#       $NetBSD: Makefile,v 1.341 2025/06/04 06:01:59 rillig Exp $

#
# This is the top-level makefile for building NetBSD. For an outline of
# how to build a snapshot or release, as well as other release engineering
# information, see http://www.NetBSD.org/developers/releng/index.html
#
# Not everything you can set or do is documented in this makefile. In
# particular, you should review the files in /usr/share/mk (especially
# bsd.README) for general information on building programs and writing
# Makefiles within this structure, and see the comments in src/etc/Makefile
# for further information on installation and release set options.
#
# Variables listed below can be set on the make command line (highest
# priority), in /etc/mk.conf (middle priority), or in the environment
# (lowest priority).
#
# Variables:
#   DESTDIR is the target directory for installation of the compiled
#       software. It defaults to /. Note that programs are built against
#       libraries installed in DESTDIR.
#   MKMAN, if `no', will prevent building of manual pages.
#   MKOBJDIRS, if not `no', will build object directories at
#       an appropriate point in a build.
#   MKSHARE, if `no', will prevent building and installing
#       anything in /usr/share.
#   MKUPDATE, if not `no', will avoid a `make cleandir' at the start of
#       `make build', as well as having the effects listed in mk.conf(5).
#   NOCLEANDIR, if defined, will avoid a `make cleandir' at the start
#       of the `make build'.
#   NOINCLUDES will avoid the `make includes' usually done by `make build'.
#   NOBINARIES will not build binaries, only includes and libraries
#
#   See mk.conf(5) for more details.
#
#
# Targets:
#   build:
#       Builds a full release of NetBSD in DESTDIR, except for the
#       /etc configuration files.
#       If BUILD_DONE is set, this is an empty target.
#   distribution:
#       Builds a full release of NetBSD in DESTDIR, including the /etc
#       configuration files.
#   buildworld:
#       As per `make distribution', except that it ensures that DESTDIR
#       is not the root directory.
#   installworld:
#       Install the distribution from DESTDIR to INSTALLWORLDDIR (which
#       defaults to the root directory).  Ensures that INSTALLWORLDDIR
#       is not the root directory if cross compiling.
#   release:
#       Does a `make distribution', and then tars up the DESTDIR files
#       into ${RELEASEDIR}/${RELEASEMACHINEDIR}, in release(7) format.
#       (See etc/Makefile for more information on this.)
#   regression-tests:
#       Runs the regression tests in "regress" on this host.
#   sets:
#       Populate ${RELEASEDIR}/${RELEASEMACHINEDIR}/binary/sets
#       from ${DESTDIR}
#   sourcesets:
#       Populate ${RELEASEDIR}/source/sets from ${NETBSDSRCDIR}
#   syspkgs:
#       Populate ${RELEASEDIR}/${RELEASEMACHINEDIR}/binary/syspkgs
#       from ${DESTDIR}
#   iso-image:
#       Create CD-ROM image in RELEASEDIR/images.
#       RELEASEDIR must already have been populated by `make release'
#       or equivalent.
#   iso-image-source:
#       Create CD-ROM image with source in RELEASEDIR/images.
#       RELEASEDIR must already have been populated by
#       `make release sourcesets' or equivalent.
#   live-image:
#       Create bootable live image for emulators or USB stick etc.
#       in RELEASEDIR/liveimage.
#       RELEASEDIR must already have been populated by `make release'
#       or equivalent.
#   install-image:
#       Create bootable installation image for USB stick etc.
#       in RELEASEDIR/installimage.
#       RELEASEDIR must already have been populated by `make release'
#       or equivalent.
#
# Targets invoked by `make build,' in order:
#   cleandir:        cleans the tree.
#   do-top-obj:      creates the top level object directory.
#   do-tools-obj:    creates object directories for the host toolchain.
#   do-tools:        builds host toolchain.
#   params:          create params file with various make(1) parameters.
#   show-params:     show various make(1) parameters.
#   obj:             creates object directories.
#   do-distrib-dirs: creates the distribution directories.
#   includes:        installs include files.
#   do-lib:          builds and installs prerequisites from lib.
#   do-compat-lib:   builds and installs prerequisites from compat/lib
#                    if ${MKCOMPAT} != "no".
#   do-x11:          builds and installs X11 tools and libraries
#                    from src/external/mit/xorg if ${MKX11} != "no".
#   do-build:        builds and installs the entire system.
#   do-obsolete:     installs the obsolete sets (for the postinstall-* targets).
#

if ${.MAKEFLAGS:M${.CURDIR}/share/mk} == ""
MAKEFLAGS: -m ${.CURDIR}/share/mk
endif

#
# If _SRC_TOP_OBJ_ gets set here, we will end up with a directory that may
# not be the top level objdir, because "make obj" can happen in the *middle*
# of "make build" (long after <bsd.own.mk> is calculated it).  So, pre-set
# _SRC_TOP_OBJ_ here so it will not be added to ${.MAKEOVERRIDES}.
#
_SRC_TOP_OBJ_=

include <bsd.own.mk>

#
# Sanity check: make sure that "make build" is not invoked simultaneously
# with a standard recursive target.
#

if make(build) || make(release) || make(snapshot)
for targ in ${TARGETS:Nobj:Ncleandir}
if make(${targ}) && !target(.BEGIN)
BEGIN:
       @echo 'BUILD ABORTED: "make build" and "make ${targ}" are mutually exclusive.'
       @false
endif
endfor
endif

#
# _SUBDIR is used to set SUBDIR, after removing directories that have
# BUILD_${dir}=no, or that have no ${dir}/Makefile.
#
_SUBDIR=        tools .WAIT lib
if ${MKLLVM} != "no"
_SUBDIR+=       external/bsd/compiler_rt
endif
_SUBDIR+=       include external crypto/external bin
_SUBDIR+=       games libexec sbin usr.bin
_SUBDIR+=       usr.sbin share sys etc tests compat
_SUBDIR+=       .WAIT rescue .WAIT distrib regress

for dir in ${_SUBDIR}
if "${dir}" == ".WAIT" \
       || (${BUILD_${dir}:Uyes} != "no" && exists(${dir}/Makefile))
SUBDIR+=        ${dir}
endif
endfor

if exists(regress)
regression-tests: .PHONY .MAKE
       @echo Running regression tests...
       ${MAKEDIRTARGET} regress regress
endif

if ${MKUNPRIVED} != "no"
NOPOSTINSTALL=  # defined
endif

afterinstall: .PHONY .MAKE
if ${MKMAN} != "no"
       ${MAKEDIRTARGET} share/man makedb
endif
if (${MKUNPRIVED} != "no" && ${MKINFO} != "no")
       ${MAKEDIRTARGET} external/gpl2/texinfo/bin/install-info infodir-meta
endif
if !defined(NOPOSTINSTALL)
       ${MAKEDIRTARGET} . postinstall-check
endif

_POSTINSTALL=   ${:!cd ${.CURDIR}/usr.sbin/postinstall && \
                       ${MAKE} -B -v .OBJDIR!}/postinstall  \
               -m ${MACHINE} -a ${MACHINE_ARCH}
_POSTINSTALL_ENV= \
       AWK=${TOOL_AWK:Q}               \
       DB=${TOOL_DB:Q}                 \
       HOST_SH=${HOST_SH:Q}            \
       MAKE=${MAKE:Q}                  \
       PWD_MKDB=${TOOL_PWD_MKDB:Q}     \
       SED=${TOOL_SED:Q}               \
       STAT=${TOOL_STAT:Q}

if ${MKX11} != "no"
_POSTINSTALL_X11=-x ${X11SRCDIR:Q}
endif

postinstall-check: .PHONY
       @echo "   === Post installation checks ==="
       ${_POSTINSTALL_ENV} ${HOST_SH} ${_POSTINSTALL} -s ${.CURDIR} ${_POSTINSTALL_X11} -d ${DESTDIR:C/^\/$//}/ check; if [ $$? -gt 1 ]; then exit 1; fi
       @echo "   ================================"

postinstall-fix: .NOTMAIN .PHONY
       @echo "   === Post installation fixes ==="
       ${_POSTINSTALL_ENV} ${HOST_SH} ${_POSTINSTALL} -s ${.CURDIR} ${_POSTINSTALL_X11} -d ${DESTDIR:C/^\/$//}/ fix
       @echo "   ==============================="

postinstall-fix-obsolete: .NOTMAIN .PHONY
       @echo "   === Removing obsolete files ==="
       ${_POSTINSTALL_ENV} ${HOST_SH} ${_POSTINSTALL} -s ${.CURDIR} ${_POSTINSTALL_X11} -d ${DESTDIR:C/^\/$//}/ fix obsolete
       @echo "   ==============================="

postinstall-fix-obsolete_stand: .NOTMAIN .PHONY
       @echo "   === Removing obsolete files ==="
       ${_POSTINSTALL_ENV} ${HOST_SH} ${_POSTINSTALL} -s ${.CURDIR} ${_POSTINSTALL_X11} -d ${DESTDIR:C/^\/$//}/ fix obsolete_stand
       ${_POSTINSTALL_ENV} ${HOST_SH} ${_POSTINSTALL} -s ${.CURDIR} ${_POSTINSTALL_X11} -d ${DESTDIR:C/^\/$//}/ fix obsolete_stand_debug
       @echo "   ==============================="


#
# Targets (in order!) called by "make build".
#
BUILDTARGETS+=  check-tools
if ${MKUPDATE} == "no" && !defined(NOCLEANDIR)
BUILDTARGETS+=  cleandir
endif
if ${MKOBJDIRS} != "no"
BUILDTARGETS+=  do-top-obj
endif
if ${USETOOLS} == "yes" # {
if ${MKOBJDIRS} != "no"
BUILDTARGETS+=  do-tools-obj
endif
BUILDTARGETS+=  do-tools
endif # USETOOLS                # }
BUILDTARGETS+=  params
if ${MKOBJDIRS} != "no"
BUILDTARGETS+=  obj
endif
BUILDTARGETS+=  clean_METALOG
if !defined(NODISTRIBDIRS)
BUILDTARGETS+=  do-distrib-dirs
endif
if !defined(NOINCLUDES)
BUILDTARGETS+=  includes
endif
BUILDTARGETS+=  do-lib
BUILDTARGETS+=  do-compat-lib
if ${MKLLVM} != "no"
BUILDTARGETS+=  do-sanitizer
if ${MKSANITIZER:Uno} == "yes"
BUILDTARGETS+=  do-sanitizer-tools
endif
endif
if ${MKX11} != "no"
BUILDTARGETS+=  do-x11
endif
if !defined(NOBINARIES)
BUILDTARGETS+=  do-build
BUILDTARGETS+=  do-obsolete
endif

#
# Enforce proper ordering of some rules.
#

ORDER:          ${BUILDTARGETS}
includes-lib:   .PHONY includes-include includes-sys

#
# Record the values of variables that might affect the build.
# If no values have changed, avoid updating the timestamp
# of the params file.
#
# This is referenced by _NETBSD_VERSION_DEPENDS in <bsd.own.mk>.
#
include "${NETBSDSRCDIR}/etc/Makefile.params"
CLEANDIRFILES+= params
params: .EXEC
       ${_MKMSG_CREATE} params
       @${:D make}${PRINT_PARAMS} >${.TARGET}.new
       @if cmp -s ${.TARGET}.new ${.TARGET} > /dev/null 2>&1; then \
               : "params is unchanged" ; \
               rm ${.TARGET}.new ; \
       else \
               : "params has changed or is new" ; \
               mv ${.TARGET}.new ${.TARGET} ; \
       fi

#
# Display current make(1) parameters
#
show-params: .PHONY .MAKE
       @${PRINT_PARAMS}

#
# Build the system and install into DESTDIR.
#

START_TIME!=    date

build: .PHONY .MAKE
if defined(BUILD_DONE)
       @echo "Build already installed into ${DESTDIR}"
else
       @echo "Build started at: ${START_TIME}"
for tgt in ${BUILDTARGETS}
       ${MAKEDIRTARGET} . ${tgt}
endfor
       ${MAKEDIRTARGET} etc install-etc-release
       @echo   "Build started at:  ${START_TIME}"
       @printf "Build finished at: " && date
endif

#
# Build a full distribution, but not a release (i.e. no sets into
# ${RELEASEDIR}).  "buildworld" enforces a build to ${DESTDIR} != /
#

distribution buildworld: .PHONY .MAKE
if make(buildworld) && \
   (!defined(DESTDIR) || ${DESTDIR} == "" || ${DESTDIR} == "/")
       @echo "Won't make ${.TARGET} with DESTDIR=/"
       @false
endif
       ${MAKEDIRTARGET} . build NOPOSTINSTALL=1
       ${MAKEDIRTARGET} etc distribution INSTALL_DONE=1
if defined(DESTDIR) && ${DESTDIR} != "" && ${DESTDIR} != "/"
       ${MAKEDIRTARGET} . postinstall-fix-obsolete
       ${MAKEDIRTARGET} . postinstall-fix-obsolete_stand
       ${:D make}${MAKEDIRTARGET} distrib/sets checkflist
endif
       @echo   "make ${.TARGET} started at:  ${START_TIME}"
       @printf "make ${.TARGET} finished at: " && date

#
# Install the distribution from $DESTDIR to $INSTALLWORLDDIR (defaults to `/')
# If installing to /, ensures that the host's operating system is NetBSD and
# the host's `uname -m` == ${MACHINE}.
#

HOST_UNAME_S!=  uname -s
HOST_UNAME_M!=  uname -m

installworld: .PHONY .MAKE
if (!defined(DESTDIR) || ${DESTDIR} == "" || ${DESTDIR} == "/")
       @echo "Can't make ${.TARGET} to DESTDIR=/"
       @false
endif
if !defined(INSTALLWORLDDIR) || \
   ${INSTALLWORLDDIR} == "" || ${INSTALLWORLDDIR} == "/"
if (${HOST_UNAME_S} != "NetBSD")
       @echo "Won't cross-make ${.TARGET} from ${HOST_UNAME_S} to NetBSD with INSTALLWORLDDIR=/"
       @false
endif
if (${HOST_UNAME_M} != ${MACHINE})
       @echo "Won't cross-make ${.TARGET} from ${HOST_UNAME_M} to ${MACHINE} with INSTALLWORLDDIR=/"
       @false
endif
endif
       ${MAKEDIRTARGET} distrib/sets installsets \
               INSTALLDIR=${INSTALLWORLDDIR:U/} INSTALLSETS=${INSTALLSETS:Q}
       ${MAKEDIRTARGET} . postinstall-check DESTDIR=${INSTALLWORLDDIR}
       @echo   "make ${.TARGET} started at:  ${START_TIME}"
       @printf "make ${.TARGET} finished at: " && date

#
# Install modules from $DESTDIR to $INSTALLMODULESDIR
#
installmodules: .PHONY .MAKE
if (!defined(DESTDIR) || ${DESTDIR} == "" || ${DESTDIR} == "/")
       @echo "Can't make ${.TARGET} to DESTDIR=/"
       @false
endif
if !defined(INSTALLMODULESDIR) || \
   ${INSTALLMODULESDIR} == "" || ${INSTALLMODULESDIR} == "/"
if (${HOST_UNAME_S} != "NetBSD")
       @echo "Won't cross-make ${.TARGET} from ${HOST_UNAME_S} to NetBSD with INSTALLMODULESDIR=/"
       @false
endif
if (${HOST_UNAME_M} != ${MACHINE})
       @echo "Won't cross-make ${.TARGET} from ${HOST_UNAME_M} to ${MACHINE} with INSTALLMODULESDIR=/"
       @false
endif
endif
       ${MAKEDIRTARGET} sys/modules install DESTDIR=${INSTALLMODULESDIR:U/}
       @echo   "make ${.TARGET} started at:  ${START_TIME}"
       @printf "make ${.TARGET} finished at: " && date

#
# Create sets from $DESTDIR or $NETBSDSRCDIR into $RELEASEDIR
#

for tgt in sets sourcesets syspkgs
${tgt}: .PHONY .MAKE
       ${MAKEDIRTARGET} distrib/sets ${tgt}
endfor

#
# Build a release or snapshot (implies "make distribution").  Note that
# in this case, the set lists will be checked before the tar files
# are made.
#

release snapshot: .PHONY .MAKE
       ${MAKEDIRTARGET} . distribution
       ${MAKEDIRTARGET} etc release DISTRIBUTION_DONE=1
       @echo   "make ${.TARGET} started at:  ${START_TIME}"
       @printf "make ${.TARGET} finished at: " && date

#
# Create a CD-ROM image.
#

iso-image: .PHONY
       ${MAKEDIRTARGET} distrib iso_image
       ${MAKEDIRTARGET} etc iso-image
       @echo   "make ${.TARGET} started at:  ${START_TIME}"
       @printf "make ${.TARGET} finished at: " && date

iso-image-source: .PHONY
       ${MAKEDIRTARGET} distrib iso_image CDSOURCE=true
       ${MAKEDIRTARGET} etc iso-image
       @echo   "make ${.TARGET} started at:  ${START_TIME}"
       @printf "make ${.TARGET} finished at: " && date

#
# Create bootable live images.
#

live-image: .PHONY
       ${MAKEDIRTARGET} etc live-image
       @echo   "make ${.TARGET} started at:  ${START_TIME}"
       @printf "make ${.TARGET} finished at: " && date

#
# Create bootable installation images.
#

install-image: .PHONY
       ${MAKEDIRTARGET} etc install-image
       @echo   "make ${.TARGET} started at:  ${START_TIME}"
       @printf "make ${.TARGET} finished at: " && date

#
# Special components of the "make build" process.
#

check-tools: .PHONY
if ${TOOLCHAIN_MISSING} != "no" && !defined(EXTERNAL_TOOLCHAIN)
       @echo '*** WARNING:  Building on MACHINE=${MACHINE} with missing toolchain.'
       @echo '*** May result in a failed build or corrupt binaries!'
elif defined(EXTERNAL_TOOLCHAIN)
       @echo '*** Using external toolchain rooted at ${EXTERNAL_TOOLCHAIN}.'
endif

# Delete or sanitise a leftover METALOG from a previous build.
clean_METALOG: .PHONY .MAKE
if ${MKUPDATE} != "no"
       ${MAKEDIRTARGET} distrib/sets clean_METALOG
endif

do-distrib-dirs: .PHONY .MAKE
if !defined(DESTDIR) || ${DESTDIR} == ""
       ${MAKEDIRTARGET} etc distrib-dirs DESTDIR=/
else
       ${MAKEDIRTARGET} etc distrib-dirs DESTDIR=${DESTDIR}
endif

for targ in cleandir obj includes
do-${targ}: .PHONY ${targ}
       @true
endfor

do-tools: .PHONY .MAKE
       ${MAKEDIRTARGET} tools build_install

do-lib: .PHONY .MAKE
       ${MAKEDIRTARGET} lib build_install

do-compat-lib: .PHONY .MAKE
       ${MAKEDIRTARGET} compat build_install BOOTSTRAP_SUBDIRS="../../../lib"

do-sanitizer: .PHONY .MAKE
       ${MAKEDIRTARGET} external/bsd/compiler_rt build_install

do-sanitizer-tools: .PHONY .MAKE
if !exists(${TOOLDIR}/lib/clang) && ${HAVE_LLVM:Uno} == "yes"
       mkdir -p ${TOOLDIR}/lib/clang
       cd ${DESTDIR}/usr/lib/clang && \
               ${TOOL_PAX} -rw . ${TOOLDIR}/lib/clang
endif

do-top-obj: .PHONY .MAKE
       ${MAKEDIRTARGET} . obj NOSUBDIR=

do-tools-obj: .PHONY .MAKE
       ${MAKEDIRTARGET} tools obj

do-build: .PHONY .MAKE
for targ in dependall install
       ${MAKEDIRTARGET} . ${targ} BUILD_tools=no BUILD_lib=no
endfor

do-x11: .PHONY .MAKE
if ${MKX11} != "no"
       ${MAKEDIRTARGET} external/mit/xorg/tools all
       ${MAKEDIRTARGET} external/mit/xorg/lib build_install
if ${MKCOMPATX11} != "no"
       ${MAKEDIRTARGET} compat build_install BOOTSTRAP_SUBDIRS="../../../external/mit/xorg/lib"
endif
else
       @echo "MKX11 is not enabled"
       @false
endif

do-obsolete: .PHONY .MAKE
       ${MAKEDIRTARGET} etc install-obsolete-lists

#
# Speedup stubs for some subtrees that don't need to run these rules.
# (Tells <bsd.subdir.mk> not to recurse for them.)
#

for dir in bin etc distrib games libexec regress sbin usr.bin usr.sbin tools
includes-${dir}: .PHONY
       @true
endfor
for dir in etc distrib regress
install-${dir}: .PHONY
       @true
endfor

#
# XXX this needs to change when distrib Makefiles are recursion compliant
# XXX many distrib subdirs need "cd etc && make snap_pre snap_kern" first...
#
dependall-distrib depend-distrib all-distrib: .PHONY
       @true

include <bsd.obj.mk>
include <bsd.kernobj.mk>
include <bsd.subdir.mk>
include <bsd.clean.mk>

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