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2bbd06bcee
Continuing the move of test code from Perl to Python (which seems uncontroversial, unlike dependencies on Python in the actual build of glibc), this patch replaces conform/list-header-symbols.pl with a Python script, as a first step in converting the conform/ tests. (conform/glibcconform.py is an equivalent to GlibcConform.pm, containing code that will be relevant to move than one of the conform/ scripts.) Tested for x86_64, including verifying that the symbol lists generated are identical to those generated by the Perl version. * conform/glibcconform.py: New file. * conform/list-header-symbols.py: Likewise. * conform/list-header-symbols.pl: Remove. * conform/Makefile (tests-special): Only add linknamespace tests if [PYTHON]. ($(linknamespace-symlists-tests)): Use list-header-symbols.py.
78 lines
3.0 KiB
Python
78 lines
3.0 KiB
Python
#!/usr/bin/python
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# Shared code for glibc conformance tests.
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# Copyright (C) 2018 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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#
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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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#
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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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#
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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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import os.path
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import re
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import shutil
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import subprocess
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import tempfile
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# Compiler options for each standard.
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CFLAGS = {'ISO': '-ansi',
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'ISO99': '-std=c99',
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'ISO11': '-std=c11',
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'POSIX': '-D_POSIX_C_SOURCE=199506L -ansi',
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'XPG4': '-ansi -D_XOPEN_SOURCE',
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'XPG42': '-ansi -D_XOPEN_SOURCE -D_XOPEN_SOURCE_EXTENDED',
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'UNIX98': '-ansi -D_XOPEN_SOURCE=500',
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'XOPEN2K': '-std=c99 -D_XOPEN_SOURCE=600',
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'XOPEN2K8': '-std=c99 -D_XOPEN_SOURCE=700',
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'POSIX2008': '-std=c99 -D_POSIX_C_SOURCE=200809L'}
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def list_exported_functions(cc, standard, header):
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"""Return the set of functions exported by a header, empty if an
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include of the header does not compile.
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"""
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cc_all = '%s -D_ISOMAC %s' % (cc, CFLAGS[standard])
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# tempfile.TemporaryDirectory requires Python 3.2, so use mkdtemp.
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temp_dir = tempfile.mkdtemp()
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c_file_name = os.path.join(temp_dir, 'test.c')
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aux_file_name = os.path.join(temp_dir, 'test.c.aux')
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try:
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with open(c_file_name, 'w') as c_file:
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c_file.write('#include <%s>\n' % header)
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fns = set()
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cmd = ('%s -c %s -o /dev/null -aux-info %s'
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% (cc_all, c_file_name, aux_file_name))
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try:
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subprocess.check_call(cmd, shell=True)
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except subprocess.CalledProcessError:
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return fns
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with open(aux_file_name, 'r') as aux_file:
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for line in aux_file:
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line = re.sub(r'/\*.*?\*/', '', line)
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line = line.strip()
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if line:
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# The word before a '(' that isn't '(*' is the
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# function name before the argument list (not
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# fully general, but sufficient for -aux-info
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# output on standard headers).
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m = re.search(r'([A-Za-z0-9_]+) *\([^*]', line)
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if m:
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fns.add(m.group(1))
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else:
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raise ValueError("couldn't parse -aux-info output: %s"
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% line)
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finally:
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shutil.rmtree(temp_dir)
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return fns
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