memcheck/tests/leak.h

   1 // These counters are used to get a delta between leak counts at startup
   2 // (eg. due to libc) and later on.  Necessary to get reliable leak tests
   3 // across different platforms.
   4 #define DECLARE_LEAK_COUNTERS \
   5    long L0_bytes = 0, L_bytes = 0, L0_blocks = 0, L_blocks = 0; \
   6    long D0_bytes = 0, D_bytes = 0, D0_blocks = 0, D_blocks = 0; \
   7    long R0_bytes = 0, R_bytes = 0, R0_blocks = 0, R_blocks = 0; \
   8    long S0_bytes = 0, S_bytes = 0, S0_blocks = 0, S_blocks = 0
   9
  10 // Set a baseline, in case allocations have already happened.
  11 #define GET_INITIAL_LEAK_COUNTS \
  12    do { \
  13       VALGRIND_DO_QUICK_LEAK_CHECK; \
  14       VALGRIND_COUNT_LEAKS(      L0_bytes,  D0_bytes,  R0_bytes,  S0_bytes );\
  15       VALGRIND_COUNT_LEAK_BLOCKS(L0_blocks, D0_blocks, R0_blocks, S0_blocks); \
  16    } while (0)
  17
  18 // Set a baseline, in case allocations have already happened.
  19 #define GET_FINAL_LEAK_COUNTS \
  20    do { \
  21       VALGRIND_DO_QUICK_LEAK_CHECK; \
  22       VALGRIND_COUNT_LEAKS(      L_bytes,  D_bytes,  R_bytes,  S_bytes ); \
  23       VALGRIND_COUNT_LEAK_BLOCKS(L_blocks, D_blocks, R_blocks, S_blocks); \
  24       L_bytes -= L0_bytes;  L_blocks -= L0_blocks; \
  25       D_bytes -= D0_bytes;  D_blocks -= D0_blocks; \
  26       R_bytes -= R0_bytes;  R_blocks -= R0_blocks; \
  27       S_bytes -= S0_bytes;  S_blocks -= S0_blocks; \
  28    } while (0)
  29
  30 // Print leak counts.  When used in conjunction with -q the normal counts
  31 // aren't shown, which is what we want.
  32 #define PRINT_LEAK_COUNTS(where) \
  33    do { \
  34       fprintf(where,"leaked:     %3ld bytes in %2ld blocks\n", \
  35                      L_bytes,L_blocks); \
  36       fprintf(where,"dubious:    %3ld bytes in %2ld blocks\n", \
  37                      D_bytes,D_blocks); \
  38       fprintf(where,"reachable:  %3ld bytes in %2ld blocks\n", \
  39                      R_bytes,R_blocks); \
  40       fprintf(where,"suppressed: %3ld bytes in %2ld blocks\n", \
  41                      S_bytes,S_blocks); \
  42    } while (0)
  43
  44 /* Upon a call to a function, some architectures store pointers into
  45  * into registers.  Valgrind may consider these registers when determining
  46  * whether an address is reachable, so we need to zero-out these registers
  47  * as needed.
  48  */
  49 #if defined __powerpc__
  50 #define CLEAR_CALLER_SAVED_REGS \
  51   do { \
  52    __asm__ __volatile__( "li 3, 0" : : :/*trash*/"r3" ); \
  53    __asm__ __volatile__( "li 4, 0" : : :/*trash*/"r4" ); \
  54    __asm__ __volatile__( "li 5, 0" : : :/*trash*/"r5" ); \
  55    __asm__ __volatile__( "li 6, 0" : : :/*trash*/"r6" ); \
  56    __asm__ __volatile__( "li 7, 0" : : :/*trash*/"r7" ); \
  57    __asm__ __volatile__( "li 8, 0" : : :/*trash*/"r8" ); \
  58    __asm__ __volatile__( "li 9, 0" : : :/*trash*/"r9" ); \
  59    __asm__ __volatile__( "li 10, 0" : : :/*trash*/"r10" ); \
  60    __asm__ __volatile__( "li 11, 0" : : :/*trash*/"r11" ); \
  61    __asm__ __volatile__( "li 12, 0" : : :/*trash*/"r12" ); \
  62   } while (0)
  63 #elif defined(__nanomips__)
  64 #define CLEAR_CALLER_SAVED_REGS                                             \
  65    do {                                                                     \
  66       __asm__ __volatile__ (".set push       \n\t"                          \
  67                             ".set noat       \n\t"                          \
  68                             "move $at, $zero \n\t"                          \
  69                             "move $t4, $zero \n\t"                          \
  70                             "move $t5, $zero \n\t"                          \
  71                             "move $a0, $zero \n\t"                          \
  72                             "move $a1, $zero \n\t"                          \
  73                             "move $a2, $zero \n\t"                          \
  74                             "move $a3, $zero \n\t"                          \
  75                             "move $a4, $zero \n\t"                          \
  76                             "move $a5, $zero \n\t"                          \
  77                             "move $a6, $zero \n\t"                          \
  78                             "move $a7, $zero \n\t"                          \
  79                             "move $t0, $zero \n\t"                          \
  80                             "move $t1, $zero \n\t"                          \
  81                             "move $t2, $zero \n\t"                          \
  82                             "move $t3, $zero \n\t"                          \
  83                             "move $t8, $zero \n\t"                          \
  84                             "move $t9, $zero \n\t"                          \
  85                             ".set pop        \n\t"                          \
  86                             : : : "$at", "$t4", "$t5", "$a0", "$a1", "$a2", \
  87                                   "$a3", "$a4", "$a5", "$a6", "$a7", "$t0", \
  88                                   "$t1", "$t2", "$t3", "$t8", "$t9");       \
  89    } while (0)
  90 #elif (__mips == 32)
  91 #define CLEAR_CALLER_SAVED_REGS                                              \
  92    do {                                                                      \
  93       __asm__ __volatile__ (".set push    \n\t"                              \
  94                             ".set noat    \n\t"                              \
  95                             "move $1,  $0 \n\t"   /* at = 0 */               \
  96                             "move $2,  $0 \n\t"   /* v0 = 0 */               \
  97                             "move $3,  $0 \n\t"   /* v1 = 0 */               \
  98                             "move $4,  $0 \n\t"   /* a0 = 0 */               \
  99                             "move $5,  $0 \n\t"   /* a1 = 0 */               \
 100                             "move $6,  $0 \n\t"   /* a2 = 0 */               \
 101                             "move $7,  $0 \n\t"   /* a3 = 0 */               \
 102                             "move $8,  $0 \n\t"   /* t0 = 0 */               \
 103                             "move $9,  $0 \n\t"   /* t1 = 0 */               \
 104                             "move $10, $0 \n\t"   /* t2 = 0 */               \
 105                             "move $11, $0 \n\t"   /* t3 = 0 */               \
 106                             "move $12, $0 \n\t"   /* t4 = 0 */               \
 107                             "move $13, $0 \n\t"   /* t5 = 0 */               \
 108                             "move $14, $0 \n\t"   /* t6 = 0 */               \
 109                             "move $15, $0 \n\t"   /* t7 = 0 */               \
 110                             "move $24, $0 \n\t"   /* t8 = 0 */               \
 111                             "move $25, $0 \n\t"   /* t9 = 0 */               \
 112                             "move $31, $0 \n\t"   /* ra = 0 */               \
 113                             ".set pop     \n\t"                              \
 114                             : : : "$1", "$2", "$3", "$4", "$5", "$6", "$7",  \
 115                                   "$8", "$9", "$10", "$11", "$12", "$13",    \
 116                                   "$14", "$15", "$24", "$25", "$31");        \
 117    } while (0)
 118 #elif (__mips == 64)
 119 #define CLEAR_CALLER_SAVED_REGS                                              \
 120    do {                                                                      \
 121       __asm__ __volatile__ (".set push    \n\t"                              \
 122                             ".set noat    \n\t"                              \
 123                             "move $1,  $0 \n\t"  /* at = 0 */                \
 124                             "move $2,  $0 \n\t"  /* v0 = 0 */                \
 125                             "move $3,  $0 \n\t"  /* v1 = 0 */                \
 126                             "move $4,  $0 \n\t"  /* a0 = 0 */                \
 127                             "move $5,  $0 \n\t"  /* a1 = 0 */                \
 128                             "move $6,  $0 \n\t"  /* a2 = 0 */                \
 129                             "move $7,  $0 \n\t"  /* a3 = 0 */                \
 130                             "move $8,  $0 \n\t"  /* a4 = 0 */                \
 131                             "move $9,  $0 \n\t"  /* a5 = 0 */                \
 132                             "move $10, $0 \n\t"  /* a6 = 0 */                \
 133                             "move $11, $0 \n\t"  /* a7 = 0 */                \
 134                             "move $12, $0 \n\t"  /* t0 = 0 */                \
 135                             "move $13, $0 \n\t"  /* t1 = 0 */                \
 136                             "move $14, $0 \n\t"  /* t2 = 0 */                \
 137                             "move $15, $0 \n\t"  /* t3 = 0 */                \
 138                             "move $24, $0 \n\t"  /* t8 = 0 */                \
 139                             "move $25, $0 \n\t"  /* t9 = 0 */                \
 140                             "move $31, $0 \n\t"  /* ra = 0 */                \
 141                             ".set pop     \n\t"                              \
 142                             : : : "$1", "$2", "$3", "$4", "$5", "$6", "$7",  \
 143                                   "$8", "$9", "$10", "$11", "$12", "$13",    \
 144                                   "$14", "$15", "$24", "$25", "$31");        \
 145    } while (0)
 146 #elif defined (__clang__) && defined(VGA_x86)
 147 #define CLEAR_CALLER_SAVED_REGS                                              \
 148    do {                                                                      \
 149       __asm__ __volatile__ ("movl $0, %ecx\n\t"); \
 150    } while (0)
 151 #elif defined(__arm__)
 152 /* 32bit arm */
 153 #define CLEAR_CALLER_SAVED_REGS                                              \
 154    do {                                                                      \
 155       __asm__ __volatile__ ("mov %r0, $0\n\t");                              \
 156       __asm__ __volatile__ ("mov %r1, $0\n\t");                              \
 157       __asm__ __volatile__ ("mov %r2, $0\n\t");                              \
 158       __asm__ __volatile__ ("mov %r3, $0\n\t");                              \
 159    } while (0)
 160 #elif defined(__aarch64__)
 161 /* 64bit arm */
 162 #define CLEAR_CALLER_SAVED_REGS                                              \
 163    do {                                                                      \
 164       __asm__ __volatile__ ("mov x0, 0\n\t");                              \
 165       __asm__ __volatile__ ("mov x1, 0\n\t");                              \
 166       __asm__ __volatile__ ("mov x2, 0\n\t");                              \
 167       __asm__ __volatile__ ("mov x3, 0\n\t");                              \
 168       __asm__ __volatile__ ("mov x4, 0\n\t");                              \
 169       __asm__ __volatile__ ("mov x5, 0\n\t");                              \
 170       __asm__ __volatile__ ("mov x6, 0\n\t");                              \
 171       __asm__ __volatile__ ("mov x7, 0\n\t");                              \
 172       __asm__ __volatile__ ("mov x8, 0\n\t");                              \
 173       __asm__ __volatile__ ("mov x9, 0\n\t");                              \
 174       __asm__ __volatile__ ("mov x10, 0\n\t");                              \
 175       __asm__ __volatile__ ("mov x11, 0\n\t");                              \
 176       __asm__ __volatile__ ("mov x12, 0\n\t");                              \
 177       __asm__ __volatile__ ("mov x13, 0\n\t");                              \
 178       __asm__ __volatile__ ("mov x14, 0\n\t");                              \
 179       __asm__ __volatile__ ("mov x15, 0\n\t");                              \
 180       __asm__ __volatile__ ("mov x16, 0\n\t");                              \
 181       __asm__ __volatile__ ("mov x17, 0\n\t");                              \
 182       __asm__ __volatile__ ("mov x18, 0\n\t");                              \
 183    } while (0)
 184 #else
 185 #define CLEAR_CALLER_SAVED_REGS  /*nothing*/
 186 #endif
 187
 188