building for mips target glibc-headers target

[Marc Karasek]

Not to go off on a tangent, but...

I am curious about your statement that gcc3.4.x will not compile kernel 2.4.x properly or apps for it? 

The reason I am asking is we are currently trying to move to a new cross-compiler for MIPs and need to be able to support 2.4.18 as well as 2.6.x.  

Marc

-----Original Message-----
From: Arno Schuring [mailto:aelschuring@hotmail.com]
Sent: Tuesday, April 12, 2005 5:06 AM
To: Daniel Laird; dank@kegel.com
Cc: crossgcc@sources.redhat.com
Subject: Re: building for mips target glibc-headers target




> So if i understand this properly.
>
> I can patch my crosstool with the sanitized headers patch
> I can then download this and save it somewhere so get&patch does not get 
> it
> I should then run corsstool as usual with the SANITIZED_LINUX_DIR variable 
> set

LINUX_SANITIZED_HEADER_DIR :)

Other than that, you are correct. (remark #2 is a matter of choice, though. 
getandpatch should be able to download it)

> I should still let the install-glibc-headers section in the crosstool.sh 
> run

Glibc-headers and kernel-headers are complementary, so yes you should leave 
it in. However there is a parallel discussion going on here about whether we 
need that separate glibc-headers step. Apparently in some cases it is 
possible to build a core-gcc without the glibc-headers.

>when it finishes I should have a toolchain with the following
> binutils 2.15.96
> glibc 2.3.4
> gcc 3.4.3
>
> I can then use this toolchain to build a 2.6.11.6 kernel for my target

Short answer: yes
Long answer:
Any 2.6.x kernel really. If you would have used gcc-3.3.x you could also 
have built a linux-2.4.x kernel with the same toolchain. Building the kernel 
is not the greatest issue. But (and please someone correct me if I'm wrong) 
the programs you compile with this toolchain will not run under a 2.4 
kernel. The libc version and kernel headers version mainly affect on what 
system(s) your programs will run, not what you can or cannot compile with 
it.

Arno


  np: Dream Theater - The Great Debate 

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