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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include <sstream> | 5 #include <sstream> |
6 #include <string> | 6 #include <string> |
7 | 7 |
8 #include "base/debug/stack_trace.h" | 8 #include "base/debug/stack_trace.h" |
9 #include "base/logging.h" | 9 #include "base/logging.h" |
| 10 #include "base/process_util.h" |
| 11 #include "base/test/multiprocess_test.h" |
| 12 #include "base/test/test_timeouts.h" |
10 #include "testing/gtest/include/gtest/gtest.h" | 13 #include "testing/gtest/include/gtest/gtest.h" |
| 14 #include "testing/multiprocess_func_list.h" |
11 | 15 |
12 namespace base { | 16 namespace base { |
13 namespace debug { | 17 namespace debug { |
14 | 18 |
| 19 typedef MultiProcessTest StackTraceTest; |
| 20 |
15 // Note: On Linux, this test currently only fully works on Debug builds. | 21 // Note: On Linux, this test currently only fully works on Debug builds. |
16 // See comments in the #ifdef soup if you intend to change this. | 22 // See comments in the #ifdef soup if you intend to change this. |
17 #if defined(OS_WIN) | 23 #if defined(OS_WIN) |
18 // Always fails on Windows: crbug.com/32070 | 24 // Always fails on Windows: crbug.com/32070 |
19 #define MAYBE_OutputToStream DISABLED_OutputToStream | 25 #define MAYBE_OutputToStream DISABLED_OutputToStream |
20 #else | 26 #else |
21 #define MAYBE_OutputToStream OutputToStream | 27 #define MAYBE_OutputToStream OutputToStream |
22 #endif | 28 #endif |
23 TEST(StackTrace, MAYBE_OutputToStream) { | 29 TEST_F(StackTraceTest, MAYBE_OutputToStream) { |
24 StackTrace trace; | 30 StackTrace trace; |
25 | 31 |
26 // Dump the trace into a string. | 32 // Dump the trace into a string. |
27 std::ostringstream os; | 33 std::ostringstream os; |
28 trace.OutputToStream(&os); | 34 trace.OutputToStream(&os); |
29 std::string backtrace_message = os.str(); | 35 std::string backtrace_message = os.str(); |
30 | 36 |
31 // ToString() should produce the same output. | 37 // ToString() should produce the same output. |
32 EXPECT_EQ(backtrace_message, trace.ToString()); | 38 EXPECT_EQ(backtrace_message, trace.ToString()); |
33 | 39 |
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62 // which should be the first symbol in the trace. | 68 // which should be the first symbol in the trace. |
63 // | 69 // |
64 // TODO(port): Find a more reliable way to resolve symbols. | 70 // TODO(port): Find a more reliable way to resolve symbols. |
65 | 71 |
66 // Expect to at least find main. | 72 // Expect to at least find main. |
67 EXPECT_TRUE(backtrace_message.find("start") != std::string::npos) | 73 EXPECT_TRUE(backtrace_message.find("start") != std::string::npos) |
68 << "Expected to find start in backtrace:\n" | 74 << "Expected to find start in backtrace:\n" |
69 << backtrace_message; | 75 << backtrace_message; |
70 | 76 |
71 #endif | 77 #endif |
72 #elif defined(__GLIBCXX__) | 78 #elif defined(USE_SYMBOLIZE) |
73 // This branch is for gcc-compiled code, but not Mac due to the | 79 // This branch is for gcc-compiled code, but not Mac due to the |
74 // above #if. | 80 // above #if. |
75 // Expect a demangled symbol. | 81 // Expect a demangled symbol. |
76 EXPECT_TRUE(backtrace_message.find("testing::Test::Run()") != | 82 EXPECT_TRUE(backtrace_message.find("testing::Test::Run()") != |
77 std::string::npos) | 83 std::string::npos) |
78 << "Expected a demangled symbol in backtrace:\n" | 84 << "Expected a demangled symbol in backtrace:\n" |
79 << backtrace_message; | 85 << backtrace_message; |
80 | 86 |
81 #elif 0 | 87 #elif 0 |
82 // This is the fall-through case; it used to cover Windows. | 88 // This is the fall-through case; it used to cover Windows. |
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96 | 102 |
97 // Expect to find this function as well. | 103 // Expect to find this function as well. |
98 // Note: This will fail if not linked with -rdynamic (aka -export_dynamic) | 104 // Note: This will fail if not linked with -rdynamic (aka -export_dynamic) |
99 EXPECT_TRUE(backtrace_message.find(__func__) != std::string::npos) | 105 EXPECT_TRUE(backtrace_message.find(__func__) != std::string::npos) |
100 << "Expected to find " << __func__ << " in backtrace:\n" | 106 << "Expected to find " << __func__ << " in backtrace:\n" |
101 << backtrace_message; | 107 << backtrace_message; |
102 | 108 |
103 #endif // define(OS_MACOSX) | 109 #endif // define(OS_MACOSX) |
104 } | 110 } |
105 | 111 |
| 112 MULTIPROCESS_TEST_MAIN(MismatchedMallocChildProcess) { |
| 113 char* pointer = new char[10]; |
| 114 delete pointer; |
| 115 return 2; |
| 116 } |
| 117 |
| 118 // Regression test for StackDumpingSignalHandler async-signal unsafety. |
| 119 // Combined with tcmalloc's debugallocation, that signal handler |
| 120 // and e.g. mismatched new[]/delete would cause a hang because |
| 121 // of re-entering malloc. |
| 122 TEST_F(StackTraceTest, AsyncSignalUnsafeSignalHandlerHang) { |
| 123 ProcessHandle child = this->SpawnChild("MismatchedMallocChildProcess", false); |
| 124 ASSERT_NE(kNullProcessHandle, child); |
| 125 ASSERT_TRUE(WaitForSingleProcess(child, TestTimeouts::action_timeout())); |
| 126 } |
| 127 |
106 // The test is used for manual testing, e.g., to see the raw output. | 128 // The test is used for manual testing, e.g., to see the raw output. |
107 TEST(StackTrace, DebugOutputToStream) { | 129 TEST_F(StackTraceTest, DebugOutputToStream) { |
108 StackTrace trace; | 130 StackTrace trace; |
109 std::ostringstream os; | 131 std::ostringstream os; |
110 trace.OutputToStream(&os); | 132 trace.OutputToStream(&os); |
111 VLOG(1) << os.str(); | 133 VLOG(1) << os.str(); |
112 } | 134 } |
113 | 135 |
114 // The test is used for manual testing, e.g., to see the raw output. | 136 // The test is used for manual testing, e.g., to see the raw output. |
115 TEST(StackTrace, DebugPrintBacktrace) { | 137 TEST_F(StackTraceTest, DebugPrintBacktrace) { |
116 StackTrace().PrintBacktrace(); | 138 StackTrace().PrintBacktrace(); |
117 } | 139 } |
118 | 140 |
119 } // namespace debug | 141 } // namespace debug |
120 } // namespace base | 142 } // namespace base |
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