mirror of
https://github.com/ioacademy-jikim/debugging
synced 2025-06-08 16:36:21 +00:00
68 lines
2.8 KiB
C
68 lines
2.8 KiB
C
// These counters are used to get a delta between leak counts at startup
|
|
// (eg. due to libc) and later on. Necessary to get reliable leak tests
|
|
// across different platforms.
|
|
#define DECLARE_LEAK_COUNTERS \
|
|
long L0_bytes = 0, L_bytes = 0, L0_blocks = 0, L_blocks = 0; \
|
|
long D0_bytes = 0, D_bytes = 0, D0_blocks = 0, D_blocks = 0; \
|
|
long R0_bytes = 0, R_bytes = 0, R0_blocks = 0, R_blocks = 0; \
|
|
long S0_bytes = 0, S_bytes = 0, S0_blocks = 0, S_blocks = 0
|
|
|
|
// Set a baseline, in case allocations have already happened.
|
|
#define GET_INITIAL_LEAK_COUNTS \
|
|
do { \
|
|
VALGRIND_DO_QUICK_LEAK_CHECK; \
|
|
VALGRIND_COUNT_LEAKS( L0_bytes, D0_bytes, R0_bytes, S0_bytes );\
|
|
VALGRIND_COUNT_LEAK_BLOCKS(L0_blocks, D0_blocks, R0_blocks, S0_blocks); \
|
|
} while (0)
|
|
|
|
// Set a baseline, in case allocations have already happened.
|
|
#define GET_FINAL_LEAK_COUNTS \
|
|
do { \
|
|
VALGRIND_DO_QUICK_LEAK_CHECK; \
|
|
VALGRIND_COUNT_LEAKS( L_bytes, D_bytes, R_bytes, S_bytes ); \
|
|
VALGRIND_COUNT_LEAK_BLOCKS(L_blocks, D_blocks, R_blocks, S_blocks); \
|
|
L_bytes -= L0_bytes; L_blocks -= L0_blocks; \
|
|
D_bytes -= D0_bytes; D_blocks -= D0_blocks; \
|
|
R_bytes -= R0_bytes; R_blocks -= R0_blocks; \
|
|
S_bytes -= S0_bytes; S_blocks -= S0_blocks; \
|
|
} while (0)
|
|
|
|
// Print leak counts. When used in conjunction with -q the normal counts
|
|
// aren't shown, which is what we want.
|
|
#define PRINT_LEAK_COUNTS(where) \
|
|
do { \
|
|
fprintf(where,"leaked: %3ld bytes in %2ld blocks\n", \
|
|
L_bytes,L_blocks); \
|
|
fprintf(where,"dubious: %3ld bytes in %2ld blocks\n", \
|
|
D_bytes,D_blocks); \
|
|
fprintf(where,"reachable: %3ld bytes in %2ld blocks\n", \
|
|
R_bytes,R_blocks); \
|
|
fprintf(where,"suppressed: %3ld bytes in %2ld blocks\n", \
|
|
S_bytes,S_blocks); \
|
|
} while (0)
|
|
|
|
/* Upon a call to a function, some architectures store pointers into
|
|
* into registers. Valgrind may consider these registers when determining
|
|
* whether an address is reachable, so we need to zero-out these registers
|
|
* as needed.
|
|
*/
|
|
#if defined __powerpc__
|
|
#define CLEAR_CALLER_SAVED_REGS \
|
|
do { \
|
|
__asm__ __volatile__( "li 3, 0" : : :/*trash*/"r3" ); \
|
|
__asm__ __volatile__( "li 4, 0" : : :/*trash*/"r4" ); \
|
|
__asm__ __volatile__( "li 5, 0" : : :/*trash*/"r5" ); \
|
|
__asm__ __volatile__( "li 6, 0" : : :/*trash*/"r6" ); \
|
|
__asm__ __volatile__( "li 7, 0" : : :/*trash*/"r7" ); \
|
|
__asm__ __volatile__( "li 8, 0" : : :/*trash*/"r8" ); \
|
|
__asm__ __volatile__( "li 9, 0" : : :/*trash*/"r9" ); \
|
|
__asm__ __volatile__( "li 10, 0" : : :/*trash*/"r10" ); \
|
|
__asm__ __volatile__( "li 11, 0" : : :/*trash*/"r11" ); \
|
|
__asm__ __volatile__( "li 12, 0" : : :/*trash*/"r12" ); \
|
|
} while (0)
|
|
#else
|
|
#define CLEAR_CALLER_SAVED_REGS /*nothing*/
|
|
#endif
|
|
|
|
|