From: rusty@rustcorp.com.au (Rusty Russell)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC PATCH] kernel/kallsyms.c: only show legal kernel symbol
Date: Fri, 25 Oct 2013 16:20:10 +1030 [thread overview]
Message-ID: <87y55h7vcd.fsf@rustcorp.com.au> (raw)
In-Reply-To: <CACVXFVO86u0h0V-1_DCkO5HNyUp2i_UsjPrVWDb-ZBtmwVk28A@mail.gmail.com>
Ming Lei <tom.leiming@gmail.com> writes:
> On Fri, Oct 25, 2013 at 7:08 AM, Rusty Russell <rusty@rustcorp.com.au> wrote:
>>
>> Sorry, I was imprecise. I was referring to the kernel's kallsyms
>> tables produced by scripts/kallsyms.c. This patch left them in the
>> the kallsyms tables and filtered them out from /proc/kallsyms.
>
> Yes, but it isn't easy to do it by script/kallsyms.c , and IMO, it should
> be correct to hide them for user space but keep them in kallsyms table.
So they'll appear in backtraces? And turn up randomly for other symbol
dereferences?
I don't think you really want this!
>> It's weird that cpu_v7_suspend_size appeared above, since kallsyms
>> should filter out 'A' symbols already.
>
> Sorry, the 'A' symbol is a mistake, but the others do exist in /proc/kallsyms.
Ah, OK.
Cheers,
Rusty.
WARNING: multiple messages have this Message-ID (diff)
From: Rusty Russell <rusty@rustcorp.com.au>
To: Ming Lei <tom.leiming@gmail.com>
Cc: Russell King - ARM Linux <linux@arm.linux.org.uk>,
Andrew Morton <akpm@linux-foundation.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Chen Gang <gang.chen@asianux.com>,
linux-arm-kernel <linux-arm-kernel@lists.infradead.org>
Subject: Re: [RFC PATCH] kernel/kallsyms.c: only show legal kernel symbol
Date: Fri, 25 Oct 2013 16:20:10 +1030 [thread overview]
Message-ID: <87y55h7vcd.fsf@rustcorp.com.au> (raw)
In-Reply-To: <CACVXFVO86u0h0V-1_DCkO5HNyUp2i_UsjPrVWDb-ZBtmwVk28A@mail.gmail.com>
Ming Lei <tom.leiming@gmail.com> writes:
> On Fri, Oct 25, 2013 at 7:08 AM, Rusty Russell <rusty@rustcorp.com.au> wrote:
>>
>> Sorry, I was imprecise. I was referring to the kernel's kallsyms
>> tables produced by scripts/kallsyms.c. This patch left them in the
>> the kallsyms tables and filtered them out from /proc/kallsyms.
>
> Yes, but it isn't easy to do it by script/kallsyms.c , and IMO, it should
> be correct to hide them for user space but keep them in kallsyms table.
So they'll appear in backtraces? And turn up randomly for other symbol
dereferences?
I don't think you really want this!
>> It's weird that cpu_v7_suspend_size appeared above, since kallsyms
>> should filter out 'A' symbols already.
>
> Sorry, the 'A' symbol is a mistake, but the others do exist in /proc/kallsyms.
Ah, OK.
Cheers,
Rusty.
next prev parent reply other threads:[~2013-10-25 5:50 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-23 3:18 [RFC PATCH] kernel/kallsyms.c: only show legal kernel symbol Ming Lei
2013-10-23 3:18 ` Ming Lei
2013-10-24 1:21 ` Rusty Russell
2013-10-24 1:21 ` Rusty Russell
2013-10-24 5:42 ` Ming Lei
2013-10-24 5:42 ` Ming Lei
2013-10-24 8:45 ` Russell King - ARM Linux
2013-10-24 8:45 ` Russell King - ARM Linux
2013-10-24 9:10 ` Ming Lei
2013-10-24 9:10 ` Ming Lei
2013-10-24 23:08 ` Rusty Russell
2013-10-24 23:08 ` Rusty Russell
2013-10-25 1:29 ` Ming Lei
2013-10-25 1:29 ` Ming Lei
2013-10-25 5:50 ` Rusty Russell [this message]
2013-10-25 5:50 ` Rusty Russell
2013-10-25 7:01 ` Ming Lei
2013-10-25 7:01 ` Ming Lei
2013-10-25 11:58 ` Rusty Russell
2013-10-25 11:58 ` Rusty Russell
2013-10-26 12:31 ` Ming Lei
2013-10-26 12:31 ` Ming Lei
2013-10-28 3:14 ` Rusty Russell
2013-10-28 3:14 ` Rusty Russell
2013-10-28 5:23 ` Ming Lei
2013-10-28 5:23 ` Ming Lei
2013-10-28 5:50 ` Rusty Russell
2013-10-28 5:50 ` Rusty Russell
2013-10-30 23:09 ` Russell King - ARM Linux
2013-10-30 23:09 ` Russell King - ARM Linux
2013-10-31 3:14 ` Rusty Russell
2013-10-31 3:14 ` Rusty Russell
2013-10-31 4:55 ` Ming Lei
2013-10-31 4:55 ` Ming Lei
2013-11-01 2:28 ` Rusty Russell
2013-11-01 2:28 ` Rusty Russell
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87y55h7vcd.fsf@rustcorp.com.au \
--to=rusty@rustcorp.com.au \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.