On Wednesday 25 May 2011 18:45:37 Mans Rullgard wrote:
> Signed-off-by: Mans Rullgard <[email protected]>
> ---
>  libavutil/arm/intmath.h |    9 +++++++++
>  1 files changed, 9 insertions(+), 0 deletions(-)
> 
> diff --git a/libavutil/arm/intmath.h b/libavutil/arm/intmath.h
> index 5f85bfa..cc3de90 100644
> --- a/libavutil/arm/intmath.h
> +++ b/libavutil/arm/intmath.h
> @@ -74,6 +74,15 @@ static av_always_inline av_const int16_t
> av_clip_int16_arm(int a) return x;
>  }
> 
> +#define av_clip_uintp2 av_clip_uintp2_arm
> +static av_always_inline av_const unsigned av_clip_uintp2_arm(int a, int p)
> +{
> +    unsigned x;
> +    __asm__ ("usat %0, %2, %1" : "=r"(x) : "r"(a), "i"(p));
> +    return x;
> +}
> +
> +
>  #else /* HAVE_ARMV6 */
> 
>  #define FASTDIV FASTDIV

This patch breaks my Android build for ARMv7.  The error message I get is:

libavutil/arm/intmath.h: In function 'av_clip_uintp2_arm':
libavutil/arm/intmath.h:81: warning: asm operand 2 probably doesn't match 
constraints
libavutil/arm/intmath.h:81: error: impossible constraint in 'asm'

This is using the Android NDK cross-compiler with the following ffmpeg 
configure 
flags:
--disable-static --enable-shared --disable-ffmpeg --disable-ffprobe --disable-
ffserver --disable-avdevice --disable-avfilter --enable-cross-compile --
sysroot=/home/gkinsey/src-ext/android-ndk/platforms/android-8/arch-arm --
target-os=linux --cross-prefix=/home/gkinsey/src-ext/android-
ndk/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-
androideabi- --disable-symver --arch=arm-v7a --extra-cflags='-march=armv7-a -
mfloat-abi=softfp' --extra-ldflags='-Wl,--fix-cortex-a8' --enable-debug

As I'm clueless about ARM assembly I've no idea how to fix this.

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