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 */ 58