[U-Boot] [PATCH] arm: Handle .gnu.hash section in ldscripts

Sun Mar 9 21:34:16 CET 2014

Hi Andreas,

On Sun, 09 Mar 2014 21:22:34 +0100, Andreas Färber <afaerber at suse.de>
wrote:

> Am 09.03.2014 21:05, schrieb Albert ARIBAUD:
> > On Mon, 3 Mar 2014 08:00:52 +0100, Albert ARIBAUD
> > <albert.u.boot at aribaud.net> wrote:
> > 
> >> Hi Andreas,
> >>
> >> (seems an answer from me yesterday didn't make it out of the NSA
> >> interceptors...)
> >>
> >> On Sun, 02 Mar 2014 23:00:19 +0100, Andreas Färber
> >> <afaerber at suse.de> wrote:
> >>
> >>> Am 02.03.2014 21:57, schrieb Andreas Färber:
> >>>> Hi Albert,
> >>>>
> >>>> Am 02.03.2014 20:15, schrieb Albert ARIBAUD:
> >>>>> Hi Andreas,
> >>>>>
> >>>>> On Sun, 02 Mar 2014 18:57:14 +0100, Andreas Färber <afaerber at suse.de>
> >>>>> wrote:
> >>>>>
> >>>>>> Hi Albert,
> >>>>>>
> >>>>>> Am 22.02.2014 14:27, schrieb Albert ARIBAUD:
> >>>>>>> On Thu, 13 Feb 2014 12:39:07 +0100, Albert ARIBAUD
> >>>>>>> <albert.u.boot at aribaud.net> wrote:
> >>>>>>>
> >>>>>>>> Can you point me to the toolchain you are using, and if you are not
> >>>>>>>> building mainline code, can you make this code available to me somehow?
> >>>> [...]
> >>>>>> Our latest GCC 4.8.2 can be found here:
> >>>>>> https://build.opensuse.org/package/show/openSUSE:Factory:ARM/gcc48
> >>>>>>
> >>>>>> Matching binutils 2.24 are here:
> >>>>>> https://build.opensuse.org/package/show/openSUSE:Factory:ARM/binutils
> >>>>>>
> >>>>>> Our latest U-Boot tarball and patches:
> >>>>>> https://build.opensuse.org/package/show/Base:System/u-boot
> >>>>>> Build logs can be found in the u-boot-* packages in the same project,
> >>>>>> with underscores stripped, e.g.:
> >>>>>> https://build.opensuse.org/package/show/Base:System/u-boot-am335xevm
> >>>>>
> >>>>> Thanks for your reply. Apparently, the problem does not appear for the
> >>>>> boards in mainline U-Boot which I listed above with the source code
> >>>>> from our v2014.01 tag and using gcc 4.8.1 from Linaro. I can install
> >>>>> 4.8.2, but meanwhile, can you try to build v2014.01 for these boards
> >>>>> with your setup?
> >>>>>
> >>>>> am335x_evm colibri_t20_iris highbank mx53loco omap3_beagle
> >>>>> omap4_panda paz00 rpi_b
> >>>>
> >>>> I have commented out the patch in:
> >>>> https://build.opensuse.org/project/show/home:a_faerber:branches:Base:System
> >>>>
> >>>> While there are apparently frequent rebuilds scheduled ATM, it seemed
> >>>> like the colibri_t20_iris config intermittently built OK without it.
> >>>> Maybe some gcc 4.8 stable branch update [1] resolved it ... will keep an
> >>>> eye on the build status to confirm. If everything builds, I'm happy.
> >>>
> >>> Nah, still fails without the patch:
> >>>
> >>> [  178s] gcc -E -g  -Os   -ffunction-sections -fdata-sections
> >>> -fno-common -ffixed-r9 -msoft-float  -D__KERNEL__
> >>> -DCONFIG_SYS_TEXT_BASE=0x0010E000
> >>> -I/home/abuild/rpmbuild/BUILD/u-boot-2014.01/include
> >>> -I/home/abuild/rpmbuild/BUILD/u-boot-2014.01/arch/arm/include
> >>> -fno-builtin -ffreestanding -nostdinc -isystem
> >>> /usr/lib/gcc/armv7hl-suse-linux-gnueabi/4.8/include -pipe  -DCONFIG_ARM
> >>> -D__ARM__ -marm -mno-thumb-interwork -mabi=aapcs-linux
> >>> -mword-relocations -march=armv7-a -include
> >>> /home/abuild/rpmbuild/BUILD/u-boot-2014.01/include/u-boot/u-boot.lds.h
> >>> -DCPUDIR=arch/arm/cpu/armv7  -ansi -D__ASSEMBLY__ -P -
> >>> </home/abuild/rpmbuild/BUILD/u-boot-2014.01/arch/arm/cpu/u-boot.lds
> >>>> u-boot.lds
> >>> [  178s] cd /home/abuild/rpmbuild/BUILD/u-boot-2014.01 && ld.bfd  -pie
> >>> -T u-boot.lds --gc-sections -Bstatic -Ttext 0x0010E000
> >>> arch/arm/cpu/armv7/start.o --start-group arch/arm/cpu/armv7/built-in.o
> >>> arch/arm/cpu/armv7/tegra20/built-in.o arch/arm/cpu/built-in.o
> >>> arch/arm/lib/built-in.o board/toradex/colibri_t20_iris/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/input/built-in.o drivers/mmc/built-in.o drivers/mtd/built-in.o
> >>> drivers/mtd/nand/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/battery/built-in.o drivers/power/built-in.o
> >>> drivers/power/fuel_gauge/built-in.o drivers/power/mfd/built-in.o
> >>> drivers/power/pmic/built-in.o drivers/serial/built-in.o
> >>> drivers/spi/built-in.o drivers/usb/eth/built-in.o
> >>> drivers/usb/gadget/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 fs/built-in.o
> >>> lib/built-in.o lib/libfdt/built-in.o net/built-in.o test/built-in.o
> >>> --end-group
> >>> /home/abuild/rpmbuild/BUILD/u-boot-2014.01/arch/arm/lib/eabi_compat.o
> >>> -L /usr/lib/gcc/armv7hl-suse-linux-gnueabi/4.8 -lgcc -Map u-boot.map -o
> >>> u-boot
> >>> [  178s] ld.bfd: u-boot: could not find output section .gnu.hash
> >>> [  178s] ld.bfd: final link failed: Nonrepresentable section on output
> >>> [  178s] Makefile:556: recipe for target 'u-boot' failed
> >>> [  178s] make: *** [u-boot] Error 1
> >>
> >> You are trying this with your codebase, right? If so, can you try and
> >> build vanilla v2014.01 with the exact same build environment?
> 
> Commented out all our patches at:
> https://build.opensuse.org/project/show/home:a_faerber:branches:Base:System
> 
> Failure of any sunxi-added targets is to be expected, of course.

Not sure I'm getting this: if you build vanilla v2014.01, there
shouldn't be any sunxi target built at all, should it?

> > If it
> >> builds fine, then can you tell me which changes your patch(es) made to
> >> linker scripts in your tree wrt 2014.01?
> > 
> > Ping.
> 
> I had previously pointed to our patches and explained that they do not
> touch on any existing linker scripts. They merely change CONFIG_
> options, tweak environment settings and add the sunxi targets.

I am not asking about changing linker scripts; I am asking about
trying your build environment on the pristine v2014.01 codebase, e.g.
build all mainline ARM targets with your toolchains.

> As for the other open question, OBS does not package build
> intermediaries of failed builds, so I'll need to reproduce it locally.
> ATM I'm lacking time because QEMU is about to enter Hard Freeze for 2.0.

Could you just run this in a git clone of U-Boot with v2014.01 checked
out?

	ARCH=arm CROSS_COMPILE=your-toolchain-prefix- ./MAKEALL -a arm

It would build all targets unattended using your toolchain (assuming it
is in your PATH of course). 

> Amicalement,
> Andreas

Amicalement,
-- 
Albert.