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#else
64#define CLEAR_CALLER_SAVED_REGS  /*nothing*/
65#endif
66
67
68