llvm dev - Jul 2010 - [LLVMdev] build errors while cross compiling llvm-gcc for ARM

Sorry for not explaining well.

After compiling with g++-cross
g++-cross -c a.c

I do link using this command
/gold_binutils/build/gold/ld-new -plugin
~/Desktop/Sanjeev/LLVM/llvm-2.7/Release/lib/libLLVMgold.so --eh-frame-hdr
-melf_i386 -dynamic-linker /lib/ld-linux.so.2 /usr/lib/crt1.o
/usr/lib/crti.o
/usr/local/lib/gcc/i686-pc-linux-gnu/4.2.0/crtbegin.o
-L/usr/local/lib/gcc/i686-pc-linux-gnu/4.2.0  -L/usr/local/lib -lgcc
--as-needed -lgcc_s --no-as-needed -lc -lgcc -lpthread -lrt --as-needed
-lgcc_s --no-as-needed /usr/local/lib/gcc/i686-pc-linux-gnu/4.2.0/crtend.o
/usr/lib/crtn.o a.o -o sanjeevtest

On Mon, Jul 12, 2010 at 7:03 PM, Anton Korobeynikov <anton at
korobeynikov.info
> wrote:
> > Yes, I'm following this page only and did whatever is mentioned
there.
> It doesn't seem so. E.g. it contains the following line:
> "The linker takes a -plugin option that points to the path of the
> plugin .so file."
> and
> "Replace that with ld-new -plugin /path/to/libLLVMgold.so to test it
out."
>
> At least you are not telling ld-new to use any plugin. Thus ld-new
> does not know how to deal with LLVM IR inside .o and you obtain:
> >ld-new libs a.o -o binary
> >a.o : incompatible object file
>
> --
> With best regards, Anton Korobeynikov
> Faculty of Mathematics and Mechanics, Saint Petersburg State University
>
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> ~/Desktop/Sanjeev/LLVM/llvm-2.7/Release/lib/libLLVMgold.so --eh-frame-hdr
> -melf_i386 -dynamic-linker /lib/ld-linux.so.2 /usr/lib/crt1.o
Ok, this way you're generating code for x86
> /usr/lib/crti.o
> /usr/local/lib/gcc/i686-pc-linux-gnu/4.2.0/crtbegin.o
> -L/usr/local/lib/gcc/i686-pc-linux-gnu/4.2.0  -L/usr/local/lib -lgcc
> --as-needed -lgcc_s --no-as-needed -lc -lgcc -lpthread -lrt --as-needed
> -lgcc_s --no-as-needed /usr/local/lib/gcc/i686-pc-linux-gnu/4.2.0/crtend.o
> /usr/lib/crtn.o a.o -o sanjeevtest
And you're using x86 libs. Surely you won't obtain ARM binary.

-- 
With best regards, Anton Korobeynikov
Faculty of Mathematics and Mechanics, Saint Petersburg State University

Hello,

I'm using gold linker now to see if there can be any performance gain. Also
using latest gcc version (4.4.4) and latest binutils.

But when I'm compiling llvm-gcc, I'm getting this error.

/home/jal/llvm-gcc-4.2-2.7.source/host-i686-pc-linux-gnu/gcc/xgcc
-B/home/jal/llvm-gcc-4.2-2.7.source/host-i686-pc-linux-gnu/gcc/
-B/usr/local/arm-v7a8-linux-gnueabi/bin/
-B/usr/local/arm-v7a8-linux-gnueabi/lib/ -isystem
/usr/local/arm-v7a8-linux-gnueabi/include -isystem
/usr/local/arm-v7a8-linux-gnueabi/sys-include  -O2  -O2 -g -O2
--sysroot=/home/jal/VDLinux-armv7a8-toolchain/arm-v7a8-linux-gnueabi/libc
-DIN_GCC -DCROSS_DIRECTORY_STRUCTURE   -W -Wall -Wwrite-strings
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem
./include  -fPIC -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2
-D__GCC_FLOAT_NOT_NEEDED  -I. -I. -I../.././gcc -I../.././gcc/.
-I../.././gcc/../include -I../.././gcc/../libcpp/include
-I../.././gcc/../libdecnumber -I../libdecnumber -I/home/jal/llvm-2.7/include
-DL_mulsc3 -fvisibility=hidden -DHIDE_EXPORTS -c ../.././gcc/libgcc2.c -o
libgcc/./_mulsc3.o
/tmp/ccmyj0Hi.s: Assembler messages:
/tmp/ccmyj0Hi.s:60: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:62: Error: bad instruction `vmrsvs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:71: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:76: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:83: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:87: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:105: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:109: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:112: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:118: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:125: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:130: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:136: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:146: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:158: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:161: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:167: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:171: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:186: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:190: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:193: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:199: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:206: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:211: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:217: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:222: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:236: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:240: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:244: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:248: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:252: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:256: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:260: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:264: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:269: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:274: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:280: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:285: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:291: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:296: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:302: Error: bad instruction `vmrs apsr_nzcv,fpscr'
/tmp/ccmyj0Hi.s:308: Error: bad instruction `vmrs apsr_nzcv,fpscr'
make[3]: *** [libgcc/./_mulsc3.o] Error 1
make[3]: Leaving directory
`/home/jal/llvm-gcc-4.2-2.7.source/host-i686-pc-linux-gnu/gcc'
make[2]: *** [stmp-multilib] Error 2
make[2]: Leaving directory
`/home/jal/llvm-gcc-4.2-2.7.source/host-i686-pc-linux-gnu/gcc'
make[1]: *** [all-gcc] Error 2
make[1]: Leaving directory `/home/jal/llvm-gcc-4.2-2.7.source'
make: *** [all] Error 2

Toolkit version is
Configured with:
/scratch/julian_vda8/2010q1-release-linux-lite/src/gcc-4.4-2010q1/configure
--build=i686-pc-linux-gnu --host=i686-pc-linux-gnu
--target=arm-v7a8-linux-gnueabi --enable-threads --disable-libmudflap
--disable-libssp --disable-libstdcxx-pch --enable-extra-sgxxlite-multilibs
--with-gnu-as --with-gnu-ld
--with-specs='%{funwind-tables|fno-unwind-tables|mabi=*|ffreestanding|nostdlib:;:-funwind-tables}
%{O2:%{!fno-remove-local-statics: -fremove-local-statics}}
%{O*:%{O|O0|O1|O2|Os:;:%{!fno-remove-local-statics:
-fremove-local-statics}}}' --enable-languages=c,c++ --enable-shared
--disable-lto --enable-symvers=gnu --enable-__cxa_atexit
--with-pkgversion='VDLinux ga-release 2010-06-30'
--with-bugurlhttp://linux.sec.samsung.net/VDLinux/ --disable-nls
--prefix=/opt/codesourcery
--with-sysroot=/opt/codesourcery/arm-v7a8-linux-gnueabi/libc
--with-build-sysroot=/scratch/julian_vda8/2010q1-release-linux-lite/install/arm-v7a8-linux-gnueabi/libc
--with-gmp=/scratch/julian_vda8/2010q1-release-linux-lite/obj/host-libs-2010q1-202-arm-v7a8-linux-gnueabi-i686-pc-linux-gnu/usr
--with-mpfr=/scratch/julian_vda8/2010q1-release-linux-lite/obj/host-libs-2010q1-202-arm-v7a8-linux-gnueabi-i686-pc-linux-gnu/usr
--with-ppl=/scratch/julian_vda8/2010q1-release-linux-lite/obj/host-libs-2010q1-202-arm-v7a8-linux-gnueabi-i686-pc-linux-gnu/usr
--with-host-libstdcxx='-static-libgcc -Wl,-Bstatic,-lstdc++,-Bdynamic
-lm'
--with-cloog=/scratch/julian_vda8/2010q1-release-linux-lite/obj/host-libs-2010q1-202-arm-v7a8-linux-gnueabi-i686-pc-linux-gnu/usr
--disable-libgomp --enable-poison-system-directories
--with-build-time-tools=/scratch/julian_vda8/2010q1-release-linux-lite/install/arm-v7a8-linux-gnueabi/bin
--with-build-time-tools=/scratch/julian_vda8/2010q1-release-linux-lite/install/arm-v7a8-linux-gnueabi/bin
--with-interwork --with-cpu=cortex-a8 --with-arch=armv7-a --with-mode=arm
--with-tune=cortex-a8 --with-fpu=vfp3 --with-float=softfp
Thread model: posix
gcc version 4.4.1 (VDLinux ga-release 2010-06-30)

And llvm-gcc configured with
/configure --host=i686-pc-linux-gnu --build=i686-pc-linux-gnu
--target=arm-v7a8-linux-gnueabi --enable-cross
--with-sysroot=/home/jal/VDLinux-armv7a8-toolchain/arm-v7a8-linux-gnueabi/libc
--with-build-sysroot=/home/jal/VDLinux-armv7a8-toolchain/arm-v7a8-linux-gnueabi/libc
--enable-languages=c,c++
--with-as=/home/jal/VDLinux-armv7a8-toolchain/bin/arm-v7a8-linux-gnueabi-as
--with-ld=/home/jal/VDLinux-armv7a8-toolchain/bin/arm-v7a8-linux-gnueabi-ld
--enable-checking=release --disable-multilib
--enable-llvm=/home/jal/llvm-2.7 --enable-clocale=gnu --with-cpu=cortex-a8
--with-interwork --with-arch=armv7-a --with-mode=arm --with-tune=cortex-a8
--with-fpu=vfp3 --with-float=softfp --disable-bootstrap --disable-libmudflap
--disable-libssp

Thanks & Regards
Sanjeev

On Mon, Jul 12, 2010 at 7:55 PM, Anton Korobeynikov <anton at
korobeynikov.info
> wrote:
> > ~/Desktop/Sanjeev/LLVM/llvm-2.7/Release/lib/libLLVMgold.so
--eh-frame-hdr
> > -melf_i386 -dynamic-linker /lib/ld-linux.so.2 /usr/lib/crt1.o
> Ok, this way you're generating code for x86
>
> > /usr/lib/crti.o
> > /usr/local/lib/gcc/i686-pc-linux-gnu/4.2.0/crtbegin.o
> > -L/usr/local/lib/gcc/i686-pc-linux-gnu/4.2.0  -L/usr/local/lib -lgcc
> > --as-needed -lgcc_s --no-as-needed -lc -lgcc -lpthread -lrt
--as-needed
> > -lgcc_s --no-as-needed
> /usr/local/lib/gcc/i686-pc-linux-gnu/4.2.0/crtend.o
> > /usr/lib/crtn.o a.o -o sanjeevtest
> And you're using x86 libs. Surely you won't obtain ARM binary.
>
> --
> With best regards, Anton Korobeynikov
> Faculty of Mathematics and Mechanics, Saint Petersburg State University
>
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