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 kretprobe_blacklist_size 0
  14
  15 #define arch_remove_kprobe(p)   do {} while (0)
  16
  17 #define ARCH_SUPPORTS_KRETPROBES
  18
  19 #define flush_insn_slot(p)              \
  20 do {    flushi(&(p)->ainsn.insn[0]);    \
  21         flushi(&(p)->ainsn.insn[1]);    \
  22 } while (0)
  23
  24 void kretprobe_trampoline(void);
  25
  26 /* Architecture specific copy of original instruction*/
  27 struct arch_specific_insn {
  28         /* copy of the original instruction */
  29         kprobe_opcode_t insn[MAX_INSN_SIZE];
  30 };
  31
  32 struct prev_kprobe {
  33         struct kprobe *kp;
  34         unsigned long status;
  35         unsigned long orig_tnpc;
  36         unsigned long orig_tstate_pil;
  37 };
  38
  39 /* per-cpu kprobe control block */
  40 struct kprobe_ctlblk {
  41         unsigned long kprobe_status;
  42         unsigned long kprobe_orig_tnpc;
  43         unsigned long kprobe_orig_tstate_pil;
  44         struct pt_regs jprobe_saved_regs;
  45         struct prev_kprobe prev_kprobe;
  46 };
  47
  48 extern int kprobe_exceptions_notify(struct notifier_block *self,
  49                                     unsigned long val, void *data);
  50 extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
  51 #endif /* _SPARC64_KPROBES_H */