release/src-rt-6.x.4708/linux/linux-2.6.36/arch/sparc/include/asm/kprobes.h

   1 #ifndef _SPARC64_KPROBES_H
   2 #define _SPARC64_KPROBES_H
   3
   4 #include <linux/types.h>
   5 #include <linux/percpu.h>
   6
   7 typedef u32 kprobe_opcode_t;
   8
   9 #define BREAKPOINT_INSTRUCTION   0x91d02070 /* ta 0x70 */
  10 #define BREAKPOINT_INSTRUCTION_2 0x91d02071 /* ta 0x71 */
  11 #define MAX_INSN_SIZE 2
  12
  13 #define kretprobe_blacklist_size 0
  14
  15 #define arch_remove_kprobe(p)   do {} while (0)
  16
  17 #define flush_insn_slot(p)              \
  18 do {    flushi(&(p)->ainsn.insn[0]);    \
  19         flushi(&(p)->ainsn.insn[1]);    \
  20 } while (0)
  21
  22 void kretprobe_trampoline(void);
  23
  24 /* Architecture specific copy of original instruction*/
  25 struct arch_specific_insn {
  26         /* copy of the original instruction */
  27         kprobe_opcode_t insn[MAX_INSN_SIZE];
  28 };
  29
  30 struct prev_kprobe {
  31         struct kprobe *kp;
  32         unsigned long status;
  33         unsigned long orig_tnpc;
  34         unsigned long orig_tstate_pil;
  35 };
  36
  37 /* per-cpu kprobe control block */
  38 struct kprobe_ctlblk {
  39         unsigned long kprobe_status;
  40         unsigned long kprobe_orig_tnpc;
  41         unsigned long kprobe_orig_tstate_pil;
  42         struct pt_regs jprobe_saved_regs;
  43         struct prev_kprobe prev_kprobe;
  44 };
  45
  46 extern int kprobe_exceptions_notify(struct notifier_block *self,
  47                                     unsigned long val, void *data);
  48 extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
  49 #endif /* _SPARC64_KPROBES_H */