1 #ifndef __ASM_SH_KPROBES_H 2 #define __ASM_SH_KPROBES_H 3 4 #include <asm-generic/kprobes.h> 5 6 #define BREAKPOINT_INSTRUCTION 0xc33a 7 8 #ifdef CONFIG_KPROBES 9 10 #include <linux/types.h> 11 #include <linux/ptrace.h> 12 13 typedef insn_size_t kprobe_opcode_t; 14 15 #define MAX_INSN_SIZE 16 16 #define MAX_STACK_SIZE 64 17 #define MIN_STACK_SIZE(ADDR) (((MAX_STACK_SIZE) < \ 18 (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR))) \ 19 ? (MAX_STACK_SIZE) \ 20 : (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR))) 21 22 #define flush_insn_slot(p) do { } while (0) 23 #define kretprobe_blacklist_size 0 24 25 struct kprobe; 26 27 void arch_remove_kprobe(struct kprobe *); 28 void kretprobe_trampoline(void); 29 void jprobe_return_end(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 unsigned long jprobe_saved_r15; 46 struct pt_regs jprobe_saved_regs; 47 kprobe_opcode_t jprobes_stack[MAX_STACK_SIZE]; 48 struct prev_kprobe prev_kprobe; 49 }; 50 51 extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr); 52 extern int kprobe_exceptions_notify(struct notifier_block *self, 53 unsigned long val, void *data); 54 extern int kprobe_handle_illslot(unsigned long pc); 55 #else 56 57 #define kprobe_handle_illslot(pc) (-1) 58 59 #endif /* CONFIG_KPROBES */ 60 #endif /* __ASM_SH_KPROBES_H */ 61