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.
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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,
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24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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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 <stdio.h>
31 
32 #include <cstring>
33 #include <iostream>
34 #include <string>
35 #include <vector>
36 
37 #include "common/linux/dump_symbols.h"
38 
39 using google_breakpad::WriteSymbolFile;
40 
usage(const char * self)41 int usage(const char* self) {
42   fprintf(stderr, "Usage: %s [OPTION] <binary-with-debugging-info> "
43           "[directories-for-debug-file]\n\n", self);
44   fprintf(stderr, "Options:\n");
45   fprintf(stderr, "  -c    Do not generate CFI section\n");
46   fprintf(stderr, "  -r    Do not handle inter-compilation unit references\n");
47   return 1;
48 }
49 
main(int argc,char ** argv)50 int main(int argc, char **argv) {
51   if (argc < 2)
52     return usage(argv[0]);
53 
54   bool cfi = true;
55   bool handle_inter_cu_refs = true;
56   int arg_index = 1;
57   while (arg_index < argc && strlen(argv[arg_index]) > 0 &&
58          argv[arg_index][0] == '-') {
59     if (strcmp("-c", argv[arg_index]) == 0) {
60       cfi = false;
61     } else if (strcmp("-r", argv[arg_index]) == 0) {
62       handle_inter_cu_refs = false;
63     } else {
64       return usage(argv[0]);
65     }
66     ++arg_index;
67   }
68   if (arg_index == argc)
69     return usage(argv[0]);
70 
71   const char* binary;
72   std::vector<string> debug_dirs;
73   binary = argv[arg_index];
74   for (int debug_dir_index = arg_index + 1;
75        debug_dir_index < argc;
76        ++debug_dir_index) {
77     debug_dirs.push_back(argv[debug_dir_index]);
78   }
79 
80   SymbolData symbol_data = cfi ? ALL_SYMBOL_DATA : NO_CFI;
81   google_breakpad::DumpOptions options(symbol_data, handle_inter_cu_refs);
82   if (!WriteSymbolFile(binary, debug_dirs, options, std::cout)) {
83     fprintf(stderr, "Failed to write symbol file.\n");
84     return 1;
85   }
86 
87   return 0;
88 }
89