Re: [PATCH 1/1] gcc-cross: aviod creating invalid symlinks

[Richard Purdie <richard.purdie@linuxfoundation.org>]

On Wed, 2012-03-14 at 17:13 +0800, Robert Yang wrote:
> There are several invalid symlinks in gcc-cross-initial,
> gcc-cross-intermediate and gcc-cross, these cause the error:(56 errors)
> 
> tmp/work/i586-poky-linux/gcc-cross-initial-4.6.3+svnr184847-r23/temp/log.do_populate_sysroot:
> log.do_populate_sysroot:grep: /path/to/invalid/symlink: No such file or directory
> 
> Avoid creating invalid symlinks would fix this problem.
> 
> Use the:
> [ ! -e file ] || do_something
> But not use:
> [ -e file ] && do_something
> is because that if the "file" doesn't exist, then the whole statement
> would return false, and bitbake treats this an error, so use the "||" to
> let it always be true.
> 
> [YOCTO #2095]
> 
> Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
> ---
>  .../gcc/gcc-cross-intermediate.inc                 |    3 ++-
>  meta/recipes-devtools/gcc/gcc-package-cross.inc    |    6 ++++--
>  2 files changed, 6 insertions(+), 3 deletions(-)
> 
> diff --git a/meta/recipes-devtools/gcc/gcc-cross-intermediate.inc b/meta/recipes-devtools/gcc/gcc-cross-intermediate.inc
> index ea105e6..87d11ab 100644
> --- a/meta/recipes-devtools/gcc/gcc-cross-intermediate.inc
> +++ b/meta/recipes-devtools/gcc/gcc-cross-intermediate.inc
> @@ -51,7 +51,8 @@ do_install () {
>  	dest=${D}${libexecdir}/gcc/${TARGET_SYS}/${BINV}/
>  	install -d $dest
>  	for t in ar as ld nm objcopy objdump ranlib strip g77 gcc cpp gfortran; do
> -		ln -sf ${BINRELPATH}/${TARGET_PREFIX}$t $dest$t
> +		[ ! -e ${BINRELPATH}/${TARGET_PREFIX}$t ] || \
> +	        ln -sf ${BINRELPATH}/${TARGET_PREFIX}$t $dest$t
>  	done
>  }
>  
> diff --git a/meta/recipes-devtools/gcc/gcc-package-cross.inc b/meta/recipes-devtools/gcc/gcc-package-cross.inc
> index e32412c..3d52d23 100644
> --- a/meta/recipes-devtools/gcc/gcc-package-cross.inc
> +++ b/meta/recipes-devtools/gcc/gcc-package-cross.inc
> @@ -19,8 +19,10 @@ do_install () {
>  	dest=${D}${libexecdir}/gcc/${TARGET_SYS}/${BINV}/
>  	install -d $dest
>  	for t in ar as ld nm objcopy objdump ranlib strip g77 gcc cpp gfortran; do
> -		ln -sf ${BINRELPATH}/${TARGET_PREFIX}$t $dest$t
> -		ln -sf ${BINRELPATH}/${TARGET_PREFIX}$t ${dest}${TARGET_PREFIX}$t
> +        if [ -e ${BINRELPATH}/${TARGET_PREFIX}$t ]; then
> +		    ln -sf ${BINRELPATH}/${TARGET_PREFIX}$t $dest$t
> +		    ln -sf ${BINRELPATH}/${TARGET_PREFIX}$t ${dest}${TARGET_PREFIX}$t
> +        fi
>  	done
>  
>  	# Remove things we don't need but keep share/java


I've had to revert this, it totally broke the mips/ppc/arm toolchains.
See the failures on the autobuilder, e.g.
http://autobuilder.yoctoproject.org:8010/builders/nightly-arm/builds/338/steps/shell_33/logs/stdio in eglibc-initial. The problem is that the location we're symlinking to may not be installed yet. For example, gcc provides "${TARGET_PREFIX}gcc" but it won't be installed at the location we point at until after gcc's populate_sysroot function runs. The tests you're using are therefore not adding as many symlinks as we need.

Cheers,

Richard