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 9 typedef 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 22 struct kprobe; 23 24 void arch_remove_kprobe(struct kprobe *); 25 void kretprobe_trampoline(void); 26 void jprobe_return_end(void); 27 28 /* Architecture specific copy of original instruction*/ 29 struct arch_specific_insn { 30 /* copy of the original instruction */ 31 kprobe_opcode_t insn[MAX_INSN_SIZE]; 32 }; 33 34 struct prev_kprobe { 35 struct kprobe *kp; 36 unsigned long status; 37 }; 38 39 /* per-cpu kprobe control block */ 40 struct 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 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