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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
// -*- mode: C++ -*-
//
// Copyright 2020-2023 Google LLC
//
// Licensed under the Apache License v2.0 with LLVM Exceptions (the
// "License"); you may not use this file except in compliance with the
// License. You may obtain a copy of the License at
//
// https://llvm.org/LICENSE.txt
//
// 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.
//
// Author: Maria Teguiani
// Author: Giuliano Procida
// Author: Aleksei Vetrov
#include <getopt.h>
#include <iostream>
#include <utility>
#include <vector>
#include "input.h"
#include "error.h"
#include "graph.h"
#include "metrics.h"
#include "reader_options.h"
using Input = std::pair<stg::InputFormat, const char*>;
int main(int argc, char* const argv[]) {
enum LongOptions {
kSkipDwarf = 256,
};
stg::ReadOptions opt_read_options(stg::ReadOptions::INFO);
static option opts[] = {
{"btf", required_argument, nullptr, 'b' },
{"elf", required_argument, nullptr, 'e' },
{"skip-dwarf", no_argument, nullptr, kSkipDwarf},
{nullptr, 0, nullptr, 0 },
};
auto usage = [&]() {
std::cerr << "Parse BTF or ELF with verbose logging.\n"
<< "usage: " << argv[0]
<< " [--skip-dwarf] -b|--btf|-e|--elf file\n";
return 1;
};
std::vector<Input> inputs;
while (true) {
int c = getopt_long(argc, argv, "-b:e:", opts, nullptr);
if (c == -1) {
break;
}
const char* argument = optarg;
switch (c) {
case 'b':
inputs.emplace_back(stg::InputFormat::BTF, argument);
break;
case 'e':
inputs.emplace_back(stg::InputFormat::ELF, argument);
break;
case kSkipDwarf:
opt_read_options.Set(stg::ReadOptions::SKIP_DWARF);
break;
default:
return usage();
}
}
// allow only one input file
if (inputs.size() != 1) {
return usage();
}
const auto& [format, filename] = inputs[0];
try {
stg::Graph graph;
stg::Metrics metrics;
(void)stg::Read(graph, format, filename, opt_read_options, nullptr,
metrics);
} catch (const stg::Exception& e) {
std::cerr << e.what() << '\n';
return 1;
}
return 0;
}
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