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Suppress tracing around calls into original allocators, in case they recur back into our hooks. Fixes most of leak *stats* regression from bug 392009. r+a1.9=brendan

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dbaron@dbaron.org 2007-09-25 13:33:37 -07:00
parent c704cfc764
commit 70983c436d
1 changed files with 13 additions and 0 deletions
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13
tools/trace-malloc/lib/nsTraceMalloc.c
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@ -1096,11 +1096,13 @@ my_malloc_hook(size_t size, __const __malloc_ptr_t caller)
PR_ASSERT(tracing_enabled);
t = tm_get_thread();
t->suppress_tracing++;
__malloc_hook = old_malloc_hook;
start = PR_IntervalNow();
ptr = __libc_malloc(size);
end = PR_IntervalNow();
__malloc_hook = my_malloc_hook;
t->suppress_tracing--;
MallocCallback(ptr, size, start, end, t);
return ptr;
}
@ -1114,11 +1116,18 @@ my_realloc_hook(__ptr_t oldptr, size_t size, __const __malloc_ptr_t caller)
PR_ASSERT(tracing_enabled);
t = tm_get_thread();
t->suppress_tracing++;
__realloc_hook = old_realloc_hook;
start = PR_IntervalNow();
/*
* __libc_realloc(NULL, size) recurs into my_malloc_hook, so it's
* important that we've incremented t->suppress_tracing here.
*/
ptr = __libc_realloc(oldptr, size);
end = PR_IntervalNow();
__realloc_hook = my_realloc_hook;
t->suppress_tracing--;
ReallocCallback(oldptr, ptr, size, start, end, t);
return ptr;
}
@ -1132,11 +1141,13 @@ my_memalign_hook(size_t boundary, size_t size, __const __malloc_ptr_t caller)
PR_ASSERT(tracing_enabled);
t = tm_get_thread();
t->suppress_tracing++;
__memalign_hook = old_memalign_hook;
start = PR_IntervalNow();
ptr = __libc_memalign(boundary, size);
end = PR_IntervalNow();
__memalign_hook = my_memalign_hook;
t->suppress_tracing--;
MallocCallback(ptr, size, start, end, t);
return ptr;
}
@ -1149,11 +1160,13 @@ my_free_hook(__ptr_t ptr, __const __malloc_ptr_t caller)
PR_ASSERT(tracing_enabled);
t = tm_get_thread();
t->suppress_tracing++;
__free_hook = old_free_hook;
start = PR_IntervalNow();
__libc_free(ptr);
end = PR_IntervalNow();
__free_hook = my_free_hook;
t->suppress_tracing--;
FreeCallback(ptr, start, end, t);
}