Date: Sun, 8 Nov 2015 19:21:28 -0800 From: "Simon J. Gerraty" <sjg@juniper.net> To: Warner Losh <imp@bsdimp.com> Cc: Ed Maste <emaste@freebsd.org>, Marius Strobl <marius@alchemy.franken.de>, Sean Bruno <sbruno@freebsd.org>, <sparc64@freebsd.org>, Justin Hibbits <jrh29@alumni.cwru.edu>, freebsd-arch <freebsd-arch@freebsd.org>, <sjg@juniper.net> Subject: Re: Sparc64 doesn't care about you, and you shouldn't care about Sparc64 Message-ID: <10153.1447039288@chaos> In-Reply-To: <CANCZdfrJfNo2qUn4EG%2BB2ZwN5QgryEPQwPYNs96B46%2Bm6hzonQ@mail.gmail.com> References: <563A5893.1030607@freebsd.org> <2AAC0EF3-528B-476F-BA9C-CDC3004465D0@bsdimp.com> <20151108155501.GA1901@alchemy.franken.de> <CAHSQbTDEUJ=R4BTAx%2BVF55Xb%2BmObhHLgM09%2Bxp-=uP8LbfeoUA@mail.gmail.com> <CAPyFy2ALaBg7jzQSTqkosb9wV=9RMdmc%2BqY2yGWvznt7=yvc7Q@mail.gmail.com> <CANCZdfrJfNo2qUn4EG%2BB2ZwN5QgryEPQwPYNs96B46%2Bm6hzonQ@mail.gmail.com>
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Warner Losh <imp@bsdimp.com> wrote:
> Speaking of CROSS_BINUTILS_PREFIX, we need to unify CROSS*PREFIX stuff
> with the CROSS_TOOLCHAIN stuff. Two different ways to specify thing.
I guess that depends on how they are used.
We (Juniper) probably took all this to extremes many years ago,
and after a few revisions it can easily get confusing.
FWIW for a compiler:
/volume/hab/FreeBSD/10/amd64/gcc/jnpr/4.2.1/amd64-juniper-junos.8/bin/amd64-juniper-junos-gcc
we currently have something like:
TOOLCHAIN_PREFIX = /volume/hab/FreeBSD/10/amd64
TOOLCHAIN_${MACHINE} = gcc/jnpr/4.2.1/amd64-juniper-junos.8
CROSS_TARGET_${MACHINE} = amd64-juniper-junos
all the VAR[._]${MACHINE} get resolved like:
CROSS_TARGET ?= ${CROSS_TARGET_${MACHINE}}
COMPILER_TYPE ?= ${COMPILER_TYPE_${MACHINE}}
if CROSS_TARGET is not empty, then
CROSS_TARGET_PREFIX = ${CROSS_TARGET}-
so all the above combine into
BUILD_TOOL_PREFIX = ${TOOLCHAIN_PREFIX}/${TOOLCHAIN_${MACHINE}}/bin
and you can set CC etc to
CC.gcc = ${BUILD_TOOL_PREFIX}/${CROSS_TARGET_PREFIX}gcc
AS.gcc = ${BUILD_TOOL_PREFIX}/${CROSS_TARGET_PREFIX}as
etc
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