kprobes: support kretprobe blacklist
[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 kretprobe_blacklist_size 0
14
15 #define arch_remove_kprobe(p)   do {} while (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 */