On Tuesday 25 October 2005 01:47, Andy wrote: > Hi Paolo, thanks for your reply!
> > But the solution is easy: clean your kernel tree and start over, adding > > to all > > commands SUBARCH=i386. On a recent enough kernel (and 2.6.13.4 is surely > > recent enough) this will produce a 32-bit fully working executable, which > > will run your 32bit root FS. > OK, when I try "make linux ARCH=um SUBARCH=i386", the build fails quite > early with the following: > CC arch/um/sys-i386/stub_segv.o > In file included from /usr/include/asm/sigcontext.h:7, > from arch/um/sys-i386/stub_segv.c:7: > /usr/include/asm-i386/sigcontext.h:18: error: redefinition of 'struct > _fpreg' > /usr/include/asm-i386/sigcontext.h:23: error: redefinition of 'struct > _fpxreg' > /usr/include/asm-i386/sigcontext.h:29: error: redefinition of 'struct > _xmmreg' > /usr/include/asm-i386/sigcontext.h:33: error: redefinition of 'struct > _fpstate' > /usr/include/asm-i386/sigcontext.h:57: error: redefinition of 'struct > sigcontext' > make[1]: *** [arch/um/sys-i386/stub_segv.o] Error 1 > make: *** [arch/um/sys-i386] Error 2 Ok, this is a "glibc/x86_64" headers bug. The attached patch should fix it (received two days ago the same report from another user). > Step 6 of part 2.1 of the UML HOWTO > (http://user-mode-linux.sourceforge.net/UserModeLinux-HOWTO-2.html#ss2.1) > says: > "Make sure that you don't build this kernel in /usr/src/linux. On some > distributions, /usr/include/asm is a link into this pool. The user-mode > build changes the other end of that link, and things that include > <asm/anything.h> stop compiling." > Is this what I'm experiencing? No. I've never* seen a real distro having that config - distro makers were burned enough. * I've started using Linux around 2.4.19, less than 4 years ago IIRC. > I'm running 'make' in a temp directory, is > that what it means by "don't build this kernel in /usr/src/linux"? Any idea > how to resolve this? -- Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!". Paolo Giarrusso, aka Blaisorblade (Skype ID "PaoloGiarrusso", ICQ 215621894) http://www.user-mode-linux.org/~blaisorblade
Index: linux-2.6.13/arch/um/sys-i386/stub_segv.c =================================================================== --- linux-2.6.13.orig/arch/um/sys-i386/stub_segv.c +++ linux-2.6.13/arch/um/sys-i386/stub_segv.c @@ -4,7 +4,6 @@ */ #include <signal.h> -#include <asm/sigcontext.h> #include <asm/unistd.h> #include "uml-config.h" #include "sysdep/sigcontext.h"
