Date: Sun, 21 Jul 2013 14:51:26 -0600 From: Warner Losh <imp@bsdimp.com> To: Juli Mallett <juli@clockworksquid.com> Cc: Warner Losh <imp@freebsd.org>, "freebsd-mips@freebsd.org" <freebsd-mips@freebsd.org> Subject: Re: Can we undo the octeon hack? Message-ID: <F0B68A50-B5BF-426E-874C-1EFC03CAEAEB@bsdimp.com> In-Reply-To: <6401792509903023722@unknownmsgid> References: <CAJ-VmonJg2BhBdckFb1O79ZnWrXKZhT%2Bku9SjuswLui6iZC1Ow@mail.gmail.com> <6401792509903023722@unknownmsgid>
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These should really be in the std.foo files for each specific subport. =
That way atheros could have one set, and octeon could have another.
I do know that we don't do the std.foo thing for the atheros config =
files, but we really should start, and this would be a good place to =
start...
Warner
On Jul 21, 2013, at 12:54 PM, Juli Mallett wrote:
> Making it possible to override each value would be ideal but
> cumbersome. If you want to do that, by all means do!
>=20
> Thanks,
> Juli.
>=20
> On 2013-07-21, at 11:44, Adrian Chadd <adrian@freebsd.org> wrote:
>=20
>> Hi Juli/Warner,
>>=20
>> Is it possible to undo this particular hack, and allow these values =
to
>> be overridden in the kernel config files?
>>=20
>> from kern.pre.mk
>>=20
>> CFLAGS=3D ${COPTFLAGS} ${C_DIALECT} ${DEBUG} ${CWARNFLAGS}
>> CFLAGS+=3D ${INCLUDES} -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS =
-include
>> opt_global.h
>> .if ${COMPILER_TYPE} !=3D "clang"
>> CFLAGS+=3D -fno-common -finline-limit=3D${INLINE_LIMIT}
>> .if ${MACHINE_CPUARCH} !=3D "mips"
>> CFLAGS+=3D --param inline-unit-growth=3D100
>> CFLAGS+=3D --param large-function-growth=3D1000
>> .else
>> # XXX Actually a gross hack just for Octeon because of the Simple =
Executive.
>> CFLAGS+=3D --param inline-unit-growth=3D10000
>> CFLAGS+=3D --param large-function-growth=3D100000
>> CFLAGS+=3D --param max-inline-insns-single=3D10000
>> .endif
>> .endif
>>=20
>> I'd like to be able to experiment with different inline settings in
>> order to try and squeeze kernels down to be smaller.
>>=20
>> Thanks!
>>=20
>>=20
>> -adrian
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