4ee189a926
2.6.15-mm1 caused kernel-offsets.c to stop compiling with a syntax error in a header. The problem was with KBUILD_BASENAME, which didn't get a definition with the by-hand compilation in the main UML Makefile. This was OK before since the expansion was syntactically the same as the KBUILD_BASENAME token. With -mm1, the expansion is now a quote-delimited string, so there needs to be a definition of it. Since kernel-offsets.c is basically the same as other arches' asm-offsets.c, and those seem to build OK, this patch turns kernel-offsets.c into asm-offsets.c. kernel-offsets.c is in arch/um/sys-$(SUBARCH), i.e. sys-i386 and sys-x86_64, while kbuild expects it to be in arch/um/kernel. kernel-offsets.c is moved to arch/um/include/sysdep-$(SUBARCH)/kernel-offsets.h, which is included by arch/um/kernel/asm-offsets.c. With that, include/asm-um/asm-offsets.h is generated automatically. kernel-offsets.h continues to exist because it needs to be accessible to userspace UML code, and include/asm-um isn't. So, a symlink is made from arch/um/include/kernel-offsets.h to include/asm-um/asm-offsets.h. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
24 lines
586 B
C
24 lines
586 B
C
#include <linux/stddef.h>
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#include <linux/sched.h>
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#include <linux/elf.h>
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#define DEFINE(sym, val) \
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asm volatile("\n->" #sym " %0 " #val : : "i" (val))
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#define STR(x) #x
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#define DEFINE_STR(sym, val) asm volatile("\n->" #sym " " STR(val) " " #val: : )
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#define BLANK() asm volatile("\n->" : : )
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#define OFFSET(sym, str, mem) \
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DEFINE(sym, offsetof(struct str, mem));
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void foo(void)
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{
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OFFSET(HOST_TASK_DEBUGREGS, task_struct, thread.arch.debugregs);
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#ifdef CONFIG_MODE_TT
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OFFSET(HOST_TASK_EXTERN_PID, task_struct, thread.mode.tt.extern_pid);
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#endif
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#include <common-offsets.h>
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}
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