hybris/common/jb/linker_debug.h

   1 /*
   2  * Copyright (C) 2008-2010 The Android Open Source Project
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  *  * Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  *  * Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in
  12  *    the documentation and/or other materials provided with the
  13  *    distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  16  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  17  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  18  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  19  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
  22  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  25  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28
  29 #ifndef _LINKER_DEBUG_H_
  30 #define _LINKER_DEBUG_H_
  31
  32 #include <stdio.h>
  33
  34 #ifndef LINKER_DEBUG
  35 #error LINKER_DEBUG should be defined to either 1 or 0 in Android.mk
  36 #endif
  37
  38 #define TRACE_DEBUG          1
  39 #define DO_TRACE_LOOKUP      1
  40 #define DO_TRACE_RELO        1
  41 #define TIMING               0
  42 #define STATS                0
  43 #define COUNT_PAGES          0
  44
  45 /*********************************************************************
  46  * You shouldn't need to modify anything below unless you are adding
  47  * more debugging information.
  48  *
  49  * To enable/disable specific debug options, change the defines above
  50  *********************************************************************/
  51
  52
  53 /*********************************************************************/
  54 #undef TRUE
  55 #undef FALSE
  56 #define TRUE                 1
  57 #define FALSE                0
  58
  59 /* Only use printf() during debugging.  We have seen occasional memory
  60  * corruption when the linker uses printf().
  61  */
  62 #if LINKER_DEBUG
  63 #include "linker_format.h"
  64 extern int debug_verbosity;
  65 extern int debug_stdout;
  66 extern int format_log(int, const char *, const char *, ...);
  67 extern int format_fd(int, const char *, ...);
  68 #define _PRINTVF(v,f,x...)                                        \
  69     do {                                                          \
  70         if (debug_verbosity > (v))                                \
  71             if (debug_stdout)                                     \
  72                 format_fd(1, x);                                  \
  73             else                                                  \
  74                 format_log(5-(v),"linker",x);                     \
  75     } while (0)
  76 #else /* !LINKER_DEBUG */
  77 #define _PRINTVF(v,f,x...)   do {} while(0)
  78 #endif /* LINKER_DEBUG */
  79
  80 #define PRINT(x...)          _PRINTVF(-1, FALSE, x)
  81 #define INFO(x...)           _PRINTVF(0, TRUE, x)
  82 #define TRACE(x...)          _PRINTVF(1, TRUE, x)
  83 #define WARN(fmt,args...)    \
  84         _PRINTVF(-1, TRUE, "%s:%d| WARNING: " fmt, __FILE__, __LINE__, ## args)
  85 #define ERROR(fmt,args...)    \
  86         _PRINTVF(-1, TRUE, "%s:%d| ERROR: " fmt, __FILE__, __LINE__, ## args)
  87
  88
  89 #if TRACE_DEBUG
  90 #define DEBUG(x...)          _PRINTVF(2, TRUE, "DEBUG: " x)
  91 #else /* !TRACE_DEBUG */
  92 #define DEBUG(x...)          do {} while (0)
  93 #endif /* TRACE_DEBUG */
  94
  95 #if LINKER_DEBUG
  96 #define TRACE_TYPE(t,x...)   do { if (DO_TRACE_##t) { TRACE(x); } } while (0)
  97 #else  /* !LINKER_DEBUG */
  98 #define TRACE_TYPE(t,x...)   do {} while (0)
  99 #endif /* LINKER_DEBUG */
 100
 101 #if STATS
 102 #define RELOC_ABSOLUTE        0
 103 #define RELOC_RELATIVE        1
 104 #define RELOC_COPY            2
 105 #define RELOC_SYMBOL          3
 106 #define NUM_RELOC_STATS       4
 107
 108 struct _link_stats {
 109     int reloc[NUM_RELOC_STATS];
 110 };
 111 extern struct _link_stats linker_stats;
 112
 113 #define COUNT_RELOC(type)                                 \
 114         do { if (type >= 0 && type < NUM_RELOC_STATS) {   \
 115                 linker_stats.reloc[type] += 1;            \
 116              } else  {                                    \
 117                 PRINT("Unknown reloc stat requested\n");  \
 118              }                                            \
 119            } while(0)
 120 #else /* !STATS */
 121 #define COUNT_RELOC(type)     do {} while(0)
 122 #endif /* STATS */
 123
 124 #if TIMING
 125 #undef WARN
 126 #define WARN(x...)           do {} while (0)
 127 #endif /* TIMING */
 128
 129 #if COUNT_PAGES
 130 extern unsigned bitmask[];
 131 #define MARK(offset)         do {                                        \
 132         bitmask[((offset) >> 12) >> 3] |= (1 << (((offset) >> 12) & 7)); \
 133     } while(0)
 134 #else
 135 #define MARK(x)              do {} while (0)
 136 #endif
 137
 138 #define DEBUG_DUMP_PHDR(phdr, name, pid) do { \
 139         DEBUG("%5d %s (phdr = 0x%08x)\n", (pid), (name), (unsigned)(phdr));   \
 140         DEBUG("\t\tphdr->offset   = 0x%08x\n", (unsigned)((phdr)->p_offset)); \
 141         DEBUG("\t\tphdr->p_vaddr  = 0x%08x\n", (unsigned)((phdr)->p_vaddr));  \
 142         DEBUG("\t\tphdr->p_paddr  = 0x%08x\n", (unsigned)((phdr)->p_paddr));  \
 143         DEBUG("\t\tphdr->p_filesz = 0x%08x\n", (unsigned)((phdr)->p_filesz)); \
 144         DEBUG("\t\tphdr->p_memsz  = 0x%08x\n", (unsigned)((phdr)->p_memsz));  \
 145         DEBUG("\t\tphdr->p_flags  = 0x%08x\n", (unsigned)((phdr)->p_flags));  \
 146         DEBUG("\t\tphdr->p_align  = 0x%08x\n", (unsigned)((phdr)->p_align));  \
 147     } while (0)
 148
 149 #endif /* _LINKER_DEBUG_H_ */