[compiler-rt] 6680d4e - "Reland "[hwasan] Provide aliases for c allocation functions for Fuchsia"

[Leonard Chan via llvm-commits]

Author: Leonard Chan
Date: 2023-04-18T18:26:01Z
New Revision: 6680d4e42f544db6f73ff45a1ea730565da12822

URL: https://github.com/llvm/llvm-project/commit/6680d4e42f544db6f73ff45a1ea730565da12822
DIFF: https://github.com/llvm/llvm-project/commit/6680d4e42f544db6f73ff45a1ea730565da12822.diff

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

This reverts commit cdf71d2ccd84ed7b8891924b04d1603f344038e9.

Relanding this because this only affects fuchsia builders and we moved
our hwasan builders to a non-blocking pool in the meantime.

Added: 
    

Modified: 
    compiler-rt/lib/hwasan/hwasan_allocation_functions.cpp

Removed: 
    


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diff  --git a/compiler-rt/lib/hwasan/hwasan_allocation_functions.cpp b/compiler-rt/lib/hwasan/hwasan_allocation_functions.cpp
index ad359b12904b3..59ad633879bd5 100644
--- a/compiler-rt/lib/hwasan/hwasan_allocation_functions.cpp
+++ b/compiler-rt/lib/hwasan/hwasan_allocation_functions.cpp
@@ -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> {
@@ -155,12 +154,19 @@ void *__sanitizer_malloc(uptr size) {
 
 }  // extern "C"
 
-#if HWASAN_WITH_INTERCEPTORS
+#if HWASAN_WITH_INTERCEPTORS || SANITIZER_FUCHSIA
+#if SANITIZER_FUCHSIA
+// Fuchsia does not use WRAP/wrappers used for the interceptor infrastructure.
+#  define INTERCEPTOR_ALIAS(RET, FN, ARGS...)                                 \
+    extern "C" SANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE RET FN( \
+        ARGS) ALIAS("__sanitizer_" #FN)
+#else
 #  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)
+#endif
 
 INTERCEPTOR_ALIAS(int, posix_memalign, void **memptr, SIZE_T alignment,
                   SIZE_T size);
@@ -183,5 +189,3 @@ INTERCEPTOR_ALIAS(int, mallopt, int cmd, int value);
 INTERCEPTOR_ALIAS(void, malloc_stats, void);
 #  endif
 #endif  // #if HWASAN_WITH_INTERCEPTORS
-
-#endif  // SANITIZER_FUCHSIA