Mesa (master): symbols-check: fix `nm` invocation on MacOS
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Sun Aug 4 10:09:29 UTC 2019
Module: Mesa
Branch: master
Commit: 8f1cdac7937eeb1a7874e6741fb32a7d6154382b
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=8f1cdac7937eeb1a7874e6741fb32a7d6154382b
Author: Eric Engestrom <eric.engestrom at intel.com>
Date: Sat Aug 3 18:08:38 2019 +0100
symbols-check: fix `nm` invocation on MacOS
According to Mac OSX's man page [1], this is how we should get the list
of exported symbols:
nm -g -P foo.dylib
-g to only show the exported symbols
-P to show it in a "portable" format, ie. readable by a script
Since this is supported by GNU nm as well, let's use that everywhere,
although some care needs to be taken as there are some differences in
the output.
[1] https://www.unix.com/man-page/osx/1/nm/
Signed-off-by: Eric Engestrom <eric.engestrom at intel.com>
Tested-by: Vinson Lee <vlee at freedesktop.org>
---
bin/symbols-check.py | 18 ++++++++++++++----
1 file changed, 14 insertions(+), 4 deletions(-)
diff --git a/bin/symbols-check.py b/bin/symbols-check.py
index 39ad1451852..329ca5f46a0 100644
--- a/bin/symbols-check.py
+++ b/bin/symbols-check.py
@@ -1,8 +1,9 @@
#!/usr/bin/env python
import argparse
-import subprocess
import os
+import platform
+import subprocess
# This list contains symbols that _might_ be exported for some platforms
PLATFORM_SYMBOLS = [
@@ -23,13 +24,22 @@ def get_symbols(nm, lib):
List all the (non platform-specific) symbols exported by the library
'''
symbols = []
- output = subprocess.check_output([nm, '--format=bsd', '-D', '--defined-only', lib],
+ platform_name = platform.system()
+ output = subprocess.check_output([nm, '-gP', lib],
stderr=open(os.devnull, 'w')).decode("ascii")
for line in output.splitlines():
- (_, _, symbol_name) = line.split()
- if symbol_name in PLATFORM_SYMBOLS:
+ fields = line.split()
+ if len(fields) == 2 or fields[1] == 'U':
continue
+ symbol_name = fields[0]
+ if platform_name == 'Linux':
+ if symbol_name in PLATFORM_SYMBOLS:
+ continue
+ elif platform_name == 'Darwin':
+ assert symbol_name[0] == '_'
+ symbol_name = symbol_name[1:]
symbols.append(symbol_name)
+
return symbols
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