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llvm-project/lldb/unittests/Process/minidump/MinidumpParserTest.cpp

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//===-- MinidumpTypesTest.cpp ---------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "Plugins/Process/minidump/MinidumpParser.h"
#include "Plugins/Process/minidump/MinidumpTypes.h"
#include "Plugins/Process/minidump/RegisterContextMinidump_x86_32.h"
#include "Plugins/Process/minidump/RegisterContextMinidump_x86_64.h"
#include "TestingSupport/SubsystemRAII.h"
#include "TestingSupport/TestUtilities.h"
#include "lldb/Host/FileSystem.h"
#include "lldb/Target/MemoryRegionInfo.h"
#include "lldb/Utility/ArchSpec.h"
#include "lldb/Utility/DataBufferHeap.h"
#include "lldb/Utility/DataExtractor.h"
#include "lldb/Utility/FileSpec.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/Optional.h"
#include "llvm/ObjectYAML/yaml2obj.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/YAMLTraits.h"
#include "llvm/Testing/Support/Error.h"
#include "gtest/gtest.h"
// C includes
// C++ includes
#include <memory>
using namespace lldb_private;
using namespace minidump;
class MinidumpParserTest : public testing::Test {
public:
SubsystemRAII<FileSystem> subsystems;
void SetUpData(const char *minidump_filename) {
std::string filename = GetInputFilePath(minidump_filename);
auto BufferPtr = FileSystem::Instance().CreateDataBuffer(filename, -1, 0);
ASSERT_NE(BufferPtr, nullptr);
llvm::Expected<MinidumpParser> expected_parser =
MinidumpParser::Create(BufferPtr);
ASSERT_THAT_EXPECTED(expected_parser, llvm::Succeeded());
parser = std::move(*expected_parser);
ASSERT_GT(parser->GetData().size(), 0UL);
}
llvm::Error SetUpFromYaml(llvm::StringRef yaml) {
std::string data;
llvm::raw_string_ostream os(data);
llvm::yaml::Input YIn(yaml);
if (!llvm::yaml::convertYAML(YIn, os, [](const llvm::Twine &Msg) {}))
return llvm::createStringError(llvm::inconvertibleErrorCode(),
"convertYAML() failed");
os.flush();
auto data_buffer_sp =
std::make_shared<DataBufferHeap>(data.data(), data.size());
auto expected_parser = MinidumpParser::Create(std::move(data_buffer_sp));
if (!expected_parser)
return expected_parser.takeError();
parser = std::move(*expected_parser);
return llvm::Error::success();
}
llvm::Optional<MinidumpParser> parser;
};
TEST_F(MinidumpParserTest, InvalidMinidump) {
std::string duplicate_streams;
llvm::raw_string_ostream os(duplicate_streams);
llvm::yaml::Input YIn(R"(
--- !minidump
Streams:
- Type: LinuxAuxv
Content: DEADBEEFBAADF00D
- Type: LinuxAuxv
Content: DEADBEEFBAADF00D
)");
ASSERT_TRUE(llvm::yaml::convertYAML(YIn, os, [](const llvm::Twine &Msg){}));
os.flush();
auto data_buffer_sp = std::make_shared<DataBufferHeap>(
duplicate_streams.data(), duplicate_streams.size());
ASSERT_THAT_EXPECTED(MinidumpParser::Create(data_buffer_sp), llvm::Failed());
}
TEST_F(MinidumpParserTest, GetThreadsAndGetThreadContext) {
ASSERT_THAT_ERROR(SetUpFromYaml(R"(
--- !minidump
Streams:
- Type: ThreadList
Threads:
- Thread Id: 0x00003E81
Stack:
Start of Memory Range: 0x00007FFCEB34A000
Content: C84D04BCE97F00
Context: 00000000000000
...
)"),
llvm::Succeeded());
llvm::ArrayRef<minidump::Thread> thread_list;
thread_list = parser->GetThreads();
ASSERT_EQ(1UL, thread_list.size());
const minidump::Thread &thread = thread_list[0];
EXPECT_EQ(0x3e81u, thread.ThreadId);
llvm::ArrayRef<uint8_t> context = parser->GetThreadContext(thread);
EXPECT_EQ(7u, context.size());
}
TEST_F(MinidumpParserTest, GetArchitecture) {
ASSERT_THAT_ERROR(SetUpFromYaml(R"(
--- !minidump
Streams:
- Type: SystemInfo
Processor Arch: AMD64
Processor Level: 6
Processor Revision: 16130
Number of Processors: 1
Platform ID: Linux
CPU:
Vendor ID: GenuineIntel
Version Info: 0x00000000
Feature Info: 0x00000000
...
)"),
llvm::Succeeded());
ASSERT_EQ(llvm::Triple::ArchType::x86_64,
parser->GetArchitecture().GetMachine());
ASSERT_EQ(llvm::Triple::OSType::Linux,
parser->GetArchitecture().GetTriple().getOS());
}
TEST_F(MinidumpParserTest, GetMiscInfo_no_stream) {
// Test that GetMiscInfo returns nullptr when the minidump does not contain
// this stream.
ASSERT_THAT_ERROR(SetUpFromYaml(R"(
--- !minidump
Streams:
...
)"),
llvm::Succeeded());
EXPECT_EQ(nullptr, parser->GetMiscInfo());
}
TEST_F(MinidumpParserTest, GetLinuxProcStatus) {
ASSERT_THAT_ERROR(SetUpFromYaml(R"(
--- !minidump
Streams:
- Type: SystemInfo
Processor Arch: AMD64
Processor Level: 6
Processor Revision: 16130
Number of Processors: 1
Platform ID: Linux
CSD Version: 'Linux 3.13.0-91-generic'
CPU:
Vendor ID: GenuineIntel
Version Info: 0x00000000
Feature Info: 0x00000000
- Type: LinuxProcStatus
Text: |
Name: a.out
State: t (tracing stop)
Tgid: 16001
Ngid: 0
Pid: 16001
PPid: 13243
TracerPid: 16002
Uid: 404696 404696 404696 404696
Gid: 5762 5762 5762 5762
...
)"),
llvm::Succeeded());
llvm::Optional<LinuxProcStatus> proc_status = parser->GetLinuxProcStatus();
ASSERT_TRUE(proc_status.hasValue());
lldb::pid_t pid = proc_status->GetPid();
ASSERT_EQ(16001UL, pid);
}
TEST_F(MinidumpParserTest, GetPid) {
ASSERT_THAT_ERROR(SetUpFromYaml(R"(
--- !minidump
Streams:
- Type: SystemInfo
Processor Arch: AMD64
Processor Level: 6
Processor Revision: 16130
Number of Processors: 1
Platform ID: Linux
CSD Version: 'Linux 3.13.0-91-generic'
CPU:
Vendor ID: GenuineIntel
Version Info: 0x00000000
Feature Info: 0x00000000
- Type: LinuxProcStatus
Text: |
Name: a.out
State: t (tracing stop)
Tgid: 16001
Ngid: 0
Pid: 16001
PPid: 13243
TracerPid: 16002
Uid: 404696 404696 404696 404696
Gid: 5762 5762 5762 5762
...
)"),
llvm::Succeeded());
llvm::Optional<lldb::pid_t> pid = parser->GetPid();
ASSERT_TRUE(pid.hasValue());
ASSERT_EQ(16001UL, pid.getValue());
}
TEST_F(MinidumpParserTest, GetFilteredModuleList) {
ASSERT_THAT_ERROR(SetUpFromYaml(R"(
--- !minidump
Streams:
- Type: ModuleList
Modules:
- Base of Image: 0x0000000000400000
Size of Image: 0x00001000
Module Name: '/tmp/test/linux-x86_64_not_crashed'
CodeView Record: 4C4570426CCF3F60FFA7CC4B86AE8FF44DB2576A68983611
- Base of Image: 0x0000000000600000
Size of Image: 0x00002000
Module Name: '/tmp/test/linux-x86_64_not_crashed'
CodeView Record: 4C4570426CCF3F60FFA7CC4B86AE8FF44DB2576A68983611
...
)"),
llvm::Succeeded());
llvm::ArrayRef<minidump::Module> modules = parser->GetModuleList();
std::vector<const minidump::Module *> filtered_modules =
parser->GetFilteredModuleList();
EXPECT_EQ(2u, modules.size());
ASSERT_EQ(1u, filtered_modules.size());
const minidump::Module &M = *filtered_modules[0];
EXPECT_THAT_EXPECTED(parser->GetMinidumpFile().getString(M.ModuleNameRVA),
llvm::HasValue("/tmp/test/linux-x86_64_not_crashed"));
}
TEST_F(MinidumpParserTest, GetExceptionStream) {
SetUpData("linux-x86_64.dmp");
const llvm::minidump::ExceptionStream *exception_stream =
parser->GetExceptionStream();
ASSERT_NE(nullptr, exception_stream);
ASSERT_EQ(11UL, exception_stream->ExceptionRecord.ExceptionCode);
}
void check_mem_range_exists(MinidumpParser &parser, const uint64_t range_start,
const uint64_t range_size) {
llvm::Optional<minidump::Range> range = parser.FindMemoryRange(range_start);
ASSERT_TRUE(range.hasValue()) << "There is no range containing this address";
EXPECT_EQ(range_start, range->start);
EXPECT_EQ(range_start + range_size, range->start + range->range_ref.size());
}
TEST_F(MinidumpParserTest, FindMemoryRange) {
ASSERT_THAT_ERROR(SetUpFromYaml(R"(
--- !minidump
Streams:
- Type: MemoryList
Memory Ranges:
- Start of Memory Range: 0x00007FFCEB34A000
Content: C84D04BCE9
- Start of Memory Range: 0x0000000000401D46
Content: 5421
...
)"),
llvm::Succeeded());
EXPECT_EQ(llvm::None, parser->FindMemoryRange(0x00));
EXPECT_EQ(llvm::None, parser->FindMemoryRange(0x2a));
EXPECT_EQ((minidump::Range{0x401d46, llvm::ArrayRef<uint8_t>{0x54, 0x21}}),
parser->FindMemoryRange(0x401d46));
EXPECT_EQ(llvm::None, parser->FindMemoryRange(0x401d46 + 2));
EXPECT_EQ(
(minidump::Range{0x7ffceb34a000,
llvm::ArrayRef<uint8_t>{0xc8, 0x4d, 0x04, 0xbc, 0xe9}}),
parser->FindMemoryRange(0x7ffceb34a000 + 2));
EXPECT_EQ(llvm::None, parser->FindMemoryRange(0x7ffceb34a000 + 5));
}
TEST_F(MinidumpParserTest, GetMemory) {
ASSERT_THAT_ERROR(SetUpFromYaml(R"(
--- !minidump
Streams:
- Type: MemoryList
Memory Ranges:
- Start of Memory Range: 0x00007FFCEB34A000
Content: C84D04BCE9
- Start of Memory Range: 0x0000000000401D46
Content: 5421
...
)"),
llvm::Succeeded());
EXPECT_EQ((llvm::ArrayRef<uint8_t>{0x54}), parser->GetMemory(0x401d46, 1));
EXPECT_EQ((llvm::ArrayRef<uint8_t>{0x54, 0x21}),
parser->GetMemory(0x401d46, 4));
EXPECT_EQ((llvm::ArrayRef<uint8_t>{0xc8, 0x4d, 0x04, 0xbc, 0xe9}),
parser->GetMemory(0x7ffceb34a000, 5));
EXPECT_EQ((llvm::ArrayRef<uint8_t>{0xc8, 0x4d, 0x04}),
parser->GetMemory(0x7ffceb34a000, 3));
EXPECT_EQ(llvm::ArrayRef<uint8_t>(), parser->GetMemory(0x500000, 512));
}
TEST_F(MinidumpParserTest, FindMemoryRangeWithFullMemoryMinidump) {
SetUpData("fizzbuzz_wow64.dmp");
// There are a lot of ranges in the file, just testing with some of them
EXPECT_FALSE(parser->FindMemoryRange(0x00).hasValue());
EXPECT_FALSE(parser->FindMemoryRange(0x2a).hasValue());
check_mem_range_exists(*parser, 0x10000, 65536); // first range
check_mem_range_exists(*parser, 0x40000, 4096);
EXPECT_FALSE(parser->FindMemoryRange(0x40000 + 4096).hasValue());
check_mem_range_exists(*parser, 0x77c12000, 8192);
check_mem_range_exists(*parser, 0x7ffe0000, 4096); // last range
EXPECT_FALSE(parser->FindMemoryRange(0x7ffe0000 + 4096).hasValue());
}
constexpr auto yes = MemoryRegionInfo::eYes;
constexpr auto no = MemoryRegionInfo::eNo;
constexpr auto unknown = MemoryRegionInfo::eDontKnow;
TEST_F(MinidumpParserTest, GetMemoryRegionInfo) {
ASSERT_THAT_ERROR(SetUpFromYaml(R"(
--- !minidump
Streams:
- Type: MemoryInfoList
Memory Ranges:
- Base Address: 0x0000000000000000
Allocation Protect: [ ]
Region Size: 0x0000000000010000
State: [ MEM_FREE ]
Protect: [ PAGE_NO_ACCESS ]
Type: [ ]
- Base Address: 0x0000000000010000
Allocation Protect: [ PAGE_READ_WRITE ]
Region Size: 0x0000000000021000
State: [ MEM_COMMIT ]
Type: [ MEM_MAPPED ]
- Base Address: 0x0000000000040000
Allocation Protect: [ PAGE_EXECUTE_WRITE_COPY ]
Region Size: 0x0000000000001000
State: [ MEM_COMMIT ]
Protect: [ PAGE_READ_ONLY ]
Type: [ MEM_IMAGE ]
- Base Address: 0x000000007FFE0000
Allocation Protect: [ PAGE_READ_ONLY ]
Region Size: 0x0000000000001000
State: [ MEM_COMMIT ]
Type: [ MEM_PRIVATE ]
- Base Address: 0x000000007FFE1000
Allocation Base: 0x000000007FFE0000
Allocation Protect: [ PAGE_READ_ONLY ]
Region Size: 0x000000000000F000
State: [ MEM_RESERVE ]
Protect: [ PAGE_NO_ACCESS ]
Type: [ MEM_PRIVATE ]
...
)"),
llvm::Succeeded());
EXPECT_THAT(
parser->BuildMemoryRegions(),
testing::Pair(
testing::ElementsAre(
MemoryRegionInfo({0x0, 0x10000}, no, no, no, no, ConstString(),
unknown, 0, unknown, unknown),
MemoryRegionInfo({0x10000, 0x21000}, yes, yes, no, yes,
ConstString(), unknown, 0, unknown, unknown),
MemoryRegionInfo({0x40000, 0x1000}, yes, no, no, yes,
ConstString(), unknown, 0, unknown, unknown),
MemoryRegionInfo({0x7ffe0000, 0x1000}, yes, no, no, yes,
ConstString(), unknown, 0, unknown, unknown),
MemoryRegionInfo({0x7ffe1000, 0xf000}, no, no, no, yes,
ConstString(), unknown, 0, unknown, unknown)),
true));
}
TEST_F(MinidumpParserTest, GetMemoryRegionInfoFromMemoryList) {
ASSERT_THAT_ERROR(SetUpFromYaml(R"(
--- !minidump
Streams:
- Type: MemoryList
Memory Ranges:
- Start of Memory Range: 0x0000000000001000
Content: '31313131313131313131313131313131'
- Start of Memory Range: 0x0000000000002000
Content: '3333333333333333333333333333333333333333333333333333333333333333'
...
)"),
llvm::Succeeded());
// Test we can get memory regions from the MINIDUMP_MEMORY_LIST stream when
// we don't have a MemoryInfoListStream.
EXPECT_THAT(
parser->BuildMemoryRegions(),
testing::Pair(
testing::ElementsAre(
MemoryRegionInfo({0x1000, 0x10}, yes, unknown, unknown, yes,
ConstString(), unknown, 0, unknown, unknown),
MemoryRegionInfo({0x2000, 0x20}, yes, unknown, unknown, yes,
ConstString(), unknown, 0, unknown, unknown)),
false));
}
TEST_F(MinidumpParserTest, GetMemoryRegionInfoFromMemory64List) {
SetUpData("regions-memlist64.dmp");
// Test we can get memory regions from the MINIDUMP_MEMORY64_LIST stream when
// we don't have a MemoryInfoListStream.
EXPECT_THAT(
parser->BuildMemoryRegions(),
testing::Pair(
testing::ElementsAre(
MemoryRegionInfo({0x1000, 0x10}, yes, unknown, unknown, yes,
ConstString(), unknown, 0, unknown, unknown),
MemoryRegionInfo({0x2000, 0x20}, yes, unknown, unknown, yes,
ConstString(), unknown, 0, unknown, unknown)),
false));
}
TEST_F(MinidumpParserTest, GetMemoryRegionInfoLinuxMaps) {
ASSERT_THAT_ERROR(SetUpFromYaml(R"(
--- !minidump
Streams:
- Type: LinuxMaps
Text: |
400d9000-400db000 r-xp 00000000 b3:04 227 /system/bin/app_process
400db000-400dc000 r--p 00001000 b3:04 227 /system/bin/app_process
400dc000-400dd000 rw-p 00000000 00:00 0
400ec000-400ed000 r--p 00000000 00:00 0
400ee000-400ef000 rw-p 00010000 b3:04 300 /system/bin/linker
400fc000-400fd000 rwxp 00001000 b3:04 1096 /system/lib/liblog.so
...
)"),
llvm::Succeeded());
// Test we can get memory regions from the linux /proc/<pid>/maps stream when
// we don't have a MemoryInfoListStream.
ConstString app_process("/system/bin/app_process");
ConstString linker("/system/bin/linker");
ConstString liblog("/system/lib/liblog.so");
EXPECT_THAT(
parser->BuildMemoryRegions(),
testing::Pair(
testing::ElementsAre(
MemoryRegionInfo({0x400d9000, 0x2000}, yes, no, yes, yes,
app_process, unknown, 0, unknown, unknown),
MemoryRegionInfo({0x400db000, 0x1000}, yes, no, no, yes,
app_process, unknown, 0, unknown, unknown),
MemoryRegionInfo({0x400dc000, 0x1000}, yes, yes, no, yes,
ConstString(), unknown, 0, unknown, unknown),
MemoryRegionInfo({0x400ec000, 0x1000}, yes, no, no, yes,
ConstString(), unknown, 0, unknown, unknown),
MemoryRegionInfo({0x400ee000, 0x1000}, yes, yes, no, yes, linker,
unknown, 0, unknown, unknown),
MemoryRegionInfo({0x400fc000, 0x1000}, yes, yes, yes, yes, liblog,
unknown, 0, unknown, unknown)),
true));
}
TEST_F(MinidumpParserTest, GetMemoryRegionInfoLinuxMapsError) {
ASSERT_THAT_ERROR(SetUpFromYaml(R"(
--- !minidump
Streams:
- Type: LinuxMaps
Text: |
400d9000-400db000 r?xp 00000000 b3:04 227
400fc000-400fd000 rwxp 00001000 b3:04 1096
...
)"),
llvm::Succeeded());
// Test that when a /proc/maps region fails to parse
// we handle the error and continue with the rest.
EXPECT_THAT(
parser->BuildMemoryRegions(),
testing::Pair(testing::ElementsAre(MemoryRegionInfo(
{0x400fc000, 0x1000}, yes, yes, yes, yes,
ConstString(nullptr), unknown, 0, unknown, unknown)),
true));
}
// Windows Minidump tests
TEST_F(MinidumpParserTest, GetArchitectureWindows) {
ASSERT_THAT_ERROR(SetUpFromYaml(R"(
--- !minidump
Streams:
- Type: SystemInfo
Processor Arch: X86
Processor Level: 6
Processor Revision: 15876
Number of Processors: 32
Product type: 1
Major Version: 6
Minor Version: 1
Build Number: 7601
Platform ID: Win32NT
CSD Version: Service Pack 1
Suite Mask: 0x0100
CPU:
Vendor ID: GenuineIntel
Version Info: 0x000306E4
Feature Info: 0xBFEBFBFF
AMD Extended Features: 0x771EEC80
...
)"),
llvm::Succeeded());
ASSERT_EQ(llvm::Triple::ArchType::x86,
parser->GetArchitecture().GetMachine());
ASSERT_EQ(llvm::Triple::OSType::Win32,
parser->GetArchitecture().GetTriple().getOS());
}
TEST_F(MinidumpParserTest, GetLinuxProcStatus_no_stream) {
// Test that GetLinuxProcStatus returns nullptr when the minidump does not
// contain this stream.
ASSERT_THAT_ERROR(SetUpFromYaml(R"(
--- !minidump
Streams:
...
)"),
llvm::Succeeded());
EXPECT_EQ(llvm::None, parser->GetLinuxProcStatus());
}
TEST_F(MinidumpParserTest, GetMiscInfoWindows) {
SetUpData("fizzbuzz_no_heap.dmp");
const MinidumpMiscInfo *misc_info = parser->GetMiscInfo();
ASSERT_NE(nullptr, misc_info);
llvm::Optional<lldb::pid_t> pid = misc_info->GetPid();
ASSERT_TRUE(pid.hasValue());
ASSERT_EQ(4440UL, pid.getValue());
}
TEST_F(MinidumpParserTest, GetPidWindows) {
SetUpData("fizzbuzz_no_heap.dmp");
llvm::Optional<lldb::pid_t> pid = parser->GetPid();
ASSERT_TRUE(pid.hasValue());
ASSERT_EQ(4440UL, pid.getValue());
}
// wow64
TEST_F(MinidumpParserTest, GetPidWow64) {
SetUpData("fizzbuzz_wow64.dmp");
llvm::Optional<lldb::pid_t> pid = parser->GetPid();
ASSERT_TRUE(pid.hasValue());
ASSERT_EQ(7836UL, pid.getValue());
}
// Register tests
#define REG_VAL32(x) *(reinterpret_cast<uint32_t *>(x))
#define REG_VAL64(x) *(reinterpret_cast<uint64_t *>(x))
TEST_F(MinidumpParserTest, GetThreadContext_x86_32) {
ASSERT_THAT_ERROR(SetUpFromYaml(R"(
--- !minidump
Streams:
- Type: ThreadList
Threads:
- Thread Id: 0x00026804
Stack:
Start of Memory Range: 0x00000000FF9DD000
Content: 68D39DFF
Context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
)"),
llvm::Succeeded());
llvm::ArrayRef<minidump::Thread> thread_list = parser->GetThreads();
const minidump::Thread &thread = thread_list[0];
llvm::ArrayRef<uint8_t> registers(parser->GetThreadContext(thread));
const MinidumpContext_x86_32 *context;
EXPECT_TRUE(consumeObject(registers, context).Success());
EXPECT_EQ(MinidumpContext_x86_32_Flags(uint32_t(context->context_flags)),
MinidumpContext_x86_32_Flags::x86_32_Flag |
MinidumpContext_x86_32_Flags::Full |
MinidumpContext_x86_32_Flags::FloatingPoint);
EXPECT_EQ(0x00000000u, context->eax);
EXPECT_EQ(0xf7778000u, context->ebx);
EXPECT_EQ(0x00000001u, context->ecx);
EXPECT_EQ(0xff9dd4a3u, context->edx);
EXPECT_EQ(0x080482a8u, context->edi);
EXPECT_EQ(0xff9dd55cu, context->esi);
EXPECT_EQ(0xff9dd53cu, context->ebp);
EXPECT_EQ(0xff9dd52cu, context->esp);
EXPECT_EQ(0x080482a0u, context->eip);
EXPECT_EQ(0x00010282u, context->eflags);
EXPECT_EQ(0x0023u, context->cs);
EXPECT_EQ(0x0000u, context->fs);
EXPECT_EQ(0x0063u, context->gs);
EXPECT_EQ(0x002bu, context->ss);
EXPECT_EQ(0x002bu, context->ds);
EXPECT_EQ(0x002bu, context->es);
}
TEST_F(MinidumpParserTest, GetThreadContext_x86_64) {
ASSERT_THAT_ERROR(SetUpFromYaml(R"(
--- !minidump
Streams:
- Type: ThreadList
Threads:
- Thread Id: 0x00003E81
Stack:
Start of Memory Range: 0x00007FFCEB34A000
Content: C84D04BCE97F00
Context: 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000B0010000000000033000000000000000000000006020100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000010A234EBFC7F000010A234EBFC7F00000000000000000000F09C34EBFC7F0000C0A91ABCE97F00000000000000000000A0163FBCE97F00004602000000000000921C40000000000030A434EBFC7F000000000000000000000000000000000000C61D4000000000007F0300000000000000000000000000000000000000000000801F0000FFFF0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000FFFF00FFFFFFFFFFFFFF00FFFFFFFF25252525252525252525252525252525000000000000000000000000000000000000000000000000000000000000000000FFFF00FFFFFFFFFFFFFF00FFFFFFFF0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000FF00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
...
)"),
llvm::Succeeded());
llvm::ArrayRef<minidump::Thread> thread_list = parser->GetThreads();
const minidump::Thread &thread = thread_list[0];
llvm::ArrayRef<uint8_t> registers(parser->GetThreadContext(thread));
const MinidumpContext_x86_64 *context;
EXPECT_TRUE(consumeObject(registers, context).Success());
EXPECT_EQ(MinidumpContext_x86_64_Flags(uint32_t(context->context_flags)),
MinidumpContext_x86_64_Flags::x86_64_Flag |
MinidumpContext_x86_64_Flags::Control |
MinidumpContext_x86_64_Flags::FloatingPoint |
MinidumpContext_x86_64_Flags::Integer);
EXPECT_EQ(0x0000000000000000u, context->rax);
EXPECT_EQ(0x0000000000000000u, context->rbx);
EXPECT_EQ(0x0000000000000010u, context->rcx);
EXPECT_EQ(0x0000000000000000u, context->rdx);
EXPECT_EQ(0x00007ffceb349cf0u, context->rdi);
EXPECT_EQ(0x0000000000000000u, context->rsi);
EXPECT_EQ(0x00007ffceb34a210u, context->rbp);
EXPECT_EQ(0x00007ffceb34a210u, context->rsp);
EXPECT_EQ(0x00007fe9bc1aa9c0u, context->r8);
EXPECT_EQ(0x0000000000000000u, context->r9);
EXPECT_EQ(0x00007fe9bc3f16a0u, context->r10);
EXPECT_EQ(0x0000000000000246u, context->r11);
EXPECT_EQ(0x0000000000401c92u, context->r12);
EXPECT_EQ(0x00007ffceb34a430u, context->r13);
EXPECT_EQ(0x0000000000000000u, context->r14);
EXPECT_EQ(0x0000000000000000u, context->r15);
EXPECT_EQ(0x0000000000401dc6u, context->rip);
EXPECT_EQ(0x00010206u, context->eflags);
EXPECT_EQ(0x0033u, context->cs);
EXPECT_EQ(0x0000u, context->ss);
}
TEST_F(MinidumpParserTest, GetThreadContext_x86_32_wow64) {
SetUpData("fizzbuzz_wow64.dmp");
llvm::ArrayRef<minidump::Thread> thread_list = parser->GetThreads();
const minidump::Thread &thread = thread_list[0];
llvm::ArrayRef<uint8_t> registers(parser->GetThreadContextWow64(thread));
const MinidumpContext_x86_32 *context;
EXPECT_TRUE(consumeObject(registers, context).Success());
EXPECT_EQ(MinidumpContext_x86_32_Flags(uint32_t(context->context_flags)),
MinidumpContext_x86_32_Flags::x86_32_Flag |
MinidumpContext_x86_32_Flags::Full |
MinidumpContext_x86_32_Flags::FloatingPoint |
MinidumpContext_x86_32_Flags::ExtendedRegisters);
EXPECT_EQ(0x00000000u, context->eax);
EXPECT_EQ(0x0037f608u, context->ebx);
EXPECT_EQ(0x00e61578u, context->ecx);
EXPECT_EQ(0x00000008u, context->edx);
EXPECT_EQ(0x00000000u, context->edi);
EXPECT_EQ(0x00000002u, context->esi);
EXPECT_EQ(0x0037f654u, context->ebp);
EXPECT_EQ(0x0037f5b8u, context->esp);
EXPECT_EQ(0x77ce01fdu, context->eip);
EXPECT_EQ(0x00000246u, context->eflags);
EXPECT_EQ(0x0023u, context->cs);
EXPECT_EQ(0x0053u, context->fs);
EXPECT_EQ(0x002bu, context->gs);
EXPECT_EQ(0x002bu, context->ss);
EXPECT_EQ(0x002bu, context->ds);
EXPECT_EQ(0x002bu, context->es);
}
TEST_F(MinidumpParserTest, MinidumpDuplicateModuleMinAddress) {
ASSERT_THAT_ERROR(SetUpFromYaml(R"(
--- !minidump
Streams:
- Type: ModuleList
Modules:
- Base of Image: 0x0000000000002000
Size of Image: 0x00001000
Module Name: '/tmp/a'
CodeView Record: ''
- Base of Image: 0x0000000000001000
Size of Image: 0x00001000
Module Name: '/tmp/a'
CodeView Record: ''
...
)"),
llvm::Succeeded());
// If we have a module mentioned twice in the module list, the filtered
// module list should contain the instance with the lowest BaseOfImage.
std::vector<const minidump::Module *> filtered_modules =
parser->GetFilteredModuleList();
ASSERT_EQ(1u, filtered_modules.size());
EXPECT_EQ(0x0000000000001000u, filtered_modules[0]->BaseOfImage);
}
TEST_F(MinidumpParserTest, MinidumpDuplicateModuleMappedFirst) {
ASSERT_THAT_ERROR(SetUpFromYaml(R"(
--- !minidump
Streams:
- Type: ModuleList
Modules:
- Base of Image: 0x400d0000
Size of Image: 0x00002000
Module Name: '/usr/lib/libc.so'
CodeView Record: ''
- Base of Image: 0x400d3000
Size of Image: 0x00001000
Module Name: '/usr/lib/libc.so'
CodeView Record: ''
- Type: LinuxMaps
Text: |
400d0000-400d2000 r--p 00000000 b3:04 227 /usr/lib/libc.so
400d2000-400d3000 rw-p 00000000 00:00 0
400d3000-400d4000 r-xp 00010000 b3:04 227 /usr/lib/libc.so
400d4000-400d5000 rwxp 00001000 b3:04 227 /usr/lib/libc.so
...
)"),
llvm::Succeeded());
// If we have a module mentioned twice in the module list, and we have full
// linux maps for all of the memory regions, make sure we pick the one that
// has a consecutive region with a matching path that has executable
// permissions. If clients open an object file with mmap, breakpad can create
// multiple mappings for a library errnoneously and the lowest address isn't
// always the right address. In this case we check the consective memory
// regions whose path matches starting at the base of image address and make
// sure one of the regions is executable and prefer that one.
//
// This test will make sure that if the executable is second in the module
// list, that it will become the selected module in the filtered list.
std::vector<const minidump::Module *> filtered_modules =
parser->GetFilteredModuleList();
ASSERT_EQ(1u, filtered_modules.size());
EXPECT_EQ(0x400d3000u, filtered_modules[0]->BaseOfImage);
}
TEST_F(MinidumpParserTest, MinidumpDuplicateModuleMappedSecond) {
ASSERT_THAT_ERROR(SetUpFromYaml(R"(
--- !minidump
Streams:
- Type: ModuleList
Modules:
- Base of Image: 0x400d0000
Size of Image: 0x00002000
Module Name: '/usr/lib/libc.so'
CodeView Record: ''
- Base of Image: 0x400d3000
Size of Image: 0x00001000
Module Name: '/usr/lib/libc.so'
CodeView Record: ''
- Type: LinuxMaps
Text: |
400d0000-400d1000 r-xp 00010000 b3:04 227 /usr/lib/libc.so
400d1000-400d2000 rwxp 00001000 b3:04 227 /usr/lib/libc.so
400d2000-400d3000 rw-p 00000000 00:00 0
400d3000-400d5000 r--p 00000000 b3:04 227 /usr/lib/libc.so
...
)"),
llvm::Succeeded());
// If we have a module mentioned twice in the module list, and we have full
// linux maps for all of the memory regions, make sure we pick the one that
// has a consecutive region with a matching path that has executable
// permissions. If clients open an object file with mmap, breakpad can create
// multiple mappings for a library errnoneously and the lowest address isn't
// always the right address. In this case we check the consective memory
// regions whose path matches starting at the base of image address and make
// sure one of the regions is executable and prefer that one.
//
// This test will make sure that if the executable is first in the module
// list, that it will remain the correctly selected module in the filtered
// list.
std::vector<const minidump::Module *> filtered_modules =
parser->GetFilteredModuleList();
ASSERT_EQ(1u, filtered_modules.size());
EXPECT_EQ(0x400d0000u, filtered_modules[0]->BaseOfImage);
}
TEST_F(MinidumpParserTest, MinidumpDuplicateModuleMappedSecondHigh) {
ASSERT_THAT_ERROR(SetUpFromYaml(R"(
--- !minidump
Streams:
- Type: ModuleList
Modules:
- Base of Image: 0x400d3000
Size of Image: 0x00002000
Module Name: '/usr/lib/libc.so'
CodeView Record: ''
- Base of Image: 0x400d0000
Size of Image: 0x00001000
Module Name: '/usr/lib/libc.so'
CodeView Record: ''
- Type: LinuxMaps
Text: |
400d0000-400d2000 r--p 00000000 b3:04 227 /usr/lib/libc.so
400d2000-400d3000 rw-p 00000000 00:00 0
400d3000-400d4000 r-xp 00010000 b3:04 227 /usr/lib/libc.so
400d4000-400d5000 rwxp 00001000 b3:04 227 /usr/lib/libc.so
...
)"),
llvm::Succeeded());
// If we have a module mentioned twice in the module list, and we have full
// linux maps for all of the memory regions, make sure we pick the one that
// has a consecutive region with a matching path that has executable
// permissions. If clients open an object file with mmap, breakpad can create
// multiple mappings for a library errnoneously and the lowest address isn't
// always the right address. In this case we check the consective memory
// regions whose path matches starting at the base of image address and make
// sure one of the regions is executable and prefer that one.
//
// This test will make sure that if the executable is first in the module
// list, that it will remain the correctly selected module in the filtered
// list, even if the non-executable module was loaded at a lower base address.
std::vector<const minidump::Module *> filtered_modules =
parser->GetFilteredModuleList();
ASSERT_EQ(1u, filtered_modules.size());
EXPECT_EQ(0x400d3000u, filtered_modules[0]->BaseOfImage);
}
TEST_F(MinidumpParserTest, MinidumpDuplicateModuleSeparateCode) {
ASSERT_THAT_ERROR(SetUpFromYaml(R"(
--- !minidump
Streams:
- Type: ModuleList
Modules:
- Base of Image: 0x400d0000
Size of Image: 0x00002000
Module Name: '/usr/lib/libc.so'
CodeView Record: ''
- Base of Image: 0x400d5000
Size of Image: 0x00001000
Module Name: '/usr/lib/libc.so'
CodeView Record: ''
- Type: LinuxMaps
Text: |
400d0000-400d3000 r--p 00000000 b3:04 227 /usr/lib/libc.so
400d3000-400d5000 rw-p 00000000 00:00 0
400d5000-400d6000 r--p 00000000 b3:04 227 /usr/lib/libc.so
400d6000-400d7000 r-xp 00010000 b3:04 227 /usr/lib/libc.so
400d7000-400d8000 rwxp 00001000 b3:04 227 /usr/lib/libc.so
...
)"),
llvm::Succeeded());
// If we have a module mentioned twice in the module list, and we have full
// linux maps for all of the memory regions, make sure we pick the one that
// has a consecutive region with a matching path that has executable
// permissions. If clients open an object file with mmap, breakpad can create
// multiple mappings for a library errnoneously and the lowest address isn't
// always the right address. In this case we check the consective memory
// regions whose path matches starting at the base of image address and make
// sure one of the regions is executable and prefer that one.
//
// This test will make sure if binaries are compiled with "-z separate-code",
// where the first region for a binary won't be marked as executable, that
// it gets selected by detecting the second consecutive mapping at 0x400d7000
// when asked about the a module mamed "/usr/lib/libc.so" at 0x400d5000.
std::vector<const minidump::Module *> filtered_modules =
parser->GetFilteredModuleList();
ASSERT_EQ(1u, filtered_modules.size());
EXPECT_EQ(0x400d5000u, filtered_modules[0]->BaseOfImage);
}
TEST_F(MinidumpParserTest, MinidumpModuleOrder) {
ASSERT_THAT_ERROR(SetUpFromYaml(R"(
--- !minidump
Streams:
- Type: ModuleList
Modules:
- Base of Image: 0x0000000000002000
Size of Image: 0x00001000
Module Name: '/tmp/a'
CodeView Record: ''
- Base of Image: 0x0000000000001000
Size of Image: 0x00001000
Module Name: '/tmp/b'
CodeView Record: ''
...
)"),
llvm::Succeeded());
// Test module filtering does not affect the overall module order. Previous
// versions of the MinidumpParser::GetFilteredModuleList() function would sort
// all images by address and modify the order of the modules.
std::vector<const minidump::Module *> filtered_modules =
parser->GetFilteredModuleList();
ASSERT_EQ(2u, filtered_modules.size());
EXPECT_EQ(0x0000000000002000u, filtered_modules[0]->BaseOfImage);
EXPECT_THAT_EXPECTED(
parser->GetMinidumpFile().getString(filtered_modules[0]->ModuleNameRVA),
llvm::HasValue("/tmp/a"));
EXPECT_EQ(0x0000000000001000u, filtered_modules[1]->BaseOfImage);
EXPECT_THAT_EXPECTED(
parser->GetMinidumpFile().getString(filtered_modules[1]->ModuleNameRVA),
llvm::HasValue("/tmp/b"));
}
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