ref: a9f463c7d49a3b4727de8ca17aaa5ac7366baeab
dir: /waf_gensyms.py/
import re
import os.path
from waflib import TaskGen, Task
from waflib.Context import STDOUT
from waflib.Utils import O644
class gen_sym_file(Task.Task):
color = 'BLUE'
inst_to = '${LIBDIR}'
def run(self):
syms = {}
reg = getattr(self.generator, 'export_symbols_regex','.+?')
if 'msvc' in self.env.CC_NAME:
outputs = [x.abspath() for x in self.generator.link_task.outputs]
binary_path = list(filter(lambda x: x.endswith('lib'), outputs))[0]
reg_compiled = re.compile(r'External\s+\|\s+(?P<symbol>%s)\b' % reg)
cmd =(self.env.LINK_CC) + ['/dump', '/symbols', binary_path]
else: # using gcc? assume we have nm
outputs = [x.abspath() for x in self.generator.link_task.outputs]
binary_path = list(filter(lambda x: x.endswith('dll'), outputs))[0]
reg_compiled = re.compile(r'(T|D)\s+_(?P<symbol>%s)\b'%reg)
cmd = (self.env.NM or ['nm']) + ['-g', binary_path]
dump_output = self.generator.bld.cmd_and_log(cmd, quiet=STDOUT)
syms = set([])
for m in reg_compiled.finditer(dump_output):
syms.add(m.group('symbol'))
syms = list(syms)
syms.sort()
self.outputs[0].write('EXPORTS\n'+'\n'.join(syms))
@TaskGen.feature('gensyms')
@TaskGen.after_method('process_source','process_use','apply_link','process_uselib_local','propagate_uselib_vars')
def gen_symbols(self):
#sym_file = self.path.find_or_declare(self.target + '.def')
sym_file_name = os.path.splitext(self.link_task.outputs[0].abspath())[0] + '.def'
sym_file = self.path.find_or_declare(sym_file_name)
symtask = self.create_task('gen_sym_file', self.link_task.outputs, sym_file)
self.add_install_files(install_to=self.link_task.inst_to, install_from=sym_file,
chmod=O644, task=self.link_task)