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authorGravatar Thomas Petazzoni <thomas.petazzoni@free-electrons.com>2017-03-23 00:04:56 +0100
committerGravatar Thomas Petazzoni <thomas.petazzoni@free-electrons.com>2017-04-04 11:45:55 +0200
commitd2b73875c3b8a6ec518c1424eaf92c1257fa40aa (patch)
treecada6306eeb88e435a76daf3886fc671bb4d569b /package/gstreamer
parent1d3a136fe592e47d86e2772a426a01188c1972a2 (diff)
downloadbuildroot-d2b73875c3b8a6ec518c1424eaf92c1257fa40aa.tar.gz
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gst-ffmpeg: work-around bogus configure logic on SPARC
The libav version built into the gst-ffmpeg code produces a bogus binary on SPARC, which causes the following error of the check-bin-arch script: ERROR: architecture for ./usr/lib/gstreamer-0.10/libgstffmpeg.so is Sparc v8+, should be Sparc ERROR: architecture for ./usr/lib/gstreamer-0.10/libgstpostproc.so is Sparc v8+, should be Sparc ERROR: architecture for ./usr/lib/gstreamer-0.10/libgstffmpegscale.so is Sparc v8+, should be Sparc The problem is the following bit of code in gst-lib/ext/libav/configure: elif enabled sparc; then enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc && add_cflags -mcpu=ultrasparc -mtune=ultrasparc I.e, it checks if the architecture supports the pdist instruction... but forces -mcpu to ultrasparc while doing so. So it's like "let's see if this Ultrasparc instruction exists when I force the compiler to think I'm using Ultrasparc", which is non-sensical. This has been fixed later on in libav upstream: https://git.libav.org/?p=libav.git;a=commit;h=6aa93689abe8c095cec9fa828c2dee3131008995 However, this commit cannot be backported as-is since the shell function check_inline_asm did not exist in the old libav version bundled in gst-ffmpeg. Therefore, we take the simpler route of disabling the VIS optimizations on SPARCv8 and Leon3. Fixes: http://autobuild.buildroot.net/results/e82d179c3d4f92ad7423693a4b1d42379a3f5411/ Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Diffstat (limited to 'package/gstreamer')
-rw-r--r--package/gstreamer/gst-ffmpeg/gst-ffmpeg.mk6
1 files changed, 6 insertions, 0 deletions
diff --git a/package/gstreamer/gst-ffmpeg/gst-ffmpeg.mk b/package/gstreamer/gst-ffmpeg/gst-ffmpeg.mk
index 22911cda68..6f41efb0a5 100644
--- a/package/gstreamer/gst-ffmpeg/gst-ffmpeg.mk
+++ b/package/gstreamer/gst-ffmpeg/gst-ffmpeg.mk
@@ -80,6 +80,12 @@ else
GST_FFMPEG_CONF_EXTRA_OPTS += --disable-altivec
endif
+# libav configure script misdetects the VIS optimizations as being
+# available, so forcefully disable them.
+ifeq ($(BR2_sparc_v8)$(BR2_sparc_leon3),y)
+GST_FFMPEG_CONF_EXTRA_OPTS += --disable-vis
+endif
+
ifeq ($(BR2_STATIC_LIBS),)
GST_FFMPEG_CONF_EXTRA_OPTS += --enable-pic
endif