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
20#define force_successful_syscall_return() (current_pt_regs()->r0 = 0)
21
22static inline unsigned long regs_return_value(struct pt_regs *regs)
23{
24	return regs->r0;
25}
26
27#endif