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
14typedef 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
26struct kprobe;
27
28void arch_remove_kprobe(struct kprobe *);
29void kretprobe_trampoline(void);
30void jprobe_return_end(void);
31
32/* Architecture specific copy of original instruction*/
33struct arch_specific_insn {
34	/* copy of the original instruction */
35	kprobe_opcode_t insn[MAX_INSN_SIZE];
36};
37
38struct prev_kprobe {
39	struct kprobe *kp;
40	unsigned long status;
41};
42
43/* per-cpu kprobe control block */
44struct kprobe_ctlblk {
45	unsigned long kprobe_status;
46	unsigned long jprobe_saved_r15;
47	struct pt_regs jprobe_saved_regs;
48	kprobe_opcode_t jprobes_stack[MAX_STACK_SIZE];
49	struct prev_kprobe prev_kprobe;
50};
51
52extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
53extern int kprobe_exceptions_notify(struct notifier_block *self,
54				    unsigned long val, void *data);
55extern int kprobe_handle_illslot(unsigned long pc);
56#else
57
58#define kprobe_handle_illslot(pc)	(-1)
59
60#endif /* CONFIG_KPROBES */
61#endif /* __ASM_SH_KPROBES_H */

 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
14typedef 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
26struct kprobe;
27
28void arch_remove_kprobe(struct kprobe *);
29void __kretprobe_trampoline(void);
 
30
31/* Architecture specific copy of original instruction*/
32struct arch_specific_insn {
33	/* copy of the original instruction */
34	kprobe_opcode_t insn[MAX_INSN_SIZE];
35};
36
37struct prev_kprobe {
38	struct kprobe *kp;
39	unsigned long status;
40};
41
42/* per-cpu kprobe control block */
43struct kprobe_ctlblk {
44	unsigned long kprobe_status;
 
 
 
45	struct prev_kprobe prev_kprobe;
46};
47
48extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
 
 
49extern int kprobe_handle_illslot(unsigned long pc);
50#else
51
52#define kprobe_handle_illslot(pc)	(-1)
53
54#endif /* CONFIG_KPROBES */
55#endif /* __ASM_SH_KPROBES_H */