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1//===-- tsan_interface.inc --------------------------------------*- C++ -*-===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8//9// This file is a part of ThreadSanitizer (TSan), a race detector.10//11//===----------------------------------------------------------------------===//12 13#include "sanitizer_common/sanitizer_ptrauth.h"14#include "tsan_interface.h"15#include "tsan_rtl.h"16 17#define CALLERPC ((uptr)__builtin_return_address(0))18 19using namespace __tsan;20 21void __tsan_read1(void *addr) {22 MemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 1, kAccessRead);23}24 25void __tsan_read2(void *addr) {26 MemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 2, kAccessRead);27}28 29void __tsan_read4(void *addr) {30 MemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 4, kAccessRead);31}32 33void __tsan_read8(void *addr) {34 MemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 8, kAccessRead);35}36 37void __tsan_read16(void *addr) {38 MemoryAccess16(cur_thread(), CALLERPC, (uptr)addr, kAccessRead);39}40 41void __tsan_write1(void *addr) {42 MemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 1, kAccessWrite);43}44 45void __tsan_write2(void *addr) {46 MemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 2, kAccessWrite);47}48 49void __tsan_write4(void *addr) {50 MemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 4, kAccessWrite);51}52 53void __tsan_write8(void *addr) {54 MemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 8, kAccessWrite);55}56 57void __tsan_write16(void *addr) {58 MemoryAccess16(cur_thread(), CALLERPC, (uptr)addr, kAccessWrite);59}60 61void __tsan_read1_pc(void *addr, void *pc) {62 MemoryAccess(cur_thread(), STRIP_PAC_PC(pc), (uptr)addr, 1, kAccessRead | kAccessExternalPC);63}64 65void __tsan_read2_pc(void *addr, void *pc) {66 MemoryAccess(cur_thread(), STRIP_PAC_PC(pc), (uptr)addr, 2, kAccessRead | kAccessExternalPC);67}68 69void __tsan_read4_pc(void *addr, void *pc) {70 MemoryAccess(cur_thread(), STRIP_PAC_PC(pc), (uptr)addr, 4, kAccessRead | kAccessExternalPC);71}72 73void __tsan_read8_pc(void *addr, void *pc) {74 MemoryAccess(cur_thread(), STRIP_PAC_PC(pc), (uptr)addr, 8, kAccessRead | kAccessExternalPC);75}76 77void __tsan_write1_pc(void *addr, void *pc) {78 MemoryAccess(cur_thread(), STRIP_PAC_PC(pc), (uptr)addr, 1, kAccessWrite | kAccessExternalPC);79}80 81void __tsan_write2_pc(void *addr, void *pc) {82 MemoryAccess(cur_thread(), STRIP_PAC_PC(pc), (uptr)addr, 2, kAccessWrite | kAccessExternalPC);83}84 85void __tsan_write4_pc(void *addr, void *pc) {86 MemoryAccess(cur_thread(), STRIP_PAC_PC(pc), (uptr)addr, 4, kAccessWrite | kAccessExternalPC);87}88 89void __tsan_write8_pc(void *addr, void *pc) {90 MemoryAccess(cur_thread(), STRIP_PAC_PC(pc), (uptr)addr, 8, kAccessWrite | kAccessExternalPC);91}92 93ALWAYS_INLINE USED void __tsan_unaligned_read2(const void *addr) {94 UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 2, kAccessRead);95}96 97ALWAYS_INLINE USED void __tsan_unaligned_read4(const void *addr) {98 UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 4, kAccessRead);99}100 101ALWAYS_INLINE USED void __tsan_unaligned_read8(const void *addr) {102 UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 8, kAccessRead);103}104 105ALWAYS_INLINE USED void __tsan_unaligned_write2(void *addr) {106 UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 2, kAccessWrite);107}108 109ALWAYS_INLINE USED void __tsan_unaligned_write4(void *addr) {110 UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 4, kAccessWrite);111}112 113ALWAYS_INLINE USED void __tsan_unaligned_write8(void *addr) {114 UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 8, kAccessWrite);115}116 117extern "C" {118// __sanitizer_unaligned_load/store are for user instrumentation.119SANITIZER_INTERFACE_ATTRIBUTE120u16 __sanitizer_unaligned_load16(const uu16 *addr) {121 __tsan_unaligned_read2(addr);122 return *addr;123}124 125SANITIZER_INTERFACE_ATTRIBUTE126u32 __sanitizer_unaligned_load32(const uu32 *addr) {127 __tsan_unaligned_read4(addr);128 return *addr;129}130 131SANITIZER_INTERFACE_ATTRIBUTE132u64 __sanitizer_unaligned_load64(const uu64 *addr) {133 __tsan_unaligned_read8(addr);134 return *addr;135}136 137SANITIZER_INTERFACE_ATTRIBUTE138void __sanitizer_unaligned_store16(uu16 *addr, u16 v) {139 *addr = v;140 __tsan_unaligned_write2(addr);141}142 143SANITIZER_INTERFACE_ATTRIBUTE144void __sanitizer_unaligned_store32(uu32 *addr, u32 v) {145 *addr = v;146 __tsan_unaligned_write4(addr);147}148 149SANITIZER_INTERFACE_ATTRIBUTE150void __sanitizer_unaligned_store64(uu64 *addr, u64 v) {151 *addr = v;152 __tsan_unaligned_write8(addr);153}154}155 156void __tsan_vptr_update(void **vptr_p, void *new_val) {157 if (*vptr_p == new_val)158 return;159 MemoryAccess(cur_thread(), CALLERPC, (uptr)vptr_p, sizeof(*vptr_p),160 kAccessWrite | kAccessVptr);161}162 163void __tsan_vptr_read(void **vptr_p) {164 MemoryAccess(cur_thread(), CALLERPC, (uptr)vptr_p, sizeof(*vptr_p),165 kAccessRead | kAccessVptr);166}167 168void __tsan_func_entry(void *pc) { FuncEntry(cur_thread(), STRIP_PAC_PC(pc)); }169 170void __tsan_func_exit() { FuncExit(cur_thread()); }171 172void __tsan_ignore_thread_begin() { ThreadIgnoreBegin(cur_thread(), CALLERPC); }173 174void __tsan_ignore_thread_end() { ThreadIgnoreEnd(cur_thread()); }175 176void __tsan_read_range(void *addr, uptr size) {177 MemoryAccessRange(cur_thread(), CALLERPC, (uptr)addr, size, false);178}179 180void __tsan_write_range(void *addr, uptr size) {181 MemoryAccessRange(cur_thread(), CALLERPC, (uptr)addr, size, true);182}183 184void __tsan_read_range_pc(void *addr, uptr size, void *pc) {185 MemoryAccessRange(cur_thread(), STRIP_PAC_PC(pc), (uptr)addr, size, false);186}187 188void __tsan_write_range_pc(void *addr, uptr size, void *pc) {189 MemoryAccessRange(cur_thread(), STRIP_PAC_PC(pc), (uptr)addr, size, true);190}191