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/*
* Copyright (C) 2019 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 <stdio.h>
#include "perfetto/base/logging.h"
#include "perfetto/ext/base/scoped_file.h"
#include "perfetto/profiling/deobfuscator.h"
#include "perfetto/trace_processor/trace_processor.h"
#include "tools/trace_to_text/deobfuscate_profile.h"
#include "tools/trace_to_text/utils.h"
namespace perfetto {
namespace trace_to_text {
namespace {
bool ParseFile(profiling::ProguardParser* p, FILE* f) {
std::vector<std::string> lines;
size_t n = 0;
char* line = nullptr;
ssize_t rd = 0;
bool success = true;
do {
rd = getline(&line, &n, f);
// Do not read empty line that terminates the output.
if (rd > 1) {
// Remove newline character.
PERFETTO_DCHECK(line[rd - 1] == '\n');
line[rd - 1] = '\0';
success = p->AddLine(line);
}
} while (rd > 1 && success);
free(line);
return success;
}
} // namespace
int DeobfuscateProfile(std::istream* input, std::ostream* output) {
base::ignore_result(input);
base::ignore_result(output);
auto maybe_map = GetPerfettoProguardMapPath();
if (!maybe_map) {
PERFETTO_ELOG("No PERFETTO_PROGUARD_MAP specified.");
return 1;
}
base::ScopedFstream f(fopen(maybe_map->c_str(), "r"));
if (!f) {
PERFETTO_ELOG("Failed to open %s", maybe_map->c_str());
return 1;
}
profiling::ProguardParser parser;
if (!ParseFile(&parser, *f)) {
PERFETTO_ELOG("Failed to parse %s", maybe_map->c_str());
return 1;
}
std::map<std::string, profiling::ObfuscatedClass> obfuscation_map =
parser.ConsumeMapping();
trace_processor::Config config;
std::unique_ptr<trace_processor::TraceProcessor> tp =
trace_processor::TraceProcessor::CreateInstance(config);
if (!ReadTrace(tp.get(), input))
PERFETTO_FATAL("Failed to read trace.");
tp->NotifyEndOfFile();
DeobfuscateDatabase(tp.get(), obfuscation_map,
[output](const std::string& packet_proto) {
WriteTracePacket(packet_proto, output);
});
return 0;
}
} // namespace trace_to_text
} // namespace perfetto
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