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better backtrace

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This commit is contained in:
Daan 2021-12-10 17:31:24 -08:00
parent 72ca23d14f
commit 7a7a774257
2 changed files with 3 additions and 1 deletions
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2
include/mimalloc-types.h
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@ -70,7 +70,7 @@ terms of the MIT license. A copy of the license can be found in the file
#if !defined(MI_PADDING_EXTRA) // use extra padding bytes? (so a stack trace can be preserved or next block corruption prevented)
#if MI_DEBUG_TRACE > 0
#define MI_PADDING_EXTRA (64)
#define MI_PADDING_EXTRA (64)
#else
#define MI_PADDING_EXTRA (0)
#endif

2
src/options.c
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@ -398,6 +398,8 @@ void _mi_stack_trace_capture(void** strace, size_t len, size_t skip) {
void _mi_stack_trace_print(const char* msg, void** strace, size_t len, const mi_block_t* block, size_t bsize, size_t avail) {
_mi_fprintf(NULL, NULL, "trace %s at %p of size %zu (%zub usable), allocated at:\n",
(msg==NULL ? "block" : msg), block, avail, bsize);
while( len > 0 && strace[len-1] == NULL) { len--; }
if (len == 0) return;
char** names = backtrace_symbols(strace, len);
for (size_t i = 0; i < len && strace[i] != NULL; i++) {
_mi_fprintf(NULL, NULL, " %2zu: %8p: %s\n", i, strace[i], (names == NULL || names[i] == NULL ? "<unknown>" : names[i]));