linux-kernel - Re: [PATCH 1/9] x86/entry/head/32: use local labels

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, 20 Sep 2016 17:57:16 -0700
From:   Andy Lutomirski <luto@...capital.net>
To:     Josh Poimboeuf <jpoimboe@...hat.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "H . Peter Anvin" <hpa@...or.com>,
        Nilay Vaish <nilayvaish@...il.com>,
        Ingo Molnar <mingo@...nel.org>,
        Brian Gerst <brgerst@...il.com>, X86 ML <x86@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH 1/9] x86/entry/head/32: use local labels

On Sep 20, 2016 10:03 AM, "Josh Poimboeuf" <jpoimboe@...hat.com> wrote:
>
> Add the local label prefix to all non-function named labels in head_32.S
> and entry_32.S.  In addition to decluttering the symbol table, it also
> will help stack traces to be more sensible.  For example, the last
> reported function in the idle task stack trace will be startup_32_smp()
> instead of is486().
>

I think that restore_all, at least, should stay.  It's a common tail
for lots of functions.  I haven't checked this patch for other cases
where the new label is worse than the old for debugging.

--Andy