mirror of
https://github.com/mpv-player/mpv
synced 2024-12-19 21:31:52 +00:00
c09760d948
Thanks to ita1024 for the patch. Fixes https://github.com/mpv-player/mpv/issues/4894 Signed-off-by: wm4 <wm4@nowhere>
53 lines
2.2 KiB
Python
53 lines
2.2 KiB
Python
#! /usr/bin/env python
|
|
# encoding: utf-8
|
|
# Original source: waflib/extras/syms.py from waf git 610d0d59f (New BSD License)
|
|
|
|
"""
|
|
set the list of symbols exported from a dynamic library
|
|
to use the tool, do something like:
|
|
|
|
def build(ctx):
|
|
ctx(features='c cshlib syms', source='a.c b.c', export_symbols_def='syms.def', target='testlib')
|
|
|
|
only the symbols listed in the file syms.def will be exported.
|
|
"""
|
|
|
|
from waflib.Context import STDOUT
|
|
from waflib.Task import Task
|
|
from waflib.Errors import WafError
|
|
from waflib.TaskGen import feature, after_method
|
|
|
|
class compile_sym(Task):
|
|
def run(self):
|
|
lsyms = []
|
|
for line in self.inputs[0].read().split():
|
|
lsyms.append(line.strip())
|
|
lsyms.sort()
|
|
if self.env.DEST_BINFMT == 'pe':
|
|
self.outputs[0].write('EXPORTS\n' + '\n'.join(lsyms))
|
|
elif self.env.DEST_BINFMT == 'elf':
|
|
self.outputs[0].write('{ global:\n' + ';\n'.join(lsyms) + ";\nlocal: *; };\n")
|
|
elif self.env.DEST_BINFMT == 'mac-o':
|
|
self.outputs[0].write('\n'.join("_"+sym for sym in lsyms) + '\n')
|
|
else:
|
|
raise WafError('NotImplemented')
|
|
|
|
@feature('syms')
|
|
@after_method('process_source', 'process_use', 'apply_link', 'process_uselib_local', 'propagate_uselib_vars')
|
|
def do_the_symbol_stuff(self):
|
|
tsk = self.create_task('compile_sym',
|
|
[self.path.find_node(self.export_symbols_def)],
|
|
self.path.find_or_declare(getattr(self, 'sym_filename', self.target + '.def')))
|
|
self.link_task.set_run_after(tsk)
|
|
self.link_task.dep_nodes.append(tsk.outputs[0])
|
|
if 'msvc' in (self.env.CC_NAME, self.env.CXX_NAME):
|
|
self.link_task.env.append_value('LINKFLAGS', ['/def:' + tsk.outputs[0].bldpath()])
|
|
elif self.env.DEST_BINFMT == 'pe': #gcc on windows takes *.def as an additional input
|
|
self.link_task.inputs.append(tsk.outputs[0])
|
|
elif self.env.DEST_BINFMT == 'elf':
|
|
self.link_task.env.append_value('LINKFLAGS', ['-Wl,-version-script', '-Wl,' + tsk.outputs[0].bldpath()])
|
|
elif self.env.DEST_BINFMT == 'mac-o':
|
|
self.link_task.env.append_value('LINKFLAGS', ['-exported_symbols_list', tsk.outputs[0].bldpath()])
|
|
else:
|
|
raise WafError('NotImplemented')
|