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57f804675e
As described in Warner's email message[1] to the FreeBSD-arch mailing list we have reached GCC 4.2.1's retirement date. At this time all supported architectures either use in-tree Clang, or rely on external toolchain (i.e., a contemporary GCC version from ports). GCC 4.2.1 was released July 18, 2007 and was imported into FreeBSD later that year, in r171825. GCC has served us well, but version 4.2.1 is obsolete and not used by default on any architecture in FreeBSD. It does not support modern C and does not support arm64 or RISC-V. Thanks to everyone responsible for maintaining, updating, and testing GCC in the FreeBSD base system over the years. So long, and thanks for all the fish. [1] https://lists.freebsd.org/pipermail/freebsd-arch/2020-January/019823.html PR: 228919 Reviewed by: brooks, imp Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D23124
93 lines
2.8 KiB
Makefile
93 lines
2.8 KiB
Makefile
# $FreeBSD$
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# building clang is particularly tedious - so avoid re-inventing wheels
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all: bootstrap-toolchain
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UPDATE_DEPENDFILE= no
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.export UPDATE_DEPENDFILE
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# we build for the pseudo machine "host"
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TARGET_MACHINE= host
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HOST_MACHINE!= uname -m
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HOST_MACHINE_ARCH!= uname -p
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BTOOLSDIR?= ${HOST_OBJTOP}/tools
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WORLDTMP= ${BTOOLSDIR}
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LEGACY_TOOLS?= ${BTOOLSDIR}/legacy
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BSENV= \
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MAKESYSPATH=${SRCTOP}/tools/build/mk:${SRCTOP}/share/mk \
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TARGET=${HOST_MACHINE} TARGET_ARCH=${HOST_MACHINE_ARCH} \
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WITHOUT_STAGING=1 STAGE_ROOT= BOOTSTRAPPING_TOOLS=1 \
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WORLDTMP=${BTOOLSDIR} \
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INSTALL="sh ${SRCTOP}/tools/install.sh" \
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PATH=${LEGACY_TOOLS}/usr/sbin:${LEGACY_TOOLS}/usr/bin:${LEGACY_TOOLS}/bin:${PATH}
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.if !defined(OSRELDATE)
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ord_h= /usr/include/osreldate.h
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.if exists(${ord_h})
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OSRELDATE!= sed -n '/define.*__FreeBSD_version/{s,^[^0-9]*,,p;q;}' ${ord_h}
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.endif
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OSRELDATE?= 0
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.endif
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# need to keep this in sync with src/Makefile.inc1
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BSARGS= DESTDIR= \
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OBJTOP='${WORLDTMP}/obj-tools' \
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OBJROOT='$${OBJTOP}/' \
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MAKEOBJDIRPREFIX= \
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BOOTSTRAPPING=${OSRELDATE} \
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BWPHASE=${.TARGET} \
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SSP_CFLAGS= \
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MK_HTML=no NO_LINT=yes MK_MAN=no \
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-DNO_PIC MK_PROFILE=no -DNO_SHARED \
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-DNO_CPU_CFLAGS MK_WARNS=no MK_CTF=no \
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MK_CLANG_EXTRAS=no MK_CLANG_FULL=no \
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MK_LLDB=no MK_TESTS=no \
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MK_INCLUDES=yes
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# We will handle building the toolchain and cross-compiler.
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BSARGS+= MK_CROSS_COMPILER=no MK_CLANG=no
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DISTRIB_ENV= INSTALL="sh ${SRCTOP}/tools/install.sh" NO_FSCHG=1 MK_TESTS=no
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legacy: .MAKE ${META_DEPS}
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mkdir -p ${LEGACY_TOOLS}
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${DISTRIB_ENV} ${MAKE} -C ${SRCTOP}/etc distrib-dirs \
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DESTDIR=${BTOOLSDIR} > $@.distrib-dirs_btoolsdir
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${DISTRIB_ENV} ${MAKE} -C ${SRCTOP}/etc distrib-dirs \
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DESTDIR=${LEGACY_TOOLS} > $@.distrib-dirs_legacy_tools
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${BSENV} ${MAKE} -C ${SRCTOP} -f Makefile.inc1 ${BSARGS} $@
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bootstrap-tools: legacy
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build-tools: bootstrap-tools
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cross-tools: build-tools
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cross-tools build-tools bootstrap-tools: .MAKE ${META_DEPS}
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${BSENV} ${MAKE} -C ${SRCTOP} -f Makefile.inc1 ${BSARGS} $@
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# MAKELEVEL=0 so that dirdeps.mk does its thing
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# BSENV:MPATH=* lets us use the bootstrapped stuff in LEGACY_TOOLS above.
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# TARGET* is so that MK_CLANG gets set correctly.
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BSTCENV= \
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MAKELEVEL=0 \
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MACHINE=host \
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BOOTSTRAPPING_TOOLS=1 \
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TARGET=${HOST_MACHINE} \
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TARGET_ARCH=${HOST_MACHINE_ARCH} \
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${BSENV:MPATH=*}
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BSTCARGS= \
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${BSARGS:NDESTDIR=*:NOBJTOP=*:NOBJROOT=*:NMK_CROSS_COMPILER=*:NMK_CLANG=*} \
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BUILD_DIRDEPS=yes \
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LLVM_TBLGEN=${TOOLSDIR}/usr/bin/llvm-tblgen \
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CLANG_TBLGEN=${TOOLSDIR}/usr/bin/clang-tblgen \
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-DWITH_STAGING \
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-DWITH_TOOLSDIR
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# finally we build toolchain leveraging the above.
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bootstrap-toolchain: .MAKE cross-tools
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${BSTCENV} ${MAKE} -C ${SRCTOP} ${BSTCARGS} toolchain
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# Ensure CCACHE_DIR is ignored since we are processing .meta files here.
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.include <bsd.compiler.mk>
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