linux-kernel - Re: [PATCH] kbuild: make better section mismatch reports on i386 and mips

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 15 May 2007 22:47:54 +0200
From:	Sam Ravnborg <sam@...nborg.org>
To:	Atsushi Nemoto <anemo@....ocn.ne.jp>
Cc:	linux-kernel@...r.kernel.org, ralf@...ux-mips.org
Subject: Re: [PATCH] kbuild: make better section mismatch reports on i386 and mips

On Tue, May 15, 2007 at 12:40:35AM +0900, Atsushi Nemoto wrote:
> On i386 and MIPS, warn_sec_mismatch() sometimes fails to show usefull
> symbol name.  This is because empty 'refsym' due to 0 r_addend value.
> This patch is to adjust r_addend value, consulting with
> apply_relocate() routine in kernel code.
> 
> Without this patch:
>   MODPOST vmlinux
> WARNING: init/built-in.o - Section mismatch: reference to .init.text: from .text between 'rest_init' (at offset 0xf4) and 'try_name'
> WARNING: mm/built-in.o - Section mismatch: reference to .init.text: from .text between 'kmem_cache_create' (at offset 0x18a39) and 'cache_reap'
> WARNING: mm/built-in.o - Section mismatch: reference to .init.text: from .text between 'kmem_cache_create' (at offset 0x18a6b) and 'cache_reap'
> 
> With this patch:
>   MODPOST vmlinux
> WARNING: mm/built-in.o - Section mismatch: reference to .init.text:set_up_list3s from .text between 'kmem_cache_create' (at offset 0x18a39) and 'cache_reap'
> WARNING: mm/built-in.o - Section mismatch: reference to .init.text:set_up_list3s from .text between 'kmem_cache_create' (at offset 0x18a6b) and 'cache_reap'
> 
> Now modpost can detect "kernel_init" name (and whitelist it) and show
> "set_up_list3s" name.

Applied.
It seems arm is impacted by the same.
Can you add arm support for the same?

	Sam

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/