1 // Copyright (c) 2010 Google Inc. 2 // All rights reserved. 3 // 4 // Redistribution and use in source and binary forms, with or without 5 // modification, are permitted provided that the following conditions are 6 // met: 7 // 8 // * Redistributions of source code must retain the above copyright 9 // notice, this list of conditions and the following disclaimer. 10 // * Redistributions in binary form must reproduce the above 11 // copyright notice, this list of conditions and the following disclaimer 12 // in the documentation and/or other materials provided with the 13 // distribution. 14 // * Neither the name of Google Inc. nor the names of its 15 // contributors may be used to endorse or promote products derived from 16 // this software without specific prior written permission. 17 // 18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 30 // minidump_stackwalk.cc: Process a minidump with MinidumpProcessor, printing 31 // the results, including stack traces. 32 // 33 // Author: Mark Mentovai 34 35 #include <stdio.h> 36 #include <string.h> 37 38 #include <string> 39 #include <vector> 40 41 #include "common/scoped_ptr.h" 42 #include "common/using_std_string.h" 43 #include "google_breakpad/processor/basic_source_line_resolver.h" 44 #include "google_breakpad/processor/minidump.h" 45 #include "google_breakpad/processor/minidump_processor.h" 46 #include "google_breakpad/processor/process_state.h" 47 #include "processor/logging.h" 48 #include "processor/simple_symbol_supplier.h" 49 #include "processor/stackwalk_common.h" 50 51 52 namespace { 53 54 using google_breakpad::BasicSourceLineResolver; 55 using google_breakpad::Minidump; 56 using google_breakpad::MinidumpProcessor; 57 using google_breakpad::ProcessState; 58 using google_breakpad::SimpleSymbolSupplier; 59 using google_breakpad::scoped_ptr; 60 61 // Processes |minidump_file| using MinidumpProcessor. |symbol_path|, if 62 // non-empty, is the base directory of a symbol storage area, laid out in 63 // the format required by SimpleSymbolSupplier. If such a storage area 64 // is specified, it is made available for use by the MinidumpProcessor. 65 // 66 // Returns the value of MinidumpProcessor::Process. If processing succeeds, 67 // prints identifying OS and CPU information from the minidump, crash 68 // information if the minidump was produced as a result of a crash, and 69 // call stacks for each thread contained in the minidump. All information 70 // is printed to stdout. 71 bool PrintMinidumpProcess(const string &minidump_file, 72 const std::vector<string> &symbol_paths, 73 bool machine_readable, 74 bool output_stack_contents) { 75 scoped_ptr<SimpleSymbolSupplier> symbol_supplier; 76 if (!symbol_paths.empty()) { 77 // TODO(mmentovai): check existence of symbol_path if specified? 78 symbol_supplier.reset(new SimpleSymbolSupplier(symbol_paths)); 79 } 80 81 BasicSourceLineResolver resolver; 82 MinidumpProcessor minidump_processor(symbol_supplier.get(), &resolver); 83 84 // Process the minidump. 85 Minidump dump(minidump_file); 86 if (!dump.Read()) { 87 BPLOG(ERROR) << "Minidump " << dump.path() << " could not be read"; 88 return false; 89 } 90 ProcessState process_state; 91 if (minidump_processor.Process(&dump, &process_state) != 92 google_breakpad::PROCESS_OK) { 93 BPLOG(ERROR) << "MinidumpProcessor::Process failed"; 94 return false; 95 } 96 97 if (machine_readable) { 98 PrintProcessStateMachineReadable(process_state); 99 } else { 100 PrintProcessState(process_state, output_stack_contents, &resolver); 101 } 102 103 return true; 104 } 105 106 void usage(const char *program_name) { 107 fprintf(stderr, "usage: %s [-m|-s] <minidump-file> [symbol-path ...]\n" 108 " -m : Output in machine-readable format\n" 109 " -s : Output stack contents\n", 110 program_name); 111 } 112 113 } // namespace 114 115 int main(int argc, char **argv) { 116 BPLOG_INIT(&argc, &argv); 117 118 if (argc < 2) { 119 usage(argv[0]); 120 return 1; 121 } 122 123 const char *minidump_file; 124 bool machine_readable = false; 125 bool output_stack_contents = false; 126 int symbol_path_arg; 127 128 if (strcmp(argv[1], "-m") == 0) { 129 if (argc < 3) { 130 usage(argv[0]); 131 return 1; 132 } 133 134 machine_readable = true; 135 minidump_file = argv[2]; 136 symbol_path_arg = 3; 137 } else if (strcmp(argv[1], "-s") == 0) { 138 if (argc < 3) { 139 usage(argv[0]); 140 return 1; 141 } 142 143 output_stack_contents = true; 144 minidump_file = argv[2]; 145 symbol_path_arg = 3; 146 } else { 147 minidump_file = argv[1]; 148 symbol_path_arg = 2; 149 } 150 151 // extra arguments are symbol paths 152 std::vector<string> symbol_paths; 153 if (argc > symbol_path_arg) { 154 for (int argi = symbol_path_arg; argi < argc; ++argi) 155 symbol_paths.push_back(argv[argi]); 156 } 157 158 return PrintMinidumpProcess(minidump_file, 159 symbol_paths, 160 machine_readable, 161 output_stack_contents) ? 0 : 1; 162 } 163
