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#!/usr/bin/perl
# Shared code for glibc conformance tests.
# Copyright (C) 2014-2016 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# The GNU C 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 2.1 of the License, or (at your option) any later version.
# The GNU C 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
# Lesser General Public License for more details.
# You should have received a copy of the GNU Lesser General Public
# License along with the GNU C Library; if not, see
# <http://www.gnu.org/licenses/>.
package GlibcConform;
require Exporter;
@ISA = qw(Exporter);
@EXPORT = qw(%CFLAGS list_exported_functions);
# Compiler options for each standard.
$CFLAGS{"ISO"} = "-ansi";
$CFLAGS{"ISO99"} = "-std=c99";
$CFLAGS{"ISO11"} = "-std=c11";
$CFLAGS{"POSIX"} = "-D_POSIX_C_SOURCE=199506L -ansi";
$CFLAGS{"XPG3"} = "-ansi -D_XOPEN_SOURCE";
$CFLAGS{"XPG4"} = "-ansi -D_XOPEN_SOURCE -D_XOPEN_SOURCE_EXTENDED";
$CFLAGS{"UNIX98"} = "-ansi -D_XOPEN_SOURCE=500";
$CFLAGS{"XOPEN2K"} = "-std=c99 -D_XOPEN_SOURCE=600";
$CFLAGS{"XOPEN2K8"} = "-std=c99 -D_XOPEN_SOURCE=700";
$CFLAGS{"POSIX2008"} = "-std=c99 -D_POSIX_C_SOURCE=200809L";
# Return a list of functions exported by a header, empty if an include
# of the header does not compile.
sub list_exported_functions {
my ($cc, $standard, $header, $tmpdir) = @_;
my ($cc_all) = "$cc -D_ISOMAC $CFLAGS{$standard}";
my ($tmpfile) = "$tmpdir/list-$$.c";
my ($auxfile) = "$tmpdir/list-$$.c.aux";
my ($ret);
my (%res) = ();
open (TMPFILE, ">$tmpfile") || die ("open $tmpfile: $!\n");
print TMPFILE "#include <$header>\n";
close (TMPFILE) || die ("close $tmpfile: $!\n");
$ret = system "$cc_all -c $tmpfile -o /dev/null -aux-info $auxfile > /dev/null";
unlink ($tmpfile) || die ("unlink $tmpfile: $!\n");
if ($ret != 0) {
return;
}
open (AUXFILE, "<$auxfile") || die ("open $auxfile: $!\n");
while (<AUXFILE>) {
s|/\*.*?\*/||g;
if (/^\s*$/) {
next;
}
# The word before a '(' that isn't '(*' is the function name
# before the argument list (not fully general, but sufficient for
# -aux-info output on standard headers).
if (/(\w+)\s*\([^*]/) {
$res{$1} = 1;
} else {
die ("couldn't parse -aux-info output: $_\n");
}
}
close (AUXFILE) || die ("close $auxfile: $!\n");
unlink ($auxfile) || die ("unlink $auxfile: $!\n");
return sort keys %res;
}
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