HI all, I am trying to compile libmad-0.15.1b on Wandboard with Freescale's i.MX6 Solo processor (ARM Cortex-A9) running Ubuntu Precise LTS.

First I had to comment out "-fforce-mem" from configure, as suggested here : http://mpd.wikia.com/wiki/TomTom

Then I have error of this kind : /tmp/cczQx5fc.s: Assembler messages: /tmp/cczQx5fc.s:2653: Error: selected processor does not support Thumb mode `rsc r2,r2,#0' /tmp/cczQx5fc.s:2920: Error: selected processor does not support Thumb mode `rsc sl,sl,#0' /tmp/cczQx5fc.s:3623: Error: selected processor does not support Thumb mode `rsc r2,r2,#0' /tmp/cczQx5fc.s:3838: Error: selected processor does not support Thumb mode `rsc r7,r7,#0' make[2]: *** [synth.lo] Error 1 make[2]: Leaving directory `/root/libmad/libmad-0.15.1b' make[1]: *** [all-recursive] Error 1

Here is a build log : root@marx:~/libmad/libmad-0.15.1b# make (sed -e '1s|.*|/*|' -e '1b' -e '$s|.*| */|' -e '$b' \ -e 's/^.*/ *&/' ./COPYRIGHT; echo; \ echo "# ifdef __cplusplus"; \ echo 'extern "C" {'; \ echo "# endif"; echo; \ if [ ".-DFPM_ARM" != "." ]; then \ echo ".-DFPM_ARM" | sed -e 's|^.-D|# define |'; echo; \ fi; \ sed -ne 's/^# *define *(HAVE_.*_ASM).*/# define \1/p' \ config.h; echo; \ sed -ne 's/^# *define *OPT_(SPEED|ACCURACY).*/# define OPT_\1/p' \ config.h; echo; \ sed -ne 's/^# *define *(SIZEOF_.*)/# define \1/p' \ config.h; echo; \ for header in version.h fixed.h bit.h timer.h stream.h frame.h synth.h decoder.h; do \ echo; \ sed -n -f ./mad.h.sed ./$header; \ done; echo; \ echo "# ifdef __cplusplus"; \ echo '}'; \ echo "# endif") >mad.h make all-recursive make[1]: Entering directory `/root/libmad/libmad-0.15.1b' make[2]: Entering directory `/root/libmad/libmad-0.15.1b' if /bin/bash ./libtool --mode=compile gcc -DHAVE_CONFIG_H -I. -I. -I. -DFPM_ARM -DASO_INTERLEAVE1 -DASO_IMDCT -Wall -g -O -fforce-addr -fthread-jumps -fcse-follow-jumps -fcse-skip-blocks -fexpensive-optimizations -fregmove -fschedule-insns2 -fstrength-reduce -MT version.lo -MD -MP -MF ".deps/version.Tpo" -c -o version.lo version.c; \ then mv -f ".deps/version.Tpo" ".deps/version.Plo"; else rm -f ".deps/version.Tpo"; exit 1; fi mkdir .libs gcc -DHAVE_CONFIG_H -I. -I. -I. -DFPM_ARM -DASO_INTERLEAVE1 -DASO_IMDCT -Wall -g -O -fforce-addr -fthread-jumps -fcse-follow-jumps -fcse-skip-blocks -fexpensive-optimizations -fregmove -fschedule-insns2 -fstrength-reduce -MT version.lo -MD -MP -MF .deps/version.Tpo -c version.c -fPIC -DPIC -o .libs/version.o gcc -DHAVE_CONFIG_H -I. -I. -I. -DFPM_ARM -DASO_INTERLEAVE1 -DASO_IMDCT -Wall -g -O -fforce-addr -fthread-jumps -fcse-follow-jumps -fcse-skip-blocks -fexpensive-optimizations -fregmove -fschedule-insns2 -fstrength-reduce -MT version.lo -MD -MP -MF .deps/version.Tpo -c version.c -o version.o >/dev/null 2>&1 if /bin/bash ./libtool --mode=compile gcc -DHAVE_CONFIG_H -I. -I. -I. -DFPM_ARM -DASO_INTERLEAVE1 -DASO_IMDCT -Wall -g -O -fforce-addr -fthread-jumps -fcse-follow-jumps -fcse-skip-blocks -fexpensive-optimizations -fregmove -fschedule-insns2 -fstrength-reduce -MT fixed.lo -MD -MP -MF ".deps/fixed.Tpo" -c -o fixed.lo fixed.c; \ then mv -f ".deps/fixed.Tpo" ".deps/fixed.Plo"; else rm -f ".deps/fixed.Tpo"; exit 1; fi gcc -DHAVE_CONFIG_H -I. -I. -I. -DFPM_ARM -DASO_INTERLEAVE1 -DASO_IMDCT -Wall -g -O -fforce-addr -fthread-jumps -fcse-follow-jumps -fcse-skip-blocks -fexpensive-optimizations -fregmove -fschedule-insns2 -fstrength-reduce -MT fixed.lo -MD -MP -MF .deps/fixed.Tpo -c fixed.c -fPIC -DPIC -o .libs/fixed.o gcc -DHAVE_CONFIG_H -I. -I. -I. -DFPM_ARM -DASO_INTERLEAVE1 -DASO_IMDCT -Wall -g -O -fforce-addr -fthread-jumps -fcse-follow-jumps -fcse-skip-blocks -fexpensive-optimizations -fregmove -fschedule-insns2 -fstrength-reduce -MT fixed.lo -MD -MP -MF .deps/fixed.Tpo -c fixed.c -o fixed.o >/dev/null 2>&1 if /bin/bash ./libtool --mode=compile gcc -DHAVE_CONFIG_H -I. -I. -I. -DFPM_ARM -DASO_INTERLEAVE1 -DASO_IMDCT -Wall -g -O -fforce-addr -fthread-jumps -fcse-follow-jumps -fcse-skip-blocks -fexpensive-optimizations -fregmove -fschedule-insns2 -fstrength-reduce -MT bit.lo -MD -MP -MF ".deps/bit.Tpo" -c -o bit.lo bit.c; \ then mv -f ".deps/bit.Tpo" ".deps/bit.Plo"; else rm -f ".deps/bit.Tpo"; exit 1; fi gcc -DHAVE_CONFIG_H -I. -I. -I. -DFPM_ARM -DASO_INTERLEAVE1 -DASO_IMDCT -Wall -g -O -fforce-addr -fthread-jumps -fcse-follow-jumps -fcse-skip-blocks -fexpensive-optimizations -fregmove -fschedule-insns2 -fstrength-reduce -MT bit.lo -MD -MP -MF .deps/bit.Tpo -c bit.c -fPIC -DPIC -o .libs/bit.o gcc -DHAVE_CONFIG_H -I. -I. -I. -DFPM_ARM -DASO_INTERLEAVE1 -DASO_IMDCT -Wall -g -O -fforce-addr -fthread-jumps -fcse-follow-jumps -fcse-skip-blocks -fexpensive-optimizations -fregmove -fschedule-insns2 -fstrength-reduce -MT bit.lo -MD -MP -MF .deps/bit.Tpo -c bit.c -o bit.o >/dev/null 2>&1 if /bin/bash ./libtool --mode=compile gcc -DHAVE_CONFIG_H -I. -I. -I. -DFPM_ARM -DASO_INTERLEAVE1 -DASO_IMDCT -Wall -g -O -fforce-addr -fthread-jumps -fcse-follow-jumps -fcse-skip-blocks -fexpensive-optimizations -fregmove -fschedule-insns2 -fstrength-reduce -MT timer.lo -MD -MP -MF ".deps/timer.Tpo" -c -o timer.lo timer.c; \ then mv -f ".deps/timer.Tpo" ".deps/timer.Plo"; else rm -f ".deps/timer.Tpo"; exit 1; fi gcc -DHAVE_CONFIG_H -I. -I. -I. -DFPM_ARM -DASO_INTERLEAVE1 -DASO_IMDCT -Wall -g -O -fforce-addr -fthread-jumps -fcse-follow-jumps -fcse-skip-blocks -fexpensive-optimizations -fregmove -fschedule-insns2 -fstrength-reduce -MT timer.lo -MD -MP -MF .deps/timer.Tpo -c timer.c -fPIC -DPIC -o .libs/timer.o gcc -DHAVE_CONFIG_H -I. -I. -I. -DFPM_ARM -DASO_INTERLEAVE1 -DASO_IMDCT -Wall -g -O -fforce-addr -fthread-jumps -fcse-follow-jumps -fcse-skip-blocks -fexpensive-optimizations -fregmove -fschedule-insns2 -fstrength-reduce -MT timer.lo -MD -MP -MF .deps/timer.Tpo -c timer.c -o timer.o >/dev/null 2>&1 if /bin/bash ./libtool --mode=compile gcc -DHAVE_CONFIG_H -I. -I. -I. -DFPM_ARM -DASO_INTERLEAVE1 -DASO_IMDCT -Wall -g -O -fforce-addr -fthread-jumps -fcse-follow-jumps -fcse-skip-blocks -fexpensive-optimizations -fregmove -fschedule-insns2 -fstrength-reduce -MT stream.lo -MD -MP -MF ".deps/stream.Tpo" -c -o stream.lo stream.c; \ then mv -f ".deps/stream.Tpo" ".deps/stream.Plo"; else rm -f ".deps/stream.Tpo"; exit 1; fi gcc -DHAVE_CONFIG_H -I. -I. -I. -DFPM_ARM -DASO_INTERLEAVE1 -DASO_IMDCT -Wall -g -O -fforce-addr -fthread-jumps -fcse-follow-jumps -fcse-skip-blocks -fexpensive-optimizations -fregmove -fschedule-insns2 -fstrength-reduce -MT stream.lo -MD -MP -MF .deps/stream.Tpo -c stream.c -fPIC -DPIC -o .libs/stream.o gcc -DHAVE_CONFIG_H -I. -I. -I. -DFPM_ARM -DASO_INTERLEAVE1 -DASO_IMDCT -Wall -g -O -fforce-addr -fthread-jumps -fcse-follow-jumps -fcse-skip-blocks -fexpensive-optimizations -fregmove -fschedule-insns2 -fstrength-reduce -MT stream.lo -MD -MP -MF .deps/stream.Tpo -c stream.c -o stream.o >/dev/null 2>&1 if /bin/bash ./libtool --mode=compile gcc -DHAVE_CONFIG_H -I. -I. -I. -DFPM_ARM -DASO_INTERLEAVE1 -DASO_IMDCT -Wall -g -O -fforce-addr -fthread-jumps -fcse-follow-jumps -fcse-skip-blocks -fexpensive-optimizations -fregmove -fschedule-insns2 -fstrength-reduce -MT frame.lo -MD -MP -MF ".deps/frame.Tpo" -c -o frame.lo frame.c; \ then mv -f ".deps/frame.Tpo" ".deps/frame.Plo"; else rm -f ".deps/frame.Tpo"; exit 1; fi gcc -DHAVE_CONFIG_H -I. -I. -I. -DFPM_ARM -DASO_INTERLEAVE1 -DASO_IMDCT -Wall -g -O -fforce-addr -fthread-jumps -fcse-follow-jumps -fcse-skip-blocks -fexpensive-optimizations -fregmove -fschedule-insns2 -fstrength-reduce -MT frame.lo -MD -MP -MF .deps/frame.Tpo -c frame.c -fPIC -DPIC -o .libs/frame.o gcc -DHAVE_CONFIG_H -I. -I. -I. -DFPM_ARM -DASO_INTERLEAVE1 -DASO_IMDCT -Wall -g -O -fforce-addr -fthread-jumps -fcse-follow-jumps -fcse-skip-blocks -fexpensive-optimizations -fregmove -fschedule-insns2 -fstrength-reduce -MT frame.lo -MD -MP -MF .deps/frame.Tpo -c frame.c -o frame.o >/dev/null 2>&1 if /bin/bash ./libtool --mode=compile gcc -DHAVE_CONFIG_H -I. -I. -I. -DFPM_ARM -DASO_INTERLEAVE1 -DASO_IMDCT -Wall -g -O -fforce-addr -fthread-jumps -fcse-follow-jumps -fcse-skip-blocks -fexpensive-optimizations -fregmove -fschedule-insns2 -fstrength-reduce -MT synth.lo -MD -MP -MF ".deps/synth.Tpo" -c -o synth.lo synth.c; \ then mv -f ".deps/synth.Tpo" ".deps/synth.Plo"; else rm -f ".deps/synth.Tpo"; exit 1; fi gcc -DHAVE_CONFIG_H -I. -I. -I. -DFPM_ARM -DASO_INTERLEAVE1 -DASO_IMDCT -Wall -g -O -fforce-addr -fthread-jumps -fcse-follow-jumps -fcse-skip-blocks -fexpensive-optimizations -fregmove -fschedule-insns2 -fstrength-reduce -MT synth.lo -MD -MP -MF .deps/synth.Tpo -c synth.c -fPIC -DPIC -o .libs/synth.o /tmp/cczQx5fc.s: Assembler messages: /tmp/cczQx5fc.s:2653: Error: selected processor does not support Thumb mode `rsc r2,r2,#0' /tmp/cczQx5fc.s:2920: Error: selected processor does not support Thumb mode `rsc sl,sl,#0' /tmp/cczQx5fc.s:3623: Error: selected processor does not support Thumb mode `rsc r2,r2,#0' /tmp/cczQx5fc.s:3838: Error: selected processor does not support Thumb mode `rsc r7,r7,#0' make[2]: *** [synth.lo] Error 1 make[2]: Leaving directory `/root/libmad/libmad-0.15.1b' make[1]: *** [all-recursive] Error 1

Here is my system : root@marx:~/libmad/libmad-0.15.1b# uname -a Linux marx 3.0.35 #3 SMP PREEMPT Fri Jul 5 17:13:24 CEST 2013 armv7l armv7l armv7l GNU/Linux

And compiler :

root@marx:~/libmad/libmad-0.15.1b# gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/lib/gcc/arm-linux-gnueabihf/4.6/lto-wrapper Target: arm-linux-gnueabihf Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro 4.6.3-1ubuntu5' --with-bugurl=file:///usr/share/doc/gcc-4.6/README.Bugs --enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.6 --enable-shared --enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.6 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-gnu-unique-object --enable-plugin --enable-objc-gc --enable-multilib --disable-sjlj-exceptions --with-arch=armv7-a --with-float=hard --with-fpu=vfpv3-d16 --with-mode=thumb --disable-werror --enable-checking=release --build=arm-linux-gnueabihf --host=arm-linux-gnueabihf --target=arm-linux-gnueabihf Thread model: posix gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5)

Does anybody have an idea where I can look for debugging this issue?

Best regards, Drasko