llvm-project/compiler-rt/lib/hwasan/hwasan_thread_list.cpp
Fangrui Song ba66d60b1c
[sanitizer] Replace ALIGNED with alignas
C++11 `alignas` is already used extensively. `alignas` must precede
`static`, so adjust the ordering accordingly.

msan.cpp: Clang 15 doesn't allow `__attribute__((visibility("default"))) alignas(16)`.
Use the order `alignas(16) SANITIZER_INTERFACE_ATTRIBUTE`. Tested with Clang 7.

Pull Request: https://github.com/llvm/llvm-project/pull/98958
2024-07-15 16:12:42 -07:00

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#include "hwasan_thread_list.h"
#include "sanitizer_common/sanitizer_placement_new.h"
#include "sanitizer_common/sanitizer_thread_arg_retval.h"
namespace __hwasan {
static HwasanThreadList *hwasan_thread_list;
static ThreadArgRetval *thread_data;
HwasanThreadList &hwasanThreadList() { return *hwasan_thread_list; }
ThreadArgRetval &hwasanThreadArgRetval() { return *thread_data; }
void InitThreadList(uptr storage, uptr size) {
CHECK_EQ(hwasan_thread_list, nullptr);
alignas(alignof(HwasanThreadList)) static char
thread_list_placeholder[sizeof(HwasanThreadList)];
hwasan_thread_list =
new (thread_list_placeholder) HwasanThreadList(storage, size);
CHECK_EQ(thread_data, nullptr);
alignas(alignof(ThreadArgRetval)) static char
thread_data_placeholder[sizeof(ThreadArgRetval)];
thread_data = new (thread_data_placeholder) ThreadArgRetval();
}
} // namespace __hwasan