On Wed, Jun 11, 2008 at 11:48:16AM -0400, Jeff Dike wrote:
> This patch obviously isn't usable for anyone else, but UML needs a
> hook or something to add libgcc and libc to the ld commands:
>
> Index: linux-2.6-git/scripts/link-vmlinux.sh
> ===================================================================
> --- linux-2.6-git.orig/scripts/link-vmlinux.sh 2008-06-11 11:26:07.000000000 -0400
> +++ linux-2.6-git/scripts/link-vmlinux.sh 2008-06-11 11:41:04.000000000 -0400
> @@ -122,7 +122,7 @@ fi
> # First stage of fully linked vmlinux
> tell LD ${VMLINUX}
> ${LD} ${LDFLAGS} ${LDFLAGS_vmlinux} -o ${VMLINUX} \
> - -T ${KBUILD_VMLINUX_LDS} vmlinux.o
> + -T ${KBUILD_VMLINUX_LDS} vmlinux.o `gcc -print-libgcc-file-name` -lc
>
> if [ "${CONFIG_KALLSYMS}" = "y" ]; then
>
> @@ -133,7 +133,8 @@ if [ "${CONFIG_KALLSYMS}" = "y" ]; then
> # link in kalll symbols
> tell LD vmlinux
> ${LD} ${LDFLAGS} ${LDFLAGS_vmlinux} -o vmlinux \
> - -T ${KBUILD_VMLINUX_LDS} vmlinux.o .tmp_kallsyms.o
> + -T ${KBUILD_VMLINUX_LDS} vmlinux.o .tmp_kallsyms.o \
> + `gcc -print-libgcc-file-name` -lc
> fi
>
> tell SYSMAP System.map
>
> This fixes the flood of undefined symbols, but I still get this on the
> link:
> ld: warning: Cannot create .note.gnu.build-id section, --build-id ignored.
> ld: warning: cannot find entry symbol _start; defaulting to 08056320
>
> And when I run the result, I get this, which I don't understand at
> all:
>
> -bash: ./uml/linux: /usr/lib/libc.so.1: bad ELF interpreter: No
> such file or directory
Thanks Jeff.
I will take an additional look tomorrow.
Sam
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