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-rw-r--r--REORG.TODO/conform/GlibcConform.pm74
1 files changed, 74 insertions, 0 deletions
diff --git a/REORG.TODO/conform/GlibcConform.pm b/REORG.TODO/conform/GlibcConform.pm
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+++ b/REORG.TODO/conform/GlibcConform.pm
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+#!/usr/bin/perl
+
+# Shared code for glibc conformance tests.
+
+# Copyright (C) 2014-2017 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";
+$CFLAGS{"XPG4"} = "-ansi -D_XOPEN_SOURCE";
+$CFLAGS{"XPG42"} = "-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;
+}