[OE-core] meta-toolchain-sdk LDFLAGS fails for ARMv7 (beagleboard)
Ulf Samuelsson
openembedded-core at emagii.com
Tue Apr 8 06:50:47 UTC 2014
Clearing LDFLAGS allows U-Boot to build.
Now trying to build a busybox with static linking, but the SDK only provides the lib<x>.so
and not the lib<x>.a static libraries.
Any easy way to make it include both?
Best Regards
Ulf Samuelsson
7 apr 2014 kl. 22:17 skrev Denys Dmytriyenko <denis at denix.org>:
> On Mon, Apr 07, 2014 at 10:02:40PM +0200, Ulf Samuelsson wrote:
>> Trying to build an SDK for the Beaglebone
>>
>> $ git clone git://git.yoctoproject.org/poky
>> $ cd poky
>> $ git checkout -b dora origin/dora
>>
>> $ . oe-init-build-env
>>
>> MACHINE is set to "beagleboard" in local.conf
>
> It's not critical to your case, but in general beagleboard != beaglebone...
>
> And cutting to the chase - U-boot recipe in OE clears CFLAGS, LDFLAGS and
> CPPFLAGS before building it...
>
>
>> $ ./environment-angstrom-v2013.06
>>
>> $ bitbake meta-toolchain-sdk
>>
>> SDK is generated, and installed in /opt/poky/1.5.1 (default)
>>
>> The toolchain environment file is "sourced"
>>
>> Then I try to build U-Boot-13.10 (with a minor patch)
>>
>>
>> $ make am335x_boneblack_config
>>
>> $ make
>>
>> After compiling a number of file, the linking of a library fails:
>>
>> arm-poky-linux-gnueabi-ld.bfd -Wl,-O1 -Wl,--hash-style=gnu
>> -Wl,--as-needed -r -o libcommon.o cmd_bdinfo.o cmd_boot.o
>> cmd_bootm.o cmd_console.o cmd_dfu.o cmd_disk.o cmd_echo.o
>> cmd_eeprom.o cmd_exit.o cmd_ext2.o cmd_ext4.o cmd_fat.o cmd_fdt.o
>> cmd_fs.o cmd_gpio.o cmd_help.o cmd_i2c.o cmd_itest.o cmd_load.o
>> cmd_mem.o cmd_misc.o cmd_mmc.o cmd_net.o cmd_nvedit.o cmd_pcmcia.o
>> cmd_sf.o cmd_source.o cmd_spi.o cmd_spl.o cmd_test.o cmd_usb.o
>> cmd_version.o cmd_ximg.o command.o console.o dlmalloc.o env_attr.o
>> env_callback.o env_common.o env_flags.o env_mmc.o exports.o
>> fdt_support.o flash.o hash.o hush.o image-fdt.o image.o main.o
>> memsize.o miiphyutil.o s_record.o splash.o stdio.o usb.o usb_hub.o
>> usb_storage.o xyzModem.o
>> arm-poky-linux-gnueabi-ld.bfd: unrecognized option '-Wl,-O1'
>> arm-poky-linux-gnueabi-ld.bfd: use the --help option for usage information
>> make[1]: *** [libcommon.o] Fel 1
>> make[1]: Lämnar katalogen
>> "/home/ulf/felabs/sysdev/bootloader/u-boot-2013.10/common"
>> make: *** [common/libcommon.o] Fel 2
>>
>> -------------------
>> The environment looks like:
>> ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>> export PATH=/opt/poky/1.5.1/sysroots/x86_64-pokysdk-linux/usr/bin:/opt/poky/1.5.1/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi:$PATH
>> export PKG_CONFIG_SYSROOT_DIR=/opt/poky/1.5.1/sysroots/armv7a-vfp-neon-poky-linux-gnueabi
>> export PKG_CONFIG_PATH=/opt/poky/1.5.1/sysroots/armv7a-vfp-neon-poky-linux-gnueabi/usr/lib/pkgconfig
>> export CONFIG_SITE=/opt/poky/1.5.1/site-config-armv7a-vfp-neon-poky-linux-gnueabi
>> export CC="arm-poky-linux-gnueabi-gcc -march=armv7-a
>> -mthumb-interwork -mfloat-abi=softfp -mfpu=neon --sysroot=/opt/poky/1.5.1/sysroots/armv7a-vfp-neon-poky-linux-gnueabi"
>> export CXX="arm-poky-linux-gnueabi-g++ -march=armv7-a
>> -mthumb-interwork -mfloat-abi=softfp -mfpu=neon --sysroot=/opt/poky/1.5.1/sysroots/armv7a-vfp-neon-poky-linux-gnueabi"
>> export CPP="arm-poky-linux-gnueabi-gcc -E -march=armv7-a
>> -mthumb-interwork -mfloat-abi=softfp -mfpu=neon --sysroot=/opt/poky/1.5.1/sysroots/armv7a-vfp-neon-poky-linux-gnueabi"
>> export AS="arm-poky-linux-gnueabi-as "
>> export LD="arm-poky-linux-gnueabi-ld --sysroot=/opt/poky/1.5.1/sysroots/armv7a-vfp-neon-poky-linux-gnueabi"
>> export GDB=arm-poky-linux-gnueabi-gdb
>> export STRIP=arm-poky-linux-gnueabi-strip
>> export RANLIB=arm-poky-linux-gnueabi-ranlib
>> export OBJCOPY=arm-poky-linux-gnueabi-objcopy
>> export OBJDUMP=arm-poky-linux-gnueabi-objdump
>> export AR=arm-poky-linux-gnueabi-ar
>> export NM=arm-poky-linux-gnueabi-nm
>> export M4=m4
>> export TARGET_PREFIX=arm-poky-linux-gnueabi-
>> export CONFIGURE_FLAGS="--target=arm-poky-linux-gnueabi
>> --host=arm-poky-linux-gnueabi --build=x86_64-linux --with-libtool-sysroot=/opt/poky/1.5.1/sysroots/armv7a-vfp-neon-poky-linux-gnueabi"
>> export CFLAGS=" -O2 -pipe -g -feliminate-unused-debug-types"
>> export CXXFLAGS=" -O2 -pipe -g -feliminate-unused-debug-types -fpermissive"
>> export LDFLAGS="-Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed"
>> export CPPFLAGS=""
>> export OECORE_NATIVE_SYSROOT="/opt/poky/1.5.1/sysroots/x86_64-pokysdk-linux"
>> export OECORE_TARGET_SYSROOT="/opt/poky/1.5.1/sysroots/armv7a-vfp-neon-poky-linux-gnueabi"
>> export OECORE_ACLOCAL_OPTS="-I
>> /opt/poky/1.5.1/sysroots/x86_64-pokysdk-linux/usr/share/aclocal"
>> export OECORE_DISTRO_VERSION="1.5.1"
>> export OECORE_SDK_VERSION="1.5.1"
>> export PYTHONHOME=/opt/poky/1.5.1/sysroots/x86_64-pokysdk-linux/usr
>> export ARCH=arm
>> export CROSS_COMPILE=arm-poky-linux-gnueabi-
>> ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>>
>> Notable is:
>> export LD="arm-poky-linux-gnueabi-ld --sysroot=/opt/poky/1.5.1/sysroots/armv7a-vfp-neon-poky-linux-gnueabi"
>> export LDFLAGS="-Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed"
>>
>> From the error message I see:
>> "arm-poky-linux-gnueabi-ld.bfd -Wl,-O1 ..."
>>
>> Note that $(CROSS_COMPILE)-ld.bfd is used, not $(CROSS_COMPILE)-ld
>>
>> so the linker is linking with $(LDFLAGS) which contains switches to
>> be passed to the compiler, and bombs
>>
>> Changing LD to:
>> export LD="arm-poky-linux-gnueabi-gcc --sysroot=/opt/poky/1.5.1/sysroots/armv7a-vfp-neon-poky-linux-gnueabi"
>>
>> Does not help, still you get the same error message with
>> $(CROSS_COMPILE)-ld.bfd called with "-Wl,..." arguments.
>>
>> Only when I am setting LDFLAGS="", E.E: not passing arguments to I
>> can compile U-Boot.
>>
>> It looks like the toolchain does not handle compiler linker flags
>> correctly and passes the arguments without parsing to the linker.
>>
>>
>> If you use the SDK, Is it wrong to do=
>>
>> ${LD} ${LDFLAGS} ??
>>
>> U-Boot does this in several places?
>>
>> Using the poky installation to
>>
>> bitbake core-image-minimal
>>
>> will complete the build of U-Boot-2013.07, but does not pass these options.
>>
>> arm-poky-linux-gnueabi-ld.bfd -r -o /home/ulf/felabs/sysdev/poky/build/tmp/work/beagleboard-poky-linux-gnueabi/u-boot/v2013.07+gitAUTOINC+62c175fbb8-r0/git/spl/common/libcommon.o /home/ulf/felabs/sysdev/poky/build/tmp/work/beagleboard-poky-linux-gnueabi/u-boot/v2013.07+gitAUTOINC+62c175fbb8-r0/git/spl/common/cmd_nvedit.o /home/ulf/felabs/sysdev/poky/build/tmp/work/beagleboard-poky-linux-gnueabi/u-boot/v2013.07+gitAUTOINC+62c175fbb8-r0/git/spl/common/console.o /home/ulf/felabs/sysdev/poky/build/tmp/work/beagleboard-poky-linux-gnueabi/u-boot/v2013.07+gitAUTOINC+62c175fbb8-r0/git/spl/common/dlmalloc.o /home/ulf/felabs/sysdev/poky/build/tmp/work/beagleboard-poky-linux-gnueabi/u-boot/v2013.07+gitAUTOINC+62c175fbb8-r0/git/spl/common/env_common.o /home/ulf/felabs/sysdev/poky/build/tmp/work/beagleboard-poky-linux-gnueabi/u-boot/v2013.07+gitAUTOINC+62c175fbb8-r0/git/spl/common/env_nand.o /home/ulf/felabs/sysdev/poky/build/tmp/work/beagleboard-poky-linux-gnueabi/u-boot/v2013.07+gitAUTOINC+62c175fbb8-r0/git/spl/common/image-fdt.o /home/ulf/felabs/sysdev/poky/build/tmp/work/beagleboard-poky-linux-gnueabi/u-boot/v2013.07+gitAUTOINC+62c175fbb8-r0/git/spl/common/image.o /home/ulf/felabs/sysdev/poky/build/tmp/work/beagleboard-poky-linux-gnueabi/u-boot/v2013.07+gitAUTOINC+62c175fbb8-r0/git/spl/common/memsize.o /home/ulf/felabs/sysdev/poky/build/tmp/work/beagleboard-poky-linux-gnueabi/u-boot/v2013.07+gitAUTOINC+62c175fbb8-r0/git/spl/common/stdio.o
>>
>>
>> --
>> Best Regards
>> Ulf Samuelsson
>> eMagii
>>
>> --
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>> Openembedded-core at lists.openembedded.org
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