[FFmpeg-devel] [PATCH] Tickets #3540 : build error with PIC and stack-check options

[Michael Niedermayer]

On Wed, Apr 09, 2014 at 12:18:32PM +0200, Anthoine Bourgeois wrote:
> Hi,
> 
> The function dirac_get_arith_bit in libavcodec/dirac_arith.h can't be
> built with PIC and check-stack because the asm code needs 6 registers
> and PIC and check-stack options take 1 each and x86 is quite limited
> in this area.
> The patch attached adds a condition on HAVE_6REGS. HAVE_6REGS is false
> in this configuration and then the C code is used instead.
> I tested to build the version 1.2.6 but git master is affected too.
> 
> Regards,
> Anthoine

>  dirac_arith.h |    3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 93c7ef21ff182e88f2fbcf5645c763ff6d86bfe7  ffmpeg-1.2.6-dirac_arith_h_6regs.patch
> diff -Npur ffmpeg-1.2.6.orig/libavcodec/dirac_arith.h ffmpeg-1.2.6/libavcodec/dirac_arith.h
> --- ffmpeg-1.2.6.orig/libavcodec/dirac_arith.h	2014-04-08 15:55:07.666501932 +0200
> +++ ffmpeg-1.2.6/libavcodec/dirac_arith.h	2014-04-08 16:08:04.404569134 +0200

applied

thanks

[...]

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