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 regs_return_value(_regs) ((_regs)->regs[0]) 20#define flush_insn_slot(p) do { } while (0) 21#define kretprobe_blacklist_size 0 22 23struct kprobe; 24 25void arch_remove_kprobe(struct kprobe *); 26void kretprobe_trampoline(void); 27void jprobe_return_end(void); 28 29/* Architecture specific copy of original instruction*/ 30struct arch_specific_insn { 31 /* copy of the original instruction */ 32 kprobe_opcode_t insn[MAX_INSN_SIZE]; 33}; 34 35struct prev_kprobe { 36 struct kprobe *kp; 37 unsigned long status; 38}; 39 40/* per-cpu kprobe control block */ 41struct kprobe_ctlblk { 42 unsigned long kprobe_status; 43 unsigned long jprobe_saved_r15; 44 struct pt_regs jprobe_saved_regs; 45 kprobe_opcode_t jprobes_stack[MAX_STACK_SIZE]; 46 struct prev_kprobe prev_kprobe; 47}; 48 49extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr); 50extern int kprobe_exceptions_notify(struct notifier_block *self, 51 unsigned long val, void *data); 52extern int kprobe_handle_illslot(unsigned long pc); 53#else 54 55#define kprobe_handle_illslot(pc) (-1) 56 57#endif /* CONFIG_KPROBES */ 58#endif /* __ASM_SH_KPROBES_H */ 59