Re: Building 100 kernels; we suck at dependencies and drown in warnings

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On 2/26/06, Diego Calleja <[email protected]> wrote:
> El Sun, 26 Feb 2006 17:21:17 +0100,
> Jesper Juhl <[email protected]> escribió:
>
>
> >       95 kernels were build with 'make randconfig'.
> >       1 kernel was build with the config I normally use for my own box.
> >       1 kernel was build from 'make defconfig'.
> >       1 kernel was build from 'make allmodconfig'.
> >       1 kernel was build from 'make allnoconfig'.
> >       1 kernel was build from 'make allyesconfig'.
>
>
> I wonder if it'd be useful a "make compiletest" which developers
> are told to run before submitting changes - a target that would compile

As a general thing? No, I don't think so. When you've made a change
you generally want to compile test a very specific part of the kernel
(the one containing your change), not the entire kernel.

> a kernel with allyesconfig, another with allnoconfig, allmodconfig
> and a couple of randconfig, with the time it could improve this
> kind of errors.
>
> (I tried to do it myself but I don't know swahili well enought to
> hack Makefiles)
>
No need to hack makefiles, for example, all I did to build my 100
kernels was this simple shell script that I then left to run for a few
hours :


#!/bin/bash

make clean
zcat /proc/config.gz > .config
make oldconfig
cp .config normal.config
make -j 5 2>&1 | tee normal.log

make clean
make defconfig
cp .config def.config
make -j 5 2>&1 | tee def.log

make clean
make allmodconfig
cp .config allmod.config
make -j 5 2>&1 | tee allmod.log

make clean
make allnoconfig
cp .config allno.config
make -j 5 2>&1 | tee allno.log

make clean
make allyesconfig
cp .config allyes.config
make -j 5 2>&1 | tee allyes.log

for i in `seq 1 95`; do make clean ; make randconfig ; cp .config
rand$i.config ; make -j 5 2>&1 | tee rand$i.log ; done


no tricky Makefile hackery there, just a little shell scripting magic.


--
Jesper Juhl <[email protected]>
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