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Add arm64 to universe if binutils is available.

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arm64 relies on an external binutils port or package right now, because
the in-tree linker from binutils 2.17.50 does not support arm64. Add
arm64 to universe if the linker is available. If not output a message
that arm64 is skipped.

buildworld and buildkernel use the external binutils automatically, so
it's sufficient to run 'pkg install aarch64-binutils' to build
FreeBSD/arm64.

Differential Revision:	https://reviews.freebsd.org/D2302
Reviewed by:	andrew, imp
Sponsored by:	The FreeBSD Foundation
This commit is contained in:
Ed Maste 2015-04-16 22:35:19 +00:00
parent 66e80f77d2
commit f384739d96
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=281629
1 changed files with 11 additions and 0 deletions
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11
Makefile
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@ -374,6 +374,17 @@ kernel-toolchains:
#
.if make(universe) || make(universe_kernels) || make(tinderbox) || make(targets)
TARGETS?=amd64 arm i386 mips pc98 powerpc sparc64
# XXX Add arm64 to universe only if we have an external binutils installed.
# It does not build with the in-tree linnker.
.if exists(/usr/local/aarch64-freebsd/bin/ld)
TARGETS+=arm64
TARGET_ARCHES_arm64?= aarch64
.else
universe: universe_arm64_skip
universe_epilogue: universe_arm64_skip
universe_arm64_skip: universe_prologue
@echo ">> arm64 skipped - install aarch64-binutils port or package to build"
.endif
TARGET_ARCHES_arm?= arm armeb armv6 armv6hf
TARGET_ARCHES_mips?= mipsel mips mips64el mips64 mipsn32
TARGET_ARCHES_powerpc?= powerpc powerpc64