[OE-core] [PATCH 01/42] gcc: Add gcc6 recipes

[Bruce Ashfield]

On 2016-06-02 3:15 PM, Paul Eggleton wrote:
> On Thu, 02 Jun 2016 18:05:35 Martin Jansa wrote:
>> On Wed, Jun 01, 2016 at 10:23:35AM +1200, Paul Eggleton wrote:
>>> On Wed, 01 Jun 2016 10:20:23 Paul Eggleton wrote:
>>>> On Tue, 31 May 2016 11:12:21 Jussi Kukkonen wrote:
>>>>> On 11 May 2016 at 20:35, Khem Raj <raj.khem at gmail.com> wrote:
>>>>>> +#BASEURI ?= "${GNU_MIRROR}/gcc/gcc-${PV}/gcc-${PV}.tar.bz2"
>>>>>> +BASEURI ?= "git://
>>>>>> github.com/gcc-mirror/gcc;branch=gcc-6-branch;protocol=git"
>>>>>
>>>>> I guess this is where git2_github.com.gcc-mirror.gcc.tar.gz download
>>>>> comes from? It increased the size of my downloads-directory by >30% --
>>>>> and I must have quite a bit of old junk in that directory already.
>>>>>
>>>>> Is there no other solution to this than a 2.5G git copy (honest
>>>>> question, I don't know gcc)?
>>>>
>>>> We went down this road before and it wasn't great for users. There is at
>>>> least a tarball for 6.1, we'd presumably need some patches on top of
>>>> that (~43 if we were to simply take what's in the gcc-6-branch between
>>>> 6.1 and bd9a826, minus the "daily bumps").
>>>
>>> Perhaps that was a little unclear - when I say "we went down this road
>>> before" I'm agreeing with Jussi - we pointed to a git branch in a
>>> previous release with the same resulting huge download for everyone,
>>> something I think we should avoid if at all possible.
>>
>> Maybe it's biggest but at least there is only one copy of it:
>>
>> top 10 in my downloads (archives and then git clones).
>>
>> 823M    /OE/downloads/git2_git.yoctoproject.org.linux-yocto-3.14.git.tar.gz
>> 831M    /OE/downloads/git2_git.yoctoproject.org.linux-yocto-3.10.git.tar.gz
>> 893M    /OE/downloads/git2_git.yoctoproject.org.linux-yocto-3.17.git.tar.gz
>> 934M    /OE/downloads/git2_git.yoctoproject.org.linux-yocto-3.19.git.tar.gz
>> 969M    /OE/downloads/git2_git.yoctoproject.org.linux-yocto-4.1.git.tar.gz
>> 1.2G    /OE/downloads/git2_git.yoctoproject.org.linux-yocto-dev.git.tar.gz
>>
>> 2.4G    /OE/downloads/git2_github.com.gcc-mirror.gcc.tar.gz
>>
>> 854M    /OE/downloads/git2/github.com.qtproject.qtwebengine-chromium.git
>>
>> 877M    /OE/downloads/git2/git.yoctoproject.org.linux-yocto-3.10.git
>> 900M    /OE/downloads/git2/git.yoctoproject.org.linux-yocto-3.14.git
>> 921M    /OE/downloads/git2/git.yoctoproject.org.linux-yocto-3.17.git
>> 964M    /OE/downloads/git2/git.yoctoproject.org.linux-yocto-3.19.git
>> 999M    /OE/downloads/git2/git.yoctoproject.org.linux-yocto-4.1.git
>> 1.3G    /OE/downloads/git2/git.yoctoproject.org.linux-yocto-dev.git
>> 2.3G    /OE/downloads/git2/git.yoctoproject.org.linux-yocto-4.4.git
>
> No argument from me there - it does seem a little wasteful given that there
> must be a huge overlap between those repos.

In other build systems, I've simply been able to reference a common
repository for the majority of the blobs. That isn't an option with
oe/bitbake (as far as I know).

We could also do shallow clones, but I'm also unsure of how well that
is supported.

With the amount of series that are completely rebased and dynamic in
content, the trees do need to be separate per version. It becomes
completely un-bisectable and maintainable any other way.

Bruce

>
> Cheers,
> Paul
>