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src: improve memory sanitizer handling

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This commit is contained in:
Markus F.X.J. Oberhumer
2023-09-26 15:15:55 +02:00
parent a24de15060
commit 39a6cc4b5f
5 changed files with 46 additions and 9 deletions
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src/util/membuffer.cpp
+2 -2
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@@ -47,7 +47,7 @@ unsigned membuffer_get_size(MemBuffer &mb) noexcept { return mb.getSize(); }
// bool use_simple_mcheck()
**************************************************************************/
#if defined(__SANITIZE_ADDRESS__)
#if defined(__SANITIZE_ADDRESS__) || defined(__SANITIZE_MEMORY__)
static forceinline constexpr bool use_simple_mcheck() noexcept { return false; }
#elif (WITH_VALGRIND) && defined(RUNNING_ON_VALGRIND)
static bool use_simple_mcheck_flag;
@@ -190,7 +190,7 @@ void MemBuffer::alloc(upx_uint64_t bytes) {
set_ne32(p + size_in_bytes + 4, stats.global_alloc_counter);
}
ptr = (pointer) (void *) p;
#if DEBUG
#if !defined(__SANITIZE_MEMORY__) && DEBUG
memset(ptr, 0xfb, size_in_bytes);
(void) VALGRIND_MAKE_MEM_UNDEFINED(ptr, size_in_bytes);
#endif