linux-kernel - Re: [PATCH] Fix the multithread program core thread message error

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]

Message-ID: <20090701005437.GA5856@cr0.nay.redhat.com>
Date:	Wed, 1 Jul 2009 08:54:37 +0800
From:	Amerigo Wang <xiyou.wangcong@...il.com>
To:	Hui Zhu <teawater@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Fix the multithread program core thread message error


Hi, Hui.

On Tue, Jun 30, 2009 at 05:12:31PM +0800, Hui Zhu wrote:
>Fix the multithread program core thread message error.
>The thread message of core file is generated in
>elf_dump_thread_status.  The register values is set by
>elf_core_copy_task_regs in this function.
>static inline int elf_core_copy_task_regs(struct task_struct *t,
>					   elf_gregset_t* elfregs)
>{
>
>	return ELF_CORE_COPY_TASK_REGS(t, elfregs);
>	return 0;
>}
>If a arch doesn't define ELF_CORE_COPY_TASK_REGS, This function will do
>nothing.  Then the core file will not have the register message of
>thread.
>So add elf_core_copy_regs to set regiser values if
>ELF_CORE_COPY_TASK_REGS doesn't define.


You forgot your Signed-off-by line. :)

Hmmm, this patch looks sane for me. But could you please
send us your test program? i.e. how did you test this?

Thank you!


>---
> elfcore.h |    2 ++
> 1 file changed, 2 insertions(+)
>
>diff --git a/include/linux/elfcore.h b/include/linux/elfcore.h
>index 7605c5e..03ec167 100644
>--- a/include/linux/elfcore.h
>+++ b/include/linux/elfcore.h
>@@ -125,6 +125,8 @@ static inline int elf_core_copy_task_regs(struct
>task_struct *t, elf_gregset_t*
> #ifdef ELF_CORE_COPY_TASK_REGS
>
>        return ELF_CORE_COPY_TASK_REGS(t, elfregs);
>+#else
>+       elf_core_copy_regs(elfregs, task_pt_regs(t));
> #endif
>        return 0;
> }
>--
>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/
--
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/