diff options
Diffstat (limited to 'poky/meta/recipes-multimedia/pulseaudio/pulseaudio/0001-remap_neon-use-register-r12-instead-of-r7.patch')
-rw-r--r-- | poky/meta/recipes-multimedia/pulseaudio/pulseaudio/0001-remap_neon-use-register-r12-instead-of-r7.patch | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/poky/meta/recipes-multimedia/pulseaudio/pulseaudio/0001-remap_neon-use-register-r12-instead-of-r7.patch b/poky/meta/recipes-multimedia/pulseaudio/pulseaudio/0001-remap_neon-use-register-r12-instead-of-r7.patch new file mode 100644 index 000000000..aaa162f9b --- /dev/null +++ b/poky/meta/recipes-multimedia/pulseaudio/pulseaudio/0001-remap_neon-use-register-r12-instead-of-r7.patch @@ -0,0 +1,48 @@ +From 4a1668f341f0228904105f77fe5871b9d59b2663 Mon Sep 17 00:00:00 2001 +From: Tanu Kaskinen <tanuk@iki.fi> +Date: Mon, 13 Jul 2020 12:42:14 +0300 +Subject: [PATCH] remap_neon: use register r12 instead of r7 + +When the Thumb instructions set is used and frame pointers are enabled +(-fno-omit-frame-pointer), r7 can't be used, because it's used for the +frame pointer. Trying to use r7 caused the compilation to fail. + +Thanks to Andre McCurdy for suggesting[1] this fix, all I had to do was to +test that it works. The code builds now, and cpu-remap-test also +succeeds. + +[1] https://lists.openembedded.org/g/openembedded-core/message/136786 + +Upstream-Status: Submitted [https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/324] + +Signed-off-by: Tanu Kaskinen <tanuk@iki.fi> +--- + src/pulsecore/remap_neon.c | 10 +++++++--- + 1 file changed, 7 insertions(+), 3 deletions(-) + +diff --git a/src/pulsecore/remap_neon.c b/src/pulsecore/remap_neon.c +index ca3b95b48..6f71345f8 100644 +--- a/src/pulsecore/remap_neon.c ++++ b/src/pulsecore/remap_neon.c +@@ -52,11 +52,15 @@ static void remap_mono_to_stereo_float32ne_generic_arm(pa_remap_t *m, float *dst + __asm__ __volatile__ ( + "ldm %[src]!, {r4,r6} \n\t" + "mov r5, r4 \n\t" +- "mov r7, r6 \n\t" +- "stm %[dst]!, {r4-r7} \n\t" ++ ++ /* We use r12 instead of r7 here, because r7 is reserved for the ++ * frame pointer when using Thumb. */ ++ "mov r12, r6 \n\t" ++ ++ "stm %[dst]!, {r4-r6,r12} \n\t" + : [dst] "+r" (dst), [src] "+r" (src) /* output operands */ + : /* input operands */ +- : "memory", "r4", "r5", "r6", "r7" /* clobber list */ ++ : "memory", "r4", "r5", "r6", "r12" /* clobber list */ + ); + } + +-- +2.20.1 + |