[compiler-rt] [asan][windows] use __builtin_function_address to avoid problematic codegen in weak function registration (PR #108327)
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Wed Sep 11 21:16:54 PDT 2024
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``````````bash
git-clang-format --diff 828783177f71d95522763fba92ef1e42dc6101c7 0df07f38de2cc97940cc99a20b40ff7581a36b81 --extensions h -- compiler-rt/lib/sanitizer_common/sanitizer_win_thunk_interception.h
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View the diff from clang-format here.
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``````````diff
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_win_thunk_interception.h b/compiler-rt/lib/sanitizer_common/sanitizer_win_thunk_interception.h
index 80c56f8f3c..278450d68a 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_win_thunk_interception.h
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_win_thunk_interception.h
@@ -65,7 +65,7 @@ void initialize_thunks(const sanitizer_thunk *begin,
# define REGISTER_WEAK_FUNCTION_ADDRESS(fn) __builtin_function_start(fn)
#else
# define REGISTER_WEAK_OPTNONE
-# define REGISTER_WEAK_FUNCTION_ADDRESS(fn) & fn
+# define REGISTER_WEAK_FUNCTION_ADDRESS(fn) &fn
#endif
#define REGISTER_WEAK_FUNCTION(local_function) \
@@ -73,7 +73,9 @@ void initialize_thunks(const sanitizer_thunk *begin,
extern "C" void WEAK_EXPORT_NAME(local_function)(); \
WIN_WEAK_IMPORT_DEF(local_function) \
REGISTER_WEAK_OPTNONE static int register_weak_##local_function() { \
- if ((uintptr_t) REGISTER_WEAK_FUNCTION_ADDRESS(local_function) != (uintptr_t) REGISTER_WEAK_FUNCTION_ADDRESS(WEAK_EXPORT_NAME(local_function))) { \
+ if ((uintptr_t)REGISTER_WEAK_FUNCTION_ADDRESS(local_function) != \
+ (uintptr_t)REGISTER_WEAK_FUNCTION_ADDRESS( \
+ WEAK_EXPORT_NAME(local_function))) { \
return __sanitizer::register_weak( \
SANITIZER_STRINGIFY(WEAK_EXPORT_NAME(local_function)), \
reinterpret_cast<__sanitizer::uptr>(local_function)); \
``````````
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https://github.com/llvm/llvm-project/pull/108327
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