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build: syms: add support for Mach-O binaries

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Current code stolen from waf's extras, only supported 'pe' and 'elf'. OS X
uses the 'Mach-O' binary format (which waf calls 'mac-o'... go figure).

Add support for generating the global symbols file with nm and using it from
clang.
This commit is contained in:
Stefano Pigozzi 2014-02-19 08:22:34 +01:00
parent f6ed246826
commit 08170c6a67
1 changed files with 5 additions and 1 deletions
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6
waftools/syms.py
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@ -35,7 +35,7 @@ class gen_sym(Task):
kw['env'] = env
else:
if self.env.DEST_BINFMT == 'pe': #gcc uses nm, and has a preceding _ on windows
if self.env.DEST_BINFMT in ('pe', 'mac-o'): #gcc uses nm, and has a preceding _ on windows and osx
re_nm = re.compile(r'T\s+_(' + self.generator.export_symbols_regex + r')\b')
else:
re_nm = re.compile(r'T\s+(' + self.generator.export_symbols_regex + r')\b')
@ -56,6 +56,8 @@ class compile_sym(Task):
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))
else:
raise WafError('NotImplemented')
@ -76,6 +78,8 @@ def do_the_symbol_stuff(self):
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')