| //===-- tsan_interface.inc --------------------------------------*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file is a part of ThreadSanitizer (TSan), a race detector. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "sanitizer_common/sanitizer_ptrauth.h" |
| #include "tsan_interface.h" |
| #include "tsan_rtl.h" |
| |
| #define CALLERPC ((uptr)__builtin_return_address(0)) |
| |
| using namespace __tsan; |
| |
| void __tsan_read1(void *addr) { |
| MemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 1, kAccessRead); |
| } |
| |
| void __tsan_read2(void *addr) { |
| MemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 2, kAccessRead); |
| } |
| |
| void __tsan_read4(void *addr) { |
| MemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 4, kAccessRead); |
| } |
| |
| void __tsan_read8(void *addr) { |
| MemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 8, kAccessRead); |
| } |
| |
| void __tsan_read16(void *addr) { |
| MemoryAccess16(cur_thread(), CALLERPC, (uptr)addr, kAccessRead); |
| } |
| |
| void __tsan_write1(void *addr) { |
| MemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 1, kAccessWrite); |
| } |
| |
| void __tsan_write2(void *addr) { |
| MemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 2, kAccessWrite); |
| } |
| |
| void __tsan_write4(void *addr) { |
| MemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 4, kAccessWrite); |
| } |
| |
| void __tsan_write8(void *addr) { |
| MemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 8, kAccessWrite); |
| } |
| |
| void __tsan_write16(void *addr) { |
| MemoryAccess16(cur_thread(), CALLERPC, (uptr)addr, kAccessWrite); |
| } |
| |
| void __tsan_read1_pc(void *addr, void *pc) { |
| MemoryAccess(cur_thread(), STRIP_PAC_PC(pc), (uptr)addr, 1, kAccessRead | kAccessExternalPC); |
| } |
| |
| void __tsan_read2_pc(void *addr, void *pc) { |
| MemoryAccess(cur_thread(), STRIP_PAC_PC(pc), (uptr)addr, 2, kAccessRead | kAccessExternalPC); |
| } |
| |
| void __tsan_read4_pc(void *addr, void *pc) { |
| MemoryAccess(cur_thread(), STRIP_PAC_PC(pc), (uptr)addr, 4, kAccessRead | kAccessExternalPC); |
| } |
| |
| void __tsan_read8_pc(void *addr, void *pc) { |
| MemoryAccess(cur_thread(), STRIP_PAC_PC(pc), (uptr)addr, 8, kAccessRead | kAccessExternalPC); |
| } |
| |
| void __tsan_write1_pc(void *addr, void *pc) { |
| MemoryAccess(cur_thread(), STRIP_PAC_PC(pc), (uptr)addr, 1, kAccessWrite | kAccessExternalPC); |
| } |
| |
| void __tsan_write2_pc(void *addr, void *pc) { |
| MemoryAccess(cur_thread(), STRIP_PAC_PC(pc), (uptr)addr, 2, kAccessWrite | kAccessExternalPC); |
| } |
| |
| void __tsan_write4_pc(void *addr, void *pc) { |
| MemoryAccess(cur_thread(), STRIP_PAC_PC(pc), (uptr)addr, 4, kAccessWrite | kAccessExternalPC); |
| } |
| |
| void __tsan_write8_pc(void *addr, void *pc) { |
| MemoryAccess(cur_thread(), STRIP_PAC_PC(pc), (uptr)addr, 8, kAccessWrite | kAccessExternalPC); |
| } |
| |
| ALWAYS_INLINE USED void __tsan_unaligned_read2(const void *addr) { |
| UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 2, kAccessRead); |
| } |
| |
| ALWAYS_INLINE USED void __tsan_unaligned_read4(const void *addr) { |
| UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 4, kAccessRead); |
| } |
| |
| ALWAYS_INLINE USED void __tsan_unaligned_read8(const void *addr) { |
| UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 8, kAccessRead); |
| } |
| |
| ALWAYS_INLINE USED void __tsan_unaligned_write2(void *addr) { |
| UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 2, kAccessWrite); |
| } |
| |
| ALWAYS_INLINE USED void __tsan_unaligned_write4(void *addr) { |
| UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 4, kAccessWrite); |
| } |
| |
| ALWAYS_INLINE USED void __tsan_unaligned_write8(void *addr) { |
| UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 8, kAccessWrite); |
| } |
| |
| extern "C" { |
| // __sanitizer_unaligned_load/store are for user instrumentation. |
| SANITIZER_INTERFACE_ATTRIBUTE |
| u16 __sanitizer_unaligned_load16(const uu16 *addr) { |
| __tsan_unaligned_read2(addr); |
| return *addr; |
| } |
| |
| SANITIZER_INTERFACE_ATTRIBUTE |
| u32 __sanitizer_unaligned_load32(const uu32 *addr) { |
| __tsan_unaligned_read4(addr); |
| return *addr; |
| } |
| |
| SANITIZER_INTERFACE_ATTRIBUTE |
| u64 __sanitizer_unaligned_load64(const uu64 *addr) { |
| __tsan_unaligned_read8(addr); |
| return *addr; |
| } |
| |
| SANITIZER_INTERFACE_ATTRIBUTE |
| void __sanitizer_unaligned_store16(uu16 *addr, u16 v) { |
| *addr = v; |
| __tsan_unaligned_write2(addr); |
| } |
| |
| SANITIZER_INTERFACE_ATTRIBUTE |
| void __sanitizer_unaligned_store32(uu32 *addr, u32 v) { |
| *addr = v; |
| __tsan_unaligned_write4(addr); |
| } |
| |
| SANITIZER_INTERFACE_ATTRIBUTE |
| void __sanitizer_unaligned_store64(uu64 *addr, u64 v) { |
| *addr = v; |
| __tsan_unaligned_write8(addr); |
| } |
| } |
| |
| void __tsan_vptr_update(void **vptr_p, void *new_val) { |
| if (*vptr_p == new_val) |
| return; |
| MemoryAccess(cur_thread(), CALLERPC, (uptr)vptr_p, sizeof(*vptr_p), |
| kAccessWrite | kAccessVptr); |
| } |
| |
| void __tsan_vptr_read(void **vptr_p) { |
| MemoryAccess(cur_thread(), CALLERPC, (uptr)vptr_p, sizeof(*vptr_p), |
| kAccessRead | kAccessVptr); |
| } |
| |
| void __tsan_func_entry(void *pc) { FuncEntry(cur_thread(), STRIP_PAC_PC(pc)); } |
| |
| void __tsan_func_exit() { FuncExit(cur_thread()); } |
| |
| void __tsan_ignore_thread_begin() { ThreadIgnoreBegin(cur_thread(), CALLERPC); } |
| |
| void __tsan_ignore_thread_end() { ThreadIgnoreEnd(cur_thread()); } |
| |
| void __tsan_read_range(void *addr, uptr size) { |
| MemoryAccessRange(cur_thread(), CALLERPC, (uptr)addr, size, false); |
| } |
| |
| void __tsan_write_range(void *addr, uptr size) { |
| MemoryAccessRange(cur_thread(), CALLERPC, (uptr)addr, size, true); |
| } |
| |
| void __tsan_read_range_pc(void *addr, uptr size, void *pc) { |
| MemoryAccessRange(cur_thread(), STRIP_PAC_PC(pc), (uptr)addr, size, false); |
| } |
| |
| void __tsan_write_range_pc(void *addr, uptr size, void *pc) { |
| MemoryAccessRange(cur_thread(), STRIP_PAC_PC(pc), (uptr)addr, size, true); |
| } |