1// Copyright (c) 2011, 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#include <paths.h>
31#include <stdio.h>
32#include <unistd.h>
33
34#include <cstring>
35#include <iostream>
36#include <string>
37#include <vector>
38
39#include "common/linux/dump_symbols.h"
40#include "common/path_helper.h"
41
42using google_breakpad::WriteSymbolFile;
43using google_breakpad::WriteSymbolFileHeader;
44
45int usage(const char* self) {
46 fprintf(stderr,
47 "Usage: %s [OPTION] <binary-with-debugging-info> "
48 "[directories-for-debug-file]\n\n",
49 google_breakpad::BaseName(self).c_str());
50 fprintf(stderr, "Options:\n");
51 fprintf(stderr, " -i: Output module header information only.\n");
52 fprintf(stderr, " -c Do not generate CFI section\n");
53 fprintf(stderr, " -d Generate INLINE/INLINE_ORIGIN records\n");
54 fprintf(stderr, " -r Do not handle inter-compilation "
55 "unit references\n");
56 fprintf(stderr, " -v Print all warnings to stderr\n");
57 fprintf(stderr, " -n <name> Use specified name for name of the object\n");
58 fprintf(stderr, " -o <os> Use specified name for the "
59 "operating system\n");
60 return 1;
61}
62
63int main(int argc, char** argv) {
64 if (argc < 2)
65 return usage(argv[0]);
66 bool header_only = false;
67 bool cfi = true;
68 bool handle_inlines = false;
69 bool handle_inter_cu_refs = true;
70 bool log_to_stderr = false;
71 std::string obj_name;
72 const char* obj_os = "Linux";
73 int arg_index = 1;
74 while (arg_index < argc && strlen(argv[arg_index]) > 0 &&
75 argv[arg_index][0] == '-') {
76 if (strcmp("-i", argv[arg_index]) == 0) {
77 header_only = true;
78 } else if (strcmp("-c", argv[arg_index]) == 0) {
79 cfi = false;
80 } else if (strcmp("-d", argv[arg_index]) == 0) {
81 handle_inlines = true;
82 } else if (strcmp("-r", argv[arg_index]) == 0) {
83 handle_inter_cu_refs = false;
84 } else if (strcmp("-v", argv[arg_index]) == 0) {
85 log_to_stderr = true;
86 } else if (strcmp("-n", argv[arg_index]) == 0) {
87 if (arg_index + 1 >= argc) {
88 fprintf(stderr, "Missing argument to -n\n");
89 return usage(argv[0]);
90 }
91 obj_name = argv[arg_index + 1];
92 ++arg_index;
93 } else if (strcmp("-o", argv[arg_index]) == 0) {
94 if (arg_index + 1 >= argc) {
95 fprintf(stderr, "Missing argument to -o\n");
96 return usage(argv[0]);
97 }
98 obj_os = argv[arg_index + 1];
99 ++arg_index;
100 } else {
101 printf("2.4 %s\n", argv[arg_index]);
102 return usage(argv[0]);
103 }
104 ++arg_index;
105 }
106 if (arg_index == argc)
107 return usage(argv[0]);
108 // Save stderr so it can be used below.
109 FILE* saved_stderr = fdopen(dup(fileno(stderr)), "w");
110 if (!log_to_stderr) {
111 if (freopen(_PATH_DEVNULL, "w", stderr)) {
112 // If it fails, not a lot we can (or should) do.
113 // Add this brace section to silence gcc warnings.
114 }
115 }
116 const char* binary;
117 std::vector<string> debug_dirs;
118 binary = argv[arg_index];
119 for (int debug_dir_index = arg_index + 1;
120 debug_dir_index < argc;
121 ++debug_dir_index) {
122 debug_dirs.push_back(argv[debug_dir_index]);
123 }
124
125 if (obj_name.empty())
126 obj_name = binary;
127
128 if (header_only) {
129 if (!WriteSymbolFileHeader(binary, obj_name, obj_os, std::cout)) {
130 fprintf(saved_stderr, "Failed to process file.\n");
131 return 1;
132 }
133 } else {
134 SymbolData symbol_data = (handle_inlines ? INLINES : NO_DATA) |
135 (cfi ? CFI : NO_DATA) | SYMBOLS_AND_FILES;
136 google_breakpad::DumpOptions options(symbol_data, handle_inter_cu_refs);
137 if (!WriteSymbolFile(binary, obj_name, obj_os, debug_dirs, options,
138 std::cout)) {
139 fprintf(saved_stderr, "Failed to write symbol file.\n");
140 return 1;
141 }
142 }
143
144 return 0;
145}
146