From: Jeff Dike <jdike@addtoit.com>

uml-stop-saving-process-fp-state.patch broke the UML/x86_64 build.

On x86_64, sys/ptrace.h has to be included before asm/ptrace.h.
Otherwise, the defines in asm/ptrace.h will ruin the parse of
sys/ptrace.h -
    asm/ptrace.h:
	#define PTRACE_GETREGS            12

    sys/ptrace.h:
	enum __ptrace_request
	{
	...
	   PTRACE_GETREGS = 12,
	...
	}

Also, errno.h was missing.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/um/os-Linux/sys-x86_64/registers.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff -puN arch/um/os-Linux/sys-x86_64/registers.c~uml-stop-saving-process-fp-state-fix arch/um/os-Linux/sys-x86_64/registers.c
--- a/arch/um/os-Linux/sys-x86_64/registers.c~uml-stop-saving-process-fp-state-fix
+++ a/arch/um/os-Linux/sys-x86_64/registers.c
@@ -3,9 +3,10 @@
  * Licensed under the GPL
  */
 
+#include <errno.h>
+#include <sys/ptrace.h>
 #define __FRAME_OFFSETS
 #include <asm/ptrace.h>
-#include <sys/ptrace.h>
 #include "longjmp.h"
 #include "user.h"
 
_