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Re: [PATCH] hppa: Fix setting of __libc_stack_end

From: Mike Frysinger <vapier at gentoo dot org>
To: John David Anglin <dave dot anglin at bell dot net>
Cc: GNU C Library <libc-alpha at sourceware dot org>, Helge Deller <deller at gmx dot de>, Carlos O'Donell <carlos at redhat dot com>, Aurelien Jarno <aurelien at aurel32 dot net>
Date: Wed, 15 Mar 2017 16:44:53 -0400
Subject: Re: [PATCH] hppa: Fix setting of __libc_stack_end
Authentication-results: sourceware.org; auth=none
References: <44203801-31B0-4C01-A336-506821B5747C@bell.net>

On 20 Feb 2017 20:31, John David Anglin wrote:
> The binutils package was recently changed to fix -z relro support on hppa.  See ld/21000 for details:
> https://sourceware.org/bugzilla/show_bug.cgi?id=21000
> 
> This exposed a problem with the _dl_start_user function in the RTLD_START define.  We need to
> set __libc_stack_end before it is made read only.  For this, we need to define DL_STACK_END.
> The offset of 0x160 gives the same stack end as the code in _dl_start_user.
> 
> A build log with the attached patch is here:
> https://buildd.debian.org/status/fetch.php?pkg=glibc&arch=hppa&ver=2.24-9&stamp=1487639205&raw=0
> 
> I don't have write permission, so somebody should commit this for me. Thanks.

pushed now.  should i cherry pick back to 2.25 too ?
-mike

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