[OE-core] [PATCH 0/2] Use alternatives for all of binutils instead of -symlinks

[Mark Hatle]

On 10/16/13 11:48 AM, Saul Wold wrote:
>
> During MUT builds, we saw a failure with the toolchain
>
>
> | Computing transaction...error: Can't install
> binutils-cross-canadian-arm-2.23.2-r4 at i686_nativesdk: no package
> provides update-alternatives-cworth
> |
>
> Can be seen all architectures.

Sounds like the new code needs to be restricted to 'class-target'.

--Mark

>
> Sau!
>
>
>
> On 10/10/2013 01:06 PM, Peter Seebach wrote:
>> The original complaint that got me started on this was that someone
>> was using binutils on a target, and didn't have an ld command, so they
>> asked for it. We added binutils-symlinks, and that seemed to work, but
>> eventually we ran into a problem because "ar" and "strings" weren't
>> showing up.
>>
>> After some asking about as to why ar and strings might be omitted from
>> binutils, we concluded that it was probably because they were using
>> the alternatives mechanism. In a local branch, we experimented for a while
>> with just using that instead of the -symlinks package, and found that
>> it was overall better-behaved; in particular, it produces the desireable
>> result that you don't have to know about or add a "-symlinks" package
>> to use the utilities in the common case where you just install a package
>> and expect its binaries to show up. It also eliminates the odd special
>> case difference between ar/strings (which can be provided by busybox)
>> and the other utilities.
>>
>> This is implemented as two patches. The first switches to using the
>> alternatives mechanism, but leaves the alternatives in the -symlinks
>> package rather than in the base package. The second moves them into
>> the base package, and adds an RPROVIDES for the -symlinks name in
>> case anyone is using it.
>>
>> One caveat: This can produce warnings because the "embedspu" and "ld.gold"
>> binaries don't always exist, but they sometimes exist. I'm not sure whether
>> there's a good way to fix that...
>>
>> The following changes since commit 1149b1fef8912f77d971242dfec151fff5a3aa51:
>>
>>     build-appliance: Update SRCREV for release (2013-10-08 16:33:25 +0100)
>>
>> are available in the git repository at:
>>     git://git.yoctoproject.org/poky-contrib seebs/binutils-alternatives
>>     http://git.yoctoproject.org/cgit.cgi/poky-contrib/log/?h=seebs/binutils-alternatives
>>
>> Peter Seebach (2):
>>     Use alternatives for the binutils-symlinks package.
>>     Drop binutils-symlinks
>>
>>    meta/recipes-devtools/binutils/binutils.inc |   68 ++++++++++++++++-----------
>>    1 files changed, 40 insertions(+), 28 deletions(-)
>>
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>>
>>
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