Re: [Astlinux-devel] x86_64 production

On Nov 28, 2015, at 7:54 PM, Lonnie Abelbeck <li...@lo...> wrote:

> 
> On Nov 28, 2015, at 5:30 PM, Lonnie Abelbeck <li...@lo...> wrote:
> 
>> Update,
>> 
>> ipsec-tools (racoon) segfaults with x86_64
>> 
>> Looking for a solution...
>> 
>> Lonnie
> 
> I narrowed down the problem to the function call "plog", this patch makes IPsec work for x86_64...
> 
> --- ipsec-tools-0.8.2/src/racoon/plog.c.orig	2015-11-28 19:23:45.000000000 -0600
> +++ ipsec-tools-0.8.2/src/racoon/plog.c	2015-11-28 19:24:07.000000000 -0600
> @@ -167,6 +167,7 @@
> void
> _plog(int pri, const char *func, struct sockaddr *sa, const char *fmt, ...)
> {
> +return;
> 	va_list ap;
> 
> 	va_start(ap, fmt);
> 
> --
> But also disables all logging... :-(
> 
> So far I have not been able to isolate this further, possibly others here can beat me to a solution.
> 
> Sadly ipsec-tools does not seem to be actively developed.
> 
> Lonnie

Fixed in r7358
ipsec-tools, build with 'ac_cv_va_copy=yes' so the generic workaround (fails on x86_64) is not used.

The configure script tries to determine if the C-compiler supports the "va_copy()" call, but can't while cross-compiling so it defaults to a generic workaround in that case.  That workaround does not work with x86_64.

The solution is to build with 'ac_cv_va_copy=yes' since we have va_copy().

Lonnie