From mboxrd@z Thu Jan  1 00:00:00 1970
From: Bin Meng <bmeng.cn@gmail.com>
Date: Tue, 5 Jan 2016 12:08:24 +0800
Subject: [U-Boot] Pull request: u-boot-net
In-Reply-To: <20160104142425.GC4093@bill-the-cat>
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Hi Tom,

On Mon, Jan 4, 2016 at 10:24 PM, Tom Rini <trini@konsulko.com> wrote:
> On Mon, Jan 04, 2016 at 04:31:05PM +0800, Bin Meng wrote:
> [snip]
>> $ ./install.sh -d /share/toolchain/eldk-5.6 -s toolchain -r - -a i686
>> powerpc-4xx
>> *** Installing ./targets/powerpc-4xx/eldk-eglibc-i686-powerpc-toolchain-5.6.sh
>>     into /share/toolchain/eldk-5.6/powerpc-4xx
>> tar: ./sysroots: Cannot mkdir: Read-only file system
> [snip]
>> Lots of 'Cannot mkdir: No such file or directory' message are shown on
>> the console. I am pretty sure I have RW rights on the
>> /share/toolchain/eldk-5.6 directory. Anything I am missing here?
>
> Well, please confirm that you can write to /sysroots/ :)  IIRC the
> installer doesn't invoke sudo by itself, btw..

The install.sh prompts ./sysroots/, not /sysroots/. ./sysroots/ should
point to the installation root where I definitely have the write
permission.

Today I switched to another machine with a Ubuntu 12.04, and with the
same iso and command I installed ELDK successfully without any error
message like "Cannot mkdir: Read-only file system". But when I used
the ELDK toolchain to build U-Boot iocon, I got:

/buildarea1/bmeng/eldk-5.6/powerpc-4xx/sysroots/i686-eldk-linux/usr/bin/powerpc-linux/powerpc-linux-ld.bfd
  -m32 -melf32ppclinux -g -Ttext 0x40000 -o
examples/standalone/hello_world -e hello_world
examples/standalone/hello_world.o examples/standalone/libstubs.o -L .
-lgcc
/buildarea1/bmeng/eldk-5.6/powerpc-4xx/sysroots/i686-eldk-linux/usr/bin/powerpc-linux/powerpc-linux-ld.bfd:
cannot find -lgcc
make[2]: *** [examples/standalone/hello_world] Error 1
make[1]: *** [examples/standalone] Error 2
make: *** [examples] Error 2

It did not help whether I just source
"environment-setup-ppc440e-linux" in the ELDK installation tree, or
just simply "export CROSS_COMPILE=path/to/ELDK/toolchain" before
building U-Boot.

Regards,
Bin