libabigail/tests/test-diff-dwarf.cc

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// -*- Mode: C++ -*-
//
Update copyright years * include/abg-comp-filter.h: Update copyright years. * include/abg-comparison.h: Likewise. * include/abg-config.h: Likewise. * include/abg-corpus.h: Likewise. * include/abg-diff-utils.h: Likewise. * include/abg-dwarf-reader.h: Likewise. * include/abg-fwd.h: Likewise. * include/abg-hash.h: Likewise. * include/abg-ini.h: Likewise. * include/abg-ir.h: Likewise. * include/abg-libxml-utils.h: Likewise. * include/abg-libzip-utils.h: Likewise. * include/abg-reader.h: Likewise. * include/abg-sptr-utils.h: Likewise. * include/abg-traverse.h: Likewise. * include/abg-viz-common.h: Likewise. * include/abg-viz-dot.h: Likewise. * include/abg-viz-svg.h: Likewise. * include/abg-writer.h: Likewise. * src/abg-comp-filter.cc: Likewise. * src/abg-comparison.cc: Likewise. * src/abg-config.cc: Likewise. * src/abg-corpus.cc: Likewise. * src/abg-diff-utils.cc: Likewise. * src/abg-dwarf-reader.cc: Likewise. * src/abg-hash.cc: Likewise. * src/abg-ini.cc: Likewise. * src/abg-ir.cc: Likewise. * src/abg-libxml-utils.cc: Likewise. * src/abg-libzip-utils.cc: Likewise. * src/abg-reader.cc: Likewise. * src/abg-traverse.cc: Likewise. * src/abg-viz-common.cc: Likewise. * src/abg-viz-dot.cc: Likewise. * src/abg-viz-svg.cc: Likewise. * src/abg-writer.cc: Likewise. * tests/print-diff-tree.cc: Likewise. * tests/test-abidiff.cc: Likewise. * tests/test-alt-dwarf-file.cc: Likewise. * tests/test-core-diff.cc: Likewise. * tests/test-diff-dwarf.cc: Likewise. * tests/test-diff-filter.cc: Likewise. * tests/test-diff-suppr.cc: Likewise. * tests/test-diff2.cc: Likewise. * tests/test-ir-walker.cc: Likewise. * tests/test-lookup-syms.cc: Likewise. * tests/test-read-dwarf.cc: Likewise. * tests/test-read-write.cc: Likewise. * tests/test-utils.cc: Likewise. * tests/test-utils.h: Likewise. * tests/test-write-read-archive.cc: Likewise. * tools/abg-tools-utils.cc: Likewise. * tools/abg-tools-utils.h: Likewise. * tools/abiar.cc: Likewise. * tools/abidiff.cc: Likewise. * tools/abidw.cc: Likewise. * tools/abilint.cc: Likewise. * tools/abisym.cc: Likewise. * tools/binilint.cc: Likewise. Signed-off-by: Dodji Seketeli <dodji@redhat.com>
2015-01-07 12:53:58 +00:00
// Copyright (C) 2013-2015 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
/// @file
///
/// This program runs a diff between input dwarf files and compares
/// the resulting report with a reference report. If the resulting
/// report is different from the reference report, the test has
/// failed. Note that the comparison is done using the libabigail
/// library directly.
///
/// The set of input files and reference reports to consider should be
/// present in the source distribution.
#include <string>
#include <fstream>
#include <iostream>
#include <cstdlib>
#include "abg-tools-utils.h"
#include "test-utils.h"
#include "abg-dwarf-reader.h"
#include "abg-comparison.h"
using std::string;
using std::ofstream;
using std::cerr;
/// This is an aggregate that specifies where a test shall get its
/// input from and where it shall write its ouput to.
struct InOutSpec
{
const char* in_elfv0_path;
const char* in_elfv1_path;
const char* in_report_path;
const char* out_report_path;
};// end struct InOutSpec
InOutSpec in_out_specs[] =
{
{
"data/test-diff-dwarf/test0-v0.o",
"data/test-diff-dwarf/test0-v1.o",
"data/test-diff-dwarf/test0-report.txt",
"output/test-diff-dwarf/test0-report.txt"
},
{
"data/test-diff-dwarf/test1-v0.o",
"data/test-diff-dwarf/test1-v1.o",
"data/test-diff-dwarf/test1-report.txt",
"output/test-diff-dwarf/test1-report.txt"
},
2014-04-01 10:38:51 +00:00
{
"data/test-diff-dwarf/test2-v0.o",
"data/test-diff-dwarf/test2-v1.o",
"data/test-diff-dwarf/test2-report.txt",
"output/test-diff-dwarf/test2-report.txt"
},
{
"data/test-diff-dwarf/test3-v0.o",
"data/test-diff-dwarf/test3-v1.o",
"data/test-diff-dwarf/test3-report.txt",
"output/test-diff-dwarf/test3-report.txt"
},
{
"data/test-diff-dwarf/test3-v0.o",
"data/test-diff-dwarf/test3-v1.o",
"data/test-diff-dwarf/test3-report.txt",
"output/test-diff-dwarf/test3-report.txt"
},
{
"data/test-diff-dwarf/test4-v0.o",
"data/test-diff-dwarf/test4-v1.o",
"data/test-diff-dwarf/test4-report.txt",
"output/test-diff-dwarf/test4-report.txt"
},
Represent a removed+added data member at a given offset as changed * include/abg-fwd.h (get_data_member_offset): Declare new overload for decl_base_sptr. * include/abg-comparison.h (unsigned_decl_base_sptr_map) (unsigned_changed_type_or_decl_map): New typedefs. * src/abg-ir.cc (get_data_member_offset): Define new overload for decl_base_sptr. * src/abg-comparison.cc (diff_kind::subtype_change_kind): New enumerator for a change about a type or sub-type of a member of a structure/enum. (report_mem_header): Handle the new enumerator above. (class_diff::priv::{deleted_dm_by_offset_, inserted_dm_by_offset_, changed_dm_}): New data members. (class_diff::priv::subtype_changed_dm_): Renamed class_diff::priv::changed_data_members_ into this. (class_diff::priv::subtype_changed_dm): Renamed class_diff::priv::data_member_has_changed into this. Adjust. (class_diff::count_filtered_subtype_changed_dm): Renamed count_filtered_data_members into this. Adjust. (class_diff::priv::count_filtered_changed_dm): New member function. (class_diff::lookup_tables_empty): Adjust. (class_diff::ensure_lookup_tables_populated): Adjust. Detect when a data member is deleted and added back to offset N, and be prepared to present that as a change of data member at offset N. (class_diff::report): Adjust. Report data members of a given offset that have changed. * tests/data/test-diff-dwarf/test6-report.txt: New reference report for new test input. * tests/data/test-diff-dwarf/test6-v0.cc: Source code for new test input binary. * tests/data/test-diff-dwarf/test6-v0.o: New test input binary. * tests/data/test-diff-dwarf/test6-v1.cc: Source code for new test input binary. * tests/data/test-diff-dwarf/test6-v1.o: New test input binary. * tests/test-diff-dwarf.cc: Adjust to include the new test inputs above. Signed-off-by: Dodji Seketeli <dodji@redhat.com>
2014-04-11 14:52:00 +00:00
{
"data/test-diff-dwarf/test5-v0.o",
"data/test-diff-dwarf/test5-v1.o",
"data/test-diff-dwarf/test5-report.txt",
"output/test-diff-dwarf/test5-report.txt"
},
{
"data/test-diff-dwarf/test6-v0.o",
"data/test-diff-dwarf/test6-v1.o",
"data/test-diff-dwarf/test6-report.txt",
"output/test-diff-dwarf/test6-report.txt"
},
{
"data/test-diff-dwarf/test7-v0.o",
"data/test-diff-dwarf/test7-v1.o",
"data/test-diff-dwarf/test7-report.txt",
"output/test-diff-dwarf/test7-report.txt"
},
{
"data/test-diff-dwarf/test8-v0.o",
"data/test-diff-dwarf/test8-v1.o",
"data/test-diff-dwarf/test8-report.txt",
"output/test-diff-dwarf/test8-report.txt"
},
Support TLS variables * src/abg-ir.cc (elf_symbol::is_variable): Accept TLS objects as variables too. * src/abg-dwarf-reader.cc (eval_last_constant_dwarf_sub_expr) (die_location_address): Add an output parameter to say if the resulting constant value is a tls address or not. (lookup_public_variable_symbol_from_elf): Use the proper elf_symbol::is_variable() method, rather than trying to figure out the low levels of what a variable is here. Also, cleanup the condition. (read_context::load_symbol_maps): Consider symbols of type STT_TLS, when loading symbols for variables. Also, to avoir symbols that are for versions, filter out symbols of type STT_OBJECT and with a SHN_ABS section index. (read_context::get_variable_address): If the address is for a tls variable, do no try to adjust the address to arrange for things like prelink. As that doesn't seem to affect TLS variables. (dwarf_expr_eval_context::set_tls_addr): New data member. (dwarf_expr_eval_context::dwarf_expr_eval_context): Initialize it. (dwarf_expr_eval_context::set_tls_address): New accessors. (dwarf_expr_eval_context::op_manipulates_stack): Handle DW_OP_GNU_push_tls_address, a bit like DW_OP_form_tls_address, but then, its result is a constant. Set the dwarf_expr_eval_context::set_tls_addr flag when these two OPs are run. (die_member_offset): Adjust to the new signature of eval_last_constant_dwarf_sub_expr. * tests/data/test-diff-dwarf/libtest9-v0.so: New test input. * tests/data/test-diff-dwarf/libtest9-v1.so: Likewise. * tests/data/test-diff-dwarf/test9-report.txt: Likewise * tests/data/test-diff-dwarf/test9-v0.cc: Source code for the first input. * tests/data/test-diff-dwarf/test9-v1.cc: Source code for the second input. * tests/test-diff-dwarf.cc: Run this harness on the two new inputs above. * tests/Makefile.am: Add the new inputs to the source distribution. Signed-off-by: Dodji Seketeli <dodji@redhat.com>
2014-08-19 09:08:36 +00:00
{
"data/test-diff-dwarf/libtest9-v0.so",
"data/test-diff-dwarf/libtest9-v1.so",
"data/test-diff-dwarf/test9-report.txt",
"output/test-diff-dwarf/test9-report.txt"
},
Support C and C++ array type. * include/abg-comparison.h (array_diff): Declare new class. (array_diff_sptr): Shared pointer to type array_diff. (compute_diff): Overload the function to take type array_diff_sptr as the first two arguments. * include/abg-fwd.h (array_type_def): Declare new class. (subrange_type): Likewise. (is_array_def): Declare new function. * include/abg-ir.h (array_type_def_sptr): Shared pointer to type array_type_def. (array_type_def): Declare new class. (ir_node_visitor::visit): Declare a new virtual function taking a pointer to type array_type_def as an argument. * src/abg-comparison.cc (compute_diff_for_types): Add try_to_diff for two instances of type array_type_def. (array_diff::priv): declare struct for holding private members of type array_diff. (array_diff::array_diff): Define constructor. (array_diff::{first,second}_array):Define new member functions. (array_diff::element_type_diff): Likewise. (array_diff::{length,report,traverse}): Likewise. (compute_diff): Define function overloaded in include/abg-comparison.h. * src/abg-dwarf-reader.cc (build_array_type): Define new function. Handle DW_TAG_array_type and DW_TAG_subrange type. (build_ir_node_from_die): Amend case DW_TAG_array_type with a call to build_array_type. * src/abg-hash.cc (array_type_def::hash): Declare new struct. (type_base::dynamic_hash::operator()): Attempt to dynamic_cast the argument to type array_type_def as well. (array_type_def::hash): Declare new struct. * src/abg-ir.cc (array_type_def::array_type_def): Define constructors. (array_type_def::priv): declare struct for holding private members of type array_type_def. (array_type_def::operator==(const decl_base&): Define new operator. (array_type_def::operator==(const type_base&): Likewise. (array_type_def::append_subrange{,s}): Define new functions. (array_type_def::{set,get}_size_in_bits): Likewise. (array_type_def::get_dimension_count): Likewise. (array_type_def::get_qualified_name): Likewise. (array_type_def::get_pretty_representation): Likewise. (array_type_def::get_subrange_representation): Likewise. (array_type_def::traverse): Likewise. (array_type_def::get_{element_type,location,subranges}): Likewise. (array_type_def::is_infinite): Likewise. (array_type_def::~array_type_def): Define destructor. (ir_node_visitor::visit): Define function, taking pointer to array_type_def as an argument. * src/abg-reader.cc (map_id_and_node): Check if node is an array. (is_array_def): Check if object is an array. (handle_element_node): Handle array_type_def as well. (build_subrange_type): Define new function. (build_array_type_def): Likewise. (build_type): Build type array_type_def as well. (build_type_composition): Likewise. (handle_array_type_def): Define new function. * src/abg-writer.cc: (write_decl): Output arrays as well. (write_member_type): Likewise. (write_type_composition): Likewise. (write_array_type_def): Define new function. * tests/data/test-diff-dwarf/test{10,11}-v{0,1}.{cc,o}: New test source files * tests/data/test-diff-dwarf/test{10,11}-report.txt: Likewise. * tests/data/test-diff-dwarf/test10-report.txt: New test input. * tests/data/test-read-dwarf/test7.cc: New test source file. * tests/data/test-read-dwarf/test7.so: New input binary to read. * tests/data/test-read-dwarf/test7.so.abi: New reference test to compare against. * tests/data/test-read-write/test25.xml: New test source file. * tests/test-diff-dwarf.cc: Adjust to launch the new test. * tests/test-read-dwarf.cc: Likewise. * tests/test-read-write.cc: Likewise. * test/Makefile.am: Add the new test inputs to the source distribution. Signed-off-by: Ondrej Oprala <ooprala@redhat.com> Signed-off-by: Dodji Seketeli <dodji@redhat.com>
2014-08-18 09:56:43 +00:00
{
"data/test-diff-dwarf/test10-v0.o",
"data/test-diff-dwarf/test10-v1.o",
"data/test-diff-dwarf/test10-report.txt",
"output/test-diff-dwarf/test10-report.txt"
},
{
"data/test-diff-dwarf/test11-v0.o",
"data/test-diff-dwarf/test11-v1.o",
"data/test-diff-dwarf/test11-report.txt",
"output/test-diff-dwarf/test11-report.txt"
},
{
"data/test-diff-dwarf/libtest12-v0.so",
"data/test-diff-dwarf/libtest12-v1.so",
"data/test-diff-dwarf/test12-report.txt",
"output/test-diff-dwarf/test12-report.txt"
},
{
"data/test-diff-dwarf/test13-v0.o",
"data/test-diff-dwarf/test13-v1.o",
"data/test-diff-dwarf/test13-report.txt",
"output/test-diff-dwarf/test13-report.txt"
},
Better support for inline related diffs * include/abg-comparison.h (diff_category::HARMLESS_SYMBOL_ALIAS_CHANGE_CATEORY): New enumerator. (diff_category::EVERYTHING_CATEGORY): Adjust. * include/abg-ir.h (elf_symbol::get_aliases_id_string) (elf_symbol::does_alias, elf_symbols_alias) (compute_aliases_for_elf_symbol): Declare new functions ... * src/abg-ir.cc (elf_symbol::get_aliases_id_string) (elf_symbol::does_alias, elf_symbols_alias) (compute_aliases_for_elf_symbol): ... and define them. (function_decl::operator==): Take in account elf symbol aliases. * src/abg-comp-filter.cc (function_name_changed_but_not_symbol): Define new static functions. (harmless_filter::visit): Categorize function name changes that n doesn't impact underlying elf symbols (or the fact that two symbols were aliases and are not anymore) as harmless. * src/abg-comparison.cc (function_decl_diff::report): Properly report function name changes, or symbol aliases changes for that matter. Also report inline-ness declaration changes. * src/abg-dwarf-reader.cc (die_is_declared_inline): New static function. (build_function_decl): Use the above. * tools/bidiff.cc (set_diff_context_from_opts): Add abigail::comparison::HARMLESS_SYMBOL_ALIAS_CHANGE_CATEORY into the harmless change camp. * tests/data/test-diff-dwarf/test14-inline-report.txt: New test input. * tests/data/test-diff-dwarf/test14-inline-v0.o: Likewise. * tests/data/test-diff-dwarf/test14-inline-v1.o: Likewise. * tests/data/test-diff-dwarf/test14-inline-v0.cc: Source code for test input. * tests/data/test-diff-dwarf/test14-inline-v1.cc: Source code for test input. * tests/test-diff-dwarf.cc: Run this test harness over the new input above. * tests/data/test-diff-filter/test20-inline-report-0.txt: Likewise. * tests/data/test-diff-filter/test20-inline-report-1.txt: Likewise. * tests/data/test-diff-filter/test20-inline-v0.o: New test input. * tests/data/test-diff-filter/test20-inline-v1.o: New test input. * tests/data/test-diff-filter/test20-inline-v0.cc: Source code for test input. * tests/data/test-diff-filter/test20-inline-v1.cc: Likewise. * tests/test-diff-filter.cc: Run this test harness over the new input above. Signed-off-by: Dodji Seketeli <dodji@redhat.com>
2014-09-16 12:53:30 +00:00
{
"data/test-diff-dwarf/test14-inline-v0.o",
"data/test-diff-dwarf/test14-inline-v1.o",
"data/test-diff-dwarf/test14-inline-report.txt",
"output/test-diff-dwarf/test14-inline-report.txt"
},
Better support for enum diffs * include/abg-comparison.h (changed_enumerator_type): New typedef. (diff_category::{HARMLESS_ENUM_CHANGE_CATEGORY}): New enumerator. * src/abg-comp-filter.cc (has_type_size_change) (has_enumerator_insertion, has_enumerator_removal_or_change) (has_harmful_enum_change): New functions. (harmless_filter::visit): Categorize enumerator insertions that don't change the size of the type into HARMLESS_ENUM_CHANGE_CATEGORY. (harmful_filter::visit): Categorize enumerator removal or any enum change that changes the size of the type into SIZE_OR_OFFSET_CHANGE_CATEGORY. * src/abg-comparison.cc (enumerator_value_comp) (changed_enumerator_comp): New types. (sort_enumerators, sort_changed_enumerators): New static functions. (enum_diff::report): Sort enum related reports by the value of the enumerators. * src/abg-dwarf-reader.cc (build_enum_type): Name anonymous enums as __anonymous_enum__. * tools/bidiff.cc (set_diff_context_from_opts): Add abigail::comparison::HARMLESS_ENUM_CHANGE_CATEGORY into the harmless stuff camp. * tests/data/test-diff-dwarf/test15-enum-report.txt: New test input. * tests/data/test-diff-dwarf/test15-enum-v1.o: Likewise. * tests/data/test-diff-dwarf/test15-enum-v0.o: Likewise. * tests/data/test-diff-dwarf/test15-enum-v0.cc: Source code for test input. * tests/data/test-diff-dwarf/test15-enum-v1.cc: Likewise. * tests/data/test-diff-filter/test19-enum-report-0.txt: New test input. * tests/data/test-diff-filter/test19-enum-report-1.txt: Likewise. * tests/data/test-diff-filter/test19-enum-v0.o: Likewise. * tests/data/test-diff-filter/test19-enum-v1.o: Likewise. * tests/data/test-diff-filter/test19-enum-v0.cc: Source code for test input. * tests/data/test-diff-filter/test19-enum-v1.cc: Likewise. * tests/test-diff-dwarf.cc: Run this test harness on the new test inputs above. * tests/test-diff-filter.cc: Likewise. * tests/Makefile.am: Add the new files above to the source distribution. Signed-off-by: Dodji Seketeli <dodji@redhat.com>
2014-09-16 11:40:35 +00:00
{
"data/test-diff-dwarf/test15-enum-v0.o",
"data/test-diff-dwarf/test15-enum-v1.o",
"data/test-diff-dwarf/test15-enum-report.txt",
"output/test-diff-dwarf/test15-enum-report.txt"
},
Support comparing symbols not referenced by debug info * doc/manuals/abidiff.rst: Adjust intro to mention that w/o debug info, abidiff now works but just report about added/removed symbols. Add documentation about the new --no-unreferenced-symbols option. * include/abg-comparison.h (string_elf_symbol_map): New typedef. (diff_context::show_symbols_unreferenced_by_debug_info): Declare new accessors. * src/abg-comparison.cc (diff_context::priv::show_syms_unreferenced_by_di_): New data member. (diff_context::priv::priv): Adjust. (diff_context::show_symbols_unreferenced_by_debug_info): Implement these accessors. (corpus_diff::priv::{unrefed_fn_syms_edit_script_, unrefed_var_syms_edit_script_, added_unrefed_fn_syms_, deleted_unrefed_fn_syms_, added_unrefed_var_syms_, deleted_unrefed_var_syms_}): New data members. (corpus_diff::priv::diff_stats::{num_func_syms_removed, num_func_syms_added, num_var_syms_removed, num_var_syms_added}): New data members. (corpus_diff::priv::diff_stats::diff_stats): Adjust. (corpus_diff::ensure_lookup_tables_populated): Populate lookup tables for added/removed symbols that are not referenced by any debug info. (corpus_diff::priv::apply_filters_and_compute_diff_stats): Compute stats for the added/removed symbols not referenced by any debug info. (corpus_diff::priv::emit_diff_stats): Emit stats about added/removed symbols that are not referenced by any debug info. (corpus_diff::length): Adjust to take in account added/removed symbols not referenced by any debug info. (show_linkage_name_and_aliases): New static function. (corpus_diff::report): When emitting a symbol name, emit its version too, and tell if it aliases other symbols. Avoid emitted extra new lines. Report added/removed symbols not referenced by any debug info. (compute_diff): In the overload for corpus_sptr, compute the diffs for symbols not referenced by debug info. * include/abg-corpus.h (corpus::get_unreferenced_{function,variable}_symbols): Declare new member functions. * src/abg-corpus.cc (corpus_priv::{unrefed_fun_symbols, unrefed_var_symbols}): New data members. (corpus_priv::build_unreferenced_symbols_tables): Define new member function. (struct comp_elf_symbols_functor): New functor. (corpus::is_empty): Adjust to take in account added/removed symbols not referenced by debug info. (corpus::{get_unreferenced_function_symbols, corpus::get_unreferenced_variable_symbols}): Define these accessors. * include/abg-dwarf-reader.h (enum status): Transform this into bitfields. Add a STATUS_UNKNOWN value that has the value 0. (operator|(status, status), operator&(status, status)) (operator|=(status&, status), operator&=(status, status)): New bit-wise operators to manipulate instances of the status bit-field. * src/abg-dwarf-reader.cc (get_version_for_symbol): Fix this to avoid returning garbage version sometimes. (read_debug_info_into_corpus): Fix this to return a non-null but empty corpus_sptr when there is no debug info available. (operator|(status, status), operator&(status, status)) (operator|=(status&, status), operator&=(status, status)): Define these new bitwise operators to manipulate instances of the status bit-field. (read_corpus_from_elf): Now that the abigail::dwarf_reader::status is a bit-field, set it to reflect if debug info and/or symbol tables have been found. Do not bail out if debug info hasn't been found. Rather, keep going, and go look for symbols-only; this is a kind of operating in degraded mode. * include/abg-ir.h (elf_symbol::get_aliases_id_string): Add a flag that says if the current instance of elf_symbol should be included in the list of aliases or not. * src/abg-ir.cc (elf_symbol::get_aliases_id_string): Define it. * tests/data/test-diff-dwarf/test16-syms-only-v{0,1}.o: New test input. * tools/abidiff.cc (options::show_symbols_not_referenced_by_debug_info): New data member. (options:options): Adjust. (display_usage): Add an info string for the new --no-unreferenced-symbols command line option. (parse_command_line): Parse the new --no-unreferenced-symbols command line. (set_diff_context_from_opts): Set the diff_context according to the presence of --no-unreferenced-symbols. (main): Adjust for the fact that abigail::dwarf_reader::status is now a bit-field. * tools/abilint.cc (main): Adjust for the fact that abigail::dwarf_reader::status is now a bit-field.. (): * tests/data/test-diff-dwarf/test16-syms-only-report.txt: New test reference output. * tests/data/test-diff-dwarf/test16-syms-only-v{0,1}.cc: Source code for new test input. * tests/data/test-diff-dwarf/test17-non-refed-syms-v{0,1}.o: New test input. * tests/data/test-diff-dwarf/test17-non-refed-syms-v{0,1}.cc: New source code for test input. * tests/data/test-diff-dwarf/libtest18-alias-sym-v{0,1}.so: New test input. * tests/data/test-diff-dwarf/test18-alias-sym-report-0.txt: Reference output for new test input. * tests/data/test-diff-dwarf/test18-alias-sym-v{0,1}.cc: Source code for new test input. * tests/data/test-diff-dwarf/test18-alias-sym-version-script: Source code for new test input. * tests/Makefile.am: Add the new test materials to the source distribution. * tests/test-diff-dwarf.cc(in_out_specs): Add the new input tests above to the array of tests to run by this harness. (main): Emit empty reports for empty resulting diffs. * tests/data/test-diff-dwarf/test{0,8,9,12,14-inline-report,}-report.txt: Adjust. * tests/data/test-diff-filter/test{0,01,2,4,5,7,8,9,10,12,13,15-0,15-1}-report.txt: Likewise. * tests/data/test-diff-filter/test{19-enum,20-inline,}-report-0.txt: Likewise. * tests/data/test-diff-suppr/test0-type-suppr-report-{1,2}.txt: Likewise. * tests/data/test-diff-suppr/test{1,2}-typedef-suppr-report-1.txt: Likewise. Signed-off-by: Dodji Seketeli <dodji@redhat.com>
2014-10-22 16:05:31 +00:00
{
"data/test-diff-dwarf/test16-syms-only-v0.o",
"data/test-diff-dwarf/test16-syms-only-v1.o",
"data/test-diff-dwarf/test16-syms-only-report.txt",
"output/test-diff-dwarf/test16-syms-only-report.txt"
},
{
"data/test-diff-dwarf/test17-non-refed-syms-v0.o",
"data/test-diff-dwarf/test17-non-refed-syms-v1.o",
"data/test-diff-dwarf/test17-non-refed-syms-report-0.txt",
"output/test-diff-dwarf/test17-non-refed-syms-report-0.txt"
},
{
"data/test-diff-dwarf/libtest18-alias-sym-v0.so",
"data/test-diff-dwarf/libtest18-alias-sym-v1.so",
"data/test-diff-dwarf/test18-alias-sym-report-0.txt",
"output/test-diff-dwarf/test18-alias-sym-report-0.txt"
},
Support reading and comparing soname from ELF files Libabigail's DWARF reader doesn't read the DT_SONAME tag from the .dynamic section. The abigail::corpus type doesn't have a property for that tag either. And the comparison engine doesn't take that tag in when comparing corpora. This patch modifies the DWARF reader to read the DT_SONAME and DT_NEEDED tags from the .dynamic section. The value of DT_SONAME tag is then saved in the new corpus property accessed by the new abigail::corpus::get_soname() accessor. The comparison engine has also been modified to compare the sonames of two corpora being compared. Note that the value of the DT_NEEDED elf tag is saved in a new corpus property that is accessed via the new abigail::corpus::get_needed() getter. This property is not used yet. This patch also adds a unit test for this new feature. * include/abg-corpus.h (corpus::{get_needed, set_needed, get_soname, set_soname}): Declare new accessors. * src/abg-corpus.cc (corpus::priv::{needed, soname}): New data members. (corpus::{get_needed, set_needed, get_soname, set_soname}): Define new accessors. (corpus::is_empty): Take dt_needed and dt_soname in account in computing empty-ness. * src/abg-dwarf-reader.cc (read_context::{dt_needed_, dt_soname_}): New data members. (read_context::{dt_needed, dt_soname}): New accessors. (read_context::load_dt_soname_and_needed): New member function. (read_corpus_from_elf): Call the new read_context::load_dt_soname_and_needed() to read the dt_soname and dt_needed tags. Set them to the corpus. * include/abg-comparison.h (diff_context::show_soname_change): Declare new accessors. * src/abg-comparison.cc (diff_context::priv::show_soname_change_): New data member. (diff_context::priv::priv): Initialize the new data member diff_context::priv::show_soname_change_. (diff_context::show_soname_change): Define new accessors. (corpus_diff::priv::sonames_equal_): New data member. (corpus_diff::priv::priv): Initialize the new data member corpus_diff::priv::sonames_equal_. (corpus_diff::length): Take the new priv_->sonames_equals_ data member in account. (corpus_diff::{report, priv::emit_diff_stats}): If the sonames changed and we are allowed to report it, then report it. (compute_diff): In the variant for corpus_diff, do not forget to compare the sonames. * src/abg-reader.cc (build_needed, read_elf_needed_from_input): Define new static functions. (read_corpus_from_input): Read the 'soname' attribute from the 'abi-corpus' xml element node. * src/abg-writer.cc (write_elf_needed): Define new static function. (write_corpus_to_native_xml): Write a new 'elf-needed' xml element node that contains one xml 'dependency' element node per dependency to emit. This uses the new write_elf_needed() function above. * tests/data/test-diff-dwarf/libtest19-soname-v0.so: New test input data. * tests/data/test-diff-dwarf/libtest19-soname-v1.so: Likewise. * tests/data/test-diff-dwarf/test19-soname-report-0.txt: Likewise. * tests/data/test-diff-dwarf/test19-soname-v0.c: Source code of the first binary above. * tests/data/test-diff-dwarf/test19-soname-v1.c: Source code of the second binary above. * tests/test-diff-dwarf.cc (in_out_specs): Add the test input above to the list of test input to run this harness on. * tests/data/Makefile.am: Add the new test input data above. * tests/data/test-read-dwarf/test{0,1}.abi: Adjust. * tests/data/test-read-dwarf/test{2,3,4,6,}.so.abi: Adjust. Signed-off-by: Dodji Seketeli <dodji@redhat.com>
2014-12-07 20:01:20 +00:00
{
"data/test-diff-dwarf/libtest19-soname-v0.so",
"data/test-diff-dwarf/libtest19-soname-v1.so",
"data/test-diff-dwarf/test19-soname-report-0.txt",
"output/test-diff-dwarf/test19-soname-report-0.txt"
},
{
"data/test-diff-dwarf/libtest20-add-fn-parm-v0.so",
"data/test-diff-dwarf/libtest20-add-fn-parm-v1.so",
"data/test-diff-dwarf/test20-add-fn-parm-report-0.txt",
"output/test-diff-dwarf/test20-add-fn-parm-report-0.txt"
},
Un-share diff nodes in the comparison IR Until now, the diff nodes of the comparison IR were shared. That is, two diffs about the same subjects were represented by the same diff node that would appear twice in the tree. This was preventing us from spotting e.g, the first occurrence of a diff node that would later (in the tree) turn to be redundant because all redundant diff nodes are represented by the same diff node pointer. This patch now makes each diff node be different, as far of pointer comparison is concerned. But it introduces the concept of canonical diff node to ease the comparison between two diff nodes. Two diff nodes that are equal have the same canonical diff node. With this facility, it's now possible to tell the difference between diff nodes that are (structurally) equal. It's not possible to say things like "this is the first or second occurrence of the redundant diff node foo'. * include/abg-ir.h: Prefix the doc string with "///", rather than writing it inside a /**/ comment. * include/abg-comparison.h (function_decl_diff) (function_decl_diff_sptr, fn_parm_diff, fn_parm_diff_sptr) (var_diff_sptr, base_diff, class_diff, class_diff_sptr): Move these class & typedef decls to the top of the file. (string_changed_base_map, string_changed_parm_map) (unsigned_changed_parm_map, changed_function_ptr) (string_changed_function_ptr_map): Remove these typedefs. (string_base_diff_sptr_map, string_fn_parm_diff_sptr_map) (unsigned_fn_parm_diff_sptr_map, string_var_diff_sptr_map) (unsigned_var_diff_sptr_map, string_function_decl_diff_sptr_map) (string_var_diff_ptr_map): New typedefs. (diff_context::{has_diff_for,add_diff}): Make these member functions private. (diff_context::{set_canonical_diff_for, set_or_get_canonical_diff_for}): Declare new private member functions. (diff_context::{get_canonical_diff_for, initialize_canonical_diff}): New public member functions. (diff_context::maybe_apply_filters): Set the default value of the 'traverse_nodes_once' parameter to false. (compute_diff): Make the overload for class_decl_sptr friend of the diff_context class. (class diff): Make the diff_context class a friend of this one. (diff::set_canonical_diff): Declare new private member function. (diff::get_canonical_diff): Declare new public member function. (diff::children_nodes): Make this return a vector<diff_sptr>, rather than a vector<diff*>. (diff::append_child_node): Make this take a diff_sptr rather than a diff*. (class fn_parm_diff): Declare new type. (compute_diff): Declare new overload for the new function_decl::parameter_sptr. (function_decl_diff::subtype_changed_parms): Return a string_fn_parm_diff_sptr_map rather than a string_changed_parm. (function_decl_diff::children_nodes): Return a vector<diff_sptr>. (function_decl_diff::append_child_node): Take a diff_sptr. (function_decl_diff::changed_functions): Return a string_function_decl_diff_sptr_map. (function_decl_diff::changed_variables): Return a string_var_diff_sptr. (class function_decl::parameter): Make this a pimpled class. Also, make it inherit decl_base. (equals): New overload for function_decl::parameter. (struct function_decl::parameter::hash): Declare this. (ir_node_visitor::visit): Declare new overload for function_decl::parameter. * src/abg-comparison.cc: Add doc-string about the internal representation of the comparison engine and also about the concept of canonical diff of the comparison engine. (RETURN_IF_BEING_REPORTED_OR_WAS_REPORTED_EARLIER) (RETURN_IF_BEING_REPORTED_OR_WAS_REPORTED_EARLIER2) (RETURN_IF_BEING_REPORTED_OR_WAS_REPORTED_EARLIER3): Consider the canonical diff when trying to know if the current node was reported earlier. (diff_context::priv::canonical_diffs): New data member. (diff_context::{get_canonical_diff_for, set_canonical_diff_for, set_or_get_canonical_diff_for, initialize_canonical_diff}): Define new member functions. (diff_context::{diff_has_been_traversed, mark_diff_as_traversed): Consider canonical diff for these tests and actions. (diff::priv::children_): Change the type of this to vector<diff_sptr>. (diff::canonical_diff_): New data member. (diff::diff): Initialize the diff::canonical_diff_ data member. (diff::begin_traversing): Mark the canonical diff node too. (diff::is_traversing): Consider the canonical diff node in this test. (diff::end_traversing): Make the canonical diff node too. Also mark the current node as having been traversed. (diff::children_nodes): Return a vector<diff_sptr> type. (diff::{get_canonical_diff, set_canonical_diff}): Define new member functions. (diff::append_child_node): Take a diff_sptr type parameter. (diff::{reported_once, currently_reporting}): Flag the canonical diff node too. And consider the canonical diff node when checking the flag. (diff::traverse): No need to mark the node as being traversed because the diff::end_traversing() function does it now. Adjust the code because diff::children_nodes() now returns vector<diff_sptr>. ({distinct_diff, var_diff, pointer_diff, array_diff, reference_diff, qualified_type_diff, enum_diff, class_diff, base_diff, scope_diff, function_decl_diff, typedef_diff, corpus_diff}::chain_into_hierarchy): Adjust to the new type that diff::append_child_node() takes. Also, take into account that the diff nodes are now un-shared. (compute_diff_for_distinct_kinds, compute_diff_for_types) (compute_diff): Do not share diff nodes anymore. Initialize the canonical diff node for the new created node. (represent): Take a var_diff_sptr rather than two var_decl_sptr. Adjust. Also take in account the fact that diff nodes are not shared anymore, and that they do have canonical diffs. (var_diff::type_diff): Make the computation of the type_diff of the var_diff be lazy. This avoids infinite (recursive) creation of diff nodes when a class diff node has a sub-type of data member that is a class diff node too. (var_diff::report): Detect redundant reporting of this kind of diff node. (class_diff::priv::changed_bases_): Change the type of this to string_base_diff_sptr_map. (class_diff::priv::subtype_changed_dm_): Change the type of this to string_var_diff_sptr_map. (class_diff::priv::changed_dm_): Change the type of this to unsigned_var_diff_sptr_map. (class_diff::priv::{count_filtered_subtype_changed_dm, count_filtered_bases}): Do not take a diff_context_sptr anymore. (class_diff::ensure_lookup_tables_populated): changed_bases_ subtype_changed_dm_ and changed_dm_ are now *NOT* shared diff nodes anymore. (class_diff::priv::base_has_changed): Adjust. (class_diff::priv::subtype_changed_dm): Adjust. (class_diff::priv::count_filtered_bases): Adjust as changed_bases_ is now a map of un-shared diff nodes. (class_diff::priv::count_filtered_subtype_changed_dm): Adjust as subtype_changed_dm_ is now a map of un-shared diff nodes. (class_diff::priv::{count_filtered_changed_mem_fns, count_filtered_inserted_mem_fns, count_filtered_deleted_mem_fns, }): Adjust for change of the default parameter value of diff_context::maybe_apply_filters(). (class_diff::~class_diff): New destructor. (class_diff::changed_bases): Return a string_base_diff_sptr_map& type. (class_diff::{inserted_data_members, deleted_data_members, changed_member_fns}): Add doc strings. (struct changed_data_member_comp): Remove. (struct var_diff_comp): New comparison functor. (sort_changed_data_members): Remove. (sort_var_diffs): Define new sorting function. (class_diff::report): Adjust. (fn_parm_diff::*): Define member types and functions of the new fn_parm_diff type. (function_decl_diff::priv::{subtype_changed_parms_, changed_parms_by_id_}): Make these take a map of fn_parm_diff_sptr nodes. (function_decl_diff::ensure_lookup_tables_populated): Adjust to the fact that priv_->subtype_changed_parms_ and priv_->priv_->changed_parms_by_id_ now are maps of un-shared fn_parm_diff_sptr nodes. (function_decl_diff::subtype_changed_parms): Adjust. (struct changed_parm_comp): Remove. (struct fn_parm_diff_comp): New comparison functor. (sort_changed_parm_map): Remove. (sort_string_fn_parm_diff_sptr_map): New sorting function. (function_decl_diff::report): Adjust. (corpus_diff::priv::children_): Change the type of this to vector<diff_sptr>. (corpus_diff::priv::changed_fns_): Changed the type of this to string_function_decl_diff_sptr_map. (corpus_diff::priv::changed_vars_): Changed the type of this to string_var_diff_sptr_map. (corpus_diff::priv::ensure_lookup_tables_populated): Adjust. (corpus_diff::priv::apply_filters_and_compute_diff_stats}): Adjust. Do not need to clear redundancy categorization anymore because the diff nodes are not shared anymore. (corpus_diff::priv::categorize_redundant_changed_sub_nodes): Adjust. (corpus_diff::priv::clear_redundancy_categorization): Adjust. (corpus_diff::changed_variables): Adjust. (struct changed_function_ptr_comp): Remove. (struct function_decl_diff_comp): New comparison functor. (sort_string_changed_function_ptr_map): Remove. (sort_string_function_decl_diff_sptr_map): Define new sorting function. (struct changed_vars_comp): Remove. (struct var_diff_sptr_comp): New comparison functor. (sort_changed_vars): Remove. (sort_string_var_diff_sptr_map): Define new sorting function. (corpus_diff::report): Adjust. (corpus_diff::traverse): Adjust. ({category_propagation_visitor, suppression_categorization_visitor}::visit_end): Adjust. (clear_redundancy_categorization): Adjust. * src/abg-hash.cc (function_decl::parameter::hash::operator): Adjust. * src/abg-ir.cc (struct function_decl::parameter::priv): Define here as part of pimpl-ifying the function_decl::parameter type. (function_decl::parameter::*): Define here the member functions as part of pimpl-ifying the function_decl::parameter type. (equals): Define the overload for function_decl::parameter here too. (ir_node_visitor::visit(function_decl::parameter*)): Define this. * tests/data/test-abicompat/test0-fn-changed-report-0.txt: Adjust. * tests/data/test-diff-suppr/test5-fn-suppr-report-0.txt: Adjust. * tests/data/test-diff-dwarf/libtest21-redundant-fn-v0.so: New test input data. * tests/data/test-diff-dwarf/libtest21-redundant-fn-v1.so: Likewise. * tests/data/test-diff-dwarf/test21-redundant-fn-v0.cc: Source code for test input binary above. * tests/data/test-diff-dwarf/test21-redundant-fn-v1.cc: Likewise. * tests/data/test-diff-dwarf/test21-redundant-fn-report-0.txt: New test input data. * tests/data/test-diff-dwarf/libtest22-changed-parm-c-v0.so: New test input data. * tests/data/test-diff-dwarf/libtest22-changed-parm-c-v1.so: Likewise. * tests/data/test-diff-dwarf/test22-changed-parm-c-v0.c: Source code for test input binary above. * tests/data/test-diff-dwarf/test22-changed-parm-c-v1.c: Likewise. * tests/test-diff-dwarf.cc (in_out_spec): Add the new test input data to the vector the test inputs to run this harness over. * tests/data/test-diff-suppr/test8-redundant-fn-report-0.txt: New test input data. * tests/data/test-diff-suppr/test8-redundant-fn-report-1.txt: Likewise. * tests/data/test-diff-suppr/libtest8-redundant-fn-v0.so: New test input binary. * tests/data/test-diff-suppr/libtest8-redundant-fn-v1.so: Likewise. * tests/data/test-diff-suppr/test8-redundant-fn-v0.cc: Source code code for binary test input above. * tests/data/test-diff-suppr/test8-redundant-fn-v1.cc: Likewise. * tests/data/test-diff-suppr/test9-changed-parm-c-report-0.txt: New test input data. * tests/data/test-diff-suppr/test9-changed-parm-c-report-1.txt: Likewise. * tests/data/test-diff-suppr/libtest9-changed-parm-c-v0.so: New test input binary. * tests/data/test-diff-suppr/libtest9-changed-parm-c-v1.so: New test input binary. * tests/data/test-diff-suppr/test9-changed-parm-c-v0.c: Source code for binary test input above. * tests/data/test-diff-suppr/test9-changed-parm-c-v1.c: Likewise. * tests/test-diff-suppr.cc (in_out_specs): Add the new test input data to the vector the test inputs to run this harness over. * tests/data/Makefile.am: Add the new files to the source distribution. Signed-off-by: Dodji Seketeli <dodji@redhat.com>
2014-12-26 12:22:16 +00:00
{
"data/test-diff-dwarf/libtest21-redundant-fn-v0.so",
"data/test-diff-dwarf/libtest21-redundant-fn-v1.so",
"data/test-diff-dwarf/test21-redundant-fn-report-0.txt",
"output/test-diff-dwarf/test21-redundant-fn-report-0.txt"
},
{
"data/test-diff-dwarf/libtest22-changed-parm-c-v0.so",
"data/test-diff-dwarf/libtest22-changed-parm-c-v1.so",
"data/test-diff-dwarf/test22-changed-parm-c-report-0.txt",
"output/test-diff-dwarf/test22-changed-parm-c-report-0.txt"
},
Detect and report changes in ELF architecture Libabigail does not take in account the architecture of the ELF file it reads. This patch changes that to represent the ELF architecture as a string, detect when that architecture changes accross two corpora being compared and emit a report about that change. * configure.ac: Detect the presence of libebl.a and add it to the list of library we depend on to build libabigail. Report when libelf.so is not found. * include/abg-comparison.h: (diff_context::show_architecture_change): Declare new accessors. (corpus_diff::architecture_changed): Declare new method. * include/abg-corpus.h (corpus::{get,set}_architecture_name): Declare new accessors. * src/abg-comparison.cc (diff_context::priv::show_architecture_change_): New data member. (diff_context::priv::priv): Initialize it. (diff_context::show_architecture_change): Define new accessors. (function_decl_diff::report): Report when the size/alignment of the function address changes. (corpus_diff::priv::architectures_equal_): New data member. (corpus_diff::priv::priv): Initialize it. (corpus_diff::priv::emit_diff_stats): Take in account changes of architecture. (corpus_diff::architecture_changed): Define new method. (corpus_diff::length): Take in account changes of architecture. (corpus_diff::report): Report about changes of architecture. (compute_diff): In the overload for corpus_diff_sptr, detect changes fo architecture. * src/abg-corpus.cc (corpus_priv::architecture_name): Define new data member. (corpus::{get,set}_architecture_name): Define new method. * src/abg-dwarf-reader.cc: Include elfutils/libebl.h to use ebl_openbackend() and ebl_backend_name() (read_context::elf_architecture_): Define new data member. (read_context::elf_architecture): Define new accessor. (read_context::{load_elf_architecture, load_remaining_elf_data}): Define new methods. (read_corpus_from_elf): Use ctxt.load_remaining_elf_data() in lieu of ctxt.load_dt_soname_and_needed. Stick the architecture into the corpus. * src/abg-reader.cc (read_corpus_from_input): Read the 'architecture' XML property. * src/abg-writer.cc (write_corpus_to_native_xml): Write the 'architecture' XML property. * tests/data/test-diff-dwarf/libtest-23-diff-arch-v0-32.so: New test input file. * tests/data/test-diff-dwarf/libtest-23-diff-arch-v0-64.so: Likewise. * tests/data/test-diff-dwarf/test-23-diff-arch-report-0.txt: Likewise. * tests/data/test-diff-dwarf/test-23-diff-arch-v0.cc: Source code for the binary test input files above. * tests/data/Makefile.am: Add the new test input files to the source distribution. * tests/test-diff-dwarf.cc (in_out_specs): Add the new test input data to the set of input data to run this test harness over. * tests/test-read-dwarf.cc (main): Do not take the architecture in account during comparisons. Signed-off-by: Dodji Seketeli <dodji@redhat.com>
2015-01-07 12:45:53 +00:00
{
"data/test-diff-dwarf/libtest-23-diff-arch-v0-32.so",
"data/test-diff-dwarf/libtest-23-diff-arch-v0-64.so",
"data/test-diff-dwarf/test-23-diff-arch-report-0.txt",
"output/test-diff-dwarf/test-23-diff-arch-report-0.txt"
},
{
"data/test-diff-dwarf/libtest24-added-fn-parms-v0.so",
"data/test-diff-dwarf/libtest24-added-fn-parms-v1.so",
"data/test-diff-dwarf/test24-added-fn-parms-report-0.txt",
"output/test-diff-dwarf/test24-added-fn-parms-report-0.txt"
},
{
"data/test-diff-dwarf/libtest25-removed-fn-parms-v0.so",
"data/test-diff-dwarf/libtest25-removed-fn-parms-v1.so",
"data/test-diff-dwarf/test25-removed-fn-parms-report-0.txt",
"output/test-diff-dwarf/test25-removed-fn-parms-report-0.txt"
Detect and report changes in ELF architecture Libabigail does not take in account the architecture of the ELF file it reads. This patch changes that to represent the ELF architecture as a string, detect when that architecture changes accross two corpora being compared and emit a report about that change. * configure.ac: Detect the presence of libebl.a and add it to the list of library we depend on to build libabigail. Report when libelf.so is not found. * include/abg-comparison.h: (diff_context::show_architecture_change): Declare new accessors. (corpus_diff::architecture_changed): Declare new method. * include/abg-corpus.h (corpus::{get,set}_architecture_name): Declare new accessors. * src/abg-comparison.cc (diff_context::priv::show_architecture_change_): New data member. (diff_context::priv::priv): Initialize it. (diff_context::show_architecture_change): Define new accessors. (function_decl_diff::report): Report when the size/alignment of the function address changes. (corpus_diff::priv::architectures_equal_): New data member. (corpus_diff::priv::priv): Initialize it. (corpus_diff::priv::emit_diff_stats): Take in account changes of architecture. (corpus_diff::architecture_changed): Define new method. (corpus_diff::length): Take in account changes of architecture. (corpus_diff::report): Report about changes of architecture. (compute_diff): In the overload for corpus_diff_sptr, detect changes fo architecture. * src/abg-corpus.cc (corpus_priv::architecture_name): Define new data member. (corpus::{get,set}_architecture_name): Define new method. * src/abg-dwarf-reader.cc: Include elfutils/libebl.h to use ebl_openbackend() and ebl_backend_name() (read_context::elf_architecture_): Define new data member. (read_context::elf_architecture): Define new accessor. (read_context::{load_elf_architecture, load_remaining_elf_data}): Define new methods. (read_corpus_from_elf): Use ctxt.load_remaining_elf_data() in lieu of ctxt.load_dt_soname_and_needed. Stick the architecture into the corpus. * src/abg-reader.cc (read_corpus_from_input): Read the 'architecture' XML property. * src/abg-writer.cc (write_corpus_to_native_xml): Write the 'architecture' XML property. * tests/data/test-diff-dwarf/libtest-23-diff-arch-v0-32.so: New test input file. * tests/data/test-diff-dwarf/libtest-23-diff-arch-v0-64.so: Likewise. * tests/data/test-diff-dwarf/test-23-diff-arch-report-0.txt: Likewise. * tests/data/test-diff-dwarf/test-23-diff-arch-v0.cc: Source code for the binary test input files above. * tests/data/Makefile.am: Add the new test input files to the source distribution. * tests/test-diff-dwarf.cc (in_out_specs): Add the new test input data to the set of input data to run this test harness over. * tests/test-read-dwarf.cc (main): Do not take the architecture in account during comparisons. Signed-off-by: Dodji Seketeli <dodji@redhat.com>
2015-01-07 12:45:53 +00:00
},
{
Bug 18342 - Segmentation fault while comparing functions with variadic parameters In the IR built from DWARF, a variadic variadic parameter has an empty type. Later during type comparison, comparing an empty (NULL) type with other types proves to be troublesome. This patch handles the issue by creating a new kind of abigail::type_decl type specifically for variadic parameters. This is like what is done for void types. After that it appears that the categorizing sub-system flags a change of variadic type to non-variadic type as redundant if that change appears several times on different functions. We don't want that because it can hide important changes we want to see. The patch fixes that too. * include/abg-fwd.h (is_array_type): New overload for a naked pointer. * include/abg-ir.h (type_decl::get_variadic_parameter_type_decl): Declare new static function. * src/abg-ir.cc (is_array_type): Define new function overload for naked pointers (type_decl::get_variadic_parameter_type_decl): Define new static function. * src/abg-dwarf-reader.cc (build_function_decl): The type of variadic parameter is now a special type_decl. * include/abg-comparison.h (is_diff_of_variadic_parameter_type) (is_diff_of_variadic_parameter): New function declarations. * src/abg-comparison.cc (is_diff_of_variadic_parameter_type) (is_diff_of_variadic_parameter): Define new functions. (compute_diff): Refuse to return a NULL diff for types. Assert that the parameters are non-NULL. (report_size_and_alignment_changes): We are comparing arrays only if the two parameters are arrays. (fn_parm_diff::fn_parm_diff): Refuse that type diff for this diff node is non empty. (fn_parm_diff::report): Strengthen an assert. Cleanup a comment. (redundancy_marking_visitor::visit_begin): Do not mark function type and variadic parms diff nodes as redundant for local changes. * tests/data/test-diff-dwarf/libtest26-added-parms-before-variadic-v{0,1}.so: New test input binaries. * tests/data/test-diff-dwarf/test26-added-parms-before-variadic-report.txt: New test output reference. * tests/data/test-diff-dwarf/test26-added-parms-before-variadic-v{0,1}.c: Source code of the new test input binaries above. * tests/data/Makefile.am: Add the new test stuff to source distribution. * tests/test-diff-dwarf.cc (in_out_specs): Add the new test inputs above to the set of input to run this test harness over. Signed-off-by: Dodji Seketeli <dodji@redhat.com>
2015-05-05 08:05:45 +00:00
"data/test-diff-dwarf/libtest26-added-parms-before-variadic-v0.so",
"data/test-diff-dwarf/libtest26-added-parms-before-variadic-v1.so",
"data/test-diff-dwarf/test26-added-parms-before-variadic-report.txt",
"output/test-diff-dwarf/test26-added-parms-before-variadic-report.txt"
},
{
"data/test-diff-dwarf/test27-local-base-diff-v0.o",
"data/test-diff-dwarf/test27-local-base-diff-v1.o",
"data/test-diff-dwarf/test27-local-base-diff-report.txt",
"output/test-diff-dwarf/test27-local-base-diff-report.txt"
},
{
"data/test-diff-dwarf/test28-vtable-changes-v0.o",
"data/test-diff-dwarf/test28-vtable-changes-v1.o",
"data/test-diff-dwarf/test28-vtable-changes-report-0.txt",
"output/test-diff-dwarf/test28-vtable-changes-report-0.txt"
},
// This should be the last entry
{NULL, NULL, NULL, NULL}
};
int
main()
{
using abigail::tests::get_src_dir;
using abigail::tests::get_build_dir;
Expose a new libabigail::tools_utils namespace The utilities present in this namespace were previously living in tools/abg-tools-utils.h and tools/abg-tools-utils.cc. They were not exported and were meant to be useful to the tools writting in the tools/ directory. I realized that these utilities might be useful to clients of the libabigail library in general so I am making them available generally. Note that the initial name of the namespace was libabigail::tools; so renaming it to libabigail::tools_utils required that I adjust some client code. I have also cleaned up the code, interfaces and their apidoc a little bit. * include/abg-tools-utils.h: Moved tools/abg-tools-utils.h in here. Renamed the namespace tools into tools_utils. Inject std::ostream, std::istream, std::ifstream, and std::string types into the tools_utils namespace. Adjust the function declarations accordingly. Remove the useless dirname() function declaration. * include/Makefile.am: Add abg-tools-utils.h to the list of exported headers. * src/abg-tools-utils.cc: Moved tools/abg-tools-utils.cc in here. Renamed the namespace tools into tools_utils. (get_stat): Add apidoc. (is_dir): Cleanup apidoc. (dir_name); Cleanup parameter name. (guess_file_type): Cleanup parameter type. * src/Makefile.am: Add abg-tools-utils.cc to the list of exported headers. * tools/Makefile.am: Do not build the temporary library libtoolsutils.la anymore as abg-tools-utils.{h,cc} have moved out of this directory. * tools/abicompat.cc (parse_command_line, main): Adjust for tools -> tools_utils namespace change. * tools/abidiff.cc (parse_command_line, main): Likewise. * tools/abidw.cc (parse_command_line, main): Likewise. * tools/abilint.cc (parse_command_line, main): Likewise. * tests/test-abicompat.cc (main): Adjust for tools -> tools_utils namespace change. * tests/test-abidiff.cc (main): Likewise. * tests/test-alt-dwarf-file.cc (main): Likewise. * tests/test-core-diff.cc (main): Likewise. * tests/test-diff-dwarf.cc (main): Likewise. * tests/test-diff-filter.cc (main): Likewise. * tests/test-diff-suppr.cc (main): Likewise. * tests/test-lookup-syms.cc (main): Likewise. * tests/test-read-dwarf.cc (main): Likewise. * tests/test-read-write.cc (main): Likewise. * tests/Makefile.am: Do not reference the libtoolsutils.la private library anymore. Signed-off-by: Dodji Seketeli <dodji@redhat.com>
2015-01-08 10:34:03 +00:00
using abigail::tools_utils::ensure_parent_dir_created;
using abigail::dwarf_reader::read_corpus_from_elf;
using abigail::comparison::compute_diff;
using abigail::comparison::corpus_diff_sptr;
bool is_ok = true;
string in_elfv0_path, in_elfv1_path,
ref_diff_report_path, out_diff_report_path;
for (InOutSpec* s = in_out_specs; s->in_elfv0_path; ++s)
{
in_elfv0_path = get_src_dir() + "/tests/" + s->in_elfv0_path;
in_elfv1_path = get_src_dir() + "/tests/" + s->in_elfv1_path;
out_diff_report_path = get_build_dir() + "/tests/" + s->out_report_path;
if (!ensure_parent_dir_created(out_diff_report_path))
{
cerr << "could not create parent directory for "
<< out_diff_report_path;
is_ok = false;
continue;
}
Handle the life time of the map of canonical types While working on something else, it turned out that we need to cleanup (de-allocate) the map of canonical types when all the translation units that own types are de-allocated. Otherwise, when new translation units are created later, the types in the canonical types map become unrelated to the types in these new translation units, leading to memory management issues. This patch introduces a "usage watchdog" which detects when no translation unit uses the type system anymore. That usage watchdog is then used in the destructor of the translation_unit type to de-allocate the global data that is logically owned by by the type system. The patch also changes the API to read translation units and corpora in a way that forces users to get a handle on the resulting shared pointer. * include/abg-ir.h (type_base::canonical_types_map_type): Move this typedef into abg-ir.cc and out of the type_base namespace. (type_base::get_canonical_types_map): Likewise. * src/abg-ir.cc (canonical_types_map_type): New typedef that got moved here from type_base::canonical_types_map_type. (get_canonical_types_map): Likewise got moved here from type_base::get_canonical_types_map. Made static in the process. (class usage_watchdog): New type. (usage_watchdog_sptr, usage_watchdog_wptr): New typedefs. (get_usage_watchdog, get_usage_watchdog_wptr, ref_usage_watchdog) (maybe_cleanup_type_system_data): New static functions. (translation_unit::priv::usage_watchdog_): Add new data member. (translation_unit::priv::priv): Get a reference on the usage watchdog. (translation_unit::priv::~priv): If the usage watchdog says that the type system is not used, then cleanup the global data logically owned by the type system. * include/abg-dwarf-reader.h (read_corpus_from_elf): Make this return a corpus and set the status by reference using a parameter. * src/abg-dwarf-reader.cc (read_corpus_from_elf): Implement the above. * include/abg-reader.h (read_translation_unit_from_file) (read_translation_unit_from_buffer) (read_translation_unit_from_istream): Remove the overloads that do not return a translation_unit_sptr and that pass it as a parameter. Only keep the overloads that return a translation_unit_sptr, forcing users of the API to own a proper reference on the resulting translation_unit pointer. That is important to handle the life time of the global data of the type system that need to be cleared when the last translation unit is de-allocated. * src/abg-reader.cc (read_translation_unit_from_input): Make this return a translation_unit_sptr. (read_translation_unit_from_file) (read_translation_unit_from_buffer) (read_translation_unit_from_istream): Remove the overloads that do not return a translation_unit_sptr and that pass it as a parameter. Only keep the overloads that return a translation_unit_sptr. (read_to_translation_unit): Make this return a translation_unit_sptr. * tests/print-diff-tree.cc (main): Adjust. * tests/test-diff-dwarf.cc (main): Likewise. * tests/test-ir-walker.cc (main): Likewise. * tests/test-read-dwarf.cc (main): Likewise. * tests/test-read-write.cc (main): Likewise. * tools/abicompat.cc (main): Likewise. * tools/abidiff.cc (main): Likewise. * tools/abidw.cc (main): Likewise. * tools/abilint.cc (main): Likewise. Signed-off-by: Dodji Seketeli <dodji@redhat.com>
2015-07-08 12:40:51 +00:00
abigail::dwarf_reader::status status =
abigail::dwarf_reader::STATUS_UNKNOWN;
abigail::corpus_sptr corp0 =
read_corpus_from_elf(in_elfv0_path,
/*debug_info_root_path=*/0,
/*load_all_types=*/false,
status);
abigail::corpus_sptr corp1 =
read_corpus_from_elf(in_elfv1_path,
/*debug_info_root_path=*/0,
/*load_all_types=*/false,
status);
if (!corp0)
{
cerr << "failed to read " << in_elfv0_path << "\n";
is_ok = false;
continue;
}
Handle the life time of the map of canonical types While working on something else, it turned out that we need to cleanup (de-allocate) the map of canonical types when all the translation units that own types are de-allocated. Otherwise, when new translation units are created later, the types in the canonical types map become unrelated to the types in these new translation units, leading to memory management issues. This patch introduces a "usage watchdog" which detects when no translation unit uses the type system anymore. That usage watchdog is then used in the destructor of the translation_unit type to de-allocate the global data that is logically owned by by the type system. The patch also changes the API to read translation units and corpora in a way that forces users to get a handle on the resulting shared pointer. * include/abg-ir.h (type_base::canonical_types_map_type): Move this typedef into abg-ir.cc and out of the type_base namespace. (type_base::get_canonical_types_map): Likewise. * src/abg-ir.cc (canonical_types_map_type): New typedef that got moved here from type_base::canonical_types_map_type. (get_canonical_types_map): Likewise got moved here from type_base::get_canonical_types_map. Made static in the process. (class usage_watchdog): New type. (usage_watchdog_sptr, usage_watchdog_wptr): New typedefs. (get_usage_watchdog, get_usage_watchdog_wptr, ref_usage_watchdog) (maybe_cleanup_type_system_data): New static functions. (translation_unit::priv::usage_watchdog_): Add new data member. (translation_unit::priv::priv): Get a reference on the usage watchdog. (translation_unit::priv::~priv): If the usage watchdog says that the type system is not used, then cleanup the global data logically owned by the type system. * include/abg-dwarf-reader.h (read_corpus_from_elf): Make this return a corpus and set the status by reference using a parameter. * src/abg-dwarf-reader.cc (read_corpus_from_elf): Implement the above. * include/abg-reader.h (read_translation_unit_from_file) (read_translation_unit_from_buffer) (read_translation_unit_from_istream): Remove the overloads that do not return a translation_unit_sptr and that pass it as a parameter. Only keep the overloads that return a translation_unit_sptr, forcing users of the API to own a proper reference on the resulting translation_unit pointer. That is important to handle the life time of the global data of the type system that need to be cleared when the last translation unit is de-allocated. * src/abg-reader.cc (read_translation_unit_from_input): Make this return a translation_unit_sptr. (read_translation_unit_from_file) (read_translation_unit_from_buffer) (read_translation_unit_from_istream): Remove the overloads that do not return a translation_unit_sptr and that pass it as a parameter. Only keep the overloads that return a translation_unit_sptr. (read_to_translation_unit): Make this return a translation_unit_sptr. * tests/print-diff-tree.cc (main): Adjust. * tests/test-diff-dwarf.cc (main): Likewise. * tests/test-ir-walker.cc (main): Likewise. * tests/test-read-dwarf.cc (main): Likewise. * tests/test-read-write.cc (main): Likewise. * tools/abicompat.cc (main): Likewise. * tools/abidiff.cc (main): Likewise. * tools/abidw.cc (main): Likewise. * tools/abilint.cc (main): Likewise. Signed-off-by: Dodji Seketeli <dodji@redhat.com>
2015-07-08 12:40:51 +00:00
if (!corp1)
{
cerr << "failed to read " << in_elfv1_path << "\n";
is_ok = false;
continue;
}
corp0->set_path(s->in_elfv0_path);
corp1->set_path(s->in_elfv1_path);
corpus_diff_sptr d = compute_diff(corp0, corp1);
if (!d)
{
cerr << "failed to compute diff\n";
is_ok = false;
continue;
}
ref_diff_report_path = get_src_dir() + "/tests/" + s->in_report_path;
out_diff_report_path = get_build_dir() + "/tests/" + s->out_report_path;
Make the use of a C++-11 compiler optional * configure.ac: Define a new --enable-cxx11 switch to control the use of the C++-11 compiler. Define a WITH_CXX11 C macro and an automake ENABLE_CXX11 variable. * config.h.in: Initialize the new WITH_CXX11 C macro. * src/Makefile.am: Include the files coded in C++-11 only if the ENABLE_CXX11 automake variable is defined. * tests/Makefile.am: Likewise, build the runtestsvg test program only if C++-11 usage is enabled. * include/abg-diff-utils.h (class d_path_vec): Remove useless usage of the 'typename' keyword. * include/abg-fwd.h (is_enum_type): Renamed is_enum into this, because of a name clash with a tr1 function when not using C++-11. (is_pointer_type): Likewise, renamed is_pointer into this because of a name clash with a tr1 function when not using C++-11. * src/abg-comp-filter.cc (has_harmless_name_change): Adjust for the is_enum -> is_enum_type change. * src/abg-comparison.cc (type_suppression::suppresses_diff): Likewise. (class function_suppression::priv): Add a missing "class" keyword in friend declaration. (diff_context::diff_has_been_traversed) (diff_context::mark_diff_as_traversed): Do not use the C++-11 specific type uintptr_t. * src/abg-dwarf-reader.cc (create_default_dwfl): Do not use designated initializers. Sigh. This is handy though. (expr_result::abs): Cast the argument of std::abs to avoid ambiguous call. (finish_member_function_reading): Adjust for the is_pointer -> is_pointer_type renaming. * src/abg-hash.cc (scope_decl::hash::operator) (class_decl::base_spec::hash::operator) (type_composition::hash::operator): Use std::tr1::hash string, rather than the C++-11 specific std::hash function. * src/abg-ini.cc (read_sections, write_sections): Make std::ifstream constructor take a const char* rather than a string. * src/abg-ir.cc (is_enum_type, is_pointer_type): Renamed is_enum into is_enum_type and is_pointer into is_pointer_type. * src/abg-writer.cc (write_translation_unit): Remove useless typename keyword. Make ofstream take a const char* rather than a string. (write_namespace_decl): Remove useless typename keyword. (write_corpus_to_native_xml_file): Make ofstream take a const char* rather than a string. * tests/test-abidiff.cc (main): Make ofstream take a const char* rather than a string. * tests/test-diff-dwarf.cc (main): Likewise. Signed-off-by: Dodji Seketeli <dodji@redhat.com>
2014-11-05 09:08:33 +00:00
ofstream of(out_diff_report_path.c_str(), std::ios_base::trunc);
if (!of.is_open())
{
cerr << "failed to read " << out_diff_report_path << "\n";
is_ok = false;
continue;
}
if (d->has_changes())
Support comparing symbols not referenced by debug info * doc/manuals/abidiff.rst: Adjust intro to mention that w/o debug info, abidiff now works but just report about added/removed symbols. Add documentation about the new --no-unreferenced-symbols option. * include/abg-comparison.h (string_elf_symbol_map): New typedef. (diff_context::show_symbols_unreferenced_by_debug_info): Declare new accessors. * src/abg-comparison.cc (diff_context::priv::show_syms_unreferenced_by_di_): New data member. (diff_context::priv::priv): Adjust. (diff_context::show_symbols_unreferenced_by_debug_info): Implement these accessors. (corpus_diff::priv::{unrefed_fn_syms_edit_script_, unrefed_var_syms_edit_script_, added_unrefed_fn_syms_, deleted_unrefed_fn_syms_, added_unrefed_var_syms_, deleted_unrefed_var_syms_}): New data members. (corpus_diff::priv::diff_stats::{num_func_syms_removed, num_func_syms_added, num_var_syms_removed, num_var_syms_added}): New data members. (corpus_diff::priv::diff_stats::diff_stats): Adjust. (corpus_diff::ensure_lookup_tables_populated): Populate lookup tables for added/removed symbols that are not referenced by any debug info. (corpus_diff::priv::apply_filters_and_compute_diff_stats): Compute stats for the added/removed symbols not referenced by any debug info. (corpus_diff::priv::emit_diff_stats): Emit stats about added/removed symbols that are not referenced by any debug info. (corpus_diff::length): Adjust to take in account added/removed symbols not referenced by any debug info. (show_linkage_name_and_aliases): New static function. (corpus_diff::report): When emitting a symbol name, emit its version too, and tell if it aliases other symbols. Avoid emitted extra new lines. Report added/removed symbols not referenced by any debug info. (compute_diff): In the overload for corpus_sptr, compute the diffs for symbols not referenced by debug info. * include/abg-corpus.h (corpus::get_unreferenced_{function,variable}_symbols): Declare new member functions. * src/abg-corpus.cc (corpus_priv::{unrefed_fun_symbols, unrefed_var_symbols}): New data members. (corpus_priv::build_unreferenced_symbols_tables): Define new member function. (struct comp_elf_symbols_functor): New functor. (corpus::is_empty): Adjust to take in account added/removed symbols not referenced by debug info. (corpus::{get_unreferenced_function_symbols, corpus::get_unreferenced_variable_symbols}): Define these accessors. * include/abg-dwarf-reader.h (enum status): Transform this into bitfields. Add a STATUS_UNKNOWN value that has the value 0. (operator|(status, status), operator&(status, status)) (operator|=(status&, status), operator&=(status, status)): New bit-wise operators to manipulate instances of the status bit-field. * src/abg-dwarf-reader.cc (get_version_for_symbol): Fix this to avoid returning garbage version sometimes. (read_debug_info_into_corpus): Fix this to return a non-null but empty corpus_sptr when there is no debug info available. (operator|(status, status), operator&(status, status)) (operator|=(status&, status), operator&=(status, status)): Define these new bitwise operators to manipulate instances of the status bit-field. (read_corpus_from_elf): Now that the abigail::dwarf_reader::status is a bit-field, set it to reflect if debug info and/or symbol tables have been found. Do not bail out if debug info hasn't been found. Rather, keep going, and go look for symbols-only; this is a kind of operating in degraded mode. * include/abg-ir.h (elf_symbol::get_aliases_id_string): Add a flag that says if the current instance of elf_symbol should be included in the list of aliases or not. * src/abg-ir.cc (elf_symbol::get_aliases_id_string): Define it. * tests/data/test-diff-dwarf/test16-syms-only-v{0,1}.o: New test input. * tools/abidiff.cc (options::show_symbols_not_referenced_by_debug_info): New data member. (options:options): Adjust. (display_usage): Add an info string for the new --no-unreferenced-symbols command line option. (parse_command_line): Parse the new --no-unreferenced-symbols command line. (set_diff_context_from_opts): Set the diff_context according to the presence of --no-unreferenced-symbols. (main): Adjust for the fact that abigail::dwarf_reader::status is now a bit-field. * tools/abilint.cc (main): Adjust for the fact that abigail::dwarf_reader::status is now a bit-field.. (): * tests/data/test-diff-dwarf/test16-syms-only-report.txt: New test reference output. * tests/data/test-diff-dwarf/test16-syms-only-v{0,1}.cc: Source code for new test input. * tests/data/test-diff-dwarf/test17-non-refed-syms-v{0,1}.o: New test input. * tests/data/test-diff-dwarf/test17-non-refed-syms-v{0,1}.cc: New source code for test input. * tests/data/test-diff-dwarf/libtest18-alias-sym-v{0,1}.so: New test input. * tests/data/test-diff-dwarf/test18-alias-sym-report-0.txt: Reference output for new test input. * tests/data/test-diff-dwarf/test18-alias-sym-v{0,1}.cc: Source code for new test input. * tests/data/test-diff-dwarf/test18-alias-sym-version-script: Source code for new test input. * tests/Makefile.am: Add the new test materials to the source distribution. * tests/test-diff-dwarf.cc(in_out_specs): Add the new input tests above to the array of tests to run by this harness. (main): Emit empty reports for empty resulting diffs. * tests/data/test-diff-dwarf/test{0,8,9,12,14-inline-report,}-report.txt: Adjust. * tests/data/test-diff-filter/test{0,01,2,4,5,7,8,9,10,12,13,15-0,15-1}-report.txt: Likewise. * tests/data/test-diff-filter/test{19-enum,20-inline,}-report-0.txt: Likewise. * tests/data/test-diff-suppr/test0-type-suppr-report-{1,2}.txt: Likewise. * tests/data/test-diff-suppr/test{1,2}-typedef-suppr-report-1.txt: Likewise. Signed-off-by: Dodji Seketeli <dodji@redhat.com>
2014-10-22 16:05:31 +00:00
d->report(of);
of.close();
string cmd =
"diff -u " + ref_diff_report_path + " " + out_diff_report_path;
if (system(cmd.c_str()))
is_ok = false;
}
return !is_ok;
}