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| author | Wang Nan | 2015-01-05 12:29:18 +0100 |
|---|---|---|
| committer | Jon Medhurst | 2015-01-09 10:36:51 +0100 |
| commit | 83803d97dae1eaf6850a45ef8ee179cc66e147dc (patch) | |
| tree | e2b1124f1c7896dcadb2af471a0570b019dad551 /arch/arm/probes/decode.h | |
| parent | ARM: probes: Use correct action types for MOVW, SEV and WFI (diff) | |
| download | kernel-qcow2-linux-83803d97dae1eaf6850a45ef8ee179cc66e147dc.tar.gz kernel-qcow2-linux-83803d97dae1eaf6850a45ef8ee179cc66e147dc.tar.xz kernel-qcow2-linux-83803d97dae1eaf6850a45ef8ee179cc66e147dc.zip | |
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.h')
| -rw-r--r-- | arch/arm/probes/decode.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/arm/probes/decode.h b/arch/arm/probes/decode.h index 1d0b53169080..f9b08ba7fe73 100644 --- a/arch/arm/probes/decode.h +++ b/arch/arm/probes/decode.h @@ -314,6 +314,14 @@ union decode_action { probes_custom_decode_t *decoder; }; +typedef enum probes_insn (probes_check_t)(probes_opcode_t, + struct arch_probes_insn *, + const struct decode_header *); + +struct decode_checker { + probes_check_t *checker; +}; + #define DECODE_END \ {.bits = DECODE_TYPE_END} @@ -402,6 +410,7 @@ probes_insn_handler_t probes_emulate_none; int __kprobes probes_decode_insn(probes_opcode_t insn, struct arch_probes_insn *asi, const union decode_item *table, bool thumb, bool emulate, - const union decode_action *actions); + const union decode_action *actions, + const struct decode_checker **checkers); #endif |