From 1ca97bb541a1f5a735e697a8bba763cde3aab452 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 18 Nov 2012 12:50:10 -0500 Subject: new helper: current_user_stack_pointer() Cross-architecture equivalent of rdusp(); default is user_stack_pointer(current_pt_regs()) - that works for almost all platforms that have usp saved in pt_regs. The only exception from that is ia64 - we want memory stack, not the backing store for register one. Signed-off-by: Al Viro --- arch/h8300/include/asm/ptrace.h | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/h8300') diff --git a/arch/h8300/include/asm/ptrace.h b/arch/h8300/include/asm/ptrace.h index 7468589a128b..6183371d0c93 100644 --- a/arch/h8300/include/asm/ptrace.h +++ b/arch/h8300/include/asm/ptrace.h @@ -63,6 +63,7 @@ struct pt_regs { #define current_pt_regs() ((struct pt_regs *) \ (THREAD_SIZE + (unsigned long)current_thread_info()) - 1) #define signal_pt_regs() ((struct pt_regs *)current->thread.esp0) +#define current_user_stack_pointer() rdusp() #endif /* __KERNEL__ */ #endif /* __ASSEMBLY__ */ #endif /* _H8300_PTRACE_H */ -- cgit v1.2.3