1 //===-- tsan_shadow_test.cc -----------------------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file is a part of ThreadSanitizer (TSan), a race detector.
12 //===----------------------------------------------------------------------===//
13 #include "tsan_platform.h"
15 #include "gtest/gtest.h"
19 TEST(Shadow, FastState) {
20 Shadow s(FastState(11, 22));
21 EXPECT_EQ(s.tid(), (u64)11);
22 EXPECT_EQ(s.epoch(), (u64)22);
23 EXPECT_EQ(s.GetIgnoreBit(), false);
24 EXPECT_EQ(s.GetFreedAndReset(), false);
25 EXPECT_EQ(s.GetHistorySize(), 0);
26 EXPECT_EQ(s.addr0(), (u64)0);
27 EXPECT_EQ(s.size(), (u64)1);
28 EXPECT_EQ(s.IsWrite(), true);
31 EXPECT_EQ(s.epoch(), (u64)23);
33 EXPECT_EQ(s.epoch(), (u64)24);
36 EXPECT_EQ(s.GetIgnoreBit(), true);
38 EXPECT_EQ(s.GetIgnoreBit(), false);
40 for (int i = 0; i < 8; i++) {
42 EXPECT_EQ(s.GetHistorySize(), i);
46 EXPECT_EQ(s.GetHistorySize(), 0);
49 TEST(Shadow, Mapping) {
52 void *heap = malloc(0);
55 CHECK(IsAppMem((uptr)&global));
56 CHECK(IsAppMem((uptr)&stack));
57 CHECK(IsAppMem((uptr)heap));
59 CHECK(IsShadowMem(MemToShadow((uptr)&global)));
60 CHECK(IsShadowMem(MemToShadow((uptr)&stack)));
61 CHECK(IsShadowMem(MemToShadow((uptr)heap)));
64 TEST(Shadow, Celling) {
66 char *data = (char*)aligned_data;
67 CHECK_EQ((uptr)data % kShadowSize, 0);
68 uptr s0 = MemToShadow((uptr)&data[0]);
69 CHECK_EQ(s0 % kShadowSize, 0);
70 for (unsigned i = 1; i < kShadowCell; i++)
71 CHECK_EQ(s0, MemToShadow((uptr)&data[i]));
72 for (unsigned i = kShadowCell; i < 2*kShadowCell; i++)
73 CHECK_EQ(s0 + kShadowSize*kShadowCnt, MemToShadow((uptr)&data[i]));
74 for (unsigned i = 2*kShadowCell; i < 3*kShadowCell; i++)
75 CHECK_EQ(s0 + 2*kShadowSize*kShadowCnt, MemToShadow((uptr)&data[i]));