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authorJon Medhurst <tixy@yxit.co.uk>2011-04-19 20:56:58 +0400
committerTixy <tixy@medhuaa1.miniserver.com>2011-07-13 21:32:41 +0400
commit2437170710c4a3dee137a65623960aa7ac82a32e (patch)
treec886353a398a3e60c148bfd3e3eb7c3a42486d88 /arch/arm/kernel/kprobes.h
parentde41984003ed2315dbb7d58168cc3e72e15b075c (diff)
downloadlinux-2437170710c4a3dee137a65623960aa7ac82a32e.tar.xz
ARM: kprobes: Add Thumb instruction decoding stubs
Extend arch_prepare_kprobe to support probing of Thumb code. For the actual decoding of Thumb instructions, stub functions are added which currently just reject the probe. Signed-off-by: Jon Medhurst <tixy@yxit.co.uk> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Diffstat (limited to 'arch/arm/kernel/kprobes.h')
-rw-r--r--arch/arm/kernel/kprobes.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/kernel/kprobes.h b/arch/arm/kernel/kprobes.h
index 406bb2da7fea..86abfabe83f2 100644
--- a/arch/arm/kernel/kprobes.h
+++ b/arch/arm/kernel/kprobes.h
@@ -29,8 +29,21 @@ enum kprobe_insn {
INSN_GOOD_NO_SLOT
};
+typedef enum kprobe_insn (kprobe_decode_insn_t)(kprobe_opcode_t,
+ struct arch_specific_insn *);
+
+#ifdef CONFIG_THUMB2_KERNEL
+
+enum kprobe_insn thumb16_kprobe_decode_insn(kprobe_opcode_t,
+ struct arch_specific_insn *);
+enum kprobe_insn thumb32_kprobe_decode_insn(kprobe_opcode_t,
+ struct arch_specific_insn *);
+
+#else /* !CONFIG_THUMB2_KERNEL */
+
enum kprobe_insn arm_kprobe_decode_insn(kprobe_opcode_t,
struct arch_specific_insn *);
+#endif
void __init arm_kprobe_decode_init(void);