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/*
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "dso.h"
#include <gtest/gtest.h>
#include <android-base/file.h>
#include <android-base/stringprintf.h>
#include "get_test_data.h"
#include "read_apk.h"
#include "utils.h"
using namespace simpleperf_dso_impl;
TEST(DebugElfFileFinder, use_build_id_list) {
// Create a temp symdir with build_id_list.
TemporaryDir tmpdir;
TemporaryFile tmpfile(tmpdir.path);
std::string data;
ASSERT_TRUE(android::base::ReadFileToString(GetTestData(ELF_FILE), &data));
ASSERT_TRUE(android::base::WriteStringToFile(data, tmpfile.path));
BuildId build_id(ELF_FILE_BUILD_ID);
std::string build_id_list = android::base::StringPrintf(
"%s=%s\n", build_id.ToString().c_str(), android::base::Basename(tmpfile.path).c_str());
std::string build_id_list_file = std::string(tmpdir.path) + "/build_id_list";
ASSERT_TRUE(android::base::WriteStringToFile(build_id_list, build_id_list_file));
DebugElfFileFinder finder;
ASSERT_TRUE(finder.SetSymFsDir(tmpdir.path));
ASSERT_EQ(finder.FindDebugFile("elf", false, build_id), std::string(tmpfile.path));
unlink(build_id_list_file.c_str());
}
TEST(DebugElfFileFinder, concatenating_symfs_dir) {
DebugElfFileFinder finder;
ASSERT_TRUE(finder.SetSymFsDir(GetTestDataDir()));
ASSERT_EQ(finder.GetPathInSymFsDir("/system/libc.so"),
GetTestDataDir() + "system" + OS_PATH_SEPARATOR + "libc.so");
ASSERT_EQ(finder.GetPathInSymFsDir("/data/base.apk!/lib/base.so"),
GetTestDataDir() + "data" + OS_PATH_SEPARATOR + "base.apk!/lib/base.so");
BuildId build_id(ELF_FILE_BUILD_ID);
ASSERT_EQ(finder.FindDebugFile(ELF_FILE, false, build_id), GetTestDataDir() + ELF_FILE);
std::string native_lib_in_apk = APK_FILE + "!/" + NATIVELIB_IN_APK;
std::string apk_path = APK_FILE;
std::replace(apk_path.begin(), apk_path.end(), '/', OS_PATH_SEPARATOR);
ASSERT_EQ(finder.FindDebugFile(native_lib_in_apk, false, native_lib_build_id),
GetTestDataDir() + apk_path + "!/" + NATIVELIB_IN_APK);
}
TEST(DebugElfFileFinder, use_vdso) {
DebugElfFileFinder finder;
std::string fake_vdso32 = "fake_vdso32";
std::string fake_vdso64 = "fake_vdso64";
finder.SetVdsoFile(fake_vdso32, false);
finder.SetVdsoFile(fake_vdso64, true);
BuildId build_id;
ASSERT_EQ(finder.FindDebugFile("[vdso]", false, build_id), fake_vdso32);
ASSERT_EQ(finder.FindDebugFile("[vdso]", true, build_id), fake_vdso64);
}
TEST(DebugElfFileFinder, add_symbol_dir) {
DebugElfFileFinder finder;
ASSERT_FALSE(finder.AddSymbolDir(GetTestDataDir() + "dir_not_exist"));
ASSERT_EQ(finder.FindDebugFile("elf", false, CHECK_ELF_FILE_BUILD_ID), "elf");
std::string symfs_dir = GetTestDataDir() + CORRECT_SYMFS_FOR_BUILD_ID_CHECK;
std::replace(symfs_dir.begin(), symfs_dir.end(), '/', OS_PATH_SEPARATOR);
ASSERT_TRUE(finder.AddSymbolDir(symfs_dir));
ASSERT_EQ(finder.FindDebugFile("elf", false, CHECK_ELF_FILE_BUILD_ID),
symfs_dir + OS_PATH_SEPARATOR + "elf_for_build_id_check");
}
TEST(dso, dex_file_dso) {
#if defined(__linux__)
for (DsoType dso_type : {DSO_DEX_FILE, DSO_ELF_FILE}) {
std::unique_ptr<Dso> dso = Dso::CreateDso(dso_type, GetTestData("base.vdex"));
ASSERT_TRUE(dso);
dso->AddDexFileOffset(0x28);
ASSERT_EQ(DSO_DEX_FILE, dso->type());
const Symbol* symbol = dso->FindSymbol(0x6c77e);
ASSERT_NE(symbol, nullptr);
ASSERT_EQ(symbol->addr, static_cast<uint64_t>(0x6c77e));
ASSERT_EQ(symbol->len, static_cast<uint64_t>(0x16));
ASSERT_STREQ(symbol->DemangledName(),
"com.example.simpleperf.simpleperfexamplewithnative.MixActivity$1.run");
uint64_t min_vaddr;
uint64_t file_offset_of_min_vaddr;
dso->GetMinExecutableVaddr(&min_vaddr, &file_offset_of_min_vaddr);
ASSERT_EQ(min_vaddr, 0);
ASSERT_EQ(file_offset_of_min_vaddr, 0);
// Don't crash on not exist zip entry.
dso = Dso::CreateDso(dso_type, GetTestData("base.zip!/not_exist_entry"));
ASSERT_TRUE(dso);
ASSERT_EQ(nullptr, dso->FindSymbol(0));
}
#else
GTEST_LOG_(INFO) << "This test only runs on linux because of libdexfile";
#endif // defined(__linux__)
}
TEST(dso, dex_file_offsets) {
std::unique_ptr<Dso> dso = Dso::CreateDso(DSO_DEX_FILE, "");
ASSERT_TRUE(dso);
for (uint64_t offset : {0x3, 0x1, 0x5, 0x4, 0x2, 0x4, 0x3}) {
dso->AddDexFileOffset(offset);
}
ASSERT_EQ(*dso->DexFileOffsets(), std::vector<uint64_t>({0x1, 0x2, 0x3, 0x4, 0x5}));
}
TEST(dso, embedded_elf) {
const std::string file_path = GetUrlInApk(GetTestData(APK_FILE), NATIVELIB_IN_APK);
std::unique_ptr<Dso> dso = Dso::CreateDso(DSO_ELF_FILE, file_path);
ASSERT_TRUE(dso);
ASSERT_EQ(dso->Path(), file_path);
ASSERT_EQ(dso->GetDebugFilePath(), file_path);
uint64_t min_vaddr;
uint64_t file_offset_of_min_vaddr;
dso->GetMinExecutableVaddr(&min_vaddr, &file_offset_of_min_vaddr);
ASSERT_EQ(min_vaddr, 0);
ASSERT_EQ(file_offset_of_min_vaddr, 0);
const Symbol* symbol = dso->FindSymbol(0x9a4);
ASSERT_TRUE(symbol != nullptr);
ASSERT_STREQ(symbol->Name(), "Java_com_example_hellojni_HelloJni_callFunc1");
BuildId build_id;
ASSERT_TRUE(GetBuildIdFromDsoPath(file_path, &build_id));
ASSERT_EQ(build_id, native_lib_build_id);
}
TEST(dso, IpToVaddrInFile) {
std::unique_ptr<Dso> dso = Dso::CreateDso(DSO_ELF_FILE, GetTestData("libc.so"));
ASSERT_TRUE(dso);
ASSERT_EQ(0xa5140, dso->IpToVaddrInFile(0xe9201140, 0xe9201000, 0xa5000));
}
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