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    Subject[PATCH 0/4] ARM: kprobes: introduces instruction checker.
    Date
    This patch series is part of the version 7 of patch 'ARM: kprobes:
    enable OPTPROBES for ARM 32.'. Its main goal is introducing checker
    mechanism to give a chance to detail check each probed instructions.
    Based on Masami Hiramatsu's suggestion, I make it a dedicated series.

    Previous discussions can be found in following threads:

    https://lkml.org/lkml/2014/10/22/254
    https://lkml.org/lkml/2014/8/27/255
    https://lkml.org/lkml/2014/8/12/12
    https://lkml.org/lkml/2014/8/8/992
    https://lkml.org/lkml/2014/8/8/5
    https://lkml.org/lkml/2014/8/5/63

    Different from v6, this version redesign checker to make it use seprate
    tables other than K/Uprobe action tables, because checkers are not
    K/Uprobt specific.

    Patch 4/4 in this series also fix a minor bug in kprobe: original ARM
    kprobe allows probing on instructions like 'str r0, [sp, r1]', which is
    unsafe because we are unable to determine the stack space required to be
    protected. However, this bug exists since 2007, and gcc for ARM
    actually doesn't generate code like it.

    Wang Nan (4):
    ARM: kprobes: seprates load and store actions
    ARM: kprobes: introduces checker
    ARM: kprobes: collects stack consumption for store instructions
    ARM: kprobes: disallow probing stack consuming instructions

    arch/arm/include/asm/probes.h | 1 +
    arch/arm/kernel/kprobes-arm.c | 6 +-
    arch/arm/kernel/kprobes-test-arm.c | 17 ++--
    arch/arm/kernel/kprobes-test-thumb.c | 13 +++
    arch/arm/kernel/kprobes-thumb.c | 18 ++--
    arch/arm/kernel/kprobes.c | 23 ++++-
    arch/arm/kernel/kprobes.h | 3 +-
    arch/arm/kernel/probes-arm.c | 41 +++++++--
    arch/arm/kernel/probes-arm.h | 10 ++-
    arch/arm/kernel/probes-thumb.c | 168 ++++++++++++++++++++++++++++++-----
    arch/arm/kernel/probes-thumb.h | 26 ++++--
    arch/arm/kernel/probes.c | 115 +++++++++++++++++++++++-
    arch/arm/kernel/probes.h | 24 ++++-
    arch/arm/kernel/uprobes-arm.c | 6 +-
    arch/arm/kernel/uprobes.c | 2 +-
    15 files changed, 412 insertions(+), 61 deletions(-)

    --
    1.8.4



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