Re: lib: turn CONFIG_STACKTRACE into an actual option.
From: Ingo Molnar
Date: Wed Aug 13 2014 - 11:57:21 EST
* Dave Jones <davej@xxxxxxxxxx> wrote:
> I was puzzled why /proc/$$/stack had disappeared, until I figured out
> I had disabled the last debug option that did a 'select STACKTRACE'.
> This patch makes the option show up at config time, so it can be
> enabled without enabling any of the more heavyweight debug options.
> Signed-off-by: Dave Jones <davej@xxxxxxxxxx>
> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
> index 7a638aa3545b..96c64beac12a 100644
> --- a/lib/Kconfig.debug
> +++ b/lib/Kconfig.debug
> @@ -1008,8 +1008,13 @@ config TRACE_IRQFLAGS
> either tracing or lock debugging.
> config STACKTRACE
> - bool
> + bool "Stack backtrace support"
> depends on STACKTRACE_SUPPORT
> + help
> + This option causes the kernel to create a /proc/pid/stack for
> + every process, showing its current stack trace.
> + It is also used by various kernel debugging features that require
> + stack trace generation.
> config DEBUG_KOBJECT
> bool "kobject debugging"
Acked-by: Ingo Molnar <mingo@xxxxxxxxxx>
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