| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | /* written by Philipp Rumpf, Copyright (C) 1999 SuSE GmbH Nuernberg |
| 3 | ** Copyright (C) 2000 Grant Grundler, Hewlett-Packard |
| 4 | */ |
| 5 | #ifndef _PARISC_PTRACE_H |
| 6 | #define _PARISC_PTRACE_H |
| 7 | |
| 8 | #include <uapi/asm/ptrace.h> |
| 9 | |
| 10 | |
| 11 | #define task_regs(task) ((struct pt_regs *) ((char *)(task) + TASK_REGS)) |
| 12 | |
| 13 | #define arch_has_single_step() 1 |
| 14 | #define arch_has_block_step() 1 |
| 15 | |
| 16 | /* XXX should we use iaoq[1] or iaoq[0] ? */ |
| 17 | #define user_mode(regs) (((regs)->iaoq[0] & 3) ? 1 : 0) |
| 18 | #define user_space(regs) (((regs)->iasq[1] != 0) ? 1 : 0) |
| 19 | #define instruction_pointer(regs) ((regs)->iaoq[0] & ~3) |
| 20 | #define user_stack_pointer(regs) ((regs)->gr[30]) |
| 21 | unsigned long profile_pc(struct pt_regs *); |
| 22 | |
| 23 | static inline unsigned long regs_return_value(struct pt_regs *regs) |
| 24 | { |
| 25 | return regs->gr[28]; |
| 26 | } |
| 27 | |
| 28 | static inline void instruction_pointer_set(struct pt_regs *regs, |
| 29 | unsigned long val) |
| 30 | { |
| 31 | regs->iaoq[0] = val; |
| 32 | regs->iaoq[1] = val + 4; |
| 33 | } |
| 34 | |
| 35 | /* Query offset/name of register from its name/offset */ |
| 36 | extern int regs_query_register_offset(const char *name); |
| 37 | extern const char *regs_query_register_name(unsigned int offset); |
| 38 | #define MAX_REG_OFFSET (offsetof(struct pt_regs, ipsw)) |
| 39 | |
| 40 | #define kernel_stack_pointer(regs) ((regs)->gr[30]) |
| 41 | |
| 42 | static inline unsigned long regs_get_register(struct pt_regs *regs, |
| 43 | unsigned int offset) |
| 44 | { |
| 45 | if (unlikely(offset > MAX_REG_OFFSET)) |
| 46 | return 0; |
| 47 | return *(unsigned long *)((unsigned long)regs + offset); |
| 48 | } |
| 49 | |
| 50 | unsigned long regs_get_kernel_stack_nth(struct pt_regs *regs, unsigned int n); |
| 51 | int regs_within_kernel_stack(struct pt_regs *regs, unsigned long addr); |
| 52 | |
| 53 | #endif |