Khem Raj wrote: > > > > On 8/23/17 3:40 PM, Ferry Toth wrote: >> Op Wed, 23 Aug 2017 14:51:55 -0700, schreef Khem Raj: >> >>> On 8/23/17 2:29 PM, Ferry Toth wrote: >>>> Ferry Toth wrote: >>>> >>>>> Khem Raj wrote: >>>>> >>>>>> On 8/22/17 11:41 PM, Ferry Toth wrote: >>>>>>> I am having trouble building a specific U-Boot version with Yocto. >>>>>>> Outside of Yocto on 64 bit Ubuntu 17.04 with multilib it builds >>>>>>> fine. >>>>>>> >>>>>>> I am extending meta-intel-edison to build a 64 bit Poke Morty, with >>>>>>> a vanilla 64-bit kernel (4.12). This is working quite well. >>>>>>> >>>>>>> My host is x86_64, the target is core2 with tune=core-64. >>>>>>> >>>>>>> Without 64bit tune I can build U-Boot fine. With 64bit it can not >>>>>>> link, appearently because it needs lbgcc.a >>>>>> >>>>>> what is exact error message ? is it while compiling host bits or >>>>>> target bits ? >>>>> >>>>> The failing line is: >>>>> x86_64-poky-linux-ld.bfd -Bsymbolic -Bsymbolic-functions -m elf_i386 >>>>> --emit- relocs --wrap=__divdi3 --wrap=__udivdi3 --wrap=__moddi3 >>>>> --wrap=__umoddi3 -- gc-sections -pie -Bstatic --no-dynamic-linker >>>>> -Ttext 0x01101000 -o u-boot -T u-boot.lds arch/x86/cpu/start.o >>>>> --start-group arch/x86/cpu/built-in.o arch/x86/lib/built-in.o >>>>> board/intel/edison/built-in.o cmd/built-in.o common/built-in.o >>>>> disk/built-in.o drivers/built-in.o drivers/dma/built-in.o >>>>> drivers/gpio/built-in.o drivers/i2c/built-in.o drivers/mmc/built-in.o >>>>> drivers/mtd/built-in.o drivers/mtd/onenand/built-in.o >>>>> drivers/mtd/spi/built- in.o drivers/net/built-in.o >>>>> drivers/net/phy/built-in.o drivers/pci/built- in.o >>>>> drivers/power/built-in.o drivers/power/battery/built-in.o >>>>> drivers/power/domain/built-in.o drivers/power/fuel_gauge/built-in.o >>>>> drivers/power/mfd/built-in.o drivers/power/pmic/built-in.o >>>>> drivers/power/regulator/built-in.o drivers/serial/built-in.o >>>>> drivers/spi/built-in.o drivers/usb/common/built-in.o >>>>> drivers/usb/dwc3/built- in.o drivers/usb/emul/built-in.o >>>>> drivers/usb/eth/built-in.o drivers/usb/gadget/built-in.o >>>>> drivers/usb/gadget/udc/built-in.o drivers/usb/host/built-in.o >>>>> drivers/usb/musb-new/built-in.o drivers/usb/musb/built-in.o >>>>> drivers/usb/phy/built-in.o drivers/usb/ulpi/built-in.o dts/built-in.o >>>>> fs/built-in.o lib/built-in.o net/built-in.o test/built-in.o >>>>> test/dm/built-in.o --end-group arch/x86/lib/lib.a -Map u-boot.map >>>>> ERROR: oe_runmake failed arch/x86/lib/built-in.o: In function >>>>> `__wrap___udivdi3': >>>>> /home/ferry/tmp/edison-intel/my/edison- >>>>> morty/out/linux64/build/tmp/work/edison-poky-linux/u-boot/edison- >> v2017.03- >>>>> r0/git/arch/x86/lib/gcc.c:25: undefined reference to >>>>> `__normal___udivdi3' >>>> >>>> I as believe the missing lib is libgcc.a I just my sysroot and found it >>>> here: >>> >>> the linker cmdline above does not link with libgcc and there might be a >>> good reason for that, many standalone applications dont link with libgcc >>> intentionally. You could look into the code and see if it can be written >>> differently such that gcc does not have to invoke a helper function from >>> gcc runtime. Another option is to link with libgcc explicitly >> >> If change my setup to build for a 32bit target, it build u-boot without >> error. > > compiler may not be generating calls for the missing function. > >> When I build the same git outside yocto on 64bit with multilib installed >> it also builds without error. In that case the make command would be: >> make -j8 edison_defconfig > > same is possible. Can you do readelf -sW gcc.o and see if there is a > undefined reference to __normal___udivdi3
20: 00000000 22 FUNC GLOBAL HIDDEN 4 __wrap___divdi3 21: 00000000 0 NOTYPE GLOBAL DEFAULT UND __normal___divdi3 22: 00000000 22 FUNC GLOBAL HIDDEN 6 __wrap___udivdi3 23: 00000000 0 NOTYPE GLOBAL DEFAULT UND __normal___udivdi3 24: 00000000 22 FUNC GLOBAL HIDDEN 8 __wrap___moddi3 25: 00000000 0 NOTYPE GLOBAL DEFAULT UND __normal___moddi3 26: 00000000 22 FUNC GLOBAL HIDDEN 10 __wrap___umoddi3 27: 00000000 0 NOTYPE GLOBAL DEFAULT UND __normal___umoddi3 >> >> My conclusion: I have some bb variable set to the wrong value or I need >> to get multilib installed into /..../sysroots/x86_64-linux/lib. >> >> So how to do that? >> >>>> sysroots/lib32-edison/usr/lib/i686-pokymllib32-linux/6.2.0/ >>>> sysroots/lib32-edison-tcbootstrap/usr/lib/i686-pokymllib32-linux/6.2.0/ >>>> sysroots/edison/usr/lib64/x86_64-poky-linux/6.2.0/ >>>> sysroots/edison-tcbootstrap/usr/lib64/x86_64-poky-linux/6.2.0/ >>>> >>>> How compile log shows: >>>> NOTE: make -j8 CROSS_COMPILE=x86_64-poky-linux- >>>> CC=x86_64-poky-linux-gcc --sysroot=/..../sysroots/edison V=1 HOSTCC=gcc >>>> -isystem/..../sysroots/x86_64-linux/usr/include -O2 -pipe >>>> -L/..../sysroots/x86_64-linux/usr/lib -L/..../sysroots/x86_64-linux/lib >>>> -Wl,-rpath-link,/..../sysroots/x86_64-linux/usr/lib >>>> -Wl,-rpath-link,/..../sysroots/x86_64-linux/lib >>>> -Wl,-rpath,/..../sysroots/x86_64-linux/usr/lib >>>> -Wl,-rpath,/..../sysroots/x86_64-linux/lib -Wl,-O1 -C >>>> /..../out/linux64/build/tmp/work/edison-poky-linux/u-boot/edison- >>>> v2017.03-r0/git O=/..../out/linux64/build/tmp/work/edison-poky-linux/u- >>>> boot/edison-v2017.03-r0/build edison_defconfig >>>> >>>> (.... my edits to shorten the uninteresting part of the path) >>>> >>>> I would think: --sysroot points to /edison dir which actually contains >>>> libgcc.a, but -i, _l and -W1 options point to host dirs that don't have >>>> the lib. >>>> >>>> >>>>>>> I attempted to add multilib, but although that immediately exposed >>>>>>> bugs in other recipes but actually adds libgcc.a, it does that for >>>>>>> the target sysroot only. >>>>>>> >>>>>>> And for some reason, U-Boot is built with the native gcc >>>>>>> (x86_64-linux), >>>>>>> and multilib does not add libgcc.a to that sysroot. >>>>>>> >>>>>>> So, how do I add multilib to -native sysroot, preferably only to >>>>>>> -native and not to the target, as the target has not further use for >>>>>>> it? >>>>>>> >>>>>>> Strangest thing is in u-boot.inc there is: >>>>>>> EXTRA_OEMAKE = 'CROSS_COMPILE=${TARGET_PREFIX} >>>>>>> CC="${TARGET_PREFIX}gcc ${TOOLCHAIN_OPTIONS}" V=1' >>>>>>> EXTRA_OEMAKE += 'HOSTCC="${BUILD_CC} ${BUILD_CFLAGS} >>>>>>> ${BUILD_LDFLAGS}"' >>>>>>> >>>>>>> But when I check my log file: >>>>>>> NOTE: make -j8 CROSS_COMPILE=x86_64-poky-linux- >>>>>>> CC=x86_64-poky-linux- gcc ...... >>>>>>> >>>>>>> So TARGET_PREFIX resolves to x86_64-poky-linux, but I think my >>>>>>> target is core2_64 (or something like that). Is that normal for >>>>>>> U-Boot? >>>>>> >>>>>> thats ok. >>>>>> >>>>>> >>>>>>> I am a little lost, so any help would be greatly appreciated! >>>>>>> >>>>>>> Ferry >>>>>>> >>>>>>> >>>>>> -- >>>>> >>>>> >>>>> -- >> >> > -- -- _______________________________________________ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto