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Fix #2053

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Thomas Nagy 2017-10-04 20:41:21 +02:00
parent 2bbd4b62d5
commit 210874d297
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GPG Key ID: 49B4C67C05277AAA
2 changed files with 29 additions and 19 deletions
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7
playground/syms/wscript
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@ -9,3 +9,10 @@ def configure(ctx):
def build(ctx):
ctx(features='c cshlib syms', source='a.c b.c', export_symbols_regex='mylib_.*', target='testlib')
ctx(features='c cprogram', source='main.c', target='app', use='testlib')
# multiple shared libraries sharing the same file
ctx(features='c syms', source='a.c b.c', export_symbols_regex='mylib_.*', use='cshlib',
target='obj_example', sym_file='obj_example.def')
ctx(features='c cshlib syms', source=[], export_symbols_regex='mylib_.*', target='lib1', sym_file='obj_example.def')
ctx(features='c cshlib syms', source=[], export_symbols_regex='mylib_.*', target='lib2', sym_file='obj_example.def')

41
waflib/extras/syms.py
View File

@ -2,7 +2,7 @@
# encoding: utf-8
"""
this tool supports the export_symbols_regex to export the symbols in a shared library.
This tool supports the export_symbols_regex to export the symbols in a shared library.
by default, all symbols are exported by gcc, and nothing by msvc.
to use the tool, do something like:
@ -12,7 +12,6 @@ def build(ctx):
only the symbols starting with 'mylib_' will be exported.
"""
import os
import re
from waflib.Context import STDOUT
from waflib.Task import Task
@ -60,22 +59,26 @@ class compile_sym(Task):
@feature('syms')
@after_method('process_source', 'process_use', 'apply_link', 'process_uselib_local', 'propagate_uselib_vars')
def do_the_symbol_stuff(self):
ins = [x.outputs[0] for x in self.compiled_tasks]
self.gen_sym_tasks = [self.create_task('gen_sym', x, x.change_ext('.%d.sym' % self.idx)) for x in ins]
def_node = self.path.find_or_declare(getattr(self, 'sym_file', self.target + '.def'))
compiled_tasks = getattr(self, 'compiled_tasks', None)
if compiled_tasks:
ins = [x.outputs[0] for x in compiled_tasks]
self.gen_sym_tasks = [self.create_task('gen_sym', x, x.change_ext('.%d.sym' % self.idx)) for x in ins]
self.create_task('compile_sym', [x.outputs[0] for x in self.gen_sym_tasks], def_node)
tsk = self.create_task('compile_sym',
[x.outputs[0] for x in self.gen_sym_tasks],
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',['-Wl,-exported_symbols_list,'+tsk.outputs[0].bldpath()])
else:
raise WafError('NotImplemented')
link_task = getattr(self, 'link_task', None)
if link_task:
self.link_task.dep_nodes.append(def_node)
if 'msvc' in (self.env.CC_NAME, self.env.CXX_NAME):
self.link_task.env.append_value('LINKFLAGS', ['/def:' + def_node.bldpath()])
elif self.env.DEST_BINFMT == 'pe':
# gcc on windows takes *.def as an additional input
self.link_task.inputs.append(def_node)
elif self.env.DEST_BINFMT == 'elf':
self.link_task.env.append_value('LINKFLAGS', ['-Wl,-version-script', '-Wl,' + def_node.bldpath()])
elif self.env.DEST_BINFMT=='mac-o':
self.link_task.env.append_value('LINKFLAGS',['-Wl,-exported_symbols_list,' + def_node.bldpath()])
else:
raise WafError('NotImplemented')