1// Copyright (c) 2009, 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// Breakpad test application for Linux. When run, it generates one on-demand
31// minidump and then crashes, which should generate an on-crash minidump.
32// dump_syms can be used to extract symbol information for use in processing.
33
34// To build:
35// g++ -g -o linux_test_app -I ../../ -L../../client/linux linux_test_app.cc \
36//   -lbreakpad
37// Add -m32 to build a 32-bit executable, or -m64 for a 64-bit one
38// (assuming your environment supports it). Replace -g with -gstabs+ to
39// generate an executable with STABS symbols (needs -m32), or -gdwarf-2 for one
40// with DWARF symbols (32- or 64-bit)
41
42#include <stdio.h>
43#include <sys/types.h>
44#include <unistd.h>
45
46#include <string>
47
48#include "client/linux/handler/exception_handler.h"
49#include "third_party/lss/linux_syscall_support.h"
50
51namespace {
52
53// google_breakpad::MinidumpCallback to invoke after minidump generation.
54static bool callback(const char *dump_path, const char *id,
55                     void *context,
56                     bool succeeded) {
57  if (succeeded) {
58    printf("dump guid is %s\n", id);
59  } else {
60    printf("dump failed\n");
61  }
62  fflush(stdout);
63
64  return succeeded;
65}
66
67static void CrashFunction() {
68  int *i = reinterpret_cast<int*>(0x45);
69  *i = 5;  // crash!
70}
71
72}  // namespace
73
74int main(int argc, char **argv) {
75  google_breakpad::ExceptionHandler eh(".", NULL, callback, NULL, true);
76  if (!eh.WriteMinidump()) {
77    printf("Failed to generate on-demand minidump\n");
78  }
79  CrashFunction();
80  printf("did not crash?\n");
81  return 0;
82}
83