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    Subject[PATCH 10/31] Add debugger entry points for XTENSA
    Date
    This patch series adds an export which can be set by system debuggers to
    direct the hard lockup and soft lockup detector to trigger a breakpoint
    exception and enter a debugger if one is active. It is assumed that if
    someone sets this variable, then an breakpoint handler of some sort will
    be actively loaded or registered via the notify die handler chain.

    This addition is extremely useful for debugging hard and soft lockups
    real time and quickly from a console debugger.

    Signed-off-by: Jeffrey Merkey <jeffmerkey@gmail.com>
    ---
    arch/xtensa/include/asm/kdebug.h | 4 ++++
    1 file changed, 4 insertions(+)
    create mode 100644 arch/xtensa/include/asm/kdebug.h

    diff --git a/arch/xtensa/include/asm/kdebug.h b/arch/xtensa/include/asm/kdebug.h
    new file mode 100644
    index 0000000..5d09de1
    --- /dev/null
    +++ b/arch/xtensa/include/asm/kdebug.h
    @@ -0,0 +1,4 @@
    +
    +static inline void arch_breakpoint(void)
    +{
    +}
    --
    1.8.3.1
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