I run an x86_64 kernel with i386 userspace (Ubuntu Dapper) and decided to try out UML today. I found that UML wasn't quite aware of biarch compilers (which Ubuntu i386 ships). A fix similar to what was done for x86_64 should probably be committed (see http://marc.theaimsgroup.com/?l=linux-kernel&m=113425940204010&w=2). Without the FLAGS changes, the build will fail at a number of places and without the LINK change, the final link will fail.
Signed-off-by: Nishanth Aravamudan <[EMAIL PROTECTED]> Index: linux-2.6.17/arch/um/Makefile-x86_64 =================================================================== --- linux-2.6.17.orig/arch/um/Makefile-x86_64 2006-06-20 17:24:29.000000000 -0400 +++ linux-2.6.17/arch/um/Makefile-x86_64 2006-06-29 10:36:18.000000000 -0400 @@ -6,9 +6,11 @@ START := 0x60000000 #We #undef __x86_64__ for kernelspace, not for userspace where #it's needed for headers to work! -CFLAGS += -U__$(SUBARCH)__ -fno-builtin -USER_CFLAGS += -fno-builtin +CFLAGS += -U__$(SUBARCH)__ -fno-builtin -m64 +USER_CFLAGS += -fno-builtin -m64 CHECKFLAGS += -m64 +AFLAGS += -m64 +LDFLAGS += -m elf_x86_64 ELF_ARCH := i386:x86-64 ELF_FORMAT := elf64-x86-64 @@ -16,3 +18,4 @@ ELF_FORMAT := elf64-x86-64 # Not on all 64-bit distros /lib is a symlink to /lib64. PLD is an example. LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib64 +LINK-y += -m64 Index: linux-2.6.17/arch/um/kernel/vmlinux.lds.S =================================================================== --- linux-2.6.17.orig/arch/um/kernel/vmlinux.lds.S 2005-08-28 19:41:01.000000000 -0400 +++ linux-2.6.17/arch/um/kernel/vmlinux.lds.S 2006-06-29 10:36:18.000000000 -0400 @@ -1,4 +1,6 @@ #include <linux/config.h> +/* in case the preprocessor is a 32bit one */ +#undef i386 #ifdef CONFIG_LD_SCRIPT_STATIC #include "uml.lds.S" #else Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ User-mode-linux-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
