diff options
| author | Wang Nan <wangnan0@huawei.com> | 2015-01-05 19:29:18 +0800 |
|---|---|---|
| committer | Jon Medhurst <tixy@linaro.org> | 2015-01-09 09:36:51 +0000 |
| commit | 83803d97dae1eaf6850a45ef8ee179cc66e147dc (patch) | |
| tree | e2b1124f1c7896dcadb2af471a0570b019dad551 /arch/arm/probes/decode-thumb.c | |
| parent | 832607e79d7423c67ef8a3de8dfa3d25b5b0bf86 (diff) | |
| download | linux-83803d97dae1eaf6850a45ef8ee179cc66e147dc.tar.bz2 | |
ARM: kprobes: introduces checker
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>
Diffstat (limited to 'arch/arm/probes/decode-thumb.c')
| -rw-r--r-- | arch/arm/probes/decode-thumb.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/arm/probes/decode-thumb.c b/arch/arm/probes/decode-thumb.c index 2f0453a895dc..985e7dd4cac6 100644 --- a/arch/arm/probes/decode-thumb.c +++ b/arch/arm/probes/decode-thumb.c @@ -863,20 +863,22 @@ static void __kprobes thumb32_singlestep(probes_opcode_t opcode, enum probes_insn __kprobes thumb16_probes_decode_insn(probes_opcode_t insn, struct arch_probes_insn *asi, - bool emulate, const union decode_action *actions) + bool emulate, const union decode_action *actions, + const struct decode_checker *checkers[]) { asi->insn_singlestep = thumb16_singlestep; asi->insn_check_cc = thumb_check_cc; return probes_decode_insn(insn, asi, probes_decode_thumb16_table, true, - emulate, actions); + emulate, actions, checkers); } enum probes_insn __kprobes thumb32_probes_decode_insn(probes_opcode_t insn, struct arch_probes_insn *asi, - bool emulate, const union decode_action *actions) + bool emulate, const union decode_action *actions, + const struct decode_checker *checkers[]) { asi->insn_singlestep = thumb32_singlestep; asi->insn_check_cc = thumb_check_cc; return probes_decode_insn(insn, asi, probes_decode_thumb32_table, true, - emulate, actions); + emulate, actions, checkers); } |