| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef __ASM_SH_KPROBES_H |
| 3 | #define __ASM_SH_KPROBES_H |
| 4 | |
| 5 | #include <asm-generic/kprobes.h> |
| 6 | |
| 7 | #define BREAKPOINT_INSTRUCTION 0xc33a |
| 8 | |
| 9 | #ifdef CONFIG_KPROBES |
| 10 | |
| 11 | #include <linux/types.h> |
| 12 | #include <linux/ptrace.h> |
| 13 | |
| 14 | typedef insn_size_t kprobe_opcode_t; |
| 15 | |
| 16 | #define MAX_INSN_SIZE 16 |
| 17 | #define MAX_STACK_SIZE 64 |
| 18 | #define MIN_STACK_SIZE(ADDR) (((MAX_STACK_SIZE) < \ |
| 19 | (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR))) \ |
| 20 | ? (MAX_STACK_SIZE) \ |
| 21 | : (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR))) |
| 22 | |
| 23 | #define flush_insn_slot(p) do { } while (0) |
| 24 | #define kretprobe_blacklist_size 0 |
| 25 | |
| 26 | struct kprobe; |
| 27 | |
| 28 | void arch_remove_kprobe(struct kprobe *); |
| 29 | void kretprobe_trampoline(void); |
| 30 | |
| 31 | /* Architecture specific copy of original instruction*/ |
| 32 | struct arch_specific_insn { |
| 33 | /* copy of the original instruction */ |
| 34 | kprobe_opcode_t insn[MAX_INSN_SIZE]; |
| 35 | }; |
| 36 | |
| 37 | struct prev_kprobe { |
| 38 | struct kprobe *kp; |
| 39 | unsigned long status; |
| 40 | }; |
| 41 | |
| 42 | /* per-cpu kprobe control block */ |
| 43 | struct kprobe_ctlblk { |
| 44 | unsigned long kprobe_status; |
| 45 | struct prev_kprobe prev_kprobe; |
| 46 | }; |
| 47 | |
| 48 | extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr); |
| 49 | extern int kprobe_exceptions_notify(struct notifier_block *self, |
| 50 | unsigned long val, void *data); |
| 51 | extern int kprobe_handle_illslot(unsigned long pc); |
| 52 | #else |
| 53 | |
| 54 | #define kprobe_handle_illslot(pc) (-1) |
| 55 | |
| 56 | #endif /* CONFIG_KPROBES */ |
| 57 | #endif /* __ASM_SH_KPROBES_H */ |