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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 
__tsan_read1(void * addr)21 void __tsan_read1(void *addr) {
22   MemoryRead(cur_thread(), CALLERPC, (uptr)addr, kSizeLog1);
23 }
24 
__tsan_read2(void * addr)25 void __tsan_read2(void *addr) {
26   MemoryRead(cur_thread(), CALLERPC, (uptr)addr, kSizeLog2);
27 }
28 
__tsan_read4(void * addr)29 void __tsan_read4(void *addr) {
30   MemoryRead(cur_thread(), CALLERPC, (uptr)addr, kSizeLog4);
31 }
32 
__tsan_read8(void * addr)33 void __tsan_read8(void *addr) {
34   MemoryRead(cur_thread(), CALLERPC, (uptr)addr, kSizeLog8);
35 }
36 
__tsan_write1(void * addr)37 void __tsan_write1(void *addr) {
38   MemoryWrite(cur_thread(), CALLERPC, (uptr)addr, kSizeLog1);
39 }
40 
__tsan_write2(void * addr)41 void __tsan_write2(void *addr) {
42   MemoryWrite(cur_thread(), CALLERPC, (uptr)addr, kSizeLog2);
43 }
44 
__tsan_write4(void * addr)45 void __tsan_write4(void *addr) {
46   MemoryWrite(cur_thread(), CALLERPC, (uptr)addr, kSizeLog4);
47 }
48 
__tsan_write8(void * addr)49 void __tsan_write8(void *addr) {
50   MemoryWrite(cur_thread(), CALLERPC, (uptr)addr, kSizeLog8);
51 }
52 
__tsan_read1_pc(void * addr,void * pc)53 void __tsan_read1_pc(void *addr, void *pc) {
54   MemoryRead(cur_thread(), (uptr)pc, (uptr)addr, kSizeLog1);
55 }
56 
__tsan_read2_pc(void * addr,void * pc)57 void __tsan_read2_pc(void *addr, void *pc) {
58   MemoryRead(cur_thread(), (uptr)pc, (uptr)addr, kSizeLog2);
59 }
60 
__tsan_read4_pc(void * addr,void * pc)61 void __tsan_read4_pc(void *addr, void *pc) {
62   MemoryRead(cur_thread(), (uptr)pc, (uptr)addr, kSizeLog4);
63 }
64 
__tsan_read8_pc(void * addr,void * pc)65 void __tsan_read8_pc(void *addr, void *pc) {
66   MemoryRead(cur_thread(), (uptr)pc, (uptr)addr, kSizeLog8);
67 }
68 
__tsan_write1_pc(void * addr,void * pc)69 void __tsan_write1_pc(void *addr, void *pc) {
70   MemoryWrite(cur_thread(), (uptr)pc, (uptr)addr, kSizeLog1);
71 }
72 
__tsan_write2_pc(void * addr,void * pc)73 void __tsan_write2_pc(void *addr, void *pc) {
74   MemoryWrite(cur_thread(), (uptr)pc, (uptr)addr, kSizeLog2);
75 }
76 
__tsan_write4_pc(void * addr,void * pc)77 void __tsan_write4_pc(void *addr, void *pc) {
78   MemoryWrite(cur_thread(), (uptr)pc, (uptr)addr, kSizeLog4);
79 }
80 
__tsan_write8_pc(void * addr,void * pc)81 void __tsan_write8_pc(void *addr, void *pc) {
82   MemoryWrite(cur_thread(), (uptr)pc, (uptr)addr, kSizeLog8);
83 }
84 
__tsan_vptr_update(void ** vptr_p,void * new_val)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 
__tsan_vptr_read(void ** vptr_p)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 
__tsan_func_entry(void * pc)103 void __tsan_func_entry(void *pc) {
104   FuncEntry(cur_thread(), (uptr)pc);
105 }
106 
__tsan_func_exit()107 void __tsan_func_exit() {
108   FuncExit(cur_thread());
109 }
110 
__tsan_read_range(void * addr,uptr size)111 void __tsan_read_range(void *addr, uptr size) {
112   MemoryAccessRange(cur_thread(), CALLERPC, (uptr)addr, size, false);
113 }
114 
__tsan_write_range(void * addr,uptr size)115 void __tsan_write_range(void *addr, uptr size) {
116   MemoryAccessRange(cur_thread(), CALLERPC, (uptr)addr, size, true);
117 }
118