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x86: also define AT_VECTOR_SIZE_ARCH

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The patch introducing this left out x86-64, despite it also having
extra entries.

[ mingo@elte.hu: re-merged this to after the unification patches. ]

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Jan Beulich 2008-01-30 13:31:24 +01:00 committed by Ingo Molnar
parent e94271017f
commit ded9aa0db8
1 changed files with 8 additions and 2 deletions
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10
include/asm-x86/system.h
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@ -9,8 +9,14 @@
#include <linux/kernel.h>
#include <linux/irqflags.h>
/* entries in ARCH_DLINFO: */
#ifdef CONFIG_IA32_EMULATION
# define AT_VECTOR_SIZE_ARCH 2
#else
# define AT_VECTOR_SIZE_ARCH 1
#endif
#ifdef CONFIG_X86_32
#define AT_VECTOR_SIZE_ARCH 2 /* entries in ARCH_DLINFO */
struct task_struct; /* one of the stranger aspects of C forward declarations */
extern struct task_struct *FASTCALL(__switch_to(struct task_struct *prev,
@ -56,7 +62,7 @@ extern struct task_struct *FASTCALL(__switch_to(struct task_struct *prev,
/* Save restore flags to clear handle leaking NT */
#define switch_to(prev, next, last) \
asm volatile(SAVE_CONTEXT \
asm volatile(SAVE_CONTEXT \
"movq %%rsp,%P[threadrsp](%[prev])\n\t" /* save RSP */ \
"movq %P[threadrsp](%[next]),%%rsp\n\t" /* restore RSP */ \
"call __switch_to\n\t" \