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List:       buildroot
Subject:    [Buildroot] gcc-4.1.2 eabi softfloat toolchain, undefined reference to "raise"
From:       rep.dot.nop () gmail ! com (Bernhard Fischer)
Date:       2007-04-30 12:57:31
Message-ID: 20070430125731.GC18543 () aon ! at
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On Thu, Apr 26, 2007 at 10:02:59AM +0200, Konstantin Kletschke wrote:
> I have a toolcahin working quite well: gcc-4.1.2 binutils-2.17, generic
> arm softfloat supporting EABI. This works with kernel and userspace
> well. Only on u-boot it fails at the final stage:
> 
> UNDEF_SYM=`arm-linux-objdump -x lib_generic/libgeneric.a board/scb9328/libscb9328.a \
> cpu/arm920t/libarm920t.a cpu/arm920t/imx/libimx.a lib_arm/libarm.a \
> fs/cramfs/libcramfs.a fs/fat/libfat.a fs/fdos/libfdos.a fs/jffs2/libjffs2.a \
> fs/reiserfs/libreiserfs.a fs/ext2/libext2fs.a net/libnet.a disk/libdisk.a \
> rtc/librtc.a dtt/libdtt.a drivers/libdrivers.a drivers/nand/libnand.a \
> drivers/nand_legacy/libnand_legacy.a drivers/sk98lin/libsk98lin.a post/libpost.a \
> post/cpu/libcpu.a common/libcommon.a |sed  -n -e \
> 's/.*\(__u_boot_cmd_.*\)/-u\1/p'|sort|uniq`;\ cd /usr/src/u-boot/1.2.0 && \
> arm-linux-ld -Bstatic -T /usr/src/u-boot/1.2.0/board/scb9328/u-boot.lds -Ttext \
>                 0x08f00000  $UNDEF_SYM cpu/arm920t/start.o \
> --start-group lib_generic/libgeneric.a board/scb9328/libscb9328.a \
> cpu/arm920t/libarm920t.a cpu/arm920t/imx/libimx.a lib_arm/libarm.a \
> fs/cramfs/libcramfs.a fs/fat/libfat.a fs/fdos/libfdos.a fs/jffs2/libjffs2.a \
> fs/reiserfs/libreiserfs.a fs/ext2/libext2fs.a net/libnet.a disk/libdisk.a \
> rtc/librtc.a dtt/libdtt.a drivers/libdrivers.a drivers/nand/libnand.a \
> drivers/nand_legacy/libnand_legacy.a drivers/sk98lin/libsk98lin.a post/libpost.a \
> post/cpu/libcpu.a common/libcommon.a --end-group -L \
>                 /usr/local/arm/gcc-4.1.2/lib/gcc/arm-linux-uclibcgnueabi/4.1.2 \
>                 -lgcc \
> -Map u-boot.map -o u-boot
> /usr/local/arm/gcc-4.1.2/lib/gcc/arm-linux-uclibcgnueabi/4.1.2/libgcc.a(_dvmd_lnx.o): \
>                 In function `__div0':
> /usr/src/br/buildroot-20070206/toolchain_build_arm_nofpu/gcc-4.1.2-20070128/gcc/config/arm/lib1funcs.asm:1000: \
>                 undefined reference to `raise'
> make: *** [u-boot] Error 1

This is a known bug with gcc. There is a bugfix (that i don't really
understand and consequently don't know if it is really accurate)
floating around for this one.

If in doubt, please file a PR in http://gcc.gnu.org/bugzilla/ about this bug
and perhaps add a pointer to the patch if this bug is not yet entered in
bugzilla.

TIA,
> 
> Well, compiling u-boot works fine with another arch (pxa xscale), only my arm9 
> i.MX arch triggers a bug here. Does somebody have an advise or tip for
> me how to fix this?


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