From mboxrd@z Thu Jan 1 00:00:00 1970 From: Waldemar Brodkorb Date: Fri, 12 Aug 2016 22:41:10 +0200 Subject: [Buildroot] [PATCH] ffmpeg: fix bfin compile Message-ID: <20160812204110.GA2187@waldemar-brodkorb.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net A gcc bug is triggered when Os/O2/O3 is used to compile the function. Just force O1 for the problematic function for Blackfin. Fixes: http://autobuild.buildroot.net/results/1118d568959006b7f973761884fd3f4b63be19b1/ Signed-off-by: Waldemar Brodkorb --- package/ffmpeg/0013-bfin-disable-optimization.patch | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 package/ffmpeg/0013-bfin-disable-optimization.patch diff --git a/package/ffmpeg/0013-bfin-disable-optimization.patch b/package/ffmpeg/0013-bfin-disable-optimization.patch new file mode 100644 index 0000000..38630d9 --- /dev/null +++ b/package/ffmpeg/0013-bfin-disable-optimization.patch @@ -0,0 +1,19 @@ +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) -- 2.1.4