Compiling kernel module on A780, problem with linux/slab.h?

[zbojnik83]

Hi,

I've been playing around with my A780 and trying to get a kernel module compiled on there. When I try to use kmalloc()/kfree() and include <linux/slab.h>, I get the following error at compilation:

In file included from /home/tom/a780/e680-a780/e680-linux/include/linux/slab.h:14,
                 from myModule.c:24:
/home/tom/a780/e680-a780/e680-linux/include/linux/mm.h:485: error: syntax error before "phys_addr_t"
make: *** [myModule.o] Error 1

I'm using lsb's cross-comiplation toolkit and include the kernel headers with -isystem /home/tom/a780/e680-a780/e680-linux/include

where e680-a780 is the tarball downloaded from opensource.motorola.com .

kprintf()'s and such work fine.

Any help is appreciated. Thanks!

[zbojnik83]

I was able to get this resolved by including <asm-generic/mmu.h> where phys_addr_t is defined.

However, it seems that the issue was mixing of kernel headers from the 2.4.20 montavista source and 2.4.26 source included with ezx-crosstool. I also get a kernel version of 2.4.26 in the module and I can't seem to tell ezx-crosstool not to use the 2.4.26 source.

Anybody have issues with ezx-crosstool like this before? Does anybody know if the tool is somehow kernel version specific?

Thanks in advance for any help.

[blackhawk]

Forgot how I did it but I use Motorola's 2.4.20 ezx kernel source when building ezx-crosstool. If we need to build this kernel, we have to apply a patch. If not wrong this patch made by Motorolafans member pnail and ready around here or maybe mkezx source from www.mkezx.org will help you with this problem.