include/asm-sparc64/kprobes.h

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