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      1 //===-- tsan_interface_inl.h ------------------------------------*- C++ -*-===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 //
     10 // This file is a part of ThreadSanitizer (TSan), a race detector.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 
     14 #include "tsan_interface.h"
     15 #include "tsan_rtl.h"
     16 
     17 #define CALLERPC ((uptr)__builtin_return_address(0))
     18 
     19 using namespace __tsan;  // NOLINT
     20 
     21 void __tsan_read1(void *addr) {
     22   MemoryRead(cur_thread(), CALLERPC, (uptr)addr, kSizeLog1);
     23 }
     24 
     25 void __tsan_read2(void *addr) {
     26   MemoryRead(cur_thread(), CALLERPC, (uptr)addr, kSizeLog2);
     27 }
     28 
     29 void __tsan_read4(void *addr) {
     30   MemoryRead(cur_thread(), CALLERPC, (uptr)addr, kSizeLog4);
     31 }
     32 
     33 void __tsan_read8(void *addr) {
     34   MemoryRead(cur_thread(), CALLERPC, (uptr)addr, kSizeLog8);
     35 }
     36 
     37 void __tsan_write1(void *addr) {
     38   MemoryWrite(cur_thread(), CALLERPC, (uptr)addr, kSizeLog1);
     39 }
     40 
     41 void __tsan_write2(void *addr) {
     42   MemoryWrite(cur_thread(), CALLERPC, (uptr)addr, kSizeLog2);
     43 }
     44 
     45 void __tsan_write4(void *addr) {
     46   MemoryWrite(cur_thread(), CALLERPC, (uptr)addr, kSizeLog4);
     47 }
     48 
     49 void __tsan_write8(void *addr) {
     50   MemoryWrite(cur_thread(), CALLERPC, (uptr)addr, kSizeLog8);
     51 }
     52 
     53 void __tsan_read1_pc(void *addr, void *pc) {
     54   MemoryRead(cur_thread(), (uptr)pc, (uptr)addr, kSizeLog1);
     55 }
     56 
     57 void __tsan_read2_pc(void *addr, void *pc) {
     58   MemoryRead(cur_thread(), (uptr)pc, (uptr)addr, kSizeLog2);
     59 }
     60 
     61 void __tsan_read4_pc(void *addr, void *pc) {
     62   MemoryRead(cur_thread(), (uptr)pc, (uptr)addr, kSizeLog4);
     63 }
     64 
     65 void __tsan_read8_pc(void *addr, void *pc) {
     66   MemoryRead(cur_thread(), (uptr)pc, (uptr)addr, kSizeLog8);
     67 }
     68 
     69 void __tsan_write1_pc(void *addr, void *pc) {
     70   MemoryWrite(cur_thread(), (uptr)pc, (uptr)addr, kSizeLog1);
     71 }
     72 
     73 void __tsan_write2_pc(void *addr, void *pc) {
     74   MemoryWrite(cur_thread(), (uptr)pc, (uptr)addr, kSizeLog2);
     75 }
     76 
     77 void __tsan_write4_pc(void *addr, void *pc) {
     78   MemoryWrite(cur_thread(), (uptr)pc, (uptr)addr, kSizeLog4);
     79 }
     80 
     81 void __tsan_write8_pc(void *addr, void *pc) {
     82   MemoryWrite(cur_thread(), (uptr)pc, (uptr)addr, kSizeLog8);
     83 }
     84 
     85 void __tsan_vptr_update(void **vptr_p, void *new_val) {
     86   CHECK_EQ(sizeof(vptr_p), 8);
     87   if (*vptr_p != new_val) {
     88     ThreadState *thr = cur_thread();
     89     thr->is_vptr_access = true;
     90     MemoryWrite(thr, CALLERPC, (uptr)vptr_p, kSizeLog8);
     91     thr->is_vptr_access = false;
     92   }
     93 }
     94 
     95 void __tsan_vptr_read(void **vptr_p) {
     96   CHECK_EQ(sizeof(vptr_p), 8);
     97   ThreadState *thr = cur_thread();
     98   thr->is_vptr_access = true;
     99   MemoryRead(thr, CALLERPC, (uptr)vptr_p, kSizeLog8);
    100   thr->is_vptr_access = false;
    101 }
    102 
    103 void __tsan_func_entry(void *pc) {
    104   FuncEntry(cur_thread(), (uptr)pc);
    105 }
    106 
    107 void __tsan_func_exit() {
    108   FuncExit(cur_thread());
    109 }
    110 
    111 void __tsan_read_range(void *addr, uptr size) {
    112   MemoryAccessRange(cur_thread(), CALLERPC, (uptr)addr, size, false);
    113 }
    114 
    115 void __tsan_write_range(void *addr, uptr size) {
    116   MemoryAccessRange(cur_thread(), CALLERPC, (uptr)addr, size, true);
    117 }
    118