src/wscript_build: add task to create def file on windows, inspired by waf/extras...
authorPaul Brossier <piem@piem.org>
Tue, 3 Oct 2017 07:07:14 +0000 (09:07 +0200)
committerPaul Brossier <piem@piem.org>
Tue, 3 Oct 2017 07:07:14 +0000 (09:07 +0200)
src/wscript_build

index aa85d95..a370622 100644 (file)
@@ -25,7 +25,7 @@ ctx(features = 'c',
 if ctx.env['DEST_OS'] in ['ios', 'iosimulator']:
     build_features = ['cstlib', 'cshlib']
 elif ctx.env['DEST_OS'] in ['win32', 'win64']:
-    build_features = ['cstlib', 'cshlib']
+    build_features = ['cstlib', 'cshlib gensyms']
 elif ctx.env['DEST_OS'] in ['emscripten']:
     build_features = ['cstlib','cshlib']
 elif '--static' in ctx.env['LDFLAGS'] or '--static' in ctx.env['LINKFLAGS']:
@@ -40,10 +40,48 @@ from waflib.Tools.c import cstlib
 from waflib.Tools.fc import fcstlib
 fcstlib.inst_to = cstlib.inst_to = '${LIBDIR}'
 
+import re
+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','.+?')
+        binary_path = self.generator.link_task.outputs[0].abspath()
+        if 'msvc' in self.env.CC_NAME:
+            reg_compiled = re.compile(r'External\s+\|\s+_(?P<symbol>%s)\b' % reg)
+            cmd =(self.env.DUMPBIN or['dumpbin'])+['/symbols', binary_path]
+        else: # using gcc? assume we have nm
+            reg_compiled = re.compile(r'(T|D)\s+_(?P<symbol>%s)\b'%reg)
+            cmd = (self.env.NM or ['nm']) + ['-g', binary_path]
+        print (cmd)
+        dump_output = self.generator.bld.cmd_and_log(cmd, quiet=STDOUT)
+        print (dump_output)
+        syms = []
+        for m in reg_compiled.finditer(dump_output):
+            syms += [m.group('symbol')]
+            print (m.group('symbol'))
+        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)
+
 for target in build_features:
     ctx(features = 'c ' + target,
             use = uselib + ['lib_objects'],
             target = 'aubio',
+            export_symbols_regex=r'(?:.*aubio|fvec|lvec|cvec|fmat)_.*',
             vnum = ctx.env['LIB_VERSION'])
 
 # install headers, except _priv.h ones