Re: [rock-user] Some help needed with compiling an Opteron build environment

hi michael,

Michael Obster schrieb:
> Where is this switch? I only can set PC-Compatible and the Athlon 
> Opteron but not if the resulting kernel should be a 32-bit or 64-bit in 
> "make menuconfig". Or do I need to compile the kernel in the 
> cross-compile environment?

of course, you need to compile a 64 bit kernel with a 64 bit compiler.

the rock linux config file misc/config/config-200-crosstools.in offers
this ('Cross Toolchain Creation'). just add x86_64 to the list of
supported targets. in line 30 in that file.

however you achieve it, get your hands on a cross compiler, and then
call make menuconfig with the CROSS_COMPILE and ARCH parameter.

for example, if your compiler is called x86_64-unknown-linux-gnu-gcc it
would read

make ARCH=x86_64 CROSS_COMPILE=x86_64-unknown-linux-gnu- menuconfig

and

make ARCH=x86_64 CROSS_COMPILE=x86_64-unknown-linux-gnu- vmlinux

et alas.

good luck,

fake