svn commit: r340157 - in head: . tools/build tools/tools/nanobsd/embedded
Michal Meloun
melounmichal at gmail.com
Tue Nov 6 07:10:39 UTC 2018
On 05.11.2018 20:51, Alex Richardson wrote:
> Author: arichardson
> Date: Mon Nov 5 19:51:10 2018
> New Revision: 340157
> URL: https://svnweb.freebsd.org/changeset/base/340157
>
> Log:
> Allow building world without inheriting $PATH
>
> Inheriting $PATH during the build phase can cause the build to fail when
> compiling on a different system due to missing build tools or incompatible
> versions somewhere in $PATH. This has cause build failures for us before
> due to the jenkins slaves still running FreeBSD 10.
> Listing the tools we depend on explicitly instead of just using whatever
> happens to be in $PATH allows us to check that we don't accidentally add a
> new build dependency.
>
> All tools that do no need to be bootstrapped will now be symlinked to
> ${WORLDTMP}/legacy/bin and during the build phase $PATH will only contain
> ${WORLDTMP}. There is also a new variable "BOOTSTRAP_ALL_TOOLS" which can
> be set to force compiling almost all bootstrap tools instead of symlinking
> them. This will not bootstrap tools such as cp,mv, etc. since they may be
> used during the build and for those we should really only be using POSIX
> compatible options.
>
> Furthermore, this change is required in order to be able to build on
> non-FreeBSD hosts. While the same binaries may exist on Linux/MacOS they
> often accept different flags or produce incompatible output.
>
> Approved By: brooks (mentor)
> Differential Revision: https://reviews.freebsd.org/D16815
>
> Modified:
> head/Makefile
> head/Makefile.inc1
> head/tools/build/Makefile
> head/tools/tools/nanobsd/embedded/common
>
> Modified: head/Makefile
> ==============================================================================
> --- head/Makefile Mon Nov 5 19:25:57 2018 (r340156)
> +++ head/Makefile Mon Nov 5 19:51:10 2018 (r340157)
> @@ -610,10 +610,13 @@ _need_lld_${target}_${target_arch} != \
> # XXX: Passing HOST_OBJTOP into the PATH would allow skipping legacy,
> # bootstrap-tools, and cross-tools. Need to ensure each tool actually
> # supports all TARGETS though.
> +# For now we only pass UNIVERSE_TOOLCHAIN_PATH which will be added at the end
> +# of STRICTTMPPATH to ensure that the target-specific binaries come first.
> MAKE_PARAMS_${target}+= \
> XCC="${HOST_OBJTOP}/tmp/usr/bin/cc" \
> XCXX="${HOST_OBJTOP}/tmp/usr/bin/c++" \
> - XCPP="${HOST_OBJTOP}/tmp/usr/bin/cpp"
> + XCPP="${HOST_OBJTOP}/tmp/usr/bin/cpp" \
> + UNIVERSE_TOOLCHAIN_PATH=${HOST_OBJTOP}/tmp/usr/bin
> .endif
> .if defined(_need_lld_${target}_${target_arch}) && \
> ${_need_lld_${target}_${target_arch}} == "yes"
>
> Modified: head/Makefile.inc1
> ==============================================================================
> --- head/Makefile.inc1 Mon Nov 5 19:25:57 2018 (r340156)
> +++ head/Makefile.inc1 Mon Nov 5 19:51:10 2018 (r340157)
> @@ -580,8 +580,21 @@ BUILD_ARCH!= uname -p
> WORLDTMP?= ${OBJTOP}/tmp
> BPATH= ${CCACHE_WRAPPER_PATH_PFX}${WORLDTMP}/legacy/usr/sbin:${WORLDTMP}/legacy/usr/bin:${WORLDTMP}/legacy/bin
> XPATH= ${WORLDTMP}/usr/sbin:${WORLDTMP}/usr/bin
> -STRICTTMPPATH= ${BPATH}:${XPATH}
> +
> +# When building we want to find the cross tools before the host tools in ${BPATH}.
> +# We also need to add UNIVERSE_TOOLCHAIN_PATH so that we can find the shared
> +# toolchain files (clang, lld, etc.) during make universe/tinderbox
> +STRICTTMPPATH= ${XPATH}:${BPATH}:${UNIVERSE_TOOLCHAIN_PATH}
> +# We should not be using tools from /usr/bin accidentally since this could cause
> +# the build to break on other systems that don't have that tool. For now we
> +# still allow using the old behaviour (inheriting $PATH) if
> +# BUILD_WITH_STRICT_TMPPATH is set to 0 but this will eventually be removed.
> +BUILD_WITH_STRICT_TMPPATH?=1
> +.if ${BUILD_WITH_STRICT_TMPPATH} != 0
> +TMPPATH= ${STRICTTMPPATH}
> +.else
> TMPPATH= ${STRICTTMPPATH}:${PATH}
> +.endif
>
> #
> # Avoid running mktemp(1) unless actually needed.
> @@ -589,8 +602,16 @@ TMPPATH= ${STRICTTMPPATH}:${PATH}
> # when in the middle of installing over this system.
> #
> .if make(distributeworld) || make(installworld) || make(stageworld)
> -INSTALLTMP!= mktemp -d -u -t install
> +.if ${BUILD_WITH_STRICT_TMPPATH} != 0
> +MKTEMP=${WORLDTMP}/legacy/usr/bin/mktemp
> +.if !exists(${MKTEMP})
> +.error "mktemp binary doesn't exist in expected location: ${MKTEMP}"
> .endif
> +.else
> +MKTEMP=mktemp
> +.endif
> +INSTALLTMP!= ${MKTEMP} -d -u -t install
> +.endif
>
> .if make(stagekernel) || make(distributekernel)
> TAGS+= kernel
> @@ -647,6 +668,8 @@ CROSSENV+= BUILD_TOOLS_META=.NOMETA
> CROSSENV+= ${TARGET_CFLAGS}
> .endif
>
> +BOOTSTRAPPING_OSRELDATE?=${OSRELDATE}
> +
> # bootstrap-tools stage
> BMAKEENV= INSTALL="sh ${.CURDIR}/tools/install.sh" \
> TOOLS_PREFIX=${TOOLS_PREFIX_UNDEF:U${WORLDTMP}} \
> @@ -658,7 +681,7 @@ BSARGS= DESTDIR= \
> OBJTOP='${WORLDTMP}/obj-tools' \
> OBJROOT='$${OBJTOP}/' \
> MAKEOBJDIRPREFIX= \
> - BOOTSTRAPPING=${OSRELDATE} \
> + BOOTSTRAPPING=${BOOTSTRAPPING_OSRELDATE} \
> BWPHASE=${.TARGET:C,^_,,} \
> SSP_CFLAGS= \
> MK_HTML=no NO_LINT=yes MK_MAN=no \
> @@ -680,7 +703,7 @@ TMAKE= \
> ${BMAKEENV} ${MAKE} ${WORLD_FLAGS} -f Makefile.inc1 \
> TARGET=${TARGET} TARGET_ARCH=${TARGET_ARCH} \
> DESTDIR= \
> - BOOTSTRAPPING=${OSRELDATE} \
> + BOOTSTRAPPING=${BOOTSTRAPPING_OSRELDATE} \
> BWPHASE=${.TARGET:C,^_,,} \
> SSP_CFLAGS= \
> -DNO_LINT \
> @@ -705,7 +728,7 @@ KTMAKE= \
> OBJTOP='${WORLDTMP}/obj-kernel-tools' \
> OBJROOT='$${OBJTOP}/' \
> MAKEOBJDIRPREFIX= \
> - BOOTSTRAPPING=${OSRELDATE} \
> + BOOTSTRAPPING=${BOOTSTRAPPING_OSRELDATE} \
> SSP_CFLAGS= \
> MK_HTML=no -DNO_LINT MK_MAN=no \
> -DNO_PIC MK_PROFILE=no -DNO_SHARED \
> @@ -874,6 +897,9 @@ WORLDTMP_MTREEFLAGS= -deUW
> DESTDIR_MTREEFLAGS+= -W
> .endif
> MTREE?= mtree
> +.if ${BUILD_WITH_STRICT_TMPPATH} != 0
> +MTREE= ${WORLDTMP}/legacy/usr/sbin/mtree
> +.endif
> WORLDTMP_MTREE= ${MTREE} ${WORLDTMP_MTREEFLAGS}
> DESTDIR_MTREE= ${MTREE} ${DESTDIR_MTREEFLAGS}
>
> @@ -948,10 +974,15 @@ _worldtmp: .PHONY
> .if !defined(NO_CLEAN)
> rm -rf ${WORLDTMP}
> .else
> +# Note: for delete-old we need to set $PATH to also include the host $PATH
> +# since otherwise a partial build with missing symlinks in ${WORLDTMP}/legacy/
> +# will fail to run due to missing binaries. $WMAKE sets PATH to only ${TMPPATH}
> +# so we remove that assingnment from $WMAKE and prepend the new $PATH
> ${_+_}@if [ -e "${WORLDTMP}" ]; then \
> echo ">>> Deleting stale files in build tree..."; \
> - cd ${.CURDIR}; ${WMAKE} -DBATCH_DELETE_OLD_FILES _NO_INCLUDE_COMPILERMK=t \
> - delete-old delete-old-libs >/dev/null; \
> + cd ${.CURDIR}; env PATH=${TMPPATH}:${PATH} ${WMAKE:NPATH=*} \
> + _NO_INCLUDE_COMPILERMK=t -DBATCH_DELETE_OLD_FILES delete-old \
> + delete-old-libs >/dev/null; \
> fi
> rm -rf ${WORLDTMP}/legacy/usr/include
> .if ${USING_SYSTEM_COMPILER} == "yes"
> @@ -972,6 +1003,11 @@ _worldtmp: .PHONY
> # available on the target system (this happens e.g. when building on non-FreeBSD)
> cd ${.CURDIR}/tools/build; \
> ${MAKE} DIRPRFX=tools/build/ DESTDIR=${WORLDTMP}/legacy installdirs
> +# In order to build without inheriting $PATH we need to add symlinks to the host
> +# tools in $WORLDTMP for the tools that we don't build during bootstrap-tools
> + cd ${.CURDIR}/tools/build; \
> + ${MAKE} DIRPRFX=tools/build/ DESTDIR=${WORLDTMP}/legacy host-symlinks
> +
> _legacy:
> @echo
> @echo "--------------------------------------------------------------"
> @@ -1969,6 +2005,29 @@ legacy: .PHONY
> #
> _bt= _bootstrap-tools
>
> +# We want to run the build with only ${WORLDTMP} in $PATH to ensure we don't
> +# accidentally run tools that are incompatible but happen to be in $PATH.
> +# This is especially important when building on Linux/MacOS where many of the
> +# programs used during the build accept different flags or generate different
> +# output. On those platforms we only symlink the tools known to be compatible
> +# (e.g. basic utilities such as mkdir) into ${WORLDTMP} and build all others
> +# from the FreeBSD sources during the bootstrap-tools stage.
> +# We want to build without the user's $PATH starting in the bootstrap-tools
> +# phase so the tools used in that phase (ln, cp, etc) must have already been
> +# linked to $WORLDTMP. The tools are listed in the _host_tools_to_symlink
> +# variable in tools/build/Makefile and are linked during the legacy phase.
> +# Since they could be Linux or MacOS binaries, too we must only use flags that
> +# are portable across operating systems.
> +
> +# If BOOTSTRAP_ALL_TOOLS is set we will build all the required tools from the
> +# current source tree. Otherwise we create a symlink to the version found in
> +# $PATH during the bootstrap-tools stage.
> +.if defined(BOOTSTRAP_ALL_TOOLS)
> +# BOOTSTRAPPING will be set on the command line so we can't override it here.
> +# Instead set BOOTSTRAPPING_OSRELDATE so that the value 0 is set ${BSARGS}
> +BOOTSTRAPPING_OSRELDATE:= 0
> +.endif
> +
> .if ${MK_GAMES} != "no"
> _strfile= usr.bin/fortune/strfile
> .endif
> @@ -1981,12 +2040,21 @@ _gperf= gnu/usr.bin/gperf
> _vtfontcvt= usr.bin/vtfontcvt
> .endif
>
> +# If we are not building the bootstrap because BOOTSTRAPPING is sufficient
> +# we symlink the host version to $WORLDTMP instead. By doing this we can also
> +# detect when a bootstrap tool is being used without the required MK_FOO.
> +# If you add a new bootstrap tool where we could also use the host version,
> +# please ensure that you also add a .else case where you add the tool to the
> +# _bootstrap_tools_links variable.
> .if ${BOOTSTRAPPING} < 1000033
> _m4= usr.bin/m4
> _lex= usr.bin/lex
> -
> -${_bt}-usr.bin/m4: ${_bt}-lib/libopenbsd
> -${_bt}-usr.bin/lex: ${_bt}-usr.bin/m4
> +# Note: lex needs m4 to build but m4 also depends on lex. However, lex can be
> +# bootstrapped so we build lex first.
> +${_bt}-usr.bin/m4: ${_bt}-lib/libopenbsd ${_bt}-usr.bin/yacc ${_bt}-${_lex}
> +_bt_lex_depend=${_bt}-usr.bin/lex ${_bt}-usr.bin/m4
> +.else
> +_bootstrap_tools_links+=m4 lex
> .endif
>
> # r245440 mtree -N support added
> @@ -1998,17 +2066,23 @@ _nmtree= lib/libmd \
>
> ${_bt}-lib/libnetbsd: ${_bt}-lib/libmd
> ${_bt}-usr.sbin/nmtree: ${_bt}-lib/libnetbsd
> +.else
> +_bootstrap_tools_links+=mtree
> .endif
>
> # r246097: log addition login.conf.db, passwd, pwd.db, and spwd.db with cat -l
> .if ${BOOTSTRAPPING} < 1000027
> _cat= bin/cat
> +.else
> +_bootstrap_tools_links+=cat
> .endif
>
> # r277259 crunchide: Correct 64-bit section header offset
> # r281674 crunchide: always include both 32- and 64-bit ELF support
> .if ${BOOTSTRAPPING} < 1100078
> _crunchide= usr.sbin/crunch/crunchide
> +.else
> +_bootstrap_tools_links+=crunchide
> .endif
>
> # r285986 crunchen: use STRIPBIN rather than STRIP
> @@ -2018,12 +2092,16 @@ _crunchide= usr.sbin/crunch/crunchide
> (${MK_AUTO_OBJ} == "yes" && ${BOOTSTRAPPING} < 1100114) || \
> (${MK_META_MODE} == "yes" && ${BOOTSTRAPPING} < 1200006)
> _crunchgen= usr.sbin/crunch/crunchgen
> +.else
> +_bootstrap_tools_links+=crunchgen
> .endif
>
> # r296926 -P keymap search path, MFC to stable/10 in r298297
> .if ${BOOTSTRAPPING} < 1003501 || \
> (${BOOTSTRAPPING} >= 1100000 && ${BOOTSTRAPPING} < 1100103)
> _kbdcontrol= usr.sbin/kbdcontrol
> +.else
> +_bootstrap_tools_links+=kbdcontrol
> .endif
>
> _yacc= lib/liby \
> @@ -2059,6 +2137,10 @@ _dtc= usr.bin/dtc
> _dtc= gnu/usr.bin/dtc
> .endif
>
> +.if ${MK_LOCALES} != "no"
> +_localedef= usr.bin/localedef
> +.endif
> +
> .if ${MK_KERBEROS} != "no"
> _kerberos5_bootstrap_tools= \
> kerberos5/tools/make-roken \
> @@ -2069,12 +2151,108 @@ _kerberos5_bootstrap_tools= \
> usr.bin/compile_et
>
> .ORDER: ${_kerberos5_bootstrap_tools:C/^/${_bt}-/g}
> +.for _tool in ${_kerberos5_bootstrap_tools}
> +${_bt}-${_tool}: ${_bt}-usr.bin/yacc ${_bt_lex_depend}
> +.endfor
> .endif
>
> ${_bt}-usr.bin/mandoc: ${_bt}-lib/libopenbsd
>
> -bootstrap-tools: .PHONY
> +# The tools listed in _basic_bootstrap_tools will generally not be
> +# bootstrapped unless BOOTSTRAP_ALL_TOOL is set. However, when building on a
> +# Linux or MacOS host the host versions are incompatible so we need to build
> +# them from the source tree. Usually the link name will be the same as the subdir,
> +# but some directories such as grep or test install multiple binaries. In that
> +# case we use the _basic_bootstrap_tools_multilink variable which is a list of
> +# subdirectory and comma-separated list of files.
> +_basic_bootstrap_tools_multilink=usr.bin/grep grep,egrep,fgrep
> +_basic_bootstrap_tools_multilink+=bin/test test,[
> +# bootstrap tools needed by buildworld:
> +_basic_bootstrap_tools=usr.bin/awk usr.bin/cut bin/expr usr.bin/gencat \
> + usr.bin/join usr.bin/mktemp bin/rmdir usr.bin/sed usr.bin/sort \
> + usr.bin/truncate usr.bin/tsort
> +# elf2aout is required for sparc64 build
> +_basic_bootstrap_tools+=usr.bin/elf2aout
> +# file2c is required for building usr.sbin/config:
> +_basic_bootstrap_tools+=usr.bin/file2c
> +# uuencode/uudecode required for share/tabset
> +_basic_bootstrap_tools+=usr.bin/uuencode usr.bin/uudecode
> +# xargs is required by mkioctls
> +_basic_bootstrap_tools+=usr.bin/xargs
> +# cap_mkdb is required for share/termcap:
> +_basic_bootstrap_tools+=usr.bin/cap_mkdb
> +# ldd is required for installcheck (TODO: just always use /usr/bin/ldd instead?)
> +_basic_bootstrap_tools+=usr.bin/ldd
> +# services_mkdb/pwd_mkdb are required for installworld:
> +_basic_bootstrap_tools+=usr.sbin/services_mkdb usr.sbin/pwd_mkdb
> +# sysctl/chflags are required for installkernel:
> +_basic_bootstrap_tools+=sbin/sysctl bin/chflags
>
> +.if ${MK_AMD} != "no"
> +# unifdef is only used by usr.sbin/amd/libamu/Makefile
> +_basic_bootstrap_tools+=usr.bin/unifdef
> +.endif
> +
> +.if ${MK_BOOT} != "no"
> +_basic_bootstrap_tools+=usr.sbin/btxld
btxld exist only on amd64/i386, so this commit breaks native buildworld
for all other architectures.
See:
--------------------------------------------------------------
>>> stage 1.2: bootstrap tools
--------------------------------------------------------------
cd /usr/src; INSTALL="sh /usr/src/tools/install.sh"
TOOLS_PREFIX=/usr/obj/usr/src/arm.armv7/tmp
PATH=/usr/obj/usr/src/arm.armv7/tmp/legacy/usr/sbin:/usr/obj/usr/src/arm.armv7/tmp/legacy/usr/bin:/usr/obj/usr/src/arm.armv7/tmp/legacy/bin:/sbin:/bin:/usr/sbin:/usr/bin
WORLDTMP=/usr/obj/usr/src/arm.armv7/tmp MAKEFLAGS="-m
/usr/src/tools/build/mk -m /usr/src/share/mk" make -f Makefile.inc1
DESTDIR= OBJTOP='/usr/obj/usr/src/arm.armv7/tmp/obj-tools'
OBJROOT='${OBJTOP}/' MAKEOBJDIRPREFIX= BOOTSTRAPPING=1300002
BWPHASE=bootstrap-tools SSP_CFLAGS= MK_HTML=no NO_LINT=yes MK_MAN=no
-DNO_PIC MK_PROFILE=no -DNO_SHARED -DNO_CPU_CFLAGS MK_WARNS=no
MK_CTF=no MK_CLANG_EXTRAS=no MK_CLANG_FULL=no MK_LLDB=no
MK_RETPOLINE=no MK_TESTS=no MK_INCLUDES=yes MK_LLVM_TARGET_ALL=no
bootstrap-tools
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/m4 -> /usr/bin/m4
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/lex -> /usr/bin/lex
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/mtree -> /usr/sbin/mtree
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/cat -> /bin/cat
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/crunchide -> /usr/bin/crunchide
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/crunchgen -> /usr/bin/crunchgen
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/kbdcontrol -> /usr/sbin/kbdcontrol
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/awk -> /usr/bin/awk
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/cut -> /usr/bin/cut
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/expr -> /bin/expr
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/gencat -> /usr/bin/gencat
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/join -> /usr/bin/join
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/mktemp -> /usr/bin/mktemp
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/rmdir -> /bin/rmdir
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/sed -> /usr/bin/sed
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/sort -> /usr/bin/sort
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/truncate -> /usr/bin/truncate
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/tsort -> /usr/bin/tsort
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/elf2aout -> /usr/bin/elf2aout
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/file2c -> /usr/bin/file2c
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/uuencode -> /usr/bin/uuencode
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/uudecode -> /usr/bin/uudecode
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/xargs -> /usr/bin/xargs
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/cap_mkdb -> /usr/bin/cap_mkdb
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/ldd -> /usr/bin/ldd
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/services_mkdb ->
/usr/sbin/services_mkdb
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/pwd_mkdb -> /usr/sbin/pwd_mkdb
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/sysctl -> /sbin/sysctl
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/chflags -> /bin/chflags
/usr/obj/usr/src/arm.armv7/tmp/legacy/bin/unifdef -> /usr/bin/unifdef
*** Error code 1
Stop.
make[2]: stopped in /usr/src
*** Error code 1
Stop.
make[1]: stopped in /usr/src
*** Error code 1
Stop.
> +_basic_bootstrap_tools+=bin/dd
> +# xz/unxz is used by EFI
> +_basic_bootstrap_tools_multilink+=usr.bin/xz xz,unxz
> +# md5 is used by boot/beri (and possibly others)
> +_basic_bootstrap_tools+=sbin/md5
> +.if defined(BOOTSTRAP_ALL_TOOLS)
> +${_bt}-sbin/md5: ${_bt}-lib/libmd
> +.endif
> +.endif
> +
> +.if ${MK_ZONEINFO} != "no"
> +_basic_bootstrap_tools+=usr.sbin/zic usr.sbin/tzsetup
> +.endif
> +
> +.if defined(BOOTSTRAP_ALL_TOOLS)
> +_other_bootstrap_tools+=${_basic_bootstrap_tools}
> +.for _subdir _links in ${_basic_bootstrap_tools_multilink}
> +_other_bootstrap_tools+=${_subdir}
> +.endfor
> +${_bt}-usr.bin/awk: ${_bt_lex_depend} ${_bt}-usr.bin/yacc
> +${_bt}-bin/expr: ${_bt_lex_depend} ${_bt}-usr.bin/yacc
> +# If we are bootstrapping file2c, we have to build it before config:
> +${_bt}-usr.sbin/config: ${_bt}-usr.bin/file2c ${_bt_lex_depend}
> +# Note: no symlink to make/bmake in the !BOOTSTRAP_ALL_TOOLS case here since
> +# the links to make/bmake make links will have already have been created in the
> +# `make legacy` step. Not adding a link to make is important on non-FreeBSD
> +# since "make" will usually point to GNU make there.
> +_other_bootstrap_tools+=usr.bin/bmake
> +.else
> +# All tools in _basic_bootstrap_tools have the same name as the subdirectory
> +# so we can use :T to get the name of the symlinks that we need to create.
> +_bootstrap_tools_links+=${_basic_bootstrap_tools:T}
> +.for _subdir _links in ${_basic_bootstrap_tools_multilink}
> +_bootstrap_tools_links+=${_links:S/,/ /g}
> +.endfor
> +.endif # defined(BOOTSTRAP_ALL_TOOLS)
> +
> +# Link the tools that we need for building but don't need to bootstrap because
> +# the host version is known to be compatible into ${WORLDTMP}/legacy
> +# We do this before building any of the bootstrap tools in case they depend on
> +# the presence of any of the links (e.g. as m4/lex/awk)
> +${_bt}-links: .PHONY
> +
> +.for _tool in ${_bootstrap_tools_links}
> +${_bt}-link-${_tool}: .PHONY .MAKE
> + @if [ ! -e "${WORLDTMP}/legacy/bin/${_tool}" ]; then \
> + source_path=`which ${_tool}`; \
> + if [ ! -e "$${source_path}" ] ; then \
> + echo "Cannot find host tool '${_tool}'"; false; \
> + fi; \
> + ln -sfnv "$${source_path}" "${WORLDTMP}/legacy/bin/${_tool}"; \
> + fi
> +${_bt}-links: ${_bt}-link-${_tool}
> +.endfor
> +
> +
> +bootstrap-tools: ${_bt}-links .PHONY
> +
> # Please document (add comment) why something is in 'bootstrap-tools'.
> # Try to bound the building of the bootstrap-tool to just the
> # FreeBSD versions that need the tool built at this stage of the build.
> @@ -2093,6 +2271,7 @@ bootstrap-tools: .PHONY
> ${_yacc} \
> ${_m4} \
> ${_lex} \
> + ${_other_bootstrap_tools} \
> usr.bin/xinstall \
> ${_gensnmptree} \
> usr.sbin/config \
> @@ -2101,10 +2280,13 @@ bootstrap-tools: .PHONY
> ${_nmtree} \
> ${_vtfontcvt} \
> ${_localedef}
> -${_bt}-${_tool}: .PHONY .MAKE
> +${_bt}-${_tool}: ${_bt}-links .PHONY .MAKE
> ${_+_}@${ECHODIR} "===> ${_tool} (obj,all,install)"; \
> cd ${.CURDIR}/${_tool}; \
> if [ -z "${NO_OBJWALK}" ]; then ${MAKE} DIRPRFX=${_tool}/ obj; fi; \
> + if [ "${_tool}" = "usr.bin/lex" ]; then \
> + ${MAKE} DIRPRFX=${_tool}/ bootstrap; \
> + fi; \
> ${MAKE} DIRPRFX=${_tool}/ all; \
> ${MAKE} DIRPRFX=${_tool}/ DESTDIR=${WORLDTMP}/legacy install
>
> @@ -2235,9 +2417,14 @@ _gcc= gnu/usr.bin/cc
> _usb_tools= stand/usb/tools
> .endif
>
> +.if ${BUILD_WITH_STRICT_TMPPATH} != 0 || defined(BOOTSTRAP_ALL_TOOLS)
> +_ar=usr.bin/ar
> +.endif
> +
> cross-tools: .MAKE .PHONY
> .for _tool in \
> ${LOCAL_XTOOL_DIRS} \
> + ${_ar} \
> ${_clang_libs} \
> ${_clang} \
> ${_lld} \
>
> Modified: head/tools/build/Makefile
> ==============================================================================
> --- head/tools/build/Makefile Mon Nov 5 19:25:57 2018 (r340156)
> +++ head/tools/build/Makefile Mon Nov 5 19:51:10 2018 (r340157)
> @@ -59,15 +59,64 @@ SUBDIR= cross-build
> # Needed to build config (since it uses libnv)
> SYSINCS+= ${SRCTOP}/sys/sys/nv.h ${SRCTOP}/sys/sys/cnv.h
>
> +# We want to run the build with only ${WORLDTMP} in $PATH to ensure we don't
> +# accidentally run tools that are incompatible but happen to be in $PATH.
> +# This is especially important when building on Linux/MacOS where many of the
> +# programs used during the build accept different flags or generate different
> +# output. On those platforms we only symlink the tools known to be compatible
> +# (e.g. basic utilities such as mkdir) into ${WORLDTMP} and build all others
> +# from the FreeBSD sources during the bootstrap-tools stage.
>
> +# basic commands: It is fine to use the host version for all of these even on
> +# Linux/MacOS since we only use flags that are supported by all of them.
> +_host_tools_to_symlink= basename bzip2 bunzip2 chmod chown cmp comm cp date \
> + dirname echo env false find fmt gzip gunzip head hostname id ln ls \
> + mkdir mv nice patch rm realpath sh sleep stat tee touch tr true uname \
> + uniq wc which
> +
> +# We also need a symlink to the absolute path to the make binary used for
> +# the toplevel makefile. This is not necessarily the same as `which make`
> +# since e.g. on Linux and MacOS that will be GNU make.
> +_make_abs!= which "${MAKE}"
> +_host_abs_tools_to_symlink= ${_make_abs}:make ${_make_abs}:bmake
> +
> +host-symlinks:
> + @echo "Linking host tools into ${DESTDIR}/bin"
> +.for _tool in ${_host_tools_to_symlink}
> + @if [ ! -e "${DESTDIR}/bin/${_tool}" ]; then \
> + source_path=`which ${_tool}`; \
> + if [ ! -e "$${source_path}" ] ; then \
> + echo "Cannot find host tool '${_tool}'"; false; \
> + fi; \
> + ln -sfnv "$${source_path}" "${DESTDIR}/bin/${_tool}"; \
> + fi
> +.endfor
> +.for _tool in ${_host_abs_tools_to_symlink}
> + @source_path="${_tool:S/:/ /:[1]}"; \
> + target_path="${DESTDIR}/bin/${_tool:S/:/ /:[2]}"; \
> + if [ ! -e "$${target_path}" ] ; then \
> + if [ ! -e "$${source_path}" ] ; then \
> + echo "Host tool '${src_path}' is missing"; false; \
> + fi; \
> + ln -sfnv "$${source_path}" "$${target_path}"; \
> + fi
> +.endfor
> +
> # Create all the directories that are needed during the legacy, bootstrap-tools
> # and cross-tools stages. We do this here using mkdir since mtree may not exist
> # yet (this happens if we are crossbuilding from Linux/Mac).
> installdirs:
> -.for _dir in bin sbin usr/bin usr/sbin usr/lib usr/include lib/geom lib/casper
> +.for _dir in bin usr/lib usr/include lib/geom lib/casper
> mkdir -p "${DESTDIR}/${_dir}"
> .endfor
> -
> +# Link usr/bin, sbin, and usr/sbin to bin so that it doesn't matter whether a
> +# bootstrap tool was added to WORLTMP with a symlink or by building it in the
> +# bootstrap-tools phase. We could also overrride BINDIR when building bootstrap
> +# tools but adding the symlinks is easier and means all tools are also
> +# in the directory that they are installed to normally.
> + ln -sf bin ${DESTDIR}/sbin
> + ln -sf ../bin ${DESTDIR}/usr/bin
> + ln -sf ../bin ${DESTDIR}/usr/sbin
> .for _group in ${INCSGROUPS:NINCS}
> mkdir -p "${DESTDIR}/${${_group}DIR}"
> .endfor
>
> Modified: head/tools/tools/nanobsd/embedded/common
> ==============================================================================
> --- head/tools/tools/nanobsd/embedded/common Mon Nov 5 19:25:57 2018 (r340156)
> +++ head/tools/tools/nanobsd/embedded/common Mon Nov 5 19:51:10 2018 (r340157)
> @@ -671,4 +671,4 @@ create_diskimage ( ) (
> # Set the path to the same path we use for buldworld to use latest mkimg
> NANO_TARGET=$(cd ${NANO_SRC}; ${NANO_MAKE} TARGET_ARCH=${NANO_ARCH} -V _TARGET)
> NANO_TMPPATH=$(cd ${NANO_SRC}; ${NANO_MAKE} MK_AUTO_OBJ=no TARGET=${NANO_TARGET} TARGET_ARCH=${NANO_ARCH} -f Makefile.inc1 buildenv -V TMPPATH)
> -export PATH="${NANO_TMPPATH}"
> +export PATH="${NANO_TMPPATH}:${PATH}"
>
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