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libabigail/tests/test-diff-filter.cc
Dodji Seketeli d0b8ef6521 Bug 18535 - abidiff reports false positive ABI difference for libstdc++ 
When the DWARF reader of libabigail sees a data member for a given
class flagged as being a declaration, it considers the declaration as
being a definition.  The reason why it doesn't strictly trust the
"is_declaration" flag of DWARF is that some DWARF producers sometimes
wrongly emit that flag.

But then, it turns out that a class declaration can have a *static*
data member without loosing its declaration-only property.  This patch
thus changes the behaviour of the DWARF reader to make it consider the
class declaration as being a definition when the class has a
*non-static* data member; a static data member only is not enough to
make the class declaration become a definition.

	* src/abg-dwarf-reader.cc (build_class_type_and_add_to_ir): The
	presence of a data member shouldn't make a declaration-only class
	loose its declaration-only-ness; the presence of a enon-static*
	data member should.
	* tests/data/test-read-dwarf/test15-pr18892.so.abi: Adjust.
	* tests/data/test-read-dwarf/test16-pr18904.so.abi: Likewise.
	* tests/data/test-diff-filter/test31-pr18535-libstdc++-4.8.3.so:
	New binary test input.
	* tests/data/test-diff-filter/test31-pr18535-libstdc++-4.9.2.so:
	Likewise.
	* tests/data/test-diff-filter/test31-pr18535-libstdc++-report-0.txt:
	New test reference output.
	* tests/data/Makefile.am: Add the new test material to the build
	system.
	* tests/test-diff-filter.cc (in_out_specs): Add the new test
	inputs to the set of inputs to consider.

Signed-off-by: Dodji Seketeli <dodji@redhat.com>
2015-09-24 11:51:56 +02:00

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// -*- Mode: C++ -*-
//
// 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 ELF files containing DWARF
/// debugging information 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 abidiff command line comparison tool.
///
/// 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"
using std::string;
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* abidiff_options;
const char* in_report_path;
const char* out_report_path;
}; // end struct InOutSpec;
InOutSpec in_out_specs[] =
{
{
"data/test-diff-filter/test0-v0.o",
"data/test-diff-filter/test0-v1.o",
"--no-linkage-name --no-redundant",
"data/test-diff-filter/test0-report.txt",
"output/test-diff-filter/test0-report.txt",
},
{
"data/test-diff-filter/test0-v0.o",
"data/test-diff-filter/test0-v1.o",
"--harmless --no-linkage-name --no-redundant",
"data/test-diff-filter/test01-report.txt",
"output/test-diff-filter/test01-report.txt",
},
{
"data/test-diff-filter/test1-v0.o",
"data/test-diff-filter/test1-v1.o",
"--no-linkage-name --no-redundant",
"data/test-diff-filter/test1-report.txt",
"output/test-diff-filter/test1-report.txt",
},
{
"data/test-diff-filter/test2-v0.o",
"data/test-diff-filter/test2-v1.o",
"--no-linkage-name --no-redundant",
"data/test-diff-filter/test2-report.txt",
"output/test-diff-filter/test2-report.txt",
},
{
"data/test-diff-filter/test3-v0.o",
"data/test-diff-filter/test3-v1.o",
"--no-linkage-name --no-redundant",
"data/test-diff-filter/test3-report.txt",
"output/test-diff-filter/test3-report.txt",
},
{
"data/test-diff-filter/test4-v0.o",
"data/test-diff-filter/test4-v1.o",
"--no-linkage-name --no-redundant",
"data/test-diff-filter/test4-report.txt",
"output/test-diff-filter/test4-report.txt",
},
{
"data/test-diff-filter/test5-v0.o",
"data/test-diff-filter/test5-v1.o",
"--no-linkage-name --no-redundant",
"data/test-diff-filter/test5-report.txt",
"output/test-diff-filter/test5-report.txt",
},
{
"data/test-diff-filter/test6-v0.o",
"data/test-diff-filter/test6-v1.o",
"--no-linkage-name --no-redundant",
"data/test-diff-filter/test6-report.txt",
"output/test-diff-filter/test6-report.txt",
},
{
"data/test-diff-filter/test7-v0.o",
"data/test-diff-filter/test7-v1.o",
"--no-linkage-name --no-redundant",
"data/test-diff-filter/test7-report.txt",
"output/test-diff-filter/test7-report.txt",
},
{
"data/test-diff-filter/test8-v0.o",
"data/test-diff-filter/test8-v1.o",
"--no-linkage-name --no-redundant",
"data/test-diff-filter/test8-report.txt",
"output/test-diff-filter/test8-report.txt",
},
{
"data/test-diff-filter/test9-v0.o",
"data/test-diff-filter/test9-v1.o",
"--no-linkage-name --no-redundant",
"data/test-diff-filter/test9-report.txt",
"output/test-diff-filter/test9-report.txt",
},
{
"data/test-diff-filter/test10-v0.o",
"data/test-diff-filter/test10-v1.o",
"--no-linkage-name --no-redundant",
"data/test-diff-filter/test10-report.txt",
"output/test-diff-filter/test10-report.txt",
},
{
"data/test-diff-filter/test11-v0.o",
"data/test-diff-filter/test11-v1.o",
"--no-linkage-name --no-redundant",
"data/test-diff-filter/test11-report.txt",
"output/test-diff-filter/test11-report.txt",
},
{
"data/test-diff-filter/test12-v0.o",
"data/test-diff-filter/test12-v1.o",
"--no-linkage-name --no-redundant",
"data/test-diff-filter/test12-report.txt",
"output/test-diff-filter/test12-report.txt",
},
{
"data/test-diff-filter/test13-v0.o",
"data/test-diff-filter/test13-v1.o",
"--no-linkage-name --no-redundant",
"data/test-diff-filter/test13-report.txt",
"output/test-diff-filter/test13-report.txt",
},
{
"data/test-diff-filter/test14-v0.o",
"data/test-diff-filter/test14-v1.o",
"--no-redundant",
"data/test-diff-filter/test14-0-report.txt",
"output/test-diff-filter/test14-0-report.txt",
},
{
"data/test-diff-filter/test14-v0.o",
"data/test-diff-filter/test14-v1.o",
"--redundant",
"data/test-diff-filter/test14-1-report.txt",
"output/test-diff-filter/test14-1-report.txt",
},
{
"data/test-diff-filter/test15-v0.o",
"data/test-diff-filter/test15-v1.o",
"--no-redundant",
"data/test-diff-filter/test15-0-report.txt",
"output/test-diff-filter/test15-0-report.txt",
},
{
"data/test-diff-filter/test15-v0.o",
"data/test-diff-filter/test15-v1.o",
"--redundant",
"data/test-diff-filter/test15-1-report.txt",
"output/test-diff-filter/test15-1-report.txt",
},
{
"data/test-diff-filter/test16-v0.o",
"data/test-diff-filter/test16-v1.o",
"--no-redundant",
"data/test-diff-filter/test16-report.txt",
"output/test-diff-filter/test16-report.txt",
},
{
"data/test-diff-filter/test16-v0.o",
"data/test-diff-filter/test16-v1.o",
"--redundant",
"data/test-diff-filter/test16-report-2.txt",
"output/test-diff-filter/test16-report-2.txt",
},
{
"data/test-diff-filter/test17-v0.o",
"data/test-diff-filter/test17-v1.o",
"--no-redundant",
"data/test-diff-filter/test17-0-report.txt",
"output/test-diff-filter/test17-0-report.txt",
},
{
"data/test-diff-filter/test17-v0.o",
"data/test-diff-filter/test17-v1.o",
"--redundant",
"data/test-diff-filter/test17-1-report.txt",
"output/test-diff-filter/test17-1-report.txt",
},
{
"data/test-diff-filter/test18-v0.o",
"data/test-diff-filter/test18-v1.o",
"--no-redundant",
"data/test-diff-filter/test18-report.txt",
"output/test-diff-filter/test18-report.txt",
},
{
"data/test-diff-filter/test19-enum-v0.o",
"data/test-diff-filter/test19-enum-v1.o",
"--no-redundant",
"data/test-diff-filter/test19-enum-report-0.txt",
"output/test-diff-filter/test19-enum-report-0.txt",
},
{
"data/test-diff-filter/test19-enum-v0.o",
"data/test-diff-filter/test19-enum-v1.o",
"--harmless",
"data/test-diff-filter/test19-enum-report-1.txt",
"output/test-diff-filter/test19-enum-report-1.txt",
},
{
"data/test-diff-filter/test20-inline-v0.o",
"data/test-diff-filter/test20-inline-v1.o",
"--no-redundant",
"data/test-diff-filter/test20-inline-report-0.txt",
"output/test-diff-filter/test20-inline-report-0.txt",
},
{
"data/test-diff-filter/test20-inline-v0.o",
"data/test-diff-filter/test20-inline-v1.o",
"--harmless",
"data/test-diff-filter/test20-inline-report-1.txt",
"output/test-diff-filter/test20-inline-report-1.txt",
},
{
"data/test-diff-filter/libtest21-compatible-vars-v0.so",
"data/test-diff-filter/libtest21-compatible-vars-v1.so",
"--harmless",
"data/test-diff-filter/test21-compatible-vars-report-0.txt",
"output/test-diff-filter/test21-compatible-vars-report-0.txt",
},
{
"data/test-diff-filter/libtest21-compatible-vars-v0.so",
"data/test-diff-filter/libtest21-compatible-vars-v1.so",
"--no-redundant",
"data/test-diff-filter/test21-compatible-vars-report-1.txt",
"output/test-diff-filter/test21-compatible-vars-report-1.txt",
},
{
"data/test-diff-filter/libtest22-compatible-fns-v0.so",
"data/test-diff-filter/libtest22-compatible-fns-v1.so",
"--harmless",
"data/test-diff-filter/test22-compatible-fns-report-0.txt",
"output/test-diff-filter/test22-compatible-fns-report-0.txt",
},
{
"data/test-diff-filter/libtest22-compatible-fns-v0.so",
"data/test-diff-filter/libtest22-compatible-fns-v1.so",
"--no-redundant",
"data/test-diff-filter/test22-compatible-fns-report-1.txt",
"output/test-diff-filter/test22-compatible-fns-report-1.txt",
},
{
"data/test-diff-filter/libtest23-redundant-fn-parm-change-v0.so",
"data/test-diff-filter/libtest23-redundant-fn-parm-change-v1.so",
"",
"data/test-diff-filter/test23-redundant-fn-parm-change-report-0.txt ",
"output/test-diff-filter/test23-redundant-fn-parm-change-report-0.txt ",
},
{
"data/test-diff-filter/libtest24-compatible-vars-v0.so",
"data/test-diff-filter/libtest24-compatible-vars-v1.so",
"",
"data/test-diff-filter/test24-compatible-vars-report-0.txt ",
"output/test-diff-filter/test24-compatible-vars-report-0.txt ",
},
{
"data/test-diff-filter/libtest24-compatible-vars-v0.so",
"data/test-diff-filter/libtest24-compatible-vars-v1.so",
"--harmless",
"data/test-diff-filter/test24-compatible-vars-report-1.txt ",
"output/test-diff-filter/test24-compatible-vars-report-1.txt ",
},
{
"data/test-diff-filter/libtest25-cyclic-type-v0.so",
"data/test-diff-filter/libtest25-cyclic-type-v1.so",
"",
"data/test-diff-filter/test25-cyclic-type-report-0.txt ",
"output/test-diff-filter/test25-cyclic-type-report-0.txt "
},
{
"data/test-diff-filter/libtest25-cyclic-type-v0.so",
"data/test-diff-filter/libtest25-cyclic-type-v1.so",
"--redundant",
"data/test-diff-filter/test25-cyclic-type-report-1.txt ",
"output/test-diff-filter/test25-cyclic-type-report-1.txt "
},
{
"data/test-diff-filter/libtest26-qualified-redundant-node-v0.so",
"data/test-diff-filter/libtest26-qualified-redundant-node-v1.so",
"",
"data/test-diff-filter/test26-qualified-redundant-node-report-0.txt",
"output/test-diff-filter/test26-qualified-redundant-node-report-0.txt"
},
{
"data/test-diff-filter/libtest26-qualified-redundant-node-v0.so",
"data/test-diff-filter/libtest26-qualified-redundant-node-v1.so",
"--redundant",
"data/test-diff-filter/test26-qualified-redundant-node-report-1.txt",
"output/test-diff-filter/test26-qualified-redundant-node-report-1.txt"
},
{
"data/test-diff-filter/libtest27-redundant-and-filtered-children-nodes-v0.so",
"data/test-diff-filter/libtest27-redundant-and-filtered-children-nodes-v1.so",
"--no-linkage-name --no-redundant",
"data/test-diff-filter/test27-redundant-and-filtered-children-nodes-report-0.txt",
"output/test-diff-filter/test27-redundant-and-filtered-children-nodes-report-0.txt"
},
{
"data/test-diff-filter/libtest27-redundant-and-filtered-children-nodes-v0.so",
"data/test-diff-filter/libtest27-redundant-and-filtered-children-nodes-v1.so",
"--no-linkage-name --redundant",
"data/test-diff-filter/test27-redundant-and-filtered-children-nodes-report-1.txt",
"output/test-diff-filter/test27-redundant-and-filtered-children-nodes-report-1.txt"
},
{
"data/test-diff-filter/libtest27-redundant-and-filtered-children-nodes-v0.so",
"data/test-diff-filter/libtest27-redundant-and-filtered-children-nodes-v1.so",
"--no-linkage-name --redundant --harmless",
"data/test-diff-filter/test27-redundant-and-filtered-children-nodes-report-2.txt",
"output/test-diff-filter/test27-redundant-and-filtered-children-nodes-report-2.txt"
},
{
"data/test-diff-filter/libtest28-redundant-and-filtered-children-nodes-v0.so",
"data/test-diff-filter/libtest28-redundant-and-filtered-children-nodes-v1.so",
"--no-linkage-name --no-redundant",
"data/test-diff-filter/test28-redundant-and-filtered-children-nodes-report-0.txt",
"output/test-diff-filter/test28-redundant-and-filtered-children-nodes-report-0.txt",
},
{
"data/test-diff-filter/libtest28-redundant-and-filtered-children-nodes-v0.so",
"data/test-diff-filter/libtest28-redundant-and-filtered-children-nodes-v1.so",
"--no-linkage-name --redundant --harmless",
"data/test-diff-filter/test28-redundant-and-filtered-children-nodes-report-1.txt",
"output/test-diff-filter/test28-redundant-and-filtered-children-nodes-report-1.txt",
},
{
"data/test-diff-filter/test29-finer-redundancy-marking-v0.o",
"data/test-diff-filter/test29-finer-redundancy-marking-v1.o",
"--no-linkage-name --no-redundant",
"data/test-diff-filter/test29-finer-redundancy-marking-report-0.txt",
"output/test-diff-filter/test29-finer-redundancy-marking-report-0.txt",
},
{
"data/test-diff-filter/test30-pr18904-rvalueref-liba.so",
"data/test-diff-filter/test30-pr18904-rvalueref-libb.so",
"--no-linkage-name --no-redundant",
"data/test-diff-filter/test30-pr18904-rvalueref-report0.txt",
"output/test-diff-filter/test30-pr18904-rvalueref-report0.txt",
},
{
"data/test-diff-filter/test31-pr18535-libstdc++-4.8.3.so",
"data/test-diff-filter/test31-pr18535-libstdc++-4.9.2.so",
"--no-linkage-name --no-redundant",
"data/test-diff-filter/test31-pr18535-libstdc++-report-0.txt",
"output/test-diff-filter/test31-pr18535-libstdc++-report-0.txt",
},
// This should be the last entry
{NULL, NULL, NULL, NULL, NULL}
};
int
main()
{
using abigail::tests::get_src_dir;
using abigail::tests::get_build_dir;
using abigail::tools_utils::ensure_parent_dir_created;
using abigail::tools_utils::abidiff_status;
bool is_ok = true;
string in_elfv0_path, in_elfv1_path,
abidiff_options, abidiff, cmd,
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;
abidiff_options = s->abidiff_options;
ref_diff_report_path = get_src_dir() + "/tests/" + s->in_report_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;
}
abidiff = get_build_dir() + "/tools/abidiff";
abidiff += " " + abidiff_options;
cmd = abidiff + " " + in_elfv0_path + " " + in_elfv1_path;
cmd += " > " + out_diff_report_path;
bool abidiff_ok = true;
abidiff_status status =
static_cast<abidiff_status>(system(cmd.c_str()) & 255);
if (abigail::tools_utils::abidiff_status_has_error(status))
abidiff_ok = false;
if (abidiff_ok)
{
cmd = "diff -u " + ref_diff_report_path
+ " " + out_diff_report_path;
if (system(cmd.c_str()))
is_ok = false;
}
else
is_ok = false;
}
return !is_ok;
}
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