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From: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
To: linux-kernel@vger.kernel.org
Subject: Detecting section mismatches in vmlinux
Date: Thu, 22 Feb 2007 00:57:28 +0900 (JST)	[thread overview]
Message-ID: <20070222.005728.126762028.anemo@mba.ocn.ne.jp> (raw)

Until 2.6.16 or so, we had reference_init.pl and
reference_discarded.pl to check section mismatches in vmlinux.

Are there any alternatives of this in recent kernel?

Now "modpost vmlinux" is executed during normal build, but it seems
the pass can not detect these mismatches.

For example:

$ ../build-i386/scripts/mod/modpost ../build-i386/mm/built-in.o
WARNING: ../build-i386/mm/built-in.o - Section mismatch: reference to .init.data:initkmem_list3 from .text between 'set_up_list3s' (at offset 0x18382) and '__kmem_cache_destroy'

set_up_list3s() in slab.c is not marked as __init and it references
initkmem_list3[] which is marked as __initdata.  So it is not false
positive.  But "modpost vmlinux" does not report it.

---
Atsushi Nemoto

             reply	other threads:[~2007-02-21 15:57 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-21 15:57 Atsushi Nemoto [this message]
2007-02-24 18:53 ` Detecting section mismatches in vmlinux Atsushi Nemoto
2007-02-24 20:07   ` Sam Ravnborg
2007-02-24 23:25   ` Sam Ravnborg
2007-02-25 15:48     ` Atsushi Nemoto
2007-02-25 20:53       ` [PATCH] x86_64: fix section mismatch warnings Sam Ravnborg
2007-02-27 20:25         ` Andrew Morton

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