e9bb26f770eddcfd4288c01d247c5cb9a1a83cd8
[linux-2.6.git] / 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
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 extern int kprobe_exceptions_notify(struct notifier_block *self,
42                                     unsigned long val, void *data);
43 #endif /* _SPARC64_KPROBES_H */