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// -*- Mode: C++ -*-
// Copyright (C) 2013-2018 Red Hat, Inc.
//
// This file is part of the GNU Application Binary Interface Generic
// Analysis and Instrumentation Library (libabigail). This library is
// free software; you can redistribute it and/or modify it under the
// terms of the GNU Lesser General Public License as published by the
// Free Software Foundation; either version 3, or (at your option) any
// later version.
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Lesser Public License for more details.
// You should have received a copy of the GNU Lesser General Public
// License along with this program; see the file COPYING-LGPLV3. If
// not, see <http://www.gnu.org/licenses/>.
//
// Author: Dodji Seketeli
//
#include <cstring>
#include <iostream>
#include "abg-comparison.h"
#include "abg-dwarf-reader.h"
using std::cout;
using std::cerr;
using std::ostream;
using std::string;
using abigail::comparison::diff;
using abigail::comparison::diff_sptr;
using abigail::ir::environment;
using abigail::ir::environment_sptr;
using abigail::comparison::corpus_diff_sptr;
using abigail::comparison::compute_diff;
using abigail::comparison::print_diff_tree;
using abigail::comparison::apply_filters;
using namespace abigail;
using namespace abigail::dwarf_reader;
struct options
{
bool display_help;
bool categorize_redundancy;
bool apply_filters;
string elf1;
string elf2;
options()
: display_help(false),
categorize_redundancy(false),
apply_filters(false)
{}
};
static void
display_help(const string& prog_name,
ostream& out)
{
out << prog_name << " [options] <elf lib1> <elf lib2>\n"
<< " where options can be:\n"
<< " --categorize-redundancy categorize diff node redundancy\n"
<< " --apply-filters apply the generic categorization filters\n"
<< " --help display this message\n";
}
static bool
parse_command_line(int argc, char* argv[], options& opts)
{
if (argc < 2)
return false;
for (int i = 1; i < argc; ++i)
{
if (argv[i][0] != '-')
{
if (opts.elf1.empty())
opts.elf1 = argv[i];
else if (opts.elf2.empty())
opts.elf2 = argv[i];
else
return false;
}
else if (!strcmp(argv[i], "--help"))
opts.display_help = true;
else if (!strcmp(argv[i], "--categorize-redundancy"))
opts.categorize_redundancy = true;
else if (!strcmp(argv[i], "--apply-filters"))
opts.apply_filters = true;
else
return false;
}
return true;
}
int
main(int argc, char* argv[])
{
options opts;
if (!parse_command_line(argc, argv, opts))
{
cerr << "unrecognized option\n"
"try the --help option for more information\n";
return false;
}
if (opts.display_help)
{
display_help(argv[0], cout);
return 0;
}
if (!opts.elf1.empty() && !opts.elf2.empty())
{
dwarf_reader::status c1_status, c2_status;
corpus_sptr c1, c2;
environment_sptr env(new environment);
c1 = dwarf_reader::read_corpus_from_elf(opts.elf1, 0, env.get(),
/*load_all_types=*/false,
c1_status);
if (c1_status != dwarf_reader::STATUS_OK)
{
cerr << "Failed to read elf file " << opts.elf1 << "\n";
return 1;
}
c2 = dwarf_reader::read_corpus_from_elf(opts.elf2, 0, env.get(),
/*load_all_types=*/false,
c2_status);
if (c2_status != dwarf_reader::STATUS_OK)
{
cerr << "Failed to read elf file " << opts.elf2 << "\n";
return 1;
}
corpus_diff_sptr diff = compute_diff(c1, c2);
if (!diff)
{
cerr << "Could not compute ABI diff between elf files "
<< opts.elf1 << " and " << opts.elf2;
return 1;
}
if (opts.categorize_redundancy)
categorize_redundancy(diff);
if (opts.apply_filters)
apply_filters(diff);
print_diff_tree(diff, cout);
return 0;
}
return 1;
}
void
print_diff_tree(abigail::comparison::corpus_diff* diff_tree)
{
print_diff_tree(diff_tree, std::cout);
}
void
print_diff_tree(abigail::comparison::corpus_diff_sptr diff_tree)
{
print_diff_tree(diff_tree, std::cout);
}
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