/*
* Copyright ( C ) 2015 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 .
*/
#ifndef ART_OATDUMP_OATDUMP_TEST_H_
#define ART_OATDUMP_OATDUMP_TEST_H_
#include <sys/types.h>
#include <unistd.h>
#include <memory>
#include <sstream>
#include <string>
#include <type_traits>
#include <vector>
#include "arch/instruction_set.h"
#include "base/common_art_test.h"
#include "base/file_utils.h"
#include "base/os.h"
#include "common_runtime_test.h"
#include "gtest/gtest.h"
namespace art {
// Linking flavor.
enum class Flavor {
kDynamic, // oatdump(d), dex2oat(d)
kStatic, // oatdump(d)s, dex2oat(d)s
};
class OatDumpTest : public CommonRuntimeTest, public ::testing::WithParamInterface<Flavor> {
protected :
virtual void SetUp() {
CommonRuntimeTest::SetUp();
core_art_location_ = GetCoreArtLocation();
core_oat_location_ = GetSystemImageFilename(GetCoreOatLocation().c_str(), kRuntimeISA);
tmp_dir_ = GetScratchDir();
if (GetParam() == Flavor::kStatic) {
TEST_DISABLED_FOR_NON_STATIC_HOST_BUILDS();
}
// Prevent boot image inference to ensure consistent test behavior.
unset_bootclasspath_ = std::make_unique<ScopedUnsetEnvironmentVariable>("BOOTCLASSPATH" );
}
virtual void TearDown() {
unset_bootclasspath_.reset();
ClearDirectory(tmp_dir_.c_str(), /*recursive*/ false);
ASSERT_EQ(rmdir(tmp_dir_.c_str()), 0 );
CommonRuntimeTest::TearDown();
}
std::string GetScratchDir() const {
// ANDROID_DATA needs to be set
CHECK_NE(static_cast <char *>(nullptr), getenv("ANDROID_DATA" ));
std::string dir = getenv("ANDROID_DATA" );
dir += "/oatdump-tmp-dir-XXXXXX" ;
if (mkdtemp(&dir[0 ]) == nullptr) {
PLOG(FATAL) << "mkdtemp(\" " << &dir[0] << " \") failed" ;
}
return dir;
}
// Returns path to the oatdump/dex2oat/dexdump binary.
static std::string GetExecutableFilePath(const char * name,
bool is_debug,
bool is_static,
bool bitness) {
std::string path = GetArtBinDir() + '/' + name;
if (is_debug) {
path += 'd' ;
}
if (is_static) {
path += 's' ;
}
if (bitness) {
path += Is64BitInstructionSet(kRuntimeISA) ? "64" : "32" ;
}
return path;
}
static std::string GetExecutableFilePath(Flavor flavor, const char * name, bool bitness) {
return GetExecutableFilePath(name, kIsDebugBuild, flavor == Flavor::kStatic, bitness);
}
enum Args {
kArgImage = 1 << 0 , // --image=<boot-image>
kArgAppImage = 1 << 1 , // --app-image=<app-image>
kArgOatBcp = 1 << 2 , // --oat-file=<bcp-oat-file>
kArgDexBcp = 1 << 3 , // --dex-file=<bcp-dex-file>
kArgOatApp = 1 << 4 , // --oat-file=<app-oat-file>
kArgSymbolize = 1 << 5 , // --symbolize=<bcp-oat-file>
kArgDexApp = 1 << 6 , // --dex-file=<app-dex-file>
kArgMethodAndOffsetAsJson = 1 << 7 , // --dump-method-and-offset-only
// Runtime args.
kArgBcp = 1 << 16 , // --runtime-arg -Xbootclasspath:<bcp>
kArgBootImage = 1 << 17 , // --boot-image=<boot-image>
kArgIsa = 1 << 18 , // --instruction-set=<isa>
};
enum Expects {
kExpectImage = 1 << 0 ,
kExpectOat = 1 << 1 ,
kExpectCode = 1 << 2 ,
kExpectBssMappingsForBcp = 1 << 3 ,
kExpectBssOffsetsForBcp = 1 << 4 ,
kExpectMethodAndOffsetAsJson = 1 << 5 ,
};
static std::string GetAppBaseName() {
// Use ProfileTestMultiDex as it contains references to boot image strings
// that shall use different code for PIC and non-PIC.
return "ProfileTestMultiDex" ;
}
std::string GetAppImageName() const { return tmp_dir_ + "/" + GetAppBaseName() + ".art" ; }
std::string GetAppOdexName() const { return tmp_dir_ + "/" + GetAppBaseName() + ".odex" ; }
::testing::AssertionResult GenerateAppOdexFile(Flavor flavor,
const std::vector<std::string>& args = {}) const {
std::string dex2oat_path =
GetExecutableFilePath(flavor, "dex2oat" , /* bitness= */ kIsTargetBuild);
std::vector<std::string> exec_argv = {
dex2oat_path,
"--runtime-arg" ,
"-Xms64m" ,
"--runtime-arg" ,
"-Xmx64m" ,
"--runtime-arg" ,
"-Xnorelocate" ,
"--runtime-arg" ,
GetClassPathOption("-Xbootclasspath:" , GetLibCoreDexFileNames()),
"--runtime-arg" ,
GetClassPathOption("-Xbootclasspath-locations:" , GetLibCoreDexLocations()),
"--boot-image=" + GetCoreArtLocation(),
"--instruction-set=" + std::string(GetInstructionSetString(kRuntimeISA)),
"--dex-file=" + GetTestDexFileName(GetAppBaseName().c_str()),
"--oat-file=" + GetAppOdexName(),
"--compiler-filter=speed" ,
};
exec_argv.insert(exec_argv.end(), args.begin(), args.end());
auto post_fork_fn = []() {
setpgid(0 , 0 ); // Change process groups, so we don't get reaped by ProcessManager.
// Ignore setpgid errors.
return setenv("ANDROID_LOG_TAGS" , "*:e" , 1 ) == 0 ; // We're only interested in errors and
// fatal logs.
};
std::string error_msg;
ForkAndExecResult res = ForkAndExec(exec_argv, post_fork_fn, &error_msg);
if (res.stage != ForkAndExecResult::kFinished) {
return ::testing::AssertionFailure() << strerror(errno);
}
return res.StandardSuccess() ? ::testing::AssertionSuccess()
: (::testing::AssertionFailure() << error_msg);
}
// Run the test with custom arguments.
::testing::AssertionResult Exec(Flavor flavor,
std::underlying_type_t<Args> args,
const std::vector<std::string>& extra_args,
std::underlying_type_t<Expects> expects,
bool expect_failure = false ) const {
std::string file_path = GetExecutableFilePath(flavor, "oatdump" , /* bitness= */ false);
if (!OS::FileExists(file_path.c_str())) {
return ::testing::AssertionFailure() << file_path << " should be a valid file path" ;
}
std::vector<std::string> expected_prefixes;
if ((expects & kExpectImage) != 0 ) {
expected_prefixes.push_back("IMAGE LOCATION:" );
expected_prefixes.push_back("IMAGE BEGIN:" );
expected_prefixes.push_back("kDexCaches:" );
}
if ((expects & kExpectOat) != 0 ) {
expected_prefixes.push_back("LOCATION:" );
expected_prefixes.push_back("MAGIC:" );
expected_prefixes.push_back("DEX FILE COUNT:" );
}
if ((expects & kExpectCode) != 0 ) {
// Code and dex code do not show up if list only.
expected_prefixes.push_back("DEX CODE:" );
expected_prefixes.push_back("CODE:" );
expected_prefixes.push_back("StackMap" );
}
if ((expects & kExpectBssMappingsForBcp) != 0 ) {
expected_prefixes.push_back("Entries for BCP DexFile" );
}
if ((expects & kExpectBssOffsetsForBcp) != 0 ) {
expected_prefixes.push_back("Offsets for BCP DexFile" );
}
if ((expects & kExpectMethodAndOffsetAsJson) != 0 ) {
expected_prefixes.push_back(
"{\" method\":\" void java.lang.Object.<init>()\",\" offset\":\" 0 x"); // actual offset may
// differ between dex
// files
}
std::vector<std::string> exec_argv = {file_path};
if ((args & kArgSymbolize) != 0 ) {
exec_argv.push_back("--symbolize=" + core_oat_location_);
exec_argv.push_back("--output=" + core_oat_location_ + ".symbolize" );
}
if ((args & kArgBcp) != 0 ) {
exec_argv.push_back("--runtime-arg" );
exec_argv.push_back(GetClassPathOption("-Xbootclasspath:" , GetLibCoreDexFileNames()));
exec_argv.push_back("--runtime-arg" );
exec_argv.push_back(
GetClassPathOption("-Xbootclasspath-locations:" , GetLibCoreDexLocations()));
}
if ((args & kArgIsa) != 0 ) {
exec_argv.push_back("--instruction-set=" + std::string(GetInstructionSetString(kRuntimeISA)));
}
if ((args & kArgBootImage) != 0 ) {
exec_argv.push_back("--boot-image=" + GetCoreArtLocation());
}
if ((args & kArgImage) != 0 ) {
exec_argv.push_back("--image=" + GetCoreArtLocation());
}
if ((args & kArgAppImage) != 0 ) {
exec_argv.push_back("--app-image=" + GetAppImageName());
}
if ((args & kArgOatBcp) != 0 ) {
exec_argv.push_back("--oat-file=" + core_oat_location_);
}
if ((args & kArgDexBcp) != 0 ) {
exec_argv.push_back("--dex-file=" + GetLibCoreDexFileNames()[0 ]);
}
if ((args & kArgOatApp) != 0 ) {
exec_argv.push_back("--oat-file=" + GetAppOdexName());
}
if ((args & kArgDexApp) != 0 ) {
exec_argv.push_back("--dex-file=" + GetTestDexFileName(GetAppBaseName().c_str()));
}
if ((args & kArgMethodAndOffsetAsJson) != 0 ) {
exec_argv.push_back("--dump-method-and-offset-as-json" );
}
if (::android::base::GetBoolProperty("dalvik.vm.allow_profile_code" , false )) {
exec_argv.push_back("--allow-profile-code" );
}
exec_argv.insert(exec_argv.end(), extra_args.begin(), extra_args.end());
std::vector<bool > found(expected_prefixes.size(), false );
auto line_handle_fn = [&found, &expected_prefixes](const char * line, size_t line_len) {
if (line_len == 0 ) {
return ;
}
// Check contents.
for (size_t i = 0 ; i < expected_prefixes.size(); ++i) {
const std::string& expected = expected_prefixes[i];
if (!found[i] &&
line_len >= expected.length() &&
memcmp(line, expected.c_str(), expected.length()) == 0 ) {
found[i] = true ;
}
}
};
static constexpr size_t kLineMax = 256 ;
char line[kLineMax] = {};
size_t line_len = 0 ;
size_t total = 0 ;
bool ignore_next_line = false ;
std::vector<char > error_buf; // Buffer for debug output on error. Limited to 1M.
auto line_buf_fn = [&](char * buf, size_t len) {
total += len;
if (len == 0 && line_len > 0 && !ignore_next_line) {
// Everything done, handle leftovers.
line_handle_fn(line, line_len);
}
if (len > 0 ) {
size_t pos = error_buf.size();
if (pos < MB) {
error_buf.insert(error_buf.end(), buf, buf + len);
}
}
while (len > 0 ) {
// Copy buf into the free tail of the line buffer, and move input buffer along.
size_t copy = std::min(kLineMax - line_len, len);
memcpy(&line[line_len], buf, copy);
buf += copy;
len -= copy;
// Skip spaces up to len, return count of removed spaces. Declare a lambda for reuse.
auto trim_space = [&line](size_t len) {
size_t spaces = 0 ;
for (; spaces < len && isspace(line[spaces]); ++spaces) {}
if (spaces > 0 ) {
memmove(&line[0 ], &line[spaces], len - spaces);
}
return spaces;
};
// There can only be spaces if we freshly started a line.
if (line_len == 0 ) {
copy -= trim_space(copy);
}
// Scan for newline characters.
size_t index = line_len;
line_len += copy;
while (index < line_len) {
if (line[index] == '\n' ) {
// Handle line.
if (!ignore_next_line) {
line_handle_fn(line, index);
}
// Move the rest to the front, but trim leading spaces.
line_len -= index + 1 ;
memmove(&line[0 ], &line[index + 1 ], line_len);
line_len -= trim_space(line_len);
index = 0 ;
ignore_next_line = false ;
} else {
index++;
}
}
// Handle a full line without newline characters. Ignore the "next" line, as it is the
// tail end of this.
if (line_len == kLineMax) {
if (!ignore_next_line) {
line_handle_fn(line, kLineMax);
}
line_len = 0 ;
ignore_next_line = true ;
}
}
};
auto post_fork_fn = []() {
setpgid(0 , 0 ); // Change process groups, so we don't get reaped by ProcessManager.
// Ignore setpgid failures.
return setenv("ANDROID_LOG_TAGS" , "*:e" , 1 ) == 0 ; // We're only interested in errors and
// fatal logs.
};
ForkAndExecResult res = ForkAndExec(exec_argv, post_fork_fn, line_buf_fn);
if (res.stage != ForkAndExecResult::kFinished) {
return ::testing::AssertionFailure() << strerror(errno);
}
error_buf.push_back(0 ); // Make data a C string.
if (!res.StandardSuccess()) {
if (expect_failure && WIFEXITED(res.status_code)) {
// Avoid crash as valid exit.
return ::testing::AssertionSuccess();
}
std::ostringstream cmd;
std::copy(exec_argv.begin(), exec_argv.end(), std::ostream_iterator<std::string>(cmd, " " ));
LOG(ERROR) << "Output: " << error_buf.data(); // Output first as it might be extremely long.
LOG(ERROR) << "Failed command: " << cmd.str(); // Useful to reproduce the failure separately.
return ::testing::AssertionFailure() << "Did not terminate successfully: " << res.status_code;
} else if (expect_failure) {
return ::testing::AssertionFailure() << "Expected failure" ;
}
if ((args & kArgSymbolize) != 0 ) {
EXPECT_EQ(total, 0 u);
} else {
EXPECT_GT(total, 0 u);
}
bool result = true ;
std::ostringstream oss;
for (size_t i = 0 ; i < expected_prefixes.size(); ++i) {
if (!found[i]) {
oss << "Did not find prefix " << expected_prefixes[i] << std::endl;
result = false ;
}
}
if (!result) {
oss << "Processed bytes " << total << ":" << std::endl;
}
return result ? ::testing::AssertionSuccess()
: (::testing::AssertionFailure() << oss.str() << error_buf.data());
}
std::string tmp_dir_;
private :
std::string core_art_location_;
std::string core_oat_location_;
std::unique_ptr<ScopedUnsetEnvironmentVariable> unset_bootclasspath_;
};
} // namespace art
#endif // ART_OATDUMP_OATDUMP_TEST_H_
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