[yocto] toolchain with big symbolic links?

[Mark Hatle]

I've seen issues in the past where long symlinks have caused problems.  It's
either a length limitation in the filesystem or Linux itself.  I never bothered
to track it down.

The way I resolved it was to switch from absolute links to relative.. but I'm
not sure that is possible in the first example below.. but the subsequent ones
it likely is.

If you have a simple way to reproduce it (i.e. configuration files, etc) please
open a bug on the bugzilla.yoctoproject.org and include the filesystem type,
host system type and the configuration or steps you used to reproduce this.  (Or
alternatively if you come up with a solution -- a patch set..)

--Mark

On 11/23/10 7:09 PM, João Henrique Freitas wrote:
> Hi,
> 
> I am using yocto 0.9 release and trying to generate my own meta-toolchain.
> 
> With toolchain from yocto:
> 
> joaohf at joaohf-desktop:~/Downloads$ ls
> /opt/poky/sysroots/x86_64-pokysdk-linux/usr/libexec/armv5te-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/4.5.0/
> -l
> total 30920
> lrwxrwxrwx 1 1006 users      100 2010-11-23 21:18 ar ->
> /opt/poky/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-ar
> lrwxrwxrwx 1 1006 users      100 2010-11-23 21:18 as ->
> /opt/poky/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-as
> -rwxr-xr-x 1 1006 users 10387701 2010-10-24 20:53 cc1
> -rwxr-xr-x 1 1006 users 11216826 2010-10-24 20:53 cc1plus
> -rwxr-xr-x 1 1006 users   157274 2010-10-24 20:53 collect2
> lrwxrwxrwx 1 1006 users      100 2010-11-23 21:18 cpp ->
> /opt/poky/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-cp
> lrwxrwxrwx 1 1006 users      100 2010-11-23 21:18 g77 ->
> /opt/poky/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-g7
> lrwxrwxrwx 1 1006 users      100 2010-11-23 21:18 gcc ->
> /opt/poky/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-gc
> lrwxrwxrwx 1 1006 users      100 2010-11-23 21:18 gfortran ->
> /opt/poky/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-gf
> lrwxrwxrwx 1 1006 users      100 2010-11-23 21:18 ld ->
> /opt/poky/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-ld
> -rwxr-xr-x 1 1006 users  9803466 2010-10-24 20:53 lto1
> -rwxr-xr-x 1 1006 users    36707 2010-10-24 20:53 lto-wrapper
> lrwxrwxrwx 1 1006 users      100 2010-11-23 21:18 nm ->
> /opt/poky/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-nm
> lrwxrwxrwx 1 1006 users      100 2010-11-23 21:18 objcopy ->
> /opt/poky/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-ob
> lrwxrwxrwx 1 1006 users      100 2010-11-23 21:18 objdump ->
> /opt/poky/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-ob
> lrwxrwxrwx 1 1006 users      100 2010-11-23 21:18 ranlib ->
> /opt/poky/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-ra
> lrwxrwxrwx 1 1006 users      100 2010-11-23 21:18 strip ->
> /opt/poky/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-poky-linux-gnueabi/arm-poky-linux-gnueabi-st
> 
> 
> Same broken symbolic links.
> 
> So, I start my own toolchain....
> 
> Don't work, TARGET_VENDOR = "-tropico"
> 
> joaohf at joaohf-desktop:/opt/via/sysroots/x86_64-pokysdk-linux/usr/libexec/armv5te-tropico-linux-gnueabi/gcc/arm-tropico-linux-gnueabi/4.5.0$
> ls -l
> total 30904
> lrwxrwxrwx 1 joaohf joaohf      100 2010-11-23 21:04 as ->
> /opt/via/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-tropico-linux-gnueabi/arm-tropico-linux-gnuea
> -rwxr-xr-x 1 joaohf joaohf 10383493 2010-11-23 19:57 cc1
> -rwxr-xr-x 1 joaohf joaohf 11212618 2010-11-23 19:57 cc1plus
> -rwxr-xr-x 1 joaohf joaohf   157274 2010-11-23 19:57 collect2
> lrwxrwxrwx 1 joaohf joaohf      100 2010-11-23 21:04 cpp ->
> /opt/via/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-tropico-linux-gnueabi/arm-tropico-linux-gnuea
> lrwxrwxrwx 1 joaohf joaohf      100 2010-11-23 21:04 g77 ->
> /opt/via/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-tropico-linux-gnueabi/arm-tropico-linux-gnuea
> lrwxrwxrwx 1 joaohf joaohf      100 2010-11-23 21:04 gcc ->
> /opt/via/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-tropico-linux-gnueabi/arm-tropico-linux-gnuea
> lrwxrwxrwx 1 joaohf joaohf      100 2010-11-23 21:04 gfortran ->
> /opt/via/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-tropico-linux-gnueabi/arm-tropico-linux-gnuea
> lrwxrwxrwx 1 joaohf joaohf      100 2010-11-23 21:04 ld ->
> /opt/via/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-tropico-linux-gnueabi/arm-tropico-linux-gnuea
> -rwxr-xr-x 1 joaohf joaohf  9798490 2010-11-23 19:57 lto1
> -rwxr-xr-x 1 joaohf joaohf    36707 2010-11-23 19:57 lto-wrapper
> lrwxrwxrwx 1 joaohf joaohf      100 2010-11-23 21:04 nm ->
> /opt/via/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-tropico-linux-gnueabi/arm-tropico-linux-gnuea
> lrwxrwxrwx 1 joaohf joaohf      100 2010-11-23 21:04 objcopy ->
> /opt/via/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-tropico-linux-gnueabi/arm-tropico-linux-gnuea
> lrwxrwxrwx 1 joaohf joaohf      100 2010-11-23 21:04 objdump ->
> /opt/via/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-tropico-linux-gnueabi/arm-tropico-linux-gnuea
> lrwxrwxrwx 1 joaohf joaohf      100 2010-11-23 21:04 ranlib ->
> /opt/via/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-tropico-linux-gnueabi/arm-tropico-linux-gnuea
> lrwxrwxrwx 1 joaohf joaohf      100 2010-11-23 21:04 strip ->
> /opt/via/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-tropico-linux-gnueabi/arm-tropico-linux-gnuea
> 
> 
> Works, TARGET_VENDOR = "-tp"
> 
> joaohf at joaohf-desktop:/opt/via/sysroots$ ls
> x86_64-pokysdk-linux/usr/libexec/armv5te-tp-linux-gnueabi/gcc/arm-tp-linux-gnueabi/4.5.0/
> -l
> total 30896
> lrwxrwxrwx 1 joaohf joaohf       95 2010-11-23 23:00 ar ->
> /opt/via/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-tp-linux-gnueabi/arm-tp-linux-gnueabi-ar
> lrwxrwxrwx 1 joaohf joaohf       95 2010-11-23 23:00 as ->
> /opt/via/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-tp-linux-gnueabi/arm-tp-linux-gnueabi-as
> -rwxr-xr-x 1 joaohf joaohf 10380613 2010-11-23 22:56 cc1
> -rwxr-xr-x 1 joaohf joaohf 11209354 2010-11-23 22:56 cc1plus
> -rwxr-xr-x 1 joaohf joaohf   157274 2010-11-23 22:56 collect2
> lrwxrwxrwx 1 joaohf joaohf       96 2010-11-23 23:00 cpp ->
> /opt/via/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-tp-linux-gnueabi/arm-tp-linux-gnueabi-cpp
> lrwxrwxrwx 1 joaohf joaohf       96 2010-11-23 23:00 g77 ->
> /opt/via/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-tp-linux-gnueabi/arm-tp-linux-gnueabi-g77
> lrwxrwxrwx 1 joaohf joaohf       96 2010-11-23 23:00 gcc ->
> /opt/via/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-tp-linux-gnueabi/arm-tp-linux-gnueabi-gcc
> lrwxrwxrwx 1 joaohf joaohf      100 2010-11-23 23:00 gfortran ->
> /opt/via/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-tp-linux-gnueabi/arm-tp-linux-gnueabi-gfortra
> lrwxrwxrwx 1 joaohf joaohf       95 2010-11-23 23:00 ld ->
> /opt/via/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-tp-linux-gnueabi/arm-tp-linux-gnueabi-ld
> -rwxr-xr-x 1 joaohf joaohf  9797242 2010-11-23 22:56 lto1
> -rwxr-xr-x 1 joaohf joaohf    36707 2010-11-23 22:56 lto-wrapper
> lrwxrwxrwx 1 joaohf joaohf       95 2010-11-23 23:00 nm ->
> /opt/via/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-tp-linux-gnueabi/arm-tp-linux-gnueabi-nm
> lrwxrwxrwx 1 joaohf joaohf      100 2010-11-23 23:00 objcopy ->
> /opt/via/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-tp-linux-gnueabi/arm-tp-linux-gnueabi-objcopy
> lrwxrwxrwx 1 joaohf joaohf      100 2010-11-23 23:00 objdump ->
> /opt/via/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-tp-linux-gnueabi/arm-tp-linux-gnueabi-objdump
> lrwxrwxrwx 1 joaohf joaohf       99 2010-11-23 23:00 ranlib ->
> /opt/via/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-tp-linux-gnueabi/arm-tp-linux-gnueabi-ranlib
> lrwxrwxrwx 1 joaohf joaohf       98 2010-11-23 23:00 strip ->
> /opt/via/sysroots/x86_64-pokysdk-linux/usr/bin/armv5te-tp-linux-gnueabi/arm-tp-linux-gnueabi-strip
> 
> 
> 
> But g77 and gfortran is broken.
> 
> 
> Is any issue with symbolic link? I am using ubuntu 10.04 and ext4 filesystem.
> 
> Thanks.
> 
>