On Wed, Aug 5, 2009 at 8:44 PM, H M Thalib<hmthalib@xxxxxxxxx> wrote: > Hi Manish, > > Manish Katiyar wrote: >> >> On Wed, Aug 5, 2009 at 4:46 PM, Flavio<fbcyborg@xxxxxxxxx> wrote: >>> >>> 2009/8/5 Manish Katiyar <mkatiyar@xxxxxxxxx>: >>>> >>>> My question is how do people build modules which are specific to a >>>> particular architecture on UML ? Is it possible ? >>> >>> Sure! >>> Are you compiling the kernel modules from the host system? If not, >>> try to do it. >>> The exact procedure is the following: >>> # mount -o loop rootfs loop_dir/ >>> # cd /uml/src/linux >>> # make modules ARCH=um >>> # make modules_install INSTALL_MOD_PATH=/uml/loop_dir ARCH=um >>> # umount /uml/loop_dir >>> >>> Then, boot the UML again. >> >> Hi Flavio, >> >> I have done that step and my UML kernel boots fine. My question is in >> UML environment what will the ARCH resolve to ? will it be um or x86 ? >> >> Thanks - >> Manish >> >> >>> Flavio >>> >> >> >> > > It will um. Actualy UML is a port of the Linux kernel as a normal Intel > Linux process. So that would mean that any new kernel module that I compile has to be prefixed with ARCH=um ??? because my kernel source resides on host and has been configured as um. If I compile any x86 module from UML it will fail because the asm directory in kernel source points to asm-um and not asm-x86. Isn't it ?? Or I am just talking senseless :-( ... Below is how my directory structures look like. -bash-3.2# ls -l /lib/modules/2.6.30.4/source/include/ total 120 -rw-r--r-- 1 mkatiyar 5573 218 Jul 30 18:34 Kbuild drwxr-xr-x 3 mkatiyar 5573 4096 Jul 30 18:34 acpi lrwxrwxrwx 1 mkatiyar 5573 6 Aug 5 06:16 asm -> asm-um -bash-3.2# ls -l /lib/modules/2.6.30.4/ total 64 lrwxrwxrwx 1 root root 42 Aug 4 13:36 build -> /home/mkatiyar/personal/uml/linux-2.6.30.4 drwxr-xr-x 6 root root 4096 Aug 5 06:18 kernel -rw-r--r-- 1 root root 265 Aug 5 11:01 modules.alias .............. ............... -rw-r--r-- 1 root root 189 Aug 5 11:01 modules.usbmap lrwxrwxrwx 1 root root 42 Aug 5 06:18 source -> /home/mkatiyar/personal/uml/linux-2.6.30.4 -bash-3.2# ls -l /home/mkatiyar total 0 lrwxrwxrwx 1 root root 32 Aug 4 14:48 personal -> /mnt/host/home/mkatiyar/personal -bash-3.2# mount /dev/ubda on / type auto (rw) none on /proc type proc (rw) none on /dev/pts type devpts (rw,gid=5,mode=620) none on /mnt/host type hostfs (rw) Thanks - Manish > > -- > Thanks & Regards, > H M Thalib. > -- Thanks - Manish -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
