mirror of
https://github.com/chromium/crashpad.git
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f9d160ffc6
This reverts commit 4717300fa4cefadeabef64346ba65aa8759d43b8. Reason for revert: When used in with the size-testing fake CrashpadInfo's, this can overwrite past the end of them. Original change's description: > Reset CrashpadInfo after CrashpadInfoReader tests > > Not resetting these was causing CrashpadInfoClientOptions tests to fail > on Fuchsia, because dlclose() [legally] doesn't do anything, so > modifying the current binaries CrashpadInfo caused the expected values > from child .sos to be ignored. That could be worked around in that test > too, but it's probably better to clean up the global state in this test > anyway. > > Bug: crashpad:196 > Change-Id: Ia8119ac7c554bea81e8373e2547faf192c629122 > Reviewed-on: https://chromium-review.googlesource.com/923178 > Commit-Queue: Scott Graham <scottmg@chromium.org> > Reviewed-by: Joshua Peraza <jperaza@chromium.org> TBR=scottmg@chromium.org,jperaza@chromium.org Change-Id: Ia6d8db1ba24c82bb9346210ac8b66d80f42a6925 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: crashpad:196 Reviewed-on: https://chromium-review.googlesource.com/923541 Reviewed-by: Scott Graham <scottmg@chromium.org> Commit-Queue: Scott Graham <scottmg@chromium.org>
337 lines
13 KiB
C++
337 lines
13 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/auto_reset.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/scoped_module_handle.h"
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#include "test/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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#elif defined(OS_FUCHSIA)
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#include <zircon/process.h>
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#include "snapshot/fuchsia/process_snapshot_fuchsia.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(CrashpadInfoClientOptions::TriStateFromCrashpadInfo(0),
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TriState::kUnset);
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EXPECT_EQ(CrashpadInfoClientOptions::TriStateFromCrashpadInfo(1),
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TriState::kEnabled);
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EXPECT_EQ(CrashpadInfoClientOptions::TriStateFromCrashpadInfo(2),
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TriState::kDisabled);
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// These will produce log messages but should result in kUnset being returned.
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EXPECT_EQ(CrashpadInfoClientOptions::TriStateFromCrashpadInfo(3),
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TriState::kUnset);
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EXPECT_EQ(CrashpadInfoClientOptions::TriStateFromCrashpadInfo(4),
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TriState::kUnset);
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EXPECT_EQ(CrashpadInfoClientOptions::TriStateFromCrashpadInfo(0xff),
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TriState::kUnset);
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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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#elif defined(OS_FUCHSIA)
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ProcessSnapshotFuchsia process_snapshot;
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EXPECT_TRUE(process_snapshot.Initialize(zx_process_self()));
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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(options.crashpad_handler_behavior, TriState::kUnset);
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EXPECT_EQ(options.system_crash_reporter_forwarding, TriState::kUnset);
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EXPECT_EQ(options.gather_indirectly_referenced_memory, TriState::kUnset);
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EXPECT_EQ(options.indirectly_referenced_memory_cap, 0u);
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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(options.crashpad_handler_behavior, TriState::kEnabled);
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EXPECT_EQ(options.system_crash_reporter_forwarding, TriState::kUnset);
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EXPECT_EQ(options.gather_indirectly_referenced_memory, TriState::kUnset);
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EXPECT_EQ(options.indirectly_referenced_memory_cap, 0u);
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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(options.crashpad_handler_behavior, TriState::kUnset);
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EXPECT_EQ(options.system_crash_reporter_forwarding, TriState::kDisabled);
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EXPECT_EQ(options.gather_indirectly_referenced_memory, TriState::kUnset);
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EXPECT_EQ(options.indirectly_referenced_memory_cap, 0u);
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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(options.crashpad_handler_behavior, TriState::kUnset);
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EXPECT_EQ(options.system_crash_reporter_forwarding, TriState::kUnset);
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EXPECT_EQ(options.gather_indirectly_referenced_memory, TriState::kEnabled);
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EXPECT_EQ(options.indirectly_referenced_memory_cap, 1234u);
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}
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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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base::FilePath module_path =
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TestPaths::BuildArtifact(FILE_PATH_LITERAL("snapshot"),
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FILE_PATH_LITERAL("module"),
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TestPaths::FileType::kLoadableModule);
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#if defined(OS_POSIX)
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ScopedModuleHandle module(
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dlopen(module_path.value().c_str(), RTLD_LAZY | RTLD_LOCAL));
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ASSERT_TRUE(module.valid()) << "dlopen " << module_path.value() << ": "
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<< dlerror();
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#elif defined(OS_WIN)
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ScopedModuleHandle module(LoadLibrary(module_path.value().c_str()));
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ASSERT_TRUE(module.valid()) << "LoadLibrary "
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<< 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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module.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(options.crashpad_handler_behavior, TriState::kUnset);
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EXPECT_EQ(options.system_crash_reporter_forwarding, TriState::kUnset);
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EXPECT_EQ(options.gather_indirectly_referenced_memory, TriState::kUnset);
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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(options.crashpad_handler_behavior, TriState::kEnabled);
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EXPECT_EQ(options.system_crash_reporter_forwarding, TriState::kUnset);
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EXPECT_EQ(options.gather_indirectly_referenced_memory, TriState::kUnset);
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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(options.crashpad_handler_behavior, TriState::kDisabled);
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EXPECT_EQ(options.system_crash_reporter_forwarding, TriState::kUnset);
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EXPECT_EQ(options.gather_indirectly_referenced_memory, TriState::kUnset);
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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(options.crashpad_handler_behavior, TriState::kUnset);
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EXPECT_EQ(options.system_crash_reporter_forwarding, TriState::kDisabled);
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EXPECT_EQ(options.gather_indirectly_referenced_memory, TriState::kUnset);
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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(options.crashpad_handler_behavior, TriState::kUnset);
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EXPECT_EQ(options.system_crash_reporter_forwarding, TriState::kEnabled);
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EXPECT_EQ(options.gather_indirectly_referenced_memory, TriState::kUnset);
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}
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}
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class CrashpadInfoSizes_ClientOptions
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: public testing::TestWithParam<base::FilePath::StringType> {};
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TEST_P(CrashpadInfoSizes_ClientOptions, DifferentlySizedStruct) {
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base::FilePath::StringType artifact(FILE_PATH_LITERAL("module_"));
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artifact += GetParam();
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// Open the module, which has a CrashpadInfo-like structure that’s smaller or
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// larger than the current version’s CrashpadInfo structure defined in the
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// client library.
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base::FilePath module_path =
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TestPaths::BuildArtifact(FILE_PATH_LITERAL("snapshot"),
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artifact,
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TestPaths::FileType::kLoadableModule);
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#if defined(OS_POSIX)
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ScopedModuleHandle module(
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dlopen(module_path.value().c_str(), RTLD_LAZY | RTLD_LOCAL));
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ASSERT_TRUE(module.valid())
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<< "dlopen " << module_path.value() << ": " << dlerror();
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#elif defined(OS_WIN)
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ScopedModuleHandle module(LoadLibrary(module_path.value().c_str()));
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ASSERT_TRUE(module.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.
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CrashpadInfo* (*TestModule_GetCrashpadInfo)() =
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module.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(options.crashpad_handler_behavior, TriState::kUnset);
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EXPECT_EQ(options.system_crash_reporter_forwarding, TriState::kUnset);
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EXPECT_EQ(options.gather_indirectly_referenced_memory, TriState::kUnset);
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// Get the remote CrashpadInfo structure.
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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_remote(remote_crashpad_info);
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// Make sure that a change in the remote structure can be read back out,
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// even though it’s a different size.
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remote_crashpad_info->set_crashpad_handler_behavior(TriState::kEnabled);
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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(options.crashpad_handler_behavior, TriState::kEnabled);
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EXPECT_EQ(options.system_crash_reporter_forwarding, TriState::kDisabled);
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EXPECT_EQ(options.gather_indirectly_referenced_memory, TriState::kUnset);
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}
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{
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ScopedUnsetCrashpadInfoOptions unset_remote(remote_crashpad_info);
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// Make sure that the portion of the remote structure lying beyond its
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// declared size reads as zero.
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// 4 = offsetof(CrashpadInfo, size_), but it’s private.
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uint32_t* size = reinterpret_cast<uint32_t*>(
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reinterpret_cast<char*>(remote_crashpad_info) + 4);
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// 21 = offsetof(CrashpadInfo, system_crash_reporter_forwarding_, but it’s
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// private.
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base::AutoReset<uint32_t> reset_size(size, 21);
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// system_crash_reporter_forwarding_ is now beyond the struct’s declared
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// size. Storage has actually been allocated for it, so it’s safe to set
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// here.
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remote_crashpad_info->set_crashpad_handler_behavior(TriState::kEnabled);
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remote_crashpad_info->set_system_crash_reporter_forwarding(
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TriState::kDisabled);
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// Since system_crash_reporter_forwarding_ is beyond the struct’s declared
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// size, it should read as 0 (TriState::kUnset), even though it was set to
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// a different value above.
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options = SelfProcessSnapshotAndGetCrashpadOptions();
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EXPECT_EQ(options.crashpad_handler_behavior, TriState::kEnabled);
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EXPECT_EQ(options.system_crash_reporter_forwarding, TriState::kUnset);
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EXPECT_EQ(options.gather_indirectly_referenced_memory, TriState::kUnset);
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}
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}
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INSTANTIATE_TEST_CASE_P(CrashpadInfoSizes_ClientOptions,
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CrashpadInfoSizes_ClientOptions,
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testing::Values(FILE_PATH_LITERAL("small"),
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FILE_PATH_LITERAL("large")));
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} // namespace
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} // namespace test
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} // namespace crashpad
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