Date: Sun, 24 Mar 2019 13:30:08 -0700 From: Mark Millard <marklmi@yahoo.com> To: ports-list freebsd <freebsd-ports@freebsd.org> Subject: Re: lang/go14 doesn't build without COMPAT11 in FREEBSD 12 Message-ID: <46AC6493-212B-4153-B2C6-8E748C8CD19D@yahoo.com>
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Eugene Grosbein eugen at grosbein.net wrote on
Sat Mar 23 23:16:40 UTC 2019 :
24.03.2019 1:38, Lucas Nali de Magalh=C3=A3es wrote:
> > I found a few bugs since I started rebuilding my system.
> > Most of them are related with the lack of handling of CPUTYPE=3Dnative=
make.conf tunable.
>=20
> Use CPUTYPE?=3Dnative instead of CPUTYPE=3Dnative.
# grep -r CPUTYPE Makefile* share/mk/ | grep -i native
#
There is no special handling of 'native'.
By contrast there is testing of specific values, used
to determine MACHINE_CPU 's list of features, not just
use of -march=3D${CPUTYPE} . I'll note that -march=3Dnative
or -mcpu=3Dnative for compilers does not work on all
architectures, only some. Others just report the lack
of support.
# grep -r '\<CPUTYPE\>' Makefile* share/mk/ | more
Makefile.inc1:TARGET_CPUTYPE?=3D${CPUTYPE}
Makefile.inc1:_CPUTYPE!=3D MAKEFLAGS=3D =
CPUTYPE=3D${_TARGET_CPUTYPE} ${MAKE} -f /dev/null \
Makefile.inc1: -m ${.CURDIR}/share/mk MK_AUTO_OBJ=3Dno -V =
CPUTYPE
Makefile.inc1:.error CPUTYPE global should be set with ?=3D.
Makefile.inc1: CPUTYPE=3D${TARGET_CPUTYPE}
Makefile.inc1: @echo For ZSH you must run: export =
CPUTYPE=3D${TARGET_CPUTYPE}
Makefile.inc1:XDEV_CPUTYPE?=3D${CPUTYPE}
Makefile.inc1: CPUTYPE=3D${XDEV_CPUTYPE}
Makefile.libcompat:LIBSOFTWMAKEENV=3D CPUTYPE=3Dsoft MACHINE=3Darm =
MACHINE_ARCH=3D${TARGET_ARCH}
. . . (omitting transforations to standardized CPUTYPE names) . . .
share/mk/bsd.cpu.mk:# after /etc/make.conf so it can react to the local =
value of CPUTYPE
share/mk/bsd.cpu.mk:. if ${CPUTYPE} =3D=3D "crusoe"
share/mk/bsd.cpu.mk:. elif ${CPUTYPE} =3D=3D "k5"
share/mk/bsd.cpu.mk:. elif ${CPUTYPE} =3D=3D "c7"
share/mk/bsd.cpu.mk:_CPUCFLAGS =3D -march=3D${CPUTYPE}
share/mk/bsd.cpu.mk:_CPUCFLAGS =3D -march=3D${CPUTYPE}
share/mk/bsd.cpu.mk:. if ${CPUTYPE} =3D=3D "xscale"
share/mk/bsd.cpu.mk:. elif ${CPUTYPE:M*soft*} !=3D ""
. . . (it is a long list of cases) . . .
Note that:
Taking a couple of examples from the cases (one for _CPUCFLAGS
and one for MACHINE_CPU):
. if ${MACHINE_CPUARCH} =3D=3D "i386"
. . .
. if ${CPUTYPE} =3D=3D "crusoe"
_CPUCFLAGS =3D -march=3Di686 -falign-functions=3D0 -falign-jumps=3D0 =
-falign-loops=3D0
. elif ${CPUTYPE} =3D=3D "k5"
_CPUCFLAGS =3D -march=3Dpentium
. elif ${CPUTYPE} =3D=3D "c7"
_CPUCFLAGS =3D -march=3Dc3-2
. else
_CPUCFLAGS =3D -march=3D${CPUTYPE}
. endif
. . .
. elif ${MACHINE_ARCH} =3D=3D "powerpc"
. if ${CPUTYPE} =3D=3D "e500"
_CPUCFLAGS =3D -Wa,-me500 -msoft-float
. else
_CPUCFLAGS =3D -mcpu=3D${CPUTYPE} -mno-powerpc64
. endif
and:
. elif ${MACHINE_CPUARCH} =3D=3D "amd64"
. . .
. elif ${CPUTYPE} =3D=3D "goldmont" || ${CPUTYPE} =3D=3D "westmere" || =
\
${CPUTYPE} =3D=3D "nehalem" || ${CPUTYPE} =3D=3D "silvermont"
MACHINE_CPU =3D sse42 sse41 ssse3 sse3
MACHINE_CPU ends up without such for 'native' as CPUTYPE as far
as I can tell.
To my knowledge, FreeBSD has never figured out the MACHINE_CPU
assignment for 'native' as CPUTYPE.
=3D=3D=3D
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)
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