dump-static-initializers.py for mac.

BUG=94925
TEST=none
R=jochen@chromium.org

Review URL: https://codereview.chromium.org/8776039

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@228805 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 60 insertions, 0 deletions

diff --git a/tools/mac/dump-static-initializers.py b/tools/mac/dump-static-initializers.py
new file mode 100755
index 0000000..9c7b91a
--- /dev/null
+++ b/tools/mac/dump-static-initializers.py
@@ -0,0 +1,60 @@
+#!/usr/bin/env python
+# Copyright (c) 2013 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+
+import optparse
+import re
+import subprocess
+import sys
+
+# Matches for example:
+# [     1] 000001ca 64 (N_SO         ) 00     0000   0000000000000000 'test.cc'
+dsymutil_file_re = re.compile("N_SO.*'([^']*)'")
+
+# Matches for example:
+# [     2] 000001d2 66 (N_OSO        ) 00     0001   000000004ed856a0 '/Volumes/MacintoshHD2/src/chrome-git/src/test.o'
+dsymutil_o_file_re = re.compile("N_OSO.*'([^']*)'")
+
+# Matches for example:
+# [     8] 00000233 24 (N_FUN        ) 01     0000   0000000000001b40 '__GLOBAL__I_s'
+# [185989] 00dc69ef 26 (N_STSYM      ) 02     0000   00000000022e2290 '__GLOBAL__I_a'
+dsymutil_re = re.compile(r"(?:N_FUN|N_STSYM).*\s[0-9a-f]*\s'__GLOBAL__I_")
+
+def ParseDsymutil(binary):
+  """Given a binary, prints source and object filenames for files with
+  static initializers.
+  """
+
+  child = subprocess.Popen(['dsymutil', '-s', binary], stdout=subprocess.PIPE)
+  for line in child.stdout:
+    file_match = dsymutil_file_re.search(line)
+    if file_match:
+      current_filename = file_match.group(1)
+    else:
+      o_file_match = dsymutil_o_file_re.search(line)
+      if o_file_match:
+        current_o_filename = o_file_match.group(1)
+      else:
+        match = dsymutil_re.search(line)
+        if match:
+          print current_filename
+          print current_o_filename
+          print
+
+
+def main():
+  parser = optparse.OptionParser(usage='%prog filename')
+  opts, args = parser.parse_args()
+  if len(args) != 1:
+    parser.error('missing filename argument')
+    return 1
+  binary = args[0]
+
+  ParseDsymutil(binary)
+  return 0
+
+
+if '__main__' == __name__:
+  sys.exit(main())