mirror of
git://sourceware.org/git/libabigail.git
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c458e00db9
Remove the unneccessary includes of abg-cxx-compat.h as users have been migrated to use the corresponding standard includes. * include/abg-comparison.h: Remove include of abg-cxx-compat.h. * include/abg-diff-utils.h: Likewise. * include/abg-fwd.h: Likewise. * include/abg-ini.h: Likewise. * include/abg-interned-str.h: Likewise. * include/abg-ir.h: Likewise. * include/abg-libxml-utils.h: Likewise. * include/abg-libzip-utils.h: Likewise. * include/abg-regex.h: Likewise. * include/abg-reporter.h: Likewise. * include/abg-sptr-utils.h: Likewise. * include/abg-suppression.h: Likewise. * include/abg-tools-utils.h: Likewise. * include/abg-workers.h: Likewise. * src/abg-comp-filter.cc: Likewise. * src/abg-comparison-priv.h: Likewise. * src/abg-corpus.cc: Likewise. * src/abg-dwarf-reader.cc: Likewise. * src/abg-hash.cc: Likewise. * src/abg-ir.cc: Likewise. * src/abg-reader.cc: Likewise. * src/abg-suppression.cc: Likewise. * src/abg-tools-utils.cc: Likewise. * src/abg-writer.cc: Likewise. * tests/test-diff-suppr.cc: Likewise. * tests/test-read-write.cc: Likewise. * tools/abicompat.cc: Likewise. * tools/abidw.cc: Likewise. * tools/abilint.cc: Likewise. * tools/abipkgdiff.cc: Likewise. Signed-off-by: Matthias Maennich <maennich@google.com>
492 lines
14 KiB
C++
492 lines
14 KiB
C++
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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// -*- Mode: C++ -*-
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//
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// Copyright (C) 2013-2020 Red Hat, Inc.
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//
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// Author: Dodji Seketeli
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/// @file
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///
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/// This is a program aimed at checking that a binary instrumentation
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/// (bi) file is well formed and valid enough. It acts by loading an
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/// input bi file and saving it back to a temporary file. It then
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/// runs a diff on the two files and expects the result of the diff to
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/// be empty.
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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#include <fstream>
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#include <iostream>
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#include <memory>
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#include <string>
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#include <vector>
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#include "abg-config.h"
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#include "abg-tools-utils.h"
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#include "abg-ir.h"
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#include "abg-corpus.h"
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#include "abg-reader.h"
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#include "abg-dwarf-reader.h"
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#include "abg-writer.h"
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#include "abg-suppression.h"
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using std::string;
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using std::cerr;
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using std::cin;
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using std::cout;
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using std::ostream;
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using std::ofstream;
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using std::vector;
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using abigail::tools_utils::emit_prefix;
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using abigail::tools_utils::check_file;
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using abigail::tools_utils::file_type;
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using abigail::tools_utils::guess_file_type;
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using abigail::suppr::suppression_sptr;
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using abigail::suppr::suppressions_type;
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using abigail::suppr::read_suppressions;
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using abigail::corpus;
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using abigail::corpus_sptr;
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using abigail::xml_reader::read_translation_unit_from_file;
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using abigail::xml_reader::read_translation_unit_from_istream;
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using abigail::xml_reader::read_corpus_from_file;
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using abigail::xml_reader::read_corpus_from_native_xml;
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using abigail::xml_reader::read_corpus_from_native_xml_file;
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using abigail::xml_reader::read_corpus_group_from_input;
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using abigail::dwarf_reader::read_corpus_from_elf;
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using abigail::xml_writer::write_translation_unit;
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using abigail::xml_writer::write_context_sptr;
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using abigail::xml_writer::create_write_context;
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using abigail::xml_writer::write_corpus;
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using abigail::xml_writer::write_corpus_to_archive;
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struct options
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{
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string wrong_option;
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string file_path;
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bool display_version;
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bool read_from_stdin;
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bool read_tu;
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bool diff;
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bool noout;
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std::shared_ptr<char> di_root_path;
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vector<string> suppression_paths;
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string headers_dir;
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vector<string> header_files;
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options()
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: display_version(false),
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read_from_stdin(false),
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read_tu(false),
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diff(false),
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noout(false)
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{}
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};//end struct options;
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static void
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display_usage(const string& prog_name, ostream& out)
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{
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emit_prefix(prog_name, out)
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<< "usage: " << prog_name << " [options] [<abi-file1>]\n"
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<< " where options can be:\n"
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<< " --help display this message\n"
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<< " --version|-v display program version information and exit\n"
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<< " --debug-info-dir <path> the path under which to look for "
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<< " --headers-dir|--hd <patch> the path to headers of the elf file\n"
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"debug info for the elf <abi-file>\n"
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<< " --header-file|--hf <path> the path to one header of the elf file\n"
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"debug info for the elf <abi-file>\n"
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<< " --suppressions|--suppr <path> specify a suppression file\n"
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<< " --diff for xml inputs, perform a text diff between "
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"the input and the memory model saved back to disk\n"
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<< " --noout do not display anything on stdout\n"
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<< " --stdin|-- read abi-file content from stdin\n"
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<< " --tu expect a single translation unit file\n";
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}
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bool
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parse_command_line(int argc, char* argv[], options& opts)
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{
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if (argc < 2)
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{
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opts.read_from_stdin = true;
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return true;
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}
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for (int i = 1; i < argc; ++i)
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{
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if (argv[i][0] != '-')
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{
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if (opts.file_path.empty())
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opts.file_path = argv[i];
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else
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return false;
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}
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else if (!strcmp(argv[i], "--help"))
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return false;
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else if (!strcmp(argv[i], "--version")
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|| !strcmp(argv[i], "-v"))
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{
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opts.display_version = true;
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return true;
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}
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else if (!strcmp(argv[i], "--debug-info-dir"))
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{
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if (argc <= i + 1
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|| argv[i + 1][0] == '-')
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return false;
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// elfutils wants the root path to the debug info to be
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// absolute.
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opts.di_root_path =
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abigail::tools_utils::make_path_absolute(argv[i + 1]);
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++i;
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}
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else if (!strcmp(argv[i], "--headers-dir")
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|| !strcmp(argv[i], "--hd"))
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{
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int j = i + 1;
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if (j >= argc)
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return false;
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opts.headers_dir = argv[j];
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++i;
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}
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else if (!strcmp(argv[i], "--header-file")
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|| !strcmp(argv[i], "--hf"))
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{
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int j = i + 1;
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if (j >= argc)
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return false;
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opts.header_files.push_back(argv[j]);
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++i;
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}
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else if (!strcmp(argv[i], "--suppressions")
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|| !strcmp(argv[i], "--suppr"))
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{
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int j = i + 1;
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if (j >= argc)
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{
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opts.wrong_option = argv[i];
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return true;
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}
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opts.suppression_paths.push_back(argv[j]);
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++i;
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}
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else if (!strcmp(argv[i], "--stdin"))
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opts.read_from_stdin = true;
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else if (!strcmp(argv[i], "--tu"))
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opts.read_tu = true;
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else if (!strcmp(argv[i], "--diff"))
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opts.diff = true;
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else if (!strcmp(argv[i], "--noout"))
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opts.noout = true;
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else
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{
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if (strlen(argv[i]) >= 2 && argv[i][0] == '-' && argv[i][1] == '-')
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opts.wrong_option = argv[i];
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return false;
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}
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}
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if (opts.file_path.empty())
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opts.read_from_stdin = true;
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return true;
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}
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/// Check that the suppression specification files supplied are
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/// present. If not, emit an error on stderr.
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///
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/// @param opts the options instance to use.
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///
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/// @return true if all suppression specification files are present,
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/// false otherwise.
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static bool
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maybe_check_suppression_files(const options& opts)
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{
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for (vector<string>::const_iterator i = opts.suppression_paths.begin();
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i != opts.suppression_paths.end();
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++i)
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if (!check_file(*i, cerr, "abidiff"))
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return false;
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return true;
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}
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/// Set suppression specifications to the @p read_context used to load
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/// the ABI corpus from the ELF/DWARF file.
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///
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/// These suppression specifications are going to be applied to drop
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/// some ABI artifacts on the floor (while reading the ELF/DWARF file
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/// or the native XML ABI file) and thus minimize the size of the
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/// resulting ABI corpus.
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///
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/// @param read_ctxt the read context to apply the suppression
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/// specifications to. Note that the type of this parameter is
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/// generic (class template) because in practise, it can be either an
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/// abigail::dwarf_reader::read_context type or an
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/// abigail::xml_reader::read_context type.
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///
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/// @param opts the options where to get the suppression
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/// specifications from.
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template<class ReadContextType>
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static void
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set_suppressions(ReadContextType& read_ctxt, const options& opts)
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{
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suppressions_type supprs;
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for (vector<string>::const_iterator i = opts.suppression_paths.begin();
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i != opts.suppression_paths.end();
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++i)
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read_suppressions(*i, supprs);
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suppression_sptr suppr =
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abigail::tools_utils::gen_suppr_spec_from_headers(opts.headers_dir,
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opts.header_files);
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if (suppr)
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supprs.push_back(suppr);
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add_read_context_suppressions(read_ctxt, supprs);
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}
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/// Reads a bi (binary instrumentation) file, saves it back to a
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/// temporary file and run a diff on the two versions.
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int
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main(int argc, char* argv[])
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{
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options opts;
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if (!parse_command_line(argc, argv, opts))
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{
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if (!opts.wrong_option.empty())
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emit_prefix(argv[0], cerr)
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<< "unrecognized option: " << opts.wrong_option << "\n";
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display_usage(argv[0], cerr);
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return 1;
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}
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if (opts.display_version)
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{
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emit_prefix(argv[0], cout)
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<< abigail::tools_utils::get_library_version_string();
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return 0;
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}
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if (!maybe_check_suppression_files(opts))
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return 1;
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abigail::ir::environment_sptr env(new abigail::ir::environment);
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if (opts.read_from_stdin)
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{
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if (!cin.good())
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return 1;
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if (opts.read_tu)
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{
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abigail::translation_unit_sptr tu =
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read_translation_unit_from_istream(&cin, env.get());
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if (!tu)
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{
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emit_prefix(argv[0], cerr)
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<< "failed to read the ABI instrumentation from stdin\n";
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return 1;
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}
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if (!opts.noout)
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{
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const write_context_sptr& ctxt
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= create_write_context(tu->get_environment(), cout);
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write_translation_unit(*ctxt, *tu, 0);
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}
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return 0;
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}
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else
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{
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abigail::xml_reader::read_context_sptr ctxt =
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abigail::xml_reader::create_native_xml_read_context(&cin,
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env.get());
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assert(ctxt);
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set_suppressions(*ctxt, opts);
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corpus_sptr corp = abigail::xml_reader::read_corpus_from_input(*ctxt);
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if (!opts.noout)
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{
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const write_context_sptr& ctxt
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= create_write_context(corp->get_environment(), cout);
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write_corpus(*ctxt, corp, /*indent=*/0);
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}
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return 0;
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}
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}
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else if (!opts.file_path.empty())
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{
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if (!check_file(opts.file_path, cerr, argv[0]))
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return 1;
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abigail::translation_unit_sptr tu;
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abigail::corpus_sptr corp;
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abigail::corpus_group_sptr group;
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abigail::dwarf_reader::status s = abigail::dwarf_reader::STATUS_OK;
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char* di_root_path = 0;
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file_type type = guess_file_type(opts.file_path);
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switch (type)
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{
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case abigail::tools_utils::FILE_TYPE_UNKNOWN:
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emit_prefix(argv[0], cerr)
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<< "Unknown file type given in input: " << opts.file_path;
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return 1;
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case abigail::tools_utils::FILE_TYPE_NATIVE_BI:
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tu = read_translation_unit_from_file(opts.file_path, env.get());
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break;
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case abigail::tools_utils::FILE_TYPE_ELF:
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case abigail::tools_utils::FILE_TYPE_AR:
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{
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di_root_path = opts.di_root_path.get();
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vector<char**> di_roots;
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di_roots.push_back(&di_root_path);
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abigail::dwarf_reader::read_context_sptr ctxt =
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abigail::dwarf_reader::create_read_context(opts.file_path,
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di_roots, env.get(),
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/*load_all_types=*/false);
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assert(ctxt);
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set_suppressions(*ctxt, opts);
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corp = read_corpus_from_elf(*ctxt, s);
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}
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break;
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case abigail::tools_utils::FILE_TYPE_XML_CORPUS:
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{
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abigail::xml_reader::read_context_sptr ctxt =
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abigail::xml_reader::create_native_xml_read_context(opts.file_path,
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env.get());
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assert(ctxt);
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set_suppressions(*ctxt, opts);
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corp = read_corpus_from_input(*ctxt);
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break;
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}
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case abigail::tools_utils::FILE_TYPE_XML_CORPUS_GROUP:
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{
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abigail::xml_reader::read_context_sptr ctxt =
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abigail::xml_reader::create_native_xml_read_context(opts.file_path,
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env.get());
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assert(ctxt);
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set_suppressions(*ctxt, opts);
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group = read_corpus_group_from_input(*ctxt);
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}
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break;
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case abigail::tools_utils::FILE_TYPE_ZIP_CORPUS:
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#if WITH_ZIP_ARCHIVE
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corp = read_corpus_from_file(opts.file_path);
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#endif
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break;
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case abigail::tools_utils::FILE_TYPE_RPM:
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break;
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case abigail::tools_utils::FILE_TYPE_SRPM:
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break;
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case abigail::tools_utils::FILE_TYPE_DEB:
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break;
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case abigail::tools_utils::FILE_TYPE_DIR:
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break;
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case abigail::tools_utils::FILE_TYPE_TAR:
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break;
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}
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if (!tu && !corp && !group)
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{
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emit_prefix(argv[0], cerr)
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<< "failed to read " << opts.file_path << "\n";
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if (!(s & abigail::dwarf_reader::STATUS_OK))
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{
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if (s & abigail::dwarf_reader::STATUS_DEBUG_INFO_NOT_FOUND)
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{
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cerr << "could not find the debug info";
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if(di_root_path == 0)
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emit_prefix(argv[0], cerr)
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<< " Maybe you should consider using the "
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"--debug-info-dir1 option to tell me about the "
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"root directory of the debuginfo? "
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"(e.g, --debug-info-dir1 /usr/lib/debug)\n";
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else
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emit_prefix(argv[0], cerr)
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<< "Maybe the root path to the debug "
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"information is wrong?\n";
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}
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if (s & abigail::dwarf_reader::STATUS_NO_SYMBOLS_FOUND)
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emit_prefix(argv[0], cerr)
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<< "could not find the ELF symbols in the file "
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<< opts.file_path
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<< "\n";
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}
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return 1;
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}
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using abigail::tools_utils::temp_file;
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using abigail::tools_utils::temp_file_sptr;
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temp_file_sptr tmp_file = temp_file::create();
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if (!tmp_file)
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{
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emit_prefix(argv[0], cerr) << "failed to create temporary file\n";
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return 1;
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}
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std::ostream& of = opts.diff ? tmp_file->get_stream() : cout;
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const abigail::ir::environment* env = 0;
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if (tu)
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env = tu->get_environment();
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else if (corp)
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env = corp->get_environment();
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else if (group)
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env = group->get_environment();
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ABG_ASSERT(env);
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const write_context_sptr ctxt = create_write_context(env, of);
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bool is_ok = true;
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if (tu)
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{
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if (!opts.noout)
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is_ok = write_translation_unit(*ctxt, *tu, 0);
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}
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else
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{
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if (type == abigail::tools_utils::FILE_TYPE_XML_CORPUS
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||type == abigail::tools_utils::FILE_TYPE_XML_CORPUS_GROUP
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|| type == abigail::tools_utils::FILE_TYPE_ELF)
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{
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if (!opts.noout)
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is_ok = write_corpus(*ctxt, corp, 0);
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}
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else if (type == abigail::tools_utils::FILE_TYPE_ZIP_CORPUS)
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{
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#ifdef WITH_ZIP_ARCHIVE
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if (!opts.noout)
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is_ok = write_corpus_to_archive(*corp, tmp_file->get_path());
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#endif //WITH_ZIP_ARCHIVE
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}
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}
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if (!is_ok)
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{
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string output =
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(type == abigail::tools_utils::FILE_TYPE_NATIVE_BI)
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? "translation unit"
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: "ABI corpus";
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emit_prefix(argv[0], cerr)
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<< "failed to write the translation unit "
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<< opts.file_path << " back\n";
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}
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|
|
if (is_ok
|
|
&& opts.diff
|
|
&& ((type == abigail::tools_utils::FILE_TYPE_XML_CORPUS)
|
|
||type == abigail::tools_utils::FILE_TYPE_XML_CORPUS_GROUP
|
|
|| type == abigail::tools_utils::FILE_TYPE_NATIVE_BI
|
|
|| type == abigail::tools_utils::FILE_TYPE_ZIP_CORPUS))
|
|
{
|
|
string cmd = "diff -u " + opts.file_path + " " + tmp_file->get_path();
|
|
if (system(cmd.c_str()))
|
|
is_ok = false;
|
|
}
|
|
|
|
return is_ok ? 0 : 1;
|
|
}
|
|
|
|
return 1;
|
|
}
|