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Introduce LLD_BOOTSTRAP to control lld as bootstrap linker

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Add WITH_LLD_BOOTSTRAP and WITHOUT_LLD_BOOTSTRAP knobs, similar to the
Clang bootstrap knobs.

Reviewed by:	dim
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D10249
This commit is contained in:
Ed Maste 2017-04-09 01:35:19 +00:00
parent 5850a75952
commit ffe63c8bf0
4 changed files with 19 additions and 9 deletions
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17
Makefile.inc1
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@ -171,7 +171,7 @@ CROSS_BINUTILS_PREFIX?=${CROSS_TOOLCHAIN_PREFIX}
# riscv64-binutils port or package.
.if !make(showconfig)
.if !empty(BROKEN_OPTIONS:MBINUTILS_BOOTSTRAP) && \
${MK_LLD_IS_LD} == "no" && \
${MK_LLD_BOOTSTRAP} == "no" && \
!defined(CROSS_BINUTILS_PREFIX)
CROSS_BINUTILS_PREFIX=/usr/local/${TARGET_ARCH}-freebsd/bin/
.if !exists(${CROSS_BINUTILS_PREFIX})
@ -1665,9 +1665,10 @@ ${_bt}-usr.bin/yacc: ${_bt}-lib/liby
_gensnmptree= usr.sbin/bsnmpd/gensnmptree
.endif
# We need to build tblgen when we're building clang either as
# the bootstrap compiler, or as the part of the normal build.
.if ${MK_CLANG_BOOTSTRAP} != "no" || ${MK_CLANG} != "no"
# We need to build tblgen when we're building clang or lld, either as
# bootstrap tools, or as the part of the normal build.
.if ${MK_CLANG_BOOTSTRAP} != "no" || ${MK_CLANG} != "no" || \
${MK_LLD_BOOTSTRAP} != "no" || ${MK_LLD} != "no"
_clang_tblgen= \
lib/clang/libllvmminimal \
usr.bin/clang/llvm-tblgen \
@ -1828,9 +1829,6 @@ _elftctools= lib/libelftc \
# cross-build on a FreeBSD 10 host:
_elftctools+= usr.bin/addr2line
.endif
.if ${MK_LLD_IS_LD} != "no"
_lld= usr.bin/clang/lld
.endif
.elif ${TARGET_ARCH} != ${MACHINE_ARCH} && ${MK_ELFTOOLCHAIN_BOOTSTRAP} != "no"
# If cross-building with an external binutils we still need to build strip for
# the target (for at least crunchide).
@ -1841,6 +1839,11 @@ _elftctools= lib/libelftc \
.if ${MK_CLANG_BOOTSTRAP} != "no"
_clang= usr.bin/clang
.endif
.if ${MK_LLD_BOOTSTRAP} != "no"
_lld= usr.bin/clang/lld
.endif
.if ${MK_CLANG_BOOTSTRAP} != "no" || ${MK_LLD_BOOTSTRAP} != "no"
_clang_libs= lib/clang
.endif
.if ${MK_GCC_BOOTSTRAP} != "no"

4
share/mk/src.opts.mk
View File

@ -250,9 +250,9 @@ __DEFAULT_YES_OPTIONS+=LLVM_LIBUNWIND
__DEFAULT_NO_OPTIONS+=LLVM_LIBUNWIND
.endif
.if ${__T} == "aarch64"
__DEFAULT_YES_OPTIONS+=LLD_IS_LD
__DEFAULT_YES_OPTIONS+=LLD_BOOTSTRAP LLD_IS_LD
.else
__DEFAULT_NO_OPTIONS+=LLD_IS_LD
__DEFAULT_NO_OPTIONS+=LLD_BOOTSTRAP LLD_IS_LD
.endif
.if ${__T} == "aarch64" || ${__T} == "amd64"
__DEFAULT_YES_OPTIONS+=LLDB

5
tools/build/options/WITHOUT_LLD_BOOTSTRAP Normal file
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@ -0,0 +1,5 @@
.\" $FreeBSD$
Set to not build the LLD linker during the bootstrap phase of
the build.
To be able to build the system, either Binutils or LLD bootstrap must be
enabled unless an alternate linker is provided via XLD.

2
tools/build/options/WITH_LLD_BOOTSTRAP Normal file
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@ -0,0 +1,2 @@
.\" $FreeBSD$
Set to build the LLD linker during the bootstrap phase of the build.