Cross compiling module

[Monthadar Al Jaberi]

On Mon, Nov 21, 2011 at 5:42 PM, Warner Losh <imp at bsdimp.com> wrote:
>
> On Nov 21, 2011, at 6:28 AM, Monthadar Al Jaberi wrote:
>
>> Hi!
>>
>> Not sure if this is the right place :)
>>
>> I have written a kernel module with the following Makefile:
>> .PATH:        ${.CURDIR}/src
>>
>> # Declare Name of kernel module
>> KMOD    = moduletest
>>
>> # Enumerate Source files for kernel module
>> SRCS    =  module.c
>>
>> # Include kernel module makefile
>> .include <bsd.kmod.mk>
>>
>> then
>> cd  /usr/src
>> make TARGET=mips TARGET_ARCH=mipseb buildenv
>
> I usually do
>
> make buildenv
> (puts you into a subshell)
> cd /root/mymodule
> make
>

I am sorry if I am wrong, but am I not doing the same thing as you? I
am also inside a subshell.

>> cd /root/mymodule
>> make
>>
>> but I get the following error:
>
> I'm surprised you got the mips compiler.  What's your environment look like?  What's @ pointing to?

@ -> /usr/src/sys
machine -> /usr/src/sys/mips/include

>
> Warner
>
>> Warning: Object directory not changed from original /root/mymodule
>> cc -O -pipe -G0 -Werror -D_KERNEL -DKLD_MODULE -nostdinc   -I. -I@
>> -I@/contrib/altq -finline-limit=8000
>> --param inline-unit-growth=100 --param large-function-growth=1000
>> -fno-common  -G0 -fno-pic -mno-abicalls
>> -mlong-calls  -msoft-float -ffreestanding -std=iso9899:1999 -Wall
>> -Wredundant-decls -Wnested-externs -Wstrict-prototypes
>>  -Wmissing-prototypes -Wpointer-arith -Winline -Wcast-qual  -Wundef
>> -Wno-pointer-sign -fformat-extensions  -Wmissing-include-dirs
>> -fdiagnostics-show-option -c /root/src/mymodule/src/module.c
>> In file included from ./machine/bus.h:76,
>>                 from /root/mymodule/module.c:57:
>> ./machine/_bus.h:37:26: error: opt_cputype.h: No such file or directory
>> *** Error code 1
>>
>> Stop in /root/mymodule.
>>
>>
>> $ which cc
>> /usr/obj/mips.mipseb/usr/src/tmp/usr/bin/cc
>>
>> $find /usr -name "opt_cputype.h"
>> ...
>> /usr/obj/mips.mipseb/usr/src/sys/RSPRO_NFS/opt_cputype.h
>>
>> if I add:
>> CFLAGS+=-I/usr/obj/mips.mipseb/usr/src/sys/RSPRO_NFS
>>
>> it works now, seems like I am missing something?
>>
>> br,
>>
>> --
>> Monthadar Al Jaberi
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>>
>>
>
>



-- 
Monthadar Al Jaberi