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e5cf9d1f60
When computing the set of added function or variable symbols, if a
symbol S with no version symbol was present in a given corpus and that
symbol gained a *DEFAULT* version V in the second corpus, we should
not consider that a new symbol S was added (and that the former S was
removed) because:
1/ S was already present in the first corpus
2/ applications linked to the first corpus and that were using S
(with no version) there, will automatically use the S with version V
in the second corpus, without needing any re-linking; the
power of symbol versioning!
Rather, it's just that S gained a default symbol version.
This patch implements that.
* include/abg-corpus.h (corpus::{lookup_function_symbol,
lookup_variable_symbol}): Take a elf_symbol::version object,
rather than a string representing the version. Add an overload
that takes an elf_symbol.
* src/abg-corpus.cc (find_symbol_by_version): New static function.
(corpus::{lookup_function_symbol, lookup_variable_symbol}): Take a
elf_symbol::version object, rather than a string representing the
version. Add an overload that takes an elf_symbol. If the looked
up symbol has no version and if the corpus contains a symbol with
the same name and with a default version, then return that latter
symbol if the corpus doesn't contain a symbol with the same name
and empty version.
* src/abg-comparison.cc
(class_diff::ensure_lookup_tables_populated): Adjust.
(corpus_diff::priv::ensure_lookup_tables_populated): Before
deciding that a symbol has been added, if the symbol has a default
version, make sure no symbol with the same name and without
version was present in the former corpus. Similarly, before
deciding that a symbol has been removed, if the symbol has no
version, make sure the latter corpus has no symbol with the same
name and with a default version.
* tests/data/test-diff-dwarf/test12-report.txt: Adjust. The
function should not be considered as added, because its symbol
(and version) was already present in the former DSO.
Signed-off-by: Dodji Seketeli <dodji@redhat.com>
319 lines
7.2 KiB
C++
319 lines
7.2 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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/// @file
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#ifndef __ABG_CORPUS_H__
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#define __ABG_CORPUS_H__
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#include <abg-ir.h>
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namespace abigail
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{
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namespace ir
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{
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class corpus;
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/// A convenience typedef for shared pointer to @ref corpus.
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typedef shared_ptr<corpus> corpus_sptr;
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/// This is the abstraction of a set of translation units (themselves
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/// seen as bundles of unitary abi artefacts like types and decls)
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/// bundled together as a corpus. A corpus is thus the Application
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/// binary interface of a program, a library or just a set of modules
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/// put together.
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class corpus
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{
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public:
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struct priv;
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/// Convenience typedef for shared_ptr of corpus::priv
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typedef shared_ptr<priv> priv_sptr;
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/// A convenience typedef for std::vector<string>.
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typedef vector<string> strings_type;
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/// Convenience typedef for std::vector<abigail::ir::function_decl*>
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typedef vector<function_decl*> functions;
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///Convenience typedef for std::vector<abigail::ir::var_decl*>
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typedef vector<var_decl*> variables;
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class exported_decls_builder;
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/// Convenience typedef for shared_ptr<exported_decls_builder>.
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typedef shared_ptr<exported_decls_builder> exported_decls_builder_sptr;
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/// This abstracts where the corpus comes from. That is, either it
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/// has been read from the native xml format, from DWARF or built
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/// artificially using the library's API.
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enum origin
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{
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ARTIFICIAL_ORIGIN = 0,
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NATIVE_XML_ORIGIN,
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DWARF_ORIGIN
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};
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private:
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shared_ptr<priv> priv_;
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corpus();
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public:
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corpus(const string&);
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void
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add(const translation_unit_sptr);
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const translation_units&
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get_translation_units() const;
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void
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drop_translation_units();
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origin
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get_origin() const;
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void
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set_origin(origin);
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string&
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get_path() const;
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void
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set_path(const string&);
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const vector<string>&
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get_needed() const;
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void
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set_needed(const vector<string>&);
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const string&
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get_soname();
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void
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set_soname(const string&);
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const string&
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get_architecture_name();
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void
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set_architecture_name(const string&);
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bool
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is_empty() const;
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bool
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operator==(const corpus&) const;
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void
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set_fun_symbol_map(string_elf_symbols_map_sptr);
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void
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set_undefined_fun_symbol_map(string_elf_symbols_map_sptr);
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void
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set_var_symbol_map(string_elf_symbols_map_sptr);
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void
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set_undefined_var_symbol_map(string_elf_symbols_map_sptr);
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const string_elf_symbols_map_sptr
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get_fun_symbol_map_sptr() const;
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const string_elf_symbols_map_type&
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get_fun_symbol_map() const;
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const string_elf_symbols_map_sptr
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get_undefined_fun_symbol_map_sptr() const;
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const string_elf_symbols_map_type&
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get_undefined_fun_symbol_map() const;
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const elf_symbols&
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get_sorted_fun_symbols() const;
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const elf_symbols&
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get_sorted_undefined_fun_symbols() const;
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const string_elf_symbols_map_sptr
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get_var_symbol_map_sptr() const;
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const string_elf_symbols_map_type&
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get_var_symbol_map() const;
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const string_elf_symbols_map_sptr
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get_undefined_var_symbol_map_sptr() const;
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const string_elf_symbols_map_type&
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get_undefined_var_symbol_map() const;
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const elf_symbols&
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get_sorted_var_symbols() const;
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const elf_symbols&
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get_sorted_undefined_var_symbols() const;
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const elf_symbol_sptr
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lookup_function_symbol(const string& n) const;
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const elf_symbol_sptr
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lookup_function_symbol(const string& symbol_name,
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const elf_symbol::version& version) const;
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const elf_symbol_sptr
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lookup_function_symbol(const elf_symbol& symbol) const;
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const elf_symbol_sptr
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lookup_variable_symbol(const string& n) const;
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const elf_symbol_sptr
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lookup_variable_symbol(const string& symbol_name,
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const elf_symbol::version& version) const;
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const elf_symbol_sptr
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lookup_variable_symbol(const elf_symbol& symbol) const;
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const functions&
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get_functions() const;
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void
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sort_functions();
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const variables&
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get_variables() const;
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void
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sort_variables();
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const elf_symbols&
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get_unreferenced_function_symbols() const;
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const elf_symbols&
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get_unreferenced_variable_symbols() const;
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vector<string>&
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get_regex_patterns_of_fns_to_suppress();
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const vector<string>&
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get_regex_patterns_of_fns_to_suppress() const;
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vector<string>&
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get_regex_patterns_of_vars_to_suppress();
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const vector<string>&
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get_regex_patterns_of_vars_to_suppress() const;
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vector<string>&
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get_regex_patterns_of_fns_to_keep();
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const vector<string>&
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get_regex_patterns_of_fns_to_keep() const;
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vector<string>&
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get_sym_ids_of_fns_to_keep();
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const vector<string>&
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get_sym_ids_of_fns_to_keep() const;
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vector<string>&
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get_regex_patterns_of_vars_to_keep();
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const vector<string>&
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get_regex_patterns_of_vars_to_keep() const;
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vector<string>&
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get_sym_ids_of_vars_to_keep();
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const vector<string>&
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get_sym_ids_of_vars_to_keep() const;
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void
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maybe_drop_some_exported_decls();
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exported_decls_builder_sptr
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get_exported_decls_builder() const;
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};// end class corpus.
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/// Abstracts the building of the set of exported variables and
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/// functions.
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///
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/// Given a function or variable, this type can decide if it belongs
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/// to the list of exported functions and variables based on all the
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/// parameters needed.
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class corpus::exported_decls_builder
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{
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public:
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class priv;
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/// Convenience typedef for shared_ptr<priv>
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typedef shared_ptr<priv> priv_sptr;
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/// Convenience typedef for a hash map which key is a string an
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/// which data is an abigail::ir::function_decl*
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typedef unordered_map<string, function_decl*> str_fn_ptr_map_type;
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/// Convenience typedef for a hash map which key is a string and
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/// which data is an abigail::ir::var_decl*.
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typedef unordered_map<string, var_decl*> str_var_ptr_map_type;
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friend class corpus;
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private:
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priv_sptr priv_;
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// Forbid default construction.
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exported_decls_builder();
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public:
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exported_decls_builder(functions& fns,
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variables& vars,
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strings_type& fns_suppress_regexps,
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strings_type& vars_suppress_regexps,
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strings_type& fns_keep_regexps,
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strings_type& vars_keep_regexps,
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strings_type& sym_id_of_fns_to_keep,
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strings_type& sym_id_of_vars_to_keep);
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const functions&
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exported_functions() const;
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functions&
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exported_functions();
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const variables&
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exported_variables() const;
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variables&
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exported_variables();
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void
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maybe_add_fn_to_exported_fns(function_decl*);
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void
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maybe_add_var_to_exported_vars(var_decl*);
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}; //corpus::exported_decls_builder
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}// end namespace ir
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}//end namespace abigail
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#endif //__ABG_CORPUS_H__
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