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ARM: kprobes: disallow probing stack consuming instructions

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This patch prohibits probing instructions for which the stack
requirements are unable to be determined statically. Some test cases
are found not work again after the modification, this patch also
removes them.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Reviewed-by: Jon Medhurst <tixy@linaro.org>
Signed-off-by: Jon Medhurst <tixy@linaro.org>
This commit is contained in:
Wang Nan
2015-01-05 19:29:25 +08:00
committed by Jon Medhurst
parent 6624cf651f
commit a0266c214f
5 changed files with 33 additions and 8 deletions
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1
arch/arm/include/asm/kprobes.h
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@@ -22,7 +22,6 @@
#define __ARCH_WANT_KPROBES_INSN_SLOT
#define MAX_INSN_SIZE 2
#define MAX_STACK_SIZE 64 /* 32 would probably be OK */
#define flush_insn_slot(p) do { } while (0)
#define kretprobe_blacklist_size 0