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# VCSToChangeLog Quirks for the GNU C Library.
# Copyright (C) 2019-2021 Free Software Foundation, Inc.
#
# 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/>.
from frontend_c import Frontend
from projectquirks import ProjectQuirks
import re
class GlibcProjectQuirks(ProjectQuirks):
repo = 'git'
IGNORE_LIST = [
'ChangeLog',
'sysdeps/x86_64/dl-trampoline.h'
]
MACRO_QUIRKS = \
[{'orig': r'ElfW\((\w+)\)', 'sub': r'\1__ELF_NATIVE_CLASS_t'},
{'orig': r'(libc_freeres_fn)\s*\((\w+)\)', 'sub': r'static void \1__\2 (void)'},
{'orig': r'(IMPL)\s*\((\w+), .*\)$', 'sub': r'static void \1__\2 (void) {}'},
{'orig': r'__(BEGIN|END)_DECLS', 'sub': r''},
{'orig': 'weak_function', 'sub': '__attribute__ ((weak))'},
{'orig': r'ATTRIBUTE_(CONST|MALLOC|PURE|FORMAT)',
'sub': r'__attribute__ ((\1))'},
{'orig': r'__THROW', 'sub': r'__attribute__ ((__nothrow__ __LEAF))'},
{'orig': r'__THROWNL', 'sub': r'__attribute__ ((__nothrow__))'},
{'orig': r'__nonnull \(\(([^)]+)\)\)',
'sub': r'__attribute__ ((__nonnull__ \1))'},
{'orig': r'([^_])attribute_(\w+)', 'sub': r'\1__attribute__ ((\2))'},
{'orig': r'^attribute_(\w+)', 'sub': r'__attribute__ ((\1))'}]
def __init__(self, debug):
self.debug = debug
''' Build a list of macro calls used for symbol versioning and attributes.
glibc uses a set of macro calls that do not end with a semi-colon and hence
breaks our parser. Identify those calls from include/libc-symbols.h and
filter them out.
'''
with open('include/libc-symbols.h') as macrofile:
op = macrofile.readlines()
op = Frontend.remove_comments(self, op)
self.C_MACROS = [re.sub(r'.*define (\w+).*', r'\1', x[:-1]) for x in op \
if 'define ' in x]
super().__init__()
def get_project_quirks(debug):
''' Accessor function.
'''
return GlibcProjectQuirks(debug)
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