linux/arch/m68k/include/asm/ptrace.h
Al Viro 1ca97bb541 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 <viro@zeniv.linux.org.uk>
2012-12-19 18:07:39 -05:00

28 lines
604 B
C

#ifndef _M68K_PTRACE_H
#define _M68K_PTRACE_H
#include <uapi/asm/ptrace.h>
#ifndef __ASSEMBLY__
#ifndef PS_S
#define PS_S (0x2000)
#define PS_M (0x1000)
#endif
#define user_mode(regs) (!((regs)->sr & PS_S))
#define instruction_pointer(regs) ((regs)->pc)
#define profile_pc(regs) instruction_pointer(regs)
#define current_pt_regs() \
(struct pt_regs *)((char *)current_thread_info() + THREAD_SIZE) - 1
#define current_user_stack_pointer() rdusp()
#define arch_has_single_step() (1)
#ifdef CONFIG_MMU
#define arch_has_block_step() (1)
#endif
#endif /* __ASSEMBLY__ */
#endif /* _M68K_PTRACE_H */