projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 2bbd06bc JM |
1 | #!/usr/bin/python |
| 2 | # Print a list of symbols exported by some headers that would | |
| 3 | # otherwise be in the user's namespace. | |
| 04277e02 | 4 | # Copyright (C) 2018-2019 Free Software Foundation, Inc. |
| 2bbd06bc JM |
5 | # This file is part of the GNU C Library. |
| 6 | # | |
| 7 | # The GNU C Library is free software; you can redistribute it and/or | |
| 8 | # modify it under the terms of the GNU Lesser General Public | |
| 9 | # License as published by the Free Software Foundation; either | |
| 10 | # version 2.1 of the License, or (at your option) any later version. | |
| 11 | # | |
| 12 | # The GNU C Library is distributed in the hope that it will be useful, | |
| 13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 | # Lesser General Public License for more details. | |
| 16 | # | |
| 17 | # You should have received a copy of the GNU Lesser General Public | |
| 18 | # License along with the GNU C Library; if not, see | |
| 19 | # <http://www.gnu.org/licenses/>. | |
| 20 | ||
| 21 | import argparse | |
| 22 | ||
| 23 | import glibcconform | |
| 24 | ||
| 25 | # Extra symbols possibly not found through -aux-info but still | |
| 26 | # reserved by the standard: either data symbols, or symbols where the | |
| 27 | # standard leaves unspecified whether the identifier is a macro or | |
| 28 | # defined with external linkage. | |
| 29 | EXTRA_SYMS = {} | |
| 30 | EXTRA_SYMS['ISO'] = {'errno', 'setjmp', 'va_end'} | |
| 31 | EXTRA_SYMS['ISO99'] = EXTRA_SYMS['ISO'] | {'math_errhandling'} | |
| 32 | # stdatomic.h not yet covered by conformance tests; as per DR#419, all | |
| 33 | # the generic functions there or may not be defined with external | |
| 34 | # linkage (but are reserved in any case). | |
| 35 | EXTRA_SYMS['ISO11'] = EXTRA_SYMS['ISO99'] | |
| 36 | # The following lists may not be exhaustive. | |
| 37 | EXTRA_SYMS['POSIX'] = (EXTRA_SYMS['ISO'] | |
| 38 | | {'environ', 'sigsetjmp', 'optarg', 'optind', 'opterr', | |
| 39 | 'optopt', 'tzname'}) | |
| 40 | EXTRA_SYMS['XPG4'] = (EXTRA_SYMS['POSIX'] | |
| 41 | | {'signgam', 'loc1', 'loc2', 'locs', 'daylight', | |
| 42 | 'timezone'}) | |
| 43 | EXTRA_SYMS['XPG42'] = EXTRA_SYMS['XPG4'] | {'getdate_err', 'h_errno'} | |
| 44 | EXTRA_SYMS['UNIX98'] = EXTRA_SYMS['XPG42'] | |
| 45 | EXTRA_SYMS['XOPEN2K'] = (EXTRA_SYMS['POSIX'] | |
| 46 | | {'signgam', 'daylight', 'timezone', 'getdate_err', | |
| 47 | 'h_errno', 'in6addr_any', 'in6addr_loopback'}) | |
| 48 | EXTRA_SYMS['POSIX2008'] = (EXTRA_SYMS['POSIX'] | |
| 49 | | {'in6addr_any', 'in6addr_loopback'}) | |
| 50 | EXTRA_SYMS['XOPEN2K8'] = (EXTRA_SYMS['POSIX2008'] | |
| 51 | | {'signgam', 'daylight', 'timezone', 'getdate_err'}) | |
| 52 | ||
| 53 | ||
| 54 | def main(): | |
| 55 | """The main entry point.""" | |
| 56 | parser = argparse.ArgumentParser(description='List exported symbols.') | |
| 57 | parser.add_argument('--headers', metavar='HEADERS', | |
| 58 | help='list of headers') | |
| 59 | parser.add_argument('--standard', metavar='STD', | |
| 60 | help='standard to use when processing headers') | |
| 61 | parser.add_argument('--cc', metavar='CC', | |
| 62 | help='C compiler to use') | |
| 63 | parser.add_argument('--flags', metavar='CFLAGS', | |
| 64 | help='Compiler flags to use with CC') | |
| 65 | args = parser.parse_args() | |
| 66 | fns = set() | |
| 67 | compiler = '%s %s' % (args.cc, args.flags) | |
| 68 | for header in args.headers.split(): | |
| 69 | fns |= glibcconform.list_exported_functions(compiler, args.standard, | |
| 70 | header) | |
| 71 | fns |= EXTRA_SYMS[args.standard] | |
| 72 | print('\n'.join(sorted(fn for fn in fns if not fn.startswith('_')))) | |
| 73 | ||
| 74 | ||
| 75 | if __name__ == '__main__': | |
| 76 | main() |