4 * Kernel Probes (KProbes)
5 * include/asm-ia64/kprobes.h
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
21 * Copyright (C) IBM Corporation, 2002, 2004
22 * Copyright (C) Intel Corporation, 2005
24 * 2005-Apr Rusty Lynch <rusty.lynch@intel.com> and Anil S Keshavamurthy
25 * <anil.s.keshavamurthy@intel.com> adapted from i386
27 #include <linux/types.h>
28 #include <linux/ptrace.h>
29 #include <asm/break.h>
31 #define BREAK_INST (long)(__IA64_BREAK_KPROBE << 6)
33 typedef struct _bundle {
35 unsigned long long template : 5;
36 unsigned long long slot0 : 41;
37 unsigned long long slot1_p0 : 64-46;
40 unsigned long long slot1_p1 : 41 - (64-46);
41 unsigned long long slot2 : 41;
43 } __attribute__((__aligned__(16))) bundle_t;
45 #define JPROBE_ENTRY(pentry) (kprobe_opcode_t *)pentry
47 #define SLOT0_OPCODE_SHIFT (37)
48 #define SLOT1_p1_OPCODE_SHIFT (37 - (64-46))
49 #define SLOT2_OPCODE_SHIFT (37)
51 #define INDIRECT_CALL_OPCODE (1)
52 #define IP_RELATIVE_CALL_OPCODE (5)
53 #define IP_RELATIVE_BRANCH_OPCODE (4)
54 #define IP_RELATIVE_PREDICT_OPCODE (7)
55 #define LONG_BRANCH_OPCODE (0xC)
56 #define LONG_CALL_OPCODE (0xD)
58 typedef struct kprobe_opcode {
67 /* Architecture specific copy of original instruction*/
68 struct arch_specific_insn {
69 /* copy of the instruction to be emulated */
71 #define INST_FLAG_FIX_RELATIVE_IP_ADDR 1
72 #define INST_FLAG_FIX_BRANCH_REG 2
73 unsigned long inst_flag;
74 unsigned short target_br_reg;
77 /* ia64 does not need this */
78 static inline void jprobe_return(void)
83 extern int kprobe_exceptions_notify(struct notifier_block *self,
84 unsigned long val, void *data);
85 #else /* !CONFIG_KPROBES */
86 static inline int kprobe_exceptions_notify(struct notifier_block *self,
87 unsigned long val, void *data)
92 #endif /* _ASM_KPROBES_H */