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1 // Copyright 2014 The Crashpad Authors. All rights reserved. | 1 // Copyright 2014 The Crashpad Authors. All rights reserved. |
2 // | 2 // |
3 // Licensed under the Apache License, Version 2.0 (the "License"); | 3 // Licensed under the Apache License, Version 2.0 (the "License"); |
4 // you may not use this file except in compliance with the License. | 4 // you may not use this file except in compliance with the License. |
5 // You may obtain a copy of the License at | 5 // You may obtain a copy of the License at |
6 // | 6 // |
7 // http://www.apache.org/licenses/LICENSE-2.0 | 7 // http://www.apache.org/licenses/LICENSE-2.0 |
8 // | 8 // |
9 // Unless required by applicable law or agreed to in writing, software | 9 // Unless required by applicable law or agreed to in writing, software |
10 // distributed under the License is distributed on an "AS IS" BASIS, | 10 // distributed under the License is distributed on an "AS IS" BASIS, |
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
12 // See the License for the specific language governing permissions and | 12 // See the License for the specific language governing permissions and |
13 // limitations under the License. | 13 // limitations under the License. |
14 | 14 |
15 #include "client/capture_context_mac.h" | 15 #include "client/capture_context_mac.h" |
16 | 16 |
17 #include <mach/mach.h> | 17 #include <mach/mach.h> |
18 #include <stdint.h> | 18 #include <stdint.h> |
19 | 19 |
20 #include <algorithm> | 20 #include <algorithm> |
21 | 21 |
22 #include "build/build_config.h" | 22 #include "build/build_config.h" |
23 #include "gtest/gtest.h" | 23 #include "gtest/gtest.h" |
| 24 #include "util/misc/address_sanitizer.h" |
24 #include "util/misc/implicit_cast.h" | 25 #include "util/misc/implicit_cast.h" |
25 | 26 |
26 namespace crashpad { | 27 namespace crashpad { |
27 namespace test { | 28 namespace test { |
28 namespace { | 29 namespace { |
29 | 30 |
30 // If the context structure has fields that tell whether it’s valid, such as | 31 // If the context structure has fields that tell whether it’s valid, such as |
31 // magic numbers or size fields, sanity-checks those fields for validity with | 32 // magic numbers or size fields, sanity-checks those fields for validity with |
32 // fatal gtest assertions. For other fields, where it’s possible to reason about | 33 // fatal gtest assertions. For other fields, where it’s possible to reason about |
33 // their validity based solely on their contents, sanity-checks via nonfatal | 34 // their validity based solely on their contents, sanity-checks via nonfatal |
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96 | 97 |
97 { | 98 { |
98 SCOPED_TRACE("context_1"); | 99 SCOPED_TRACE("context_1"); |
99 ASSERT_NO_FATAL_FAILURE(SanityCheckContext(context_1)); | 100 ASSERT_NO_FATAL_FAILURE(SanityCheckContext(context_1)); |
100 } | 101 } |
101 | 102 |
102 // The program counter reference value is this function’s address. The | 103 // The program counter reference value is this function’s address. The |
103 // captured program counter should be slightly greater than or equal to the | 104 // captured program counter should be slightly greater than or equal to the |
104 // reference program counter. | 105 // reference program counter. |
105 uintptr_t pc = ProgramCounterFromContext(context_1); | 106 uintptr_t pc = ProgramCounterFromContext(context_1); |
106 #if !__has_feature(address_sanitizer) | 107 |
| 108 #if !defined(ADDRESS_SANITIZER) |
107 // AddressSanitizer can cause enough code bloat that the “nearby” check would | 109 // AddressSanitizer can cause enough code bloat that the “nearby” check would |
108 // likely fail. | 110 // likely fail. |
109 const uintptr_t kReferencePC = | 111 const uintptr_t kReferencePC = |
110 reinterpret_cast<uintptr_t>(TestCaptureContext); | 112 reinterpret_cast<uintptr_t>(TestCaptureContext); |
111 EXPECT_LT(pc - kReferencePC, 64u); | 113 EXPECT_LT(pc - kReferencePC, 64u); |
112 #endif | 114 #endif // !defined(ADDRESS_SANITIZER) |
113 | 115 |
114 // Declare sp and context_2 here because all local variables need to be | 116 // Declare sp and context_2 here because all local variables need to be |
115 // declared before computing the stack pointer reference value, so that the | 117 // declared before computing the stack pointer reference value, so that the |
116 // reference value can be the lowest value possible. | 118 // reference value can be the lowest value possible. |
117 uintptr_t sp; | 119 uintptr_t sp; |
118 NativeCPUContext context_2; | 120 NativeCPUContext context_2; |
119 | 121 |
120 // The stack pointer reference value is the lowest address of a local variable | 122 // The stack pointer reference value is the lowest address of a local variable |
121 // in this function. The captured program counter will be slightly less than | 123 // in this function. The captured program counter will be slightly less than |
122 // or equal to the reference stack pointer. | 124 // or equal to the reference stack pointer. |
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143 EXPECT_GT(ProgramCounterFromContext(context_2), pc); | 145 EXPECT_GT(ProgramCounterFromContext(context_2), pc); |
144 } | 146 } |
145 | 147 |
146 TEST(CaptureContextMac, CaptureContext) { | 148 TEST(CaptureContextMac, CaptureContext) { |
147 ASSERT_NO_FATAL_FAILURE(TestCaptureContext()); | 149 ASSERT_NO_FATAL_FAILURE(TestCaptureContext()); |
148 } | 150 } |
149 | 151 |
150 } // namespace | 152 } // namespace |
151 } // namespace test | 153 } // namespace test |
152 } // namespace crashpad | 154 } // namespace crashpad |
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