| //===-- tsan_interface.cc -------------------------------------------------===// |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file is a part of ThreadSanitizer (TSan), a race detector. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "tsan_interface.h" |
| #include "tsan_interface_ann.h" |
| #include "tsan_rtl.h" |
| #include "sanitizer_common/sanitizer_internal_defs.h" |
| |
| #define CALLERPC ((uptr)__builtin_return_address(0)) |
| |
| using namespace __tsan; // NOLINT |
| |
| typedef u16 uint16_t; |
| typedef u32 uint32_t; |
| typedef u64 uint64_t; |
| |
| void __tsan_init() { |
| Initialize(cur_thread()); |
| } |
| |
| void __tsan_read16(void *addr) { |
| MemoryRead(cur_thread(), CALLERPC, (uptr)addr, kSizeLog8); |
| MemoryRead(cur_thread(), CALLERPC, (uptr)addr + 8, kSizeLog8); |
| } |
| |
| void __tsan_write16(void *addr) { |
| MemoryWrite(cur_thread(), CALLERPC, (uptr)addr, kSizeLog8); |
| MemoryWrite(cur_thread(), CALLERPC, (uptr)addr + 8, kSizeLog8); |
| } |
| |
| u16 __tsan_unaligned_read2(const uu16 *addr) { |
| UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 2, false, false); |
| return *addr; |
| } |
| |
| u32 __tsan_unaligned_read4(const uu32 *addr) { |
| UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 4, false, false); |
| return *addr; |
| } |
| |
| u64 __tsan_unaligned_read8(const uu64 *addr) { |
| UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 8, false, false); |
| return *addr; |
| } |
| |
| void __tsan_unaligned_write2(uu16 *addr, u16 v) { |
| UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 2, true, false); |
| *addr = v; |
| } |
| |
| void __tsan_unaligned_write4(uu32 *addr, u32 v) { |
| UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 4, true, false); |
| *addr = v; |
| } |
| |
| void __tsan_unaligned_write8(uu64 *addr, u64 v) { |
| UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 8, true, false); |
| *addr = v; |
| } |
| |
| extern "C" { |
| SANITIZER_INTERFACE_ATTRIBUTE |
| uint16_t __sanitizer_unaligned_load16(void *addr) |
| ALIAS("__tsan_unaligned_read2"); |
| SANITIZER_INTERFACE_ATTRIBUTE |
| uint32_t __sanitizer_unaligned_load32(void *addr) |
| ALIAS("__tsan_unaligned_read4"); |
| SANITIZER_INTERFACE_ATTRIBUTE |
| uint64_t __sanitizer_unaligned_load64(void *addr) |
| ALIAS("__tsan_unaligned_read8"); |
| SANITIZER_INTERFACE_ATTRIBUTE |
| void __sanitizer_unaligned_store16(void *addr, uint16_t v) |
| ALIAS("__tsan_unaligned_write2"); |
| SANITIZER_INTERFACE_ATTRIBUTE |
| void __sanitizer_unaligned_store32(void *addr, uint32_t v) |
| ALIAS("__tsan_unaligned_write4"); |
| SANITIZER_INTERFACE_ATTRIBUTE |
| void __sanitizer_unaligned_store64(void *addr, uint64_t v) |
| ALIAS("__tsan_unaligned_write8"); |
| } |
| |
| void __tsan_acquire(void *addr) { |
| Acquire(cur_thread(), CALLERPC, (uptr)addr); |
| } |
| |
| void __tsan_release(void *addr) { |
| Release(cur_thread(), CALLERPC, (uptr)addr); |
| } |