Re: [PATCH] kbuild: Disallow GCC 4.1.0 / 4.1.1

Randy Dunlap
2009-01-02T18:29:59Z

Sam Ravnborg wrote:
> On Fri, Jan 02, 2009 at 10:04:27AM -0800, Linus Torvalds wrote:
>>
>> On Fri, 2 Jan 2009, Sam Ravnborg wrote:
>>> Bugger....
>>> Now I cannot do cross compile for: alpha, arm, m68k and sparc.
>>>
>>> Not that I actually try to run these beasts but just being able
>>> to do cross compile has served me well.
>> We _could_ make a "CONFIG_COMPILE_ONLY" check, but wouldn't it be even
>> nicer to make sure the cross-compiles are something that might actually be
>> expected to work?
>>
>> I realize that cross-tools tend to lag a bit - the pressure to maintain
>> them tends to be much lower - but I was sure we had somebody who did a
>> reasonable cross-compiler toolchain. Is gcc-4.1 really the most modern
>> thing that is easily available?
>
> Asked google and it found following page:
>
> http://www.kernel.org/pub/tools/crosstool/
>
> Architecuter OK? gcc version
> ---------------------------------
> alpha No gcc 4.0.2
> arm Yes gcc 3.4.5
> ia64 Yes gcc 3.4.5
> m68k Yes gcc 3.4.5
> mips Yes gcc 3.4.5
> sh4 Yes gcc 3.4.5
> sparc Yes gcc 3.4.5
> sparc64 Yes gcc 3.4.5
> x86_64 Yes gcc 3.4.5
>
>
> So from this list of tool chains we can continue to do cross builds
> of all except alpha.
> But the gcc version is getting ancient..
>
> Why it shall be so hard to do cross build toolchains is above my
> imagination but then I also never looked at what it involes.
>
> Added Vegard that maintain these pages.

I doubt that these are any more recent, but the filenames don't say:

http://userweb.kernel.org/~akpm/cross-compilers/

Yes, it is an ongoing problem.

--
~Randy