git.oblomov.eu Git - linux-2.6/blob - 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
  16 /* Architecture specific copy of original instruction*/
  17 struct arch_specific_insn {
  18         /* copy of the original instruction */
  19         kprobe_opcode_t insn[MAX_INSN_SIZE];
  20 };
  21
  22 struct prev_kprobe {
  23         struct kprobe *kp;
  24         unsigned int status;
  25         unsigned long orig_tnpc;
  26         unsigned long orig_tstate_pil;
  27 };
  28
  29 /* per-cpu kprobe control block */
  30 struct kprobe_ctlblk {
  31         unsigned long kprobe_status;
  32         unsigned long kprobe_orig_tnpc;
  33         unsigned long kprobe_orig_tstate_pil;
  34         long *jprobe_saved_esp;
  35         struct pt_regs jprobe_saved_regs;
  36         struct pt_regs *jprobe_saved_regs_location;
  37         struct sparc_stackf jprobe_saved_stack;
  38         struct prev_kprobe prev_kprobe;
  39 };
  40
  41 #ifdef CONFIG_KPROBES
  42 extern int kprobe_exceptions_notify(struct notifier_block *self,
  43                                     unsigned long val, void *data);
  44 #else                           /* !CONFIG_KPROBES */
  45 static inline int kprobe_exceptions_notify(struct notifier_block *self,
  46                                            unsigned long val, void *data)
  47 {
  48         return 0;
  49 }
  50 #endif
  51
  52 #endif /* _SPARC64_KPROBES_H */