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• Android JNI x264 as a library give relocation R_ARM_MOVW_ABS_NC ; recompile with -fPIC

  25 juin 2014, par MoAdiB

  I’m trying to build x264 library to use it in a shared library that I load using jni on android. I’m able to build everything as an executable without any error but when I build as a shared library I get errors with dynamic relocation of R_ARM_MOVW_ABS_NC :

  [armeabi-v7a] SharedLibrary  : libx264.so
  
  /home/martin/bin/android-ndk/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.8/../../../../arm-linux-androideabi/bin/ld: error: /home/martin/Documents/Sources/ScreenSharingServer/app/src/main/obj/local/armeabi-v7a/objs/x264/common/arm/pixel-a.o: requires unsupported dynamic reloc R_ARM_MOVW_ABS_NC; recompile with -fPIC
  
  /home/martin/bin/android-ndk/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.8/../../../../arm-linux-androideabi/bin/ld: error: /home/martin/Documents/Sources/ScreenSharingServer/app/src/main/obj/local/armeabi-v7a/objs/x264/common/arm/mc-a.o: requires unsupported dynamic reloc R_ARM_MOVW_ABS_NC; recompile with -fPIC
  
  /home/martin/bin/android-ndk/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.8/../../../../arm-linux-androideabi/bin/ld: error: /home/martin/Documents/Sources/ScreenSharingServer/app/src/main/obj/local/armeabi-v7a/objs/x264/common/arm/dct-a.o: requires unsupported dynamic reloc R_ARM_MOVW_ABS_NC; recompile with -fPIC
  
  /home/martin/bin/android-ndk/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.8/../../../../arm-linux-androideabi/bin/ld: error: /home/martin/Documents/Sources/ScreenSharingServer/app/src/main/obj/local/armeabi-v7a/objs/x264/common/arm/quant-a.o: requires unsupported dynamic reloc R_ARM_MOVW_ABS_NC; recompile with -fPIC
  
  /home/martin/bin/android-ndk/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86_64/bin/../lib/gcc/arm-linux-androideabi/4.8/../../../../arm-linux-androideabi/bin/ld: error: /home/martin/Documents/Sources/ScreenSharingServer/app/src/main/obj/local/armeabi-v7a/objs/x264/common/arm/predict-a.o: requires unsupported dynamic reloc R_ARM_MOVW_ABS_NC; recompile with -fPIC
  
  collect2: error: ld returned 1 exit status
  
  make: *** [/home/martin/Documents/Sources/ScreenSharingServer/app/src/main/obj/local/armeabi-v7a/libx264.so] Error 1

  Here is my android.mk :

  LOCAL_PATH := $(my-dir)
  
  
  
  include $(CLEAR_VARS)
  
  
  
  APP_ABI := armeabi armeabi-v7a
  
  TARGET_ARCH_ABI := armeabi-v7a
  
  LOCAL_ARM_NEON := true
  
  ARCH_ARM_HAVE_NEON := true
  
  
  
  AM_CFLAGS := -march=armv7-a -mfpu=neon
  
  AM_CCASFLAGS := -march=armv7-a -mfpu=neon
  
  
  
  LOCAL_SRC_FILES:= common/mc.c common/predict.c common/pixel.c common/macroblock.c \
  
         common/frame.c common/dct.c common/cpu.c common/cabac.c \
  
         common/common.c common/osdep.c common/rectangle.c \
  
         common/set.c common/quant.c common/deblock.c common/vlc.c \
  
         common/mvpred.c common/bitstream.c \
  
         encoder/analyse.c encoder/me.c encoder/ratecontrol.c \
  
         encoder/set.c encoder/macroblock.c encoder/cabac.c \
  
         encoder/cavlc.c encoder/encoder.c encoder/lookahead.c \
  
         common/threadpool.c \
  
         common/arm/mc-c.c common/arm/predict-c.c \
  
         x264.c \
  
         common/arm/cpu-a.S common/arm/pixel-a.S common/arm/mc-a.S \
  
         common/arm/dct-a.S common/arm/quant-a.S common/arm/deblock-a.S \
  
         common/arm/predict-a.S
  
  
  
  LOCAL_SHARED_LIBRARIES := libcutils
  
  LOCAL_STATIC_LIBRARIES := swscale
  
  
  
  LOCAL_C_INCLUDES := $(LOCAL_PATH) $(LOCAL_PATH)/..
  
  LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH) $(LOCAL_PATH)/..
  
  
  
  LOCAL_CFLAGS := -fPIC -O3 -ffast-math -fstrict-aliasing -DANDROID -std=c99
  
  LOCAL_CPPFLAGS := -fPIC
  
  LOCAL_LDFLAGS := -lm
  
  LOCAL_MODULE := x264
  
  
  
  include $(BUILD_SHARED_LIBRARY)

  When I build with V=1 I see -fPIC option in every compilation line...

  I wonder if anybody can help me understand what I do wrong.

  Thanks for your time !

  Martin

• x86 : kill fpel_mmx.c

  19 mai 2014, par Christophe Gisquet

  x86 : kill fpel_mmx.c
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavcodec/x86/Makefile
  • [DH] libavcodec/x86/cavsdsp.c
  • [DH] libavcodec/x86/dsputil_init.c
  • [DH] libavcodec/x86/dsputil_mmx.c
  • [DH] libavcodec/x86/fpel.asm
  • [DH] libavcodec/x86/fpel_mmx.c
  • [DH] libavcodec/x86/h264_qpel.c
  • [DH] libavcodec/x86/hpeldsp_init.c
  • [DH] libavcodec/x86/vc1dsp_mmx.c

• Compiling FFMpeg Error — Need to recompile something with -fPIC, but don't know where the thing is

  1er mai 2014, par nectaris

  I’m trying to compile FFMpeg with make after running ./configure --enable-shared --enable-pic, but am getting the following error, which stops completion of the compilation :

  /usr/bin/ld: libavutil/intfloat_readwrite.o: relocation R_X86_64_PC32 against undefined symbol ldexp@@GLIBC_2.2.5' can not be used when making a shared object; recompile with -fPIC
/usr/bin/ld: final link failed: Bad value

  I know I need to recompile something with -fPIC as indicated, but I’m not sure exactly what needs to be recompiled. I know that -fPIC is an option of GCC, but again, I just need a shove in the right direction as to what actual files need to be recompiled. Or should I modify the Makefile ?

  I apologize if the answer’s right in front of me or something — this is rather new territory.