Dear Graeme Russ,
Am 19.10.2011 00:33, schrieb Graeme Russ:
Hi Wolfgang,
On Wed, Oct 19, 2011 at 7:07 AM, Wolfgang Denk wd@denx.de wrote:
Dear Mike Frysinger,
In message 201110181301.57390.vapier@gentoo.org you wrote:
<snip>
And then, for compatibility testings, I want to compile all this with ELDK 4.2. Or ELDK 4.1. Or CodeSourcery xxx. Or...
I see no clean way to implement this - ok, we could provide an external tool / data base that maps boards or SoC names to CROSS_COMPILE/ARCH/PATH settings, which each user has to configure for his own set of tool chain settings.
IMHO, for running MAKEALL, I see no problem with this. If we had a 'toolchains.cfg' file which could be a format like:
#ARCH SOC BOARD TOOLCHAIN x86 sc520 - /path/to/gcc
This would give new developers a head-up as to what the defacto toolchains are
That is OK.
We can then have 'toolchains.cfg.local' which is added to .gitignore so individual users can override the toolchain. But all patch submissions must pass MAKEALL without using toolchains.cfg.local (something like 'MAKEALL --no-custom-toolchains'. The first thing MAKEALL should do is scan toolchains.cfg (and toolchains.cfg.local if required) for each selected arch and check that each toolchain is available and spit out 'toolchain not available' warnings.
But I don't like to force the users to have _all_ toolchains installed on their work station. I think the current procedure to MAKEALL _at least_ two different arches is enough. Furthermore I don't like to force the users to have a specific toolchain for submitting a patch to the list. I think it is a benefit to have a lot of different toolchains on different host systems building the code, but one should see the build-environment in MAKEALL output to be able to distinguish between error from patch or error from toolchain.
All we need to do then is setup our build machines to do an automated git-pull and MAKEALL
It is a good idea for some automated build process which runs in the backyard and spit out some error/warning messages if one patch does break the build unattended (i.e. the two arches MAKEALL did fail).
best regards
Andreas Bießmann