1 files changed, 79 insertions, 0 deletions

diff --git a/arch/arm/include/asm/kprobes.h b/arch/arm/include/asm/kprobes.h
new file mode 100644
index 000000000000..a5d0d99ad387
--- /dev/null
+++ b/arch/arm/include/asm/kprobes.h
@@ -0,0 +1,79 @@
+/*
+ * arch/arm/include/asm/kprobes.h
+ *
+ * Copyright (C) 2006, 2007 Motorola Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * 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.
+ */
+
+#ifndef _ARM_KPROBES_H
+#define _ARM_KPROBES_H
+
+#include <linux/types.h>
+#include <linux/ptrace.h>
+#include <linux/percpu.h>
+
+#define __ARCH_WANT_KPROBES_INSN_SLOT
+#define MAX_INSN_SIZE                   2
+#define MAX_STACK_SIZE                  64      /* 32 would probably be OK */
+
+/*
+ * This undefined instruction must be unique and
+ * reserved solely for kprobes' use.
+ */
+#define KPROBE_BREAKPOINT_INSTRUCTION   0xe7f001f8
+
+#define regs_return_value(regs)         ((regs)->ARM_r0)
+#define flush_insn_slot(p)              do { } while (0)
+#define kretprobe_blacklist_size        0
+
+typedef u32 kprobe_opcode_t;
+
+struct kprobe;
+typedef void (kprobe_insn_handler_t)(struct kprobe *, struct pt_regs *);
+
+/* Architecture specific copy of original instruction. */
+struct arch_specific_insn {
+        kprobe_opcode_t         *insn;
+        kprobe_insn_handler_t   *insn_handler;
+};
+
+struct prev_kprobe {
+        struct kprobe *kp;
+        unsigned int status;
+};
+
+/* per-cpu kprobe control block */
+struct kprobe_ctlblk {
+        unsigned int kprobe_status;
+        struct prev_kprobe prev_kprobe;
+        struct pt_regs jprobe_saved_regs;
+        char jprobes_stack[MAX_STACK_SIZE];
+};
+
+void arch_remove_kprobe(struct kprobe *);
+void kretprobe_trampoline(void);
+
+int kprobe_trap_handler(struct pt_regs *regs, unsigned int instr);
+int kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr);
+int kprobe_exceptions_notify(struct notifier_block *self,
+                             unsigned long val, void *data);
+
+enum kprobe_insn {
+        INSN_REJECTED,
+        INSN_GOOD,
+        INSN_GOOD_NO_SLOT
+};
+
+enum kprobe_insn arm_kprobe_decode_insn(kprobe_opcode_t,
+                                        struct arch_specific_insn *);
+void __init arm_kprobe_decode_init(void);
+
+#endif /* _ARM_KPROBES_H */