Date: Sun, 21 Jul 2013 11:54:36 -0700 From: Juli Mallett <juli@clockworksquid.com> To: Adrian Chadd <adrian@freebsd.org> Cc: Warner Losh <imp@freebsd.org>, "freebsd-mips@freebsd.org" <freebsd-mips@freebsd.org> Subject: Re: Can we undo the octeon hack? Message-ID: <6401792509903023722@unknownmsgid> In-Reply-To: <CAJ-VmonJg2BhBdckFb1O79ZnWrXKZhT%2Bku9SjuswLui6iZC1Ow@mail.gmail.com> References: <CAJ-VmonJg2BhBdckFb1O79ZnWrXKZhT%2Bku9SjuswLui6iZC1Ow@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Making it possible to override each value would be ideal but
cumbersome. If you want to do that, by all means do!
Thanks,
Juli.
On 2013-07-21, at 11:44, Adrian Chadd <adrian@freebsd.org> wrote:
> Hi Juli/Warner,
>
> Is it possible to undo this particular hack, and allow these values to
> be overridden in the kernel config files?
>
> from kern.pre.mk
>
> CFLAGS= ${COPTFLAGS} ${C_DIALECT} ${DEBUG} ${CWARNFLAGS}
> CFLAGS+= ${INCLUDES} -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include
> opt_global.h
> .if ${COMPILER_TYPE} != "clang"
> CFLAGS+= -fno-common -finline-limit=${INLINE_LIMIT}
> .if ${MACHINE_CPUARCH} != "mips"
> CFLAGS+= --param inline-unit-growth=100
> CFLAGS+= --param large-function-growth=1000
> .else
> # XXX Actually a gross hack just for Octeon because of the Simple Executive.
> CFLAGS+= --param inline-unit-growth=10000
> CFLAGS+= --param large-function-growth=100000
> CFLAGS+= --param max-inline-insns-single=10000
> .endif
> .endif
>
> I'd like to be able to experiment with different inline settings in
> order to try and squeeze kernels down to be smaller.
>
> Thanks!
>
>
> -adrian
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?6401792509903023722>