| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | // Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd. |
| 3 | |
| 4 | #ifndef __ASM_CSKY_PTRACE_H |
| 5 | #define __ASM_CSKY_PTRACE_H |
| 6 | |
| 7 | #include <uapi/asm/ptrace.h> |
| 8 | #include <asm/traps.h> |
| 9 | #include <linux/types.h> |
| 10 | |
| 11 | #ifndef __ASSEMBLY__ |
| 12 | |
| 13 | #define PS_S 0x80000000 /* Supervisor Mode */ |
| 14 | |
| 15 | #define arch_has_single_step() (1) |
| 16 | #define current_pt_regs() \ |
| 17 | ({ (struct pt_regs *)((char *)current_thread_info() + THREAD_SIZE) - 1; }) |
| 18 | |
| 19 | #define user_stack_pointer(regs) ((regs)->usp) |
| 20 | |
| 21 | #define user_mode(regs) (!((regs)->sr & PS_S)) |
| 22 | #define instruction_pointer(regs) ((regs)->pc) |
| 23 | #define profile_pc(regs) instruction_pointer(regs) |
| 24 | |
| 25 | static inline bool in_syscall(struct pt_regs const *regs) |
| 26 | { |
| 27 | return ((regs->sr >> 16) & 0xff) == VEC_TRAP0; |
| 28 | } |
| 29 | |
| 30 | static inline void forget_syscall(struct pt_regs *regs) |
| 31 | { |
| 32 | regs->sr &= ~(0xff << 16); |
| 33 | } |
| 34 | |
| 35 | static inline unsigned long regs_return_value(struct pt_regs *regs) |
| 36 | { |
| 37 | return regs->a0; |
| 38 | } |
| 39 | |
| 40 | #endif /* __ASSEMBLY__ */ |
| 41 | #endif /* __ASM_CSKY_PTRACE_H */ |