lkml.org 
[lkml]   [2019]   [Sep]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: kexec broken with STACKLEAK enabled
On Sun, Sep 22, 2019 at 10:32 AM Arvind Sankar <nivedita@alum.mit.edu> wrote:
>
> Hi, since commit b059f801a937 (x86/purgatory: Use CFLAGS_REMOVE rather
> than reset KBUILD_CFLAGS) kexec is broken if GCC_PLUGIN_STACKLEAK is
> enabled, as the purgatory contains undefined references to
> stackleak_track_stack.
>
> Attempting to load a kexec kernel results in an error:
>
> kexec: Undefined symbol: stackleak_track_stack
> kexec-bzImage64: Loading purgatory failed
>
> Adding $(DISABLE_STACKLEAK_PLUGIN) to PURGATORY_CFLAGS in
> arch/x86/purgatory/Makefile fixes this.

Hi Arvind,
Thanks for the report. That sounds like a straightforward fix. Would
you like to send a patch for that? I'd be happy to help review it.

>
> Not sure if that's the best fix or if other architectures also require a
> similar one.

The commit you reference should be x86 only.
--
Thanks,
~Nick Desaulniers

\
 
 \ /
  Last update: 2019-09-23 18:15    [W:0.682 / U:0.032 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site