osfmk/kern/debug.h

   1 /*
   2  * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29 #ifndef _KERN_DEBUG_H_
  30 #define _KERN_DEBUG_H_
  31
  32 #include <sys/cdefs.h>
  33 #include <stdint.h>
  34 #include <uuid/uuid.h>
  35 #include <mach/boolean.h>
  36
  37 #ifndef XNU_KERNEL_PRIVATE
  38 #include <TargetConditionals.h>
  39 #endif
  40
  41 #ifdef __APPLE_API_PRIVATE
  42 #ifdef __APPLE_API_UNSTABLE
  43
  44 /* This value must always match IO_NUM_PRIORITIES defined in thread_info.h */
  45 #define STACKSHOT_IO_NUM_PRIORITIES     4
  46 /* This value must always match MAXTHREADNAMESIZE used in bsd */
  47 #define STACKSHOT_MAX_THREAD_NAME_SIZE  64
  48
  49 struct thread_snapshot {
  50         uint32_t                snapshot_magic;
  51         uint32_t                nkern_frames;
  52         uint32_t                nuser_frames;
  53         uint64_t                wait_event;
  54         uint64_t                continuation;
  55         uint64_t                thread_id;
  56         uint64_t                user_time;
  57         uint64_t                system_time;
  58         int32_t                 state;
  59         int32_t                 priority;    /* static priority */
  60         int32_t                 sched_pri;   /* scheduled (current) priority */
  61         int32_t                 sched_flags; /* scheduler flags */
  62         char                    ss_flags;
  63         char                    ts_qos;      /* effective qos */
  64         char                    ts_rqos;     /* requested qos */
  65         char                    ts_rqos_override; /* requested qos override */
  66         char                    io_tier;
  67         char                    _reserved[3]; /* pad for 4 byte alignement packing */
  68
  69         /*
  70          * I/O Statistics
  71          * XXX: These fields must be together
  72          */
  73         uint64_t                disk_reads_count;
  74         uint64_t                disk_reads_size;
  75         uint64_t                disk_writes_count;
  76         uint64_t                disk_writes_size;
  77         uint64_t                io_priority_count[STACKSHOT_IO_NUM_PRIORITIES];
  78         uint64_t                io_priority_size[STACKSHOT_IO_NUM_PRIORITIES];
  79         uint64_t                paging_count;
  80         uint64_t                paging_size;
  81         uint64_t                non_paging_count;
  82         uint64_t                non_paging_size;
  83         uint64_t                data_count;
  84         uint64_t                data_size;
  85         uint64_t                metadata_count;
  86         uint64_t                metadata_size;
  87         /* XXX: I/O Statistics end */
  88
  89         uint64_t                voucher_identifier; /* obfuscated voucher identifier */
  90         uint64_t                total_syscalls;
  91         char                    pth_name[STACKSHOT_MAX_THREAD_NAME_SIZE];
  92
  93 } __attribute__ ((packed));
  94
  95 struct thread_snapshot_v2 {
  96         uint64_t  ths_thread_id;
  97         uint64_t  ths_wait_event;
  98         uint64_t  ths_continuation;
  99         uint64_t  ths_total_syscalls;
 100         uint64_t  ths_voucher_identifier;
 101         uint64_t  ths_dqserialnum;
 102         uint64_t  ths_user_time;
 103         uint64_t  ths_sys_time;
 104         uint64_t  ths_ss_flags;
 105         uint64_t  ths_last_run_time;
 106         uint64_t  ths_last_made_runnable_time;
 107         uint32_t  ths_state;
 108         uint32_t  ths_sched_flags;
 109         int16_t   ths_base_priority;
 110         int16_t   ths_sched_priority;
 111         uint8_t   ths_eqos;
 112         uint8_t   ths_rqos;
 113         uint8_t   ths_rqos_override;
 114         uint8_t   ths_io_tier;
 115 } __attribute__ ((packed));
 116
 117 struct task_snapshot {
 118         uint32_t                snapshot_magic;
 119         int32_t                 pid;
 120         uint64_t                uniqueid;
 121         uint64_t                user_time_in_terminated_threads;
 122         uint64_t                system_time_in_terminated_threads;
 123         uint8_t                 shared_cache_identifier[16];
 124         uint64_t                shared_cache_slide;
 125         uint32_t                nloadinfos;
 126         int                     suspend_count;
 127         int                     task_size;      /* pages */
 128         int                     faults;         /* number of page faults */
 129         int                     pageins;        /* number of actual pageins */
 130         int                     cow_faults;     /* number of copy-on-write faults */
 131         uint32_t                ss_flags;
 132         uint64_t                p_start_sec;    /* from the bsd proc struct */
 133         uint64_t                p_start_usec;   /* from the bsd proc struct */
 134
 135         /*
 136          * We restrict ourselves to a statically defined
 137          * (current as of 2009) length for the
 138          * p_comm string, due to scoping issues (osfmk/bsd and user/kernel
 139          * binary compatibility).
 140          */
 141         char                    p_comm[17];
 142         uint32_t                was_throttled;
 143         uint32_t                did_throttle;
 144         uint32_t                latency_qos;
 145         /*
 146          * I/O Statistics
 147          * XXX: These fields must be together.
 148          */
 149         uint64_t                disk_reads_count;
 150         uint64_t                disk_reads_size;
 151         uint64_t                disk_writes_count;
 152         uint64_t                disk_writes_size;
 153         uint64_t                io_priority_count[STACKSHOT_IO_NUM_PRIORITIES];
 154         uint64_t                io_priority_size[STACKSHOT_IO_NUM_PRIORITIES];
 155         uint64_t                paging_count;
 156         uint64_t                paging_size;
 157         uint64_t                non_paging_count;
 158         uint64_t                non_paging_size;
 159         uint64_t                data_count;
 160         uint64_t                data_size;
 161         uint64_t                metadata_count;
 162         uint64_t                metadata_size;
 163         /* XXX: I/O Statistics end */
 164
 165         uint32_t                donating_pid_count;
 166
 167 } __attribute__ ((packed));
 168
 169 struct io_stats_snapshot
 170 {
 171         /*
 172          * I/O Statistics
 173          * XXX: These fields must be together.
 174          */
 175         uint64_t         ss_disk_reads_count;
 176         uint64_t         ss_disk_reads_size;
 177         uint64_t         ss_disk_writes_count;
 178         uint64_t         ss_disk_writes_size;
 179         uint64_t         ss_io_priority_count[STACKSHOT_IO_NUM_PRIORITIES];
 180         uint64_t         ss_io_priority_size[STACKSHOT_IO_NUM_PRIORITIES];
 181         uint64_t         ss_paging_count;
 182         uint64_t         ss_paging_size;
 183         uint64_t         ss_non_paging_count;
 184         uint64_t         ss_non_paging_size;
 185         uint64_t         ss_data_count;
 186         uint64_t         ss_data_size;
 187         uint64_t         ss_metadata_count;
 188         uint64_t         ss_metadata_size;
 189         /* XXX: I/O Statistics end */
 190
 191 } __attribute__ ((packed));
 192
 193 struct task_snapshot_v2 {
 194         uint64_t  ts_unique_pid;
 195         uint64_t  ts_ss_flags;
 196         uint64_t  ts_user_time_in_terminated_threads;
 197         uint64_t  ts_system_time_in_terminated_threads;
 198         uint64_t  ts_p_start_sec;
 199         uint64_t  ts_task_size;
 200         uint64_t  ts_max_resident_size;
 201         uint32_t  ts_suspend_count;
 202         uint32_t  ts_faults;
 203         uint32_t  ts_pageins;
 204         uint32_t  ts_cow_faults;
 205         uint32_t  ts_was_throttled;
 206         uint32_t  ts_did_throttle;
 207         uint32_t  ts_latency_qos;
 208         int32_t   ts_pid;
 209         char      ts_p_comm[32];
 210 } __attribute__ ((packed));
 211
 212 struct micro_snapshot {
 213         uint32_t                snapshot_magic;
 214         uint32_t                ms_cpu;  /* cpu number this snapshot was recorded on */
 215         uint64_t                ms_time; /* time at sample (seconds) */
 216         uint64_t                ms_time_microsecs;
 217         uint8_t                 ms_flags;
 218         uint16_t                ms_opaque_flags;        /* managed by external entity, e.g. fdrmicrod */
 219 } __attribute__ ((packed));
 220
 221 struct mem_and_io_snapshot {
 222         uint32_t        snapshot_magic;
 223         uint32_t        free_pages;
 224         uint32_t        active_pages;
 225         uint32_t        inactive_pages;
 226         uint32_t        purgeable_pages;
 227         uint32_t        wired_pages;
 228         uint32_t        speculative_pages;
 229         uint32_t        throttled_pages;
 230         uint32_t        filebacked_pages;
 231         uint32_t        compressions;
 232         uint32_t        decompressions;
 233         uint32_t        compressor_size;
 234         int             busy_buffer_count;
 235         uint32_t        pages_wanted;
 236         uint32_t        pages_reclaimed;
 237         uint8_t         pages_wanted_reclaimed_valid; // did mach_vm_pressure_monitor succeed?
 238 } __attribute__((packed));
 239
 240 struct stack_snapshot_frame32 {
 241         uint32_t lr;
 242     uint32_t sp;
 243 };
 244
 245 struct stack_snapshot_frame64 {
 246     uint64_t lr;
 247     uint64_t sp;
 248 };
 249
 250 struct _dyld_cache_header
 251 {
 252     char        magic[16];                              // e.g. "dyld_v0    i386"
 253     uint32_t    mappingOffset;          // file offset to first dyld_cache_mapping_info
 254     uint32_t    mappingCount;           // number of dyld_cache_mapping_info entries
 255     uint32_t    imagesOffset;           // file offset to first dyld_cache_image_info
 256     uint32_t    imagesCount;            // number of dyld_cache_image_info entries
 257     uint64_t    dyldBaseAddress;        // base address of dyld when cache was built
 258     uint64_t    codeSignatureOffset;    // file offset of code signature blob
 259     uint64_t    codeSignatureSize;      // size of code signature blob (zero means to end of file)
 260     uint64_t    slideInfoOffset;        // file offset of kernel slid info
 261     uint64_t    slideInfoSize;          // size of kernel slid info
 262     uint64_t    localSymbolsOffset;     // file offset of where local symbols are stored
 263     uint64_t    localSymbolsSize;       // size of local symbols information
 264     uint8_t     uuid[16];               // unique value for each shared cache file
 265 };
 266
 267 struct dyld_uuid_info_32 {
 268     uint32_t imageLoadAddress; /* base address image is mapped at */
 269         uuid_t   imageUUID;
 270 };
 271
 272 struct dyld_uuid_info_64 {
 273     uint64_t imageLoadAddress; /* base address image is mapped at */
 274     uuid_t   imageUUID;
 275 };
 276
 277 enum micro_snapshot_flags {
 278         kInterruptRecord        = 0x1,
 279         kTimerArmingRecord      = 0x2,
 280         kUserMode                       = 0x4, /* interrupted usermode, or armed by usermode */
 281 };
 282
 283 /*
 284  * Flags used in the following assortment of snapshots.
 285  */
 286 enum generic_snapshot_flags {
 287         kUser64_p                       = 0x1,
 288         kKernel64_p             = 0x2
 289 };
 290
 291 enum task_snapshot_flags {
 292         kTaskRsrcFlagged      = 0x4, // In the EXC_RESOURCE danger zone?
 293         kTerminatedSnapshot   = 0x8,
 294         kPidSuspended         = 0x10, // true for suspended task
 295         kFrozen               = 0x20, // true for hibernated task (along with pidsuspended)
 296         kTaskDarwinBG         = 0x40,
 297         kTaskExtDarwinBG      = 0x80,
 298         kTaskVisVisible       = 0x100,
 299         kTaskVisNonvisible    = 0x200,
 300         kTaskIsForeground     = 0x400,
 301         kTaskIsBoosted        = 0x800,
 302         kTaskIsSuppressed     = 0x1000,
 303         kTaskIsTimerThrottled = 0x2000, /* deprecated */
 304         kTaskIsImpDonor       = 0x4000,
 305         kTaskIsLiveImpDonor   = 0x8000
 306 };
 307
 308 enum thread_snapshot_flags {
 309         kHasDispatchSerial = 0x4,
 310         kStacksPCOnly      = 0x8,  /* Stack traces have no frame pointers. */
 311         kThreadDarwinBG    = 0x10, /* Thread is darwinbg */
 312         kThreadIOPassive   = 0x20, /* Thread uses passive IO */
 313         kThreadSuspended   = 0x40, /* Thread is suspended */
 314         kThreadTruncatedBT = 0x80, /* Unmapped pages caused truncated backtrace */
 315         kGlobalForcedIdle  = 0x100, /* Thread performs global forced idle */
 316         kThreadDecompressedBT = 0x200,   /* Some thread stack pages were decompressed as part of BT */
 317         kThreadFaultedBT = 0x400   /* Some thread stack pages were faulted in as part of BT */
 318 };
 319
 320 #define VM_PRESSURE_TIME_WINDOW 5 /* seconds */
 321
 322 enum {
 323         STACKSHOT_GET_DQ                                                        = 0x01,
 324         STACKSHOT_SAVE_LOADINFO                                         = 0x02,
 325         STACKSHOT_GET_GLOBAL_MEM_STATS                          = 0x04,
 326         STACKSHOT_SAVE_KEXT_LOADINFO                            = 0x08,
 327         STACKSHOT_GET_MICROSTACKSHOT                            = 0x10,
 328         STACKSHOT_GLOBAL_MICROSTACKSHOT_ENABLE          = 0x20,
 329         STACKSHOT_GLOBAL_MICROSTACKSHOT_DISABLE         = 0x40,
 330         STACKSHOT_SET_MICROSTACKSHOT_MARK                       = 0x80,
 331         STACKSHOT_SAVE_KERNEL_FRAMES_ONLY                       = 0x100,
 332         STACKSHOT_GET_BOOT_PROFILE                                      = 0x200,
 333         STACKSHOT_GET_WINDOWED_MICROSTACKSHOTS          = 0x400,
 334         STACKSHOT_WINDOWED_MICROSTACKSHOTS_ENABLE       = 0x800,
 335         STACKSHOT_WINDOWED_MICROSTACKSHOTS_DISABLE      = 0x1000,
 336         STACKSHOT_SAVE_IMP_DONATION_PIDS                = 0x2000,
 337         STACKSHOT_SAVE_IN_KERNEL_BUFFER                 = 0x4000,
 338         STACKSHOT_RETRIEVE_EXISTING_BUFFER              = 0x8000,
 339         STACKSHOT_KCDATA_FORMAT                         = 0x10000,
 340         STACKSHOT_ENABLE_FAULTING                       = 0x20000
 341 };
 342
 343 /*
 344  * NOTE: Please update libkdd/kcdata/kcdtypes.c if you make any changes
 345  * in STACKSHOT_KCTYPE_* types.
 346  */
 347 #define STACKSHOT_KCTYPE_IOSTATS                0x901  /* io_stats_snapshot */
 348 #define STACKSHOT_KCTYPE_GLOBAL_MEM_STATS       0x902  /* struct mem_and_io_snapshot */
 349 #define STACKSHOT_KCCONTAINER_TASK              0x903
 350 #define STACKSHOT_KCCONTAINER_THREAD            0x904
 351 #define STACKSHOT_KCTYPE_TASK_SNAPSHOT          0x905  /* task_snapshot_v2 */
 352 #define STACKSHOT_KCTYPE_THREAD_SNAPSHOT        0x906  /* thread_snapshot_v2 */
 353 #define STASKSHOT_KCTYPE_DONATING_PIDS          0x907  /* int[] */
 354 #define STACKSHOT_KCTYPE_SHAREDCACHE_LOADINFO   0x908  /* same as KCDATA_TYPE_LIBRARY_LOADINFO64 */
 355 #define STACKSHOT_KCTYPE_THREAD_NAME            0x909  /* char[] */
 356 #define STACKSHOT_KCTYPE_KERN_STACKFRAME        0x90A  /* struct stack_snapshot_frame32 */
 357 #define STACKSHOT_KCTYPE_KERN_STACKFRAME64      0x90B  /* struct stack_snapshot_frame64 */
 358 #define STACKSHOT_KCTYPE_USER_STACKFRAME        0x90C  /* struct stack_snapshot_frame32 */
 359 #define STACKSHOT_KCTYPE_USER_STACKFRAME64      0x90D  /* struct stack_snapshot_frame64 */
 360 #define STACKSHOT_KCTYPE_BOOTARGS               0x90E  /* boot args string */
 361 #define STACKSHOT_KCTYPE_OSVERSION              0x90F  /* os version string */
 362 #define STACKSHOT_KCTYPE_KERN_PAGE_SIZE         0x910  /* kernel page size in uint32_t */
 363 #define STACKSHOT_KCTYPE_JETSAM_LEVEL           0x911  /* jetsam level in uint32_t */
 364
 365
 366 #define STACKSHOT_THREAD_SNAPSHOT_MAGIC         0xfeedface
 367 #define STACKSHOT_TASK_SNAPSHOT_MAGIC           0xdecafbad
 368 #define STACKSHOT_MEM_AND_IO_SNAPSHOT_MAGIC     0xbfcabcde
 369 #define STACKSHOT_MICRO_SNAPSHOT_MAGIC          0x31c54011
 370
 371 #endif /* __APPLE_API_UNSTABLE */
 372 #endif /* __APPLE_API_PRIVATE */
 373
 374 #ifdef  KERNEL_PRIVATE
 375
 376 extern unsigned int     systemLogDiags;
 377 #if (!defined(__arm64__) && !defined(NAND_PANIC_DEVICE)) || defined(LEGACY_PANIC_LOGS)
 378 extern char debug_buf[];
 379 #endif
 380 extern char *debug_buf_addr;
 381 extern unsigned int     debug_boot_arg;
 382 extern unsigned char *kernel_uuid;
 383 extern char kernel_uuid_string[];
 384
 385 #ifdef MACH_KERNEL_PRIVATE
 386
 387 extern boolean_t        doprnt_hide_pointers;
 388
 389 extern unsigned int     halt_in_debugger;
 390
 391 extern unsigned int     switch_debugger;
 392
 393 extern unsigned int     current_debugger;
 394 #define NO_CUR_DB       0x0
 395 #define KDP_CUR_DB      0x1
 396 #define KDB_CUR_DB      0x2
 397
 398 extern unsigned int     active_debugger;
 399 extern unsigned int     debug_mode;
 400 extern unsigned int     disable_debug_output;
 401
 402 extern unsigned int     panicDebugging;
 403 extern unsigned int     logPanicDataToScreen;
 404 extern unsigned int     kdebug_serial;
 405
 406 extern int db_run_mode;
 407
 408 /* modes the system may be running in */
 409
 410 #define STEP_NONE       0
 411 #define STEP_ONCE       1
 412 #define STEP_RETURN     2
 413 #define STEP_CALLT      3
 414 #define STEP_CONTINUE   4
 415 #define STEP_INVISIBLE  5
 416 #define STEP_COUNT      6
 417 #define STEP_TRACE      7       /* Show all calls to functions and returns */
 418
 419 extern const char               *panicstr;
 420 extern volatile unsigned int    nestedpanic;
 421 extern int unsigned long panic_caller;
 422
 423 extern char *debug_buf_ptr;
 424 extern unsigned int debug_buf_size;
 425
 426 extern void     debug_log_init(void);
 427 extern void     debug_putc(char);
 428
 429 extern void     panic_init(void);
 430
 431 int     packA(char *inbuf, uint32_t length, uint32_t buflen);
 432 void    unpackA(char *inbuf, uint32_t length);
 433
 434 void    panic_display_system_configuration(void);
 435 void    panic_display_zprint(void);
 436 void    panic_display_kernel_aslr(void);
 437 void    panic_display_hibb(void);
 438 void    panic_display_model_name(void);
 439 void    panic_display_kernel_uuid(void);
 440 #if CONFIG_ZLEAKS
 441 void    panic_display_ztrace(void);
 442 #endif /* CONFIG_ZLEAKS */
 443 #if CONFIG_ECC_LOGGING
 444 void    panic_display_ecc_errors(void);
 445 #endif /* CONFIG_ECC_LOGGING */
 446 #endif /* MACH_KERNEL_PRIVATE */
 447
 448 #define DB_HALT         0x1
 449 #define DB_PRT          0x2
 450 #define DB_NMI          0x4
 451 #define DB_KPRT         0x8
 452 #define DB_KDB          0x10
 453 #define DB_SLOG         0x20
 454 #define DB_ARP          0x40
 455 #define DB_KDP_BP_DIS   0x80
 456 #define DB_LOG_PI_SCRN  0x100
 457 #define DB_KDP_GETC_ENA 0x200
 458
 459 #define DB_KERN_DUMP_ON_PANIC           0x400 /* Trigger core dump on panic*/
 460 #define DB_KERN_DUMP_ON_NMI             0x800 /* Trigger core dump on NMI */
 461 #define DB_DBG_POST_CORE                0x1000 /*Wait in debugger after NMI core */
 462 #define DB_PANICLOG_DUMP                0x2000 /* Send paniclog on panic,not core*/
 463 #define DB_REBOOT_POST_CORE             0x4000 /* Attempt to reboot after
 464                                                 * post-panic crashdump/paniclog
 465                                                 * dump.
 466                                                 */
 467 #define DB_NMI_BTN_ENA          0x8000  /* Enable button to directly trigger NMI */
 468 #define DB_PRT_KDEBUG           0x10000 /* kprintf KDEBUG traces */
 469 #define DB_DISABLE_LOCAL_CORE   0x20000 /* ignore local core dump support */
 470
 471 #if DEBUG
 472 /*
 473  * For the DEBUG kernel, support the following:
 474  *      sysctl -w debug.kprint_syscall=<syscall_mask>
 475  *      sysctl -w debug.kprint_syscall_process=<p_comm>
 476  * <syscall_mask> should be an OR of the masks below
 477  * for UNIX, MACH, MDEP, or IPC. This debugging aid
 478  * assumes the task/process is locked/wired and will
 479  * not go away during evaluation. If no process is
 480  * specified, all processes will be traced
 481  */
 482 extern int debug_kprint_syscall;
 483 extern int debug_kprint_current_process(const char **namep);
 484 #define DEBUG_KPRINT_SYSCALL_PREDICATE_INTERNAL(mask, namep)                    \
 485         ( (debug_kprint_syscall & (mask)) && debug_kprint_current_process(namep) )
 486 #define DEBUG_KPRINT_SYSCALL_MASK(mask, fmt, args...)   do {                    \
 487                 const char *dks_name = NULL;                                                                    \
 488                 if (DEBUG_KPRINT_SYSCALL_PREDICATE_INTERNAL(mask, &dks_name)) { \
 489                         kprintf("[%s%s%p]" fmt, dks_name ? dks_name : "",                       \
 490                                         dks_name ? "@" : "", current_thread(), args);                   \
 491                 }                                                                                                                               \
 492         } while (0)
 493 #else /* !DEBUG */
 494 #define DEBUG_KPRINT_SYSCALL_PREDICATE_INTERNAL(mask, namep) (0)
 495 #define DEBUG_KPRINT_SYSCALL_MASK(mask, fmt, args...) do { } while (0) /* kprintf(fmt, args) */
 496 #endif /* !DEBUG */
 497
 498 enum {
 499         DEBUG_KPRINT_SYSCALL_UNIX_MASK = 1 << 0,
 500         DEBUG_KPRINT_SYSCALL_MACH_MASK = 1 << 1,
 501         DEBUG_KPRINT_SYSCALL_MDEP_MASK = 1 << 2,
 502         DEBUG_KPRINT_SYSCALL_IPC_MASK  = 1 << 3
 503 };
 504
 505 #define DEBUG_KPRINT_SYSCALL_PREDICATE(mask)                            \
 506         DEBUG_KPRINT_SYSCALL_PREDICATE_INTERNAL(mask, NULL)
 507 #define DEBUG_KPRINT_SYSCALL_UNIX(fmt, args...)                         \
 508         DEBUG_KPRINT_SYSCALL_MASK(DEBUG_KPRINT_SYSCALL_UNIX_MASK,fmt,args)
 509 #define DEBUG_KPRINT_SYSCALL_MACH(fmt, args...)                         \
 510         DEBUG_KPRINT_SYSCALL_MASK(DEBUG_KPRINT_SYSCALL_MACH_MASK,fmt,args)
 511 #define DEBUG_KPRINT_SYSCALL_MDEP(fmt, args...)                         \
 512         DEBUG_KPRINT_SYSCALL_MASK(DEBUG_KPRINT_SYSCALL_MDEP_MASK,fmt,args)
 513 #define DEBUG_KPRINT_SYSCALL_IPC(fmt, args...)                          \
 514         DEBUG_KPRINT_SYSCALL_MASK(DEBUG_KPRINT_SYSCALL_IPC_MASK,fmt,args)
 515
 516 #endif  /* KERNEL_PRIVATE */
 517
 518 #ifdef KERNEL
 519
 520 __BEGIN_DECLS
 521
 522 extern void panic(const char *string, ...) __printflike(1,2);
 523
 524 #if KERNEL_PRIVATE
 525 void _consume_panic_args(int, ...);
 526 void panic_context(unsigned int reason, void *ctx, const char *string, ...);
 527 #endif
 528
 529 #if CONFIG_NO_PANIC_STRINGS
 530 #if KERNEL_PRIVATE
 531 #define panic_plain(x, ...) _consume_panic_args( 0, ## __VA_ARGS__ )
 532 #define panic(x, ...) _consume_panic_args( 0, ## __VA_ARGS__ )
 533 #else
 534 #define panic_plain(...) (panic)((char *)0)
 535 #define panic(...)  (panic)((char *)0)
 536 #endif
 537 #else /* CONFIGS_NO_PANIC_STRINGS */
 538 #define panic_plain(ex, ...) \
 539         (panic)(ex, ## __VA_ARGS__)
 540 #define __STRINGIFY(x) #x
 541 #define LINE_NUMBER(x) __STRINGIFY(x)
 542 #define PANIC_LOCATION __FILE__ ":" LINE_NUMBER(__LINE__)
 543 #define panic(ex, ...) \
 544         (panic)(# ex "@" PANIC_LOCATION, ## __VA_ARGS__)
 545 #endif /* CONFIGS_NO_PANIC_STRINGS */
 546
 547 #ifdef KERNEL_PRIVATE
 548 void            populate_model_name(char *);
 549 unsigned        panic_active(void);
 550 #endif
 551
 552 __END_DECLS
 553
 554 #endif /* KERNEL */
 555
 556 #endif  /* _KERN_DEBUG_H_ */