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84dbedb608
Some linknamespace tests were failing because of references to h_errno. References to this symbol should be allowed for XPG4, UNIX98 and XOPEN2K; this patch adds it to the list of allowed data symbols for those standards. (h_errno was removed in the 2008 edition of POSIX, so POSIX2008 and XOPEN2K8 references to it are genuine bugs; fortunately it's not a public data symbol - __h_errno_location is public, TLS h_errno is GLIBC_PRIVATE - so the symbol can simply be renamed to __h_errno to fix those bugs without the ABI complications normally associated with namespace issues for data symbols.) Tested for x86_64. * conform/list-header-symbols.pl (%extra_syms): Add h_errno for XPG4, UNIX98 and XOPEN2K. * conform/Makefile (test-xfail-XOPEN2K/grp.h/linknamespace): Remove variable. (test-xfail-XOPEN2K/pwd.h/linknamespace): Likewise.
83 lines
3.4 KiB
Raku
83 lines
3.4 KiB
Raku
#! /usr/bin/perl
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# Print a list of symbols exported by some headers that would
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# otherwise be in the user's namespace.
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# Copyright (C) 2014 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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# The GNU C Library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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# The GNU C Library is distributed in the hope that it will be useful,
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# but 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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# Lesser General 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 the GNU C Library; if not, see
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# <http://www.gnu.org/licenses/>.
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use GlibcConform;
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use Getopt::Long;
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GetOptions ('headers=s' => \$headers, 'standard=s' => \$standard,
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'flags=s' => \$flags, 'cc=s' => \$CC, 'tmpdir=s' => \$tmpdir);
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@headers = split (/\s+/, $headers);
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# Extra symbols possibly not found through -aux-info but still
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# reserved by the standard: either data symbols, or symbols where the
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# standard leaves unspecified whether the identifier is a macro or
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# defined with external linkage.
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$extra_syms{"ISO"} = ["errno", "setjmp", "va_end"];
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$extra_syms{"ISO99"} = ["errno", "math_errhandling", "setjmp", "va_end"];
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# stdatomic.h not yet covered by conformance tests; as per DR#419, all
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# the generic functions there or may not be defined with external
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# linkage (but are reserved in any case).
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$extra_syms{"ISO11"} = ["errno", "math_errhandling", "setjmp", "va_end"];
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# The following lists may not be exhaustive.
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$extra_syms{"POSIX"} = ["errno", "setjmp", "va_end", "environ", "sigsetjmp",
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"optarg", "optind", "opterr", "optopt", "tzname"];
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$extra_syms{"XPG3"} = ["errno", "setjmp", "va_end", "environ", "signgam",
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"loc1", "loc2", "locs", "sigsetjmp", "optarg",
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"optind", "opterr", "optopt", "daylight", "timezone",
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"tzname"];
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$extra_syms{"XPG4"} = ["errno", "setjmp", "va_end", "environ", "signgam",
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"loc1", "loc2", "locs", "sigsetjmp", "optarg",
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"optind", "opterr", "optopt", "daylight", "timezone",
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"tzname", "getdate_err", "h_errno"];
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$extra_syms{"UNIX98"} = ["errno", "setjmp", "va_end", "environ", "signgam",
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"loc1", "loc2", "locs", "sigsetjmp", "optarg",
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"optind", "opterr", "optopt", "daylight", "timezone",
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"tzname", "getdate_err", "h_errno"];
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$extra_syms{"XOPEN2K"} = ["errno", "setjmp", "va_end", "environ", "signgam",
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"sigsetjmp", "optarg", "optind", "opterr", "optopt",
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"daylight", "timezone", "tzname", "getdate_err",
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"h_errno"];
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$extra_syms{"XOPEN2K8"} = ["errno", "setjmp", "va_end", "environ", "signgam",
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"sigsetjmp", "optarg", "optind", "opterr", "optopt",
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"daylight", "timezone", "tzname", "getdate_err"];
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$extra_syms{"POSIX2008"} = ["errno", "setjmp", "va_end", "environ",
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"sigsetjmp", "optarg", "optind", "opterr", "optopt",
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"tzname"];
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%user_syms = ();
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foreach my $header (@headers) {
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@syms = list_exported_functions ("$CC $flags", $standard, $header, $tmpdir);
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foreach my $sym (@syms) {
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if ($sym !~ /^_/) {
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$user_syms{$sym} = 1;
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}
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}
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}
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foreach my $sym (@{$extra_syms{$standard}}) {
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$user_syms{$sym} = 1;
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}
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foreach my $sym (sort keys %user_syms) {
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print "$sym\n";
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}
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