bsd/hfs/hfs_dbg.h

   1 /*
   2  * Copyright (c) 2000, 2005 Apple Computer, 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 /*      hfs_dbg.h
  29  *
  30  *      (c) 1997 Apple Computer, Inc.  All Rights Reserved
  31  *
  32  *      hfs_dbg.h -- debugging macros for HFS file system.
  33  *
  34  *      HISTORY
  35  *      10-Nov-1998 Pat Dirks           Cleaned up definition of DBG_ASSERT to handle embedded '%' correctly.
  36  *      28-Apr-1998     Scott Roberts   Reorganized and added HFS_DEBUG_STAGE
  37  *      17-Nov-1997     Pat Dirks               Pat Dirks at Apple Computer
  38  *                                                              Derived from old hfs version.
  39  */
  40
  41 struct componentname;
  42 extern void Debugger(const char *message);
  43
  44 /* Define the debugging stage...
  45                 4 -> Do all, aggresive, call_kdp
  46                 3 -> debug asserts and debug err, panic instead of call_kdp
  47                 2 -> debug error, no kdb
  48                 1 -> very little, panic only
  49 */
  50 #ifndef HFS_DIAGNOSTIC
  51         #define HFS_DIAGNOSTIC 0
  52 #endif /* HFS_DIAGNOSTIC */
  53
  54 #ifndef HFS_DEBUG_STAGE
  55 #if HFS_DIAGNOSTIC
  56         #define HFS_DEBUG_STAGE 4
  57 #else
  58         #define HFS_DEBUG_STAGE 1
  59 #endif /* KERNEL */
  60 #endif  /* HFS_DEBUG_STAGE */
  61
  62 #ifdef KERNEL
  63   #define PRINTIT kprintf
  64 #else /* KERNEL */
  65   #define PRINTIT printf
  66 #endif /* KERNEL */
  67
  68 #if (HFS_DEBUG_STAGE > 3)
  69 #define DEBUG_BREAK Debugger("");
  70 #else
  71 #define DEBUG_BREAK
  72 #endif
  73
  74 #if (HFS_DEBUG_STAGE == 4)
  75     #define DEBUG_BREAK_MSG(PRINTF_ARGS) { PRINTIT PRINTF_ARGS; DEBUG_BREAK };
  76 #elif (HFS_DEBUG_STAGE == 3)
  77     #define DEBUG_BREAK_MSG(PRINTF_ARGS) { panic PRINTF_ARGS;};
  78 #else
  79     #define DEBUG_BREAK_MSG(PRINTF_ARGS) { PRINTIT PRINTF_ARGS; };
  80 #endif
  81
  82
  83 #define PRINT_DELAY
  84
  85 /*
  86  * Debugging macros.
  87  */
  88 #if     HFS_DIAGNOSTIC
  89 extern int hfs_dbg_all;
  90 extern int hfs_dbg_err;
  91
  92 #ifdef KERNEL
  93     #if (HFS_DEBUG_STAGE == 4)
  94                 char            gDebugAssertStr[255];
  95                 #define DBG_ASSERT(a) { if (!(a)) { \
  96                                 snprintf(gDebugAssertStr, sizeof (gDebugAssertStr), "Oops - File "__FILE__", line %d: assertion '%s' failed.\n", __LINE__, #a); \
  97                 Debugger(gDebugAssertStr); } }
  98         #else
  99 #define DBG_ASSERT(a) { if (!(a)) { panic("File "__FILE__", line %d: assertion '%s' failed.\n", __LINE__, #a); } }
 100     #endif /* HFS_DEBUG_STAGE */
 101 #else
 102     #define DBG_ASSERT(a) assert(a)
 103 #endif /* KERNEL */
 104
 105 #define DBG_ERR(x)      {               \
 106         if(hfs_dbg_all || hfs_dbg_err) {        \
 107         PRINTIT("%X: ", proc_selfpid()); \
 108             PRINTIT("HFS ERROR: "); \
 109             PRINTIT x;                  \
 110             PRINT_DELAY;  \
 111         };                      \
 112 }
 113
 114 #else   /* HFS_DIAGNOSTIC */
 115
 116 #define DBG_ASSERT(a)
 117 #define DBG_ERR(x)
 118
 119 #endif  /* HFS_DIAGNOSTIC */
 120