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ARM: kprobes: introduces checker

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This patch introdces 'checker' to decoding phase, and calls checkers
when instruction decoding. This allows further decoding for specific
instructions.  This patch introduces a stub call of checkers in kprobe
arch_prepare_kprobe() as an example and for further expansion.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Reviewed-by: Jon Medhurst <tixy@linaro.org>
Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Jon Medhurst <tixy@linaro.org>
This commit is contained in:
Wang Nan
2015-01-05 19:29:18 +08:00
committed by Jon Medhurst
parent 832607e79d
commit 83803d97da
11 changed files with 95 additions and 20 deletions
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3
arch/arm/probes/decode-arm.h
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@@ -68,6 +68,7 @@ extern const union decode_item probes_decode_arm_table[];
enum probes_insn arm_probes_decode_insn(probes_opcode_t,
struct arch_probes_insn *, bool emulate,
const union decode_action *actions);
const union decode_action *actions,
const struct decode_checker *checkers[]);
#endif