| /* SPDX-License-Identifier: GPL-2.0 */ |
| // Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd. |
| |
| #ifndef __ASM_CSKY_PTRACE_H |
| #define __ASM_CSKY_PTRACE_H |
| |
| #include <uapi/asm/ptrace.h> |
| #include <asm/traps.h> |
| #include <linux/types.h> |
| |
| #ifndef __ASSEMBLY__ |
| |
| #define PS_S 0x80000000 /* Supervisor Mode */ |
| |
| #define arch_has_single_step() (1) |
| #define current_pt_regs() \ |
| ({ (struct pt_regs *)((char *)current_thread_info() + THREAD_SIZE) - 1; }) |
| |
| #define user_stack_pointer(regs) ((regs)->usp) |
| |
| #define user_mode(regs) (!((regs)->sr & PS_S)) |
| #define instruction_pointer(regs) ((regs)->pc) |
| #define profile_pc(regs) instruction_pointer(regs) |
| |
| static inline bool in_syscall(struct pt_regs const *regs) |
| { |
| return ((regs->sr >> 16) & 0xff) == VEC_TRAP0; |
| } |
| |
| static inline void forget_syscall(struct pt_regs *regs) |
| { |
| regs->sr &= ~(0xff << 16); |
| } |
| |
| static inline unsigned long regs_return_value(struct pt_regs *regs) |
| { |
| return regs->a0; |
| } |
| |
| #endif /* __ASSEMBLY__ */ |
| #endif /* __ASM_CSKY_PTRACE_H */ |
