1 files changed, 132 insertions, 0 deletions

diff --git a/arch/ia64/include/asm/kprobes.h b/arch/ia64/include/asm/kprobes.h
new file mode 100644
index 000000000000..dbf83fb28db3
--- /dev/null
+++ b/arch/ia64/include/asm/kprobes.h
@@ -0,0 +1,132 @@
+#ifndef _ASM_KPROBES_H
+#define _ASM_KPROBES_H
+/*
+ *  Kernel Probes (KProbes)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) IBM Corporation, 2002, 2004
+ * Copyright (C) Intel Corporation, 2005
+ *
+ * 2005-Apr     Rusty Lynch <rusty.lynch@intel.com> and Anil S Keshavamurthy
+ *              <anil.s.keshavamurthy@intel.com> adapted from i386
+ */
+#include <linux/types.h>
+#include <linux/ptrace.h>
+#include <linux/percpu.h>
+#include <asm/break.h>
+
+#define __ARCH_WANT_KPROBES_INSN_SLOT
+#define MAX_INSN_SIZE   2       /* last half is for kprobe-booster */
+#define BREAK_INST      (long)(__IA64_BREAK_KPROBE << 6)
+#define NOP_M_INST      (long)(1<<27)
+#define BRL_INST(i1, i2) ((long)((0xcL << 37) | /* brl */ \
+                                (0x1L << 12) |  /* many */ \
+                                (((i1) & 1) << 36) | ((i2) << 13))) /* imm */
+
+typedef union cmp_inst {
+        struct {
+        unsigned long long qp : 6;
+        unsigned long long p1 : 6;
+        unsigned long long c  : 1;
+        unsigned long long r2 : 7;
+        unsigned long long r3 : 7;
+        unsigned long long p2 : 6;
+        unsigned long long ta : 1;
+        unsigned long long x2 : 2;
+        unsigned long long tb : 1;
+        unsigned long long opcode : 4;
+        unsigned long long reserved : 23;
+        }f;
+        unsigned long long l;
+} cmp_inst_t;
+
+struct kprobe;
+
+typedef struct _bundle {
+        struct {
+                unsigned long long template : 5;
+                unsigned long long slot0 : 41;
+                unsigned long long slot1_p0 : 64-46;
+        } quad0;
+        struct {
+                unsigned long long slot1_p1 : 41 - (64-46);
+                unsigned long long slot2 : 41;
+        } quad1;
+} __attribute__((__aligned__(16)))  bundle_t;
+
+struct prev_kprobe {
+        struct kprobe *kp;
+        unsigned long status;
+};
+
+#define MAX_PARAM_RSE_SIZE      (0x60+0x60/0x3f)
+/* per-cpu kprobe control block */
+#define ARCH_PREV_KPROBE_SZ 2
+struct kprobe_ctlblk {
+        unsigned long kprobe_status;
+        struct pt_regs jprobe_saved_regs;
+        unsigned long jprobes_saved_stacked_regs[MAX_PARAM_RSE_SIZE];
+        unsigned long *bsp;
+        unsigned long cfm;
+        atomic_t prev_kprobe_index;
+        struct prev_kprobe prev_kprobe[ARCH_PREV_KPROBE_SZ];
+};
+
+#define kretprobe_blacklist_size 0
+
+#define SLOT0_OPCODE_SHIFT      (37)
+#define SLOT1_p1_OPCODE_SHIFT   (37 - (64-46))
+#define SLOT2_OPCODE_SHIFT      (37)
+
+#define INDIRECT_CALL_OPCODE            (1)
+#define IP_RELATIVE_CALL_OPCODE         (5)
+#define IP_RELATIVE_BRANCH_OPCODE       (4)
+#define IP_RELATIVE_PREDICT_OPCODE      (7)
+#define LONG_BRANCH_OPCODE              (0xC)
+#define LONG_CALL_OPCODE                (0xD)
+#define flush_insn_slot(p)              do { } while (0)
+
+typedef struct kprobe_opcode {
+        bundle_t bundle;
+} kprobe_opcode_t;
+
+struct fnptr {
+        unsigned long ip;
+        unsigned long gp;
+};
+
+/* Architecture specific copy of original instruction*/
+struct arch_specific_insn {
+        /* copy of the instruction to be emulated */
+        kprobe_opcode_t *insn;
+ #define INST_FLAG_FIX_RELATIVE_IP_ADDR         1
+ #define INST_FLAG_FIX_BRANCH_REG               2
+ #define INST_FLAG_BREAK_INST                   4
+ #define INST_FLAG_BOOSTABLE                    8
+        unsigned long inst_flag;
+        unsigned short target_br_reg;
+        unsigned short slot;
+};
+
+extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
+extern int kprobe_exceptions_notify(struct notifier_block *self,
+                                    unsigned long val, void *data);
+
+extern void invalidate_stacked_regs(void);
+extern void flush_register_stack(void);
+extern void arch_remove_kprobe(struct kprobe *p);
+
+#endif                          /* _ASM_KPROBES_H */