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| author | Janne Grunau <janne-libav@jannau.net> | 2014-03-05 12:44:57 +0100 |
|---|---|---|
| committer | Janne Grunau <janne-libav@jannau.net> | 2014-03-05 14:30:57 +0100 |
| commit | cbddee1cca0ebd01e8c5aa694d31228eb4de4b41 (patch) | |
| tree | 95e3e73f0d5ccb6e54ed587e6fb547080bf71371 /libavutil/arm/asm.S | |
| parent | 3741aa37c2a0d0717faff74a5c4cc357d16f6d1d (diff) | |
| download | ffmpeg-cbddee1cca0ebd01e8c5aa694d31228eb4de4b41.tar.gz | |
arm: hpeldsp: prevent overreads in armv6 asm
Based on a patch by Russel King <rmk+libav@arm.linux.org.uk>
Bug-Id: 646
CC: libav-stable@libav.org
Diffstat (limited to 'libavutil/arm/asm.S')
| -rw-r--r-- | libavutil/arm/asm.S | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/libavutil/arm/asm.S b/libavutil/arm/asm.S index 45fdf55522..5884e172f3 100644 --- a/libavutil/arm/asm.S +++ b/libavutil/arm/asm.S @@ -216,6 +216,13 @@ T ldr \rt, [\rn] T add \rn, \rn, \rm .endm +.macro ldrc_pre cc, rt, rn, rm:vararg +A ldr\cc \rt, [\rn, \rm]! +T itt \cc +T add\cc \rn, \rn, \rm +T ldr\cc \rt, [\rn] +.endm + .macro ldrd_reg rt, rt2, rn, rm A ldrd \rt, \rt2, [\rn, \rm] T add \rt, \rn, \rm |