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5df40e91ce
Directly using elfutils from abipkgdiff.cc feels like a taping into the wrong abstraction layer from this level. So this patch moves the determination of the type of elf file into abg-dwarf-reader.cc and uses it from there. The patch also simplifies the instantiation of types elf_file and package, from abipkgdiff.cc. * abg-dwarf-reader.h (enum elf_type): Move this declaration here from abipkgdiff.cc to here. (get_type_of_elf_file): Declare this new function. (get_soname_from_elf): Change this to take a path to the elf file rather than a Elf* handler. So now to use this, the user doesn't have to get her hand dirty with elfutils. * src/abg-dwarf-reader.cc (get_soname_from_elf): Change this to take a path to the elf file rather than a Elf* handler. (elf_file_type): Move this static function here, from abipkgdiff.cc. (get_type_of_elf_file): New function. This has been factorized out of create_maps_of_package_content() in abipkgdiff.cc. * tools/abipkgdiff.cc (class elf_file): Changed struct elf_file into this. Make the default constructor private. (elf_file::elf_file): Change the constructor to just take the path to the elf_file. The base name, soname and elf file type are now computed from the path file, in the constructor. This makes instantiation much much easier from the point of view of the user of the type. (struct abi_diff): Renamed struct abi_changes into this. (abi_diff::has_changes): Define new member function. (abi_diffs): Remove this global variable. (package::package): Remove the elf file type from the set of parameters of this constructor. Rather, compute that elf file type from the path to the elf file, in the constructor. Again, this eases the use of the type. (elf_file_type): Remove this from here, as it got moved to abg-dwarf-reader.cc. (compare): In the elf_file overload, return true if the comparison yields ABI changes. (create_maps_of_package_content): Do not fiddle with elfutils stuff here. Rather, just instantiate elf_file and the analyzing of the file magically happens. (compare): Make the package overload take an abi_diff as output parameter, rather than populating a global variable in return. (compare): Add an other overload for package that doesn't take the abi_diff as output parameter and write it in terms of the previous one. (main): Adjust as the instantiation of package is now simpler. Signed-off-by: Dodji Seketeli <dodji@redhat.com>
136 lines
3.2 KiB
C++
136 lines
3.2 KiB
C++
// -*- Mode: C++ -*-
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//
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// Copyright (C) 2013-2015 Red Hat, Inc.
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//
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// This file is part of the GNU Application Binary Interface Generic
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// Analysis and Instrumentation Library (libabigail). This library is
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// free software; you can redistribute it and/or modify it under the
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// terms of the GNU Lesser General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option) any
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// later version.
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Lesser Public License for more details.
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// You should have received a copy of the GNU Lesser General Public
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// License along with this program; see the file COPYING-LGPLV3. If
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// not, see <http://www.gnu.org/licenses/>.
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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 file contains the declarations of the entry points to
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/// de-serialize an instance of @ref abigail::corpus from a file in
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/// elf format, containing dwarf information.
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#include <ostream>
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#include <elfutils/libdwfl.h>
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#include "abg-corpus.h"
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#ifndef __ABG_DWARF_READER_H__
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#define __ABG_DWARF_READER_H__
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namespace abigail
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{
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namespace dwarf_reader
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{
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using namespace abigail::ir;
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/// The status of the @ref read_corpus_from_elf() call.
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enum status
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{
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/// The status is in an unknown state
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STATUS_UNKNOWN = 0,
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/// This status is for when the call went OK.
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STATUS_OK = 1,
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/// This satus is for when the debug info could not be read.
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STATUS_DEBUG_INFO_NOT_FOUND = 1 << 1,
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/// This status is for when the symbols of the ELF binaries could
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/// not be read.
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STATUS_NO_SYMBOLS_FOUND = 1 << 2,
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};
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status
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operator|(status, status);
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status
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operator&(status, status);
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status&
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operator|=(status&, status);
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status&
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operator&=(status&, status);
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/// The kind of ELF file we are looking at.
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enum elf_type
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{
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ELF_TYPE_EXEC,
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ELF_TYPE_DSO,
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ELF_TYPE_UNKNOWN
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};
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class read_context;
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/// A convenience typedef for a smart pointer to a
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/// dwarf_reader::read_context.
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typedef shared_ptr<read_context> read_context_sptr;
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read_context_sptr
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create_read_context(const std::string& elf_path,
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char** debug_info_root_path,
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bool read_all_types = false);
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corpus_sptr
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read_corpus_from_elf(read_context& ctxt,
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status&);
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corpus_sptr
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read_corpus_from_elf(const std::string& elf_path,
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char** debug_info_root_path,
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bool load_all_types,
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status&);
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bool
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lookup_symbol_from_elf(const string& elf_path,
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const string& symbol_name,
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bool demangle,
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vector<elf_symbol_sptr>& symbols);
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bool
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lookup_public_function_symbol_from_elf(const string& path,
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const string& symname,
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vector<elf_symbol_sptr>& func_syms);
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status
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has_alt_debug_info(read_context& elf_path,
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bool& has_alt_di,
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string& alt_debug_info_path);
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status
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has_alt_debug_info(const string& elf_path,
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char** debug_info_root_path,
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bool& has_alt_di,
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string& alt_debug_info_path);
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bool
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get_soname_of_elf_file(const string& path, string& soname);
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bool
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get_type_of_elf_file(const string& path, elf_type& type);
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}// end namespace dwarf_reader
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}// end namespace abigail
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#endif //__ABG_DWARF_READER_H__
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