Re: [RFC] any critical patches for a release this weekend?

[Richard PALO]

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Le 23/10/14 21:10, Gary V. Vaughan a écrit :
> I plan to roll a release based off the v2.4.2 tag, incorporating
> fixes for version mismatches against Mac OS Yosemite this weekend -
> in consideration of the fact that there are still known regressions
> in master.
> 
> If there's anything else I should include, or suggestions for a
> better revision to base the release from, please reply ASAP :-)
> 
> Cheers,
> 

I'd like to see two patches committed:

1. the attached SunOS g++ shared library patch, in pkgsrc, has been
tested and running in production here since over half a year, and I
understand Joyent is using it in their local branch.

2 I vote that the '-fstack-protector*' patch be committed as well
(attached). This has been somewhat discussed in the thread labelled
(and notably dating from 02/06/2010):
> Re: Bug: linking shared libraries on Cygwin results in undefined 
> references to __stack_chck_guard for code compiled with
> -fstack-protector
In particular, passing through '-fstack-protector*' is where n°1
really makes a difference.
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libtool.m4.diff
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--- Begin Message --- Subject: Re: Bug: linking shared libraries on Cygwin results in undefined references to __stack_chck_guard for code compiled with -fstack-protector Date: Tue, 1 Jun 2010 22:24:15 -0500

On Sat, 15 May 2010 09:07:49 +0200
Bart Van Assche <address@hidden> wrote:
> This behavior has been observed with libtool version 2.2.6.

Bug confirmed.  When code is compiled with -fstack-protector{,-all},
GCC "emits extra code to check for buffer overflows, such as stack
smashing attacks".  This extra code uses symbols from libssp, and
therefore (at least) Cygwin's GCC specs contain:

*link_ssp:
%{fstack-protector|fstack-protector-all:-lssp_nonshared -lssp}

Therefore, when libtool fails to pass -fstack-protector{,-all} at link
stage, the link fails.

Patch attached.  (Yes, I have a copyright assignment on file.)


Yaakov
Cygwin/X

0001-Fix-linking-with-fstack-protector.patch
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