On Friday 23 March 2012 21:22:33 Wagner Patriota wrote:
> Has anybody done it yet?
Yes, haven't tested with the latest SDK yet but for 5.0 and below I have it
working.
> I am using the following commands:
>
<snip commands>
>
> But when I try to link my application with the libraries this above
> script generates, I get the following:
>
> "ld: warning: ignoring file
> /Users/Wagner/ffmpeg/ffmpeg/armv7/libavcodec.a, file was built for
> archive which is not the architecture being linked (armv7)"
Configure flags that I use (minus the disable/enable decoders and stuff I have
which aren't relevant)
configure --enable-static --disable-shared --enable-pic --
sysroot="/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.0.sdk"
--extra-ldflags="-arch armv7 -isysroot
/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS5.0.sdk -
miphoneos-version-min=4.0" --enable-cross-compile --arch=arm --target-
os=darwin --
cc="/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc" --
cpu=cortex-a8 --extra-cflags="-arch armv7 -mfpu=neon -miphoneos-version-
min=4.0" --disable-debug --enable-small
I also have a small patch to work around Apple gcc brokenness, which I've
attached.
--
Gavin Kinsey
AD Holdings Plc
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diff --git a/libavutil/arm/intmath.h b/libavutil/arm/intmath.h
index 52af66e..b767588 100644
--- a/libavutil/arm/intmath.h
+++ b/libavutil/arm/intmath.h
@@ -75,6 +75,8 @@ static av_always_inline av_const int16_t av_clip_int16_arm(int a)
return x;
}
+#if AV_GCC_VERSION_AT_LEAST(4,5)
+
#define av_clip_uintp2 av_clip_uintp2_arm
static av_always_inline av_const unsigned av_clip_uintp2_arm(int a, int p)
{
@@ -83,6 +85,8 @@ static av_always_inline av_const unsigned av_clip_uintp2_arm(int a, int p)
return x;
}
+#endif /* AV_GCC_VERSION_AT_LEAST(4,5) */
+
#else /* HAVE_ARMV6 */
@@ -97,12 +101,16 @@ static av_always_inline av_const int FASTDIV(int a, int b)
#endif /* HAVE_ARMV6 */
+#if AV_GCC_VERSION_AT_LEAST(4,3)
+
#define av_clipl_int32 av_clipl_int32_arm
static av_always_inline av_const int32_t av_clipl_int32_arm(int64_t a)
{
int x, y;
__asm__ ("adds %1, %R2, %Q2, lsr #31 \n\t"
+#if CONFIG_THUMB
"itet ne \n\t"
+#endif
"mvnne %1, #1<<31 \n\t"
"moveq %0, %Q2 \n\t"
"eorne %0, %1, %R2, asr #31 \n\t"
@@ -110,6 +118,8 @@ static av_always_inline av_const int32_t av_clipl_int32_arm(int64_t a)
return x;
}
+#endif /* AV_GCC_VERSION_AT_LEAST(4,3) */
+
#endif /* HAVE_INLINE_ASM */
#endif /* AVUTIL_ARM_INTMATH_H */
diff --git a/libavutil/arm/intreadwrite.h b/libavutil/arm/intreadwrite.h
index 0292aab..61aa4a5 100644
--- a/libavutil/arm/intreadwrite.h
+++ b/libavutil/arm/intreadwrite.h
@@ -52,6 +52,9 @@ static av_always_inline void AV_WN32(void *p, uint32_t v)
__asm__ ("str %1, %0" : "=m"(*(uint32_t *)p) : "r"(v));
}
+
+#if AV_GCC_VERSION_AT_LEAST(4,4)
+
#define AV_RN64 AV_RN64
static av_always_inline uint64_t AV_RN64(const void *p)
{
@@ -72,6 +75,8 @@ static av_always_inline void AV_WN64(void *p, uint64_t v)
: "r"(v));
}
+#endif /* AV_GCC_VERSION_AT_LEAST(4,4) */
+
#endif /* HAVE_INLINE_ASM */
#endif /* AVUTIL_ARM_INTREADWRITE_H */
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