mirror of
https://github.com/chromium/crashpad.git
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c11d49db88
ARM64 supports storing pointer authentication codes in the upper bits of a pointer. This mask can be used by LLDB to mimic ptrauth_strip and strip the pointer authentication codes. To recover an address from pointer with an authentication code, `AND` this mask with the pointer. If the platform does not support pointer authentication, or the range of valid addressees for a pointer was unaccessible, this field will be 0 and should be ignored. Change-Id: Ie5cef90802dd1e892d456195ab8874223eac6a1b Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2773358 Commit-Queue: Justin Cohen <justincohen@chromium.org> Reviewed-by: Mark Mentovai <mark@chromium.org>
371 lines
14 KiB
C++
371 lines
14 KiB
C++
// Copyright 2014 The Crashpad Authors
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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 "minidump/minidump_crashpad_info_writer.h"
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#include <windows.h>
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#include <dbghelp.h>
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#include <map>
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#include <string>
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#include <utility>
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#include "gtest/gtest.h"
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#include "minidump/minidump_extensions.h"
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#include "minidump/minidump_file_writer.h"
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#include "minidump/minidump_module_crashpad_info_writer.h"
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#include "minidump/minidump_simple_string_dictionary_writer.h"
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#include "minidump/test/minidump_file_writer_test_util.h"
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#include "minidump/test/minidump_string_writer_test_util.h"
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#include "minidump/test/minidump_writable_test_util.h"
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#include "snapshot/test/test_module_snapshot.h"
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#include "snapshot/test/test_process_snapshot.h"
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#include "util/file/string_file.h"
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namespace crashpad {
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namespace test {
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namespace {
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void GetCrashpadInfoStream(
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const std::string& file_contents,
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const MinidumpCrashpadInfo** crashpad_info,
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const MinidumpSimpleStringDictionary** simple_annotations,
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const MinidumpModuleCrashpadInfoList** module_list) {
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const MINIDUMP_DIRECTORY* directory;
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const MINIDUMP_HEADER* header =
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MinidumpHeaderAtStart(file_contents, &directory);
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ASSERT_NO_FATAL_FAILURE(VerifyMinidumpHeader(header, 1, 0));
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ASSERT_TRUE(directory);
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ASSERT_EQ(directory[0].StreamType, kMinidumpStreamTypeCrashpadInfo);
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*crashpad_info = MinidumpWritableAtLocationDescriptor<MinidumpCrashpadInfo>(
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file_contents, directory[0].Location);
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ASSERT_TRUE(*crashpad_info);
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*simple_annotations =
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MinidumpWritableAtLocationDescriptor<MinidumpSimpleStringDictionary>(
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file_contents, (*crashpad_info)->simple_annotations);
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*module_list =
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MinidumpWritableAtLocationDescriptor<MinidumpModuleCrashpadInfoList>(
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file_contents, (*crashpad_info)->module_list);
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}
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TEST(MinidumpCrashpadInfoWriter, Empty) {
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MinidumpFileWriter minidump_file_writer;
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auto crashpad_info_writer = std::make_unique<MinidumpCrashpadInfoWriter>();
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EXPECT_FALSE(crashpad_info_writer->IsUseful());
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ASSERT_TRUE(minidump_file_writer.AddStream(std::move(crashpad_info_writer)));
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StringFile string_file;
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ASSERT_TRUE(minidump_file_writer.WriteEverything(&string_file));
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const MinidumpCrashpadInfo* crashpad_info = nullptr;
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const MinidumpSimpleStringDictionary* simple_annotations = nullptr;
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const MinidumpModuleCrashpadInfoList* module_list = nullptr;
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ASSERT_NO_FATAL_FAILURE(GetCrashpadInfoStream(
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string_file.string(), &crashpad_info, &simple_annotations, &module_list));
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EXPECT_EQ(crashpad_info->version, MinidumpCrashpadInfo::kVersion);
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EXPECT_EQ(crashpad_info->report_id, UUID());
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EXPECT_EQ(crashpad_info->client_id, UUID());
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EXPECT_FALSE(simple_annotations);
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EXPECT_FALSE(module_list);
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}
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TEST(MinidumpCrashpadInfoWriter, ReportAndClientID) {
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MinidumpFileWriter minidump_file_writer;
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auto crashpad_info_writer = std::make_unique<MinidumpCrashpadInfoWriter>();
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UUID report_id;
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ASSERT_TRUE(
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report_id.InitializeFromString("01234567-89ab-cdef-0123-456789abcdef"));
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crashpad_info_writer->SetReportID(report_id);
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UUID client_id;
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ASSERT_TRUE(
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client_id.InitializeFromString("00112233-4455-6677-8899-aabbccddeeff"));
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crashpad_info_writer->SetClientID(client_id);
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EXPECT_TRUE(crashpad_info_writer->IsUseful());
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ASSERT_TRUE(minidump_file_writer.AddStream(std::move(crashpad_info_writer)));
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StringFile string_file;
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ASSERT_TRUE(minidump_file_writer.WriteEverything(&string_file));
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const MinidumpCrashpadInfo* crashpad_info = nullptr;
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const MinidumpSimpleStringDictionary* simple_annotations = nullptr;
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const MinidumpModuleCrashpadInfoList* module_list = nullptr;
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ASSERT_NO_FATAL_FAILURE(GetCrashpadInfoStream(
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string_file.string(), &crashpad_info, &simple_annotations, &module_list));
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EXPECT_EQ(crashpad_info->version, MinidumpCrashpadInfo::kVersion);
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EXPECT_EQ(crashpad_info->report_id, report_id);
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EXPECT_EQ(crashpad_info->client_id, client_id);
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EXPECT_FALSE(simple_annotations);
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EXPECT_FALSE(module_list);
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}
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TEST(MinidumpCrashpadInfoWriter, AddressMask) {
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MinidumpFileWriter minidump_file_writer;
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auto crashpad_info_writer = std::make_unique<MinidumpCrashpadInfoWriter>();
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constexpr uint64_t mask = 0xFFFFFF8000000000;
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crashpad_info_writer->SetAddressMask(mask);
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ASSERT_TRUE(minidump_file_writer.AddStream(std::move(crashpad_info_writer)));
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StringFile string_file;
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ASSERT_TRUE(minidump_file_writer.WriteEverything(&string_file));
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const MinidumpCrashpadInfo* crashpad_info = nullptr;
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const MinidumpSimpleStringDictionary* simple_annotations = nullptr;
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const MinidumpModuleCrashpadInfoList* module_list = nullptr;
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ASSERT_NO_FATAL_FAILURE(GetCrashpadInfoStream(
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string_file.string(), &crashpad_info, &simple_annotations, &module_list));
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UUID empty_report_id;
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ASSERT_TRUE(empty_report_id.InitializeFromString(
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"00000000-0000-0000-0000-000000000000"));
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UUID empty_client_id;
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ASSERT_TRUE(empty_client_id.InitializeFromString(
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"00000000-0000-0000-0000-000000000000"));
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EXPECT_EQ(crashpad_info->version, MinidumpCrashpadInfo::kVersion);
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EXPECT_EQ(crashpad_info->address_mask, mask);
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EXPECT_EQ(crashpad_info->report_id, empty_report_id);
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EXPECT_EQ(crashpad_info->client_id, empty_client_id);
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EXPECT_FALSE(simple_annotations);
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EXPECT_FALSE(module_list);
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}
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TEST(MinidumpCrashpadInfoWriter, EmptyAddressMask) {
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MinidumpFileWriter minidump_file_writer;
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auto crashpad_info_writer = std::make_unique<MinidumpCrashpadInfoWriter>();
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ASSERT_TRUE(minidump_file_writer.AddStream(std::move(crashpad_info_writer)));
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StringFile string_file;
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ASSERT_TRUE(minidump_file_writer.WriteEverything(&string_file));
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const MinidumpCrashpadInfo* crashpad_info = nullptr;
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const MinidumpSimpleStringDictionary* simple_annotations = nullptr;
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const MinidumpModuleCrashpadInfoList* module_list = nullptr;
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ASSERT_NO_FATAL_FAILURE(GetCrashpadInfoStream(
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string_file.string(), &crashpad_info, &simple_annotations, &module_list));
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EXPECT_EQ(crashpad_info->address_mask, 0UL);
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}
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TEST(MinidumpCrashpadInfoWriter, SimpleAnnotations) {
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MinidumpFileWriter minidump_file_writer;
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auto crashpad_info_writer = std::make_unique<MinidumpCrashpadInfoWriter>();
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static constexpr char kKey[] =
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"a thing that provides a means of gaining access to or understanding "
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"something";
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static constexpr char kValue[] =
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"the numerical amount denoted by an algebraic term; a magnitude, "
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"quantity, or number";
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auto simple_string_dictionary_writer =
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std::make_unique<MinidumpSimpleStringDictionaryWriter>();
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auto simple_string_dictionary_entry_writer =
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std::make_unique<MinidumpSimpleStringDictionaryEntryWriter>();
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simple_string_dictionary_entry_writer->SetKeyValue(kKey, kValue);
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simple_string_dictionary_writer->AddEntry(
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std::move(simple_string_dictionary_entry_writer));
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crashpad_info_writer->SetSimpleAnnotations(
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std::move(simple_string_dictionary_writer));
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EXPECT_TRUE(crashpad_info_writer->IsUseful());
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ASSERT_TRUE(minidump_file_writer.AddStream(std::move(crashpad_info_writer)));
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StringFile string_file;
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ASSERT_TRUE(minidump_file_writer.WriteEverything(&string_file));
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const MinidumpCrashpadInfo* crashpad_info = nullptr;
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const MinidumpSimpleStringDictionary* simple_annotations = nullptr;
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const MinidumpModuleCrashpadInfoList* module_list = nullptr;
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ASSERT_NO_FATAL_FAILURE(GetCrashpadInfoStream(
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string_file.string(), &crashpad_info, &simple_annotations, &module_list));
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EXPECT_EQ(crashpad_info->version, MinidumpCrashpadInfo::kVersion);
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EXPECT_FALSE(module_list);
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ASSERT_TRUE(simple_annotations);
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ASSERT_EQ(simple_annotations->count, 1u);
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EXPECT_EQ(MinidumpUTF8StringAtRVAAsString(string_file.string(),
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simple_annotations->entries[0].key),
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kKey);
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EXPECT_EQ(MinidumpUTF8StringAtRVAAsString(
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string_file.string(), simple_annotations->entries[0].value),
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kValue);
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}
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TEST(MinidumpCrashpadInfoWriter, CrashpadModuleList) {
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constexpr uint32_t kMinidumpModuleListIndex = 3;
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MinidumpFileWriter minidump_file_writer;
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auto crashpad_info_writer = std::make_unique<MinidumpCrashpadInfoWriter>();
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auto module_list_writer =
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std::make_unique<MinidumpModuleCrashpadInfoListWriter>();
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auto module_writer = std::make_unique<MinidumpModuleCrashpadInfoWriter>();
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module_list_writer->AddModule(std::move(module_writer),
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kMinidumpModuleListIndex);
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crashpad_info_writer->SetModuleList(std::move(module_list_writer));
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EXPECT_TRUE(crashpad_info_writer->IsUseful());
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ASSERT_TRUE(minidump_file_writer.AddStream(std::move(crashpad_info_writer)));
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StringFile string_file;
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ASSERT_TRUE(minidump_file_writer.WriteEverything(&string_file));
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const MinidumpCrashpadInfo* crashpad_info = nullptr;
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const MinidumpSimpleStringDictionary* simple_annotations = nullptr;
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const MinidumpModuleCrashpadInfoList* module_list = nullptr;
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ASSERT_NO_FATAL_FAILURE(GetCrashpadInfoStream(
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string_file.string(), &crashpad_info, &simple_annotations, &module_list));
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EXPECT_EQ(crashpad_info->version, MinidumpCrashpadInfo::kVersion);
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EXPECT_FALSE(simple_annotations);
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ASSERT_TRUE(module_list);
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ASSERT_EQ(module_list->count, 1u);
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EXPECT_EQ(module_list->modules[0].minidump_module_list_index,
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kMinidumpModuleListIndex);
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const MinidumpModuleCrashpadInfo* module =
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MinidumpWritableAtLocationDescriptor<MinidumpModuleCrashpadInfo>(
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string_file.string(), module_list->modules[0].location);
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ASSERT_TRUE(module);
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EXPECT_EQ(module->version, MinidumpModuleCrashpadInfo::kVersion);
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EXPECT_EQ(module->list_annotations.DataSize, 0u);
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EXPECT_EQ(module->list_annotations.Rva, 0u);
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EXPECT_EQ(module->simple_annotations.DataSize, 0u);
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EXPECT_EQ(module->simple_annotations.Rva, 0u);
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}
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TEST(MinidumpCrashpadInfoWriter, InitializeFromSnapshot) {
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UUID report_id;
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ASSERT_TRUE(
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report_id.InitializeFromString("fedcba98-7654-3210-fedc-ba9876543210"));
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UUID client_id;
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ASSERT_TRUE(
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client_id.InitializeFromString("fedcba98-7654-3210-0123-456789abcdef"));
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static constexpr char kKey[] = "version";
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static constexpr char kValue[] = "40.0.2214.111";
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static constexpr char kEntry[] = "This is a simple annotation in a list.";
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// Test with a useless module, one that doesn’t carry anything that would
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// require MinidumpCrashpadInfo or any child object.
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auto process_snapshot = std::make_unique<TestProcessSnapshot>();
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auto module_snapshot = std::make_unique<TestModuleSnapshot>();
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process_snapshot->AddModule(std::move(module_snapshot));
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auto info_writer = std::make_unique<MinidumpCrashpadInfoWriter>();
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info_writer->InitializeFromSnapshot(process_snapshot.get());
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EXPECT_FALSE(info_writer->IsUseful());
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// Try again with a useful module.
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process_snapshot.reset(new TestProcessSnapshot());
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process_snapshot->SetReportID(report_id);
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process_snapshot->SetClientID(client_id);
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std::map<std::string, std::string> annotations_simple_map;
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annotations_simple_map[kKey] = kValue;
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process_snapshot->SetAnnotationsSimpleMap(annotations_simple_map);
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module_snapshot.reset(new TestModuleSnapshot());
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std::vector<std::string> annotations_list(1, std::string(kEntry));
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module_snapshot->SetAnnotationsVector(annotations_list);
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process_snapshot->AddModule(std::move(module_snapshot));
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info_writer.reset(new MinidumpCrashpadInfoWriter());
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info_writer->InitializeFromSnapshot(process_snapshot.get());
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EXPECT_TRUE(info_writer->IsUseful());
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MinidumpFileWriter minidump_file_writer;
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ASSERT_TRUE(minidump_file_writer.AddStream(std::move(info_writer)));
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StringFile string_file;
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ASSERT_TRUE(minidump_file_writer.WriteEverything(&string_file));
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const MinidumpCrashpadInfo* info = nullptr;
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const MinidumpSimpleStringDictionary* simple_annotations;
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const MinidumpModuleCrashpadInfoList* module_list;
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ASSERT_NO_FATAL_FAILURE(GetCrashpadInfoStream(
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string_file.string(), &info, &simple_annotations, &module_list));
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EXPECT_EQ(info->version, MinidumpCrashpadInfo::kVersion);
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EXPECT_EQ(info->report_id, report_id);
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EXPECT_EQ(info->client_id, client_id);
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ASSERT_TRUE(simple_annotations);
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ASSERT_EQ(simple_annotations->count, 1u);
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EXPECT_EQ(MinidumpUTF8StringAtRVAAsString(string_file.string(),
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simple_annotations->entries[0].key),
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kKey);
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EXPECT_EQ(MinidumpUTF8StringAtRVAAsString(
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string_file.string(), simple_annotations->entries[0].value),
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kValue);
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ASSERT_TRUE(module_list);
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ASSERT_EQ(module_list->count, 1u);
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EXPECT_EQ(module_list->modules[0].minidump_module_list_index, 0u);
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const MinidumpModuleCrashpadInfo* module =
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MinidumpWritableAtLocationDescriptor<MinidumpModuleCrashpadInfo>(
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string_file.string(), module_list->modules[0].location);
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ASSERT_TRUE(module);
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EXPECT_EQ(module->version, MinidumpModuleCrashpadInfo::kVersion);
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const MinidumpRVAList* list_annotations =
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MinidumpWritableAtLocationDescriptor<MinidumpRVAList>(
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string_file.string(), module->list_annotations);
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ASSERT_TRUE(list_annotations);
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ASSERT_EQ(list_annotations->count, 1u);
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EXPECT_EQ(MinidumpUTF8StringAtRVAAsString(string_file.string(),
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list_annotations->children[0]),
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kEntry);
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const MinidumpSimpleStringDictionary* module_simple_annotations =
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MinidumpWritableAtLocationDescriptor<MinidumpSimpleStringDictionary>(
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string_file.string(), module->simple_annotations);
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EXPECT_FALSE(module_simple_annotations);
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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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