release/src-rt-6.x/linux/linux-2.6/include/asm-sparc64/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 JPROBE_ENTRY(pentry)    (kprobe_opcode_t *)pentry
  14 #define arch_remove_kprobe(p)   do {} while (0)
  15 #define  ARCH_INACTIVE_KPROBE_COUNT 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 /* Architecture specific copy of original instruction*/
  23 struct arch_specific_insn {
  24         /* copy of the original instruction */
  25         kprobe_opcode_t insn[MAX_INSN_SIZE];
  26 };
  27
  28 struct prev_kprobe {
  29         struct kprobe *kp;
  30         unsigned long status;
  31         unsigned long orig_tnpc;
  32         unsigned long orig_tstate_pil;
  33 };
  34
  35 /* per-cpu kprobe control block */
  36 struct kprobe_ctlblk {
  37         unsigned long kprobe_status;
  38         unsigned long kprobe_orig_tnpc;
  39         unsigned long kprobe_orig_tstate_pil;
  40         struct pt_regs jprobe_saved_regs;
  41         struct prev_kprobe prev_kprobe;
  42 };
  43
  44 extern int kprobe_exceptions_notify(struct notifier_block *self,
  45                                     unsigned long val, void *data);
  46 extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
  47 #endif /* _SPARC64_KPROBES_H */