1  # VCSToChangeLog Quirks for the GNU C Library.
       2  
       3  # Copyright (C) 2019-2023 Free Software Foundation, Inc.
       4  #
       5  # The GNU C Library is free software; you can redistribute it and/or
       6  # modify it under the terms of the GNU Lesser General Public
       7  # License as published by the Free Software Foundation; either
       8  # version 2.1 of the License, or (at your option) any later version.
       9  #
      10  # The GNU C Library is distributed in the hope that it will be useful,
      11  # but WITHOUT ANY WARRANTY; without even the implied warranty of
      12  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      13  # Lesser General Public License for more details.
      14  #
      15  # You should have received a copy of the GNU Lesser General Public
      16  # License along with the GNU C Library; if not, see
      17  # <http://www.gnu.org/licenses/>.
      18  
      19  from frontend_c import Frontend
      20  from projectquirks import ProjectQuirks
      21  import re
      22  
      23  class ESC[4;38;5;81mGlibcProjectQuirks(ESC[4;38;5;149mProjectQuirks):
      24      repo = 'git'
      25  
      26      IGNORE_LIST = [
      27          'ChangeLog',
      28          'sysdeps/x86_64/dl-trampoline.h'
      29      ]
      30  
      31      MACRO_QUIRKS = \
      32          [{'orig': r'ElfW\((\w+)\)', 'sub': r'\1__ELF_NATIVE_CLASS_t'},
      33           {'orig': r'(libc_freeres_fn)\s*\((\w+)\)', 'sub': r'static void \1__\2 (void)'},
      34           {'orig': r'(IMPL)\s*\((\w+), .*\)$', 'sub': r'static void \1__\2 (void) {}'},
      35           {'orig': r'__(BEGIN|END)_DECLS', 'sub': r''},
      36           {'orig': 'weak_function', 'sub': '__attribute__ ((weak))'},
      37           {'orig': r'ATTRIBUTE_(CONST|MALLOC|PURE|FORMAT)',
      38            'sub': r'__attribute__ ((\1))'},
      39           {'orig': r'__THROW', 'sub': r'__attribute__ ((__nothrow__ __LEAF))'},
      40           {'orig': r'__THROWNL', 'sub': r'__attribute__ ((__nothrow__))'},
      41           {'orig': r'__nonnull \(\(([^)]+)\)\)',
      42            'sub': r'__attribute__ ((__nonnull__ \1))'},
      43           {'orig': r'([^_])attribute_(\w+)', 'sub': r'\1__attribute__ ((\2))'},
      44           {'orig': r'^attribute_(\w+)', 'sub': r'__attribute__ ((\1))'}]
      45  
      46      def __init__(self, debug):
      47          self.debug = debug
      48          ''' Build a list of macro calls used for symbol versioning and attributes.
      49  
      50          glibc uses a set of macro calls that do not end with a semi-colon and hence
      51          breaks our parser.  Identify those calls from include/libc-symbols.h and
      52          filter them out.
      53          '''
      54          with open('include/libc-symbols.h') as macrofile:
      55              op = macrofile.readlines()
      56              op = Frontend.remove_comments(self, op)
      57              self.C_MACROS = [re.sub(r'.*define (\w+).*', r'\1', x[:-1]) for x in op \
      58                               if 'define ' in x]
      59  
      60          super().__init__()
      61  
      62  def get_project_quirks(debug):
      63      ''' Accessor function.
      64      '''
      65      return GlibcProjectQuirks(debug)