[OE-core] meta-toolchain-sdk LDFLAGS fails for ARMv7 (beagleboard)
Ulf Samuelsson
ulf at emagii.com
Tue Apr 8 08:57:37 UTC 2014
8 apr 2014 kl. 08:50 skrev Ulf Samuelsson <openembedded-core at emagii.com>:
> 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?
Found it!
[By default, this toolchain does not build static binaries. If you want to use the toolchain to build these types of libraries, you need to be sure your image has the appropriate static development libraries. Use the IMAGE_INSTALL variable inside your local.conf file to install the appropriate library packages. Following is an example using eglibc static development libraries:
IMAGE_INSTALL_append = " eglibc-staticdev"]
Best Regards
Ulf Samuelsson
>
> 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
>>>
>>> --
>>> _______________________________________________
>>> Openembedded-core mailing list
>>> Openembedded-core at lists.openembedded.org
>>> http://lists.openembedded.org/mailman/listinfo/openembedded-core
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