[FFmpeg-cvslog] ARM: 4-byte align start of all asm functions
Mans Rullgard
git at videolan.org
Sat Jan 14 02:53:46 CET 2012
ffmpeg | branch: master | Mans Rullgard <mans at mansr.com> | Fri Jan 13 18:56:36 2012 +0000| [5c5e1ea3cdccc5af0b2d3de15a9c3739c30ec88c] | committer: Mans Rullgard
ARM: 4-byte align start of all asm functions
Due to apprent bugs in the GNU assembler and/or linker, relocations
can be incorrectly processed if the alignment of a Thumb instruction
is changed in the output file compared to the input object.
This fixes crashes in h264 decoding with Thumb enabled. No effect in
ARM mode since everything is 4-byte aligned there.
Signed-off-by: Mans Rullgard <mans at mansr.com>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=5c5e1ea3cdccc5af0b2d3de15a9c3739c30ec88c
---
libavcodec/arm/asm.S | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/libavcodec/arm/asm.S b/libavcodec/arm/asm.S
index aaf497e..3b495a2 100644
--- a/libavcodec/arm/asm.S
+++ b/libavcodec/arm/asm.S
@@ -68,6 +68,7 @@ ELF .size \name, . - \name
.purgem endfunc
.endm
.text
+ .align 2
.if \export
.global EXTERN_ASM\name
EXTERN_ASM\name:
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