libsanitizer/tsan/tsan_interface_inl.h

   1 //===-- tsan_interface_inl.h ------------------------------------*- C++ -*-===//
   2 //
   3 // This file is distributed under the University of Illinois Open Source
   4 // License. See LICENSE.TXT for details.
   5 //
   6 //===----------------------------------------------------------------------===//
   7 //
   8 // This file is a part of ThreadSanitizer (TSan), a race detector.
   9 //
  10 //===----------------------------------------------------------------------===//
  11
  12 #include "tsan_interface.h"
  13 #include "tsan_rtl.h"
  14
  15 #define CALLERPC ((uptr)__builtin_return_address(0))
  16
  17 using namespace __tsan;  // NOLINT
  18
  19 void __tsan_read1(void *addr) {
  20   MemoryRead(cur_thread(), CALLERPC, (uptr)addr, kSizeLog1);
  21 }
  22
  23 void __tsan_read2(void *addr) {
  24   MemoryRead(cur_thread(), CALLERPC, (uptr)addr, kSizeLog2);
  25 }
  26
  27 void __tsan_read4(void *addr) {
  28   MemoryRead(cur_thread(), CALLERPC, (uptr)addr, kSizeLog4);
  29 }
  30
  31 void __tsan_read8(void *addr) {
  32   MemoryRead(cur_thread(), CALLERPC, (uptr)addr, kSizeLog8);
  33 }
  34
  35 void __tsan_write1(void *addr) {
  36   MemoryWrite(cur_thread(), CALLERPC, (uptr)addr, kSizeLog1);
  37 }
  38
  39 void __tsan_write2(void *addr) {
  40   MemoryWrite(cur_thread(), CALLERPC, (uptr)addr, kSizeLog2);
  41 }
  42
  43 void __tsan_write4(void *addr) {
  44   MemoryWrite(cur_thread(), CALLERPC, (uptr)addr, kSizeLog4);
  45 }
  46
  47 void __tsan_write8(void *addr) {
  48   MemoryWrite(cur_thread(), CALLERPC, (uptr)addr, kSizeLog8);
  49 }
  50
  51 void __tsan_vptr_update(void **vptr_p, void *new_val) {
  52   CHECK_EQ(sizeof(vptr_p), 8);
  53   if (*vptr_p != new_val) {
  54     ThreadState *thr = cur_thread();
  55     thr->is_vptr_access = true;
  56     MemoryWrite(thr, CALLERPC, (uptr)vptr_p, kSizeLog8);
  57     thr->is_vptr_access = false;
  58   }
  59 }
  60
  61 void __tsan_vptr_read(void **vptr_p) {
  62   CHECK_EQ(sizeof(vptr_p), 8);
  63   ThreadState *thr = cur_thread();
  64   thr->is_vptr_access = true;
  65   MemoryRead(thr, CALLERPC, (uptr)vptr_p, kSizeLog8);
  66   thr->is_vptr_access = false;
  67 }
  68
  69 void __tsan_func_entry(void *pc) {
  70   FuncEntry(cur_thread(), (uptr)pc);
  71 }
  72
  73 void __tsan_func_exit() {
  74   FuncExit(cur_thread());
  75 }
  76
  77 void __tsan_read_range(void *addr, uptr size) {
  78   MemoryAccessRange(cur_thread(), CALLERPC, (uptr)addr, size, false);
  79 }
  80
  81 void __tsan_write_range(void *addr, uptr size) {
  82   MemoryAccessRange(cur_thread(), CALLERPC, (uptr)addr, size, true);
  83 }