// Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
|
// Use of this source code is governed by a BSD-style license that can be
|
// found in the LICENSE file.
|
|
#include <stdint.h>
|
#include <sys/capability.h>
|
#include <sys/mount.h>
|
#include <sys/sysmacros.h>
|
#include <sys/types.h>
|
#include <unistd.h>
|
|
#include <algorithm>
|
#include <map>
|
#include <set>
|
#include <string>
|
#include <vector>
|
|
#include "base/logging.h"
|
|
#include "compat/string.h"
|
#include "compat/test.h"
|
#include "compat/thread.h"
|
#include "dso_test_utils.h"
|
#include "perf_data_utils.h"
|
#include "perf_parser.h"
|
#include "perf_reader.h"
|
#include "perf_serializer.h"
|
#include "perf_test_files.h"
|
#include "scoped_temp_path.h"
|
#include "test_perf_data.h"
|
#include "test_utils.h"
|
|
namespace quipper {
|
|
using SampleEvent = PerfDataProto_SampleEvent;
|
using SampleInfo = PerfDataProto_SampleInfo;
|
using PerfEvent = PerfDataProto_PerfEvent;
|
|
namespace {
|
|
void CheckChronologicalOrderOfEvents(const PerfReader &reader) {
|
if (reader.events().empty()) return;
|
const auto &events = reader.events();
|
uint64_t prev_time = GetTimeFromPerfEvent(events.Get(0));
|
for (int i = 1; i < events.size(); ++i) {
|
uint64_t new_time = GetTimeFromPerfEvent(events.Get(i));
|
CHECK_LE(prev_time, new_time);
|
prev_time = new_time;
|
}
|
}
|
|
void CheckNoDuplicates(const std::vector<string> &list) {
|
std::set<string> list_as_set(list.begin(), list.end());
|
if (list.size() != list_as_set.size())
|
ADD_FAILURE() << "Given list has at least one duplicate";
|
}
|
|
void CreateFilenameToBuildIDMap(
|
const std::vector<string> &filenames, unsigned int seed,
|
std::map<string, string> *filenames_to_build_ids) {
|
srand(seed);
|
// Only use every other filename, so that half the filenames are unused.
|
for (size_t i = 0; i < filenames.size(); i += 2) {
|
u8 build_id[kBuildIDArraySize];
|
for (size_t j = 0; j < kBuildIDArraySize; ++j) build_id[j] = rand_r(&seed);
|
|
(*filenames_to_build_ids)[filenames[i]] =
|
RawDataToHexString(build_id, kBuildIDArraySize);
|
}
|
}
|
|
// Given a PerfReader that has already consumed an input perf data file, inject
|
// new build IDs for the MMAP'd files in the perf data and check that they have
|
// been correctly injected.
|
void CheckFilenameAndBuildIDMethods(PerfReader *reader,
|
const string &output_perf_data_prefix,
|
unsigned int seed) {
|
// Check filenames.
|
std::vector<string> filenames;
|
reader->GetFilenames(&filenames);
|
|
ASSERT_FALSE(filenames.empty());
|
CheckNoDuplicates(filenames);
|
|
std::set<string> filename_set;
|
reader->GetFilenamesAsSet(&filename_set);
|
|
// Make sure all MMAP filenames are in the set.
|
for (const auto &event : reader->events()) {
|
if (event.header().type() == PERF_RECORD_MMAP) {
|
EXPECT_TRUE(filename_set.find(event.mmap_event().filename()) !=
|
filename_set.end())
|
<< event.mmap_event().filename()
|
<< " is not present in the filename set";
|
}
|
}
|
|
std::map<string, string> expected_map;
|
reader->GetFilenamesToBuildIDs(&expected_map);
|
|
// Inject some made up build ids.
|
std::map<string, string> filenames_to_build_ids;
|
CreateFilenameToBuildIDMap(filenames, seed, &filenames_to_build_ids);
|
ASSERT_TRUE(reader->InjectBuildIDs(filenames_to_build_ids));
|
|
// Reader should now correctly populate the filenames to build ids map.
|
std::map<string, string>::const_iterator it;
|
for (it = filenames_to_build_ids.begin(); it != filenames_to_build_ids.end();
|
++it) {
|
expected_map[it->first] = it->second;
|
}
|
std::map<string, string> reader_map;
|
reader->GetFilenamesToBuildIDs(&reader_map);
|
ASSERT_EQ(expected_map, reader_map);
|
|
string output_perf_data1 = output_perf_data_prefix + ".parse.inject.out";
|
ASSERT_TRUE(reader->WriteFile(output_perf_data1));
|
|
// Perf should find the same build ids.
|
std::map<string, string> perf_build_id_map;
|
ASSERT_TRUE(GetPerfBuildIDMap(output_perf_data1, &perf_build_id_map));
|
ASSERT_EQ(expected_map, perf_build_id_map);
|
|
std::map<string, string> build_id_localizer;
|
// Only localize the first half of the files which have build ids.
|
for (size_t j = 0; j < filenames.size() / 2; ++j) {
|
string old_filename = filenames[j];
|
if (expected_map.find(old_filename) == expected_map.end()) continue;
|
string build_id = expected_map[old_filename];
|
|
string new_filename = old_filename + ".local";
|
filenames[j] = new_filename;
|
build_id_localizer[build_id] = new_filename;
|
expected_map[new_filename] = build_id;
|
expected_map.erase(old_filename);
|
}
|
reader->Localize(build_id_localizer);
|
|
// Filenames should be the same.
|
std::vector<string> new_filenames;
|
reader->GetFilenames(&new_filenames);
|
std::sort(filenames.begin(), filenames.end());
|
ASSERT_EQ(filenames, new_filenames);
|
|
// Build ids should be updated.
|
reader_map.clear();
|
reader->GetFilenamesToBuildIDs(&reader_map);
|
ASSERT_EQ(expected_map, reader_map);
|
|
string output_perf_data2 = output_perf_data_prefix + ".parse.localize.out";
|
ASSERT_TRUE(reader->WriteFile(output_perf_data2));
|
|
perf_build_id_map.clear();
|
ASSERT_TRUE(GetPerfBuildIDMap(output_perf_data2, &perf_build_id_map));
|
EXPECT_EQ(expected_map, perf_build_id_map);
|
|
std::map<string, string> filename_localizer;
|
// Only localize every third filename.
|
for (size_t j = 0; j < filenames.size(); j += 3) {
|
string old_filename = filenames[j];
|
string new_filename = old_filename + ".local2";
|
filenames[j] = new_filename;
|
filename_localizer[old_filename] = new_filename;
|
|
if (expected_map.find(old_filename) != expected_map.end()) {
|
string build_id = expected_map[old_filename];
|
expected_map[new_filename] = build_id;
|
expected_map.erase(old_filename);
|
}
|
}
|
reader->LocalizeUsingFilenames(filename_localizer);
|
|
// Filenames should be the same.
|
new_filenames.clear();
|
reader->GetFilenames(&new_filenames);
|
std::sort(filenames.begin(), filenames.end());
|
EXPECT_EQ(filenames, new_filenames);
|
|
// Build ids should be updated.
|
reader_map.clear();
|
reader->GetFilenamesToBuildIDs(&reader_map);
|
EXPECT_EQ(expected_map, reader_map);
|
|
string output_perf_data3 = output_perf_data_prefix + ".parse.localize2.out";
|
ASSERT_TRUE(reader->WriteFile(output_perf_data3));
|
|
perf_build_id_map.clear();
|
ASSERT_TRUE(GetPerfBuildIDMap(output_perf_data3, &perf_build_id_map));
|
EXPECT_EQ(expected_map, perf_build_id_map);
|
}
|
|
void CopyActualEvents(const std::vector<ParsedEvent> &events,
|
PerfDataProto *out) {
|
for (const auto &ev : events) {
|
if (ev.event_ptr == nullptr) {
|
continue;
|
}
|
*out->add_events() = *ev.event_ptr;
|
}
|
}
|
|
} // namespace
|
|
TEST(PerfParserTest, TestDSOAndOffsetConstructor) {
|
// DSOAndOffset contains a pointer to a dso info struct. Make sure this is
|
// initialized in a way such that DSOAndOffset::dso_name() executes without
|
// segfault and returns an empty string.
|
ParsedEvent::DSOAndOffset dso_and_offset;
|
EXPECT_TRUE(dso_and_offset.dso_name().empty());
|
}
|
|
class PerfDataFiles : public ::testing::TestWithParam<const char *> {};
|
class PerfPipedDataFiles : public ::testing::TestWithParam<const char *> {};
|
|
TEST_P(PerfDataFiles, NormalPerfData) {
|
ScopedTempDir output_dir;
|
ASSERT_FALSE(output_dir.path().empty());
|
string output_path = output_dir.path();
|
|
int seed = 0;
|
string test_file = GetParam();
|
string input_perf_data = GetTestInputFilePath(test_file);
|
LOG(INFO) << "Testing " << input_perf_data;
|
|
PerfReader reader;
|
ASSERT_TRUE(reader.ReadFile(input_perf_data));
|
|
// Test the PerfReader stage of the processing before continuing.
|
string pr_output_perf_data = output_path + test_file + ".pr.out";
|
ASSERT_TRUE(reader.WriteFile(pr_output_perf_data));
|
EXPECT_TRUE(CheckPerfDataAgainstBaseline(pr_output_perf_data));
|
|
// Run it through PerfParser.
|
PerfParserOptions options = GetTestOptions();
|
options.sort_events_by_time = true;
|
PerfParser parser(&reader, options);
|
ASSERT_TRUE(parser.ParseRawEvents());
|
|
CHECK_GT(parser.parsed_events().size(), 0U);
|
CheckChronologicalOrderOfEvents(reader);
|
|
// Check perf event stats.
|
const PerfEventStats &stats = parser.stats();
|
EXPECT_GT(stats.num_sample_events, 0U);
|
EXPECT_GT(stats.num_mmap_events, 0U);
|
EXPECT_GT(stats.num_sample_events_mapped, 0U);
|
EXPECT_FALSE(stats.did_remap);
|
|
string parsed_perf_data = output_path + test_file + ".parse.out";
|
ASSERT_TRUE(reader.WriteFile(parsed_perf_data));
|
|
EXPECT_TRUE(CheckPerfDataAgainstBaseline(parsed_perf_data));
|
EXPECT_TRUE(ComparePerfBuildIDLists(input_perf_data, parsed_perf_data));
|
|
// Run the event parsing again, this time with remapping.
|
options = PerfParserOptions();
|
options.do_remap = true;
|
parser.set_options(options);
|
ASSERT_TRUE(parser.ParseRawEvents());
|
|
// Check perf event stats.
|
EXPECT_GT(stats.num_sample_events, 0U);
|
EXPECT_GT(stats.num_mmap_events, 0U);
|
EXPECT_GT(stats.num_sample_events_mapped, 0U);
|
EXPECT_TRUE(stats.did_remap);
|
|
// Remapped addresses should not match the original addresses.
|
string remapped_perf_data = output_path + test_file + ".parse.remap.out";
|
ASSERT_TRUE(reader.WriteFile(remapped_perf_data));
|
EXPECT_TRUE(CheckPerfDataAgainstBaseline(remapped_perf_data));
|
|
// Remapping again should produce the same addresses.
|
LOG(INFO) << "Reading in remapped data: " << remapped_perf_data;
|
PerfReader remap_reader;
|
ASSERT_TRUE(remap_reader.ReadFile(remapped_perf_data));
|
|
PerfParser remap_parser(&remap_reader, options);
|
ASSERT_TRUE(remap_parser.ParseRawEvents());
|
|
const PerfEventStats &remap_stats = remap_parser.stats();
|
EXPECT_GT(remap_stats.num_sample_events, 0U);
|
EXPECT_GT(remap_stats.num_mmap_events, 0U);
|
EXPECT_GT(remap_stats.num_sample_events_mapped, 0U);
|
EXPECT_TRUE(remap_stats.did_remap);
|
|
ASSERT_EQ(stats.num_sample_events, remap_stats.num_sample_events);
|
ASSERT_EQ(stats.num_mmap_events, remap_stats.num_mmap_events);
|
ASSERT_EQ(stats.num_sample_events_mapped,
|
remap_stats.num_sample_events_mapped);
|
|
string remapped_perf_data2 = output_path + test_file + ".parse.remap2.out";
|
ASSERT_TRUE(remap_reader.WriteFile(remapped_perf_data2));
|
|
// No need to call CheckPerfDataAgainstBaseline again. Just compare
|
// ParsedEvents.
|
const auto &parser_events = parser.parsed_events();
|
const auto &remap_parser_events = remap_parser.parsed_events();
|
EXPECT_EQ(parser_events.size(), remap_parser_events.size());
|
EXPECT_TRUE(std::equal(parser_events.begin(), parser_events.end(),
|
remap_parser_events.begin()));
|
EXPECT_TRUE(ComparePerfBuildIDLists(remapped_perf_data, remapped_perf_data2));
|
|
// This must be called when |reader| is no longer going to be used, as it
|
// modifies the contents of |reader|.
|
CheckFilenameAndBuildIDMethods(&reader, output_path + test_file, seed);
|
++seed;
|
}
|
|
TEST_P(PerfPipedDataFiles, PipedModePerfData) {
|
ScopedTempDir output_dir;
|
ASSERT_FALSE(output_dir.path().empty());
|
string output_path = output_dir.path();
|
|
int seed = 0;
|
const string test_file = GetParam();
|
string input_perf_data = GetTestInputFilePath(test_file);
|
LOG(INFO) << "Testing " << input_perf_data;
|
string output_perf_data = output_path + test_file + ".pr.out";
|
|
PerfReader reader;
|
ASSERT_TRUE(reader.ReadFile(input_perf_data));
|
|
// Check results from the PerfReader stage.
|
ASSERT_TRUE(reader.WriteFile(output_perf_data));
|
EXPECT_TRUE(CheckPerfDataAgainstBaseline(output_perf_data));
|
|
PerfParserOptions options = GetTestOptions();
|
options.do_remap = true;
|
options.sort_events_by_time = true;
|
PerfParser parser(&reader, options);
|
ASSERT_TRUE(parser.ParseRawEvents());
|
|
EXPECT_GT(parser.stats().num_sample_events, 0U);
|
EXPECT_GT(parser.stats().num_mmap_events, 0U);
|
EXPECT_GT(parser.stats().num_sample_events_mapped, 0U);
|
EXPECT_TRUE(parser.stats().did_remap);
|
|
// This must be called when |reader| is no longer going to be used, as it
|
// modifies the contents of |reader|.
|
CheckFilenameAndBuildIDMethods(&reader, output_path + test_file, seed);
|
++seed;
|
}
|
|
INSTANTIATE_TEST_CASE_P(
|
PerfParserTest, PerfDataFiles,
|
::testing::ValuesIn(perf_test_files::GetPerfDataFiles()));
|
INSTANTIATE_TEST_CASE_P(
|
PerfParserTest, PerfPipedDataFiles,
|
::testing::ValuesIn(perf_test_files::GetPerfPipedDataFiles()));
|
|
TEST(PerfParserTest, MapsSampleEventIp) {
|
std::stringstream input;
|
|
// header
|
testing::ExamplePipedPerfDataFileHeader().WriteTo(&input);
|
|
// data
|
|
// PERF_RECORD_HEADER_ATTR
|
testing::ExamplePerfEventAttrEvent_Hardware(PERF_SAMPLE_IP | PERF_SAMPLE_TID,
|
true /*sample_id_all*/)
|
.WriteTo(&input);
|
|
// PERF_RECORD_MMAP
|
testing::ExampleMmapEvent(1001, 0x1c1000, 0x1000, 0, "/usr/lib/foo.so",
|
testing::SampleInfo().Tid(1001))
|
.WriteTo(&input); // 0
|
// becomes: 0x0000, 0x1000, 0
|
testing::ExampleMmapEvent(1001, 0x1c3000, 0x2000, 0x2000, "/usr/lib/bar.so",
|
testing::SampleInfo().Tid(1001))
|
.WriteTo(&input); // 1
|
// becomes: 0x1000, 0x2000, 0
|
|
// PERF_RECORD_MMAP2
|
testing::ExampleMmap2Event(1002, 0x2c1000, 0x2000, 0, "/usr/lib/baz.so",
|
testing::SampleInfo().Tid(1002))
|
.WriteTo(&input); // 2
|
// becomes: 0x0000, 0x2000, 0
|
testing::ExampleMmap2Event(1002, 0x2c3000, 0x1000, 0x3000, "/usr/lib/xyz.so",
|
testing::SampleInfo().Tid(1002))
|
.WriteTo(&input); // 3
|
// becomes: 0x1000, 0x1000, 0
|
|
// PERF_RECORD_SAMPLE
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x00000000001c1000).Tid(1001))
|
.WriteTo(&input); // 4
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x00000000001c100a).Tid(1001))
|
.WriteTo(&input); // 5
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x00000000001c3fff).Tid(1001))
|
.WriteTo(&input); // 6
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x00000000001c2bad).Tid(1001))
|
.WriteTo(&input); // 7 (not mapped)
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x00000000002c100a).Tid(1002))
|
.WriteTo(&input); // 8
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x00000000002c5bad).Tid(1002))
|
.WriteTo(&input); // 9 (not mapped)
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x00000000002c300b).Tid(1002))
|
.WriteTo(&input); // 10
|
|
// not mapped yet:
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x00000000002c400b).Tid(1002))
|
.WriteTo(&input); // 11
|
testing::ExampleMmap2Event(1002, 0x2c4000, 0x1000, 0, "/usr/lib/new.so",
|
testing::SampleInfo().Tid(1002))
|
.WriteTo(&input); // 12
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x00000000002c400b).Tid(1002))
|
.WriteTo(&input); // 13
|
|
//
|
// Parse input.
|
//
|
|
PerfReader reader;
|
EXPECT_TRUE(reader.ReadFromString(input.str()));
|
|
PerfParserOptions options;
|
options.sample_mapping_percentage_threshold = 0;
|
options.do_remap = true;
|
PerfParser parser(&reader, options);
|
EXPECT_TRUE(parser.ParseRawEvents());
|
|
EXPECT_EQ(5, parser.stats().num_mmap_events);
|
EXPECT_EQ(9, parser.stats().num_sample_events);
|
EXPECT_EQ(6, parser.stats().num_sample_events_mapped);
|
|
const std::vector<ParsedEvent> &events = parser.parsed_events();
|
ASSERT_EQ(14, events.size());
|
|
// MMAPs
|
|
EXPECT_EQ(PERF_RECORD_MMAP, events[0].event_ptr->header().type());
|
EXPECT_EQ("/usr/lib/foo.so", events[0].event_ptr->mmap_event().filename());
|
EXPECT_EQ(0x0000, events[0].event_ptr->mmap_event().start());
|
EXPECT_EQ(0x1000, events[0].event_ptr->mmap_event().len());
|
EXPECT_EQ(0, events[0].event_ptr->mmap_event().pgoff());
|
|
EXPECT_EQ(PERF_RECORD_MMAP, events[1].event_ptr->header().type());
|
EXPECT_EQ("/usr/lib/bar.so", events[1].event_ptr->mmap_event().filename());
|
EXPECT_EQ(0x1000, events[1].event_ptr->mmap_event().start());
|
EXPECT_EQ(0x2000, events[1].event_ptr->mmap_event().len());
|
EXPECT_EQ(0x2000, events[1].event_ptr->mmap_event().pgoff());
|
|
EXPECT_EQ(PERF_RECORD_MMAP2, events[2].event_ptr->header().type());
|
EXPECT_EQ("/usr/lib/baz.so", events[2].event_ptr->mmap_event().filename());
|
EXPECT_EQ(0x0000, events[2].event_ptr->mmap_event().start());
|
EXPECT_EQ(0x2000, events[2].event_ptr->mmap_event().len());
|
EXPECT_EQ(0, events[2].event_ptr->mmap_event().pgoff());
|
|
EXPECT_EQ(PERF_RECORD_MMAP2, events[3].event_ptr->header().type());
|
EXPECT_EQ("/usr/lib/xyz.so", events[3].event_ptr->mmap_event().filename());
|
EXPECT_EQ(0x2000, events[3].event_ptr->mmap_event().start());
|
EXPECT_EQ(0x1000, events[3].event_ptr->mmap_event().len());
|
EXPECT_EQ(0x3000, events[3].event_ptr->mmap_event().pgoff());
|
|
// SAMPLEs
|
|
EXPECT_EQ(PERF_RECORD_SAMPLE, events[4].event_ptr->header().type());
|
EXPECT_EQ("/usr/lib/foo.so", events[4].dso_and_offset.dso_name());
|
EXPECT_EQ(0x0, events[4].dso_and_offset.offset());
|
EXPECT_EQ(0x0, events[4].event_ptr->sample_event().ip());
|
|
EXPECT_EQ(PERF_RECORD_SAMPLE, events[5].event_ptr->header().type());
|
EXPECT_EQ("/usr/lib/foo.so", events[5].dso_and_offset.dso_name());
|
EXPECT_EQ(0xa, events[5].dso_and_offset.offset());
|
EXPECT_EQ(0xa, events[5].event_ptr->sample_event().ip());
|
|
EXPECT_EQ(PERF_RECORD_SAMPLE, events[6].event_ptr->header().type());
|
EXPECT_EQ("/usr/lib/bar.so", events[6].dso_and_offset.dso_name());
|
EXPECT_EQ(0x2fff, events[6].dso_and_offset.offset());
|
EXPECT_EQ(0x1fff, events[6].event_ptr->sample_event().ip());
|
|
EXPECT_EQ(PERF_RECORD_SAMPLE, events[7].event_ptr->header().type());
|
EXPECT_EQ(0x00000000001c2bad, events[7].event_ptr->sample_event().ip());
|
|
EXPECT_EQ(PERF_RECORD_SAMPLE, events[8].event_ptr->header().type());
|
EXPECT_EQ("/usr/lib/baz.so", events[8].dso_and_offset.dso_name());
|
EXPECT_EQ(0xa, events[8].dso_and_offset.offset());
|
EXPECT_EQ(0xa, events[8].event_ptr->sample_event().ip());
|
|
EXPECT_EQ(PERF_RECORD_SAMPLE, events[9].event_ptr->header().type());
|
EXPECT_EQ(0x00000000002c5bad, events[9].event_ptr->sample_event().ip());
|
|
EXPECT_EQ(PERF_RECORD_SAMPLE, events[10].event_ptr->header().type());
|
EXPECT_EQ("/usr/lib/xyz.so", events[10].dso_and_offset.dso_name());
|
EXPECT_EQ(0x300b, events[10].dso_and_offset.offset());
|
EXPECT_EQ(0x200b, events[10].event_ptr->sample_event().ip());
|
|
// not mapped yet:
|
EXPECT_EQ(PERF_RECORD_SAMPLE, events[11].event_ptr->header().type());
|
EXPECT_EQ(0x00000000002c400b, events[11].event_ptr->sample_event().ip());
|
|
EXPECT_EQ(PERF_RECORD_MMAP2, events[12].event_ptr->header().type());
|
EXPECT_EQ("/usr/lib/new.so", events[12].event_ptr->mmap_event().filename());
|
EXPECT_EQ(0x3000, events[12].event_ptr->mmap_event().start());
|
EXPECT_EQ(0x1000, events[12].event_ptr->mmap_event().len());
|
EXPECT_EQ(0, events[12].event_ptr->mmap_event().pgoff());
|
|
EXPECT_EQ(PERF_RECORD_SAMPLE, events[13].event_ptr->header().type());
|
EXPECT_EQ("/usr/lib/new.so", events[13].dso_and_offset.dso_name());
|
EXPECT_EQ(0xb, events[13].dso_and_offset.offset());
|
EXPECT_EQ(0x300b, events[13].event_ptr->sample_event().ip());
|
}
|
|
TEST(PerfParserTest, DsoInfoHasBuildId) {
|
std::stringstream input;
|
|
// header
|
testing::ExamplePipedPerfDataFileHeader().WriteTo(&input);
|
|
// data
|
|
// PERF_RECORD_HEADER_ATTR
|
testing::ExamplePerfEventAttrEvent_Hardware(PERF_SAMPLE_IP | PERF_SAMPLE_TID,
|
true /*sample_id_all*/)
|
.WriteTo(&input);
|
|
// PERF_RECORD_MMAP
|
testing::ExampleMmapEvent(1001, 0x1c1000, 0x1000, 0, "/usr/lib/foo.so",
|
testing::SampleInfo().Tid(1001))
|
.WriteTo(&input); // 0
|
// becomes: 0x0000, 0x1000, 0
|
testing::ExampleMmapEvent(1001, 0x1c3000, 0x2000, 0x2000, "/usr/lib/bar.so",
|
testing::SampleInfo().Tid(1001))
|
.WriteTo(&input); // 1
|
// becomes: 0x1000, 0x2000, 0
|
|
// PERF_RECORD_HEADER_BUILDID // N/A
|
string build_id_filename("/usr/lib/foo.so\0", 2 * sizeof(u64));
|
ASSERT_EQ(0, build_id_filename.size() % sizeof(u64)) << "Sanity check";
|
const size_t event_size =
|
sizeof(struct build_id_event) + build_id_filename.size();
|
const struct build_id_event event = {
|
.header =
|
{
|
.type = PERF_RECORD_HEADER_BUILD_ID,
|
.misc = 0,
|
.size = static_cast<u16>(event_size),
|
},
|
.pid = -1,
|
.build_id = {0xde, 0xad, 0xf0, 0x0d},
|
};
|
input.write(reinterpret_cast<const char *>(&event), sizeof(event));
|
input.write(build_id_filename.data(), build_id_filename.size());
|
|
// PERF_RECORD_SAMPLE
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x00000000001c1000).Tid(1001))
|
.WriteTo(&input); // 2
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x00000000001c300a).Tid(1001))
|
.WriteTo(&input); // 3
|
|
//
|
// Parse input.
|
//
|
|
PerfReader reader;
|
EXPECT_TRUE(reader.ReadFromString(input.str()));
|
|
PerfParserOptions options;
|
options.sample_mapping_percentage_threshold = 0;
|
PerfParser parser(&reader, options);
|
EXPECT_TRUE(parser.ParseRawEvents());
|
|
EXPECT_EQ(2, parser.stats().num_mmap_events);
|
EXPECT_EQ(2, parser.stats().num_sample_events);
|
EXPECT_EQ(2, parser.stats().num_sample_events_mapped);
|
|
const std::vector<ParsedEvent> &events = parser.parsed_events();
|
ASSERT_EQ(4, events.size());
|
|
EXPECT_EQ("/usr/lib/foo.so", events[2].dso_and_offset.dso_name());
|
EXPECT_EQ("deadf00d00000000000000000000000000000000",
|
events[2].dso_and_offset.build_id());
|
EXPECT_EQ("/usr/lib/bar.so", events[3].dso_and_offset.dso_name());
|
EXPECT_EQ("", events[3].dso_and_offset.build_id());
|
}
|
|
// Check the process has a Linux capability. See libcap(3) and capabilities(7).
|
bool HaveCapability(cap_value_t capability) {
|
cap_t capabilities = cap_get_proc();
|
cap_flag_value_t value;
|
CHECK_EQ(cap_get_flag(capabilities, capability, CAP_EFFECTIVE, &value), 0);
|
cap_free(capabilities);
|
return value == CAP_SET;
|
}
|
|
class RunInMountNamespaceThread : public quipper::Thread {
|
public:
|
explicit RunInMountNamespaceThread(string tmpdir, string mntdir)
|
: quipper::Thread("MntNamespace"),
|
tmpdir_(std::move(tmpdir)),
|
mntdir_(std::move(mntdir)) {}
|
|
void Start() override {
|
quipper::Thread::Start();
|
ready.Wait();
|
}
|
|
void Join() override {
|
exit.Notify();
|
quipper::Thread::Join();
|
}
|
|
private:
|
void Run() override {
|
CHECK_EQ(unshare(CLONE_NEWNS), 0);
|
CHECK_EQ(mount(tmpdir_.c_str(), mntdir_.c_str(), nullptr, MS_BIND, nullptr),
|
0);
|
ready.Notify();
|
exit.Wait();
|
}
|
|
Notification ready;
|
Notification exit;
|
string tmpdir_;
|
string mntdir_;
|
};
|
|
// Root task <pid>/<pid> Filesystem:
|
// "/tmp/quipper_tmp.../file_in_namespace" buildid: deadbeef ino: X
|
// "/tmp/quipper_mnt.../file_in_namespace" (Doesn't exist)
|
// Container task <pid>/<tid> Filesystem:
|
// "/tmp/quipper_tmp.../file_in_namespace" buildid: deadbeef ino: X
|
// * "/tmp/quipper_mnt.../file_in_namespace" buildid: deadbeef ino: X
|
// <path> = marked with *
|
// MMAP2: <pid+10>/<tid+1>, <path>, ino: X
|
// MMAP2: <pid>/<tid>, <path>, ino: X
|
// Reject (doesn't exist): /proc/<tid+10>/root/<path>
|
// Reject (doesn't exist): /proc/<pid+1>/root/<path>
|
// Accept: /proc/<tid>/root/<path>
|
// (Not tried): /proc/<pid>/root/<path>
|
// (Not tried): /<path>
|
// Expected buildid for <path>: "deadbeef"
|
TEST(PerfParserTest, ReadsBuildidsInMountNamespace) {
|
if (!HaveCapability(CAP_SYS_ADMIN)) return; // Skip test.
|
ScopedTempDir tmpdir("/tmp/quipper_tmp.");
|
ScopedTempDir mntdir("/tmp/quipper_mnt.");
|
RunInMountNamespaceThread thread(tmpdir.path(), mntdir.path());
|
thread.Start();
|
const pid_t pid = getpid();
|
const pid_t tid = thread.tid();
|
|
const string tmpfile = tmpdir.path() + "file_in_namespace";
|
const string tmpfile_in_ns = mntdir.path() + "file_in_namespace";
|
InitializeLibelf();
|
testing::WriteElfWithBuildid(tmpfile, ".note.gnu.build-id",
|
"\xde\xad\xbe\xef");
|
struct stat tmp_stat;
|
ASSERT_NE(stat(tmpfile_in_ns.c_str(), &tmp_stat), 0);
|
ASSERT_EQ(stat(tmpfile.c_str(), &tmp_stat), 0);
|
|
// Create perf.data
|
std::stringstream input;
|
|
// header
|
testing::ExamplePipedPerfDataFileHeader().WriteTo(&input);
|
|
// data
|
|
// PERF_RECORD_HEADER_ATTR
|
testing::ExamplePerfEventAttrEvent_Hardware(PERF_SAMPLE_IP | PERF_SAMPLE_TID,
|
true /*sample_id_all*/)
|
.WriteTo(&input);
|
|
// PERF_RECORD_MMAP2
|
// - mmap from a process and thread that doesn't exist
|
testing::ExampleMmap2Event(pid, tid, 0x1c1000, 0x1000, 0, tmpfile_in_ns,
|
testing::SampleInfo().Tid(pid + 10, tid + 1))
|
.WithDeviceInfo(major(tmp_stat.st_dev), minor(tmp_stat.st_dev),
|
tmp_stat.st_ino)
|
.WriteTo(&input); // 0
|
// - mmap from a running thread
|
testing::ExampleMmap2Event(pid, tid, 0x1c2000, 0x1000, 0, tmpfile_in_ns,
|
testing::SampleInfo().Tid(pid, tid))
|
.WithDeviceInfo(major(tmp_stat.st_dev), minor(tmp_stat.st_dev),
|
tmp_stat.st_ino)
|
.WriteTo(&input); // 1
|
|
// PERF_RECORD_SAMPLE
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x00000000001c1000).Tid(pid, tid))
|
.WriteTo(&input); // 2
|
|
//
|
// Parse input.
|
//
|
|
PerfReader reader;
|
EXPECT_TRUE(reader.ReadFromString(input.str()));
|
|
PerfParserOptions options;
|
options.read_missing_buildids = true;
|
options.sample_mapping_percentage_threshold = 0;
|
PerfParser parser(&reader, options);
|
EXPECT_TRUE(parser.ParseRawEvents());
|
|
EXPECT_EQ(2, parser.stats().num_mmap_events);
|
EXPECT_EQ(1, parser.stats().num_sample_events);
|
EXPECT_EQ(1, parser.stats().num_sample_events_mapped);
|
|
const std::vector<ParsedEvent> &events = parser.parsed_events();
|
ASSERT_EQ(3, events.size());
|
|
EXPECT_EQ(tmpfile_in_ns, events[2].dso_and_offset.dso_name());
|
EXPECT_EQ("deadbeef", events[2].dso_and_offset.build_id());
|
|
thread.Join();
|
}
|
|
class RunInMountNamespaceProcess {
|
public:
|
RunInMountNamespaceProcess(string tmpdir, string mntdir)
|
: pid_(0), tmpdir_(std::move(tmpdir)), mntdir_(std::move(mntdir)) {}
|
|
void Start() {
|
int pipe_fd[2];
|
int nonce = 0;
|
CHECK_EQ(pipe(pipe_fd), 0) << "pipe: " << strerror(errno);
|
|
pid_ = fork();
|
CHECK_NE(-1, pid_) << "fork: " << strerror(errno);
|
if (pid_ == 0) { // child
|
close(pipe_fd[0]);
|
CHECK_EQ(unshare(CLONE_NEWNS), 0);
|
CHECK_EQ(
|
mount(tmpdir_.c_str(), mntdir_.c_str(), nullptr, MS_BIND, nullptr),
|
0);
|
// Tell parent mounting is done.
|
CHECK_EQ(write(pipe_fd[1], &nonce, sizeof(nonce)),
|
static_cast<ssize_t>(sizeof(nonce)));
|
close(pipe_fd[1]);
|
pause(); // Wait to be killed. (So morbid.)
|
std::_Exit(-1);
|
}
|
close(pipe_fd[1]);
|
|
// Wait for child to tell us it has mounted the dir.
|
ssize_t sz = read(pipe_fd[0], &nonce, sizeof(nonce));
|
CHECK_EQ(sz, static_cast<ssize_t>(sizeof(nonce)))
|
<< "read: " << strerror(errno);
|
close(pipe_fd[0]);
|
}
|
|
void Exit() {
|
kill(pid_, SIGTERM);
|
waitpid(pid_, nullptr, 0);
|
}
|
|
pid_t pid() { return pid_; }
|
|
private:
|
pid_t pid_;
|
string tmpdir_;
|
string mntdir_;
|
};
|
|
// Root task <pid>/<pid> Filesystem:
|
// "/tmp/quipper_tmp.../file_in_namespace" buildid: deadbeef ino: X
|
// * "/tmp/quipper_mnt.../file_in_namespace" buildid: baadf00d ino: Y
|
// Container task <pid2>/<pid2> Filesystem:
|
// "/tmp/quipper_tmp.../file_in_namespace" buildid: deadbeef ino: X
|
// * "/tmp/quipper_mnt.../file_in_namespace" buildid: deadbeef ino: X
|
// <path> = marked with *
|
// MMAP2: <pid2>/<pid2+1>, <path>, ino: X
|
// Reject (doesn't exist): /proc/<pid2+1>/root/<path>
|
// Accept: /proc/<pid2>/root/<path>
|
// (Not tried): /<path>
|
// Expected buildid for <path>: "deadbeef"
|
TEST(PerfParserTest, ReadsBuildidsInMountNamespace_TriesOwningProcess) {
|
if (!HaveCapability(CAP_SYS_ADMIN)) return; // Skip test.
|
ScopedTempDir tmpdir("/tmp/quipper_tmp.");
|
ScopedTempDir mntdir("/tmp/quipper_mnt.");
|
RunInMountNamespaceProcess process(tmpdir.path(), mntdir.path());
|
process.Start();
|
|
// Pretend we launched a thread in the other process, it mapped the file,
|
// and then exited. Let's make up a tid for it that's not likely to exist.
|
const pid_t pid = process.pid();
|
const pid_t tid = pid + 1;
|
|
const string tmpfile = tmpdir.path() + "file_in_namespace";
|
const string tmpfile_in_ns = mntdir.path() + "file_in_namespace";
|
InitializeLibelf();
|
testing::WriteElfWithBuildid(tmpfile, ".note.gnu.build-id",
|
"\xde\xad\xbe\xef");
|
// It's a trap! If "baadf00d" is seen, we read the wrong file.
|
testing::WriteElfWithBuildid(tmpfile_in_ns, ".note.gnu.build-id",
|
"\xba\xad\xf0\x0d");
|
struct stat tmp_stat;
|
ASSERT_EQ(stat(tmpfile.c_str(), &tmp_stat), 0);
|
|
// Create perf.data
|
std::stringstream input;
|
|
// header
|
testing::ExamplePipedPerfDataFileHeader().WriteTo(&input);
|
|
// data
|
|
// PERF_RECORD_HEADER_ATTR
|
testing::ExamplePerfEventAttrEvent_Hardware(PERF_SAMPLE_IP | PERF_SAMPLE_TID,
|
true /*sample_id_all*/)
|
.WriteTo(&input);
|
|
// PERF_RECORD_MMAP2
|
testing::ExampleMmap2Event(pid, tid, 0x1c1000, 0x1000, 0, tmpfile_in_ns,
|
testing::SampleInfo().Tid(pid, tid))
|
.WithDeviceInfo(major(tmp_stat.st_dev), minor(tmp_stat.st_dev),
|
tmp_stat.st_ino)
|
.WriteTo(&input); // 0
|
|
// PERF_RECORD_SAMPLE
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x00000000001c1000).Tid(pid, tid))
|
.WriteTo(&input); // 1
|
|
//
|
// Parse input.
|
//
|
|
PerfReader reader;
|
EXPECT_TRUE(reader.ReadFromString(input.str()));
|
|
PerfParserOptions options;
|
options.read_missing_buildids = true;
|
options.sample_mapping_percentage_threshold = 0;
|
PerfParser parser(&reader, options);
|
EXPECT_TRUE(parser.ParseRawEvents());
|
|
EXPECT_EQ(1, parser.stats().num_mmap_events);
|
EXPECT_EQ(1, parser.stats().num_sample_events);
|
EXPECT_EQ(1, parser.stats().num_sample_events_mapped);
|
|
const std::vector<ParsedEvent> &events = parser.parsed_events();
|
ASSERT_EQ(2, events.size());
|
|
EXPECT_EQ(tmpfile_in_ns, events[1].dso_and_offset.dso_name());
|
EXPECT_EQ("deadbeef", events[1].dso_and_offset.build_id());
|
|
process.Exit();
|
}
|
|
// Root task <pid>/<pid> Filesystem:
|
// * "/tmp/quipper_tmp.../file_in_namespace" buildid: deadbeef ino: X
|
// "/tmp/quipper_mnt.../file_in_namespace" buildid: baadf00d ino: Y
|
// Container task <pid>/<tid> Filesystem:
|
// * "/tmp/quipper_tmp.../file_in_namespace" buildid: deadbeef ino: X
|
// "/tmp/quipper_mnt.../file_in_namespace" buildid: deadbeef ino: X
|
// <path> = marked with *
|
// MMAP2: <pid+10>/<tid+1>, <path>, ino: X
|
// Reject (doesn't exist): /proc/<tid+1>/root/<path>
|
// Reject (doesn't exist): /proc/<pid+10>/root/<path>
|
// Accept (same inode): /<path>
|
// Expected buildid for <path>: "deadbeef"
|
TEST(PerfParserTest, ReadsBuildidsInMountNamespace_TriesRootFs) {
|
if (!HaveCapability(CAP_SYS_ADMIN)) return; // Skip test.
|
ScopedTempDir tmpdir("/tmp/quipper_tmp.");
|
ScopedTempDir mntdir("/tmp/quipper_mnt.");
|
RunInMountNamespaceThread thread(tmpdir.path(), mntdir.path());
|
thread.Start();
|
const pid_t pid = getpid();
|
const pid_t tid = thread.tid();
|
|
const string tmpfile = tmpdir.path() + "file_in_namespace";
|
const string tmpfile_in_ns = mntdir.path() + "file_in_namespace";
|
InitializeLibelf();
|
testing::WriteElfWithBuildid(tmpfile, ".note.gnu.build-id",
|
"\xde\xad\xbe\xef");
|
// It's a trap! If "baadf00d" is seen, we read the wrong file.
|
testing::WriteElfWithBuildid(tmpfile_in_ns, ".note.gnu.build-id",
|
"\xba\xad\xf0\x0d");
|
struct stat tmp_stat;
|
ASSERT_EQ(stat(tmpfile.c_str(), &tmp_stat), 0);
|
|
// Create perf.data
|
std::stringstream input;
|
|
// header
|
testing::ExamplePipedPerfDataFileHeader().WriteTo(&input);
|
|
// data
|
|
// PERF_RECORD_HEADER_ATTR
|
testing::ExamplePerfEventAttrEvent_Hardware(PERF_SAMPLE_IP | PERF_SAMPLE_TID,
|
true /*sample_id_all*/)
|
.WriteTo(&input);
|
|
// PERF_RECORD_MMAP2
|
// - Process doesn't exist, but file exists in our own namespace.
|
testing::ExampleMmap2Event(pid, pid, 0x1c1000, 0x1000, 0, tmpfile,
|
testing::SampleInfo().Tid(pid + 10, tid + 1))
|
.WithDeviceInfo(major(tmp_stat.st_dev), minor(tmp_stat.st_dev),
|
tmp_stat.st_ino)
|
.WriteTo(&input); // 0
|
|
// PERF_RECORD_SAMPLE
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x00000000001c1000).Tid(pid))
|
.WriteTo(&input); // 1
|
|
//
|
// Parse input.
|
//
|
|
PerfReader reader;
|
EXPECT_TRUE(reader.ReadFromString(input.str()));
|
|
PerfParserOptions options;
|
options.read_missing_buildids = true;
|
options.sample_mapping_percentage_threshold = 0;
|
PerfParser parser(&reader, options);
|
EXPECT_TRUE(parser.ParseRawEvents());
|
|
EXPECT_EQ(1, parser.stats().num_mmap_events);
|
EXPECT_EQ(1, parser.stats().num_sample_events);
|
EXPECT_EQ(1, parser.stats().num_sample_events_mapped);
|
|
const std::vector<ParsedEvent> &events = parser.parsed_events();
|
ASSERT_EQ(2, events.size());
|
|
EXPECT_EQ(tmpfile, events[1].dso_and_offset.dso_name());
|
// Finds file in root FS.
|
EXPECT_EQ("deadbeef", events[1].dso_and_offset.build_id());
|
|
thread.Join();
|
}
|
|
// Root task <pid>/<pid> Filesystem:
|
// "/tmp/quipper_tmp.../file_in_namespace" buildid: deadbeef ino: X
|
// "/tmp/quipper_mnt.../file_in_namespace" buildid: baadf00d ino: Y
|
// Container task <pid>/<tid> Filesystem:
|
// "/tmp/quipper_tmp.../file_in_namespace" buildid: deadbeef ino: X
|
// * "/tmp/quipper_mnt.../file_in_namespace" buildid: deadbeef ino: X
|
// <path> = marked with *
|
// MMAP2: <pid>/<tid>, <path>, ino: X+1
|
// Reject (wrong inode): /proc/<tid>/root/<path>
|
// Reject (wrong inode): /proc/<pid>/root/<path>
|
// Reject (wrong inode): /<path>
|
// Expected buildid for <path>: ""
|
TEST(PerfParserTest, ReadsBuildidsInMountNamespace_TriesRootFsRejectsInode) {
|
if (!HaveCapability(CAP_SYS_ADMIN)) return; // Skip test.
|
ScopedTempDir tmpdir("/tmp/quipper_tmp.");
|
ScopedTempDir mntdir("/tmp/quipper_mnt.");
|
RunInMountNamespaceThread thread(tmpdir.path(), mntdir.path());
|
thread.Start();
|
const pid_t pid = getpid();
|
const pid_t tid = thread.tid();
|
|
const string tmpfile = tmpdir.path() + "file_in_namespace";
|
const string tmpfile_in_ns = mntdir.path() + "file_in_namespace";
|
InitializeLibelf();
|
testing::WriteElfWithBuildid(tmpfile, ".note.gnu.build-id",
|
"\xde\xad\xbe\xef");
|
// It's a trap! If "baadf00d" is seen, we read the wrong file.
|
testing::WriteElfWithBuildid(tmpfile_in_ns, ".note.gnu.build-id",
|
"\xba\xad\xf0\x0d");
|
struct stat tmp_stat;
|
struct stat tmp_in_ns_stat;
|
ASSERT_EQ(stat(tmpfile.c_str(), &tmp_stat), 0);
|
ASSERT_EQ(stat(tmpfile_in_ns.c_str(), &tmp_in_ns_stat), 0);
|
// inodes are often issued sequentially, so go backwards rather than forwards.
|
const ino_t bad_ino = tmp_stat.st_ino - 1;
|
ASSERT_NE(bad_ino, tmp_in_ns_stat.st_ino);
|
|
// Create perf.data
|
std::stringstream input;
|
|
// header
|
testing::ExamplePipedPerfDataFileHeader().WriteTo(&input);
|
|
// data
|
|
// PERF_RECORD_HEADER_ATTR
|
testing::ExamplePerfEventAttrEvent_Hardware(PERF_SAMPLE_IP | PERF_SAMPLE_TID,
|
true /*sample_id_all*/)
|
.WriteTo(&input);
|
|
// PERF_RECORD_MMAP2
|
// - Process doesn't exist, but file exists in our own namespace.
|
testing::ExampleMmap2Event(pid, pid, 0x1c1000, 0x1000, 0, tmpfile_in_ns,
|
testing::SampleInfo().Tid(pid, tid))
|
.WithDeviceInfo(major(tmp_stat.st_dev), minor(tmp_stat.st_dev), bad_ino)
|
.WriteTo(&input); // 0
|
|
// PERF_RECORD_SAMPLE
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x00000000001c1000).Tid(pid))
|
.WriteTo(&input); // 1
|
|
//
|
// Parse input.
|
//
|
|
PerfReader reader;
|
EXPECT_TRUE(reader.ReadFromString(input.str()));
|
|
PerfParserOptions options;
|
options.read_missing_buildids = true;
|
options.sample_mapping_percentage_threshold = 0;
|
PerfParser parser(&reader, options);
|
EXPECT_TRUE(parser.ParseRawEvents());
|
|
EXPECT_EQ(1, parser.stats().num_mmap_events);
|
EXPECT_EQ(1, parser.stats().num_sample_events);
|
EXPECT_EQ(1, parser.stats().num_sample_events_mapped);
|
|
const std::vector<ParsedEvent> &events = parser.parsed_events();
|
ASSERT_EQ(2, events.size());
|
|
EXPECT_EQ(tmpfile_in_ns, events[1].dso_and_offset.dso_name());
|
// Wrong inode, so rejects all candidates.
|
EXPECT_EQ("", events[1].dso_and_offset.build_id());
|
|
thread.Join();
|
}
|
|
// Root task <pid>/<pid> Filesystem:
|
// "/tmp/quipper_tmp.../file_in_namespace" buildid: deadbeef ino: X
|
// * "/tmp/quipper_mnt.../file_in_namespace" buildid: baadf00d ino: Y
|
// Container task <pid>/<tid> Filesystem:
|
// "/tmp/quipper_tmp.../file_in_namespace" buildid: deadbeef ino: X
|
// * "/tmp/quipper_mnt.../file_in_namespace" buildid: deadbeef ino: X
|
// <path> = marked with *
|
// MMAP: <pid+10>/<tid+1>, <path>, ino: Not available
|
// Reject (not found): /proc/<tid+1>/root/<path>
|
// Reject (not found): /proc/<pid+10>/root/<path>
|
// Accept (falsely): /<path>
|
// Expected buildid for <path>: "baadf00d" (even though incorrect)
|
TEST(PerfParserTest, ReadsBuildidsInMountNamespace_TriesRootFsNoInodeToReject) {
|
if (!HaveCapability(CAP_SYS_ADMIN)) return; // Skip test.
|
ScopedTempDir tmpdir("/tmp/quipper_tmp.");
|
ScopedTempDir mntdir("/tmp/quipper_mnt.");
|
RunInMountNamespaceThread thread(tmpdir.path(), mntdir.path());
|
thread.Start();
|
const pid_t pid = getpid();
|
const pid_t tid = thread.tid();
|
|
const string tmpfile = tmpdir.path() + "file_in_namespace";
|
const string tmpfile_in_ns = mntdir.path() + "file_in_namespace";
|
InitializeLibelf();
|
testing::WriteElfWithBuildid(tmpfile, ".note.gnu.build-id",
|
"\xde\xad\xf0\x0d");
|
// It's a trap! If "baadf00d" is seen, we read the wrong file.
|
testing::WriteElfWithBuildid(tmpfile_in_ns, ".note.gnu.build-id",
|
"\xba\xad\xf0\x0d");
|
struct stat tmp_stat;
|
ASSERT_EQ(stat(tmpfile.c_str(), &tmp_stat), 0);
|
|
// Create perf.data
|
std::stringstream input;
|
|
// header
|
testing::ExamplePipedPerfDataFileHeader().WriteTo(&input);
|
|
// data
|
|
// PERF_RECORD_HEADER_ATTR
|
testing::ExamplePerfEventAttrEvent_Hardware(PERF_SAMPLE_IP | PERF_SAMPLE_TID,
|
true /*sample_id_all*/)
|
.WriteTo(&input);
|
|
// PERF_RECORD_MMAP
|
// - Process & thread don't exist, but file exists in our own namespace.
|
testing::ExampleMmapEvent(pid, 0x1c1000, 0x1000, 0, tmpfile_in_ns,
|
testing::SampleInfo().Tid(pid + 10, tid + 1))
|
.WriteTo(&input); // 0
|
|
// PERF_RECORD_SAMPLE
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x00000000001c1000).Tid(pid))
|
.WriteTo(&input); // 1
|
|
//
|
// Parse input.
|
//
|
|
PerfReader reader;
|
EXPECT_TRUE(reader.ReadFromString(input.str()));
|
|
PerfParserOptions options;
|
options.read_missing_buildids = true;
|
options.sample_mapping_percentage_threshold = 0;
|
PerfParser parser(&reader, options);
|
EXPECT_TRUE(parser.ParseRawEvents());
|
|
EXPECT_EQ(1, parser.stats().num_mmap_events);
|
EXPECT_EQ(1, parser.stats().num_sample_events);
|
EXPECT_EQ(1, parser.stats().num_sample_events_mapped);
|
|
const std::vector<ParsedEvent> &events = parser.parsed_events();
|
ASSERT_EQ(2, events.size());
|
|
EXPECT_EQ(tmpfile_in_ns, events[1].dso_and_offset.dso_name());
|
// We'll read the wrong file b/c we couldn't reject based on inode:
|
EXPECT_EQ("baadf00d", events[1].dso_and_offset.build_id());
|
|
thread.Join();
|
}
|
|
// Root task <pid>/<pid> Filesystem:
|
// "/tmp/quipper_tmp.../file_in_namespace" buildid: deadbeef ino: X
|
// * "/tmp/quipper_mnt.../file_in_namespace" buildid: baadf00d ino: Y
|
// Container task <pid>/<tid> Filesystem:
|
// "/tmp/quipper_tmp.../file_in_namespace" buildid: deadbeef ino: X
|
// * "/tmp/quipper_mnt.../file_in_namespace" buildid: deadbeef ino: X
|
// <path> = marked with *
|
// MMAP2(0): <pid>/<tid>, <path>, <maj+1>/<min>, ino: X
|
// MMAP2(1): <pid>/<tid>, <path>, <maj>/<min+1>, ino: X
|
// MMAP2(2): <pid>/<tid>, <path>, <maj>/<min>, ino: X+1
|
// SAMPLE(3): <pid>/<tid>, addr in MMAP2(0)
|
// SAMPLE(4): <pid>/<tid>, addr in MMAP2(1)
|
// SAMPLE(5): <pid>/<tid>, addr in MMAP2(2)
|
// Expected buildid for <path>: ""
|
//
|
// with multiple device/ino numbers. This is really a shortcoming of perf--
|
// it can only associate a buildid with a path. If the same path exists in
|
// multiple containers but refers to different files (device/inode), then
|
// it's hard to know what to do. Similarly, PerfParser associates a DSO name
|
// (path) with a single DSOInfo and device/inode info therein, although it
|
// tracks all threads the DSO name was seen in. This test is set up such that
|
// all MMAPs should be rejected, but in truth PerfParser only compares the
|
// device/inode of the file against the device/inode of one of the MMAPs.
|
// A better thing to do might be to track a
|
// map<tuple<maj,min,ino,path>, DSOInfo>, but even so, it will be impossible
|
// to store unambiguously in perf.data.
|
TEST(PerfParserTest, ReadsBuildidsInMountNamespace_DifferentDevOrIno) {
|
if (!HaveCapability(CAP_SYS_ADMIN)) return; // Skip test.
|
ScopedTempDir tmpdir("/tmp/quipper_tmp.");
|
ScopedTempDir mntdir("/tmp/quipper_mnt.");
|
RunInMountNamespaceThread thread(tmpdir.path(), mntdir.path());
|
thread.Start();
|
const pid_t pid = getpid();
|
const pid_t tid = thread.tid();
|
|
const string tmpfile = tmpdir.path() + "file_in_namespace";
|
const string tmpfile_in_ns = mntdir.path() + "file_in_namespace";
|
InitializeLibelf();
|
testing::WriteElfWithBuildid(tmpfile, ".note.gnu.build-id",
|
"\xde\xad\xf0\x0d");
|
// It's a trap! If "baadf00d" is seen, we read the wrong file.
|
testing::WriteElfWithBuildid(tmpfile_in_ns, ".note.gnu.build-id",
|
"\xba\xad\xf0\x0d");
|
struct stat tmp_stat;
|
struct stat tmp_in_ns_stat;
|
ASSERT_EQ(stat(tmpfile.c_str(), &tmp_stat), 0);
|
ASSERT_EQ(stat(tmpfile_in_ns.c_str(), &tmp_in_ns_stat), 0);
|
// inodes are often issued sequentially, so go backwards rather than forwards.
|
const ino_t bad_ino = tmp_stat.st_ino - 1;
|
ASSERT_NE(bad_ino, tmp_in_ns_stat.st_ino);
|
|
// Create perf.data
|
std::stringstream input;
|
|
// header
|
testing::ExamplePipedPerfDataFileHeader().WriteTo(&input);
|
|
// data
|
|
// PERF_RECORD_HEADER_ATTR
|
testing::ExamplePerfEventAttrEvent_Hardware(PERF_SAMPLE_IP | PERF_SAMPLE_TID,
|
true /*sample_id_all*/)
|
.WriteTo(&input);
|
|
// PERF_RECORD_MMAP2
|
// - Wrong major number
|
testing::ExampleMmap2Event(pid, tid, 0x1c1000, 0x1000, 0, tmpfile_in_ns,
|
testing::SampleInfo().Tid(pid, tid))
|
.WithDeviceInfo(major(tmp_stat.st_dev) + 1, minor(tmp_stat.st_dev),
|
tmp_stat.st_ino)
|
.WriteTo(&input); // 0
|
// - Wrong minor number
|
testing::ExampleMmap2Event(pid, tid, 0x1c2000, 0x1000, 0, tmpfile_in_ns,
|
testing::SampleInfo().Tid(pid, tid))
|
.WithDeviceInfo(major(tmp_stat.st_dev), minor(tmp_stat.st_dev) + 1,
|
tmp_stat.st_ino)
|
.WriteTo(&input); // 1
|
// - Wrong inode number
|
testing::ExampleMmap2Event(pid, tid, 0x1c3000, 0x1000, 0, tmpfile_in_ns,
|
testing::SampleInfo().Tid(pid, tid))
|
.WithDeviceInfo(major(tmp_stat.st_dev), minor(tmp_stat.st_dev),
|
bad_ino)
|
.WriteTo(&input); // 2
|
|
// PERF_RECORD_SAMPLE
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x00000000001c1000).Tid(pid, tid))
|
.WriteTo(&input); // 3
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x00000000001c2000).Tid(pid, tid))
|
.WriteTo(&input); // 4
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x00000000001c3000).Tid(pid, tid))
|
.WriteTo(&input); // 5
|
|
//
|
// Parse input.
|
//
|
|
PerfReader reader;
|
EXPECT_TRUE(reader.ReadFromString(input.str()));
|
|
PerfParserOptions options;
|
options.read_missing_buildids = true;
|
options.sample_mapping_percentage_threshold = 0;
|
PerfParser parser(&reader, options);
|
EXPECT_TRUE(parser.ParseRawEvents());
|
|
EXPECT_EQ(3, parser.stats().num_mmap_events);
|
EXPECT_EQ(3, parser.stats().num_sample_events);
|
EXPECT_EQ(3, parser.stats().num_sample_events_mapped);
|
|
const std::vector<ParsedEvent> &events = parser.parsed_events();
|
ASSERT_EQ(6, events.size());
|
|
// Buildid should not be found for any of the samples.
|
for (int i : {3, 4, 5}) {
|
EXPECT_EQ(tmpfile_in_ns, events[i].dso_and_offset.dso_name());
|
EXPECT_EQ("", events[i].dso_and_offset.build_id());
|
}
|
|
thread.Join();
|
}
|
|
TEST(PerfParserTest, OverwriteBuildidIfAlreadyKnown) {
|
ScopedTempDir tmpdir("/tmp/quipper_tmp.");
|
const string known_file = tmpdir.path() + "buildid_already_known";
|
const string known_file_to_overwrite =
|
tmpdir.path() + "buildid_already_known_overwrite";
|
const string unknown_file = tmpdir.path() + "buildid_not_known";
|
InitializeLibelf();
|
testing::WriteElfWithBuildid(known_file_to_overwrite, ".note.gnu.build-id",
|
"\xf0\x01\x57\xea");
|
testing::WriteElfWithBuildid(unknown_file, ".note.gnu.build-id",
|
"\xc0\x01\xd0\x0d");
|
|
std::stringstream input;
|
|
// header
|
testing::ExamplePipedPerfDataFileHeader().WriteTo(&input);
|
|
// data
|
|
// PERF_RECORD_HEADER_ATTR
|
testing::ExamplePerfEventAttrEvent_Hardware(PERF_SAMPLE_IP | PERF_SAMPLE_TID,
|
true /*sample_id_all*/)
|
.WriteTo(&input);
|
|
// PERF_RECORD_MMAP
|
testing::ExampleMmapEvent(1001, 0x1c1000, 0x1000, 0, known_file,
|
testing::SampleInfo().Tid(1001))
|
.WriteTo(&input); // 0
|
// becomes: 0x0000, 0x1000, 0
|
testing::ExampleMmapEvent(1001, 0x1c2000, 0x2000, 0, known_file_to_overwrite,
|
testing::SampleInfo().Tid(1001))
|
.WriteTo(&input); // 1
|
// becomes: 0x1000, 0x2000, 0
|
testing::ExampleMmapEvent(1001, 0x1c4000, 0x2000, 0x2000, unknown_file,
|
testing::SampleInfo().Tid(1001))
|
.WriteTo(&input); // 2
|
// becomes: 0x3000, 0x2000, 0x2000
|
|
// PERF_RECORD_HEADER_BUILDID // N/A
|
{
|
string build_id_filename(known_file);
|
build_id_filename.resize(Align<u64>(known_file.size())); // null-pad
|
const size_t event_size =
|
sizeof(struct build_id_event) + build_id_filename.size();
|
const struct build_id_event event = {
|
.header =
|
{
|
.type = PERF_RECORD_HEADER_BUILD_ID,
|
.misc = 0,
|
.size = static_cast<u16>(event_size),
|
},
|
.pid = -1,
|
.build_id = {0xde, 0xad, 0xbe, 0xef},
|
};
|
input.write(reinterpret_cast<const char *>(&event), sizeof(event));
|
input.write(build_id_filename.data(), build_id_filename.size());
|
}
|
|
// PERF_RECORD_HEADER_BUILDID // N/A
|
{
|
string build_id_filename(known_file_to_overwrite);
|
// null-pad
|
build_id_filename.resize(Align<u64>(known_file_to_overwrite.size()));
|
const size_t event_size =
|
sizeof(struct build_id_event) + build_id_filename.size();
|
const struct build_id_event event = {
|
.header =
|
{
|
.type = PERF_RECORD_HEADER_BUILD_ID,
|
.misc = 0,
|
.size = static_cast<u16>(event_size),
|
},
|
.pid = -1,
|
.build_id = {0xca, 0xfe, 0xba, 0xbe},
|
};
|
input.write(reinterpret_cast<const char *>(&event), sizeof(event));
|
input.write(build_id_filename.data(), build_id_filename.size());
|
}
|
|
// PERF_RECORD_SAMPLE
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x00000000001c100a).Tid(1001))
|
.WriteTo(&input); // 3
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x00000000001c300b).Tid(1001))
|
.WriteTo(&input); // 4
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x00000000001c400c).Tid(1001))
|
.WriteTo(&input); // 5
|
|
//
|
// Parse input.
|
//
|
|
PerfReader reader;
|
EXPECT_TRUE(reader.ReadFromString(input.str()));
|
|
PerfParserOptions options;
|
options.read_missing_buildids = true;
|
options.sample_mapping_percentage_threshold = 0;
|
PerfParser parser(&reader, options);
|
EXPECT_TRUE(parser.ParseRawEvents());
|
|
EXPECT_EQ(3, parser.stats().num_mmap_events);
|
EXPECT_EQ(3, parser.stats().num_sample_events);
|
EXPECT_EQ(3, parser.stats().num_sample_events_mapped);
|
|
const std::vector<ParsedEvent> &events = parser.parsed_events();
|
ASSERT_EQ(6, events.size());
|
|
EXPECT_EQ(known_file, events[3].dso_and_offset.dso_name());
|
EXPECT_EQ("deadbeef00000000000000000000000000000000",
|
events[3].dso_and_offset.build_id());
|
EXPECT_EQ(known_file_to_overwrite, events[4].dso_and_offset.dso_name());
|
EXPECT_EQ("f00157ea", events[4].dso_and_offset.build_id());
|
EXPECT_EQ(unknown_file, events[5].dso_and_offset.dso_name());
|
EXPECT_EQ("c001d00d", events[5].dso_and_offset.build_id());
|
}
|
|
TEST(PerfParserTest, OnlyReadsBuildidIfSampled) {
|
ScopedTempDir tmpdir("/tmp/quipper_tmp.");
|
const string unknown_file = tmpdir.path() + "buildid_not_known";
|
InitializeLibelf();
|
testing::WriteElfWithBuildid(unknown_file, ".note.gnu.build-id",
|
"\xc0\x01\xd0\x0d");
|
|
std::stringstream input;
|
|
// header
|
testing::ExamplePipedPerfDataFileHeader().WriteTo(&input);
|
|
// data
|
|
// PERF_RECORD_HEADER_ATTR
|
testing::ExamplePerfEventAttrEvent_Hardware(PERF_SAMPLE_IP | PERF_SAMPLE_TID,
|
true /*sample_id_all*/)
|
.WriteTo(&input);
|
|
// PERF_RECORD_MMAP
|
testing::ExampleMmapEvent(1001, 0x1c1000, 0x1000, 0, unknown_file,
|
testing::SampleInfo().Tid(1001))
|
.WriteTo(&input); // 0
|
// becomes: 0x0000, 0x1000, 0
|
|
// PERF_RECORD_SAMPLE
|
// - Sample outside mmap
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x00000000001c300a).Tid(1001))
|
.WriteTo(&input); // 1
|
|
//
|
// Parse input.
|
//
|
|
PerfReader reader;
|
EXPECT_TRUE(reader.ReadFromString(input.str()));
|
|
PerfParserOptions options;
|
options.read_missing_buildids = true;
|
options.sample_mapping_percentage_threshold = 0;
|
PerfParser parser(&reader, options);
|
EXPECT_TRUE(parser.ParseRawEvents());
|
|
EXPECT_EQ(1, parser.stats().num_mmap_events);
|
EXPECT_EQ(1, parser.stats().num_sample_events);
|
EXPECT_EQ(0, parser.stats().num_sample_events_mapped);
|
|
const std::vector<ParsedEvent> &events = parser.parsed_events();
|
ASSERT_EQ(2, events.size());
|
|
EXPECT_EQ("", events[1].dso_and_offset.dso_name());
|
EXPECT_EQ("", events[1].dso_and_offset.build_id());
|
|
std::map<string, string> filenames_to_build_ids;
|
reader.GetFilenamesToBuildIDs(&filenames_to_build_ids);
|
auto it = filenames_to_build_ids.find(unknown_file);
|
EXPECT_EQ(filenames_to_build_ids.end(), it) << it->first << " " << it->second;
|
}
|
|
TEST(PerfParserTest, HandlesFinishedRoundEventsAndSortsByTime) {
|
// For now at least, we are ignoring PERF_RECORD_FINISHED_ROUND events.
|
|
std::stringstream input;
|
|
// header
|
testing::ExamplePipedPerfDataFileHeader().WriteTo(&input);
|
|
// data
|
|
// PERF_RECORD_HEADER_ATTR
|
testing::ExamplePerfEventAttrEvent_Hardware(
|
PERF_SAMPLE_IP | PERF_SAMPLE_TID | PERF_SAMPLE_TIME,
|
true /*sample_id_all*/)
|
.WriteTo(&input);
|
|
// PERF_RECORD_MMAP
|
testing::ExampleMmapEvent(1001, 0x1c1000, 0x1000, 0, "/usr/lib/foo.so",
|
testing::SampleInfo().Tid(1001).Time(12300010))
|
.WriteTo(&input);
|
// becomes: 0x0000, 0x1000, 0
|
|
// PERF_RECORD_SAMPLE
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x00000000001c1000).Tid(1001).Time(12300020))
|
.WriteTo(&input); // 1
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x00000000001c1000).Tid(1001).Time(12300030))
|
.WriteTo(&input); // 2
|
// PERF_RECORD_FINISHED_ROUND
|
testing::FinishedRoundEvent().WriteTo(&input); // N/A
|
|
// PERF_RECORD_SAMPLE
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x00000000001c1000).Tid(1001).Time(12300050))
|
.WriteTo(&input); // 3
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x00000000001c1000).Tid(1001).Time(12300040))
|
.WriteTo(&input); // 4
|
// PERF_RECORD_FINISHED_ROUND
|
testing::FinishedRoundEvent().WriteTo(&input); // N/A
|
|
//
|
// Parse input.
|
//
|
|
PerfReader reader;
|
EXPECT_TRUE(reader.ReadFromString(input.str()));
|
|
PerfParserOptions options;
|
options.sample_mapping_percentage_threshold = 0;
|
options.sort_events_by_time = true;
|
PerfParser parser(&reader, options);
|
EXPECT_TRUE(parser.ParseRawEvents());
|
|
EXPECT_EQ(1, parser.stats().num_mmap_events);
|
EXPECT_EQ(4, parser.stats().num_sample_events);
|
EXPECT_EQ(4, parser.stats().num_sample_events_mapped);
|
|
const std::vector<ParsedEvent> &events = parser.parsed_events();
|
ASSERT_EQ(5, events.size());
|
|
EXPECT_EQ(PERF_RECORD_MMAP, events[0].event_ptr->header().type());
|
EXPECT_EQ(PERF_RECORD_SAMPLE, events[1].event_ptr->header().type());
|
EXPECT_EQ(12300020, events[1].event_ptr->sample_event().sample_time_ns());
|
EXPECT_EQ(PERF_RECORD_SAMPLE, events[2].event_ptr->header().type());
|
EXPECT_EQ(12300030, events[2].event_ptr->sample_event().sample_time_ns());
|
EXPECT_EQ(PERF_RECORD_SAMPLE, events[3].event_ptr->header().type());
|
EXPECT_EQ(12300040, events[3].event_ptr->sample_event().sample_time_ns());
|
EXPECT_EQ(PERF_RECORD_SAMPLE, events[4].event_ptr->header().type());
|
EXPECT_EQ(12300050, events[4].event_ptr->sample_event().sample_time_ns());
|
}
|
|
TEST(PerfParserTest, MmapCoversEntireAddressSpace) {
|
std::stringstream input;
|
|
// header
|
testing::ExamplePipedPerfDataFileHeader().WriteTo(&input);
|
|
// PERF_RECORD_HEADER_ATTR
|
testing::ExamplePerfEventAttrEvent_Hardware(PERF_SAMPLE_IP | PERF_SAMPLE_TID,
|
true /*sample_id_all*/)
|
.WriteTo(&input);
|
|
// PERF_RECORD_MMAP, a kernel mapping that covers the whole space.
|
const uint32_t kKernelMmapPid = UINT32_MAX;
|
testing::ExampleMmapEvent(kKernelMmapPid, 0, UINT64_MAX, 0,
|
"[kernel.kallsyms]_text",
|
testing::SampleInfo().Tid(kKernelMmapPid, 0))
|
.WriteTo(&input);
|
|
// PERF_RECORD_MMAP, a shared object library.
|
testing::ExampleMmapEvent(1234, 0x7f008e000000, 0x2000000, 0,
|
"/usr/lib/libfoo.so",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
|
// PERF_RECORD_SAMPLE, within library.
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x7f008e123456).Tid(1234, 1235))
|
.WriteTo(&input);
|
// PERF_RECORD_SAMPLE, within kernel.
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x8000819e).Tid(1234, 1235))
|
.WriteTo(&input);
|
// PERF_RECORD_SAMPLE, within library.
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x7f008fdeadbe).Tid(1234, 1235))
|
.WriteTo(&input);
|
// PERF_RECORD_SAMPLE, within kernel.
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0xffffffff8100cafe).Tid(1234, 1235))
|
.WriteTo(&input);
|
|
//
|
// Parse input.
|
//
|
|
PerfReader reader;
|
EXPECT_TRUE(reader.ReadFromString(input.str()));
|
|
PerfParserOptions options;
|
options.do_remap = true;
|
PerfParser parser(&reader, options);
|
EXPECT_TRUE(parser.ParseRawEvents());
|
|
EXPECT_EQ(2, parser.stats().num_mmap_events);
|
EXPECT_EQ(4, parser.stats().num_sample_events);
|
EXPECT_EQ(4, parser.stats().num_sample_events_mapped);
|
|
const std::vector<ParsedEvent> &events = parser.parsed_events();
|
ASSERT_EQ(6, events.size());
|
|
EXPECT_EQ(PERF_RECORD_MMAP, events[0].event_ptr->header().type());
|
EXPECT_EQ("[kernel.kallsyms]_text",
|
events[0].event_ptr->mmap_event().filename());
|
EXPECT_EQ(PERF_RECORD_MMAP, events[1].event_ptr->header().type());
|
EXPECT_EQ("/usr/lib/libfoo.so", events[1].event_ptr->mmap_event().filename());
|
|
// Sample from library.
|
EXPECT_EQ(PERF_RECORD_SAMPLE, events[2].event_ptr->header().type());
|
EXPECT_EQ("/usr/lib/libfoo.so", events[2].dso_and_offset.dso_name());
|
EXPECT_EQ(0x123456, events[2].dso_and_offset.offset());
|
|
// Sample from kernel.
|
EXPECT_EQ(PERF_RECORD_SAMPLE, events[3].event_ptr->header().type());
|
EXPECT_EQ("[kernel.kallsyms]_text", events[3].dso_and_offset.dso_name());
|
EXPECT_EQ(0x8000819e, events[3].dso_and_offset.offset());
|
|
// Sample from library.
|
EXPECT_EQ(PERF_RECORD_SAMPLE, events[4].event_ptr->header().type());
|
EXPECT_EQ("/usr/lib/libfoo.so", events[4].dso_and_offset.dso_name());
|
EXPECT_EQ(0x1deadbe, events[4].dso_and_offset.offset());
|
|
// Sample from kernel.
|
EXPECT_EQ(PERF_RECORD_SAMPLE, events[5].event_ptr->header().type());
|
EXPECT_EQ("[kernel.kallsyms]_text", events[5].dso_and_offset.dso_name());
|
EXPECT_EQ(0xffffffff8100cafe, events[5].dso_and_offset.offset());
|
}
|
|
TEST(PerfParserTest, HugePagesMappings) {
|
std::stringstream input;
|
|
// header
|
testing::ExamplePipedPerfDataFileHeader().WriteTo(&input);
|
|
// PERF_RECORD_HEADER_ATTR
|
testing::ExamplePerfEventAttrEvent_Hardware(PERF_SAMPLE_IP | PERF_SAMPLE_TID,
|
true /*sample_id_all*/)
|
.WriteTo(&input);
|
|
// PERF_RECORD_MMAP, a normal mapping.
|
testing::ExampleMmapEvent(1234, 0x40000000, 0x18000, 0, "/usr/lib/libfoo.so",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
|
// PERF_RECORD_SAMPLE, within library.
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x40000100).Tid(1234, 1235))
|
.WriteTo(&input);
|
|
// Split Chrome mapping #1, with a huge pages section in the middle.
|
testing::ExampleMmapEvent(1234, 0x40018000, 0x1e8000, 0,
|
"/opt/google/chrome/chrome",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
testing::ExampleMmapEvent(1234, 0x40200000, 0x1c00000, 0, "//anon",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
testing::ExampleMmapEvent(1234, 0x41e00000, 0x4000000, 0x1de8000,
|
"/opt/google/chrome/chrome",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
|
// Split Chrome mapping #2, starting with a huge pages section (no preceding
|
// normal mapping).
|
testing::ExampleMmapEvent(2345, 0x45e00000, 0x1e00000, 0, "//anon",
|
testing::SampleInfo().Tid(2345, 2346))
|
.WriteTo(&input);
|
testing::ExampleMmapEvent(2345, 0x47c00000, 0x4000000, 0x1e00000,
|
"/opt/google/chrome/chrome",
|
testing::SampleInfo().Tid(2345, 2346))
|
.WriteTo(&input);
|
|
// PERF_RECORD_SAMPLE, within Chrome #1 (before huge pages mapping).
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x40018300).Tid(1234, 1235))
|
.WriteTo(&input);
|
// PERF_RECORD_SAMPLE, within Chrome #1 (within huge pages mapping).
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x40020400).Tid(1234, 1235))
|
.WriteTo(&input);
|
// PERF_RECORD_SAMPLE, within Chrome #1 (after huge pages mapping).
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x41e20500).Tid(1234, 1235))
|
.WriteTo(&input);
|
|
// PERF_RECORD_SAMPLE, within library.
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x40000700).Tid(1234, 1235))
|
.WriteTo(&input);
|
|
// PERF_RECORD_SAMPLE, within Chrome #2 (within huge pages mapping).
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x45e01300).Tid(2345, 2346))
|
.WriteTo(&input);
|
// PERF_RECORD_SAMPLE, within Chrome #2 (after huge pages mapping).
|
testing::ExamplePerfSampleEvent(
|
testing::SampleInfo().Ip(0x45e02f00).Tid(2345, 2346))
|
.WriteTo(&input);
|
|
//
|
// Parse input.
|
//
|
|
PerfReader reader;
|
EXPECT_TRUE(reader.ReadFromString(input.str()));
|
|
PerfParserOptions options;
|
options.deduce_huge_page_mappings = true;
|
options.combine_mappings = true;
|
PerfParser parser(&reader, options);
|
EXPECT_TRUE(parser.ParseRawEvents());
|
|
EXPECT_EQ(3, parser.stats().num_mmap_events);
|
EXPECT_EQ(7, parser.stats().num_sample_events);
|
EXPECT_EQ(7, parser.stats().num_sample_events_mapped);
|
|
const std::vector<ParsedEvent> &events = parser.parsed_events();
|
ASSERT_EQ(10, events.size());
|
|
EXPECT_EQ(PERF_RECORD_MMAP, events[0].event_ptr->header().type());
|
EXPECT_EQ("/usr/lib/libfoo.so", events[0].event_ptr->mmap_event().filename());
|
EXPECT_EQ(0x40000000, events[0].event_ptr->mmap_event().start());
|
EXPECT_EQ(0x18000, events[0].event_ptr->mmap_event().len());
|
EXPECT_EQ(0x0, events[0].event_ptr->mmap_event().pgoff());
|
|
// Sample from library.
|
EXPECT_EQ(PERF_RECORD_SAMPLE, events[1].event_ptr->header().type());
|
EXPECT_EQ("/usr/lib/libfoo.so", events[1].dso_and_offset.dso_name());
|
EXPECT_EQ(0x100, events[1].dso_and_offset.offset());
|
|
// The split Chrome mappings should have been combined.
|
EXPECT_EQ(PERF_RECORD_MMAP, events[2].event_ptr->header().type());
|
EXPECT_EQ("/opt/google/chrome/chrome",
|
events[2].event_ptr->mmap_event().filename());
|
EXPECT_EQ(0x40018000, events[2].event_ptr->mmap_event().start());
|
EXPECT_EQ(0x5de8000, events[2].event_ptr->mmap_event().len());
|
EXPECT_EQ(0x0, events[2].event_ptr->mmap_event().pgoff());
|
|
EXPECT_EQ(PERF_RECORD_MMAP, events[3].event_ptr->header().type());
|
EXPECT_EQ("/opt/google/chrome/chrome",
|
events[3].event_ptr->mmap_event().filename());
|
EXPECT_EQ(0x45e00000, events[3].event_ptr->mmap_event().start());
|
EXPECT_EQ(0x5e00000, events[3].event_ptr->mmap_event().len());
|
EXPECT_EQ(0x0, events[3].event_ptr->mmap_event().pgoff());
|
|
// Sample from Chrome (before huge pages mapping).
|
EXPECT_EQ(PERF_RECORD_SAMPLE, events[4].event_ptr->header().type());
|
EXPECT_EQ("/opt/google/chrome/chrome", events[4].dso_and_offset.dso_name());
|
EXPECT_EQ(0x300, events[4].dso_and_offset.offset());
|
|
// Sample from Chrome (within huge pages mapping).
|
EXPECT_EQ(PERF_RECORD_SAMPLE, events[5].event_ptr->header().type());
|
EXPECT_EQ("/opt/google/chrome/chrome", events[5].dso_and_offset.dso_name());
|
EXPECT_EQ(0x8400, events[5].dso_and_offset.offset());
|
|
// Sample from Chrome (after huge pages mapping).
|
EXPECT_EQ(PERF_RECORD_SAMPLE, events[6].event_ptr->header().type());
|
EXPECT_EQ("/opt/google/chrome/chrome", events[6].dso_and_offset.dso_name());
|
EXPECT_EQ(0x1e08500, events[6].dso_and_offset.offset());
|
|
// Sample from library.
|
EXPECT_EQ(PERF_RECORD_SAMPLE, events[7].event_ptr->header().type());
|
EXPECT_EQ("/usr/lib/libfoo.so", events[7].dso_and_offset.dso_name());
|
EXPECT_EQ(0x700, events[7].dso_and_offset.offset());
|
|
// Sample from Chrome #2 (within huge pages mapping).
|
EXPECT_EQ(PERF_RECORD_SAMPLE, events[8].event_ptr->header().type());
|
EXPECT_EQ("/opt/google/chrome/chrome", events[8].dso_and_offset.dso_name());
|
EXPECT_EQ(0x1300, events[8].dso_and_offset.offset());
|
|
// Sample from Chrome #2 (after huge pages mapping).
|
EXPECT_EQ(PERF_RECORD_SAMPLE, events[9].event_ptr->header().type());
|
EXPECT_EQ("/opt/google/chrome/chrome", events[9].dso_and_offset.dso_name());
|
EXPECT_EQ(0x2f00, events[9].dso_and_offset.offset());
|
}
|
|
TEST(PerfParserTest, Regression62446346) {
|
std::stringstream input;
|
|
// header
|
testing::ExamplePipedPerfDataFileHeader().WriteTo(&input);
|
|
// PERF_RECORD_HEADER_ATTR
|
testing::ExamplePerfEventAttrEvent_Hardware(PERF_SAMPLE_IP | PERF_SAMPLE_TID,
|
true /*sample_id_all*/)
|
.WriteTo(&input);
|
|
// Perf infers the filename is "file", but at offset 0 for
|
// hugepage-backed, anonymous mappings.
|
//
|
// vaddr start - vaddr end vaddr-size elf-offset
|
// [0x55a685bfb000-55a685dfb000) (0x200000) @ 0]: file
|
// [0x55a685dfb000-55a687c00000) (0x1e05000) @ 0x200000]: file
|
// [0x55a687c00000-55a6a5200000) (0x1d600000) @ 0]: file
|
// [0x55a6a5200000-55a6a6400000) (0x1200000) @ 0x1f605000]: file
|
// [0x55a6a6400000-55a6a6600000) (0x200000) @ 0]: file
|
// [0x55a6a6600000-55a6a8800000) (0x2200000) @ 0x20a05000]: file
|
// [0x55a6a8800000-55a6a8a00000) (0x200000) @ 0]: file
|
// [0x55a6a8a00000-55a6a90ca000) (0x6ca000) @ 0x22e05000]: file
|
// [0x55a6a90ca000-55a6a90cb000) (0x1000) @ 0x234cf000]: file
|
testing::ExampleMmapEvent(1234, 0x55a685bfb000, 0x200000, 0, "file",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
testing::ExampleMmapEvent(1234, 0x55a685dfb000, 0x1e05000, 0x200000, "file",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
testing::ExampleMmapEvent(1234, 0x55a687c00000, 0x1d600000, 0, "file",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
testing::ExampleMmapEvent(1234, 0x55a6a5200000, 0x1200000, 0x1f605000, "file",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
testing::ExampleMmapEvent(1234, 0x55a6a6400000, 0x200000, 0, "file",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
testing::ExampleMmapEvent(1234, 0x55a6a6600000, 0x2200000, 0x20a05000, "file",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
testing::ExampleMmapEvent(1234, 0x55a6a8800000, 0x200000, 0, "file",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
testing::ExampleMmapEvent(1234, 0x55a6a8a00000, 0x6ca000, 0x22e05000, "file",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
testing::ExampleMmapEvent(1234, 0x55a6a90ca000, 0x1000, 0x234cf000, "file",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
|
//
|
// Parse input.
|
//
|
|
PerfReader reader;
|
EXPECT_TRUE(reader.ReadFromString(input.str()));
|
|
PerfParserOptions options;
|
options.deduce_huge_page_mappings = true;
|
options.combine_mappings = true;
|
PerfParser parser(&reader, options);
|
EXPECT_TRUE(parser.ParseRawEvents());
|
|
EXPECT_EQ(1, parser.stats().num_mmap_events);
|
EXPECT_EQ(0, parser.stats().num_sample_events);
|
EXPECT_EQ(0, parser.stats().num_sample_events_mapped);
|
|
const std::vector<ParsedEvent> &events = parser.parsed_events();
|
|
{
|
PerfDataProto expected;
|
{
|
auto *ev = expected.add_events();
|
ev->mutable_header()->set_type(PERF_RECORD_MMAP);
|
ev->mutable_mmap_event()->set_filename("file");
|
ev->mutable_mmap_event()->set_start(0x55a685bfb000);
|
ev->mutable_mmap_event()->set_len(0x234d0000);
|
ev->mutable_mmap_event()->set_pgoff(0x0);
|
}
|
|
PerfDataProto actual;
|
for (const auto &ev : events) {
|
if (ev.event_ptr == nullptr) {
|
continue;
|
}
|
|
*actual.add_events() = *ev.event_ptr;
|
}
|
|
EXPECT_TRUE(PartiallyEqualsProto(actual, expected));
|
}
|
ASSERT_EQ(1, events.size());
|
|
// Verify the header().size() entry is large enough to deserialize/serialize.
|
for (const auto &ev : events) {
|
malloced_unique_ptr<event_t> e(
|
CallocMemoryForEvent(ev.event_ptr->header().size()));
|
|
PerfSerializer serializer;
|
ASSERT_TRUE(
|
serializer.DeserializeMMapEvent(ev.event_ptr->mmap_event(), e.get()));
|
|
PerfDataProto_MMapEvent roundtrip;
|
ASSERT_TRUE(serializer.SerializeMMapEvent(*e, &roundtrip));
|
// sample_info does not roundtrip through an event_t.
|
EXPECT_TRUE(PartiallyEqualsProto(ev.event_ptr->mmap_event(), roundtrip));
|
}
|
}
|
|
TEST(PerfParserTest, Regression62446346_Perf3_12_0_11) {
|
std::stringstream input;
|
|
// header
|
testing::ExamplePipedPerfDataFileHeader().WriteTo(&input);
|
|
// PERF_RECORD_HEADER_ATTR
|
testing::ExamplePerfEventAttrEvent_Hardware(PERF_SAMPLE_IP | PERF_SAMPLE_TID,
|
true /*sample_id_all*/)
|
.WriteTo(&input);
|
|
// Perf infers the filename is "file", but at offset 0 for
|
// hugepage-backed, anonymous mappings.
|
//
|
// vaddr start - vaddr end vaddr-size elf-offset
|
// [0x55bd43879000-0x55bd45000000) (0x 1787000) @ 0x 0]: file
|
// [0x55bd45000000-0x55bd58c00000) (0x13c00000) @ 0x 0]: file
|
// [0x55bd58c00000-0x55bd59800000) (0x c00000) @ 0x15387000]: file
|
// [0x55bd59800000-0x55bd59a00000) (0x 200000) @ 0x 0]: file
|
// [0x55bd59a00000-0x55bd5b600000) (0x 1c00000) @ 0x16187000]: file
|
// [0x55bd5b600000-0x55bd5b800000) (0x 200000) @ 0x 0]: file
|
// [0x55bd5b800000-0x55bd5bcb5000) (0x 4b5000) @ 0x17f87000]: file
|
|
testing::ExampleMmapEvent(1234, 0x55bd43879000, 0x1787000, 0, "file",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
testing::ExampleMmapEvent(1234, 0x55bd45000000, 0x13c00000, 0, "file",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
testing::ExampleMmapEvent(1234, 0x55bd58c00000, 0xc00000, 0x15387000, "file",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
testing::ExampleMmapEvent(1234, 0x55bd59800000, 0x200000, 0, "file",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
testing::ExampleMmapEvent(1234, 0x55bd59a00000, 0x1c00000, 0x16187000, "file",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
testing::ExampleMmapEvent(1234, 0x55bd5b600000, 0x200000, 0, "file",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
testing::ExampleMmapEvent(1234, 0x55bd5b800000, 0x4b5000, 0x17f87000, "file",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
|
//
|
// Parse input.
|
//
|
|
PerfReader reader;
|
EXPECT_TRUE(reader.ReadFromString(input.str()));
|
|
PerfParserOptions options;
|
options.deduce_huge_page_mappings = true;
|
options.combine_mappings = true;
|
PerfParser parser(&reader, options);
|
EXPECT_TRUE(parser.ParseRawEvents());
|
|
EXPECT_EQ(1, parser.stats().num_mmap_events);
|
EXPECT_EQ(0, parser.stats().num_sample_events);
|
EXPECT_EQ(0, parser.stats().num_sample_events_mapped);
|
|
PerfDataProto expected;
|
{
|
auto *ev = expected.add_events();
|
ev->mutable_header()->set_type(PERF_RECORD_MMAP);
|
ev->mutable_mmap_event()->set_filename("file");
|
ev->mutable_mmap_event()->set_start(0x55bd43879000);
|
ev->mutable_mmap_event()->set_len(0x55bd5bcb5000 - 0x55bd43879000);
|
ev->mutable_mmap_event()->set_pgoff(0x0);
|
}
|
|
PerfDataProto actual;
|
CopyActualEvents(parser.parsed_events(), &actual);
|
EXPECT_TRUE(PartiallyEqualsProto(actual, expected));
|
ASSERT_EQ(1, parser.parsed_events().size());
|
}
|
|
TEST(PerfParserTest, Regression62446346_Perf3_12_0_14) {
|
std::stringstream input;
|
|
// header
|
testing::ExamplePipedPerfDataFileHeader().WriteTo(&input);
|
|
// PERF_RECORD_HEADER_ATTR
|
testing::ExamplePerfEventAttrEvent_Hardware(PERF_SAMPLE_IP | PERF_SAMPLE_TID,
|
true /*sample_id_all*/)
|
.WriteTo(&input);
|
|
// Perf infers the filename is "file", but at offset 0 for
|
// hugepage-backed, anonymous mappings.
|
//
|
// vaddr start - vaddr end vaddr-size elf-offset
|
// [0x55bd43879000-0x55bd45000000) (0x 1787000) @ 0x 0]: file
|
// [0x55bd45000000-0x55bd58c00000) (0x13c00000) @ 0x 1787000]: file
|
// [0x55bd58c00000-0x55bd59800000) (0x c00000) @ 0x15387000]: file
|
// [0x55bd59800000-0x55bd59a00000) (0x 200000) @ 0x15f87000]: file
|
// [0x55bd59a00000-0x55bd5b600000) (0x 1c00000) @ 0x16187000]: file
|
// [0x55bd5b600000-0x55bd5b800000) (0x 200000) @ 0x17d87000]: file
|
// [0x55bd5b800000-0x55bd5bcb5000) (0x 4b5000) @ 0x17f87000]: file
|
|
testing::ExampleMmapEvent(1234, 0x55bd43879000, 0x1787000, 0, "file",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
testing::ExampleMmapEvent(1234, 0x55bd45000000, 0x13c00000, 0x1787000, "file",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
testing::ExampleMmapEvent(1234, 0x55bd58c00000, 0xc00000, 0x15387000, "file",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
testing::ExampleMmapEvent(1234, 0x55bd59800000, 0x200000, 0x15f87000, "file",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
testing::ExampleMmapEvent(1234, 0x55bd59a00000, 0x1c00000, 0x16187000, "file",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
testing::ExampleMmapEvent(1234, 0x55bd5b600000, 0x200000, 0x17d87000, "file",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
testing::ExampleMmapEvent(1234, 0x55bd5b800000, 0x4b5000, 0x17f87000, "file",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
|
//
|
// Parse input.
|
//
|
|
PerfReader reader;
|
EXPECT_TRUE(reader.ReadFromString(input.str()));
|
|
PerfParserOptions options;
|
options.deduce_huge_page_mappings = true;
|
options.combine_mappings = true;
|
PerfParser parser(&reader, options);
|
EXPECT_TRUE(parser.ParseRawEvents());
|
|
EXPECT_EQ(1, parser.stats().num_mmap_events);
|
EXPECT_EQ(0, parser.stats().num_sample_events);
|
EXPECT_EQ(0, parser.stats().num_sample_events_mapped);
|
|
PerfDataProto expected;
|
{
|
auto *ev = expected.add_events();
|
ev->mutable_header()->set_type(PERF_RECORD_MMAP);
|
ev->mutable_mmap_event()->set_filename("file");
|
ev->mutable_mmap_event()->set_start(0x55bd43879000);
|
ev->mutable_mmap_event()->set_len(0x55bd5bcb5000 - 0x55bd43879000);
|
ev->mutable_mmap_event()->set_pgoff(0x0);
|
}
|
|
PerfDataProto actual;
|
CopyActualEvents(parser.parsed_events(), &actual);
|
EXPECT_TRUE(PartiallyEqualsProto(actual, expected));
|
EXPECT_EQ(1, parser.parsed_events().size());
|
}
|
|
TEST(PerfParserTest, DiscontiguousMappings) {
|
std::stringstream input;
|
|
// header
|
testing::ExamplePipedPerfDataFileHeader().WriteTo(&input);
|
|
// PERF_RECORD_HEADER_ATTR
|
testing::ExamplePerfEventAttrEvent_Hardware(PERF_SAMPLE_IP | PERF_SAMPLE_TID,
|
true /*sample_id_all*/)
|
.WriteTo(&input);
|
|
// vaddr start - vaddr end vaddr-size elf-offset
|
// [0x7f489000-0x80200000) (0xd77000) @ 0]: file
|
// [0x80200000-0x80400000) (0x200000) @ 0]: file
|
// [0x80400000-0x80474000) (0x47000) @ 0x1a00000]: file
|
testing::ExampleMmapEvent(1234, 0x7f489000, 0xd77000, 0, "file",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
testing::ExampleMmapEvent(1234, 0x80200000, 0x200000, 0, "file",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
testing::ExampleMmapEvent(1234, 0x80400000, 0x47000, 0x1a00000, "file",
|
testing::SampleInfo().Tid(1234, 1234))
|
.WriteTo(&input);
|
|
//
|
// Parse input.
|
//
|
|
PerfReader reader;
|
EXPECT_TRUE(reader.ReadFromString(input.str()));
|
|
PerfParserOptions options;
|
options.deduce_huge_page_mappings = true;
|
options.combine_mappings = true;
|
PerfParser parser(&reader, options);
|
EXPECT_TRUE(parser.ParseRawEvents());
|
|
EXPECT_EQ(3, parser.stats().num_mmap_events);
|
EXPECT_EQ(0, parser.stats().num_sample_events);
|
EXPECT_EQ(0, parser.stats().num_sample_events_mapped);
|
|
// The first two mappings should not combine, since we cannot know if the
|
// middle one follows the first, or preceeds the last in the binary.
|
PerfDataProto expected;
|
{
|
auto *ev = expected.add_events();
|
ev->mutable_header()->set_type(PERF_RECORD_MMAP);
|
ev->mutable_mmap_event()->set_filename("file");
|
ev->mutable_mmap_event()->set_start(0x7f489000);
|
ev->mutable_mmap_event()->set_len(0xd77000);
|
ev->mutable_mmap_event()->set_pgoff(0x0);
|
}
|
{
|
auto *ev = expected.add_events();
|
ev->mutable_header()->set_type(PERF_RECORD_MMAP);
|
ev->mutable_mmap_event()->set_filename("file");
|
ev->mutable_mmap_event()->set_start(0x80200000);
|
ev->mutable_mmap_event()->set_len(0x200000);
|
ev->mutable_mmap_event()->set_pgoff(0x0);
|
}
|
{
|
auto *ev = expected.add_events();
|
ev->mutable_header()->set_type(PERF_RECORD_MMAP);
|
ev->mutable_mmap_event()->set_filename("file");
|
ev->mutable_mmap_event()->set_start(0x80400000);
|
ev->mutable_mmap_event()->set_len(0x47000);
|
ev->mutable_mmap_event()->set_pgoff(0x1a00000);
|
}
|
|
PerfDataProto actual;
|
CopyActualEvents(parser.parsed_events(), &actual);
|
|
EXPECT_TRUE(PartiallyEqualsProto(actual, expected));
|
EXPECT_EQ(3, parser.parsed_events().size());
|
}
|
} // namespace quipper
|
