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Side by Side Diff: src/processor/exploitability_linux.cc

Issue 1216063004: This CL adds support for ARM and ARM64 architectures when calculating (Closed) Base URL: http://google-breakpad.googlecode.com/svn/trunk/
Patch Set: Created 5 years, 5 months ago
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1 // Copyright (c) 2013 Google Inc. 1 // Copyright (c) 2013 Google Inc.
2 // All rights reserved. 2 // All rights reserved.
3 // 3 //
4 // Redistribution and use in source and binary forms, with or without 4 // Redistribution and use in source and binary forms, with or without
5 // modification, are permitted provided that the following conditions are 5 // modification, are permitted provided that the following conditions are
6 // met: 6 // met:
7 // 7 //
8 // * Redistributions of source code must retain the above copyright 8 // * Redistributions of source code must retain the above copyright
9 // notice, this list of conditions and the following disclaimer. 9 // notice, this list of conditions and the following disclaimer.
10 // * Redistributions in binary form must reproduce the above 10 // * Redistributions in binary form must reproduce the above
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99 99
100 // Getting instruction pointer based off architecture. 100 // Getting instruction pointer based off architecture.
101 uint32_t architecture = context->GetContextCPU(); 101 uint32_t architecture = context->GetContextCPU();
102 switch (architecture) { 102 switch (architecture) {
103 case MD_CONTEXT_X86: 103 case MD_CONTEXT_X86:
104 instruction_ptr = context->GetContextX86()->eip; 104 instruction_ptr = context->GetContextX86()->eip;
105 break; 105 break;
106 case MD_CONTEXT_AMD64: 106 case MD_CONTEXT_AMD64:
107 instruction_ptr = context->GetContextAMD64()->rip; 107 instruction_ptr = context->GetContextAMD64()->rip;
108 break; 108 break;
109 case MD_CONTEXT_ARM:
110 instruction_ptr =
111 context->GetContextARM()->iregs[MD_CONTEXT_ARM_REG_PC];
112 break;
113 case MD_CONTEXT_ARM64:
114 instruction_ptr =
115 context->GetContextARM64()->iregs[MD_CONTEXT_ARM64_REG_PC];
116 break;
109 default: 117 default:
110 // TODO(liuandrew): Add support ARM and arm64 architectures.
111 BPLOG(INFO) << "Unsupported architecture."; 118 BPLOG(INFO) << "Unsupported architecture.";
112 return EXPLOITABILITY_ERR_PROCESSING; 119 return EXPLOITABILITY_ERR_PROCESSING;
113 } 120 }
114 121
115 if (!this->InstructionPointerInCode(instruction_ptr)) { 122 if (!this->InstructionPointerInCode(instruction_ptr)) {
116 return EXPLOITABILITY_HIGH; 123 return EXPLOITABILITY_HIGH;
117 } 124 }
118 125
119 return EXPLOITABILITY_NONE; 126 return EXPLOITABILITY_NONE;
120 } 127 }
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136 // If the memory mapping retrieval fails, we will check the modules 143 // If the memory mapping retrieval fails, we will check the modules
137 // to see if the instruction pointer is inside a module. 144 // to see if the instruction pointer is inside a module.
138 // TODO(liuandrew): Check if the instruction pointer lies in an executable 145 // TODO(liuandrew): Check if the instruction pointer lies in an executable
139 // region within the module. 146 // region within the module.
140 MinidumpModuleList *minidump_module_list = dump_->GetModuleList(); 147 MinidumpModuleList *minidump_module_list = dump_->GetModuleList();
141 return !minidump_module_list || 148 return !minidump_module_list ||
142 minidump_module_list->GetModuleForAddress(instruction_ptr); 149 minidump_module_list->GetModuleForAddress(instruction_ptr);
143 } 150 }
144 151
145 } // namespace google_breakpad 152 } // namespace google_breakpad
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