Gururaja Hebbar K R wrote: > Hi, > > I am trying to compile uboot 1.3.1 for arm926ejs processor. i am using > CodeSourcery arm-none-linux-gnueabi toolchain (gcc version 4.2.1 > (CodeSourcery Sourcery G++ Lite 2007q3-51)) . > > i am trying to write a driver for our on board mmc controller. i need to > do multiply and divide operation as below. > > unsigned long long c; > static int lc69_mmci_clk = 0; > unsigned int timeout_ns; > > <snip> > <snip> > <snip> > > c = (unsigned long long)timeout_ns * lc69_mmci_clk; > c = c / 1000000000UL;
Don't do this. Compiler/Linker then tries to use math from libraries coming with your tool chain. Normally, U-Boot should be completely independent of any external libraries. Option is to modify your code that compiler/linker doesn't need external libraries: - Try to use shift operation instead of div. E.g. "c = c >> x" - If this doesn't work, have a look to U-Boot's lib_arm directory and use only math available there. E.g (nand_util.c): do_div(n, opts->length); Cheers Dirk > while compilling i am getting an error as below. > > cd /home/guru/project/u_boot/Ubuild && > arm-none-linux-gnueabi-ld -Bstatic -T > /home/guru/project/u_boot/u-boot/board/kboard/u-boot.lds -Ttext 0x200000 > $UNDEF_SYM cpu/arm926ejs/start.o \ > --start-group lib_generic/libgeneric.a > board/kboard/libkboard.a cpu/arm926ejs/libarm926ejs.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 drivers/bios_emulator/libatibiosemu.a > drivers/block/libblock.a drivers/hwmon/libhwmon.a drivers/i2c/libi2c.a > drivers/input/libinput.a drivers/misc/libmisc.a drivers/mtd/libmtd.a > drivers/mtd/nand/libnand.a drivers/mtd/nand_legacy/libnand_legacy.a > drivers/mtd/onenand/libonenand.a drivers/net/libnet.a > drivers/net/sk98lin/libsk98lin.a drivers/pci/libpci.a > drivers/pcmcia/libpcmcia.a drivers/rtc/librtc.a > drivers/serial/libserial.a drivers/usb/libusb.a drivers/video/libvideo.a > post/libpost.a post/drivers/libpostdrivers.a common/libcommon.a > libfdt/libfdt.a --end-group -L > /home/guru/project/original/arm-2007q3/bin/../lib/gcc/arm-none-linux-gnu > eabi/4.2.1 -lgcc \ > -Map u-boot.map -o u-boot > /home/guru/project/original/arm-2007q3/bin/../lib/gcc/arm-none-linux-gnu > eabi/4.2.1/libgcc.a(_udivsi3.o): In function `__aeabi_uidiv': > (.text+0x0): multiple definition of `__udivsi3' > lib_arm/libarm.a(_udivsi3.o):/home/guru/project/u_boot/u-boot/lib_arm/_u > divsi3.S:17: first defined here > arm-none-linux-gnueabi-ld: ERROR: Source object > /home/guru/project/original/arm-2007q3/bin/../lib/gcc/arm-none-linux-gnu > eabi/4.2.1/libgcc.a(_udivdi3.o) has EABI version 5, but target u-boot > has EABI version 0 > arm-none-linux-gnueabi-ld: failed to merge target specific data of file > /home/guru/project/original/arm-2007q3/bin/../lib/gcc/arm-none-linux-gnu > eabi/4.2.1/libgcc.a(_udivdi3.o) > arm-none-linux-gnueabi-ld: ERROR: Source object > /home/guru/project/original/arm-2007q3/bin/../lib/gcc/arm-none-linux-gnu > eabi/4.2.1/libgcc.a(_udivsi3.o) has EABI version 5, but target u-boot > has EABI version 0 > arm-none-linux-gnueabi-ld: failed to merge target specific data of file > /home/guru/project/original/arm-2007q3/bin/../lib/gcc/arm-none-linux-gnu > eabi/4.2.1/libgcc.a(_udivsi3.o) > arm-none-linux-gnueabi-ld: ERROR: Source object > /home/guru/project/original/arm-2007q3/bin/../lib/gcc/arm-none-linux-gnu > eabi/4.2.1/libgcc.a(_clz.o) has EABI version 5, but target u-boot has > EABI version 0 > arm-none-linux-gnueabi-ld: failed to merge target specific data of file > /home/guru/project/original/arm-2007q3/bin/../lib/gcc/arm-none-linux-gnu > eabi/4.2.1/libgcc.a(_clz.o) > /home/guru/project/original/arm-2007q3/bin/../lib/gcc/arm-none-linux-gnu > eabi/4.2.1/libgcc.a(_udivdi3.o):(.ARM.exidx+0x0): undefined reference to > `__aeabi_unwind_cpp_pr0' > make: *** [/home/guru/project/u_boot/Ubuild/u-boot] Error 1 > > when i checked on the internet for this error few > (http://bugzilla.openmoko.org/cgi-bin/bugzilla/attachment.cgi?id=7&actio > n=view) recommended about removing -mabi from config script. > > -PLATFORM_CPPFLAGS +=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) > +PLATFORM_CPPFLAGS +=$(call cc-option) > PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,$(call > cc-option,-malignment-traps,)) > > when i try this, i get a different error. > > cd /home/guru/project/u_boot/Ubuild && > arm-none-linux-gnueabi-ld -Bstatic -T > /home/guru/project/u_boot/u-boot/board/kboard/u-boot.lds -Ttext 0x200000 > $UNDEF_SYM cpu/arm926ejs/start.o \ > --start-group lib_generic/libgeneric.a > board/kboard/libkboard.a cpu/arm926ejs/libarm926ejs.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 drivers/bios_emulator/libatibiosemu.a > drivers/block/libblock.a drivers/hwmon/libhwmon.a drivers/i2c/libi2c.a > drivers/input/libinput.a drivers/misc/libmisc.a drivers/mtd/libmtd.a > drivers/mtd/nand/libnand.a drivers/mtd/nand_legacy/libnand_legacy.a > drivers/mtd/onenand/libonenand.a drivers/net/libnet.a > drivers/net/sk98lin/libsk98lin.a drivers/pci/libpci.a > drivers/pcmcia/libpcmcia.a drivers/rtc/librtc.a > drivers/serial/libserial.a drivers/usb/libusb.a drivers/video/libvideo.a > post/libpost.a post/drivers/libpostdrivers.a common/libcommon.a > libfdt/libfdt.a --end-group -L > /home/guru/project/original/arm-2007q3/bin/../lib/gcc/arm-none-linux-gnu > eabi/4.2.1 -lgcc \ > -Map u-boot.map -o u-boot > /home/guru/project/original/arm-2007q3/bin/../lib/gcc/arm-none-linux-gnu > eabi/4.2.1/libgcc.a(_dvmd_lnx.o): In function `__div0': > (.text+0x8): undefined reference to `raise' > /home/guru/project/original/arm-2007q3/bin/../lib/gcc/arm-none-linux-gnu > eabi/4.2.1/libgcc.a(_divdi3.o):(.ARM.exidx+0x0): undefined reference to > `__aeabi_unwind_cpp_pr0' > /home/guru/project/original/arm-2007q3/bin/../lib/gcc/arm-none-linux-gnu > eabi/4.2.1/libgcc.a(_udivdi3.o):(.ARM.exidx+0x0): undefined reference to > `__aeabi_unwind_cpp_pr0' > make: *** [/home/guru/project/u_boot/Ubuild/u-boot] Error 1 > > > Does anyone has a better solution for this. > > Thanks in advance > > Regards > Gururaja > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > _______________________________________________ > U-Boot-Users mailing list > U-Boot-Users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/u-boot-users > ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ U-Boot-Users mailing list U-Boot-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users
