscalls[code].sc_name = "sendto";
-                     bsd_syscalls[code].sc_format = FMT_FD_IO;
-                     break;
-
-                   case BSC_select:
-                   case BSC_select_nocancel:
-                     bsd_syscalls[code].sc_name = "select";
-                     bsd_syscalls[code].sc_format = FMT_SELECT;
-                     break;
-                   
-                   case BSC_accept:
-                   case BSC_accept_nocancel:
-                     bsd_syscalls[code].sc_name = "accept";
-                     bsd_syscalls[code].sc_format = FMT_FD_2;
-                     break;
-                   
-                   case BSC_socket:
-                     bsd_syscalls[code].sc_name = "socket";
-                     bsd_syscalls[code].sc_format = FMT_SOCKET;
-                     break;
-
-                   case BSC_connect:
-                   case BSC_connect_nocancel:
-                     bsd_syscalls[code].sc_name = "connect";
-                     bsd_syscalls[code].sc_format = FMT_FD;
-                     break;
-
-                   case BSC_bind:
-                     bsd_syscalls[code].sc_name = "bind";
-                     bsd_syscalls[code].sc_format = FMT_FD;
-                     break;
-
-                   case BSC_listen:
-                     bsd_syscalls[code].sc_name = "listen";
-                     bsd_syscalls[code].sc_format = FMT_FD;
-                     break;
-
-                   case BSC_mmap:
-                     bsd_syscalls[code].sc_name = "mmap";
-                     bsd_syscalls[code].sc_format = FMT_MMAP;
-                     break;
-                   
-                   case BSC_socketpair:
-                     bsd_syscalls[code].sc_name = "socketpair";
-                     break;
-                   
-                   case BSC_getxattr:
-                     bsd_syscalls[code].sc_name = "getxattr";
-                     break;
-                    
-                   case BSC_setxattr:
-                     bsd_syscalls[code].sc_name = "setxattr";
-                     break;
-                    
-                   case BSC_removexattr:
-                     bsd_syscalls[code].sc_name = "removexattr";
-                     break;
-                    
-                   case BSC_listxattr:
-                     bsd_syscalls[code].sc_name = "listxattr";
-                     break;
-                    
-                   case BSC_stat:
-                     bsd_syscalls[code].sc_name = "stat";
-                     break;
-                    
-                   case BSC_stat64:
-                     bsd_syscalls[code].sc_name = "stat64";
-                     break;
-                    
-                   case BSC_stat_extended:
-                     bsd_syscalls[code].sc_name = "stat_extended";
-                     break;
-                    
-                   case BSC_stat64_extended:
-                     bsd_syscalls[code].sc_name = "stat_extended64";
-                     break;
-
-                   case BSC_mount:
-                     bsd_syscalls[code].sc_name = "mount";
-                     bsd_syscalls[code].sc_format = FMT_MOUNT;
-                     break;
-
-                   case BSC_unmount:
-                     bsd_syscalls[code].sc_name = "unmount";
-                     bsd_syscalls[code].sc_format = FMT_UNMOUNT;
-                     break;
-
-                   case BSC_exit:
-                     bsd_syscalls[code].sc_name = "exit";
-                     break;
-
-                   case BSC_execve:
-                     bsd_syscalls[code].sc_name = "execve";
-                     break;
-                    
-                   case BSC_posix_spawn:
-                     bsd_syscalls[code].sc_name = "posix_spawn";
-                     break;
-                    
-                   case BSC_load_shared_file:
-                     bsd_syscalls[code].sc_name = "load_sf";
-                     break;
-
-                   case BSC_open:
-                   case BSC_open_nocancel:
-                     bsd_syscalls[code].sc_name = "open";
-                     bsd_syscalls[code].sc_format = FMT_OPEN;
-                     break;
-
-                   case BSC_open_extended:
-                     bsd_syscalls[code].sc_name = "open_extended";
-                     bsd_syscalls[code].sc_format = FMT_OPEN;
-                     break;
-
-                   case BSC_dup:
-                     bsd_syscalls[code].sc_name = "dup";
-                     bsd_syscalls[code].sc_format = FMT_FD_2;
-                     break;
-
-                   case BSC_dup2:
-                     bsd_syscalls[code].sc_name = "dup2";
-                     bsd_syscalls[code].sc_format = FMT_FD_2;
-                     break;                
-
-                   case BSC_close:
-                   case BSC_close_nocancel:
-                     bsd_syscalls[code].sc_name = "close";
-                     bsd_syscalls[code].sc_format = FMT_FD;
-                     break;
-
-                   case BSC_read:
-                   case BSC_read_nocancel:
-                     bsd_syscalls[code].sc_name = "read";
-                     bsd_syscalls[code].sc_format = FMT_FD_IO;
-                     break;
-
-                   case BSC_write:
-                   case BSC_write_nocancel:
-                     bsd_syscalls[code].sc_name = "write";
-                     bsd_syscalls[code].sc_format = FMT_FD_IO;
-                     break;
-
-                   case BSC_fgetxattr:
-                     bsd_syscalls[code].sc_name = "fgetxattr";
-                     bsd_syscalls[code].sc_format = FMT_FD;
-                     break;
-
-                   case BSC_fsetxattr:
-                     bsd_syscalls[code].sc_name = "fsetxattr";
-                     bsd_syscalls[code].sc_format = FMT_FD;
-                     break;
-
-                   case BSC_fremovexattr:
-                     bsd_syscalls[code].sc_name = "fremovexattr";
-                     bsd_syscalls[code].sc_format = FMT_FD;
-                     break;
-
-                   case BSC_flistxattr:
-                     bsd_syscalls[code].sc_name = "flistxattr";
-                     bsd_syscalls[code].sc_format = FMT_FD;
-                     break;
-
-                   case BSC_fstat:
-                     bsd_syscalls[code].sc_name = "fstat";
-                     bsd_syscalls[code].sc_format = FMT_FD;
-                     break;
-
-                   case BSC_fstat64:
-                     bsd_syscalls[code].sc_name = "fstat64";
-                     bsd_syscalls[code].sc_format = FMT_FD;
-                     break;
-
-                   case BSC_fstat_extended:
-                     bsd_syscalls[code].sc_name = "fstat_extended";
-                     bsd_syscalls[code].sc_format = FMT_FD;
-                     break;
-
-                   case BSC_fstat64_extended:
-                     bsd_syscalls[code].sc_name = "fstat64_extended";
-                     bsd_syscalls[code].sc_format = FMT_FD;
-                     break;
-
-                   case BSC_lstat:
-                     bsd_syscalls[code].sc_name = "lstat";
-                     break;
-
-                   case BSC_lstat64:
-                     bsd_syscalls[code].sc_name = "lstat64";
-                     break;
-
-                   case BSC_lstat_extended:
-                     bsd_syscalls[code].sc_name = "lstat_extended";
-                     break;
-
-                   case BSC_lstat64_extended:
-                     bsd_syscalls[code].sc_name = "lstat_extended64";
-                     break;
-
-                   case BSC_lstatv:
-                     bsd_syscalls[code].sc_name = "lstatv";
-                     break;
-
-                   case BSC_link:
-                     bsd_syscalls[code].sc_name = "link";
-                     break;
-
-                   case BSC_unlink:
-                     bsd_syscalls[code].sc_name = "unlink";
-                     break;
-
-                   case BSC_mknod:
-                     bsd_syscalls[code].sc_name = "mknod";
-                     break;
-
-                   case BSC_umask:
-                     bsd_syscalls[code].sc_name = "umask";
-                     bsd_syscalls[code].sc_format = FMT_UMASK;
-                     break;
-
-                   case BSC_chmod:
-                     bsd_syscalls[code].sc_name = "chmod";
-                     bsd_syscalls[code].sc_format = FMT_CHMOD;
-                     break;
-
-                   case BSC_chmod_extended:
-                     bsd_syscalls[code].sc_name = "chmod_extended";
-                     bsd_syscalls[code].sc_format = FMT_CHMOD_EXT;
-                     break;
-
-                   case BSC_fchmod:
-                     bsd_syscalls[code].sc_name = "fchmod";
-                     bsd_syscalls[code].sc_format = FMT_FCHMOD;
-                     break;
-
-                   case BSC_fchmod_extended:
-                     bsd_syscalls[code].sc_name = "fchmod_extended";
-                     bsd_syscalls[code].sc_format = FMT_FCHMOD_EXT;
-                     break;
-
-                   case BSC_chown:
-                     bsd_syscalls[code].sc_name = "chown";
-                     break;
-
-                   case BSC_lchown:
-                     bsd_syscalls[code].sc_name = "lchown";
-                     break;
-
-                   case BSC_fchown:
-                     bsd_syscalls[code].sc_name = "fchown";
-                     bsd_syscalls[code].sc_format = FMT_FD;
-                     break;
-
-                   case BSC_access:
-                     bsd_syscalls[code].sc_name = "access";
-                     bsd_syscalls[code].sc_format = FMT_ACCESS;
-                     break;
-
-                   case BSC_access_extended:
-                     bsd_syscalls[code].sc_name = "access_extended";
-                     break;
-
-                   case BSC_chdir:
-                     bsd_syscalls[code].sc_name = "chdir";
-                     break;
-                    
-                   case BSC_pthread_chdir:
-                     bsd_syscalls[code].sc_name = "pthread_chdir";
-                     break;
-                    
-                   case BSC_chroot:
-                     bsd_syscalls[code].sc_name = "chroot";
-                     break;
-                    
-                   case BSC_utimes:
-                     bsd_syscalls[code].sc_name = "utimes";
-                     break;
-                    
-                   case BSC_delete:
-                     bsd_syscalls[code].sc_name = "delete-Carbon";
-                     break;
-                    
-                   case BSC_undelete:
-                     bsd_syscalls[code].sc_name = "undelete";
-                     break;
-                    
-                   case BSC_revoke:
-                     bsd_syscalls[code].sc_name = "revoke";
-                     break;
-                    
-                   case BSC_fsctl:
-                     bsd_syscalls[code].sc_name = "fsctl";
-                     break;
-                    
-                   case BSC_chflags:
-                     bsd_syscalls[code].sc_name = "chflags";
-                     bsd_syscalls[code].sc_format = FMT_CHFLAGS;
-                     break;
-                    
-                   case BSC_fchflags:
-                     bsd_syscalls[code].sc_name = "fchflags";
-                     bsd_syscalls[code].sc_format = FMT_FCHFLAGS;
-                     break;
-                    
-                   case BSC_fchdir:
-                     bsd_syscalls[code].sc_name = "fchdir";
-                     bsd_syscalls[code].sc_format = FMT_FD;
-                     break;
-                    
-                   case BSC_pthread_fchdir:
-                     bsd_syscalls[code].sc_name = "pthread_fchdir";
-                     bsd_syscalls[code].sc_format = FMT_FD;
-                     break;
-                    
-                   case BSC_futimes:
-                     bsd_syscalls[code].sc_name = "futimes";
-                     bsd_syscalls[code].sc_format = FMT_FD;
-                     break;
-
-                   case BSC_sync:
-                     bsd_syscalls[code].sc_name = "sync";
-                     break;
-
-                   case BSC_symlink:
-                     bsd_syscalls[code].sc_name = "symlink";
-                     break;
-
-                   case BSC_readlink:
-                     bsd_syscalls[code].sc_name = "readlink";
-                     break;
-
-                   case BSC_fsync:
-                   case BSC_fsync_nocancel:
-                     bsd_syscalls[code].sc_name = "fsync";
-                     bsd_syscalls[code].sc_format = FMT_FD;
-                     break;
-
-                   case BSC_readv:
-                   case BSC_readv_nocancel:
-                     bsd_syscalls[code].sc_name = "readv";
-                     bsd_syscalls[code].sc_format = FMT_FD_IO;
-                     break;
-
-                   case BSC_writev:
-                   case BSC_writev_nocancel:
-                     bsd_syscalls[code].sc_name = "writev";
-                     bsd_syscalls[code].sc_format = FMT_FD_IO;
-                     break;
-
-                   case BSC_pread:
-                   case BSC_pread_nocancel:
-                     bsd_syscalls[code].sc_name = "pread";
-                     bsd_syscalls[code].sc_format = FMT_PREAD;
-                     break;
-
-                   case BSC_pwrite:
-                   case BSC_pwrite_nocancel:
-                     bsd_syscalls[code].sc_name = "pwrite";
-                     bsd_syscalls[code].sc_format = FMT_PREAD;
-                     break;
-
-                   case BSC_mkdir:
-                     bsd_syscalls[code].sc_name = "mkdir";
-                     break;
-                    
-                   case BSC_mkdir_extended:
-                     bsd_syscalls[code].sc_name = "mkdir_extended";
-                     break;
-                    
-                   case BSC_mkfifo:
-                     bsd_syscalls[code].sc_name = "mkfifo";
-                     break;
-
-                   case BSC_mkfifo_extended:
-                     bsd_syscalls[code].sc_name = "mkfifo_extended";
-                     break;
-
-                   case BSC_rmdir:
-                     bsd_syscalls[code].sc_name = "rmdir";
-                     break;
-
-                   case BSC_statfs:
-                     bsd_syscalls[code].sc_name = "statfs";
-                     break;
-
-                   case BSC_statfs64:
-                     bsd_syscalls[code].sc_name = "statfs64";
-                     break;
-
-                   case BSC_getfsstat:
-                     bsd_syscalls[code].sc_name = "getfsstat";
-                     break;
-
-                   case BSC_getfsstat64:
-                     bsd_syscalls[code].sc_name = "getfsstat64";
-                     break;
-
-                   case BSC_fstatfs:
-                     bsd_syscalls[code].sc_name = "fstatfs";
-                     bsd_syscalls[code].sc_format = FMT_FD;
-                     break;
-
-                   case BSC_fstatfs64:
-                     bsd_syscalls[code].sc_name = "fstatfs64";
-                     bsd_syscalls[code].sc_format = FMT_FD;
-                     break;
-
-                   case BSC_pathconf:
-                     bsd_syscalls[code].sc_name = "pathconf";
-                     break;
-
-                   case BSC_fpathconf:
-                     bsd_syscalls[code].sc_name = "fpathconf";
-                     bsd_syscalls[code].sc_format = FMT_FD;
-                     break;
-
-                   case BSC_getdirentries:
-                     bsd_syscalls[code].sc_name = "getdirentries";
-                     bsd_syscalls[code].sc_format = FMT_FD_IO;
-                     break;
-
-                   case BSC_getdirentries64:
-                     bsd_syscalls[code].sc_name = "getdirentries64";
-                     bsd_syscalls[code].sc_format = FMT_FD_IO;
-                     break;
-
-                   case BSC_lseek:
-                     bsd_syscalls[code].sc_name = "lseek";
-                     bsd_syscalls[code].sc_format = FMT_LSEEK;
-                     break;
-
-                   case BSC_truncate:
-                     bsd_syscalls[code].sc_name = "truncate";
-                     bsd_syscalls[code].sc_format = FMT_TRUNC;
-                     break;
-
-                   case BSC_ftruncate:
-                     bsd_syscalls[code].sc_name = "ftruncate";
-                     bsd_syscalls[code].sc_format = FMT_FTRUNC;
-                     break;
-
-                   case BSC_statv:
-                     bsd_syscalls[code].sc_name = "statv";
-                     break;
-
-                   case BSC_fstatv:
-                     bsd_syscalls[code].sc_name = "fstatv";
-                     bsd_syscalls[code].sc_format = FMT_FD;
-                     break;
-
-                   case BSC_mkcomplex:
-                     bsd_syscalls[code].sc_name = "mkcomplex";
-                     break;
-
-                   case BSC_getattrlist:
-                     bsd_syscalls[code].sc_name = "getattrlist";
-                     break;
-
-                   case BSC_setattrlist:
-                     bsd_syscalls[code].sc_name = "setattrlist";
-                     break;
-
-                   case BSC_getdirentriesattr:
-                     bsd_syscalls[code].sc_name = "getdirentriesattr";
-                     bsd_syscalls[code].sc_format = FMT_FD;
-                     break;
-
-                   case BSC_exchangedata:
-                     bsd_syscalls[code].sc_name = "exchangedata";
-                     break;
-                    
-                   case BSC_rename:
-                     bsd_syscalls[code].sc_name = "rename";
-                     break;
-
-                   case BSC_copyfile:
-                     bsd_syscalls[code].sc_name = "copyfile";
-                     break;
-
-                   case BSC_checkuseraccess:
-                     bsd_syscalls[code].sc_name = "checkuseraccess";
-                     break;
-
-                   case BSC_searchfs:
-                     bsd_syscalls[code].sc_name = "searchfs";
-                     break;
-
-                   case BSC_aio_fsync:
-                     bsd_syscalls[code].sc_name = "aio_fsync";
-                     bsd_syscalls[code].sc_format = FMT_AIO_FSYNC;
-                     break;
-
-                   case BSC_aio_return:
-                     bsd_syscalls[code].sc_name = "aio_return";
-                     bsd_syscalls[code].sc_format = FMT_AIO_RETURN;
-                     break;
-
-                   case BSC_aio_suspend:
-                   case BSC_aio_suspend_nocancel:
-                     bsd_syscalls[code].sc_name = "aio_suspend";
-                     bsd_syscalls[code].sc_format = FMT_AIO_SUSPEND;
-                     break;
-
-                   case BSC_aio_cancel:
-                     bsd_syscalls[code].sc_name = "aio_cancel";
-                     bsd_syscalls[code].sc_format = FMT_AIO_CANCEL;
-                     break;
-
-                   case BSC_aio_error:
-                     bsd_syscalls[code].sc_name = "aio_error";
-                     bsd_syscalls[code].sc_format = FMT_AIO;
-                     break;
-
-                   case BSC_aio_read:
-                     bsd_syscalls[code].sc_name = "aio_read";
-                     bsd_syscalls[code].sc_format = FMT_AIO;
-                     break;
-
-                   case BSC_aio_write:
-                     bsd_syscalls[code].sc_name = "aio_write";
-                     bsd_syscalls[code].sc_format = FMT_AIO;
-                     break;
-
-                   case BSC_lio_listio:
-                     bsd_syscalls[code].sc_name = "lio_listio";
-                     bsd_syscalls[code].sc_format = FMT_LIO_LISTIO;
-                     break;
-
-                   case BSC_msync:
-                   case BSC_msync_nocancel:
-                     bsd_syscalls[code].sc_name = "msync";
-                     bsd_syscalls[code].sc_format = FMT_MSYNC;
-                     break;
-
-                   case BSC_fcntl:
-                   case BSC_fcntl_nocancel:
-                     bsd_syscalls[code].sc_name = "fcntl";
-                     bsd_syscalls[code].sc_format = FMT_FCNTL;
-                     break;
-
-                   case BSC_ioctl:
-                     bsd_syscalls[code].sc_name = "ioctl";
-                     bsd_syscalls[code].sc_format = FMT_IOCTL;
-                     break;
-               }
-       }
+                       case 'R':
+                               RAW_flag = true;
+                               rv = ktrace_set_file(s, optarg);
+                               if (rv) {
+                                       fprintf(stderr, "ERROR: reading trace from '%s' failed (%s)\n", optarg, strerror(errno));
+                                       exit(1);
+                               }
+                               break;
 
-       for (i = 0; (type = filemgr_call_types[i]); i++) {
-               char * p;
+                       case 'S':
+                               start_time_ns = NSEC_PER_SEC * atof(optarg);
+                               break;
 
-               code = filemgr_index(type);
+                       case 'E':
+                               end_time_ns = NSEC_PER_SEC * atof(optarg);
+                               break;
 
-               if (code >= MAX_FILEMGR) {
-                       printf("FILEMGR call init (%x):  type exceeds table size\n", type);
-                       continue;
+                       default:
+                               exit_usage();
                }
-               switch (type) {
+       }
 
-                   case FILEMGR_PBGETCATALOGINFO:
-                     p = "GetCatalogInfo";
-                     break;
+       argc -= optind;
+       argv += optind;
 
-                   case FILEMGR_PBGETCATALOGINFOBULK:
-                     p = "GetCatalogInfoBulk";
-                     break;
+       if (time_limit_ns > 0 && RAW_flag) {
+               fprintf(stderr, "NOTE: time limit ignored when a raw file is specified\n");
+               time_limit_ns = 0;
+       }
 
-                   case FILEMGR_PBCREATEFILEUNICODE:
-                     p = "CreateFileUnicode";
-                     break;
+       if (!RAW_flag) {
+               if (geteuid() != 0) {
+                       fprintf(stderr, "'fs_usage' must be run as root...\n");
+                       exit(1);
+               }
 
-                   case FILEMGR_PBCREATEDIRECTORYUNICODE:
-                     p = "CreateDirectoryUnicode";
-                     break;
+               /*
+                * ktrace can't both *in*clude and *ex*clude pids, so: if we are
+                * already excluding pids, or if we are not explicitly including
+                * or excluding any pids, then exclude the defaults.
+                *
+                * if on the other hand we are explicitly including pids, we'll
+                * filter the defaults out naturally.
+                */
+               if (exclude_pids || argc == 0) {
+                       ktrace_exclude_process(s, "fs_usage");
+                       ktrace_exclude_process(s, "Terminal");
+                       ktrace_exclude_process(s, "telnetd");
+                       ktrace_exclude_process(s, "telnet");
+                       ktrace_exclude_process(s, "sshd");
+                       ktrace_exclude_process(s, "rlogind");
+                       ktrace_exclude_process(s, "tcsh");
+                       ktrace_exclude_process(s, "csh");
+                       ktrace_exclude_process(s, "sh");
+                       ktrace_exclude_process(s, "zsh");
+#if (TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR)
+                       ktrace_exclude_process(s, "dropbear");
+#endif /* (TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR) */
+               }
+       }
 
-                   case FILEMGR_PBCREATEFORK:
-                     p = "PBCreateFork";
-                     break;
+       /*
+        * If we're *in*cluding processes, also *in*clude the kernel_task, which
+        * issues trace points when disk I/Os complete.  But set a flag for us to
+        * avoid showing events attributed to the kernel_task.
+        *
+        * If the user actually wants to those events, we'll change that flag in
+        * the loop below.
+        */
+       if (argc > 0 && !exclude_pids) {
+               ktrace_filter_pid(s, 0);
+               want_kernel_task = false;
+       }
 
-                   case FILEMGR_PBDELETEFORK:
-                     p = "PBDeleteFork";
-                     break;
+       /*
+        * Process the list of specified pids, and in/exclude them as
+        * appropriate.
+        */
+       while (argc > 0) {
+               pid_t pid;
+               char *name;
+               char *endptr;
 
-                   case FILEMGR_PBITERATEFORK:
-                     p = "PBIterateFork";
-                     break;
+               name = argv[0];
+               pid = (pid_t)strtoul(name, &endptr, 10);
 
-                   case FILEMGR_PBOPENFORK:
-                     p = "PBOpenFork";
-                     break;
+               if (*name != '\0' && *endptr == '\0') {
+                       if (exclude_pids) {
+                               rv = ktrace_exclude_pid(s, pid);
+                       } else {
+                               if (pid == 0)
+                                       want_kernel_task = true;
+                               else
+                                       rv = ktrace_filter_pid(s, pid);
+                       }
+               } else {
+                       if (exclude_pids) {
+                               rv = ktrace_exclude_process(s, name);
+                       } else {
+                               if (!strcmp(name, "kernel_task"))
+                                       want_kernel_task = true;
+                               else
+                                       rv = ktrace_filter_process(s, name);
+                       }
+               }
 
-                   case FILEMGR_PBREADFORK:
-                     p = "PBReadFork";
-                     break;
+               if (rv == EINVAL) {
+                       fprintf(stderr, "ERROR: cannot both include and exclude simultaneously\n");
+                       exit(1);
+               } else {
+                       os_assert(!rv);
+               }
 
-                   case FILEMGR_PBWRITEFORK:
-                     p = "PBWriteFork";
-                     break;
+               argc--;
+               argv++;
+       }
 
-                   case FILEMGR_PBALLOCATEFORK:
-                     p = "PBAllocateFork";
-                     break;
+       /* provides SIGINT, SIGHUP, SIGPIPE, SIGTERM handlers */
+       ktrace_set_signal_handler(s);
 
-                   case FILEMGR_PBDELETEOBJECT:
-                     p = "PBDeleteObject";
-                     break;
+       ktrace_set_completion_handler(s, ^{
+               exit(0);
+       });
 
-                   case FILEMGR_PBEXCHANGEOBJECT:
-                     p = "PBExchangeObject";
-                     break;
+       signal(SIGWINCH, SIG_IGN);
+       sigwinch_source = dispatch_source_create(DISPATCH_SOURCE_TYPE_SIGNAL, SIGWINCH, 0, dispatch_get_main_queue());
+       dispatch_source_set_event_handler(sigwinch_source, ^{
+               if (!wideflag)
+                       get_screenwidth();
+       });
+       dispatch_activate(sigwinch_source);
 
-                   case FILEMGR_PBGETFORKCBINFO:
-                     p = "PBGetForkCBInfo";
-                     break;
+       init_shared_cache_mapping();
 
-                   case FILEMGR_PBGETVOLUMEINFO:
-                     p = "PBGetVolumeInfo";
-                     break;
-               
-                   case FILEMGR_PBMAKEFSREF:
-                     p = "PBMakeFSRef";
-                     break;
+       cache_disk_names();
 
-                   case FILEMGR_PBMAKEFSREFUNICODE:
-                     p = "PBMakeFSRefUnicode";
-                     break;
+       setup_ktrace_callbacks();
 
-                   case FILEMGR_PBMOVEOBJECT:
-                     p = "PBMoveObject";
-                     break;
+       ktrace_set_dropped_events_handler(s, ^{
+               fprintf(stderr, "fs_usage: buffer overrun, events generated too quickly\n");
 
-                   case FILEMGR_PBOPENITERATOR:
-                     p = "PBOpenIterator";
-                     break;
+               /* clear any state that is now potentially invalid */
 
-                   case FILEMGR_PBRENAMEUNICODE:
-                     p = "PBRenameUnicode";
-                     break;
+               event_delete_all();
+               fd_clear_all();
+               meta_delete_all();
+       });
 
-                   case FILEMGR_PBSETCATALOGINFO:
-                     p = "SetCatalogInfo";
-                     break;
+       ktrace_set_default_event_names_enabled(KTRACE_FEATURE_DISABLED);
+       ktrace_set_execnames_enabled(s, KTRACE_FEATURE_LAZY);
+       ktrace_set_vnode_paths_enabled(s, true);
+       /* no need to symbolicate addresses */
+       ktrace_set_uuid_map_enabled(s, KTRACE_FEATURE_DISABLED);
 
-                   case FILEMGR_PBSETVOLUMEINFO:
-                     p = "SetVolumeInfo";
-                     break;
+       rv = ktrace_start(s, dispatch_get_main_queue());
 
-                   case FILEMGR_FSREFMAKEPATH:
-                     p = "FSRefMakePath";
-                     break;
+       if (rv) {
+               perror("ktrace_start");
+               exit(1);
+       }
 
-                   case FILEMGR_FSPATHMAKEREF:
-                     p = "FSPathMakeRef";
-                     break;
+       if (time_limit_ns > 0) {
+               dispatch_after(dispatch_time(DISPATCH_TIME_NOW, time_limit_ns),
+                               dispatch_get_global_queue(QOS_CLASS_USER_INITIATED, 0),
+               ^{
+                       ktrace_end(s, 0);
+               });
+       }
 
-                   case FILEMGR_PBGETCATINFO:
-                     p = "GetCatInfo";
-                     break;
+       dispatch_main();
 
-                   case FILEMGR_PBGETCATINFOLITE:
-                     p = "GetCatInfoLite";
-                     break;
+       return 0;
+}
 
-                   case FILEMGR_PBHGETFINFO:
-                     p = "PBHGetFInfo";
-                     break;
+void
+setup_ktrace_callbacks(void)
+{
+       ktrace_events_subclass(s, DBG_MACH, DBG_MACH_EXCP_SC, ^(ktrace_event_t event) {
+               int type;
 
-                   case FILEMGR_PBXGETVOLINFO:
-                     p = "PBXGetVolInfo";
-                     break;
+               type = event->debugid & KDBG_EVENTID_MASK;
 
-                   case FILEMGR_PBHCREATE:
-                     p = "PBHCreate";
-                     break;
+               if (type == MSC_map_fd) {
+                       if (event->debugid & DBG_FUNC_START) {
+                               event_enter(type, event);
+                       } else {
+                               event_exit("map_fd", type, event, FMT_FD);
+                       }
+               }
+       });
 
-                   case FILEMGR_PBHOPENDF:
-                     p = "PBHOpenDF";
-                     break;
+       ktrace_events_subclass(s, DBG_MACH, DBG_MACH_VM, ^(ktrace_event_t event) {
+               th_info_t ti;
+               unsigned int type;
 
-                   case FILEMGR_PBHOPENRF:
-                     p = "PBHOpenRF";
-                     break;
+               type = event->debugid & KDBG_EVENTID_MASK;
 
-                   case FILEMGR_PBHGETDIRACCESS:
-                     p = "PBHGetDirAccess";
-                     break;
+               if (type != MACH_pageout && type != MACH_vmfault)
+                       return;
 
-                   case FILEMGR_PBHSETDIRACCESS:
-                     p = "PBHSetDirAccess";
-                     break;
+               if (event->debugid & DBG_FUNC_START) {
+                       event_enter(type, event);
+               } else {
+                       switch (type) {
+                               case MACH_pageout:
+                                       if (event->arg2)
+                                               event_exit("PAGE_OUT_ANON", type, event, FMT_PGOUT);
+                                       else
+                                               event_exit("PAGE_OUT_FILE", type, event, FMT_PGOUT);
+
+                                       break;
+
+                               case MACH_vmfault:
+                                       if (event->arg4 == DBG_PAGEIN_FAULT)
+                                               event_exit("PAGE_IN", type, event, FMT_PGIN);
+                                       else if (event->arg4 == DBG_PAGEINV_FAULT)
+                                               event_exit("PAGE_IN_FILE", type, event, FMT_PGIN);
+                                       else if (event->arg4 == DBG_PAGEIND_FAULT)
+                                               event_exit("PAGE_IN_ANON", type, event, FMT_PGIN);
+                                       else if (event->arg4 == DBG_CACHE_HIT_FAULT)
+                                               event_exit("CACHE_HIT", type, event, FMT_CACHEHIT);
+                                       else if ((ti = event_find(event->threadid, type)))
+                                               event_delete(ti);
+
+                                       break;
+
+                               default:
+                                       abort();
+                       }
+               }
+       });
 
-                   case FILEMGR_PBHMAPID:
-                     p = "PBHMapID";
-                     break;
+       if (include_waited_flag || RAW_flag) {
+               ktrace_events_subclass(s, DBG_MACH, DBG_MACH_SCHED, ^(ktrace_event_t event) {
+                       int type;
 
-                   case FILEMGR_PBHMAPNAME:
-                     p = "PBHMapName";
-                     break;
+                       type = event->debugid & KDBG_EVENTID_MASK;
 
-                   case FILEMGR_PBCLOSE:
-                     p = "PBClose";
-                     break;
+                       switch (type) {
+                               case MACH_idle:
+                               case MACH_sched:
+                               case MACH_stkhandoff:
+                                       event_mark_thread_waited(event->threadid);
+                       }
+               });
+       }
 
-                   case FILEMGR_PBFLUSHFILE:
-                     p = "PBFlushFile";
-                     break;
+       ktrace_events_subclass(s, DBG_FSYSTEM, DBG_FSRW, ^(ktrace_event_t event) {
+               th_info_t ti;
+               int type;
 
-                   case FILEMGR_PBGETEOF:
-                     p = "PBGetEOF";
-                     break;
+               type = event->debugid & KDBG_EVENTID_MASK;
 
-                   case FILEMGR_PBSETEOF:
-                     p = "PBSetEOF";
-                     break;
+               switch (type) {
+                       case HFS_modify_block_end:
+                               /*
+                                * the expected path here is as follows:
+                                * enter syscall
+                                * look up a path, which gets stored in ti->vnode / ti->pathname
+                                * modify a metadata block -- we assume the modification has something to do with the path that was looked up
+                                * leave syscall
+                                * ...
+                                * later, someone writes that metadata block; the last path associated with it is attributed
+                                */
+                               if ((ti = event_find(event->threadid, 0))) {
+                                       if (ti->newest_pathname)
+                                               meta_add_name(event->arg2, ti->newest_pathname);
+                               }
 
-                   case FILEMGR_PBGETFPOS:
-                     p = "PBGetFPos";
-                     break;
+                               break;
 
-                   case FILEMGR_PBREAD:
-                     p = "PBRead";
-                     break;
+                       case VFS_LOOKUP:
+                               if (event->debugid & DBG_FUNC_START) {
+                                       if ((ti = event_find(event->threadid, 0)) && !ti->vnodeid) {
+                                               ti->vnodeid = event->arg1;
+                                       }
+                               }
 
-                   case FILEMGR_PBWRITE:
-                     p = "PBWrite";
-                     break;
+                               /* it can be both start and end */
 
-                   case FILEMGR_PBGETFCBINFO:
-                     p = "PBGetFCBInfo";
-                     break;
+                               if (event->debugid & DBG_FUNC_END) {
+                                       if ((ti = event_find(event->threadid, 0)) && ti->vnodeid) {
+                                               const char *pathname;
 
-                   case FILEMGR_PBSETFINFO:
-                     p = "PBSetFInfo";
-                     break;
+                                               pathname = ktrace_get_path_for_vp(s, ti->vnodeid);
 
-                   case FILEMGR_PBALLOCATE:
-                     p = "PBAllocate";
-                     break;
+                                               ti->vnodeid = 0;
 
-                   case FILEMGR_PBALLOCCONTIG:
-                     p = "PBAllocContig";
-                     break;
+                                               if (pathname) {
+                                                       if (ti->pathname[0] == '\0') {
+                                                               strncpy(ti->pathname, pathname, MAXPATHLEN);
+                                                               ti->newest_pathname = ti->pathname;
+                                                       } else if (ti->pathname2[0] == '\0') {
+                                                               strncpy(ti->pathname2, pathname, MAXPATHLEN);
+                                                               ti->newest_pathname = ti->pathname2;
+                                                       }
+                                               }
+                                       }
+                               }
 
-                   case FILEMGR_PBSETFPOS:
-                     p = "PBSetFPos";
-                     break;
+                               break;
+               }
 
-                   case FILEMGR_PBSETCATINFO:
-                     p = "PBSetCatInfo";
-                     break;
+               if (type != Throttled && type != HFS_update)
+                       return;
 
-                   case FILEMGR_PBGETVOLPARMS:
-                     p = "PBGetVolParms";
-                     break;
+               if (event->debugid & DBG_FUNC_START) {
+                       event_enter(type, event);
+               } else {
+                       switch (type) {
+                               case Throttled:
+                                       event_exit("  THROTTLED", type, event, FMT_NOTHING);
+                                       break;
 
-                   case FILEMGR_PBSETVINFO:
-                     p = "PBSetVInfo";
-                     break;
+                               case HFS_update:
+                                       event_exit("  HFS_update", type, event, FMT_HFS_update);
+                                       break;
 
-                   case FILEMGR_PBMAKEFSSPEC:
-                     p = "PBMakeFSSpec";
-                     break;
+                               default:
+                                       abort();
+                       }
+               }
+       });
 
-                   case FILEMGR_PBHGETVINFO:
-                     p = "PBHGetVInfo";
-                     break;
+       ktrace_events_subclass(s, DBG_FSYSTEM, DBG_DKRW, ^(ktrace_event_t event) {
+               struct diskio *dio;
+               unsigned int type;
 
-                   case FILEMGR_PBCREATEFILEIDREF:
-                     p = "PBCreateFileIDRef";
-                     break;
+               type = event->debugid & KDBG_EVENTID_MASK;
 
-                   case FILEMGR_PBDELETEFILEIDREF:
-                     p = "PBDeleteFileIDRef";
-                     break;
+               if ((type & P_DISKIO_MASK) == P_DISKIO) {
+                       diskio_start(type, event->arg1, event->arg2, event->arg3, event->arg4, event);
+               } else if ((type & P_DISKIO_MASK) == P_DISKIO_DONE) {
+                       if ((dio = diskio_complete(event->arg1, event->arg4, event->arg3, event->threadid, event->timestamp, event->walltime))) {
+                               dio->vnodeid = event->arg2;
+                               diskio_print(dio);
+                               diskio_free(dio);
+                       }
+               }
+       });
 
-                   case FILEMGR_PBRESOLVEFILEIDREF:
-                     p = "PBResolveFileIDRef";
-                     break;
+       ktrace_events_subclass(s, DBG_FSYSTEM, DBG_IOCTL, ^(ktrace_event_t event) {
+               th_info_t ti;
+               int type;
+               pid_t pid;
 
-                   case FILEMGR_PBFLUSHVOL:
-                     p = "PBFlushVol";
-                     break;
+               type = event->debugid & KDBG_EVENTID_MASK;
 
-                   case FILEMGR_PBHRENAME:
-                     p = "PBHRename";
-                     break;
+               switch (type) {
+                       case SPEC_unmap_info:
+                               pid = ktrace_get_pid_for_thread(s, event->threadid);
 
-                   case FILEMGR_PBCATMOVE:
-                     p = "PBCatMove";
-                     break;
+                               if (check_filter_mode(pid, NULL, SPEC_unmap_info, 0, 0, "SPEC_unmap_info"))
+                                       format_print(NULL, "  TrimExtent", event, type, FMT_UNMAP_INFO, event->timestamp, event->timestamp, 0, "", NULL);
 
-                   case FILEMGR_PBEXCHANGEFILES:
-                     p = "PBExchangeFiles";
-                     break;
+                               break;
 
-                   case FILEMGR_PBHDELETE:
-                     p = "PBHDelete";
-                     break;
+                       case SPEC_ioctl:
+                               if (event->debugid & DBG_FUNC_START) {
+                                       event_enter(type, event);
+                               } else {
+                                       if (event->arg2 == DKIOCSYNCHRONIZECACHE)
+                                               event_exit("IOCTL", type, event, FMT_IOCTL_SYNCCACHE);
+                                       else if (event->arg2 == DKIOCUNMAP)
+                                               event_exit("IOCTL", type, event, FMT_IOCTL_UNMAP);
+                                       else if (event->arg2 == DKIOCSYNCHRONIZE && (event->debugid & DBG_FUNC_ALL) == DBG_FUNC_NONE)
+                                               event_exit("IOCTL", type, event, FMT_IOCTL_SYNC);
+                                       else if ((ti = event_find(event->threadid, type)))
+                                               event_delete(ti);
+                               }
 
-                   case FILEMGR_PBDIRCREATE:
-                     p = "PBDirCreate";
-                     break;
+                               break;
+               }
+       });
+
+       if (BC_flag || RAW_flag) {
+               ktrace_events_subclass(s, DBG_FSYSTEM, DBG_BOOTCACHE, ^(ktrace_event_t event) {
+                       struct diskio *dio;
+                       unsigned int type;
+
+                       type = event->debugid & KDBG_EVENTID_MASK;
+
+                       switch (type) {
+                               case BC_IO_HIT:
+                               case BC_IO_HIT_STALLED:
+                               case BC_IO_MISS:
+                               case BC_IO_MISS_CUT_THROUGH:
+                               case BC_PLAYBACK_IO:
+                                       if ((dio = diskio_find(event->arg1)) != NULL)
+                                               dio->bc_info = type;
+                       }
+               });
+       }
 
-                   case FILEMGR_PBCATSEARCH:
-                     p = "PBCatSearch";
-                     break;
+       void (^bsd_sc_proc_cb)(ktrace_event_t event) = ^(ktrace_event_t event) {
+               int type, index;
+               pid_t pid;
 
-                   case FILEMGR_PBHSETFLOCK:
-                     p = "PBHSetFlock";
-                     break;
+               type = event->debugid & KDBG_EVENTID_MASK;
 
-                   case FILEMGR_PBHRSTFLOCK:
-                     p = "PBHRstFLock";
-                     break;
+               switch (type) {
+                       case BSC_exit: /* see below */
+                               return;
 
-                   case FILEMGR_PBLOCKRANGE:
-                     p = "PBLockRange";
-                     break;
+                       case proc_exit:
+                               event->arg1 = event->arg2 >> 8;
+                               type = BSC_exit;
 
-                   case FILEMGR_PBUNLOCKRANGE:
-                     p = "PBUnlockRange";
-                     break;
+                               pid = ktrace_get_pid_for_thread(s, event->threadid);
+                               fd_clear_pid(pid);
 
-                   default:
-                     p = NULL;
-                     break;
-               }
-               filemgr_calls[code].fm_name = p;
-       }
-}
+                               break;
 
+                       case BSC_mmap:
+                               if (event->arg4 & MAP_ANON)
+                                       return;
 
+                               break;
+               }
 
-int
-main(argc, argv)
-       int     argc;
-       char    *argv[];
-{
-       char    *myname = "fs_usage";
-       int     i;
-       char    ch;
+               if ((index = BSC_INDEX(type)) >= MAX_BSD_SYSCALL)
+                       return;
 
-       if (0 != reexec_to_match_kernel()) {
-               fprintf(stderr, "Could not re-execute: %d\n", errno);
-               exit(1);
-       }
-       get_screenwidth();
+               if (!bsd_syscalls[index].sc_name)
+                       return;
 
-       /*
-        * get our name
-        */
-       if (argc > 0) {
-               if ((myname = rindex(argv[0], '/')) == 0)
-                       myname = argv[0];
-               else
-                       myname++;
-       }
-       
-       while ((ch = getopt(argc, argv, "ewf:R:S:E:")) != EOF) {
-
-               switch(ch) {
-
-                case 'e':
-                   exclude_pids = 1;
-                   exclude_default_pids = 0;
-                   break;
-
-                case 'w':
-                   wideflag = 1;
-                   if ((uint)columns < MAX_WIDE_MODE_COLS)
-                           columns = MAX_WIDE_MODE_COLS;
-                   break;
-
-              case 'f':
-                  if (!strcmp(optarg, "network"))
-                          filter_mode |= NETWORK_FILTER;
-                  else if (!strcmp(optarg, "filesys"))
-                          filter_mode |= FILESYS_FILTER;
-                  else if (!strcmp(optarg, "cachehit"))
-                          filter_mode &= ~CACHEHIT_FILTER;   /* turns on CACHE_HIT */
-                  else if (!strcmp(optarg, "exec"))
-                          filter_mode |= EXEC_FILTER;
-                  else if (!strcmp(optarg, "pathname"))
-                          filter_mode |= PATHNAME_FILTER;
-                  break;
-
-              case 'R':
-                  RAW_flag = 1;
-                  RAW_file = optarg;
-                  break;
-                      
-              case 'S':
-                  start_time = atof(optarg);
-                  break;
-
-              case 'E':
-                  end_time = atof(optarg);
-                  break;
-
-              default:
-                exit_usage(myname);             
-              }
-       }
-       if (!RAW_flag) {
-               if ( geteuid() != 0 ) {
-                       fprintf(stderr, "'fs_usage' must be run as root...\n");
-                       exit(1);
+               if (event->debugid & DBG_FUNC_START) {
+                       event_enter(type, event);
+               } else {
+                       event_exit(bsd_syscalls[index].sc_name, type, event, bsd_syscalls[index].sc_format);
                }
-       }
-        argc -= optind;
-        argv += optind;
+       };
+
+       ktrace_events_subclass(s, DBG_BSD, DBG_BSD_EXCP_SC, bsd_sc_proc_cb);
+       ktrace_events_subclass(s, DBG_BSD, DBG_BSD_PROC, bsd_sc_proc_cb);
+
+       ktrace_events_range(s, KDBG_EVENTID(DBG_BSD, DBG_BSD_SC_EXTENDED_INFO, 0), KDBG_EVENTID(DBG_BSD, DBG_BSD_SC_EXTENDED_INFO2 + 1, 0), ^(ktrace_event_t event) {
+               extend_syscall(event->threadid, event->debugid & KDBG_EVENTID_MASK, event);
+       });
+
+       ktrace_events_subclass(s, DBG_CORESTORAGE, DBG_CS_IO, ^(ktrace_event_t event) {
+               // the usual DBG_FUNC_START/END does not work for i/o since it will
+               // return on a different thread, this code uses the P_CS_IO_Done (0x4) bit
+               // instead. the trace command doesn't know how handle either method
+               // (unmatched start/end or 0x4) but works a little better this way.
+
+               struct diskio *dio;
+               int cs_type = event->debugid & P_CS_Type_Mask;   // strip out the done bit
+               bool start = (event->debugid & P_CS_IO_Done) != P_CS_IO_Done;
+
+               switch (cs_type) {
+                       case P_CS_ReadChunk:
+                       case P_CS_WriteChunk:
+                       case P_CS_MetaRead:
+                       case P_CS_MetaWrite:
+                               if (start) {
+                                       diskio_start(cs_type, event->arg2, event->arg1, event->arg3, event->arg4, event);
+                               } else {
+                                       if ((dio = diskio_complete(event->arg2, event->arg4, event->arg3, event->threadid, event->timestamp, event->walltime))) {
+                                               diskio_print(dio);
+                                               diskio_free(dio);
+                                       }
+                               }
 
-       /*
-        * when excluding, fs_usage should be the first in line for pids[]
-        * 
-        * the !exclude_pids && argc == 0 catches the exclude_default_pids
-        * case below where exclude_pids is later set and the fs_usage PID
-        * needs to make it into pids[] 
-        */
-       if (exclude_pids || (!exclude_pids && argc == 0)) {
-               if (num_of_pids < (MAX_PIDS - 1))
-                       pids[num_of_pids++] = getpid();
-       }
+                               break;
+                       case P_CS_TransformRead:
+                       case P_CS_TransformWrite:
+                       case P_CS_MigrationRead:
+                       case P_CS_MigrationWrite:
+                               if (start) {
+                                       diskio_start(cs_type, event->arg2, CS_DEV, event->arg3, event->arg4, event);
+                               } else {
+                                       if ((dio = diskio_complete(event->arg2, event->arg4, event->arg3, event->threadid, event->timestamp, event->walltime))) {
+                                               diskio_print(dio);
+                                               diskio_free(dio);
+                                       }
+                               }
 
-       /*
-        * If we process any list of pids/cmds, then turn off the defaults
-        */
-       if (argc > 0)
-               exclude_default_pids = 0;
+                               break;
+               }
+       });
 
-       while (argc > 0 && num_of_pids < (MAX_PIDS - 1)) {
-               select_pid_mode++;
-               argtopid(argv[0]);
-               argc--;
-               argv++;
-       }
-       /*
-        * Exclude a set of default pids
-        */
-       if (exclude_default_pids) {
-               argtopid("Terminal");
-               argtopid("telnetd");
-               argtopid("telnet");
-               argtopid("sshd");
-               argtopid("rlogind");
-               argtopid("tcsh");
-               argtopid("csh");
-               argtopid("sh");
-               exclude_pids = 1;
-       }
-#if 0
-       for (i = 0; i < num_of_pids; i++) {
-               if (exclude_pids)
-                       fprintf(stderr, "exclude pid %d\n", pids[i]);
-               else
-                       fprintf(stderr, "pid %d\n", pids[i]);
-       }
-#endif
-       if (!RAW_flag) {
-               struct sigaction osa;
-               int     num_cpus;
-               size_t  len;
+       ktrace_events_subclass(s, DBG_CORESTORAGE, 1 /* DBG_CS_SYNC */, ^(ktrace_event_t event) {
+               int cs_type = event->debugid & P_CS_Type_Mask; // strip out the done bit
+               bool start = (event->debugid & P_CS_IO_Done) != P_CS_IO_Done;
 
-               /* set up signal handlers */
-               signal(SIGINT, leave);
-               signal(SIGQUIT, leave);
+               if (cs_type == P_CS_SYNC_DISK) {
+                       if (start) {
+                               event_enter(cs_type, event);
+                       } else {
+                               event_exit("  SyncCacheCS", cs_type, event, FMT_SYNC_DISK_CS);
+                       }
+               }
+       });
+}
 
-               sigaction(SIGHUP, (struct sigaction *)NULL, &osa);
+static void
+extend_syscall_rw(th_info_t ti, ktrace_event_t event)
+{
+       ti->arg1 = event->arg1; /* the fd */
+       ti->arg2 = event->arg2; /* nbytes */
+       ti->arg3 = event->arg3; /* top half offset */
+       ti->arg4 = event->arg4; /* bottom half offset */
+}
 
-               if (osa.sa_handler == SIG_DFL)
-                       signal(SIGHUP, leave);
-               signal(SIGTERM, leave);
-               /*
-                * grab the number of cpus
-                */
-               mib[0] = CTL_HW;
-               mib[1] = HW_NCPU;
-               mib[2] = 0;
-               len = sizeof(num_cpus);
+/*
+ * Handle system call extended trace data.
+ * pread and pwrite:
+ *     Wipe out the kd args that were collected upon syscall_entry
+ *     because it is the extended info that we really want, and it
+ *     is all we really need.
+ */
+void
+extend_syscall(uint64_t thread, int type, ktrace_event_t event)
+{
+       th_info_t ti;
 
-               sysctl(mib, 2, &num_cpus, &len, NULL, 0);
-               num_events = EVENT_BASE * num_cpus;
-       }
-       signal(SIGWINCH, sigwinch);
+       switch (type) {
+               case BSC_mmap_extended:
+                       if ((ti = event_find(thread, BSC_mmap)) == NULL) {
+                               return;
+                       }
 
-       if ((my_buffer = malloc(num_events * sizeof(kd_buf))) == (char *)0)
-               quit("can't allocate memory for tracing info\n");
+                       ti->arg8   = ti->arg3;  /* save protection */
+                       ti->arg1   = event->arg1;  /* the fd */
+                       ti->arg3   = event->arg2;  /* bottom half address */
+                       ti->arg5   = event->arg3;  /* bottom half size */
+                       break;
 
-       if (ReadSharedCacheMap("/var/db/dyld/dyld_shared_cache_i386.map", &framework32, "/var/db/dyld/dyld_shared_cache_i386")) {
-               ReadSharedCacheMap("/var/db/dyld/dyld_shared_cache_x86_64.map", &framework64, "/var/db/dyld/dyld_shared_cache_x86_64");
-       } else {
-               ReadSharedCacheMap("/var/db/dyld/dyld_shared_cache_ppc.map", &framework32, "/var/db/dyld/dyld_shared_cache_ppc");
-               ReadSharedCacheMap("/var/db/dyld/dyld_shared_cache_ppc64.map", &framework64, "/var/db/dyld/dyld_shared_cache_ppc64");
-       }
-       SortFrameworkAddresses();
+               case BSC_mmap_extended2:
+                       if ((ti = event_find(thread, BSC_mmap)) == NULL)
+                               return;
 
-        cache_disk_names();
+                       ti->arg2   = event->arg1;  /* top half address */
+                       ti->arg4   = event->arg2;  /* top half size */
+                       ti->arg6   = event->arg3;  /* top half file offset */
+                       ti->arg7   = event->arg4;  /* bottom half file offset */
+                       break;
 
-       if (!RAW_flag) {
+               case BSC_msync_extended:
+                       if ((ti = event_find(thread, BSC_msync)) == NULL) {
+                               if ((ti = event_find(thread, BSC_msync_nocancel)) == NULL) {
+                                       return;
+                               }
+                       }
 
-               set_remove();
-               set_numbufs(num_events);
-               set_init();
+                       ti->arg4   = event->arg1;  /* top half address */
+                       ti->arg5   = event->arg2;  /* top half size */
+                       break;
 
-               if (exclude_pids == 0) {
-                       for (i = 0; i < num_of_pids; i++)
-                               set_pidcheck(pids[i], 1);
-               } else {
-                       for (i = 0; i < num_of_pids; i++)
-                               set_pidexclude(pids[i], 1);
-               }
-               if (select_pid_mode && !one_good_pid) {
-                       /* 
-                        *  An attempt to restrict output to a given
-                        *  pid or command has failed. Exit gracefully
-                        */
-                       set_remove();
-                       exit_usage(myname);
-               }
-               set_enable(1);
+               case BSC_pread_extended:
+                       if ((ti = event_find(thread, BSC_pread)) == NULL) {
+                               if ((ti = event_find(thread, BSC_pread_nocancel)) == NULL) {
+                                       return;
+                               }
+                       }
 
-               init_arguments_buffer();
-       }
-       getdivisor();
+                       extend_syscall_rw(ti, event);
+                       break;
 
-       init_tables();
+               case BSC_pwrite_extended:
+                       if ((ti = event_find(thread, BSC_pwrite)) == NULL) {
+                               if ((ti = event_find(thread, BSC_pwrite_nocancel)) == NULL) {
+                                       return;
+                               }
+                       }
 
-       /*
-        * main loop
-        */
-       while (1) {
-               if (!RAW_flag)          
-                       usleep(1000 * usleep_ms);
+                       extend_syscall_rw(ti, event);
+                       break;
 
-               sample_sc();
+               case BSC_guarded_pwrite_extended:
+                       if ((ti = event_find(thread, BSC_guarded_pwrite_np)) == NULL) {
+                               return;
+                       }
 
-               last_time = time((long *)0);
+                       extend_syscall_rw(ti, event);
+                       break;
        }
 }
 
+#pragma mark printing routines
 
-void
-find_proc_names()
+static void
+get_mode_nibble(char *buf, uint64_t smode, uint64_t special, char x_on, char x_off)
 {
-        size_t                 bufSize = 0;
-       struct kinfo_proc       *kp;
-
-       mib[0] = CTL_KERN;
-       mib[1] = KERN_PROC;
-       mib[2] = KERN_PROC_ALL;
-       mib[3] = 0;
-
-       if (sysctl(mib, 4, NULL, &bufSize, NULL, 0) < 0)
-               quit("trace facility failure, KERN_PROC_ALL\n");
+       if (smode & 04)
+               buf[0] = 'r';
 
-       if ((kp = (struct kinfo_proc *)malloc(bufSize)) == (struct kinfo_proc *)0)
-               quit("can't allocate memory for proc buffer\n");
-       
-       if (sysctl(mib, 4, kp, &bufSize, NULL, 0) < 0)
-               quit("trace facility failure, KERN_PROC_ALL\n");
+       if (smode & 02)
+               buf[1] = 'w';
 
-        kp_nentries = bufSize/ sizeof(struct kinfo_proc);
-       kp_buffer = kp;
-}
-
-
-void
-set_enable(int val) 
-{
-       mib[0] = CTL_KERN;
-       mib[1] = KERN_KDEBUG;
-       mib[2] = KERN_KDENABLE;         /* protocol */
-       mib[3] = val;
-       mib[4] = 0;
-       mib[5] = 0;                     /* no flags */
-
-       if (sysctl(mib, 4, NULL, &needed, NULL, 0) < 0)
-               quit("trace facility failure, KERN_KDENABLE\n");
-
-       if (val)
-               trace_enabled = 1;
-       else
-               trace_enabled = 0;
-}
-
-void
-set_numbufs(int nbufs) 
-{
-       mib[0] = CTL_KERN;
-       mib[1] = KERN_KDEBUG;
-       mib[2] = KERN_KDSETBUF;
-       mib[3] = nbufs;
-       mib[4] = 0;
-       mib[5] = 0;                     /* no flags */
-
-       if (sysctl(mib, 4, NULL, &needed, NULL, 0) < 0)
-               quit("trace facility failure, KERN_KDSETBUF\n");
-
-       mib[0] = CTL_KERN;
-       mib[1] = KERN_KDEBUG;
-       mib[2] = KERN_KDSETUP;          
-       mib[3] = 0;
-       mib[4] = 0;
-       mib[5] = 0;                     /* no flags */
-
-       if (sysctl(mib, 3, NULL, &needed, NULL, 0) < 0)
-               quit("trace facility failure, KERN_KDSETUP\n");
+       if (smode & 01) {
+               if (special)
+                       buf[2] = x_on;
+               else
+                       buf[2] = 'x';
+       } else {
+               if (special)
+                       buf[2] = x_off;
+       }
 }
 
-void
-set_pidcheck(int pid, int on_off) 
+static void
+get_mode_string(uint64_t mode, char *buf)
 {
-        kd_regtype kr;
-
-       kr.type = KDBG_TYPENONE;
-       kr.value1 = pid;
-       kr.value2 = on_off;
-       needed = sizeof(kd_regtype);
-       mib[0] = CTL_KERN;
-       mib[1] = KERN_KDEBUG;
-       mib[2] = KERN_KDPIDTR;
-       mib[3] = 0;
-       mib[4] = 0;
-       mib[5] = 0;
-
-       if (sysctl(mib, 3, &kr, &needed, NULL, 0) < 0) {
-               if (on_off == 1)
-                       fprintf(stderr, "pid %d does not exist\n", pid);
-       } else
-               one_good_pid++;
-}
+       memset(buf, '-', 9);
+       buf[9] = '\0';
 
-/* 
- * on_off == 0 turns off pid exclusion
- * on_off == 1 turns on pid exclusion
- */
-void
-set_pidexclude(int pid, int on_off) 
-{
-        kd_regtype kr;
-
-       one_good_pid++;
-
-       kr.type = KDBG_TYPENONE;
-       kr.value1 = pid;
-       kr.value2 = on_off;
-       needed = sizeof(kd_regtype);
-       mib[0] = CTL_KERN;
-       mib[1] = KERN_KDEBUG;
-       mib[2] = KERN_KDPIDEX;
-       mib[3] = 0;
-       mib[4] = 0;
-       mib[5] = 0;
-
-       if (sysctl(mib, 3, &kr, &needed, NULL, 0) < 0) {
-               if (on_off == 1)
-                         fprintf(stderr, "pid %d does not exist\n", pid);
-       }
+       get_mode_nibble(&buf[6], mode, (mode & 01000), 't', 'T');
+       get_mode_nibble(&buf[3], (mode>>3), (mode & 02000), 's', 'S');
+       get_mode_nibble(&buf[0], (mode>>6), (mode & 04000), 's', 'S');
 }
 
-void
-get_bufinfo(kbufinfo_t *val)
+static int
+clip_64bit(char *s, uint64_t value)
 {
-        needed = sizeof (*val);
-       mib[0] = CTL_KERN;
-       mib[1] = KERN_KDEBUG;
-       mib[2] = KERN_KDGETBUF;         
-       mib[3] = 0;
-       mib[4] = 0;
-       mib[5] = 0;             /* no flags */
+       int clen = 0;
 
-       if (sysctl(mib, 3, val, &needed, 0, 0) < 0)
-               quit("trace facility failure, KERN_KDGETBUF\n");  
+       if ( (value & 0xff00000000000000LL) )
+               clen = printf("%s0x%16.16qx", s, value);
+       else if ( (value & 0x00ff000000000000LL) )
+               clen = printf("%s0x%14.14qx  ", s, value);
+       else if ( (value & 0x0000ff0000000000LL) )
+               clen = printf("%s0x%12.12qx    ", s, value);
+       else if ( (value & 0x000000ff00000000LL) )
+               clen = printf("%s0x%10.10qx      ", s, value);
+       else
+               clen = printf("%s0x%8.8qx        ", s, value);
 
+       return clen;
 }
 
-void
-set_remove() 
-{
-        errno = 0;
-
-       mib[0] = CTL_KERN;
-       mib[1] = KERN_KDEBUG;
-       mib[2] = KERN_KDREMOVE;         /* protocol */
-       mib[3] = 0;
-       mib[4] = 0;
-       mib[5] = 0;             /* no flags */
+/*
+ * ret = 1 means print the entry
+ * ret = 0 means don't print the entry
+ */
 
-       if (sysctl(mib, 3, NULL, &needed, NULL, 0) < 0) {
-               set_remove_flag = 0;
+/*
+ * meaning of filter flags:
+ * cachehit    turn on display of CACHE_HIT events (which are filtered out by default)
+ *
+ * exec                show exec/posix_spawn
+ * pathname    show events with a pathname and close()
+ * diskio      show disk I/Os
+ * filesys     show filesystem events
+ * network     show network events
+ *
+ * filters may be combined; default is all filters on (except cachehit)
+ */
+bool
+check_filter_mode(pid_t pid, th_info_t ti, uint64_t type, int error, int retval, char *sc_name)
+{
+       bool ret = false;
+       int network_fd_isset = 0;
+       uint64_t fd;
 
-               if (errno == EBUSY)
-                       quit("the trace facility is currently in use...\n          fs_usage, sc_usage, and latency use this feature.\n\n");
-               else
-                       quit("trace facility failure, KERN_KDREMOVE\n");
+       /* cachehit is special -- it's not on by default */
+       if (sc_name[0] == 'C' && !strcmp(sc_name, "CACHE_HIT")) {
+               return show_cachehits;
        }
-}
 
-void
-set_init() 
-{       kd_regtype kr;
-
-       kr.type = KDBG_RANGETYPE;
-       kr.value1 = 0;
-       kr.value2 = -1;
-       needed = sizeof(kd_regtype);
-
-       mib[0] = CTL_KERN;
-       mib[1] = KERN_KDEBUG;
-       mib[2] = KERN_KDSETREG;         
-       mib[3] = 0;
-       mib[4] = 0;
-       mib[5] = 0;             /* no flags */
-
-       if (sysctl(mib, 3, &kr, &needed, NULL, 0) < 0)
-               quit("trace facility failure, KERN_KDSETREG\n");
-
-       mib[0] = CTL_KERN;
-       mib[1] = KERN_KDEBUG;
-       mib[2] = KERN_KDSETUP;          
-       mib[3] = 0;
-       mib[4] = 0;
-       mib[5] = 0;             /* no flags */
-
-       if (sysctl(mib, 3, NULL, &needed, NULL, 0) < 0)
-               quit("trace facility failure, KERN_KDSETUP\n");
-}
-
-void
-sample_sc()
-{
-       kd_buf *kd;
-       int i, count;
-       size_t needed;
-       uint32_t my_buffer_size = 0;
+       if (filter_mode == DEFAULT_DO_NOT_FILTER)
+               return true;
 
-       if (!RAW_flag)
-               get_bufinfo(&bufinfo);
-       else
-               my_buffer_size = num_events * sizeof(kd_buf);
+       if (filter_mode & DISKIO_FILTER) {
+               if ((type & P_DISKIO_MASK) == P_DISKIO)
+                       return true;
 
-       if (need_new_map) {
-               read_command_map();
-               need_new_map = 0;
+               if (type == Throttled)
+                       return true;
        }
-       if (!RAW_flag) {
-               needed = bufinfo.nkdbufs * sizeof(kd_buf);
-
-               mib[0] = CTL_KERN;
-               mib[1] = KERN_KDEBUG;
-               mib[2] = KERN_KDREADTR;         
-               mib[3] = 0;
-               mib[4] = 0;
-               mib[5] = 0;             /* no flags */
-
-               if (sysctl(mib, 3, my_buffer, &needed, NULL, 0) < 0)
-                       quit("trace facility failure, KERN_KDREADTR\n");
-               count = needed;
-
-               if (count > (num_events / 8)) {
-                       if (usleep_ms > USLEEP_BEHIND)
-                               usleep_ms = USLEEP_BEHIND;
-                       else if (usleep_ms > USLEEP_MIN)
-                               usleep_ms /= 2;
-
-               } else  if (count < (num_events / 16)) {
-                       if (usleep_ms < USLEEP_MAX)
-                               usleep_ms *= 2;
-               }
 
-               if (bufinfo.flags & KDBG_WRAPPED) {
-                       fprintf(stderr, "fs_usage: buffer overrun, events generated too quickly: %d\n", count);
-
-                       delete_all_events();
+       if (filter_mode & EXEC_FILTER) {
+               if (type == BSC_execve || type == BSC_posix_spawn)
+                       return true;
+       }
 
-                       need_new_map = 1;
-               
-                       set_enable(0);
-                       set_enable(1);
-               }
-       } else {
-               int bytes_read;
+       if (filter_mode & PATHNAME_FILTER) {
+               if (ti && ti->pathname[0])
+                       return true;
 
-                if ((bytes_read = read(RAW_fd, my_buffer, my_buffer_size)) < sizeof(kd_buf))
-                       exit(0);
-               count = bytes_read / sizeof(kd_buf);
+               if (type == BSC_close || type == BSC_close_nocancel ||
+                       type == BSC_guarded_close_np)
+                       return true;
        }
-       kd = (kd_buf *)my_buffer;
-#if 0
-       fprintf(stderr, "READTR returned %d items\n", count);
-#endif
-       for (i = 0; i < count; i++) {
-               uint32_t debugid;
-               uintptr_t thread;
-               int type;
-               int index;
-               uintptr_t *sargptr;
-               uint64_t now;
-               long long l_usecs;
-               int secs;
-               long curr_time;
-               th_info_t       ti;
-                struct diskio  *dio;
 
+       if (!ti) {
+               if (filter_mode & FILESYS_FILTER)
+                       return true;
 
-               thread  = kd[i].arg5;
-               debugid = kd[i].debugid;
-               type    = kd[i].debugid & DBG_FUNC_MASK;
+               return 0;
+       }
 
-               now = kdbg_get_timestamp(&kd[i]);
+       switch (type) {
+               case BSC_close:
+               case BSC_close_nocancel:
+               case BSC_guarded_close_np:
+                       fd = ti->arg1;
+                       network_fd_isset = fd_is_network(pid, fd);
+
+                       if (error == 0)
+                               fd_set_is_network(pid, fd, false);
+
+                       if (network_fd_isset) {
+                               if (filter_mode & NETWORK_FILTER)
+                                       ret = true;
+                       } else {
+                               if (filter_mode & FILESYS_FILTER)
+                                       ret = true;
+                       }
 
-               if (i == 0 && !RAW_flag) {
+                       break;
 
-                       curr_time = time((long *)0);
+               case BSC_read:
+               case BSC_write:
+               case BSC_read_nocancel:
+               case BSC_write_nocancel:
                        /*
-                        * Compute bias seconds after each trace buffer read.
-                        * This helps resync timestamps with the system clock
-                        * in the event of a system sleep.
+                        * we don't care about error in these cases
                         */
-                       if (bias_secs == 0 || curr_time < last_time || curr_time > (last_time + 2)) {
-                               l_usecs = (long long)(now / divisor);
-                               secs = l_usecs / 1000000;
-                               bias_secs = curr_time - secs;
-                       }
-               }
-               if (RAW_flag && bias_now == 0.0)
-                       bias_now = now;
-               
-               if ((type & P_DISKIO_MASK) == P_DISKIO) {
-                       insert_diskio(type, kd[i].arg1, kd[i].arg2, kd[i].arg3, kd[i].arg4, thread, (double)now);
-                       continue;
-               }
-               if ((type & P_DISKIO_MASK) == P_DISKIO_DONE) {
-                       if ((dio = complete_diskio(kd[i].arg1, kd[i].arg4, kd[i].arg3, thread, (double)now))) {
-                               print_diskio(dio);
-                               free_diskio(dio);
-                       }
-                       continue;
-               }
-               switch (type) {
+                       fd = ti->arg1;
 
-               case P_CS_ReadChunk:
-               case P_CS_WriteChunk:
-               case P_CS_MetaRead:
-               case P_CS_MetaWrite:
-                   insert_diskio(type, kd[i].arg2, kd[i].arg1, kd[i].arg3, kd[i].arg4, thread, (double)now);
-                   continue;
-
-               case P_CS_Originated_Read:
-               case P_CS_Originated_Write:
-                   insert_diskio(type, kd[i].arg2, CS_DEV, kd[i].arg3, kd[i].arg4, thread, (double)now);
-                   continue;
-
-               case P_CS_ReadChunkDone:
-               case P_CS_WriteChunkDone:
-               case P_CS_Originated_ReadDone:
-               case P_CS_Originated_WriteDone:
-               case P_CS_MetaReadDone:
-               case P_CS_MetaWriteDone:
-                   if ((dio = complete_diskio(kd[i].arg2, kd[i].arg4, kd[i].arg3, thread, (double)now))) {
-                           print_diskio(dio);
-                           free_diskio(dio);
-                   }
-                   continue;
-
-               case TRACE_DATA_NEWTHREAD:
-                   if (kd[i].arg1) {
-                           if ((ti = add_event(thread, TRACE_DATA_NEWTHREAD)) == NULL)
-                                   continue;
-                           ti->child_thread = kd[i].arg1;
-                           ti->pid = kd[i].arg2;
-                   }
-                   continue;
-
-               case TRACE_STRING_NEWTHREAD:
-                   if ((ti = find_event(thread, TRACE_DATA_NEWTHREAD)) == (struct th_info *)0)
-                           continue;
-
-                   create_map_entry(ti->child_thread, ti->pid, (char *)&kd[i].arg1);
-
-                   delete_event(ti);
-                   continue;
-       
-               case TRACE_DATA_EXEC:
-                   if ((ti = add_event(thread, TRACE_DATA_EXEC)) == NULL)
-                           continue;
-
-                   ti->pid = kd[i].arg1;
-                   continue;       
-
-               case TRACE_STRING_EXEC:
-                   if ((ti = find_event(thread, BSC_execve))) {
-                           if (ti->pathname[0])
-                                   exit_event("execve", thread, BSC_execve, 0, 0, 0, 0, FMT_DEFAULT, (double)now);
-
-                   } else if ((ti = find_event(thread, BSC_posix_spawn))) {
-                           if (ti->pathname[0])
-                                   exit_event("posix_spawn", thread, BSC_posix_spawn, 0, 0, 0, 0, FMT_DEFAULT, (double)now);
-                   }
-                   if ((ti = find_event(thread, TRACE_DATA_EXEC)) == (struct th_info *)0)
-                           continue;
-
-                   create_map_entry(thread, ti->pid, (char *)&kd[i].arg1);
-
-                   delete_event(ti);
-                   continue;
-
-               case BSC_thread_terminate:
-                   delete_map_entry(thread);
-                   continue;
-
-               case BSC_exit:
-                   continue;
-
-               case proc_exit:
-                   kd[i].arg1 = kd[i].arg2 >> 8;
-                   type = BSC_exit;
-                   break;
-
-               case BSC_mmap:
-                   if (kd[i].arg4 & MAP_ANON)
-                           continue;
-                   break;
-
-               case MACH_idle:
-               case MACH_sched:
-               case MACH_stkhandoff:
-                    mark_thread_waited(thread);
-                   continue;
-
-               case VFS_LOOKUP:
-                   if ((ti = find_event(thread, 0)) == (struct th_info *)0)
-                           continue;
-
-                   if (debugid & DBG_FUNC_START) {
-                           if (ti->pathname2[0])
-                                   continue;
-                           if (ti->pathname[0] == 0)
-                                   sargptr = ti->pathname;
-                           else
-                                   sargptr = ti->pathname2;
-                           *sargptr++ = kd[i].arg2;
-                           *sargptr++ = kd[i].arg3;
-                           *sargptr++ = kd[i].arg4;
-                           /*
-                            * NULL terminate the 'string'
-                            */
-                           *sargptr = 0;
-
-                           ti->pathptr = sargptr;
-                   } else {
-                           sargptr = ti->pathptr;
-
-                           /* 
-                            * We don't want to overrun our pathname buffer if the
-                            * kernel sends us more VFS_LOOKUP entries than we can
-                            * handle and we only handle 2 pathname lookups for
-                            * a given system call
-                            */
-                           if (sargptr == 0)
-                                   continue;
-                           if (ti->pathname2[0]) {
-                                   if ((uintptr_t)sargptr >= (uintptr_t)&ti->pathname2[NUMPARMS])
-                                           continue;
-                           } else {
-                                   if ((uintptr_t)sargptr >= (uintptr_t)&ti->pathname[NUMPARMS])
-                                           continue;
-                           }
-                           *sargptr++ = kd[i].arg1;
-                           *sargptr++ = kd[i].arg2;
-                           *sargptr++ = kd[i].arg3;
-                           *sargptr++ = kd[i].arg4;
-                           /*
-                            * NULL terminate the 'string'
-                            */
-                           *sargptr = 0;
-
-                           if (debugid & DBG_FUNC_END) {
-                                   if (ti->pathname2[0])
-                                           ti->pathptr = 0;
-                                   else
-                                           ti->pathptr = ti->pathname2;
-                           } else
-                                   ti->pathptr = sargptr;
-                   }
-                   continue;
-               }
+                       if (fd_is_network(pid, fd)) {
+                               if (filter_mode & NETWORK_FILTER)
+                                       ret = true;
+                       } else if (filter_mode & FILESYS_FILTER) {
+                               ret = true;
+                       }
 
-               if (debugid & DBG_FUNC_START) {
-                       char * p;
+                       break;
 
-                       if ((type & CLASS_MASK) == FILEMGR_BASE) {
+               case BSC_accept:
+               case BSC_accept_nocancel:
+               case BSC_socket:
+                       fd = retval;
 
-                               index = filemgr_index(type);
+                       if (error == 0)
+                               fd_set_is_network(pid, fd, true);
 
-                               if (index >= MAX_FILEMGR)
-                                       continue;
+                       if (filter_mode & NETWORK_FILTER)
+                               ret = true;
 
-                               if ((p = filemgr_calls[index].fm_name) == NULL)
-                                       continue;
-                       } else
-                               p = NULL;
+                       break;
 
-                       enter_event(thread, type, &kd[i], p, (double)now);
-                       continue;
-               }
+               case BSC_recvfrom:
+               case BSC_sendto:
+               case BSC_recvmsg:
+               case BSC_sendmsg:
+               case BSC_connect:
+               case BSC_bind:
+               case BSC_listen:
+               case BSC_sendto_nocancel:
+               case BSC_recvfrom_nocancel:
+               case BSC_recvmsg_nocancel:
+               case BSC_sendmsg_nocancel:
+               case BSC_connect_nocancel:
+                       fd = ti->arg1;
+
+                       if (error == 0)
+                               fd_set_is_network(pid, fd, true);
+
+                       if (filter_mode & NETWORK_FILTER)
+                               ret = true;
 
-               switch (type) {
+                       break;
 
-               case Throttled:
-                    exit_event("  THROTTLED", thread, type, 0, 0, 0, 0, FMT_DEFAULT, (double)now);
-                    continue;
+               case BSC_select:
+               case BSC_select_nocancel:
+               case BSC_socketpair:
+                       /*
+                        * Cannot determine info about file descriptors
+                        */
+                       if (filter_mode & NETWORK_FILTER)
+                               ret = true;
 
-               case P_CS_SYNC_DISK:
-                    exit_event("  SyncCacheCS", thread, type, kd[i].arg1, 0, 0, 0, FMT_SYNC_DISK_CS, (double)now);
-                    continue;
+                       break;
 
-               case SPEC_ioctl:
-                    if (kd[i].arg2 == DKIOCSYNCHRONIZECACHE)
-                            exit_event("IOCTL", thread, type, kd[i].arg1, kd[i].arg2, 0, 0, FMT_SPEC_IOCTL, (double)now);
-                    else {
-                            if ((ti = find_event(thread, type)))
-                                    delete_event(ti);
-                    }
-                    continue;
+               case BSC_dup:
+               case BSC_dup2:
+                       /*
+                        * We track these cases for fd state only
+                        */
+                       fd = ti->arg1;
 
-               case MACH_pageout:
-                    if (kd[i].arg2) 
-                            exit_event("PAGE_OUT_ANON", thread, type, 0, kd[i].arg1, 0, 0, FMT_PGOUT, (double)now);
-                    else
-                            exit_event("PAGE_OUT_FILE", thread, type, 0, kd[i].arg1, 0, 0, FMT_PGOUT, (double)now);
-                    continue;
+                       if (error == 0 && fd_is_network(pid, fd)) {
+                               /*
+                                * then we are duping a socket descriptor
+                                */
+                               fd = retval;  /* the new fd */
+                               fd_set_is_network(pid, fd, true);
+                       }
 
-               case MACH_vmfault:
-                    if (kd[i].arg4 == DBG_PAGEIN_FAULT)
-                            exit_event("PAGE_IN", thread, type, 0, kd[i].arg1, kd[i].arg2, 0, FMT_PGIN, (double)now);
-                    else if (kd[i].arg4 == DBG_PAGEINV_FAULT)
-                            exit_event("PAGE_IN_FILE", thread, type, 0, kd[i].arg1, kd[i].arg2, 0, FMT_PGIN, (double)now);
-                    else if (kd[i].arg4 == DBG_PAGEIND_FAULT)
-                            exit_event("PAGE_IN_ANON", thread, type, 0, kd[i].arg1, kd[i].arg2, 0, FMT_PGIN, (double)now);
-                    else if (kd[i].arg4 == DBG_CACHE_HIT_FAULT)
-                            exit_event("CACHE_HIT", thread, type, 0, kd[i].arg1, kd[i].arg2, 0, FMT_CACHEHIT, (double)now);
-                    else {
-                            if ((ti = find_event(thread, type)))
-                                    delete_event(ti);
-                    }
-                    continue;
+                       break;
 
-               case MSC_map_fd:
-                    exit_event("map_fd", thread, type, kd[i].arg1, kd[i].arg2, 0, 0, FMT_FD, (double)now);
-                    continue;
-                     
-               case BSC_mmap_extended:
-               case BSC_mmap_extended2:
-               case BSC_msync_extended:
-               case BSC_pread_extended:
-               case BSC_pwrite_extended:
-                    extend_syscall(thread, type, &kd[i]);
-                    continue;
-               }
+               default:
+                       if (filter_mode & FILESYS_FILTER)
+                               ret = true;
 
-               if ((type & CSC_MASK) == BSC_BASE) {
+                       break;
+       }
 
-                       if ((index = BSC_INDEX(type)) >= MAX_BSD_SYSCALL)
-                               continue;
+       return ret;
+}
 
-                       if (bsd_syscalls[index].sc_name) {
-                               exit_event(bsd_syscalls[index].sc_name, thread, type, kd[i].arg1, kd[i].arg2, kd[i].arg3, kd[i].arg4,
-                                          bsd_syscalls[index].sc_format, (double)now);
+int
+print_open(ktrace_event_t event, uint64_t flags)
+{
+       char mode[] = {
+               '_',
+               '_',
+               (flags & O_CREAT) ? 'C' : '_',
+               (flags & O_APPEND) ? 'A' : '_',
+               (flags & O_TRUNC) ? 'T' : '_',
+               (flags & O_EXCL) ? 'E' : '_',
+               (flags & O_NONBLOCK) ? 'N' : '_',
+               (flags & O_SHLOCK) ? 'l' : (flags & O_EXLOCK) ? 'L' : '_',
+               (flags & O_NOFOLLOW) ? 'F' : '_',
+               (flags & O_SYMLINK) ? 'S' : '_',
+               (flags & O_EVTONLY) ? 'V' : '_',
+               (flags & O_CLOEXEC) ? 'X' : '_',
+               '\0',
+       };
+
+       if (flags & O_RDWR) {
+               mode[0] = 'R';
+               mode[1] = 'W';
+       } else if (flags & O_WRONLY) {
+               mode[1] = 'W';
+       } else {
+               mode[0] = 'R';
+       }
 
-                               if (type == BSC_exit)
-                                       delete_map_entry(thread);
-                       }
-               } else if ((type & CLASS_MASK) == FILEMGR_BASE) {
-               
-                       if ((index = filemgr_index(type)) >= MAX_FILEMGR)
-                               continue;
-
-                       if (filemgr_calls[index].fm_name) {
-                               exit_event(filemgr_calls[index].fm_name, thread, type, kd[i].arg1, kd[i].arg2, kd[i].arg3, kd[i].arg4,
-                                          FMT_DEFAULT, (double)now);
-                       }
-               }
+       if (event->arg1) {
+               return printf("      [%3d] (%s) ", (int)event->arg1, mode);
+       } else {
+               return printf(" F=%-3d      (%s) ", (int)event->arg2, mode);
        }
-       fflush(0);
 }
 
-
+/*
+ * called from:
+ *
+ * exit_event() (syscalls etc.)
+ * print_diskio() (disk I/Os)
+ * block callback for TrimExtent
+ */
 void
-enter_event_now(uintptr_t thread, int type, kd_buf *kd, char *name, double now)
+format_print(th_info_t ti, char *sc_name, ktrace_event_t event,
+            uint64_t type, int format, uint64_t now, uint64_t stime,
+            int waited, const char *pathname, struct diskio *dio)
 {
-       th_info_t       ti;
-       threadmap_t     tme;
-       int secs;
-       int usecs;
-       long long l_usecs;
-       long curr_time;
+       uint64_t secs, usecs;
+       int nopadding = 0;
+       static time_t last_walltime_secs = -1;
+       const char *command_name;
+       pid_t pid;
+       int len = 0;
        int clen = 0;
-       int tsclen = 0;
-       int nmclen = 0;
-       int argsclen = 0;
-       char buf[MAXWIDTH];
+       size_t tlen = 0;
+       uint64_t class;
+       uint64_t user_addr;
+       uint64_t user_size;
+       char *framework_name;
+       char *framework_type;
+       char *p1;
+       char *p2;
+       char buf[2 * PATH_MAX + 64];
+       char cs_diskname[32];
+       uint64_t threadid;
+       struct timeval now_walltime;
 
-       if ((ti = add_event(thread, type)) == NULL)
-               return;
+       static char timestamp[32];
+       static size_t timestamp_len = 0;
 
-       ti->stime  = now;
-       ti->arg1   = kd->arg1;
-       ti->arg2   = kd->arg2;
-       ti->arg3   = kd->arg3;
-       ti->arg4   = kd->arg4;
-
-       if ((type & CLASS_MASK) == FILEMGR_BASE &&
-           (!RAW_flag || (now >= start_time && now <= end_time))) {
-
-               filemgr_in_progress++;
-               ti->in_filemgr = 1;
-
-               if (RAW_flag) {
-                       l_usecs = (long long)((now - bias_now) / divisor);
-                       l_usecs += (sample_TOD_secs * 1000000) + sample_TOD_usecs;
-               } else
-                       l_usecs = (long long)(now / divisor);
-               secs = l_usecs / 1000000;
-               curr_time = bias_secs + secs;
-                  
-               sprintf(buf, "%-8.8s", &(ctime(&curr_time)[11]));
-               tsclen = strlen(buf);
-
-               if (columns > MAXCOLS || wideflag) {
-                       usecs = l_usecs - (long long)((long long)secs * 1000000);
-                       sprintf(&buf[tsclen], ".%06ld", (long)usecs);
-                       tsclen = strlen(buf);
-               }
+       if (!mach_time_of_first_event)
+               mach_time_of_first_event = now;
 
-               /*
-                * Print timestamp column
-                */
-               printf("%s", buf);
-
-               tme = find_map_entry(thread);
-               if (tme) {
-                       sprintf(buf, "  %-25.25s ", name);
-                       nmclen = strlen(buf);
-                       printf("%s", buf);
+       if (format == FMT_DISKIO || format == FMT_DISKIO_CS) {
+               os_assert(dio);
+       } else {
+               os_assert(event);
 
-                       sprintf(buf, "(%d, 0x%lx, 0x%lx, 0x%lx)", (short)kd->arg1, kd->arg2, kd->arg3, kd->arg4);
-                       argsclen = strlen(buf);
-                      
-                       /*
-                        * Calculate white space out to command
-                        */
-                       if (columns > MAXCOLS || wideflag) {
-                               clen = columns - (tsclen + nmclen + argsclen + 20 + 11);
-                       } else
-                               clen = columns - (tsclen + nmclen + argsclen + 12);
-
-                       if (clen > 0) {
-                               printf("%s", buf);   /* print the kdargs */
-                               memset(buf, ' ', clen);
-                               buf[clen] = '\0';
-                               printf("%s", buf);
-                       }
-                       else if ((argsclen + clen) > 0) {
-                               /*
-                                * no room so wipe out the kdargs
-                                */
-                               memset(buf, ' ', (argsclen + clen));
-                               buf[argsclen + clen] = '\0';
-                               printf("%s", buf);
-                       }
-                       if (columns > MAXCOLS || wideflag)
-                               printf("%s.%d\n", tme->tm_command, (int)thread); 
-                       else
-                               printf("%-12.12s\n", tme->tm_command); 
-               } else
-                       printf("  %-24.24s (%5d, %#lx, 0x%lx, 0x%lx)\n",         name, (short)kd->arg1, kd->arg2, kd->arg3, kd->arg4);
+               if (format != FMT_UNMAP_INFO)
+                       os_assert(ti);
        }
-}
-
 
-void
-enter_event(uintptr_t thread, int type, kd_buf *kd, char *name, double now)
-{
-       int index;
-
-       if (type == MACH_pageout || type == MACH_vmfault || type == MSC_map_fd || type == SPEC_ioctl || type == Throttled || type == P_CS_SYNC_DISK) {
-               enter_event_now(thread, type, kd, name, now);
+       /* <rdar://problem/19852325> Filter out WindowServer/xcpm ioctls in fs_usage */
+       if (type == BSC_ioctl && ti->arg2 == 0xffffffffc030581dUL)
                return;
-       }
-       if ((type & CSC_MASK) == BSC_BASE) {
 
-               if ((index = BSC_INDEX(type)) >= MAX_BSD_SYSCALL)
-                       return;
+       /* honor -S and -E */
+       if (RAW_flag) {
+               uint64_t relative_time_ns;
 
-               if (bsd_syscalls[index].sc_name)
-                       enter_event_now(thread, type, kd, name, now);
-               return;
-       }
-       if ((type & CLASS_MASK) == FILEMGR_BASE) {
+               relative_time_ns = mach_to_nano(now - mach_time_of_first_event);
 
-               if ((index = filemgr_index(type)) >= MAX_FILEMGR)
+               if (relative_time_ns < start_time_ns || relative_time_ns > end_time_ns)
                        return;
-              
-               if (filemgr_calls[index].fm_name)
-                       enter_event_now(thread, type, kd, name, now);
        }
-}
 
-/*
- * Handle system call extended trace data.
- * pread and pwrite:
- *     Wipe out the kd args that were collected upon syscall_entry
- *     because it is the extended info that we really want, and it
- *     is all we really need.
-*/
+       class = KDBG_EXTRACT_CLASS(type);
 
-void
-extend_syscall(uintptr_t thread, int type, kd_buf *kd)
-{
-       th_info_t       ti;
-
-       switch (type) {
-       case BSC_mmap_extended:
-           if ((ti = find_event(thread, BSC_mmap)) == (struct th_info *)0)
-                   return;
-           ti->arg8   = ti->arg3;  /* save protection */
-           ti->arg1   = kd->arg1;  /* the fd */
-           ti->arg3   = kd->arg2;  /* bottom half address */
-           ti->arg5   = kd->arg3;  /* bottom half size */         
-           break;
-       case BSC_mmap_extended2:
-           if ((ti = find_event(thread, BSC_mmap)) == (struct th_info *)0)
-                   return;
-           ti->arg2   = kd->arg1;  /* top half address */
-           ti->arg4   = kd->arg2;  /* top half size */
-           ti->arg6   = kd->arg3;  /* top half file offset */
-           ti->arg7   = kd->arg4;  /* bottom half file offset */
-           break;
-       case BSC_msync_extended:
-           if ((ti = find_event(thread, BSC_msync)) == (struct th_info *)0) {
-                   if ((ti = find_event(thread, BSC_msync_nocancel)) == (struct th_info *)0)
-                           return;
-           }
-           ti->arg4   = kd->arg1;  /* top half address */
-           ti->arg5   = kd->arg2;  /* top half size */
-           break;
-       case BSC_pread_extended:
-           if ((ti = find_event(thread, BSC_pread)) == (struct th_info *)0) {
-                   if ((ti = find_event(thread, BSC_pread_nocancel)) == (struct th_info *)0)
-                           return;
-           }
-           ti->arg1   = kd->arg1;  /* the fd */
-           ti->arg2   = kd->arg2;  /* nbytes */
-           ti->arg3   = kd->arg3;  /* top half offset */
-           ti->arg4   = kd->arg4;  /* bottom half offset */       
-           break;
-       case BSC_pwrite_extended:
-           if ((ti = find_event(thread, BSC_pwrite)) == (struct th_info *)0) {
-                   if ((ti = find_event(thread, BSC_pwrite_nocancel)) == (struct th_info *)0)
-                           return;
-           }
-           ti->arg1   = kd->arg1;  /* the fd */
-           ti->arg2   = kd->arg2;  /* nbytes */
-           ti->arg3   = kd->arg3;  /* top half offset */
-           ti->arg4   = kd->arg4;  /* bottom half offset */
-           break;
-       default:
-           return;
-       }
-}
+       if (dio) {
+               command_name = dio->issuing_command;
+               threadid = dio->issuing_thread;
+               pid = dio->issuing_pid;
+               now_walltime = dio->completed_walltime;
+       } else {
+               if (ti && ti->command[0] != '\0') {
+                       command_name = ti->command;
+                       threadid = ti->thread;
+                       pid = ti->pid;
+               } else {
+                       command_name = ktrace_get_execname_for_thread(s, event->threadid);
+                       threadid = event->threadid;
+                       pid = ktrace_get_pid_for_thread(s, event->threadid);
+               }
 
+               now_walltime = event->walltime;
+       }
 
-void
-exit_event(char *sc_name, uintptr_t thread, int type, int arg1, int arg2, int arg3, int arg4,
-          int format, double now)
-{
-        th_info_t      ti;
-      
-       if ((ti = find_event(thread, type)) == (struct th_info *)0)
-               return;
+       if (!want_kernel_task && pid == 0)
+               return;
 
-       if (check_filter_mode(ti, type, arg1, arg2, sc_name))
-               format_print(ti, sc_name, thread, type, arg1, arg2, arg3, arg4, format, now, ti->stime, ti->waited, (char *)ti->pathname, NULL);
+       if (!command_name)
+               command_name = "";
 
-       if ((type & CLASS_MASK) == FILEMGR_BASE) {
-               ti->in_filemgr = 0;
+       os_assert(now_walltime.tv_sec || now_walltime.tv_usec);
 
-               if (filemgr_in_progress > 0)
-                       filemgr_in_progress--;
+       /* try and reuse the timestamp string */
+       if (last_walltime_secs != now_walltime.tv_sec) {
+               timestamp_len = strftime(timestamp, sizeof (timestamp), "%H:%M:%S", localtime(&now_walltime.tv_sec));
+               last_walltime_secs = now_walltime.tv_sec;
        }
-       delete_event(ti);
-}
 
+       if (columns > MAXCOLS || wideflag) {
+               tlen = timestamp_len;
+               nopadding = 0;
 
-void
-get_mode_nibble(char * buf, int smode, int special, char x_on, char x_off)
-{
-        if (smode & 04)
-               buf[0] = 'r';
-        if (smode & 02)
-               buf[1] = 'w';
-       if (smode & 01) {
-               if (special)
-                       buf[2] = x_on;
-               else 
-                       buf[2] = 'x';
+               sprintf(&timestamp[tlen], ".%06d", now_walltime.tv_usec);
+               tlen += 7;
+
+               timestamp[tlen] = '\0';
        } else {
-               if (special)
-                       buf[2] = x_off;
+               nopadding = 1;
        }
-}
 
+       clen = printf("%s  %-17.17s", timestamp, sc_name);
 
-void
-get_mode_string(int mode, char *buf)
-{
-        memset(buf, '-', 9);
-       buf[9] = '\0';
+       framework_name = NULL;
 
-       get_mode_nibble(&buf[6], mode, (mode & 01000), 't', 'T');
-       get_mode_nibble(&buf[3], (mode>>3), (mode & 02000), 's', 'S');
-       get_mode_nibble(&buf[0], (mode>>6), (mode & 04000), 's', 'S');
-}
+       if (columns > MAXCOLS || wideflag) {
+               off_t offset_reassembled = 0LL;
 
+               switch (format) {
+                       case FMT_NOTHING:
+                               clen += printf("                  ");
+                               break;
 
-int clip_64bit(char *s, uint64_t value)
-{
-        int clen = 0;
+                       case FMT_AT:
+                       case FMT_RENAMEAT:
+                       case FMT_DEFAULT:
+                               /*
+                                * pathname based system calls or
+                                * calls with no fd or pathname (i.e.  sync)
+                                */
+                               if (event->arg1)
+                                       clen += printf("      [%3d]       ", (int)event->arg1);
+                               else
+                                       clen += printf("                  ");
 
-       if ( (value & 0xff00000000000000LL) )
-               clen = printf("%s0x%16.16qx", s, value);
-       else if ( (value & 0x00ff000000000000LL) )
-               clen = printf("%s0x%14.14qx  ", s, value);
-       else if ( (value & 0x0000ff0000000000LL) )
-               clen = printf("%s0x%12.12qx    ", s, value);
-       else if ( (value & 0x000000ff00000000LL) )
-               clen = printf("%s0x%10.10qx      ", s, value);
-       else
-               clen = printf("%s0x%8.8qx        ", s, value);
-       
-       return (clen);
-}
+                               break;
 
+                       case FMT_FD:
+                               /*
+                                * fd based system call... no I/O
+                                */
+                               if (event->arg1)
+                                       clen += printf(" F=%-3d[%3d]", (int)ti->arg1, (int)event->arg1);
+                               else
+                                       clen += printf(" F=%-3d", (int)ti->arg1);
 
-void
-format_print(struct th_info *ti, char *sc_name, uintptr_t thread, int type, int arg1, int arg2, int arg3, int arg4,
-            int format, double now, double stime, int waited, char *pathname, struct diskio *dio)
-{
-        int secs;
-       int usecs;
-       int nopadding = 0;
-       long long l_usecs;
-       long curr_time;
-       char *command_name;
-       int in_filemgr = 0;
-       int len = 0;
-       int clen = 0;
-       int tlen = 0;
-       int class;
-       uint64_t user_addr;
-       uint64_t user_size;
-       char *framework_name;
-       char *framework_type;
-       char *p1;
-       char *p2;
-       char buf[MAXWIDTH];
-       char cs_diskname[32];
-       command_name = "";
-       static char timestamp[32];
-       static int  last_timestamp = -1;
-       static int  timestamp_len = 0;
+                               break;
+
+                       case FMT_FD_2:
+                               /*
+                                * accept, dup, dup2
+                                */
+                               if (event->arg1)
+                                       clen += printf(" F=%-3d[%3d]", (int)ti->arg1, (int)event->arg1);
+                               else
+                                       clen += printf(" F=%-3d  F=%-3d", (int)ti->arg1, (int)event->arg2);
+
+                               break;
+
+                       case FMT_FD_IO:
+                               /*
+                                * system calls with fd's that return an I/O completion count
+                                */
+                               if (event->arg1)
+                                       clen += printf(" F=%-3d[%3d]", (int)ti->arg1, (int)event->arg1);
+                               else
+                                       clen += printf(" F=%-3d  B=0x%-6" PRIx64, (int)ti->arg1, (uint64_t)event->arg2);
+
+                               break;
+
+                       case FMT_PGIN:
+                               /*
+                                * pagein
+                                */
+                               user_addr = ((uint64_t)event->arg1 << 32) | (uint32_t)event->arg2;
+
+                               lookup_name(user_addr, &framework_type, &framework_name);
+                               clen += clip_64bit(" A=", user_addr);
+                               break;
+
+                       case FMT_CACHEHIT:
+                               /*
+                                * cache hit
+                                */
+                               user_addr = ((uint64_t)event->arg1 << 32) | (uint32_t)event->arg2;
+
+                               lookup_name(user_addr, &framework_type, &framework_name);
+                               clen += clip_64bit(" A=", user_addr);
+                               break;
+
+                       case FMT_PGOUT:
+                               /*
+                                * pageout
+                                */
+                               clen += printf("      B=0x%-8" PRIx64, (uint64_t)event->arg1);
+                               break;
 
-       if (RAW_flag) {
-               l_usecs = (long long)((now - bias_now) / divisor);
+                       case FMT_HFS_update:
+                       {
+                               static const struct {
+                                       int flag;
+                                       char ch;
+                               } hfsflags[] = {
+                                       { DBG_HFS_UPDATE_SKIPPED,   'S' },
+                                       { DBG_HFS_UPDATE_FORCE,     'F' },
+                                       { DBG_HFS_UPDATE_MODIFIED,  'M' },
+                                       { DBG_HFS_UPDATE_MINOR,     'N' },
+                                       { DBG_HFS_UPDATE_DATEADDED, 'd' },
+                                       { DBG_HFS_UPDATE_CHGTIME,   'c' },
+                                       { DBG_HFS_UPDATE_ACCTIME,   'a' },
+                                       { DBG_HFS_UPDATE_MODTIME,   'm' },
+                               };
+                               size_t i;
+                               int flagcount;
+                               char *sbuf;
+                               int  sflag = (int)event->arg2;
+
+                               flagcount = sizeof (hfsflags) / sizeof (*hfsflags);
+                               sbuf = malloc(flagcount + 1);
+
+                               for (i = 0; i < flagcount; i++) {
+                                       if (sflag & hfsflags[i].flag) {
+                                               sbuf[i] = hfsflags[i].ch;
+                                       } else {
+                                               sbuf[i] = '_';
+                                       }
+                               }
 
-               if ((double)l_usecs < start_time || (double)l_usecs > end_time)
-                       return;
+                               sbuf[flagcount] = '\0';
 
-               l_usecs += (sample_TOD_secs * 1000000) + sample_TOD_usecs;
-       }
-       else
-               l_usecs = (long long)(now / divisor);
-       secs = l_usecs / 1000000;
-       curr_time = bias_secs + secs;
+                               clen += printf(" %*s(%s) ", 17 - flagcount, "", sbuf);
 
-       class = type >> 24;
+                               free(sbuf);
 
-       if (dio)
-               command_name = dio->issuing_command;
-       else {
-               threadmap_t     tme;
+                               pathname = ktrace_get_path_for_vp(s, event->arg1);
 
-               if ((tme = find_map_entry(thread)))
-                       command_name = tme->tm_command;
-       }
-       if (last_timestamp != curr_time) {
-               timestamp_len = sprintf(timestamp, "%-8.8s", &(ctime(&curr_time)[11]));
-               last_timestamp = curr_time;
-       }
-       if (columns > MAXCOLS || wideflag) {
-               int usec;
+                               if (!pathname)
+                                       pathname = "";
 
-               tlen = timestamp_len;
-               nopadding = 0;
-               usec = (l_usecs - (long long)((long long)secs * 1000000));
+                               nopadding = 1;
 
-               sprintf(&timestamp[tlen], ".%06ld", (long)usec);
-               tlen += 7;
+                               break;
+                       }
 
-               timestamp[tlen] = '\0';
+                       case FMT_DISKIO:
+                               /*
+                                * physical disk I/O
+                                */
+                               if (dio->io_errno) {
+                                       clen += printf(" D=0x%8.8" PRIx64 "  [%3d]", dio->blkno, (int)dio->io_errno);
+                               } else {
+                                       if (BC_flag)
+                                               clen += printf(" D=0x%8.8" PRIx64 "  B=0x%-6" PRIx64 " BC:%s /dev/%s ", dio->blkno, dio->iosize, BC_STR(dio->bc_info), find_disk_name(dio->dev));
+                                       else
+                                               clen += printf(" D=0x%8.8" PRIx64 "  B=0x%-6" PRIx64 " /dev/%s ", dio->blkno, dio->iosize, find_disk_name(dio->dev));
+
+                                       if (dio->is_meta) {
+                                               if (!(type & P_DISKIO_READ)) {
+                                                       pathname = meta_find_name(dio->blkno);
+                                               }
+                                       } else {
+                                               pathname = ktrace_get_path_for_vp(s, dio->vnodeid);
+
+                                               if (!pathname)
+                                                       pathname = "";
+                                       }
+
+                                       nopadding = 1;
+                               }
 
-               if (filemgr_in_progress) {
-                       if (class != FILEMGR_CLASS) {
-                               if (find_event(thread, -1))
-                                       in_filemgr = 1;
-                       }
-               }
-       } else
-               nopadding = 1;
+                               break;
 
-       if ((class == FILEMGR_CLASS) && (columns > MAXCOLS || wideflag))
-               clen = printf("%s  %-20.20s", timestamp, sc_name);
-       else if (in_filemgr)
-               clen = printf("%s    %-15.15s", timestamp, sc_name);
-       else
-               clen = printf("%s  %-17.17s", timestamp, sc_name);
-       
+                       case FMT_DISKIO_CS:
+                               /*
+                                * physical disk I/O
+                                */
+                               if (dio->io_errno)
+                                       clen += printf(" D=0x%8.8" PRIx64 "  [%3" PRIu64 "]", dio->blkno, dio->io_errno);
+                               else
+                                       clen += printf(" D=0x%8.8" PRIx64 "  B=0x%-6" PRIx64 " /dev/%s", dio->blkno, dio->iosize, generate_cs_disk_name(dio->dev, cs_diskname));
 
-       framework_name = NULL;
+                               break;
 
-       if (columns > MAXCOLS || wideflag) {
+                       case FMT_SYNC_DISK_CS:
+                               /*
+                                * physical disk sync cache
+                                */
+                               clen += printf("                          /dev/%s", generate_cs_disk_name(event->arg1, cs_diskname));
 
-               off_t offset_reassembled = 0LL;
-               
-               switch (format) {
+                               break;
 
-                     case FMT_DEFAULT:
-                       /*
-                        * pathname based system calls or 
-                        * calls with no fd or pathname (i.e.  sync)
-                        */
-                       if (arg1)
-                               clen += printf("      [%3d]       ", arg1);
-                       else
-                               clen += printf("                  ");
-                       break;
+                       case FMT_MSYNC:
+                       {
+                               /*
+                                * msync
+                                */
+                               int  mlen = 0;
 
-                     case FMT_FD:
-                       /*
-                        * fd based system call... no I/O
-                        */
-                       if (arg1)
-                               clen += printf(" F=%-3d[%3d]", ti->arg1, arg1);
-                       else
-                               clen += printf(" F=%-3d", ti->arg1);
-                       break;
+                               buf[0] = '\0';
 
-                     case FMT_FD_2:
-                       /*
-                        * accept, dup, dup2
-                        */
-                       if (arg1)
-                               clen += printf(" F=%-3d[%3d]", ti->arg1, arg1);
-                       else
-                               clen += printf(" F=%-3d  F=%-3d", ti->arg1, arg2);
-                       break;
+                               if (ti->arg3 & MS_ASYNC)
+                                       mlen += sprintf(&buf[mlen], "MS_ASYNC | ");
+                               else
+                                       mlen += sprintf(&buf[mlen], "MS_SYNC | ");
 
-                     case FMT_FD_IO:
-                       /*
-                        * system calls with fd's that return an I/O completion count
-                        */
-                       if (arg1)
-                               clen += printf(" F=%-3d[%3d]", ti->arg1, arg1);
-                       else
-                               clen += printf(" F=%-3d  B=0x%-6x", ti->arg1, arg2);
-                       break;
+                               if (ti->arg3 & MS_INVALIDATE)
+                                       mlen += sprintf(&buf[mlen], "MS_INVALIDATE | ");
+                               if (ti->arg3 & MS_KILLPAGES)
+                                       mlen += sprintf(&buf[mlen], "MS_KILLPAGES | ");
+                               if (ti->arg3 & MS_DEACTIVATE)
+                                       mlen += sprintf(&buf[mlen], "MS_DEACTIVATE | ");
 
-                     case FMT_PGIN:
-                       /*
-                        * pagein
-                        */
-                       user_addr = ((uint64_t)arg2 << 32) | (uint32_t)arg3;
+                               if (ti->arg3 & ~(MS_ASYNC | MS_SYNC | MS_INVALIDATE | MS_KILLPAGES | MS_DEACTIVATE))
+                                       mlen += sprintf(&buf[mlen], "UNKNOWN | ");
 
-                       lookup_name(user_addr, &framework_type, &framework_name);
-                       clen += clip_64bit(" A=", user_addr);
-                       break;
+                               if (mlen)
+                                       buf[mlen - 3] = '\0';
 
-                     case FMT_CACHEHIT:
-                       /*
-                        * cache hit
-                        */
-                       user_addr = ((uint64_t)arg2 << 32) | (uint32_t)arg3;
+                               if (event->arg1)
+                                       clen += printf("      [%3d]", (int)event->arg1);
 
-                       lookup_name(user_addr, &framework_type, &framework_name);
-                       clen += clip_64bit(" A=", user_addr);
-                       break;
+                               user_addr = (((off_t)(unsigned int)(ti->arg4)) << 32) | (unsigned int)(ti->arg1);
+                               clen += clip_64bit(" A=", user_addr);
 
-                     case FMT_PGOUT:
-                       /*
-                        * pageout
-                        */
-                       clen += printf("      B=0x%-8x", arg2);
-                       break;
+                               user_size = (((off_t)(unsigned int)(ti->arg5)) << 32) | (unsigned int)(ti->arg2);
 
-                     case FMT_DISKIO:
-                       /*
-                        * physical disk I/O
-                        */
-                       if (dio->io_errno)
-                               clen += printf(" D=0x%8.8x  [%3d]", dio->blkno, dio->io_errno);
-                       else
-                               clen += printf(" D=0x%8.8x  B=0x%-6x   /dev/%s", dio->blkno, dio->iosize, find_disk_name(dio->dev));
-                       break;
+                               clen += printf("  B=0x%-16qx  <%s>", user_size, buf);
 
-                     case FMT_DISKIO_CS:
-                       /*
-                        * physical disk I/O
-                        */
-                       if (dio->io_errno)
-                               clen += printf(" D=0x%8.8x  [%3d]", dio->blkno, dio->io_errno);
-                       else
-                               clen += printf(" D=0x%8.8x  B=0x%-6x   /dev/%s", dio->blkno, dio->iosize, generate_cs_disk_name(dio->dev, &cs_diskname[0]));
-                       break;
+                               break;
+                       }
 
-                     case FMT_SYNC_DISK_CS:
-                       /*
-                        * physical disk sync cache
-                        */
-                       clen += printf("                            /dev/%s", generate_cs_disk_name(arg1, &cs_diskname[0]));
+                       case FMT_FLOCK:
+                       {
+                               /*
+                                * flock
+                                */
+                               int  mlen = 0;
 
-                       break;
+                               buf[0] = '\0';
 
-                     case FMT_MSYNC:
-                     {
-                       /*
-                        * msync
-                        */
-                       int  mlen = 0;
+                               if (ti->arg2 & LOCK_SH)
+                                       mlen += sprintf(&buf[mlen], "LOCK_SH | ");
+                               if (ti->arg2 & LOCK_EX)
+                                       mlen += sprintf(&buf[mlen], "LOCK_EX | ");
+                               if (ti->arg2 & LOCK_NB)
+                                       mlen += sprintf(&buf[mlen], "LOCK_NB | ");
+                               if (ti->arg2 & LOCK_UN)
+                                       mlen += sprintf(&buf[mlen], "LOCK_UN | ");
 
-                       buf[0] = '\0';
+                               if (ti->arg2 & ~(LOCK_SH | LOCK_EX | LOCK_NB | LOCK_UN))
+                                       mlen += sprintf(&buf[mlen], "UNKNOWN | ");
 
-                       if (ti->arg3 & MS_ASYNC)
-                               mlen += sprintf(&buf[mlen], "MS_ASYNC | ");
-                       else
-                               mlen += sprintf(&buf[mlen], "MS_SYNC | ");
+                               if (mlen)
+                                       buf[mlen - 3] = '\0';
+
+                               if (event->arg1)
+                                       clen += printf(" F=%-3d[%3d]  <%s>", (int)ti->arg1, (int)event->arg1, buf);
+                               else
+                                       clen += printf(" F=%-3d  <%s>", (int)ti->arg1, buf);
+
+                               break;
+                       }
 
-                       if (ti->arg3 & MS_INVALIDATE)
-                               mlen += sprintf(&buf[mlen], "MS_INVALIDATE | ");
-                       if (ti->arg3 & MS_KILLPAGES)
-                               mlen += sprintf(&buf[mlen], "MS_KILLPAGES | ");
-                       if (ti->arg3 & MS_DEACTIVATE)
-                               mlen += sprintf(&buf[mlen], "MS_DEACTIVATE | ");
+                       case FMT_FCNTL:
+                       {
+                               /*
+                                * fcntl
+                                */
+                               char *p = NULL;
+                               int fd = -1;
 
-                       if (ti->arg3 & ~(MS_ASYNC | MS_SYNC | MS_INVALIDATE | MS_KILLPAGES | MS_DEACTIVATE))
-                               mlen += sprintf(&buf[mlen], "UNKNOWN | ");
-                       
-                       if (mlen)
-                               buf[mlen - 3] = '\0';
+                               if (event->arg1)
+                                       clen += printf(" F=%-3d[%3d]", (int)ti->arg1, (int)event->arg1);
+                               else
+                                       clen += printf(" F=%-3d", (int)ti->arg1);
 
-                       if (arg1)
-                               clen += printf("      [%3d]", arg1);
+                               switch(ti->arg2) {
+                                       case F_DUPFD:
+                                               p = "DUPFD";
+                                               break;
 
-                       user_addr = (((off_t)(unsigned int)(ti->arg4)) << 32) | (unsigned int)(ti->arg1);
-                       clen += clip_64bit(" A=", user_addr);
+                                       case F_GETFD:
+                                               p = "GETFD";
+                                               break;
 
-                       user_size = (((off_t)(unsigned int)(ti->arg5)) << 32) | (unsigned int)(ti->arg2);
+                                       case F_SETFD:
+                                               p = "SETFD";
+                                               break;
 
-                       clen += printf("  B=0x%-16qx  <%s>", user_size, buf);
+                                       case F_GETFL:
+                                               p = "GETFL";
+                                               break;
 
-                       break;
-                     }
+                                       case F_SETFL:
+                                               p = "SETFL";
+                                               break;
+
+                                       case F_GETOWN:
+                                               p = "GETOWN";
+                                               break;
+
+                                       case F_SETOWN:
+                                               p = "SETOWN";
+                                               break;
+
+                                       case F_GETLK:
+                                               p = "GETLK";
+                                               break;
+
+                                       case F_SETLK:
+                                               p = "SETLK";
+                                               break;
+
+                                       case F_SETLKW:
+                                               p = "SETLKW";
+                                               break;
+
+                                       case F_SETLKWTIMEOUT:
+                                               p = "SETLKWTIMEOUT";
+                                               break;
+
+                                       case F_GETLKPID:
+                                               p = "GETLKPID";
+                                               break;
+
+                                       case F_OFD_GETLK:
+                                               p = "OFD_GETLK";
+                                               break;
+
+                                       case F_OFD_SETLK:
+                                               p = "OFD_SETLK";
+                                               break;
+
+                                       case F_OFD_SETLKW:
+                                               p = "OFD_SETLKW";
+                                               break;
+
+                                       case F_OFD_SETLKWTIMEOUT:
+                                               p = "OFD_SETLKWTIMEOUT";
+                                               break;
+
+                                       case F_OFD_GETLKPID:
+                                               p = "OFD_GETLKPID";
+                                               break;
+
+                                       case F_PREALLOCATE:
+                                               p = "PREALLOCATE";
+                                               break;
+
+                                       case F_SETSIZE:
+                                               p = "SETSIZE";
+                                               break;
+
+                                       case F_RDADVISE:
+                                               p = "RDADVISE";
+                                               break;
+
+                                       case F_GETPATH:
+                                               p = "GETPATH";
+                                               break;
+
+                                       case F_FULLFSYNC:
+                                               p = "FULLFSYNC";
+                                               break;
+
+                                       case F_PATHPKG_CHECK:
+                                               p = "PATHPKG_CHECK";
+                                               break;
+
+                                       case F_OPENFROM:
+                                               p = "OPENFROM";
+
+                                               if (event->arg1 == 0)
+                                                       fd = (int)event->arg2;
+                                               break;
 
-                     case FMT_FCNTL:
-                     {
-                       /*
-                        * fcntl
-                        */
-                       char *p = NULL;
-                       int  fd = -1;
+                                       case F_UNLINKFROM:
+                                               p = "UNLINKFROM";
+                                               break;
 
-                       if (arg1)
-                               clen += printf(" F=%-3d[%3d]", ti->arg1, arg1);
-                       else
-                               clen += printf(" F=%-3d", ti->arg1);
-
-                       switch(ti->arg2) {
-
-                       case F_DUPFD:
-                         p = "DUPFD";
-                         break;
-
-                       case F_GETFD:
-                         p = "GETFD";
-                         break;
-
-                       case F_SETFD:
-                         p = "SETFD";
-                         break;
-
-                       case F_GETFL:
-                         p = "GETFL";
-                         break;
-
-                       case F_SETFL:
-                         p = "SETFL";
-                         break;
-
-                       case F_GETOWN:
-                         p = "GETOWN";
-                         break;
-
-                       case F_SETOWN:
-                         p = "SETOWN";
-                         break;
-
-                       case F_GETLK:
-                         p = "GETLK";
-                         break;
-                         
-                       case F_SETLK:
-                         p = "SETLK";
-                         break;
-
-                       case F_SETLKW:
-                         p = "SETLKW";
-                         break;
-                         
-                       case F_PREALLOCATE:
-                         p = "PREALLOCATE";
-                         break;
-
-                       case F_SETSIZE:
-                         p = "SETSIZE";
-                         break;
-
-                       case F_RDADVISE:
-                         p = "RDADVISE";
-                         break;
-
-                       case F_GETPATH:
-                         p = "GETPATH";
-                         break;
-
-                       case F_FULLFSYNC:
-                         p = "FULLFSYNC";
-                         break;
-
-                       case F_PATHPKG_CHECK:
-                         p = "PATHPKG_CHECK";
-                         break;
-
-                       case F_OPENFROM:
-                         p = "OPENFROM";
-                         
-                         if (arg1 == 0)
-                                 fd = arg2;
-                         break;
-
-                       case F_UNLINKFROM:
-                         p = "UNLINKFROM";
-                         break;
-
-                       case F_CHECK_OPENEVT:
-                         p = "CHECK_OPENEVT";
-                         break;
-
-                       case F_NOCACHE:
-                         if (ti->arg3)
-                                 p = "CACHING OFF";
-                         else
-                                 p = "CACHING ON";
-                         break;
-
-                       case F_GLOBAL_NOCACHE:
-                         if (ti->arg3)
-                                 p = "CACHING OFF (GLOBAL)";
-                         else
-                                 p = "CACHING ON (GLOBAL)";
-                         break;
+                                       case F_CHECK_OPENEVT:
+                                               p = "CHECK_OPENEVT";
+                                               break;
+
+                                       case F_NOCACHE:
+                                               if (ti->arg3)
+                                                       p = "CACHING OFF";
+                                               else
+                                                       p = "CACHING ON";
+                                               break;
+
+                                       case F_GLOBAL_NOCACHE:
+                                               if (ti->arg3)
+                                                       p = "CACHING OFF (GLOBAL)";
+                                               else
+                                                       p = "CACHING ON (GLOBAL)";
+                                               break;
 
+                               }
+
+                               if (p) {
+                                       if (fd == -1)
+                                               clen += printf(" <%s>", p);
+                                       else
+                                               clen += printf(" <%s> F=%d", p, fd);
+                               } else {
+                                       clen += printf(" <CMD=%d>", (int)ti->arg2);
+                               }
+
+                               break;
                        }
-                       if (p) {
-                               if (fd == -1)
-                                       clen += printf(" <%s>", p);
+
+                       case FMT_IOCTL:
+                       {
+                               /*
+                                * ioctl
+                                */
+                               if (event->arg1)
+                                       clen += printf(" F=%-3d[%3d]", (int)ti->arg1, (int)event->arg1);
                                else
-                                       clen += printf(" <%s> F=%d", p, fd);
-                       } else
-                               clen += printf(" <CMD=%d>", ti->arg2);
+                                       clen += printf(" F=%-3d", (int)ti->arg1);
 
-                       break;
-                     }
+                               clen += printf(" <CMD=0x%x>", (int)ti->arg2);
 
-                     case FMT_IOCTL:
-                     {
-                       /*
-                        * fcntl
-                        */
-                       if (arg1)
-                               clen += printf(" F=%-3d[%3d]", ti->arg1, arg1);
-                       else
-                               clen += printf(" F=%-3d", ti->arg1);
+                               break;
+                       }
 
-                       clen += printf(" <CMD=0x%x>", ti->arg2);
+                       case FMT_IOCTL_SYNC:
+                       {
+                               /*
+                                * ioctl
+                                */
+                               clen += printf(" <DKIOCSYNCHRONIZE>  B=%" PRIu64 " /dev/%s", (uint64_t)event->arg3, find_disk_name(event->arg1));
 
-                       break;
-                     }
+                               break;
+                       }
 
-                     case FMT_SPEC_IOCTL:
-                     {
-                       /*
-                        * fcntl
-                        */
-                       clen += printf(" <DKIOCSYNCHRONIZECACHE>    /dev/%s", find_disk_name(arg1));
+                       case FMT_IOCTL_SYNCCACHE:
+                       {
+                               /*
+                                * ioctl
+                                */
+                               clen += printf(" <DKIOCSYNCHRONIZECACHE>  /dev/%s", find_disk_name(event->arg1));
 
-                       break;
-                     }
+                               break;
+                       }
 
-                     case FMT_SELECT:
-                       /*
-                        * select
-                        */
-                       if (arg1)
-                               clen += printf("      [%3d]", arg1);
-                       else
-                               clen += printf("        S=%-3d", arg2);
+                       case FMT_IOCTL_UNMAP:
+                       {
+                               /*
+                                * ioctl
+                                */
+                               clen += printf(" <DKIOCUNMAP>             /dev/%s", find_disk_name(event->arg1));
 
-                       break;
+                               break;
+                       }
 
-                     case FMT_LSEEK:
-                     case FMT_PREAD:
-                       /*
-                        * pread, pwrite, lseek
-                        */
-                       clen += printf(" F=%-3d", ti->arg1);
+                       case FMT_UNMAP_INFO:
+                       {
+                               clen += printf(" D=0x%8.8" PRIx64 "  B=0x%-6" PRIx64 " /dev/%s", (uint64_t)event->arg2, (uint64_t)event->arg3, find_disk_name(event->arg1));
+
+                               break;
+                       }
+
+                       case FMT_SELECT:
+                               /*
+                                * select
+                                */
+                               if (event->arg1)
+                                       clen += printf("      [%3d]", (int)event->arg1);
+                               else
+                                       clen += printf("        S=%-3d", (int)event->arg2);
+
+                               break;
+
+                       case FMT_LSEEK:
+                       case FMT_PREAD:
+                               /*
+                                * pread, pwrite, lseek
+                                */
+                               clen += printf(" F=%-3d", (int)ti->arg1);
+
+                               if (event->arg1) {
+                                       clen += printf("[%3d]  ", (int)event->arg1);
+                               } else {
+                                       if (format == FMT_PREAD)
+                                               clen += printf("  B=0x%-8" PRIx64 " ", (uint64_t)event->arg2);
+                                       else
+                                               clen += printf("  ");
+                               }
 
-                       if (arg1)
-                               clen += printf("[%3d]  ", arg1);
-                       else {
-                               if (format == FMT_PREAD)
-                                       clen += printf("  B=0x%-8x ", arg2);
+                               if (format == FMT_PREAD)
+                                       offset_reassembled = (((off_t)(unsigned int)(ti->arg3)) << 32) | (unsigned int)(ti->arg4);
                                else
-                                       clen += printf("  ");
-                       }       
-                       if (format == FMT_PREAD)
-                               offset_reassembled = (((off_t)(unsigned int)(ti->arg3)) << 32) | (unsigned int)(ti->arg4);
-                       else
 #ifdef __ppc__
-                               offset_reassembled = (((off_t)(unsigned int)(arg2)) << 32) | (unsigned int)(arg3);
+                                       offset_reassembled = (((off_t)(unsigned int)(arg2)) << 32) | (unsigned int)(arg3);
 #else
-                               offset_reassembled = (((off_t)(unsigned int)(arg3)) << 32) | (unsigned int)(arg2);
+                                       offset_reassembled = (((off_t)(unsigned int)(event->arg3)) << 32) | (unsigned int)(event->arg2);
 #endif
-                       clen += clip_64bit("O=", offset_reassembled);
 
-                       if (format == FMT_LSEEK) {
-                               char *mode;
+                               clen += clip_64bit("O=", offset_reassembled);
 
-                               if (ti->arg4 == SEEK_SET)
-                                       mode = "SEEK_SET";
-                               else if (ti->arg4 == SEEK_CUR)
-                                       mode = "SEEK_CUR";
-                               else if (ti->arg4 == SEEK_END)
-                                       mode = "SEEK_END";
-                               else
-                                       mode = "UNKNOWN";
-                               
-                               clen += printf(" <%s>", mode);
-                       }
-                       break;
+                               if (format == FMT_LSEEK) {
+                                       char *mode;
 
-                     case FMT_MMAP:
-                       /*
-                        * mmap
-                        */
-                       clen += printf(" F=%-3d  ", ti->arg1);
+                                       if (ti->arg3 == SEEK_SET)
+                                               mode = "SEEK_SET";
+                                       else if (ti->arg3 == SEEK_CUR)
+                                               mode = "SEEK_CUR";
+                                       else if (ti->arg3 == SEEK_END)
+                                               mode = "SEEK_END";
+                                       else
+                                               mode = "UNKNOWN";
 
-                       if (arg1)
-                               clen += printf("[%3d]  ", arg1);
-                       else {
+                                       clen += printf(" <%s>", mode);
+                               }
 
-                               user_addr = (((off_t)(unsigned int)(ti->arg2)) << 32) | (unsigned int)(ti->arg3);
+                               break;
 
-                               clen += clip_64bit("A=", user_addr);
+                       case FMT_MMAP:
+                               /*
+                                * mmap
+                                */
+                               clen += printf(" F=%-3d  ", (int)ti->arg1);
 
-                               offset_reassembled = (((off_t)(unsigned int)(ti->arg6)) << 32) | (unsigned int)(ti->arg7);
+                               if (event->arg1) {
+                                       clen += printf("[%3d]  ", (int)event->arg1);
+                               } else {
+                                       user_addr = (((off_t)(unsigned int)(ti->arg2)) << 32) | (unsigned int)(ti->arg3);
 
-                               clen += clip_64bit("O=", offset_reassembled);
+                                       clen += clip_64bit("A=", user_addr);
 
-                               user_size = (((off_t)(unsigned int)(ti->arg4)) << 32) | (unsigned int)(ti->arg5);
+                                       offset_reassembled = (((off_t)(unsigned int)(ti->arg6)) << 32) | (unsigned int)(ti->arg7);
 
-                               clen += printf("B=0x%-16qx", user_size);
-                               
-                               clen += printf(" <");
+                                       clen += clip_64bit("O=", offset_reassembled);
 
-                               if (ti->arg8 & PROT_READ)
-                                       clen += printf("READ");
+                                       user_size = (((off_t)(unsigned int)(ti->arg4)) << 32) | (unsigned int)(ti->arg5);
 
-                               if (ti->arg8 & PROT_WRITE)
-                                       clen += printf("|WRITE");
+                                       clen += printf("B=0x%-16qx", user_size);
 
-                               if (ti->arg8 & PROT_EXEC)
-                                       clen += printf("|EXEC");
+                                       clen += printf(" <");
 
-                               clen += printf(">");
-                       }
-                       break;
+                                       if (ti->arg8 & PROT_READ)
+                                               clen += printf("READ");
 
-                     case FMT_TRUNC:
-                     case FMT_FTRUNC:
-                       /*
-                        * ftruncate, truncate
-                        */
-                       if (format == FMT_FTRUNC)
-                               clen += printf(" F=%-3d", ti->arg1);
-                       else
-                               clen += printf("      ");
+                                       if (ti->arg8 & PROT_WRITE)
+                                               clen += printf("|WRITE");
+
+                                       if (ti->arg8 & PROT_EXEC)
+                                               clen += printf("|EXEC");
+
+                                       clen += printf(">");
+                               }
+
+                               break;
+
+                       case FMT_TRUNC:
+                       case FMT_FTRUNC:
+                               /*
+                                * ftruncate, truncate
+                                */
+                               if (format == FMT_FTRUNC)
+                                       clen += printf(" F=%-3d", (int)ti->arg1);
+                               else
+                                       clen += printf("      ");
 
-                       if (arg1)
-                               clen += printf("[%3d]", arg1);
+                               if (event->arg1)
+                                       clen += printf("[%3d]", (int)event->arg1);
 
 #ifdef __ppc__
-                       offset_reassembled = (((off_t)(unsigned int)(ti->arg2)) << 32) | (unsigned int)(ti->arg3);
+                               offset_reassembled = (((off_t)(unsigned int)(ti->arg2)) << 32) | (unsigned int)(ti->arg3);
 #else
-                       offset_reassembled = (((off_t)(unsigned int)(ti->arg3)) << 32) | (unsigned int)(ti->arg2);
+                               offset_reassembled = (((off_t)(unsigned int)(ti->arg3)) << 32) | (unsigned int)(ti->arg2);
 #endif
-                       clen += clip_64bit("  O=", offset_reassembled);
+                               clen += clip_64bit("  O=", offset_reassembled);
 
-                       nopadding = 1;
-                       break;
+                               nopadding = 1;
+                               break;
 
-                     case FMT_FCHFLAGS:
-                     case FMT_CHFLAGS:
-                     {
-                       /*
-                        * fchflags, chflags
-                        */
-                       int mlen = 0;
+                       case FMT_FCHFLAGS:
+                       case FMT_CHFLAGS:
+                       {
+                               /*
+                                * fchflags, chflags
+                                */
+                               int mlen = 0;
+
+                               if (format == FMT_FCHFLAGS) {
+                                       if (event->arg1)
+                                               clen += printf(" F=%-3d[%3d]", (int)ti->arg1, (int)event->arg1);
+                                       else
+                                               clen += printf(" F=%-3d", (int)ti->arg1);
+                               } else {
+                                       if (event->arg1)
+                                               clen += printf(" [%3d] ", (int)event->arg1);
+                               }
 
-                       if (format == FMT_FCHFLAGS) {
-                               if (arg1)
-                                       clen += printf(" F=%-3d[%3d]", ti->arg1, arg1);
-                               else
-                                       clen += printf(" F=%-3d", ti->arg1);
-                       } else {
-                               if (arg1)
-                                       clen += printf(" [%3d] ", arg1);
+                               buf[mlen++] = ' ';
+                               buf[mlen++] = '<';
+
+                               if (ti->arg2 & UF_NODUMP)
+                                       mlen += sprintf(&buf[mlen], "UF_NODUMP | ");
+                               if (ti->arg2 & UF_IMMUTABLE)
+                                       mlen += sprintf(&buf[mlen], "UF_IMMUTABLE | ");
+                               if (ti->arg2 & UF_APPEND)
+                                       mlen += sprintf(&buf[mlen], "UF_APPEND | ");
+                               if (ti->arg2 & UF_OPAQUE)
+                                       mlen += sprintf(&buf[mlen], "UF_OPAQUE | ");
+                               if (ti->arg2 & SF_ARCHIVED)
+                                       mlen += sprintf(&buf[mlen], "SF_ARCHIVED | ");
+                               if (ti->arg2 & SF_IMMUTABLE)
+                                       mlen += sprintf(&buf[mlen], "SF_IMMUTABLE | ");
+                               if (ti->arg2 & SF_APPEND)
+                                       mlen += sprintf(&buf[mlen], "SF_APPEND | ");
+
+                               if (ti->arg2 == 0)
+                                       mlen += sprintf(&buf[mlen], "CLEAR_ALL_FLAGS | ");
+                               else if (ti->arg2 & ~(UF_NODUMP | UF_IMMUTABLE | UF_APPEND | SF_ARCHIVED | SF_IMMUTABLE | SF_APPEND))
+                                       mlen += sprintf(&buf[mlen], "UNKNOWN | ");
+
+                               if (mlen >= 3)
+                                       mlen -= 3;
+
+                               buf[mlen++] = '>';
+                               buf[mlen] = '\0';
+
+                               if (mlen < 19) {
+                                       memset(&buf[mlen], ' ', 19 - mlen);
+                                       mlen = 19;
+                                       buf[mlen] = '\0';
+                               }
+
+                               clen += printf("%s", buf);
+
+                               nopadding = 1;
+                               break;
                        }
-                       buf[mlen++] = ' ';
-                       buf[mlen++] = '<';
-
-                       if (ti->arg2 & UF_NODUMP)
-                               mlen += sprintf(&buf[mlen], "UF_NODUMP | ");
-                       if (ti->arg2 & UF_IMMUTABLE)
-                               mlen += sprintf(&buf[mlen], "UF_IMMUTABLE | ");
-                       if (ti->arg2 & UF_APPEND)
-                               mlen += sprintf(&buf[mlen], "UF_APPEND | ");
-                       if (ti->arg2 & UF_OPAQUE)
-                               mlen += sprintf(&buf[mlen], "UF_OPAQUE | ");
-                       if (ti->arg2 & SF_ARCHIVED)
-                               mlen += sprintf(&buf[mlen], "SF_ARCHIVED | ");
-                       if (ti->arg2 & SF_IMMUTABLE)
-                               mlen += sprintf(&buf[mlen], "SF_IMMUTABLE | ");
-                       if (ti->arg2 & SF_APPEND)
-                               mlen += sprintf(&buf[mlen], "SF_APPEND | ");
-                       
-                       if (ti->arg2 == 0)
-                               mlen += sprintf(&buf[mlen], "CLEAR_ALL_FLAGS | ");
-                       else if (ti->arg2 & ~(UF_NODUMP | UF_IMMUTABLE | UF_APPEND | SF_ARCHIVED | SF_IMMUTABLE | SF_APPEND))
-                               mlen += sprintf(&buf[mlen], "UNKNOWN | ");
-
-                       if (mlen >= 3)
-                               mlen -= 3;
-
-                       buf[mlen++] = '>';
-                       buf[mlen] = '\0';
-
-                       if (mlen < 19) {
-                               memset(&buf[mlen], ' ', 19 - mlen);
-                               mlen = 19;
+
+                       case FMT_UMASK:
+                       case FMT_FCHMOD:
+                       case FMT_FCHMOD_EXT:
+                       case FMT_CHMOD:
+                       case FMT_CHMOD_EXT:
+                       case FMT_CHMODAT:
+                       {
+                               /*
+                                * fchmod, fchmod_extended, chmod, chmod_extended
+                                */
+                               uint64_t mode;
+
+                               if (format == FMT_FCHMOD || format == FMT_FCHMOD_EXT) {
+                                       if (event->arg1)
+                                               clen += printf(" F=%-3d[%3d] ", (int)ti->arg1, (int)event->arg1);
+                                       else
+                                               clen += printf(" F=%-3d ", (int)ti->arg1);
+                               } else {
+                                       if (event->arg1)
+                                               clen += printf(" [%3d] ", (int)event->arg1);
+                                       else
+                                               clen += printf(" ");
+                               }
+
+                               if (format == FMT_UMASK)
+                                       mode = ti->arg1;
+                               else if (format == FMT_FCHMOD || format == FMT_CHMOD || format == FMT_CHMODAT)
+                                       mode = ti->arg2;
+                               else
+                                       mode = ti->arg4;
+
+                               get_mode_string(mode, &buf[0]);
+
+                               if (event->arg1 == 0)
+                                       clen += printf("<%s>      ", buf);
+                               else
+                                       clen += printf("<%s>", buf);
+                               break;
                        }
-                       clen += printf("%s", buf);
 
-                       nopadding = 1;
-                       break;
-                     }
-
-                     case FMT_UMASK:
-                     case FMT_FCHMOD:
-                     case FMT_FCHMOD_EXT:
-                     case FMT_CHMOD:
-                     case FMT_CHMOD_EXT:
-                     {
-                       /*
-                        * fchmod, fchmod_extended, chmod, chmod_extended
-                        */
-                       int  mode;
+                       case FMT_ACCESS:
+                       {
+                               /*
+                                * access
+                                */
+                               char mode[5];
+
+                               memset(mode, '_', 4);
+                               mode[4] = '\0';
+
+                               if (ti->arg2 & R_OK)
+                                       mode[0] = 'R';
+                               if (ti->arg2 & W_OK)
+                                       mode[1] = 'W';
+                               if (ti->arg2 & X_OK)
+                                       mode[2] = 'X';
+                               if (ti->arg2 == F_OK)
+                                       mode[3] = 'F';
+
+                               if (event->arg1)
+                                       clen += printf("      [%3d] (%s)   ", (int)event->arg1, mode);
+                               else
+                                       clen += printf("            (%s)   ", mode);
 
-                       if (format == FMT_FCHMOD || format == FMT_FCHMOD_EXT) {
-                               if (arg1)
-                                       clen += printf(" F=%-3d[%3d] ", ti->arg1, arg1);
+                               nopadding = 1;
+                               break;
+                       }
+
+                       case FMT_MOUNT:
+                       {
+                               if (event->arg1)
+                                       clen += printf("      [%3d] <FLGS=0x%" PRIx64 "> ", (int)event->arg1, ti->arg3);
                                else
-                                       clen += printf(" F=%-3d ", ti->arg1);
-                       } else {
-                               if (arg1)
-                                       clen += printf(" [%3d] ", arg1);
-                               else    
-                                       clen += printf(" ");
+                                       clen += printf("     <FLGS=0x%" PRIx64 "> ", ti->arg3);
+
+                               nopadding = 1;
+                               break;
                        }
-                       if (format == FMT_UMASK)
-                               mode = ti->arg1;
-                       else if (format == FMT_FCHMOD || format == FMT_CHMOD)
-                               mode = ti->arg2;
-                       else
-                               mode = ti->arg4;
 
-                       get_mode_string(mode, &buf[0]);
+                       case FMT_UNMOUNT:
+                       {
+                               char *mountflag;
 
-                       if (arg1 == 0)
-                               clen += printf("<%s>      ", buf);
-                       else
-                               clen += printf("<%s>", buf);
-                       break;
-                     }
+                               if (ti->arg2 & MNT_FORCE)
+                                       mountflag = "<FORCE>";
+                               else
+                                       mountflag = "";
 
-                     case FMT_ACCESS:
-                     {
-                       /*
-                        * access
-                        */
-                       char mode[4];
-                       
-                       memset(mode, '_', 4);
-                       mode[4] = '\0';
-
-                       if (ti->arg2 & R_OK)
-                               mode[0] = 'R';
-                       if (ti->arg2 & W_OK)
-                               mode[1] = 'W';
-                       if (ti->arg2 & X_OK)
-                               mode[2] = 'X';
-                       if (ti->arg2 == F_OK)
-                               mode[3] = 'F';
-
-                       if (arg1)
-                               clen += printf("      [%3d] (%s)   ", arg1, mode);
-                       else
-                               clen += printf("            (%s)   ", mode);
+                               if (event->arg1)
+                                       clen += printf("      [%3d] %s  ", (int)event->arg1, mountflag);
+                               else
+                                       clen += printf("     %s         ", mountflag);
 
-                       nopadding = 1;
-                       break;
-                     }
-
-                     case FMT_MOUNT:
-                     {
-                             if (arg1)
-                                     clen += printf("      [%3d] <FLGS=0x%x> ", arg1, ti->arg3);
-                             else
-                                     clen += printf("     <FLGS=0x%x> ", ti->arg3);
-
-                             nopadding = 1;
-                             break;
-                     }
-
-                     case FMT_UNMOUNT:
-                     {
-                             char *mountflag;
-                             
-                             if (ti->arg2 & MNT_FORCE)
-                                     mountflag = "<FORCE>";
-                             else
-                                     mountflag = "";
-
-                             if (arg1)
-                                     clen += printf("      [%3d] %s  ", arg1, mountflag);
-                             else
-                                     clen += printf("     %s         ", mountflag);
-
-                             nopadding = 1;
-                             break;
-                     }
-
-                     case FMT_OPEN:
-                     {
-                       /*
-                        * open
-                        */
-                       char mode[7];
-                 
-                       memset(mode, '_', 6);
-                       mode[6] = '\0';
-
-                       if (ti->arg2 & O_RDWR) {
-                               mode[0] = 'R';
-                               mode[1] = 'W';
-                       } else if (ti->arg2 & O_WRONLY)
-                               mode[1] = 'W';
-                       else
-                               mode[0] = 'R';
-
-                       if (ti->arg2 & O_CREAT)
-                               mode[2] = 'C';
-                         
-                       if (ti->arg2 & O_APPEND)
-                               mode[3] = 'A';
-                         
-                       if (ti->arg2 & O_TRUNC)
-                               mode[4] = 'T';
-                         
-                       if (ti->arg2 & O_EXCL)
-                               mode[5] = 'E';
-
-                       if (arg1)
-                               clen += printf("      [%3d] (%s) ", arg1, mode);
-                       else
-                               clen += printf(" F=%-3d      (%s) ", arg2, mode);
+                               nopadding = 1;
+                               break;
+                       }
 
-                       nopadding = 1;
-                       break;
-                     }
+                       case FMT_OPEN:
+                               clen += print_open(event, ti->arg2);
+                               nopadding = 1;
+                               break;
 
-                     case FMT_SOCKET:
-                     {
-                       /*
-                        * socket
-                        * 
-                        */
-                       char *domain;
-                       char *type;
-                       
-                       switch (ti->arg1) {
+                       case FMT_OPENAT:
+                               clen += print_open(event, ti->arg3);
+                               nopadding = 1;
+                               break;
 
-                       case AF_UNIX:
-                         domain = "AF_UNIX";
-                         break;
+                       case FMT_GUARDED_OPEN:
+                               clen += print_open(event, ti->arg4);
+                               nopadding = 1;
+                               break;
 
-                       case AF_INET:
-                         domain = "AF_INET";
-                         break;
+                       case FMT_SOCKET:
+                       {
+                               /*
+                                * socket
+                                *
+                                */
+                               char *domain;
+                               char *type;
 
-                       case AF_ISO:
-                         domain = "AF_ISO";
-                         break;
+                               switch (ti->arg1) {
+                                       case AF_UNIX:
+                                               domain = "AF_UNIX";
+                                               break;
 
-                       case AF_NS:
-                         domain = "AF_NS";
-                         break;
+                                       case AF_INET:
+                                               domain = "AF_INET";
+                                               break;
 
-                       case AF_IMPLINK:
-                         domain = "AF_IMPLINK";
-                         break;
+                                       case AF_ISO:
+                                               domain = "AF_ISO";
+                                               break;
 
-                       default:
-                         domain = "UNKNOWN";
-                         break;
-                       }
+                                       case AF_NS:
+                                               domain = "AF_NS";
+                                               break;
 
-                       switch (ti->arg2) {
-                         
-                       case SOCK_STREAM:
-                         type = "SOCK_STREAM";
-                         break;
+                                       case AF_IMPLINK:
+                                               domain = "AF_IMPLINK";
+                                               break;
 
-                       case SOCK_DGRAM:
-                         type = "SOCK_DGRAM";
-                         break;
+                                       default:
+                                               domain = "UNKNOWN";
+                                               break;
+                               }
 
-                       case SOCK_RAW:
-                         type = "SOCK_RAW";
-                         break;
+                               switch (ti->arg2) {
+                                       case SOCK_STREAM:
+                                               type = "SOCK_STREAM";
+                                               break;
+                                       case SOCK_DGRAM:
+                                               type = "SOCK_DGRAM";
+                                               break;
+                                       case SOCK_RAW:
+                                               type = "SOCK_RAW";
+                                               break;
+                                       default:
+                                               type = "UNKNOWN";
+                                               break;
+                               }
 
-                       case SOCK_SEQPACKET:
-                         type = "SOCK_SEQPACKET";
-                         break;
+                               if (event->arg1)
+                                       clen += printf("      [%3d] <%s, %s, 0x%" PRIx64 ">", (int)event->arg1, domain, type, ti->arg3);
+                               else
+                                       clen += printf(" F=%-3d      <%s, %s, 0x%" PRIx64 ">", (int)event->arg2, domain, type, ti->arg3);
 
-                       case SOCK_RDM:
-                         type = "SOCK_RDM";
-                         break;
-                         
-                       default:
-                         type = "UNKNOWN";
-                         break;
+                               break;
                        }
 
-                       if (arg1)
-                               clen += printf("      [%3d] <%s, %s, 0x%x>", arg1, domain, type, ti->arg3);
-                       else
-                               clen += printf(" F=%-3d      <%s, %s, 0x%x>", arg2, domain, type, ti->arg3);
-                       break;
-                     }
-
-                     case FMT_AIO_FSYNC:
-                     {
-                       /*
-                        * aio_fsync            [errno]   AIOCBP   OP
-                        */
-                       char *op;
+                       case FMT_AIO_FSYNC:
+                       {
+                               /*
+                                * aio_fsync            [errno]   AIOCBP   OP
+                                */
+                               char *op;
 
-                       if (ti->arg1 == O_SYNC || ti->arg1 == 0)
-                               op = "AIO_FSYNC";
+                               if (ti->arg1 == O_SYNC || ti->arg1 == 0)
+                                       op = "AIO_FSYNC";
 #if O_DSYNC
-                       else if (ti->arg1 == O_DSYNC)
-                               op = "AIO_DSYNC";
-#endif                 
-                       else
-                               op = "UNKNOWN";
+                               else if (ti->arg1 == O_DSYNC)
+                                       op = "AIO_DSYNC";
+#endif
+                               else
+                                       op = "UNKNOWN";
 
-                       if (arg1)
-                               clen += printf("      [%3d] P=0x%8.8x  <%s>", arg1, ti->arg2, op);
-                       else
-                               clen += printf("            P=0x%8.8x  <%s>", ti->arg2, op);
-                       break;
-                     }
+                               if (event->arg1)
+                                       clen += printf("      [%3d] P=0x%8.8" PRIx64 "  <%s>", (int)event->arg1, ti->arg2, op);
+                               else
+                                       clen += printf("            P=0x%8.8" PRIx64 "  <%s>", ti->arg2, op);
 
-                     case FMT_AIO_RETURN:
-                       /*
-                        * aio_return           [errno]   AIOCBP   IOSIZE
-                        */
-                       if (arg1)
-                               clen += printf("      [%3d] P=0x%8.8x", arg1, ti->arg1);
-                       else
-                               clen += printf("            P=0x%8.8x  B=0x%-8x", ti->arg1, arg2);
-                       break;
+                               break;
+                       }
 
-                     case FMT_AIO_SUSPEND:
-                       /*
-                        * aio_suspend          [errno]   NENTS
-                        */
-                       if (arg1)
-                               clen += printf("      [%3d] N=%d", arg1, ti->arg2);
-                       else
-                               clen += printf("            N=%d", ti->arg2);
-                       break;
+                       case FMT_AIO_RETURN:
+                               /*
+                                * aio_return           [errno]   AIOCBP   IOSIZE
+                                */
+                               if (event->arg1)
+                                       clen += printf("      [%3d] P=0x%8.8" PRIx64, (int)event->arg1, ti->arg1);
+                               else
+                                       clen += printf("            P=0x%8.8" PRIx64 "  B=0x%-8" PRIx64, ti->arg1, (uint64_t)event->arg2);
+
+                               break;
 
-                     case FMT_AIO_CANCEL:
-                       /*
-                        * aio_cancel           [errno]   FD or AIOCBP (if non-null)
-                        */
-                       if (ti->arg2) {
-                               if (arg1)
-                                       clen += printf("      [%3d] P=0x%8.8x", arg1, ti->arg2);
+                       case FMT_AIO_SUSPEND:
+                               /*
+                                * aio_suspend          [errno]   NENTS
+                                */
+                               if (event->arg1)
+                                       clen += printf("      [%3d] N=%d", (int)event->arg1, (int)ti->arg2);
                                else
-                                       clen += printf("            P=0x%8.8x", ti->arg2);
-                       } else {
-                               if (arg1)
-                                       clen += printf(" F=%-3d[%3d]", ti->arg1, arg1);
+                                       clen += printf("            N=%d", (int)ti->arg2);
+
+                               break;
+
+                       case FMT_AIO_CANCEL:
+                               /*
+                                * aio_cancel           [errno]   FD or AIOCBP (if non-null)
+                                */
+                               if (ti->arg2) {
+                                       if (event->arg1)
+                                               clen += printf("      [%3d] P=0x%8." PRIx64, (int)event->arg1, ti->arg2);
+                                       else
+                                               clen += printf("            P=0x%8.8" PRIx64, ti->arg2);
+                               } else {
+                                       if (event->arg1)
+                                               clen += printf(" F=%-3d[%3d]", (int)ti->arg1, (int)event->arg1);
+                                       else
+                                               clen += printf(" F=%-3d", (int)ti->arg1);
+                               }
+
+                               break;
+
+                       case FMT_AIO:
+                               /*
+                                * aio_error, aio_read, aio_write       [errno]  AIOCBP
+                                */
+                               if (event->arg1)
+                                       clen += printf("      [%3d] P=0x%8.8" PRIx64, (int)event->arg1, ti->arg1);
                                else
-                                       clen += printf(" F=%-3d", ti->arg1);
-                       }
-                       break;
+                                       clen += printf("            P=0x%8.8" PRIx64, ti->arg1);
 
-                     case FMT_AIO:
-                       /*
-                        * aio_error, aio_read, aio_write       [errno]  AIOCBP
-                        */
-                       if (arg1)
-                               clen += printf("      [%3d] P=0x%8.8x", arg1, ti->arg1);
-                       else
-                               clen += printf("            P=0x%8.8x", ti->arg1);
-                       break;
+                               break;
 
-                     case FMT_LIO_LISTIO:
-                     {
-                       /*
-                        * lio_listio           [errno]   NENTS  MODE
-                        */
-                       char *op;
+                       case FMT_LIO_LISTIO: {
+                               /*
+                                * lio_listio           [errno]   NENTS  MODE
+                                */
+                               char *op;
 
-                       if (ti->arg1 == LIO_NOWAIT)
-                               op = "LIO_NOWAIT";
-                       else if (ti->arg1 == LIO_WAIT)
-                               op = "LIO_WAIT";
-                       else
-                               op = "UNKNOWN";
+                               if (ti->arg1 == LIO_NOWAIT)
+                                       op = "LIO_NOWAIT";
+                               else if (ti->arg1 == LIO_WAIT)
+                                       op = "LIO_WAIT";
+                               else
+                                       op = "UNKNOWN";
 
-                       if (arg1)
-                               clen += printf("      [%3d] N=%d  <%s>", arg1, ti->arg3, op);
-                       else
-                               clen += printf("            N=%d  <%s>", ti->arg3, op);
-                       break;
-                     }
+                               if (event->arg1)
+                                       clen += printf("      [%3d] N=%d  <%s>", (int)event->arg1, (int)ti->arg3, op);
+                               else
+                                       clen += printf("            N=%d  <%s>", (int)ti->arg3, op);
 
+                               break;
+                       }
                }
        }
 
@@ -3768,555 +2643,567 @@ format_print(struct th_info *ti, char *sc_name, uintptr_t thread, int type, int
         * Calculate space available to print pathname
         */
        if (columns > MAXCOLS || wideflag)
-               clen =  columns - (clen + 14 + 20 + 11);
+               clen = columns - (clen + 14 + 20 + 11);
        else
-               clen =  columns - (clen + 14 + 12);
-
-       if (class != FILEMGR_CLASS && !nopadding)
-               clen -= 3;
-
-       if (framework_name)
-               len = sprintf(&buf[0], " %s %s ", framework_type, framework_name);
-       else if (*pathname != '\0') {
-               len = sprintf(&buf[0], " %s ", pathname);
+               clen = columns - (clen + 14 + 12);
+
+       if (!nopadding)
+               clen -= 3;
+
+       if (framework_name) {
+               len = sprintf(&buf[0], " %s %s ", framework_type, framework_name);
+       } else if (*pathname != '\0') {
+               switch(format) {
+                       case FMT_AT:
+                       case FMT_OPENAT:
+                       case FMT_CHMODAT:
+                               len = sprintf(&buf[0], " [%d]/%s ", (int)ti->arg1, pathname);
+                               break;
+                       case FMT_RENAMEAT:
+                               len = sprintf(&buf[0], " [%d]/%s ", (int)ti->arg3, pathname);
+                               break;
+                       default:
+                               len = sprintf(&buf[0], " %s ", pathname);
+               }
 
-               if (format == FMT_MOUNT && ti->pathname2[0]) {
+               if (format == FMT_MOUNT && ti->pathname2[0] != '\0') {
                        int     len2;
 
                        memset(&buf[len], ' ', 2);
 
-                       len2 = sprintf(&buf[len+2], " %s ", (char *)ti->pathname2);
+                       len2 = sprintf(&buf[len+2], " %s ", ti->pathname2);
                        len = len + 2 + len2;
                }
-       } else
-               len = 0;
+       } else {
+               len = 0;
+       }
 
        if (clen > len) {
-               /* 
+               /*
                 * Add null padding if column length
                 * is wider than the pathname length.
                 */
-               memset(&buf[len], ' ', clen - len);
+               memset(&buf[len], ' ', clen - len);
                buf[clen] = '\0';
 
                pathname = buf;
-
        } else if (clen == len) {
-               pathname = buf;
-
+               pathname = buf;
        } else if ((clen > 0) && (clen < len)) {
-               /*
+               /*
                 * This prints the tail end of the pathname
                 */
-               buf[len-clen] = ' ';
+               buf[len-clen] = ' ';
 
                pathname = &buf[len - clen];
-
        } else {
-               pathname = "";
+               pathname = "";
        }
-       
+
        /*
-        * fudge some additional system call overhead 
+        * fudge some additional system call overhead
         * that currently isn't tracked... this also
-        * insures that we see a minimum of 1 us for 
+        * insures that we see a minimum of 1 us for
         * an elapsed time
         */
-       usecs = (unsigned long)(((now - stime) + (divisor-1)) / divisor);
-       secs = usecs / 1000000;
-       usecs -= secs * 1000000;
+       usecs = (mach_to_nano(now - stime) + (NSEC_PER_USEC - 1)) / NSEC_PER_USEC;
+       secs = usecs / USEC_PER_SEC;
+       usecs -= secs * USEC_PER_SEC;
 
-       if (class != FILEMGR_CLASS && !nopadding)
-               p1 = "   ";
+       if (!nopadding)
+               p1 = "   ";
        else
-               p1 = "";
-              
+               p1 = "";
+
        if (waited)
-               p2 = " W";
+               p2 = " W";
        else
-               p2 = "  ";
+               p2 = "  ";
 
        if (columns > MAXCOLS || wideflag)
-               printf("%s%s %3ld.%06ld%s %s.%d\n", p1, pathname, (unsigned long)secs, (unsigned long)usecs, p2, command_name, (int)thread);
+               printf("%s%s %3llu.%06llu%s %s.%" PRIu64 "\n", p1, pathname, secs, usecs, p2, command_name, threadid);
        else
-               printf("%s%s %3ld.%06ld%s %-12.12s\n", p1, pathname, (unsigned long)secs, (unsigned long)usecs, p2, command_name);
+               printf("%s%s %3llu.%06llu%s %-12.12s\n", p1, pathname, secs, usecs, p2, command_name);
+
+       if (!RAW_flag)
+               fflush(stdout);
 }
 
+#pragma mark metadata info hash routines
+
+#define VN_HASH_SIZE   16384
+#define VN_HASH_MASK   (VN_HASH_SIZE - 1)
+
+typedef struct meta_info {
+       struct meta_info *m_next;
+       uint64_t m_blkno;
+       char m_name[MAXPATHLEN];
+} *meta_info_t;
+
+meta_info_t m_info_hash[VN_HASH_SIZE];
 
 void
-delete_event(th_info_t ti_to_delete) {
-       th_info_t       ti;
-       th_info_t       ti_prev;
-       int             hashid;
+meta_add_name(uint64_t blockno, const char *pathname)
+{
+       meta_info_t     mi;
+       int hashid;
 
-       hashid = ti_to_delete->thread & HASH_MASK;
+       hashid = blockno & VN_HASH_MASK;
 
-       if ((ti = th_info_hash[hashid])) {
-               if (ti == ti_to_delete)
-                       th_info_hash[hashid] = ti->next;
-                else {
-                        ti_prev = ti;
+       for (mi = m_info_hash[hashid]; mi; mi = mi->m_next) {
+               if (mi->m_blkno == blockno)
+                       break;
+       }
 
-                       for (ti = ti->next; ti; ti = ti->next) {
-                                if (ti == ti_to_delete) {
-                                       ti_prev->next = ti->next;
-                                        break;
-                                }
-                                ti_prev = ti;
-                       }
-                }
-                if (ti) {
-                        ti->next = th_info_freelist;
-                        th_info_freelist = ti;
-                }
-        }
+       if (mi == NULL) {
+               mi = malloc(sizeof (struct meta_info));
+
+               mi->m_next = m_info_hash[hashid];
+               m_info_hash[hashid] = mi;
+               mi->m_blkno = blockno;
+       }
+
+       strncpy(mi->m_name, pathname, sizeof (mi->m_name));
 }
 
-th_info_t
-add_event(uintptr_t thread, int type) {
-       th_info_t       ti;
+const char *
+meta_find_name(uint64_t blockno)
+{
+       meta_info_t     mi;
        int             hashid;
 
+       hashid = blockno & VN_HASH_MASK;
+
+       for (mi = m_info_hash[hashid]; mi; mi = mi->m_next) {
+               if (mi->m_blkno == blockno)
+                       return mi->m_name;
+       }
+
+       return "";
+}
+
+void
+meta_delete_all(void)
+{
+       meta_info_t mi, next;
+       int i;
+
+       for (i = 0; i < HASH_MASK; i++) {
+               for (mi = m_info_hash[i]; mi; mi = next) {
+                       next = mi->m_next;
+
+                       free(mi);
+               }
+
+               m_info_hash[i] = NULL;
+       }
+}
+
+#pragma mark event ("thread info") routines
+
+th_info_t th_info_hash[HASH_SIZE];
+th_info_t th_info_freelist;
+
+static th_info_t
+add_event(ktrace_event_t event, int type)
+{
+       th_info_t ti;
+       int hashid;
+       uint64_t eventid;
+
        if ((ti = th_info_freelist))
                th_info_freelist = ti->next;
        else
-               ti = (th_info_t)malloc(sizeof(struct th_info));
+               ti = malloc(sizeof (struct th_info));
 
-       hashid = thread & HASH_MASK;
+       bzero(ti, sizeof (struct th_info));
+
+       hashid = event->threadid & HASH_MASK;
 
        ti->next = th_info_hash[hashid];
        th_info_hash[hashid] = ti;
 
-       ti->thread = thread;
-       ti->type = type;
+       eventid = event->debugid & KDBG_EVENTID_MASK;
 
-       ti->waited = 0;
-       ti->in_filemgr = 0;
-       ti->pathptr = ti->pathname;
-       ti->pathname[0] = 0;
-       ti->pathname2[0] = 0;
+       if (eventid == BSC_execve || eventid == BSC_posix_spawn) {
+               const char *command;
 
-       return (ti);
+               command = ktrace_get_execname_for_thread(s, event->threadid);
+
+               if (!command)
+                       command = "";
+
+               strncpy(ti->command, command, sizeof (ti->command));
+               ti->command[MAXCOMLEN] = '\0';
+       }
+
+       ti->thread = event->threadid;
+       ti->type = type;
+
+       return ti;
 }
 
 th_info_t
-find_event(uintptr_t thread, int type) {
-        th_info_t      ti;
-       int             hashid;
+event_find(uint64_t thread, int type)
+{
+       th_info_t ti;
+       int hashid;
 
        hashid = thread & HASH_MASK;
 
        for (ti = th_info_hash[hashid]; ti; ti = ti->next) {
                if (ti->thread == thread) {
-                       if (type == ti->type)
-                               return (ti);
-                       if (ti->in_filemgr) {
-                               if (type == -1)
-                                       return (ti);
-                               continue;
-                       }
+                       if (type == ti->type)
+                               return ti;
+
                        if (type == 0)
-                               return (ti);
+                               return ti;
                }
        }
-       return ((th_info_t) 0);
-}
 
-void
-delete_all_events() {
-        th_info_t      ti = 0;
-        th_info_t      ti_next = 0;
-        int             i;
-
-        for (i = 0; i < HASH_SIZE; i++) {
-
-                for (ti = th_info_hash[i]; ti; ti = ti_next) {
-                        ti_next = ti->next;
-                        ti->next = th_info_freelist;
-                        th_info_freelist = ti;
-                }
-                th_info_hash[i] = 0;
-        }
+       return NULL;
 }
 
-
 void
-mark_thread_waited(uintptr_t thread) {
-        th_info_t      ti;
-       int             hashid;
-
-       hashid = thread & HASH_MASK;
-
-       for (ti = th_info_hash[hashid]; ti; ti = ti->next) {
-               if (ti->thread == thread)
-                       ti->waited = 1;
-       }
-}
-
-
-void read_command_map()
+event_delete(th_info_t ti_to_delete)
 {
-       size_t  size;
-       int     i;
-       int total_threads = 0;
-       kd_threadmap *mapptr = 0;
-
-       delete_all_map_entries();
-
-       if (!RAW_flag) {
+       th_info_t       ti;
+       th_info_t       ti_prev;
+       int             hashid;
 
-               total_threads = bufinfo.nkdthreads;
-               size = bufinfo.nkdthreads * sizeof(kd_threadmap);
+       hashid = ti_to_delete->thread & HASH_MASK;
 
-               if (size) {
-                       if ((mapptr = (kd_threadmap *) malloc(size))) {
-                               int mib[6];
+       if ((ti = th_info_hash[hashid])) {
+               if (ti == ti_to_delete)
+                       th_info_hash[hashid] = ti->next;
+               else {
+                       ti_prev = ti;
 
-                               bzero (mapptr, size);
-                               /*
-                                * Now read the threadmap
-                                */
-                               mib[0] = CTL_KERN;
-                               mib[1] = KERN_KDEBUG;
-                               mib[2] = KERN_KDTHRMAP;
-                               mib[3] = 0;
-                               mib[4] = 0;
-                               mib[5] = 0;             /* no flags */
-
-                               if (sysctl(mib, 3, mapptr, &size, NULL, 0) < 0) {
-                                       /*
-                                        * This is not fatal -- just means I cant map command strings
-                                        */
-                                       free(mapptr);
-                                       return;
+                       for (ti = ti->next; ti; ti = ti->next) {
+                               if (ti == ti_to_delete) {
+                                       ti_prev->next = ti->next;
+                                       break;
                                }
+                               ti_prev = ti;
                        }
                }
-       } else {
-               RAW_header      header;
-               off_t   offset;
-
-               RAW_fd = open(RAW_file, O_RDONLY);
-
-               if (RAW_fd < 0) {
-                       perror("Can't open RAW file");
-                       exit(1);
-               }
-               if (read(RAW_fd, &header, sizeof(RAW_header)) != sizeof(RAW_header)) {
-                       perror("read failed");
-                       exit(2);
+               if (ti) {
+                       ti->next = th_info_freelist;
+                       th_info_freelist = ti;
                }
-               if (header.version_no != RAW_VERSION1) {
-                       header.version_no = RAW_VERSION0;
-                       header.TOD_secs = time((long *)0);
-                       header.TOD_usecs = 0;
+       }
+}
 
-                       lseek(RAW_fd, (off_t)0, SEEK_SET);
+void
+event_delete_all(void)
+{
+       th_info_t       ti = 0;
+       th_info_t       ti_next = 0;
+       int             i;
 
-                       if (read(RAW_fd, &header.thread_count, sizeof(int)) != sizeof(int)) {
-                               perror("read failed");
-                               exit(2);
-                       }
+       for (i = 0; i < HASH_SIZE; i++) {
+
+               for (ti = th_info_hash[i]; ti; ti = ti_next) {
+                       ti_next = ti->next;
+                       ti->next = th_info_freelist;
+                       th_info_freelist = ti;
                }
-               sample_TOD_secs = header.TOD_secs;
-               sample_TOD_usecs = header.TOD_usecs;
+               th_info_hash[i] = 0;
+       }
+}
 
-               total_threads = header.thread_count;
-               size = total_threads * sizeof(kd_threadmap);
+void
+event_enter(int type, ktrace_event_t event)
+{
+       th_info_t ti;
 
-               if (size) {
-                       if ((mapptr = (kd_threadmap *) malloc(size))) {
-                               bzero (mapptr, size);
+#if DEBUG
+       int index;
+       bool found;
 
-                               if (read(RAW_fd, mapptr, size) != size) {
-                                       free(mapptr);
-                                       return;
-                               }
-                       }
-               }
-               if (header.version_no != RAW_VERSION0) {
-                       offset = lseek(RAW_fd, (off_t)0, SEEK_CUR);
-                       offset = (offset + (4095)) & ~4095;
+       found = false;
 
-                       lseek(RAW_fd, offset, SEEK_SET);
-               }
+       switch (type) {
+               case P_CS_SYNC_DISK:
+               case MACH_pageout:
+               case MACH_vmfault:
+               case MSC_map_fd:
+               case SPEC_ioctl:
+               case Throttled:
+               case HFS_update:
+                       found = true;
        }
-       for (i = 0; i < total_threads; i++)
-               create_map_entry(mapptr[i].thread, mapptr[i].valid, &mapptr[i].command[0]);
-
-        free(mapptr);
-}
 
+       if ((type & CSC_MASK) == BSC_BASE) {
+               if ((index = BSC_INDEX(type)) < MAX_BSD_SYSCALL && bsd_syscalls[index].sc_name)
+                       found = true;
+       }
 
-void delete_all_map_entries()
-{
-       threadmap_t     tme = 0;
-        threadmap_t     tme_next = 0;
-       int             i;
+       os_assert(found);
+#endif /* DEBUG */
 
-       for (i = 0; i < HASH_SIZE; i++) {
+       if ((ti = add_event(event, type)) == NULL)
+               return;
 
-               for (tme = threadmap_hash[i]; tme; tme = tme_next) {
-                        if (tme->tm_setptr)
-                               free(tme->tm_setptr);
-                       tme_next = tme->tm_next;
-                        tme->tm_next = threadmap_freelist;
-                       threadmap_freelist = tme;
-                }
-                threadmap_hash[i] = 0;
-       }
+       ti->stime  = event->timestamp;
+       ti->arg1   = event->arg1;
+       ti->arg2   = event->arg2;
+       ti->arg3   = event->arg3;
+       ti->arg4   = event->arg4;
 }
 
-
-void create_map_entry(uintptr_t thread, int pid, char *command)
+void
+event_exit(char *sc_name, int type, ktrace_event_t event, int format)
 {
-        threadmap_t     tme;
-        int             hashid;
+       th_info_t ti;
+       pid_t pid;
+
+       if ((ti = event_find(event->threadid, type)) == NULL)
+               return;
 
-        if ((tme = threadmap_freelist))
-                threadmap_freelist = tme->tm_next;
-        else
-                tme = (threadmap_t)malloc(sizeof(struct threadmap));
+       pid = ktrace_get_pid_for_thread(s, event->threadid);
 
-        tme->tm_thread  = thread;
-       tme->tm_setsize = 0;
-       tme->tm_setptr  = 0;
+       if (check_filter_mode(pid, ti, type, (int)event->arg1, (int)event->arg2, sc_name)) {
+               const char *pathname;
 
-        (void)strncpy (tme->tm_command, command, MAXCOMLEN);
-        tme->tm_command[MAXCOMLEN] = '\0';
+               pathname = NULL;
 
-        hashid = thread & HASH_MASK;
+               /* most things are just interested in the first lookup */
+               if (ti->pathname[0] != '\0')
+                       pathname = ti->pathname;
 
-        tme->tm_next = threadmap_hash[hashid];
-        threadmap_hash[hashid] = tme;
+               if (!pathname)
+                       pathname = "";
 
-       if (pid != 0 && pid != 1) {
-               if (!strncmp(command, "LaunchCFMA", 10))
-                       (void)get_real_command_name(pid, tme->tm_command, MAXCOMLEN);
+               format_print(ti, sc_name, event, type, format, event->timestamp, ti->stime, ti->waited, pathname, NULL);
        }
-}
 
+       event_delete(ti);
+}
 
-threadmap_t
-find_map_entry(uintptr_t thread)
+void
+event_mark_thread_waited(uint64_t thread)
 {
-        threadmap_t     tme;
-        int     hashid;
+       th_info_t       ti;
+       int             hashid;
 
        hashid = thread & HASH_MASK;
 
-        for (tme = threadmap_hash[hashid]; tme; tme = tme->tm_next) {
-               if (tme->tm_thread == thread)
-                       return (tme);
+       for (ti = th_info_hash[hashid]; ti; ti = ti->next) {
+               if (ti->thread == thread)
+                       ti->waited = 1;
        }
-        return (0);
 }
 
+#pragma mark network fd set routines
 
-void
-delete_map_entry(uintptr_t thread)
+struct pid_fd_set {
+       struct pid_fd_set *next;
+       pid_t pid;
+       char *set;
+       size_t setsize; /* number of *bytes*, not bits */
+};
+
+struct pid_fd_set *pfs_hash[HASH_SIZE];
+
+static struct pid_fd_set *
+pfs_get(pid_t pid)
 {
-        threadmap_t     tme = 0;
-        threadmap_t     tme_prev;
-        int             hashid;
-
-        hashid = thread & HASH_MASK;
-
-        if ((tme = threadmap_hash[hashid])) {
-                if (tme->tm_thread == thread)
-                       threadmap_hash[hashid] = tme->tm_next;
-                else {
-                        tme_prev = tme;
-
-                       for (tme = tme->tm_next; tme; tme = tme->tm_next) {
-                                if (tme->tm_thread == thread) {
-                                        tme_prev->tm_next = tme->tm_next;
-                                        break;
-                               }
-                                tme_prev = tme;
-                       }
-               }
-                if (tme) {
-                       if (tme->tm_setptr)
-                               free(tme->tm_setptr);
+       struct pid_fd_set *pfs;
+       int hashid;
+
+       os_assert(pid >= 0);
 
-                        tme->tm_next = threadmap_freelist;
-                       threadmap_freelist = tme;
+       hashid = pid & HASH_MASK;
+
+       for (pfs = pfs_hash[hashid]; pfs; pfs = pfs->next) {
+               if (pfs->pid == pid) {
+                       return pfs;
                }
        }
-}
 
+       pfs = calloc(1, sizeof (struct pid_fd_set));
+
+       pfs->pid = pid;
+       pfs->set = NULL;
+       pfs->setsize = 0;
+       pfs->next = pfs_hash[hashid];
+       pfs_hash[hashid] = pfs;
+
+       return pfs;
+}
 
 void
-fs_usage_fd_set(uintptr_t thread, unsigned int fd)
+fd_clear_pid(pid_t pid)
 {
-       threadmap_t     tme;
+       struct pid_fd_set *pfs, *prev;
+       int hashid;
 
-       if ((tme = find_map_entry(thread)) == 0)
+       if (pid < 0)
                return;
-       /*
-        * If the map is not allocated, then now is the time
-        */
-       if (tme->tm_setptr == (unsigned long *)0) {
-               if ((tme->tm_setptr = (unsigned long *)malloc(FS_USAGE_NFDBYTES(FS_USAGE_FD_SETSIZE))) == 0)
-                       return;
 
-               tme->tm_setsize = FS_USAGE_FD_SETSIZE;
-               bzero(tme->tm_setptr, (FS_USAGE_NFDBYTES(FS_USAGE_FD_SETSIZE)));
-       }
-       /*
-        * If the map is not big enough, then reallocate it
-        */
-       while (tme->tm_setsize <= fd) {
-               int     n;
+       hashid = pid & HASH_MASK;
+
+       pfs = pfs_hash[hashid];
+       prev = NULL;
 
-               n = tme->tm_setsize * 2;
-               tme->tm_setptr = (unsigned long *)realloc(tme->tm_setptr, (FS_USAGE_NFDBYTES(n)));
+       while (pfs) {
+               if (pfs->pid == pid) {
+                       if (prev) {
+                               prev->next = pfs->next;
+                       } else {
+                               pfs_hash[hashid] = pfs->next;
+                       }
 
-               bzero(&tme->tm_setptr[(tme->tm_setsize/FS_USAGE_NFDBITS)], (FS_USAGE_NFDBYTES(tme->tm_setsize)));
-               tme->tm_setsize = n;
+                       free(pfs->set);
+                       free(pfs);
+
+                       break;
+               } else {
+                       prev = pfs;
+                       pfs = pfs->next;
+               }
        }
-       /*
-        * set the bit
-        */
-       tme->tm_setptr[fd/FS_USAGE_NFDBITS] |= (1 << ((fd) % FS_USAGE_NFDBITS));
 }
 
-
-/*
- * Return values:
- *  0 : File Descriptor bit is not set
- *  1 : File Descriptor bit is set
- */
-int
-fs_usage_fd_isset(uintptr_t thread, unsigned int fd)
+void
+fd_clear_all(void)
 {
-       threadmap_t     tme;
-       int             ret = 0;
+       struct pid_fd_set *pfs, *next;
+       int i;
+
+       for (i = 0; i < HASH_SIZE; i++) {
+               for (pfs = pfs_hash[i]; pfs; pfs = next) {
+                       next = pfs->next;
 
-       if ((tme = find_map_entry(thread))) {
-               if (tme->tm_setptr && fd < tme->tm_setsize)
-                       ret = tme->tm_setptr[fd/FS_USAGE_NFDBITS] & (1 << (fd % FS_USAGE_NFDBITS));
+                       free(pfs->set);
+                       free(pfs);
+               }
+
+               pfs_hash[i] = NULL;
        }
-       return (ret);
 }
-    
 
 void
-fs_usage_fd_clear(uintptr_t thread, unsigned int fd)
+fd_set_is_network(pid_t pid, uint64_t fd, bool set)
 {
-       threadmap_t     tme;
+       struct pid_fd_set *pfs;
 
-       if ((tme = find_map_entry(thread))) {
-               if (tme->tm_setptr && fd < tme->tm_setsize)
-                       tme->tm_setptr[fd/FS_USAGE_NFDBITS] &= ~(1 << (fd % FS_USAGE_NFDBITS));
-       }
-}
+       if (pid < 0)
+               return;
+       if (fd > OPEN_MAX)
+               return;
 
+       pfs = pfs_get(pid);
 
+       if (fd >= pfs->setsize * CHAR_BIT) {
+               size_t newsize;
 
-void
-argtopid(char *str)
+               if (!set) return;
+
+               newsize = MAX(((size_t)fd + CHAR_BIT) / CHAR_BIT, 2 * pfs->setsize);
+               pfs->set = reallocf(pfs->set, newsize);
+               os_assert(pfs->set != NULL);
+
+               bzero(pfs->set + pfs->setsize, newsize - pfs->setsize);
+               pfs->setsize = newsize;
+       }
+
+       if (set)
+               setbit(pfs->set, fd);
+       else
+               clrbit(pfs->set, fd);
+}
+
+bool
+fd_is_network(pid_t pid, uint64_t fd)
 {
-        char *cp;
-        int ret;
-       int i;
+       struct pid_fd_set *pfs;
 
-        ret = (int)strtol(str, &cp, 10);
+       if (pid < 0)
+               return false;
 
-        if (cp == str || *cp) {
-               /*
-                * Assume this is a command string and find matching pids
-                */
-               if (!kp_buffer)
-                       find_proc_names();
+       pfs = pfs_get(pid);
 
-               for (i = 0; i < kp_nentries && num_of_pids < (MAX_PIDS - 1); i++) {
-                       if (kp_buffer[i].kp_proc.p_stat == 0)
-                               continue;
-                       else {
-                               if (!strncmp(str, kp_buffer[i].kp_proc.p_comm,
-                                            sizeof(kp_buffer[i].kp_proc.p_comm) -1))
-                                       pids[num_of_pids++] = kp_buffer[i].kp_proc.p_pid;
-                       }
-               }
+       if (fd >= pfs->setsize * CHAR_BIT) {
+               return false;
        }
-       else if (num_of_pids < (MAX_PIDS - 1))
-               pids[num_of_pids++] = ret;
+
+       return isset(pfs->set, fd);
 }
 
+#pragma mark shared region address lookup routines
 
+#define MAXINDEX 2048
 
-void
-lookup_name(uint64_t user_addr, char **type, char **name) 
-{       
-        int i;
-       int start, last;
-       
-       *name = NULL;
-       *type = NULL;
+struct library_range {
+       uint64_t b_address;
+       uint64_t e_address;
+};
 
-       if (numFrameworks) {
+struct library_info {
+       uint64_t b_address;
+       uint64_t e_address;
+       int      r_type;
+       char     *name;
+};
 
-               if ((user_addr >= framework32.b_address && user_addr < framework32.e_address) ||
-                   (user_addr >= framework64.b_address && user_addr < framework64.e_address)) {
-                             
-                       start = 0;
-                       last  = numFrameworks;
+struct library_range framework32 = {0, 0};
+struct library_range framework64 = {0, 0};
+struct library_range framework64h = {0, 0};
 
-                       for (i = numFrameworks / 2; start < last; i = start + ((last - start) / 2)) {
-                               if (user_addr > frameworkInfo[i].e_address)
-                                       start = i+1;
-                               else
-                                       last = i;
-                       }
-                       if (start < numFrameworks &&
-                           user_addr >= frameworkInfo[start].b_address && user_addr < frameworkInfo[start].e_address) {
-                               *type = frameworkType[frameworkInfo[start].r_type];
-                               *name = frameworkInfo[start].name;
-                       }
-               }
-       }
-}
+struct library_info library_infos[MAXINDEX];
+int num_libraries = 0;
 
+#define        TEXT_R          0
+#define DATA_R         1
+#define OBJC_R         2
+#define IMPORT_R       3
+#define UNICODE_R      4
+#define IMAGE_R                5
+#define LINKEDIT_R     6
 
-/*
- * Comparison routines for sorting
- */
-static int compareFrameworkAddress(const void  *aa, const void *bb)
+static void
+sort_library_addresses(void)
 {
-       LibraryInfo *a = (LibraryInfo *)aa;
-       LibraryInfo *b = (LibraryInfo *)bb;
-
-       if (a->b_address < b->b_address) return -1;
-       if (a->b_address == b->b_address) return 0;
-       return 1;
+       library_infos[num_libraries].b_address = library_infos[num_libraries - 1].b_address + 0x800000;
+       library_infos[num_libraries].e_address = library_infos[num_libraries].b_address;
+       library_infos[num_libraries].name = NULL;
+
+       qsort_b(library_infos, num_libraries, sizeof (struct library_info), ^int(const void *aa, const void *bb) {
+               struct library_info *a = (struct library_info *)aa;
+               struct library_info *b = (struct library_info *)bb;
+
+               if (a->b_address < b->b_address) return -1;
+               if (a->b_address == b->b_address) return 0;
+               return 1;
+       });
 }
 
-
-int scanline(char *inputstring, char **argv, int maxtokens)
+static int
+scanline(char *inputstring, char **argv, int maxtokens)
 {
        int n = 0;
        char **ap = argv, *p, *val;
 
        for (p = inputstring; n < maxtokens && p != NULL; ) {
-
-               while ((val = strsep(&p, " \t")) != NULL && *val == '\0');
+               while ((val = strsep(&p, " \t")) != NULL && *val == '\0') ;
 
                *ap++ = val;
                n++;
        }
+
        *ap = 0;
 
        return n;
 }
 
-
-int ReadSharedCacheMap(const char *path, LibraryRange *lr, char *linkedit_name)
+static int
+read_shared_cache_map(const char *path, struct library_range *lr, char *linkedit_name)
 {
        uint64_t        b_address, e_address;
        char    buf[1024];
-       char    *fnp;
+       char    *fnp, *fn_tofree;
        FILE    *fd;
        char    frameworkName[256];
        char    *tokens[64];
@@ -4338,21 +3225,22 @@ int ReadSharedCacheMap(const char *path, LibraryRange *lr, char *linkedit_name)
                if (strncmp(buf, "mapping", 7))
                        break;
        }
+
        buf[strlen(buf)-1] = 0;
-       
+
        frameworkName[0] = 0;
 
        for (;;) {
                /*
                 * Extract lib name from path name
                 */
-               if ((substring = strrchr(buf, '.')))
-               {               
+               if ((substring = strrchr(buf, '.'))) {
                        /*
-                        * There is a ".": name is whatever is between the "/" around the "." 
+                        * There is a ".": name is whatever is between the "/" around the "."
                         */
                        while ( *substring != '/')                  /* find "/" before "." */
                                substring--;
+
                        substring++;
 
                        strncpy(frameworkName, substring, 256);           /* copy path from "/" */
@@ -4361,10 +3249,9 @@ int ReadSharedCacheMap(const char *path, LibraryRange *lr, char *linkedit_name)
 
                        while ( *substring != '/' && *substring)    /* find "/" after "." and stop string there */
                                substring++;
+
                        *substring = 0;
-               }
-               else 
-               {
+               } else {
                        /*
                         * No ".": take segment after last "/"
                         */
@@ -4376,13 +3263,16 @@ int ReadSharedCacheMap(const char *path, LibraryRange *lr, char *linkedit_name)
                                        substring = ptr + 1;
                                ptr++;
                        }
+
                        strncpy(frameworkName, substring, 256);
                        frameworkName[255] = 0;
                }
-               fnp = (char *)malloc(strlen(frameworkName) + 1);
+
+               fnp = malloc(strlen(frameworkName) + 1);
+               fn_tofree = fnp;
                strcpy(fnp, frameworkName);
 
-               while (fgets(buf, 1023, fd) && numFrameworks < (MAXINDEX - 2)) {
+               while (fgets(buf, 1023, fd) && num_libraries < (MAXINDEX - 2)) {
                        /*
                         * Get rid of EOL
                         */
@@ -4417,15 +3307,17 @@ int ReadSharedCacheMap(const char *path, LibraryRange *lr, char *linkedit_name)
                                b_address = strtoull(tokens[1], 0, 16);
                                e_address = strtoull(tokens[3], 0, 16);
 
-                               frameworkInfo[numFrameworks].b_address  = b_address;
-                               frameworkInfo[numFrameworks].e_address  = e_address;
-                               frameworkInfo[numFrameworks].r_type     = type;
-                               
+                               library_infos[num_libraries].b_address  = b_address;
+                               library_infos[num_libraries].e_address  = e_address;
+                               library_infos[num_libraries].r_type     = type;
+
                                if (type == LINKEDIT_R) {
-                                       frameworkInfo[numFrameworks].name = linkedit_name;
+                                       library_infos[num_libraries].name = linkedit_name;
                                        linkedit_found = 1;
-                               } else
-                                       frameworkInfo[numFrameworks].name = fnp;
+                               } else {
+                                       library_infos[num_libraries].name = fnp;
+                                       fn_tofree = NULL;
+                               }
 #if 0
                                printf("%s(%d): %qx-%qx\n", frameworkInfo[numFrameworks].name, type, b_address, e_address);
 #endif
@@ -4435,16 +3327,21 @@ int ReadSharedCacheMap(const char *path, LibraryRange *lr, char *linkedit_name)
                                if (lr->e_address == 0 || e_address > lr->e_address)
                                        lr->e_address = e_address;
 
-                               numFrameworks++;
+                               num_libraries++;
                        }
+
                        if (type == LINKEDIT_R)
                                break;
                }
+
+               free(fn_tofree);
+
                if (fgets(buf, 1023, fd) == 0)
                        break;
 
                buf[strlen(buf)-1] = 0;
        }
+
        fclose(fd);
 
 #if 0
@@ -4453,233 +3350,338 @@ int ReadSharedCacheMap(const char *path, LibraryRange *lr, char *linkedit_name)
        return 1;
 }
 
+void
+init_shared_cache_mapping(void)
+{
+       read_shared_cache_map("/var/db/dyld/dyld_shared_cache_i386.map", &framework32, "/var/db/dyld/dyld_shared_cache_i386");
+
+       if (0 == read_shared_cache_map("/var/db/dyld/dyld_shared_cache_x86_64h.map", &framework64h, "/var/db/dyld/dyld_shared_cache_x86_64h")) {
+               read_shared_cache_map("/var/db/dyld/dyld_shared_cache_x86_64.map", &framework64, "/var/db/dyld/dyld_shared_cache_x86_64");
+       }
+
+       sort_library_addresses();
+}
 
 void
-SortFrameworkAddresses()
+lookup_name(uint64_t user_addr, char **type, char **name)
 {
+       int i;
+       int start, last;
+
+       static char *frameworkType[] = {
+               "<TEXT>    ",
+               "<DATA>    ",
+               "<OBJC>    ",
+               "<IMPORT>  ",
+               "<UNICODE> ",
+               "<IMAGE>   ",
+               "<LINKEDIT>",
+       };
+
+       *name = NULL;
+       *type = NULL;
+
+       if (num_libraries) {
+               if ((user_addr >= framework32.b_address && user_addr < framework32.e_address) ||
+                       (user_addr >= framework64.b_address && user_addr < framework64.e_address) ||
+                       (user_addr >= framework64h.b_address && user_addr < framework64h.e_address)) {
+
+                       start = 0;
+                       last  = num_libraries;
 
-       frameworkInfo[numFrameworks].b_address = frameworkInfo[numFrameworks - 1].b_address + 0x800000;
-       frameworkInfo[numFrameworks].e_address = frameworkInfo[numFrameworks].b_address;
-       frameworkInfo[numFrameworks].name = (char *)0;
+                       for (i = num_libraries / 2; start < last; i = start + ((last - start) / 2)) {
+                               if (user_addr > library_infos[i].e_address)
+                                       start = i+1;
+                               else
+                                       last = i;
+                       }
 
-       qsort(frameworkInfo, numFrameworks, sizeof(LibraryInfo), compareFrameworkAddress);
+                       if (start < num_libraries &&
+                               user_addr >= library_infos[start].b_address && user_addr < library_infos[start].e_address) {
+                               *type = frameworkType[library_infos[start].r_type];
+                               *name = library_infos[start].name;
+                       }
+               }
+       }
 }
 
+#pragma mark disk I/O tracking routines
 
-struct diskio *insert_diskio(int type, int bp, int dev, int blkno, int io_size, uintptr_t thread, double curtime)
+struct diskio *free_diskios = NULL;
+struct diskio *busy_diskios = NULL;
+
+struct diskio *
+diskio_start(uint64_t type, uint64_t bp, uint64_t dev,
+            uint64_t blkno, uint64_t iosize, ktrace_event_t event)
 {
-       struct diskio   *dio;
-       threadmap_t     tme;
-    
-       if ((dio = free_diskios))
+       const char *command;
+       struct diskio *dio;
+
+       if ((dio = free_diskios)) {
                free_diskios = dio->next;
-       else {
-               if ((dio = (struct diskio *)malloc(sizeof(struct diskio))) == NULL)
-                       return (NULL);
+       } else {
+               dio = malloc(sizeof (struct diskio));
        }
+
        dio->prev = NULL;
-    
+
        dio->type = type;
        dio->bp = bp;
        dio->dev = dev;
        dio->blkno = blkno;
-       dio->iosize = io_size;
-       dio->issued_time = curtime;
-       dio->issuing_thread = thread;
-       
-       if ((tme = find_map_entry(thread))) {
-               strncpy(dio->issuing_command, tme->tm_command, MAXCOMLEN);
-               dio->issuing_command[MAXCOMLEN-1] = '\0';
-       } else
-               strcpy(dio->issuing_command, "");
-    
+       dio->iosize = iosize;
+       dio->issued_time = event->timestamp;
+       dio->issuing_thread = event->threadid;
+       dio->issuing_pid = ktrace_get_pid_for_thread(s, event->threadid);
+
+       dio->bc_info = 0x0;
+
+       command = ktrace_get_execname_for_thread(s, event->threadid);
+
+       if (!command)
+               command = "";
+
+       strncpy(dio->issuing_command, command, MAXCOMLEN);
+       dio->issuing_command[MAXCOMLEN] = '\0';
+
        dio->next = busy_diskios;
+
        if (dio->next)
                dio->next->prev = dio;
+
        busy_diskios = dio;
 
-       return (dio);
+       return dio;
 }
 
-
-struct diskio *complete_diskio(int bp, int io_errno, int resid, uintptr_t thread, double curtime)
+struct diskio *
+diskio_find(uint64_t bp)
 {
        struct diskio *dio;
-    
-       for (dio = busy_diskios; dio; dio = dio->next) {
 
-               if (dio->bp == bp) {
-                       if (dio == busy_diskios) {
-                               if ((busy_diskios = dio->next))
-                                       dio->next->prev = NULL;
-                       } else {
-                               if (dio->next)
-                                       dio->next->prev = dio->prev;
-                               dio->prev->next = dio->next;
-                       }
-                       dio->iosize -= resid;
-                       dio->io_errno = io_errno;
-                       dio->completed_time = curtime;
-                       dio->completion_thread = thread;
-            
-                       return (dio);
-               }    
+       for (dio = busy_diskios; dio; dio = dio->next) {
+               if (dio->bp == bp)
+                       return dio;
        }
-       return ((struct diskio *)0);
+
+       return NULL;
 }
 
+struct diskio *
+diskio_complete(uint64_t bp, uint64_t io_errno, uint64_t resid,
+               uint64_t thread, uint64_t curtime, struct timeval curtime_wall)
+{
+       struct diskio *dio;
+
+       if ((dio = diskio_find(bp)) == NULL) return NULL;
 
-void free_diskio(struct diskio *dio)
+       if (dio == busy_diskios) {
+               if ((busy_diskios = dio->next))
+                       dio->next->prev = NULL;
+       } else {
+               if (dio->next)
+                       dio->next->prev = dio->prev;
+               dio->prev->next = dio->next;
+       }
+
+       dio->iosize -= resid;
+       dio->io_errno = io_errno;
+       dio->completed_time = curtime;
+       dio->completed_walltime = curtime_wall;
+       dio->completion_thread = thread;
+
+       return dio;
+}
+
+void
+diskio_free(struct diskio *dio)
 {
        dio->next = free_diskios;
        free_diskios = dio;
 }
 
-
-void print_diskio(struct diskio *dio)
+void
+diskio_print(struct diskio *dio)
 {
        char  *p = NULL;
        int   len = 0;
-       int   type;
+       uint64_t type;
        int   format = FMT_DISKIO;
        char  buf[64];
 
        type = dio->type;
-       
-
-       if (type == P_CS_ReadChunk || type == P_CS_WriteChunk || type == P_CS_Originated_Read ||
-           type == P_CS_Originated_Write || type == P_CS_MetaRead || type == P_CS_MetaWrite) {
+       dio->is_meta = 0;
 
+       if ((type & P_CS_Class) == P_CS_Class) {
                switch (type) {
-
-               case P_CS_ReadChunk:
-                       p = "    RdChunkCS";
-                       len = 13;
-                       format = FMT_DISKIO_CS;
-                       break;
-               case P_CS_WriteChunk:
-                       p = "    WrChunkCS";
-                       len = 13;
-                       format = FMT_DISKIO_CS;
-                       break;
-               case P_CS_MetaRead:
-                       p = "  RdMetaCS";
-                       len = 10;
-                       format = FMT_DISKIO_CS;
-                       break;
-               case P_CS_MetaWrite:
-                       p = "  WrMetaCS";
-                       len = 10;
-                       format = FMT_DISKIO_CS;
-                       break;
-               case P_CS_Originated_Read:
-                       p = "  RdDataCS";
-                       len = 10;
-                       break;
-               case P_CS_Originated_Write:
-                       p = "  WrDataCS";
-                       len = 10;
-                       break;
+                       case P_CS_ReadChunk:
+                               p = "    RdChunkCS";
+                               len = 13;
+                               format = FMT_DISKIO_CS;
+                               break;
+                       case P_CS_WriteChunk:
+                               p = "    WrChunkCS";
+                               len = 13;
+                               format = FMT_DISKIO_CS;
+                               break;
+                       case P_CS_MetaRead:
+                               p = "  RdMetaCS";
+                               len = 10;
+                               format = FMT_DISKIO_CS;
+                               break;
+                       case P_CS_MetaWrite:
+                               p = "  WrMetaCS";
+                               len = 10;
+                               format = FMT_DISKIO_CS;
+                               break;
+                       case P_CS_TransformRead:
+                               p = "  RdBgTfCS";
+                               len = 10;
+                               break;
+                       case P_CS_TransformWrite:
+                               p = "  WrBgTfCS";
+                               len = 10;
+                               break;
+                       case P_CS_MigrationRead:
+                               p = "  RdBgMigrCS";
+                               len = 12;
+                               break;
+                       case P_CS_MigrationWrite:
+                               p = "  WrBgMigrCS";
+                               len = 12;
+                               break;
+                       default:
+                               p = "  CS";
+                               len = 4;
+                               break;
                }
+
                strncpy(buf, p, len);
        } else {
-
                switch (type & P_DISKIO_TYPE) {
-
-               case P_RdMeta:
-                       p = "  RdMeta";
-                       len = 8;
-                       break;
-               case P_WrMeta:
-                       p = "  WrMeta";
-                       len = 8;
-                       break;
-               case P_RdData:
-                       p = "  RdData";
-                       len = 8;
-                       break;
-               case P_WrData:
-                       p = "  WrData";
-                       len = 8;
-                       break;        
-               case P_PgIn:
-                       p = "  PgIn";
-                       len = 6;
-                       break;
-               case P_PgOut:
-                       p = "  PgOut";
-                       len = 7;
-                       break;
-               default:
-                       p = "  ";
-                       len = 2;
-                       break;
+                       case P_RdMeta:
+                               dio->is_meta = 1;
+                               p = "  RdMeta";
+                               len = 8;
+                               break;
+                       case P_WrMeta:
+                               dio->is_meta = 1;
+                               p = "  WrMeta";
+                               len = 8;
+                               break;
+                       case P_RdData:
+                               p = "  RdData";
+                               len = 8;
+                               break;
+                       case P_WrData:
+                               p = "  WrData";
+                               len = 8;
+                               break;
+                       case P_PgIn:
+                               p = "  PgIn";
+                               len = 6;
+                               break;
+                       case P_PgOut:
+                               p = "  PgOut";
+                               len = 7;
+                               break;
+                       default:
+                               p = "  ";
+                               len = 2;
+                               break;
                }
+
                strncpy(buf, p, len);
 
-               if (type & (P_DISKIO_ASYNC | P_DISKIO_THROTTLE | P_DISKIO_PASSIVE)) {
-                       buf[len++] = '[';
-               
-                       if (type & P_DISKIO_ASYNC) {
-                               memcpy(&buf[len], "async", 5);
-                               len += 5;
-                       }
-                       if (type & P_DISKIO_THROTTLE)
-                               buf[len++] = 'T';
-                       else if (type & P_DISKIO_PASSIVE)
-                               buf[len++] = 'P';
+               buf[len++] = '[';
+
+               if (type & P_DISKIO_ASYNC)
+                       buf[len++] = 'A';
+               else
+                       buf[len++] = 'S';
+
+               if (type & P_DISKIO_NOCACHE)
+                       buf[len++] = 'N';
+
+               int tier = (type & P_DISKIO_TIER_MASK) >> P_DISKIO_TIER_SHIFT;
+
+               if (tier > 0) {
+                       buf[len++] = 'T';
+                       if (tier > 0 && tier < 10)
+                               buf[len++] = '0' + tier;
 
-                       buf[len++] = ']';
+                       if (type & P_DISKIO_TIER_UPGRADE) {
+                               buf[len++] = 'U';
+                       }
                }
+
+               if (type & P_DISKIO_PASSIVE)
+                       buf[len++] = 'P';
+
+               buf[len++] = ']';
        }
+
        buf[len] = 0;
 
-       if (check_filter_mode(NULL, type, 0, 0, buf))
-               format_print(NULL, buf, dio->issuing_thread, type, 0, 0, 0, 0, format, dio->completed_time, dio->issued_time, 1, "", dio);
+       if (check_filter_mode(-1, NULL, type, 0, 0, buf)) {
+               const char *pathname = ktrace_get_path_for_vp(s, dio->vnodeid);
+               format_print(NULL, buf, NULL, type, format, dio->completed_time,
+                               dio->issued_time, 1, pathname ? pathname : "", dio);
+       }
 }
 
+#pragma mark disk name routines
+
+struct diskrec {
+       struct diskrec *next;
+       char *diskname;
+       int   dev;
+};
+
+struct diskrec *disk_list = NULL;
 
-void cache_disk_names()
+void
+cache_disk_names(void)
 {
        struct stat    st;
        DIR            *dirp = NULL;
        struct dirent  *dir;
        struct diskrec *dnp;
 
-
        if ((dirp = opendir("/dev")) == NULL)
                return;
-        
+
        while ((dir = readdir(dirp)) != NULL) {
                char nbuf[MAXPATHLEN];
-        
+
                if (dir->d_namlen < 5 || strncmp("disk", dir->d_name, 4))
                        continue;
 
                snprintf(nbuf, MAXPATHLEN, "%s/%s", "/dev", dir->d_name);
-        
+
                if (stat(nbuf, &st) < 0)
                        continue;
 
-               if ((dnp = (struct diskrec *)malloc(sizeof(struct diskrec))) == NULL)
+               if ((dnp = malloc(sizeof(struct diskrec))) == NULL)
                        continue;
-            
-               if ((dnp->diskname = (char *)malloc(dir->d_namlen + 1)) == NULL) {
+
+               if ((dnp->diskname = malloc(dir->d_namlen + 1)) == NULL) {
                        free(dnp);
                        continue;
                }
                strncpy(dnp->diskname, dir->d_name, dir->d_namlen);
                dnp->diskname[dir->d_namlen] = 0;
                dnp->dev = st.st_rdev;
-        
+
                dnp->next = disk_list;
                disk_list = dnp;
        }
-       (void) closedir(dirp);
-}
 
+       closedir(dirp);
+}
 
-void recache_disk_names()
+static void
+recache_disk_names(void)
 {
        struct diskrec *dnp, *next_dnp;
 
@@ -4689,23 +3691,23 @@ void recache_disk_names()
                free(dnp->diskname);
                free(dnp);
        }
-       disk_list = NULL;
 
+       disk_list = NULL;
        cache_disk_names();
 }
 
-
-char *find_disk_name(int dev)
+char *
+find_disk_name(uint64_t dev)
 {
        struct diskrec *dnp;
        int     i;
-    
+
        if (dev == NFS_DEV)
                return ("NFS");
-        
+
        if (dev == CS_DEV)
                return ("CS");
-        
+
        for (i = 0; i < 2; i++) {
                for (dnp = disk_list; dnp; dnp = dnp->next) {
                        if (dnp->dev == dev)
@@ -4713,284 +3715,17 @@ char *find_disk_name(int dev)
                }
                recache_disk_names();
        }
-       return ("NOTFOUND");
-}
-
-
-char *generate_cs_disk_name(int dev, char *s)
-{
-       if (dev == -1)
-               return ("UNKNOWN");
-       
-       sprintf(s, "disk%ds%d", (dev >> 16) & 0xffff, dev & 0xffff);
-
-       return (s);
-}
-
-
-
-/*
- * ret = 1 means print the entry
- * ret = 0 means don't print the entry
- */
-int
-check_filter_mode(struct th_info * ti, int type, int error, int retval, char *sc_name)
-{
-       int ret = 0;
-       int network_fd_isset = 0;
-       unsigned int fd;
-
-       if (filter_mode == DEFAULT_DO_NOT_FILTER)
-               return(1);
-
-       if (sc_name[0] == 'C' && !strcmp (sc_name, "CACHE_HIT")) {
-               if (filter_mode & CACHEHIT_FILTER)
-                       /* Do not print if cachehit filter is set */
-                       return(0);
-               return(1);
-       }
-       
-       if (filter_mode & EXEC_FILTER) {
-               if (type == BSC_execve || type == BSC_posix_spawn)
-                       return(1);
-               return(0);
-       }
-
-       if (filter_mode & PATHNAME_FILTER) {
-            if (ti && ti->pathname[0])
-                   return(1);
-           if (type == BSC_close || type == BSC_close_nocancel)
-                   return(1);
-           return(0);
-       }
-
-       if ( !(filter_mode & (FILESYS_FILTER | NETWORK_FILTER)))
-               return(1);
-
-       if (ti == (struct th_info *)0) {
-               if (filter_mode & FILESYS_FILTER)
-                       return(1);
-               return(0);
-       }
-
-       switch (type) {
-
-       case BSC_close:
-       case BSC_close_nocancel:
-           fd = ti->arg1;
-           network_fd_isset = fs_usage_fd_isset(ti->thread, fd);
-
-           if (error == 0)
-                   fs_usage_fd_clear(ti->thread,fd);
-           
-           if (network_fd_isset) {
-                   if (filter_mode & NETWORK_FILTER)
-                           ret = 1;
-           } else if (filter_mode & FILESYS_FILTER)
-                   ret = 1;
-           break;
-
-       case BSC_read:
-       case BSC_write:
-       case BSC_read_nocancel:
-       case BSC_write_nocancel:
-           /*
-            * we don't care about error in these cases
-            */
-           fd = ti->arg1;
-           network_fd_isset = fs_usage_fd_isset(ti->thread, fd);
-
-           if (network_fd_isset) {
-                   if (filter_mode & NETWORK_FILTER)
-                           ret = 1;
-           } else if (filter_mode & FILESYS_FILTER)
-                   ret = 1;    
-           break;
-
-       case BSC_accept:
-       case BSC_accept_nocancel:
-       case BSC_socket:
-           fd = retval;
-
-           if (error == 0)
-                   fs_usage_fd_set(ti->thread, fd);
-           if (filter_mode & NETWORK_FILTER)
-                   ret = 1;
-           break;
-
-       case BSC_recvfrom:
-       case BSC_sendto:
-       case BSC_recvmsg:
-       case BSC_sendmsg:
-       case BSC_connect:
-       case BSC_bind:
-       case BSC_listen:            
-       case BSC_sendto_nocancel:
-       case BSC_recvfrom_nocancel:
-       case BSC_recvmsg_nocancel:
-       case BSC_sendmsg_nocancel:
-       case BSC_connect_nocancel:
-           fd = ti->arg1;
-
-           if (error == 0)
-                   fs_usage_fd_set(ti->thread, fd);
-           if (filter_mode & NETWORK_FILTER)
-                   ret = 1;
-           break;
-
-       case BSC_select:
-       case BSC_select_nocancel:
-       case BSC_socketpair:
-           /*
-            * Cannot determine info about file descriptors
-            */
-           if (filter_mode & NETWORK_FILTER)
-                   ret = 1;
-           break;
-
-       case BSC_dup:
-       case BSC_dup2:
-           /*
-            * We track these cases for fd state only
-            */
-           fd = ti->arg1;
-           network_fd_isset = fs_usage_fd_isset(ti->thread, fd);
-
-           if (error == 0 && network_fd_isset) {
-                   /*
-                    * then we are duping a socket descriptor
-                    */
-                   fd = retval;  /* the new fd */
-                   fs_usage_fd_set(ti->thread, fd);
-           }
-           break;
-
-       default:
-           if (filter_mode & FILESYS_FILTER)
-                   ret = 1;
-           break;
-       }
-
-       return(ret);
-}
-
-/*
- * Allocate a buffer that is large enough to hold the maximum arguments
- * to execve().  This is used when getting the arguments to programs
- * when we see LaunchCFMApps.  If this fails, it is not fatal, we will
- * simply not resolve the command name.
- */
-
-void
-init_arguments_buffer()
-{
-       int     mib[2];
-       size_t  size;
-
-       mib[0] = CTL_KERN;
-       mib[1] = KERN_ARGMAX;
-       size = sizeof(argmax);
 
-       if (sysctl(mib, 2, &argmax, &size, NULL, 0) == -1)
-               return;
-#if 1
-       /* Hack to avoid kernel bug. */
-       if (argmax > 8192) {
-               argmax = 8192;
-       }
-#endif
-       arguments = (char *)malloc(argmax);
+       return "NOTFOUND";
 }
 
-
-int
-get_real_command_name(int pid, char *cbuf, int csize)
+char *
+generate_cs_disk_name(uint64_t dev, char *s)
 {
-       /*
-        * Get command and arguments.
-        */
-       char    *cp;
-       int     mib[4];
-       char    *command_beg, *command, *command_end;
-
-       if (cbuf == NULL)
-               return(0);
-
-       if (arguments)
-               bzero(arguments, argmax);
-       else
-               return(0);
-
-       /*
-        * A sysctl() is made to find out the full path that the command
-        * was called with.
-        */
-       mib[0] = CTL_KERN;
-       mib[1] = KERN_PROCARGS2;
-       mib[2] = pid;
-       mib[3] = 0;
-
-       if (sysctl(mib, 3, arguments, (size_t *)&argmax, NULL, 0) < 0)
-               return(0);
-
-       /*
-        * Skip the saved exec_path
-        */
-       for (cp = arguments; cp < &arguments[argmax]; cp++) {
-               if (*cp == '\0') {
-                       /*
-                        * End of exec_path reached
-                        */
-                       break;
-               }
-       }
-       if (cp == &arguments[argmax])
-               return(0);
-
-       /*
-        * Skip trailing '\0' characters
-        */
-       for (; cp < &arguments[argmax]; cp++) {
-               if (*cp != '\0') {
-                       /*
-                        * Beginning of first argument reached
-                        */
-                       break;
-               }
-       }
-       if (cp == &arguments[argmax])
-               return(0);
-
-       command_beg = cp;
-       /*
-        * Make sure that the command is '\0'-terminated.  This protects
-        * against malicious programs; under normal operation this never
-        * ends up being a problem..
-        */
-       for (; cp < &arguments[argmax]; cp++) {
-               if (*cp == '\0') {
-                       /*
-                        * End of first argument reached
-                        */
-                       break;
-               }
-       }
-       if (cp == &arguments[argmax])
-               return(0);
-
-       command_end = command = cp;
+       if (dev == -1)
+               return "UNKNOWN";
 
-       /*
-        * Get the basename of command
-        */
-       for (command--; command >= command_beg; command--) {
-               if (*command == '/') {
-                       command++;
-                       break;
-               }
-       }
-       (void) strncpy(cbuf, (char *)command, csize);
-       cbuf[csize-1] = '\0';
+       sprintf(s, "disk%" PRIu64 "s%" PRIu64, (dev >> 16) & 0xffff, dev & 0xffff);
 
-       return(1);
+       return (s);
 }