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"Reland "[hwasan] Provide aliases for c allocation functions for Fuchsia"

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This reverts commit c5c6781428a70d1fffd00a256a237cbf5a3ccfd3.

This likely broke the android sanitizer builders prior because it
accidentally enabled interceptors for android, which they don't use, so
c-allocation functions like malloc would go through hwasan.

This reland adds the HWASAN_WITH_INTERCEPTORS check.
This commit is contained in:
Leonard Chan 2023-03-30 19:55:05 +00:00
parent 5b07059618
commit 1190a1dbd5
1 changed files with 2 additions and 7 deletions
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9
compiler-rt/lib/hwasan/hwasan_allocation_functions.cpp
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@ -16,10 +16,9 @@
#include "interception/interception.h"
#include "sanitizer_common/sanitizer_allocator_dlsym.h"
#include "sanitizer_common/sanitizer_allocator_interface.h"
#include "sanitizer_common/sanitizer_mallinfo.h"
#include "sanitizer_common/sanitizer_tls_get_addr.h"
#if !SANITIZER_FUCHSIA
using namespace __hwasan;
struct DlsymAlloc : public DlSymAllocator<DlsymAlloc> {
@ -155,10 +154,8 @@ void *__sanitizer_malloc(uptr size) {
} // extern "C"
#if HWASAN_WITH_INTERCEPTORS
#if HWASAN_WITH_INTERCEPTORS || SANITIZER_FUCHSIA
# define INTERCEPTOR_ALIAS(RET, FN, ARGS...) \
extern "C" SANITIZER_INTERFACE_ATTRIBUTE RET WRAP(FN)(ARGS) \
ALIAS("__sanitizer_" #FN); \
extern "C" SANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE RET FN( \
ARGS) ALIAS("__sanitizer_" #FN)
@ -183,5 +180,3 @@ INTERCEPTOR_ALIAS(int, mallopt, int cmd, int value);
INTERCEPTOR_ALIAS(void, malloc_stats, void);
# endif
#endif // #if HWASAN_WITH_INTERCEPTORS
#endif // SANITIZER_FUCHSIA