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add tracing on linux and freebsd

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This commit is contained in:
Daan Leijen 2021-12-09 17:26:13 -08:00
parent e125c04081
commit ea75c745e1
4 changed files with 63 additions and 7 deletions
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31
src/options.c
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@ -358,6 +358,7 @@ void _mi_stack_trace_capture(void** strace, size_t len, size_t skip) {
#include <dbghelp.h>
#pragma comment(lib,"dbghelp")
void _mi_stack_trace_print(const void* const* strace, size_t len, const mi_block_t* block, size_t bsize, size_t avail) {
_mi_fprintf(NULL, NULL, "trace for block %p of size %zu (%zu total in block), allocated at:\n", block, avail, bsize);
HANDLE current_process = GetCurrentProcess();
SymInitialize(current_process, NULL, TRUE);
PSYMBOL_INFO info = (PSYMBOL_INFO)_malloca(sizeof(SYMBOL_INFO) + 256 * sizeof(TCHAR));
@ -365,7 +366,6 @@ void _mi_stack_trace_print(const void* const* strace, size_t len, const mi_block
memset(info, 0, sizeof(info));
info->MaxNameLen = 255;
info->SizeOfStruct = sizeof(SYMBOL_INFO);
_mi_fprintf(NULL, NULL, "for block %p of %zu allocated bytes (%zu total in block), allocated at:\n", block, avail, bsize);
for (size_t i = 0; i < len && strace[i] != NULL; i++) {
if (SymFromAddr(current_process, (DWORD64)(strace[i]), 0, info)) {
_mi_fprintf(NULL, NULL, " frame %2zu: %8p: %s\n", i, strace[i], info->Name);
@ -375,10 +375,37 @@ void _mi_stack_trace_print(const void* const* strace, size_t len, const mi_block
}
}
}
#elif (MI_DEBUG_TRACE > 0) && (defined(__linux__) || defined(__FreeBSD__))
#include <execinfo.h>
#define MI_TRACE_LEN (64)
void _mi_stack_trace_capture(void** strace, size_t len, size_t skip) {
if (_mi_preloading()) return;
if (!mi_recurse_enter()) return;
void* trace[MI_TRACE_LEN];
backtrace(trace, MI_TRACE_LEN);
skip += 4;
for (size_t i = 0; i < len; i++) {
void* p = (i + skip < MI_TRACE_LEN ? trace[i+skip] : NULL);
strace[i] = p;
}
mi_recurse_exit();
}
void _mi_stack_trace_print(const void* const* strace, size_t len, const mi_block_t* block, size_t bsize, size_t avail) {
_mi_fprintf(NULL, NULL, "trace for block %p of size %zu (%zu total in block), allocated at:\n", block, avail, bsize);
char** names = backtrace_symbols((void**)strace, len);
for (size_t i = 0; i < len && strace[i] != NULL; i++) {
_mi_fprintf(NULL, NULL, " frame %2zu: %8p: %s\n", i, strace[i], (names[i] == NULL ? "<unknown>" : names[i]));
}
}
#else
void _mi_capture_stack_trace(void** strace, size_t len, size_t skip) {
void _mi_stack_trace_capture(void** strace, size_t len, size_t skip) {
MI_UNUSED(strace); MI_UNUSED(len); MI_UNUSED(skip);
}
void _mi_stack_trace_print(const void* const* strace, size_t len, const mi_block_t* block, size_t bsize, size_t avail) {
MI_UNUSED(strace); MI_UNUSED(len); MI_UNUSED(block);
MI_UNUSED(bsize); MI_UNUSED(avail);
}
#endif
// --------------------------------------------------------