diff options
| author | Jon Medhurst <tixy@yxit.co.uk> | 2011-06-09 09:46:56 +0100 |
|---|---|---|
| committer | Tixy <tixy@medhuaa1.miniserver.com> | 2011-07-13 17:32:50 +0000 |
| commit | 0d32e7d11b5ce8b3ab11fd74123b46b88f26b3e2 (patch) | |
| tree | d7b0731a75f3bac0f91585987520e9381348e702 /arch/arm/kernel/kprobes-arm.c | |
| parent | 56d8fbddc2a2be7aa81d65e5a6f0f6093ee70c48 (diff) | |
ARM: kprobes: Migrate ARM space_cccc_100x to decoding tables
Signed-off-by: Jon Medhurst <tixy@yxit.co.uk>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Diffstat (limited to 'arch/arm/kernel/kprobes-arm.c')
| -rw-r--r-- | arch/arm/kernel/kprobes-arm.c | 33 |
1 files changed, 13 insertions, 20 deletions
diff --git a/arch/arm/kernel/kprobes-arm.c b/arch/arm/kernel/kprobes-arm.c index 319e6feb036..b2fd2c87ffe 100644 --- a/arch/arm/kernel/kprobes-arm.c +++ b/arch/arm/kernel/kprobes-arm.c @@ -1434,25 +1434,18 @@ static const union decode_item arm_cccc_01xx_table[] = { DECODE_END }; -static enum kprobe_insn __kprobes -space_cccc_100x(kprobe_opcode_t insn, struct arch_specific_insn *asi) -{ - /* LDM(2) : cccc 100x x101 xxxx 0xxx xxxx xxxx xxxx */ - /* LDM(3) : cccc 100x x1x1 xxxx 1xxx xxxx xxxx xxxx */ - if ((insn & 0x0e708000) == 0x85000000 || - (insn & 0x0e508000) == 0x85010000) - return INSN_REJECTED; - - /* LDM(1) : cccc 100x x0x1 xxxx xxxx xxxx xxxx xxxx */ - /* STM(1) : cccc 100x x0x0 xxxx xxxx xxxx xxxx xxxx */ - - /* - * Make the instruction unconditional because the new emulation - * functions don't bother to setup the PSR context. - */ - insn = (insn | 0xe0000000) & ~0x10000000; - return kprobe_decode_ldmstm(insn, asi); -} +static const union decode_item arm_cccc_100x_table[] = { + /* Block data transfer instructions */ + + /* LDM cccc 100x x0x1 xxxx xxxx xxxx xxxx xxxx */ + /* STM cccc 100x x0x0 xxxx xxxx xxxx xxxx xxxx */ + DECODE_CUSTOM (0x0e400000, 0x08000000, kprobe_decode_ldmstm), + + /* STM (user registers) cccc 100x x1x0 xxxx xxxx xxxx xxxx xxxx */ + /* LDM (user registers) cccc 100x x1x1 xxxx 0xxx xxxx xxxx xxxx */ + /* LDM (exception ret) cccc 100x x1x1 xxxx 1xxx xxxx xxxx xxxx */ + DECODE_END +}; static enum kprobe_insn __kprobes space_cccc_101x(kprobe_opcode_t insn, struct arch_specific_insn *asi) @@ -1531,7 +1524,7 @@ arm_kprobe_decode_insn(kprobe_opcode_t insn, struct arch_specific_insn *asi) else if ((insn & 0x0e000000) == 0x08000000) - return space_cccc_100x(insn, asi); + return kprobe_decode_insn(insn, asi, arm_cccc_100x_table, false); else if ((insn & 0x0e000000) == 0x0a000000) |