Re: cross-compiling kernel

[Valery Ushakov <uwe%stderr.spb.ru@localhost>]

On Fri, Aug 04, 2017 at 14:18:36 +0200, Riccardo Mottola wrote:

> Is building an x86 a "full cross compile"? I suppose yes and I
> followef the NetBSD build for sparc, just with x86.

Yes, it's full cross compilation.


> I want to use the standard kernel GENERIC, thus I did:
> 
> ./build.sh -U -m i386 -u tools
> 
> I don't get a full x86 toolchain though, in /usr/obj I find:
> $ ls /usr/obj/
> sys                                     tools
> tooldir.NetBSD-8.99.1-amd64
> 
> I expected instead something like:
> /usr/obj/tooldir.NetBSD-8.99.1-i386
[...]
> ===> TOOLDIR path: /usr/src/obj/tooldir.NetBSD-8.99.1-amd64
[...]
> so it is expected apparently.

TOOLDIR defaults to tooldir.${host_ostype}, so it reflects your os.


> although I find inside multiple binaries, e.g. :
> /usr/obj/tooldir.NetBSD-8.99.1-amd64/bin/nbmake
> /usr/obj/tooldir.NetBSD-8.99.1-amd64/bin/nbmake-amd64
> /usr/obj/tooldir.NetBSD-8.99.1-amd64/bin/nbmake-i386
> 
> I thus tried:
> $ /usr/obj/tooldir.NetBSD-8.99.1-amd64/bin/nbmake-i386 depend
> 
> but this fails:
> /usr/src/obj/tooldir.NetBSD-8.99.1-amd64/bin/nbgenassym:
> /usr/src/obj/tooldir.NetBSD-8.99.1-amd64/bin/i486--netbsdelf-gcc: not found
> 
> I have several i486 tools, but not all:
> /usr/obj/tooldir.NetBSD-8.99.1-amd64/bin/i486--netbsdelf-dbsym
> /usr/obj/tooldir.NetBSD-8.99.1-amd64/bin/i486--netbsdelf-fdisk
> /usr/obj/tooldir.NetBSD-8.99.1-amd64/bin/i486--netbsdelf-install
> /usr/obj/tooldir.NetBSD-8.99.1-amd64/bin/i486--netbsdelf-mdsetimage

This is strange.  Anything in your /etc/mk.conf or environment?  You
can look at the /usr/obj/tooldir.NetBSD-8.99.1-amd64/bin/nbmake-i386
make wrapper script and check what does it set TOOLDIR too.

-uwe