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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/crashpad_info.h" | 15 #include "client/crashpad_info.h" |
16 | 16 |
| 17 #include "util/misc/address_sanitizer.h" |
17 #include "util/stdlib/cxx.h" | 18 #include "util/stdlib/cxx.h" |
18 | 19 |
19 #if defined(OS_MACOSX) | 20 #if defined(OS_MACOSX) |
20 #include <mach-o/loader.h> | 21 #include <mach-o/loader.h> |
21 #endif | 22 #endif |
22 | 23 |
23 #if CXX_LIBRARY_VERSION >= 2011 | 24 #if CXX_LIBRARY_VERSION >= 2011 |
24 #include <type_traits> | 25 #include <type_traits> |
25 #endif | 26 #endif |
26 | 27 |
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65 // Put the structure in a well-known section name where it can be easily | 66 // Put the structure in a well-known section name where it can be easily |
66 // found without having to consult the symbol table. | 67 // found without having to consult the symbol table. |
67 #if defined(OS_MACOSX) | 68 #if defined(OS_MACOSX) |
68 section(SEG_DATA ",crashpad_info"), | 69 section(SEG_DATA ",crashpad_info"), |
69 #elif defined(OS_LINUX) || defined(OS_ANDROID) | 70 #elif defined(OS_LINUX) || defined(OS_ANDROID) |
70 section("crashpad_info"), | 71 section("crashpad_info"), |
71 #else // !defined(OS_MACOSX) && !defined(OS_LINUX) && !defined(OS_ANDROID) | 72 #else // !defined(OS_MACOSX) && !defined(OS_LINUX) && !defined(OS_ANDROID) |
72 #error Port | 73 #error Port |
73 #endif // !defined(OS_MACOSX) && !defined(OS_LINUX) && !defined(OS_ANDROID) | 74 #endif // !defined(OS_MACOSX) && !defined(OS_LINUX) && !defined(OS_ANDROID) |
74 | 75 |
75 #if __has_feature(address_sanitizer) | 76 #if defined(ADDRESS_SANITIZER) |
76 // AddressSanitizer would add a trailing red zone of at least 32 bytes, | 77 // AddressSanitizer would add a trailing red zone of at least 32 bytes, |
77 // which would be reflected in the size of the custom section. This confuses | 78 // which would be reflected in the size of the custom section. This confuses |
78 // MachOImageReader::GetCrashpadInfo(), which finds that the section’s size | 79 // MachOImageReader::GetCrashpadInfo(), which finds that the section’s size |
79 // disagrees with the structure’s size_ field. By specifying an alignment | 80 // disagrees with the structure’s size_ field. By specifying an alignment |
80 // greater than the red zone size, the red zone will be suppressed. | 81 // greater than the red zone size, the red zone will be suppressed. |
81 aligned(64), | 82 aligned(64), |
82 #endif // __has_feature(address_sanitizer) | 83 #endif // defined(ADDRESS_SANITIZER) |
83 | 84 |
84 // The “used” attribute prevents the structure from being dead-stripped. | 85 // The “used” attribute prevents the structure from being dead-stripped. |
85 used, | 86 used, |
86 | 87 |
87 // There’s no need to expose this as a public symbol from the symbol table. | 88 // There’s no need to expose this as a public symbol from the symbol table. |
88 // All accesses from the outside can locate the well-known section name. | 89 // All accesses from the outside can locate the well-known section name. |
89 visibility("hidden"))) | 90 visibility("hidden"))) |
90 | 91 |
91 #elif defined(OS_WIN) | 92 #elif defined(OS_WIN) |
92 | 93 |
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133 to_be_added->next = base::checked_cast<uint64_t>( | 134 to_be_added->next = base::checked_cast<uint64_t>( |
134 reinterpret_cast<uintptr_t>(user_data_minidump_stream_head_)); | 135 reinterpret_cast<uintptr_t>(user_data_minidump_stream_head_)); |
135 to_be_added->stream_type = stream_type; | 136 to_be_added->stream_type = stream_type; |
136 to_be_added->base_address = | 137 to_be_added->base_address = |
137 base::checked_cast<uint64_t>(reinterpret_cast<uintptr_t>(data)); | 138 base::checked_cast<uint64_t>(reinterpret_cast<uintptr_t>(data)); |
138 to_be_added->size = base::checked_cast<uint64_t>(size); | 139 to_be_added->size = base::checked_cast<uint64_t>(size); |
139 user_data_minidump_stream_head_ = to_be_added; | 140 user_data_minidump_stream_head_ = to_be_added; |
140 } | 141 } |
141 | 142 |
142 } // namespace crashpad | 143 } // namespace crashpad |
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