ARM: Move generic arm instruction parsing code to new files for sharing between features

Move the arm version of the kprobes instruction parsing code into more generic
files from where it can be used by uprobes and possibly other subsystems. The
symbol names will be made more generic in a subsequent part of this patchset.
Signed-off-by: David A. Long <dave.long@linaro.org>
Acked-by: Jon Medhurst <tixy@linaro.org>

arch/arm/include/asm/probes.h

@@ -19,6 +19,8 @@
 #ifndef _ASM_PROBES_H
 #define _ASM_PROBES_H
 
+struct kprobe;
+
 typedef void (kprobe_insn_handler_t)(struct kprobe *, struct pt_regs *);
 typedef unsigned long (kprobe_check_cc)(unsigned long);
 typedef void (kprobe_insn_singlestep_t)(struct kprobe *, struct pt_regs *);

arch/arm/kernel/Makefile

@@ -50,11 +50,11 @@ obj-$(CONFIG_DYNAMIC_FTRACE)	+= ftrace.o insn.o
 obj-$(CONFIG_FUNCTION_GRAPH_TRACER)	+= ftrace.o insn.o
 obj-$(CONFIG_JUMP_LABEL)	+= jump_label.o insn.o patch.o
 obj-$(CONFIG_KEXEC)		+= machine_kexec.o relocate_kernel.o
-obj-$(CONFIG_KPROBES)		+= kprobes.o kprobes-common.o patch.o
+obj-$(CONFIG_KPROBES)		+= probes.o kprobes.o kprobes-common.o patch.o
 ifdef CONFIG_THUMB2_KERNEL
 obj-$(CONFIG_KPROBES)		+= kprobes-thumb.o
 else
-obj-$(CONFIG_KPROBES)		+= kprobes-arm.o
+obj-$(CONFIG_KPROBES)		+= kprobes-arm.o probes-arm.o
 endif
 obj-$(CONFIG_ARM_KPROBES_TEST)	+= test-kprobes.o
 test-kprobes-objs		:= kprobes-test.o

arch/arm/kernel/probes-arm.h

+/*
+ * arch/arm/kernel/probes-arm.h
+ *
+ * Copyright 2013 Linaro Ltd.
+ * Written by: David A. Long
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#ifndef _ARM_KERNEL_PROBES_ARM_H
+#define  _ARM_KERNEL_PROBES_ARM_H
+
+void __kprobes simulate_bbl(struct kprobe *p, struct pt_regs *regs);
+void __kprobes simulate_blx1(struct kprobe *p, struct pt_regs *regs);
+void __kprobes simulate_blx2bx(struct kprobe *p, struct pt_regs *regs);
+void __kprobes simulate_mrs(struct kprobe *p, struct pt_regs *regs);
+void __kprobes simulate_mov_ipsp(struct kprobe *p, struct pt_regs *regs);
+
+void __kprobes emulate_ldrdstrd(struct kprobe *p, struct pt_regs *regs);
+void __kprobes emulate_ldr(struct kprobe *p, struct pt_regs *regs);
+void __kprobes emulate_str(struct kprobe *p, struct pt_regs *regs);
+void __kprobes emulate_rd12rn16rm0rs8_rwflags(struct kprobe *p,
+	struct pt_regs *regs);
+void __kprobes emulate_rd12rn16rm0_rwflags_nopc(struct kprobe *p,
+	struct pt_regs *regs);
+void __kprobes emulate_rd16rn12rm0rs8_rwflags_nopc(struct kprobe *p,
+	struct pt_regs *regs);
+void __kprobes emulate_rd12rm0_noflags_nopc(struct kprobe *p,
+	struct pt_regs *regs);
+void __kprobes emulate_rdlo12rdhi16rn0rm8_rwflags_nopc(struct kprobe *p,
+	struct pt_regs *regs);
+
+#endif