breakpad_nlist_test.cc revision d6f0f92de3692867d96bab15d70e0ce7a76cc04e 
1// Copyright (c) 2008, Google Inc.
2// All rights reserved
3// Redistribution and use in source and binary forms, with or without
4// modification, are permitted provided that the following conditions are
5// met:
6//
7//     * Redistributions of source code must retain the above copyright
8// notice, this list of conditions and the following disclaimer.
9//     * Redistributions in binary form must reproduce the above
10// copyright notice, this list of conditions and the following disclaimer
11// in the documentation and/or other materials provided with the
12// distribution.
13//     * Neither the name of Google Inc. nor the names of its
14// contributors may be used to endorse or promote products derived from
15// this software without specific prior written permission.
16//
17// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28
29//
30//  breakpad_nlist_test.cc
31//  minidump_test
32//
33//  Created by Neal Sidhwaney on 4/13/08.
34//  Copyright 2008 Google Inc. All rights reserved.
35//
36
37#include "client/mac/handler/testcases/breakpad_nlist_test.h"
38#include <mach-o/nlist.h>
39#include "client/mac/handler/breakpad_nlist_64.h"
40
41BreakpadNlistTest test1(TEST_INVOCATION(BreakpadNlistTest, CompareToNM));
42
43BreakpadNlistTest::BreakpadNlistTest(TestInvocation *invocation)
44    : TestCase(invocation) {
45}
46
47
48BreakpadNlistTest::~BreakpadNlistTest() {
49}
50
51void BreakpadNlistTest::CompareToNM() {
52#if TARGET_CPU_X86_64
53  system("/usr/bin/nm -arch x86_64 /usr/lib/dyld > /tmp/dyld-namelist.txt");
54#elif TARGET_CPU_PPC64
55  system("/usr/bin/nm -arch ppc64 /usr/lib/dyld > /tmp/dyld-namelist.txt");
56#endif
57
58  FILE *fd = fopen("/tmp/dyld-namelist.txt", "rt");
59
60  char oneNMAddr[30];
61  char symbolType;
62  char symbolName[500];
63  while (!feof(fd)) {
64    fscanf(fd, "%s %c %s", oneNMAddr, &symbolType, symbolName);
65    breakpad_nlist symbolList[2];
66    breakpad_nlist &list = symbolList[0];
67
68    memset(symbolList, 0, sizeof(breakpad_nlist)*2);
69    const char *symbolNames[2];
70    symbolNames[0] = (const char*)symbolName;
71    symbolNames[1] = "\0";
72    breakpad_nlist_64("/usr/lib/dyld", &list, symbolNames);
73    uint64_t nmAddr = strtol(oneNMAddr, NULL, 16);
74    if (!IsSymbolMoreThanOnceInDyld(symbolName)) {
75      CPTAssert(nmAddr == symbolList[0].n_value);
76    }
77  }
78
79  fclose(fd);
80}
81
82bool BreakpadNlistTest::IsSymbolMoreThanOnceInDyld(const char *symbolName) {
83  // These are the symbols that occur more than once when nm dumps
84  // the symbol table of /usr/lib/dyld.  Our nlist program returns
85  // the first address because it's doing a search so we need to exclude
86  // these from causing the test to fail
87  const char *multipleSymbols[] = {
88    "__Z41__static_initialization_and_destruction_0ii",
89    "___tcf_0",
90    "___tcf_1",
91    "_read_encoded_value_with_base",
92    "_read_sleb128",
93    "_read_uleb128",
94    "\0"};
95
96  bool found = false;
97
98  for (int i = 0; multipleSymbols[i][0]; i++) {
99    if (!strcmp(multipleSymbols[i], symbolName)) {
100      found = true;
101      break;
102    }
103  }
104
105  return found;
106}
107