xnu-2050.9.2.tar.gz

[apple/xnu.git] / osfmk / kern / debug.h

diff --git a/osfmk/kern/debug.h b/osfmk/kern/debug.h
index a2d96f04739d290f782deaebe39c0451ea4941fb..c773ca6233fe2c4f78e3b314a9c536a8a0dd60e6 100644 (file)
--- a/osfmk/kern/debug.h
+++ b/osfmk/kern/debug.h
@@ -1,16 +1,19 @@
 /*
 /*

- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2007 Apple Inc. All rights reserved.

  *
  *

- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@

  * 
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in
  * 
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in

- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ 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
  * 
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER


@@ -20,17 +23,100 @@
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 

- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@

  */
 
 #ifndef        _KERN_DEBUG_H_
 #define _KERN_DEBUG_H_
 
  */
 
 #ifndef        _KERN_DEBUG_H_
 #define _KERN_DEBUG_H_
 

-#include <sys/appleapiopts.h>
+#include <sys/cdefs.h>
+#include <stdint.h>
+
+#ifdef __APPLE_API_PRIVATE
+#ifdef __APPLE_API_UNSTABLE
+
+struct thread_snapshot {
+       uint32_t                snapshot_magic;
+       uint32_t                nkern_frames;
+       uint32_t                nuser_frames;
+       uint64_t                wait_event;
+       uint64_t                continuation;
+       uint64_t                thread_id;
+       uint64_t                user_time;
+       uint64_t                system_time;
+       int32_t                 state;
+       int32_t                 sched_pri;   // scheduled (current) priority
+       int32_t                 sched_flags; // scheduler flags
+       char                    ss_flags;
+} __attribute__ ((packed));
+
+struct task_snapshot {
+       uint32_t                snapshot_magic;
+       int32_t                 pid;
+       uint32_t                nloadinfos;
+       uint64_t                user_time_in_terminated_threads;
+       uint64_t                system_time_in_terminated_threads;
+       int                             suspend_count; 
+       int                             task_size;    // pages
+       int                             faults;         // number of page faults
+       int                             pageins;        // number of actual pageins
+       int                             cow_faults;     // number of copy-on-write faults
+       char                    ss_flags;
+       /* We restrict ourselves to a statically defined
+        * (current as of 2009) length for the
+        * p_comm string, due to scoping issues (osfmk/bsd and user/kernel
+        * binary compatibility).
+        */
+       char                    p_comm[17];
+} __attribute__ ((packed));
+
+
+struct mem_and_io_snapshot {
+       uint32_t        snapshot_magic;
+       uint32_t        free_pages;
+       uint32_t        active_pages;
+       uint32_t        inactive_pages;
+       uint32_t        purgeable_pages;
+       uint32_t        wired_pages;
+       uint32_t        speculative_pages;
+       uint32_t        throttled_pages;
+       int                     busy_buffer_count;
+       uint32_t        pages_wanted;
+       uint32_t        pages_reclaimed;
+       uint8_t         pages_wanted_reclaimed_valid; // did mach_vm_pressure_monitor succeed?
+} __attribute__((packed));

 
 

-#ifdef __APPLE_API_PRIVATE
+
+enum {
+       kUser64_p = 0x1,
+       kKernel64_p = 0x2,
+       kHasDispatchSerial = 0x4,
+       kTerminatedSnapshot = 0x8,
+       kPidSuspended = 0x10,  // true for suspended task
+       kFrozen = 0x20         // true for hibernated task (along with pidsuspended)
+};
+
+#define VM_PRESSURE_TIME_WINDOW 5 /* seconds */
+
+enum {
+       STACKSHOT_GET_DQ = 0x1,
+       STACKSHOT_SAVE_LOADINFO = 0x2,
+       STACKSHOT_GET_GLOBAL_MEM_STATS = 0x4
+};
+
+#define STACKSHOT_THREAD_SNAPSHOT_MAGIC        0xfeedface
+#define STACKSHOT_TASK_SNAPSHOT_MAGIC          0xdecafbad
+#define STACKSHOT_MEM_AND_IO_SNAPSHOT_MAGIC    0xbfcabcde
+
+#endif /* __APPLE_API_UNSTABLE */
+#endif /* __APPLE_API_PRIVATE */
+
+#ifdef KERNEL_PRIVATE

 
 extern unsigned int    systemLogDiags;
 
 extern unsigned int    systemLogDiags;

+extern char debug_buf[];
+extern unsigned int    debug_boot_arg;
+extern char kernel_uuid[];

 
 #ifdef MACH_KERNEL_PRIVATE
 
 
 #ifdef MACH_KERNEL_PRIVATE
 


@@ -43,12 +129,12 @@ extern unsigned int     current_debugger;
 #define KDP_CUR_DB      0x1
 #define KDB_CUR_DB      0x2
 
 #define KDP_CUR_DB      0x1
 #define KDB_CUR_DB      0x2
 

-extern unsigned int     active_debugger;
+extern unsigned int    active_debugger;

 extern unsigned int    debug_mode; 
 extern unsigned int    debug_mode; 

-extern unsigned int            disableDebugOuput;
+extern unsigned int    disable_debug_output; 

 
 

-extern unsigned int panicDebugging;
-extern unsigned int    logPanicDataToScreen;
+extern unsigned int    panicDebugging;
+extern unsigned int    logPanicDataToScreen;

 
 extern int db_run_mode;
 
 
 extern int db_run_mode;
 


@@ -63,17 +149,26 @@ extern int db_run_mode;
 #define        STEP_COUNT      6
 #define STEP_TRACE     7       /* Show all calls to functions and returns */
 
 #define        STEP_COUNT      6
 #define STEP_TRACE     7       /* Show all calls to functions and returns */
 

-extern char    *panicstr;
-
-extern unsigned int    nestedpanic;
+extern const char              *panicstr;
+extern volatile unsigned int   nestedpanic;
+extern int unsigned long panic_caller;

 
 

-extern char *debug_buf;

 extern char *debug_buf_ptr;
 extern unsigned int debug_buf_size;
 
 extern void    debug_log_init(void);
 extern void    debug_putc(char);
 
 extern char *debug_buf_ptr;
 extern unsigned int debug_buf_size;
 
 extern void    debug_log_init(void);
 extern void    debug_putc(char);
 

+extern void    panic_init(void);
+
+int    packA(char *inbuf, uint32_t length, uint32_t buflen);
+void   unpackA(char *inbuf, uint32_t length);
+
+void   panic_display_system_configuration(void);
+void   panic_display_zprint(void);
+#if CONFIG_ZLEAKS
+void   panic_display_ztrace(void);
+#endif /* CONFIG_ZLEAKS */

 #endif /* MACH_KERNEL_PRIVATE */
 
 #define DB_HALT                0x1
 #endif /* MACH_KERNEL_PRIVATE */
 
 #define DB_HALT                0x1


@@ -85,7 +180,93 @@ extern void debug_putc(char);
 #define DB_ARP          0x40
 #define DB_KDP_BP_DIS   0x80
 #define DB_LOG_PI_SCRN 0x100
 #define DB_ARP          0x40
 #define DB_KDP_BP_DIS   0x80
 #define DB_LOG_PI_SCRN 0x100

+#define DB_KDP_GETC_ENA 0x200
+
+#define DB_KERN_DUMP_ON_PANIC          0x400 /* Trigger core dump on panic*/
+#define DB_KERN_DUMP_ON_NMI            0x800 /* Trigger core dump on NMI */
+#define DB_DBG_POST_CORE               0x1000 /*Wait in debugger after NMI core */
+#define DB_PANICLOG_DUMP               0x2000 /* Send paniclog on panic,not core*/
+#define DB_REBOOT_POST_CORE            0x4000 /* Attempt to reboot after
+                                               * post-panic crashdump/paniclog
+                                               * dump.
+                                               */
+
+#if DEBUG
+/*
+ * For the DEBUG kernel, support the following:
+ *     sysctl -w debug.kprint_syscall=<syscall_mask> 
+ *     sysctl -w debug.kprint_syscall_process=<p_comm>
+ * <syscall_mask> should be an OR of the masks below
+ * for UNIX, MACH, MDEP, or IPC. This debugging aid
+ * assumes the task/process is locked/wired and will
+ * not go away during evaluation. If no process is
+ * specified, all processes will be traced
+ */
+extern int debug_kprint_syscall;
+extern int debug_kprint_current_process(const char **namep);
+#define DEBUG_KPRINT_SYSCALL_PREDICATE_INTERNAL(mask, namep)                   \
+       ( (debug_kprint_syscall & (mask)) && debug_kprint_current_process(namep) )
+#define DEBUG_KPRINT_SYSCALL_MASK(mask, fmt, args...)  do {                    \
+               const char *dks_name = NULL;                                                                    \
+               if (DEBUG_KPRINT_SYSCALL_PREDICATE_INTERNAL(mask, &dks_name)) { \
+                       kprintf("[%s%s%p]" fmt, dks_name ? dks_name : "",                       \
+                                       dks_name ? "@" : "", current_thread(), args);                   \
+               }                                                                                                                               \
+       } while (0)
+#else /* !DEBUG */
+#define DEBUG_KPRINT_SYSCALL_PREDICATE_INTERNAL(mask, namep) (0)
+#define DEBUG_KPRINT_SYSCALL_MASK(mask, fmt, args...) do { } while (0) /* kprintf(fmt, args) */
+#endif /* !DEBUG */
+
+enum {
+       DEBUG_KPRINT_SYSCALL_UNIX_MASK = 1 << 0,
+       DEBUG_KPRINT_SYSCALL_MACH_MASK = 1 << 1,
+       DEBUG_KPRINT_SYSCALL_MDEP_MASK = 1 << 2,
+       DEBUG_KPRINT_SYSCALL_IPC_MASK  = 1 << 3
+};
+
+#define DEBUG_KPRINT_SYSCALL_PREDICATE(mask)                           \
+       DEBUG_KPRINT_SYSCALL_PREDICATE_INTERNAL(mask, NULL)
+#define DEBUG_KPRINT_SYSCALL_UNIX(fmt, args...)                                \
+       DEBUG_KPRINT_SYSCALL_MASK(DEBUG_KPRINT_SYSCALL_UNIX_MASK,fmt,args)
+#define DEBUG_KPRINT_SYSCALL_MACH(fmt, args...)                                \
+       DEBUG_KPRINT_SYSCALL_MASK(DEBUG_KPRINT_SYSCALL_MACH_MASK,fmt,args)
+#define DEBUG_KPRINT_SYSCALL_MDEP(fmt, args...)                                \
+       DEBUG_KPRINT_SYSCALL_MASK(DEBUG_KPRINT_SYSCALL_MDEP_MASK,fmt,args)
+#define DEBUG_KPRINT_SYSCALL_IPC(fmt, args...)                         \
+       DEBUG_KPRINT_SYSCALL_MASK(DEBUG_KPRINT_SYSCALL_IPC_MASK,fmt,args)
+
+#endif /* KERNEL_PRIVATE */
+
+__BEGIN_DECLS
+
+extern void panic(const char *string, ...) __printflike(1,2);
+
+#if KERNEL_PRIVATE
+void _consume_panic_args(int, ...);
+void panic_context(unsigned int reason, void *ctx, const char *string, ...);
+#endif
+
+#if CONFIG_NO_PANIC_STRINGS
+#if KERNEL_PRIVATE
+#define panic_plain(x, ...) _consume_panic_args( 0, ## __VA_ARGS__ )
+#define panic(x, ...) _consume_panic_args( 0, ## __VA_ARGS__ )
+#else
+#define panic_plain(...) (panic)((char *)0)
+#define panic(...)  (panic)((char *)0)
+#endif
+#else /* CONFIGS_NO_PANIC_STRINGS */
+#define panic_plain(ex, ...) \
+       (panic)(ex, ## __VA_ARGS__)
+#define __STRINGIFY(x) #x
+#define LINE_NUMBER(x) __STRINGIFY(x)
+#define PANIC_LOCATION __FILE__ ":" LINE_NUMBER(__LINE__)
+#define panic(ex, ...) \
+       (panic)(# ex "@" PANIC_LOCATION, ## __VA_ARGS__)
+#endif /* CONFIGS_NO_PANIC_STRINGS */

 
 

-#endif /* __APPLE_API_PRIVATE */
+void           populate_model_name(char *);
+unsigned       panic_active(void);
+__END_DECLS

 
 #endif /* _KERN_DEBUG_H_ */
 
 #endif /* _KERN_DEBUG_H_ */