On 05/02/2018 06:44 AM, changbin.du@xxxxxxxxx wrote: > From: Changbin Du <changbin.du@xxxxxxxxx> > Sorry, I missed one: > diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug > index ab55801..e264199 100644 > --- a/lib/Kconfig.debug > +++ b/lib/Kconfig.debug > @@ -216,6 +216,27 @@ config NO_AUTO_INLINE > > If unsure, select N. > > +config DEBUG_EXPERIENCE > + bool "Optimize for better debugging experience (-Og)" > + default n > + select NO_AUTO_INLINE > + depends on !CC_OPTIMIZE_FOR_SIZE > + help > + This will apply GCC '-Og' optimization level which is supported > + since GCC 4.8. This optimization level offers a reasonable level > + of optimization while maintaining fast compilation and a good > + debugging experience. It is similar to '-O1' while preferring to > + keep debug ability over runtime speed. The overall performance > + will drop a bit (~6%). > + > + Use only if you want to debug the kernel, especially if you want > + to have better kernel debugging experience with gdb facilities > + like kgdb or qemu. If enabling this option breaks your kernel, > + you should either disable this or find a fix (mostly in the arch > + code). Currently this option has only be tested on x86_64 platform. been tested > + > + If unsure, select N. > + > config ENABLE_WARN_DEPRECATED > bool "Enable __deprecated logic" > default y > -- ~Randy -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
