linux-kernel - [PATCH] bloat-o-meter: Include read-only data section in report

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Message-ID: <20110302181544.2f1b3be9@endymion.delvare>
Date:	Wed, 2 Mar 2011 18:15:44 +0100
From:	Jean Delvare <khali@...ux-fr.org>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	Andi Kleen <andi@...stfloor.org>, Nathan Lynch <ntl@...ox.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH] bloat-o-meter: Include read-only data section in report

I'm not sure why the read-only data section is excluded from the
report, it seems as relevant as the other data sections (b and d).

I've stripped the symbols starting with __mod_ as they can have their
names dynamically generated and thus comparison between binaries is
not possible.

Signed-off-by: Jean Delvare <khali@...ux-fr.org>
---
Disclaimer: I don't know anything about python.

 scripts/bloat-o-meter |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- linux-2.6.38-rc6.orig/scripts/bloat-o-meter	2011-03-02 17:55:46.000000000 +0100
+++ linux-2.6.38-rc6/scripts/bloat-o-meter	2011-03-02 17:57:05.000000000 +0100
@@ -17,7 +17,9 @@ def getsizes(file):
     sym = {}
     for l in os.popen("nm --size-sort " + file).readlines():
         size, type, name = l[:-1].split()
-        if type in "tTdDbB":
+        if type in "tTdDbBrR":
+            # strip generated symbols
+            if name[:6] == "__mod_": continue
             # function names begin with '.' on 64-bit powerpc
             if "." in name[1:]: name = "static." + name.split(".")[0]
             sym[name] = sym.get(name, 0) + int(size, 16)


-- 
Jean Delvare
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