[yocto] Toolchain rework, call for testing

[Martin Jansa]

On Thu, Aug 16, 2012 at 09:47:37PM -0700, Khem Raj wrote:
> Hi All
> 
> Recently glibc build has been simplified upstream. It has dropped the
> dependency on libgcc_s and libgcc_eh for building glibc itself.
> This means that we can simplify our toolchain bootstrap a bit by
> dropping 1 of the 3 cross gcc build stages. We do not need
> gcc-cross-intermediate
> anymore. This should bring some build time reduction and simplify the
> bootstrap. I have a series of patches which I have tested
> by building core-image-minimal and meta-toolchain for all supported
> qemu architectures and also uclibc/eglibc both
> but it needs a lot more testing therefore I am calling out wider
> audience for help in testing it out.
> 
> The branch is
> 
> http://git.openembedded.org/openembedded-core-contrib/log/?h=kraj/toolchain-rework

eglibc fails to build in incremental build

| arm-oe-linux-gnueabi-gcc  -march=armv4t -marm -mthumb-interwork -mtune=arm920t --sysroot=/OE/shr-core/tmp-eglibc/sysroots/om-gta02-tcbootstrap   -nostdlib -nostartfiles -r -o /OE/shr-core/tmp-eglibc/work/armv4t-oe-linux-gnueabi/eglibc-2.16-r6+svnr19922/build-arm-oe-linux-gnueabi/libc_pic.os \
|  -Wl,-d -Wl,--whole-archive /OE/shr-core/tmp-eglibc/work/armv4t-oe-linux-gnueabi/eglibc-2.16-r6+svnr19922/build-arm-oe-linux-gnueabi/libc_pic.a -o /OE/shr-core/tmp-eglibc/work/armv4t-oe-linux-gnueabi/eglibc-2.16-r6+svnr19922/build-arm-oe-linux-gnueabi/libc_pic.os
| arm-oe-linux-gnueabi-gcc  -march=armv4t -marm -mthumb-interwork -mtune=arm920t --sysroot=/OE/shr-core/tmp-eglibc/sysroots/om-gta02-tcbootstrap   -nostdlib -nostartfiles -r -o /OE/shr-core/tmp-eglibc/work/armv4t-oe-linux-gnueabi/eglibc-2.16-r6+svnr19922/build-arm-oe-linux-gnueabi/elf/librtld.map.o '-Wl,-(' /OE/shr-core/tmp-eglibc/work/armv4t-oe-linux-gnueabi/eglibc-2.16-r6+svnr19922/build-arm-oe-linux-gnueabi/elf/dl-allobjs.os /OE/shr-core/tmp-eglibc/work/armv4t-oe-linux-gnueabi/eglibc-2.16-r6+svnr19922/build-arm-oe-linux-gnueabi/libc_pic.a -lgcc '-Wl,-)' -Wl,-Map,/OE/shr-core/tmp-eglibc/work/armv4t-oe-linux-gnueabi/eglibc-2.16-r6+svnr19922/build-arm-oe-linux-gnueabi/elf/librtld.mapT
| /OE/shr-core/tmp-eglibc/sysroots/x86_64-linux/usr/libexec/armv4t-oe-linux-gnueabi.gcc-cross-initial/gcc/arm-oe-linux-gnueabi/4.7.2/ld: cannot find -lgcc
| collect2: error: ld returned 1 exit status
| make[2]: *** [/OE/shr-core/tmp-eglibc/work/armv4t-oe-linux-gnueabi/eglibc-2.16-r6+svnr19922/build-arm-oe-linux-gnueabi/elf/librtld.map] Error 1
| make[2]: *** Waiting for unfinished jobs....
| make[2]: Leaving directory `/OE/shr-core/tmp-eglibc/work/armv4t-oe-linux-gnueabi/eglibc-2.16-r6+svnr19922/eglibc-2_16/libc/elf'
| make[1]: *** [elf/subdir_lib] Error 2
| make[1]: Leaving directory `/OE/shr-core/tmp-eglibc/work/armv4t-oe-linux-gnueabi/eglibc-2.16-r6+svnr19922/eglibc-2_16/libc'

Maybe it's because 
http://git.openembedded.org/openembedded-core/commit/?id=30617bde61a3b0a0944b49a0c9fb7159dacbb19f
is missing PR bump and gcc wasn't rebuilt before eglibc upgrade (OEBasic not OEBasicHash here).

Cheers,
-- 
Martin 'JaMa' Jansa     jabber: Martin.Jansa at gmail.com
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