forked from OSchip/llvm-project
93 lines
2.9 KiB
C++
93 lines
2.9 KiB
C++
//===-- tsan_interface.cc -------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file is a part of ThreadSanitizer (TSan), a race detector.
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//
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//===----------------------------------------------------------------------===//
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#include "tsan_interface.h"
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#include "tsan_interface_ann.h"
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#include "tsan_rtl.h"
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#include "sanitizer_common/sanitizer_internal_defs.h"
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#define CALLERPC ((uptr)__builtin_return_address(0))
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using namespace __tsan; // NOLINT
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typedef u16 uint16_t;
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typedef u32 uint32_t;
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typedef u64 uint64_t;
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void __tsan_init() {
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Initialize(cur_thread());
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}
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void __tsan_read16(void *addr) {
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MemoryRead(cur_thread(), CALLERPC, (uptr)addr, kSizeLog8);
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MemoryRead(cur_thread(), CALLERPC, (uptr)addr + 8, kSizeLog8);
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}
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void __tsan_write16(void *addr) {
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MemoryWrite(cur_thread(), CALLERPC, (uptr)addr, kSizeLog8);
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MemoryWrite(cur_thread(), CALLERPC, (uptr)addr + 8, kSizeLog8);
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}
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u16 __tsan_unaligned_read2(void *addr) {
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UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 2, false, false);
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return *(u16*)addr;
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}
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u32 __tsan_unaligned_read4(void *addr) {
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UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 4, false, false);
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return *(u32*)addr;
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}
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u64 __tsan_unaligned_read8(void *addr) {
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UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 8, false, false);
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return *(u64*)addr;
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}
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void __tsan_unaligned_write2(void *addr, u16 v) {
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UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 2, true, false);
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*(u16*)addr = v;
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}
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void __tsan_unaligned_write4(void *addr, u32 v) {
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UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 4, true, false);
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*(u32*)addr = v;
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}
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void __tsan_unaligned_write8(void *addr, u64 v) {
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UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 8, true, false);
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*(u64*)addr = v;
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}
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extern "C" {
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uint16_t __sanitizer_unaligned_load16(void *addr)
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ALIAS("__tsan_unaligned_read2") SANITIZER_INTERFACE_ATTRIBUTE;
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uint32_t __sanitizer_unaligned_load32(void *addr)
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ALIAS("__tsan_unaligned_read4") SANITIZER_INTERFACE_ATTRIBUTE;
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uint64_t __sanitizer_unaligned_load64(void *addr)
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ALIAS("__tsan_unaligned_read8") SANITIZER_INTERFACE_ATTRIBUTE;
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void __sanitizer_unaligned_store16(void *addr, uint16_t v)
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ALIAS("__tsan_unaligned_write2") SANITIZER_INTERFACE_ATTRIBUTE;
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void __sanitizer_unaligned_store32(void *addr, uint32_t v)
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ALIAS("__tsan_unaligned_write4") SANITIZER_INTERFACE_ATTRIBUTE;
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void __sanitizer_unaligned_store64(void *addr, uint64_t v)
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ALIAS("__tsan_unaligned_write8") SANITIZER_INTERFACE_ATTRIBUTE;
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}
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void __tsan_acquire(void *addr) {
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Acquire(cur_thread(), CALLERPC, (uptr)addr);
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}
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void __tsan_release(void *addr) {
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Release(cur_thread(), CALLERPC, (uptr)addr);
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}
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