#1479: --disable-optimisations causes build to fail against android ndk --------------------------------------+---------------------------------- Reporter: notzed | Type: defect Status: new | Priority: normal Component: build system | Version: 0.11.1 Keywords: | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | --------------------------------------+---------------------------------- When compiling with the android ndk, using --disable-optimizations causes the build to fail immediately: /usr/local/android-ndk-r7c/toolchains/arm-linux- androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-gcc -I. -I/home/notzed/svn/jjmpeg-0.11/jjmpeg-core/jni/ffmpeg-0.11/ -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -DPIC -DHAVE_AV_CONFIG_H -I/usr/local/android-ndk-r7c/platforms/android-8/arch-arm//usr/include -mfloat-abi=softfp -mfpu=neon -marm -march=armv7-a --sysroot=/usr/local /android-ndk-r7c/platforms/android-8/arch-arm/ -std=c99 -fPIC -marm -g -Wdeclaration-after-statement -Wall -Wno-parentheses -Wno-switch -Wno- format-zero-length -Wdisabled-optimization -Wpointer-arith -Wredundant- decls -Wno-pointer-sign -Wwrite-strings -Wtype-limits -Wundef -Wmissing- prototypes -Wno-pointer-to-int-cast -Wstrict-prototypes -fno-math-errno -fno-signed-zeros -fno-tree-vectorize -Werror=implicit-function- declaration -Werror=missing-prototypes -MMD -MF libavformat/4xm.d -MT libavformat/4xm.o -c -o libavformat/4xm.o /home/notzed/svn/jjmpeg-0.11 /jjmpeg-core/jni/ffmpeg-0.11/libavformat/4xm.c In file included from /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libavutil/intmath.h:36, from /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libavutil/common.h:102, from /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libavutil/avutil.h:327, from /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libavutil/samplefmt.h:22, from /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libavcodec/avcodec.h:30, from /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libavformat/avformat.h:197, from /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libavformat/4xm.c:32: /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libavutil/arm/intmath.h: In function 'av_clip_uintp2_arm': /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libavutil/arm/intmath.h:82: warning: asm operand 2 probably doesn't match constraints /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libavutil/arm/intmath.h:82: error: impossible constraint in 'asm' make[1]: *** [libavformat/4xm.o] Error 1 This is caused by this instruction/function: #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; } usat's second argument must be an immediate value, so unless this function is inlined it cannot work. Adding --enable-small allows the build to continue further as it forces inlining (rather counter-intuitively), but it then fails at: /usr/local/android-ndk-r7c/toolchains/arm-linux- androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-gcc -I. -I/home/notzed/svn/jjmpeg-0.11/jjmpeg-core/jni/ffmpeg-0.11/ -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -DPIC -DHAVE_AV_CONFIG_H -I/usr/local/android-ndk-r7c/platforms/android-8/arch-arm//usr/include -mfloat-abi=softfp -mfpu=neon -marm -march=armv7-a --sysroot=/usr/local /android-ndk-r7c/platforms/android-8/arch-arm/ -std=c99 -fPIC -marm -g -Wdeclaration-after-statement -Wall -Wno-parentheses -Wno-switch -Wno- format-zero-length -Wdisabled-optimization -Wpointer-arith -Wredundant- decls -Wno-pointer-sign -Wwrite-strings -Wtype-limits -Wundef -Wmissing- prototypes -Wno-pointer-to-int-cast -Wstrict-prototypes -Os -fno-math- errno -fno-signed-zeros -fno-tree-vectorize -Werror=implicit-function- declaration -Werror=missing-prototypes -MMD -MF libswscale/output.d -MT libswscale/output.o -c -o libswscale/output.o /home/notzed/svn/jjmpeg-0.11 /jjmpeg-core/jni/ffmpeg-0.11/libswscale/output.c In file included from /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libavutil/intmath.h:36, from /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libavutil/common.h:102, from /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libavutil/avutil.h:327, from /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libswscale/output.c:27: /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libavutil/arm/intmath.h: In function 'yuv2plane1_10_c_template': /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libavutil/arm/intmath.h:82: warning: asm operand 2 probably doesn't match constraints /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libavutil/arm/intmath.h:82: warning: asm operand 2 probably doesn't match constraints /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libavutil/arm/intmath.h:82: error: impossible constraint in 'asm' /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libavutil/arm/intmath.h:82: error: impossible constraint in 'asm' In file included from /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libavutil/intmath.h:36, from /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libavutil/common.h:102, from /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libavutil/avutil.h:327, from /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libswscale/output.c:27: /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libavutil/arm/intmath.h: In function 'yuv2planeX_10_c_template': /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libavutil/arm/intmath.h:82: warning: asm operand 2 probably doesn't match constraints /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libavutil/arm/intmath.h:82: warning: asm operand 2 probably doesn't match constraints /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libswscale/output.c: In function 'yuv2rgb_X_c_template': /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libswscale/output.c:994: warning: 'A2' may be used uninitialized in this function /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libswscale/output.c:994: warning: 'A1' may be used uninitialized in this function /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libswscale/output.c: In function 'yuv2rgb_full_X_c_template': /home/notzed/svn/jjmpeg-0.11/jjmpeg- core/jni/ffmpeg-0.11/libswscale/output.c:1227: warning: 'A' may be used uninitialized in this function make[1]: *** [libswscale/output.o] Error 1 ---------------------- gcc is version 4.4.3 from the android ndk v7c. FFmpeg version 0.11.1 (I will try against the git's head once it's finished checking out) configuration, with --enable small on: FFMPEG_CONFIGURATION "--prefix=/home/notzed/svn/jjmpeg-0.11/jjmpeg- android/jni/build/armeabi-v7a --cross-prefix=/usr/local/android-ndk- r7c/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm- linux-androideabi- --enable-cross-compile --target-os=linux --extra- cflags='-I/usr/local/android-ndk-r7c/platforms/android-8/arch- arm//usr/include -mfloat-abi=softfp -mfpu=neon -marm -march=armv7-a --sysroot=/usr/local/android-ndk-r7c/platforms/android-8/arch-arm/' --extra-ldflags='-L/usr/local/android-ndk-r7c/platforms/android-8/arch- arm//usr/lib --sysroot=/usr/local/android-ndk-r7c/platforms/android-8 /arch-arm/' --arch=arm --disable-stripping --enable-debug --disable- optimizations --enable-small --disable-shared --enable-static --disable- symver --enable-pthreads --enable-gpl --enable-version3 --disable-doc --disable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffserver --disable-avdevice --disable-avfilter --disable-postproc" -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1479> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker