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authorGravatar Waldemar Brodkorb <wbx@openadk.org>2016-08-22 00:14:22 +0200
committerGravatar Thomas Petazzoni <thomas.petazzoni@free-electrons.com>2016-08-22 17:20:18 +0200
commit750233df5055b4c0af70a82265e9da0224fd0011 (patch)
tree2dccb7e8cc257d9619726f6ad74989db2e043624
parent1adaf87c1c4e0531694a3a6f690d0644f729bf8d (diff)
downloadbuildroot-750233df5055b4c0af70a82265e9da0224fd0011.tar.gz
buildroot-750233df5055b4c0af70a82265e9da0224fd0011.tar.bz2
ffmpeg: fix bfin build
A gcc bug is triggered when Os/O2/O3 is used to compile the function. Just force O1 for the problematic function for Blackfin. See gcc bug report: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77311 Fixes: http://autobuild.buildroot.net/results/1118d568959006b7f973761884fd3f4b63be19b1/ Signed-off-by: Waldemar Brodkorb <wbx@openadk.org> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
-rw-r--r--package/ffmpeg/0013-bfin-disable-optimization.patch26
1 files changed, 26 insertions, 0 deletions
diff --git a/package/ffmpeg/0013-bfin-disable-optimization.patch b/package/ffmpeg/0013-bfin-disable-optimization.patch
new file mode 100644
index 0000000000..1d8a4f015d
--- /dev/null
+++ b/package/ffmpeg/0013-bfin-disable-optimization.patch
@@ -0,0 +1,26 @@
+Fix bfin compile error
+
+See gcc bug report:
+https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77311
+
+Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
+
+diff -Nur ffmpeg-2.8.7.orig/libavcodec/hevcdsp_template.c ffmpeg-2.8.7/libavcodec/hevcdsp_template.c
+--- ffmpeg-2.8.7.orig/libavcodec/hevcdsp_template.c 2016-03-29 04:25:16.000000000 +0200
++++ ffmpeg-2.8.7/libavcodec/hevcdsp_template.c 2016-08-12 21:32:36.728178969 +0200
+@@ -1517,7 +1517,14 @@
+ #define TQ2 pix[2 * xstride + 3 * ystride]
+ #define TQ3 pix[3 * xstride + 3 * ystride]
+
+-static void FUNC(hevc_loop_filter_luma)(uint8_t *_pix,
++// Blackfin gcc 6.1.x fails with
++// unable to find a register to spill in class CCREGS
++#if defined(__bfin__)
++#define disable_opt __attribute__ ((optimize("O1")))
++#else
++#define disable_opt
++#endif
++static void disable_opt FUNC(hevc_loop_filter_luma)(uint8_t *_pix,
+ ptrdiff_t _xstride, ptrdiff_t _ystride,
+ int beta, int *_tc,
+ uint8_t *_no_p, uint8_t *_no_q)