[oe] [PATCH] libvpx: force arm mode to be able to link with ffmpeg where arm mode already is forced

[Martin Jansa]

On Thu, Jan 13, 2011 at 07:12:50PM -0800, Khem Raj wrote:
> On 1/12/2011 11:31 PM, Martin Jansa wrote:
> > On Wed, Jan 12, 2011 at 10:28:10AM -0800, Khem Raj wrote:
> >> On 1/12/2011 3:48 AM, Martin Jansa wrote:
> >>> Signed-off-by: Martin Jansa<Martin.Jansa at gmail.com>
> >>
> >> hmmm what issues do u see if you build it with thumb mode.
> >
> > +# ffmpeg links with this and fails
> > +# sysroots/armv4t-oe-linux-gnueabi/usr/lib/libvpx.a(vpx_encoder.c.o)(.text+0xc4): unresolvable R_ARM_THM_CALL relocation against symbol `memcpy@@GLIBC_2.4'
> >
> > and full log is here
> > http://tinderbox.openembedded.org/packages/1398033/
> 
> Its not clear in the logs but is libvpx using -fPIE compiler option ? if 
> yes then you should remove it and then it will work.

only -fPIC and even with added -fno-PIE it still fails here (only with
binutils-2.21, haven't seen it with 2.20)

> >
> >>> ---
> >>>    recipes/webm/libvpx.inc |    6 +++++-
> >>>    1 files changed, 5 insertions(+), 1 deletions(-)
> >>>
> >>> diff --git a/recipes/webm/libvpx.inc b/recipes/webm/libvpx.inc
> >>> index 9913d5b..9d40945 100644
> >>> --- a/recipes/webm/libvpx.inc
> >>> +++ b/recipes/webm/libvpx.inc
> >>> @@ -1,11 +1,15 @@
> >>>    DESCRIPTION = "vpx Multi-Format Codec SDK"
> >>>    LICENSE = "BSD"
> >>>
> >>> -INC_PR = "r5"
> >>> +INC_PR = "r6"
> >>>
> >>>    SRC_URI = "git://review.webmproject.org/libvpx.git;protocol=git;tag=v${PV}"
> >>>    S = "${WORKDIR}/git"
> >>>
> >>> +# ffmpeg links with this and fails
> >>> +# sysroots/armv4t-oe-linux-gnueabi/usr/lib/libvpx.a(vpx_encoder.c.o)(.text+0xc4): unresolvable R_ARM_THM_CALL relocation against symbol `memcpy@@GLIBC_2.4'
> >>> +ARM_INSTRUCTION_SET = "arm"
> >>> +
> >>>    CFLAGS += "-fPIC"
> >>>
> >>>    export CC
> >>
> >>
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> 
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-- 
Martin 'JaMa' Jansa     jabber: Martin.Jansa at gmail.com
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