Wang Nan b7e37567d0 kprobes/x86: Mark 2 bytes NOP as boostable ...

Currently, x86 kprobes is unable to boost 2 bytes nop like:

  nopl 0x0(%rax,%rax,1)

which is 0x0f 0x1f 0x44 0x00 0x00.

Such nops have exactly 5 bytes to hold a relative jmp
instruction. Boosting them should be obviously safe.

This patch enable boosting such nops by simply updating
twobyte_is_boostable[] array.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: <lizefan@huawei.com>
Link: http://lkml.kernel.org/r/1423532045-41049-1-git-send-email-wangnan0@huawei.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

2015-02-18 21:50:12 +01:00

..

alpha

vm: add VM_FAULT_SIGSEGV handling support

2015-01-29 10:51:32 -08:00

arc

arc: mm: Fix build failure

2015-01-30 10:31:14 -08:00

arm

Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2015-02-09 14:28:42 -08:00

arm64

Merge branch 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2015-02-09 17:53:53 -08:00

avr32

vm: add VM_FAULT_SIGSEGV handling support

2015-01-29 10:51:32 -08:00

blackfin

arch/blackfin/mach-bf533/boards/stamp.c: add linux/delay.h

2015-01-08 15:10:52 -08:00

c6x

net, lib: kill arch_fast_hash library bits

2014-12-10 15:17:46 -05:00

cris

vm: add VM_FAULT_SIGSEGV handling support

2015-01-29 10:51:32 -08:00

frv

vm: add VM_FAULT_SIGSEGV handling support

2015-01-29 10:51:32 -08:00

hexagon

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rkuo/linux-hexagon-kernel

2014-12-19 17:57:51 -08:00

ia64

vm: add VM_FAULT_SIGSEGV handling support

2015-01-29 10:51:32 -08:00

m32r

vm: add VM_FAULT_SIGSEGV handling support

2015-01-29 10:51:32 -08:00

m68k

vm: add VM_FAULT_SIGSEGV handling support

2015-01-29 10:51:32 -08:00

metag

vm: add VM_FAULT_SIGSEGV handling support

2015-01-29 10:51:32 -08:00

microblaze

vm: add VM_FAULT_SIGSEGV handling support

2015-01-29 10:51:32 -08:00

mips

Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2015-02-09 14:28:42 -08:00

mn10300

mm/debug_pagealloc: fix build failure on ppc and some other archs

2015-02-05 13:35:30 -08:00

nios2

nios2: fix unhandled signals

2015-02-09 09:47:05 +08:00

openrisc

vm: add VM_FAULT_SIGSEGV handling support

2015-01-29 10:51:32 -08:00

parisc

vm: add VM_FAULT_SIGSEGV handling support

2015-01-29 10:51:32 -08:00

powerpc

Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2015-02-09 14:28:42 -08:00

s390

Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2015-02-09 14:28:42 -08:00

score

vm: add VM_FAULT_SIGSEGV handling support

2015-01-29 10:51:32 -08:00

sh

vm: add VM_FAULT_SIGSEGV handling support

2015-01-29 10:51:32 -08:00

sparc

mm/debug_pagealloc: fix build failure on ppc and some other archs

2015-02-05 13:35:30 -08:00

tile

Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2015-02-09 14:28:42 -08:00

um

vm: add VM_FAULT_SIGSEGV handling support

2015-01-29 10:51:32 -08:00

unicore32

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

2014-12-11 14:27:06 -08:00

x86

kprobes/x86: Mark 2 bytes NOP as boostable

2015-02-18 21:50:12 +01:00

xtensa

vm: add VM_FAULT_SIGSEGV handling support

2015-01-29 10:51:32 -08:00

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