Hi Michi, On Mon, May 24, 2010 at 10:29 PM, Michael Blizek <michi1@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > Hi! > > On 22:53 Mon 24 May , Mulyadi Santosa wrote: >> On Mon, May 24, 2010 at 18:03, Michael Blizek >> <michi1@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote: >> > Hi! >> > >> > I have a system with 32 bit userspace and a 64 bit kernel. This runs fine, but >> > I ran into a problem with user mode linux. The build command "ARCH=um make >> > linux" builds a 64 bit kernel. >> >> How about editing the CC variable in main Makefile and change that to >> "gcc32" (IIRC, that points to 32 bit version of gcc)? > > I do not know what you mean by 32 bit gcc version. Gcc is 32 bit, just as the > rest of the system except the (host) kernel. However this gcc seems to do a > cross compilation to 64 bit. Usually you do this by e.g. "ARCH=i386 make > bzImage" or "ARCH=x86_64 make bzImage", but the ARCH variable must be set to > um... A quick look at the Makefile for UML suggests that SUBARCH=i386 and ARCH=um should build UML for 32 bit. hope this helps, -Joel -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
