Hi Manish Katiyar wrote: > On Wed, Aug 5, 2009 at 8:44 PM, H M Thalib<hmtha...@gmail.com> wrote: >> Hi Manish, >> >> Manish Katiyar wrote: >>> On Wed, Aug 5, 2009 at 4:46 PM, Flavio<fbcyb...@gmail.com> wrote: >>>> 2009/8/5 Manish Katiyar <mkati...@gmail.com>: >>>>> 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 :-( ... >
Yes, When you compile don't forget to specify the ARCH=um. If you didn't specify the ARCH then kernel build system will configure it for the host/development system mostly your x86 PC. Mostly it modules should fail. but I am not sure. > 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 & Regards, H M Thalib. ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
