1#ifndef __ASM_SH_KPROBES_H 2#define __ASM_SH_KPROBES_H 3 4#ifdef CONFIG_KPROBES 5 6#include <linux/types.h> 7#include <linux/ptrace.h> 8 9typedef insn_size_t kprobe_opcode_t; 10#define BREAKPOINT_INSTRUCTION 0xc33a 11 12#define MAX_INSN_SIZE 16 13#define MAX_STACK_SIZE 64 14#define MIN_STACK_SIZE(ADDR) (((MAX_STACK_SIZE) < \ 15 (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR))) \ 16 ? (MAX_STACK_SIZE) \ 17 : (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR))) 18 19#define flush_insn_slot(p) do { } while (0) 20#define kretprobe_blacklist_size 0 21 22struct kprobe; 23 24void arch_remove_kprobe(struct kprobe *); 25void kretprobe_trampoline(void); 26void jprobe_return_end(void); 27 28/* Architecture specific copy of original instruction*/ 29struct arch_specific_insn { 30 /* copy of the original instruction */ 31 kprobe_opcode_t insn[MAX_INSN_SIZE]; 32}; 33 34struct prev_kprobe { 35 struct kprobe *kp; 36 unsigned long status; 37}; 38 39/* per-cpu kprobe control block */ 40struct kprobe_ctlblk { 41 unsigned long kprobe_status; 42 unsigned long jprobe_saved_r15; 43 struct pt_regs jprobe_saved_regs; 44 kprobe_opcode_t jprobes_stack[MAX_STACK_SIZE]; 45 struct prev_kprobe prev_kprobe; 46}; 47 48extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr); 49extern int kprobe_exceptions_notify(struct notifier_block *self, 50 unsigned long val, void *data); 51extern 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