Bug 579131: Script to count number of global initializers in .so file…

…s. r=bhearsum
mozilla · Jul 19, 2010 · e05967d · e05967d
1 parent 71df273
commit e05967d
Showing 1 changed file with 14 additions and 0 deletions.
diff --git a/buildfarm/utils/count_ctors.py b/buildfarm/utils/count_ctors.py
@@ -0,0 +1,14 @@
+#!/usr/bin/python
+import subprocess, re
+def count_ctors(filename):
+    proc = subprocess.Popen(['readelf', '-W', '-S', filename], stdout=subprocess.PIPE)
+
+    for line in proc.stdout:
+        m = re.search("\.ctors\s+PROGBITS\s+[0-9a-f]+\s+[0-9a-f]+\s+([0-9a-f]+)", line)
+        if m:
+            return int(m.group(1), 16)
+
+if __name__ == '__main__':
+    import sys
+    for f in sys.argv[1:]:
+        print "%s\t%s" % (count_ctors(f), f)