mirror of
https://github.com/chromium/crashpad.git
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ab01df1ffe
Because DumpAndCrashTargetProcess() suspends the process, the thread suspend count is one too high for all threads other than the injection one in the thread snapshots. Compensate for this when we detect this type of exception. BUG=crashpad:103 Change-Id: Ib77112fddf5324fc0e43f598604e56f77d67ff54 Reviewed-on: https://chromium-review.googlesource.com/340372 Reviewed-by: Mark Mentovai <mark@chromium.org>
279 lines
10 KiB
C++
279 lines
10 KiB
C++
// Copyright 2015 The Crashpad Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "snapshot/crashpad_info_client_options.h"
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#include "base/files/file_path.h"
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#include "base/macros.h"
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#include "base/strings/utf_string_conversions.h"
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#include "build/build_config.h"
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#include "client/crashpad_info.h"
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#include "gtest/gtest.h"
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#include "test/errors.h"
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#include "test/paths.h"
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#if defined(OS_MACOSX)
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#include <dlfcn.h>
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#include "snapshot/mac/process_snapshot_mac.h"
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#elif defined(OS_WIN)
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#include <windows.h>
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#include "snapshot/win/process_snapshot_win.h"
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#endif
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namespace crashpad {
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namespace test {
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namespace {
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TEST(CrashpadInfoClientOptions, TriStateFromCrashpadInfo) {
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EXPECT_EQ(TriState::kUnset,
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CrashpadInfoClientOptions::TriStateFromCrashpadInfo(0));
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EXPECT_EQ(TriState::kEnabled,
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CrashpadInfoClientOptions::TriStateFromCrashpadInfo(1));
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EXPECT_EQ(TriState::kDisabled,
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CrashpadInfoClientOptions::TriStateFromCrashpadInfo(2));
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// These will produce log messages but should result in kUnset being returned.
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EXPECT_EQ(TriState::kUnset,
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CrashpadInfoClientOptions::TriStateFromCrashpadInfo(3));
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EXPECT_EQ(TriState::kUnset,
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CrashpadInfoClientOptions::TriStateFromCrashpadInfo(4));
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EXPECT_EQ(TriState::kUnset,
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CrashpadInfoClientOptions::TriStateFromCrashpadInfo(0xff));
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}
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class ScopedUnsetCrashpadInfoOptions {
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public:
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explicit ScopedUnsetCrashpadInfoOptions(CrashpadInfo* crashpad_info)
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: crashpad_info_(crashpad_info) {
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}
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~ScopedUnsetCrashpadInfoOptions() {
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crashpad_info_->set_crashpad_handler_behavior(TriState::kUnset);
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crashpad_info_->set_system_crash_reporter_forwarding(TriState::kUnset);
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crashpad_info_->set_gather_indirectly_referenced_memory(TriState::kUnset,
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0);
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}
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private:
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CrashpadInfo* crashpad_info_;
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DISALLOW_COPY_AND_ASSIGN(ScopedUnsetCrashpadInfoOptions);
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};
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CrashpadInfoClientOptions SelfProcessSnapshotAndGetCrashpadOptions() {
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#if defined(OS_MACOSX)
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ProcessSnapshotMac process_snapshot;
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EXPECT_TRUE(process_snapshot.Initialize(mach_task_self()));
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#elif defined(OS_WIN)
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ProcessSnapshotWin process_snapshot;
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EXPECT_TRUE(process_snapshot.Initialize(
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GetCurrentProcess(), ProcessSuspensionState::kRunning, 0, 0));
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#else
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#error Port.
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#endif // OS_MACOSX
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CrashpadInfoClientOptions options;
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process_snapshot.GetCrashpadOptions(&options);
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return options;
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}
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TEST(CrashpadInfoClientOptions, OneModule) {
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// Make sure that the initial state has all values unset.
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auto options = SelfProcessSnapshotAndGetCrashpadOptions();
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EXPECT_EQ(TriState::kUnset, options.crashpad_handler_behavior);
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EXPECT_EQ(TriState::kUnset, options.system_crash_reporter_forwarding);
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EXPECT_EQ(TriState::kUnset, options.gather_indirectly_referenced_memory);
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EXPECT_EQ(0u, options.indirectly_referenced_memory_cap);
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CrashpadInfo* crashpad_info = CrashpadInfo::GetCrashpadInfo();
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ASSERT_TRUE(crashpad_info);
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{
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ScopedUnsetCrashpadInfoOptions unset(crashpad_info);
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crashpad_info->set_crashpad_handler_behavior(TriState::kEnabled);
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options = SelfProcessSnapshotAndGetCrashpadOptions();
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EXPECT_EQ(TriState::kEnabled, options.crashpad_handler_behavior);
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EXPECT_EQ(TriState::kUnset, options.system_crash_reporter_forwarding);
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EXPECT_EQ(TriState::kUnset, options.gather_indirectly_referenced_memory);
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EXPECT_EQ(0u, options.indirectly_referenced_memory_cap);
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}
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{
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ScopedUnsetCrashpadInfoOptions unset(crashpad_info);
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crashpad_info->set_system_crash_reporter_forwarding(TriState::kDisabled);
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options = SelfProcessSnapshotAndGetCrashpadOptions();
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EXPECT_EQ(TriState::kUnset, options.crashpad_handler_behavior);
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EXPECT_EQ(TriState::kDisabled, options.system_crash_reporter_forwarding);
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EXPECT_EQ(TriState::kUnset, options.gather_indirectly_referenced_memory);
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EXPECT_EQ(0u, options.indirectly_referenced_memory_cap);
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}
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{
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ScopedUnsetCrashpadInfoOptions unset(crashpad_info);
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crashpad_info->set_gather_indirectly_referenced_memory(TriState::kEnabled,
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1234);
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options = SelfProcessSnapshotAndGetCrashpadOptions();
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EXPECT_EQ(TriState::kUnset, options.crashpad_handler_behavior);
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EXPECT_EQ(TriState::kUnset, options.system_crash_reporter_forwarding);
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EXPECT_EQ(TriState::kEnabled, options.gather_indirectly_referenced_memory);
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EXPECT_EQ(1234u, options.indirectly_referenced_memory_cap);
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}
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}
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#if defined(OS_POSIX)
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using DlHandle = void*;
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#elif defined(OS_WIN)
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using DlHandle = HMODULE;
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#endif // OS_POSIX
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class ScopedDlHandle {
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public:
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explicit ScopedDlHandle(DlHandle dl_handle)
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: dl_handle_(dl_handle) {
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}
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~ScopedDlHandle() {
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if (dl_handle_) {
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#if defined(OS_POSIX)
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if (dlclose(dl_handle_) != 0) {
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LOG(ERROR) << "dlclose: " << dlerror();
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}
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#elif defined(OS_WIN)
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if (!FreeLibrary(dl_handle_))
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PLOG(ERROR) << "FreeLibrary";
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#endif // OS_POSIX
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}
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}
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bool valid() const { return dl_handle_ != nullptr; }
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template <typename T>
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T LookUpSymbol(const char* symbol_name) {
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#if defined(OS_POSIX)
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return reinterpret_cast<T>(dlsym(dl_handle_, symbol_name));
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#elif defined(OS_WIN)
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return reinterpret_cast<T>(GetProcAddress(dl_handle_, symbol_name));
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#endif // OS_POSIX
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}
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private:
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DlHandle dl_handle_;
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DISALLOW_COPY_AND_ASSIGN(ScopedDlHandle);
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};
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TEST(CrashpadInfoClientOptions, TwoModules) {
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// Open the module, which has its own CrashpadInfo structure.
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#if defined(OS_MACOSX)
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const base::FilePath::StringType kDlExtension = FILE_PATH_LITERAL(".so");
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#elif defined(OS_WIN)
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const base::FilePath::StringType kDlExtension = FILE_PATH_LITERAL(".dll");
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#endif
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base::FilePath module_path = Paths::Executable().DirName().Append(
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FILE_PATH_LITERAL("crashpad_snapshot_test_module") + kDlExtension);
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#if defined(OS_MACOSX)
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ScopedDlHandle dl_handle(
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dlopen(module_path.value().c_str(), RTLD_LAZY | RTLD_LOCAL));
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ASSERT_TRUE(dl_handle.valid()) << "dlopen " << module_path.value() << ": "
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<< dlerror();
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#elif defined(OS_WIN)
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ScopedDlHandle dl_handle(LoadLibrary(module_path.value().c_str()));
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ASSERT_TRUE(dl_handle.valid())
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<< "LoadLibrary " << base::UTF16ToUTF8(module_path.value()) << ": "
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<< ErrorMessage();
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#else
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#error Port.
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#endif // OS_MACOSX
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// Get the function pointer from the module. This wraps GetCrashpadInfo(), but
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// because it runs in the module, it returns the remote module’s CrashpadInfo
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// structure.
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CrashpadInfo* (*TestModule_GetCrashpadInfo)() =
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dl_handle.LookUpSymbol<CrashpadInfo* (*)()>("TestModule_GetCrashpadInfo");
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ASSERT_TRUE(TestModule_GetCrashpadInfo);
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auto options = SelfProcessSnapshotAndGetCrashpadOptions();
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// Make sure that the initial state has all values unset.
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EXPECT_EQ(TriState::kUnset, options.crashpad_handler_behavior);
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EXPECT_EQ(TriState::kUnset, options.system_crash_reporter_forwarding);
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EXPECT_EQ(TriState::kUnset, options.gather_indirectly_referenced_memory);
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// Get both CrashpadInfo structures.
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CrashpadInfo* local_crashpad_info = CrashpadInfo::GetCrashpadInfo();
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ASSERT_TRUE(local_crashpad_info);
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CrashpadInfo* remote_crashpad_info = TestModule_GetCrashpadInfo();
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ASSERT_TRUE(remote_crashpad_info);
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{
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ScopedUnsetCrashpadInfoOptions unset_local(local_crashpad_info);
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ScopedUnsetCrashpadInfoOptions unset_remote(remote_crashpad_info);
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// When only one module sets a value, it applies to the entire process.
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remote_crashpad_info->set_crashpad_handler_behavior(TriState::kEnabled);
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options = SelfProcessSnapshotAndGetCrashpadOptions();
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EXPECT_EQ(TriState::kEnabled, options.crashpad_handler_behavior);
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EXPECT_EQ(TriState::kUnset, options.system_crash_reporter_forwarding);
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EXPECT_EQ(TriState::kUnset, options.gather_indirectly_referenced_memory);
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// When more than one module sets a value, the first one in the module list
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// applies to the process. The local module should appear before the remote
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// module, because the local module loaded the remote module.
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local_crashpad_info->set_crashpad_handler_behavior(TriState::kDisabled);
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options = SelfProcessSnapshotAndGetCrashpadOptions();
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EXPECT_EQ(TriState::kDisabled, options.crashpad_handler_behavior);
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EXPECT_EQ(TriState::kUnset, options.system_crash_reporter_forwarding);
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EXPECT_EQ(TriState::kUnset, options.gather_indirectly_referenced_memory);
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}
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{
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ScopedUnsetCrashpadInfoOptions unset_local(local_crashpad_info);
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ScopedUnsetCrashpadInfoOptions unset_remote(remote_crashpad_info);
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// When only one module sets a value, it applies to the entire process.
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remote_crashpad_info->set_system_crash_reporter_forwarding(
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TriState::kDisabled);
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options = SelfProcessSnapshotAndGetCrashpadOptions();
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EXPECT_EQ(TriState::kUnset, options.crashpad_handler_behavior);
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EXPECT_EQ(TriState::kDisabled, options.system_crash_reporter_forwarding);
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EXPECT_EQ(TriState::kUnset, options.gather_indirectly_referenced_memory);
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// When more than one module sets a value, the first one in the module list
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// applies to the process. The local module should appear before the remote
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// module, because the local module loaded the remote module.
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local_crashpad_info->set_system_crash_reporter_forwarding(
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TriState::kEnabled);
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options = SelfProcessSnapshotAndGetCrashpadOptions();
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EXPECT_EQ(TriState::kUnset, options.crashpad_handler_behavior);
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EXPECT_EQ(TriState::kEnabled, options.system_crash_reporter_forwarding);
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EXPECT_EQ(TriState::kUnset, options.gather_indirectly_referenced_memory);
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}
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}
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} // namespace
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} // namespace test
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} // namespace crashpad
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