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| author |   Jon Medhurst <tixy@yxit.co.uk> | 2011-04-18 08:53:56 +0100 |
|---|---|---|
| committer |   Nicolas Pitre <nicolas.pitre@linaro.org> | 2011-04-28 23:40:59 -0400 |
| commit | f0aeb8bff0fe9de50e1e4093ef86ff8f17a9b1b0 (patch) | |
| tree | 5de9db19cd2576c463574ed962c394d13d50a700 /arch/arm/kernel | |
| parent | ARM: kprobes: Consolidate stub decoding functions (diff) | |
| download | linux-dev-f0aeb8bff0fe9de50e1e4093ef86ff8f17a9b1b0.tar.xz linux-dev-f0aeb8bff0fe9de50e1e4093ef86ff8f17a9b1b0.zip | |
ARM: kprobes: Reject probing of SETEND instructions
The emulation of SETEND was broken as it changed the endianess for
the running kprobes handling code. Rather than adding a new simulation
routine to fix this we'll just reject probing of SETEND as these should
be very rare in the kernel.
Note, the function emulate_none is now unused but it is left in the
source code as future patches will use it.
Signed-off-by: Jon Medhurst <tixy@yxit.co.uk>
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Diffstat (limited to 'arch/arm/kernel')
| -rw-r--r-- | arch/arm/kernel/kprobes-decode.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/arch/arm/kernel/kprobes-decode.c b/arch/arm/kernel/kprobes-decode.c index fb818976f4cb..b81fbfb33151 100644 --- a/arch/arm/kernel/kprobes-decode.c +++ b/arch/arm/kernel/kprobes-decode.c @@ -956,11 +956,6 @@ space_1111(kprobe_opcode_t insn, struct arch_specific_insn *asi) } /* SETEND : 1111 0001 0000 0001 xxxx xxxx 0000 xxxx */ - if ((insn & 0xffff00f0) == 0xf1010000) { - asi->insn[0] = insn; - asi->insn_handler = emulate_none; - return INSN_GOOD; - } /* Coprocessor instructions... */ /* MCRR2 : 1111 1100 0100 xxxx xxxx xxxx xxxx xxxx : (Rd != Rn) */ |