arch/alpha/include/asm/ptrace.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASMAXP_PTRACE_H
   3 #define _ASMAXP_PTRACE_H
   4
   5 #include <uapi/asm/ptrace.h>
   6
   7
   8 #define arch_has_single_step()          (1)
   9 #define user_mode(regs) (((regs)->ps & 8) != 0)
  10 #define instruction_pointer(regs) ((regs)->pc)
  11 #define profile_pc(regs) instruction_pointer(regs)
  12 #define current_user_stack_pointer() rdusp()
  13
  14 #define task_pt_regs(task) \
  15   ((struct pt_regs *) (task_stack_page(task) + 2*PAGE_SIZE) - 1)
  16
  17 #define current_pt_regs() \
  18   ((struct pt_regs *) ((char *)current_thread_info() + 2*PAGE_SIZE) - 1)
  19 #define signal_pt_regs current_pt_regs
  20
  21 #define force_successful_syscall_return() (current_pt_regs()->r0 = 0)
  22
  23 static inline unsigned long regs_return_value(struct pt_regs *regs)
  24 {
  25         return regs->r0;
  26 }
  27
  28 #endif