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Commit d046ff8b authored by H. J. Lu's avatar H. J. Lu Committed by H. Peter Anvin
Browse files

x86-64: Add prototype for old_rsp to a header file 



So far this has only been used in process_64.c, but the x32 code will
need it in additional code.

Signed-off-by: default avatarH. Peter Anvin <hpa@zytor.com>
parent 0953f65d

arch/x86/include/asm/processor.h

+6 −0
Original line number Diff line number Diff line
@@ -948,6 +948,12 @@ extern unsigned long thread_saved_pc(struct task_struct *tsk); 


#define task_pt_regs(tsk)	((struct pt_regs *)(tsk)->thread.sp0 - 1)

extern unsigned long KSTK_ESP(struct task_struct *task);



/*

 * User space RSP while inside the SYSCALL fast path

 */

DECLARE_PER_CPU(unsigned long, old_rsp);



#endif /* CONFIG_X86_64 */



extern void start_thread(struct pt_regs *regs, unsigned long new_ip,