# $FreeBSD$
# Part of a unified Makefile for building kernels. This part includes all
# the definitions that need to be after all the % directives except %RULES
# and ones that act like they are part of %RULES.
#
# Most make variables should not be defined in this file. Instead, they
# should be defined in the kern.pre.mk so that port makefiles can
# override or augment them.
.if defined(DTS) || defined(DTSO) || defined(FDT_DTS_FILE)
.include "dtb.build.mk"
KERNEL_EXTRA+= ${DTB} ${DTBO}
CLEAN+= ${DTB} ${DTBO}
kernel-install: _dtbinstall
.ORDER: beforeinstall _dtbinstall
.endif
# In case the config had a makeoptions DESTDIR...
.if defined(DESTDIR)
MKMODULESENV+= DESTDIR="${DESTDIR}"
.endif
SYSDIR?= ${S:C;^[^/];${.CURDIR}/&;:tA}
MKMODULESENV+= KERNBUILDDIR="${.CURDIR}" SYSDIR="${SYSDIR}"
MKMODULESENV+= MODULE_TIED=yes
.if defined(CONF_CFLAGS)
MKMODULESENV+= CONF_CFLAGS="${CONF_CFLAGS}"
.endif
.if defined(WITH_CTF)
MKMODULESENV+= WITH_CTF="${WITH_CTF}"
.endif
.if defined(WITH_EXTRA_TCP_STACKS)
MKMODULESENV+= WITH_EXTRA_TCP_STACKS="${WITH_EXTRA_TCP_STACKS}"
.endif
.if defined(KCSAN_ENABLED)
MKMODULESENV+= KCSAN_ENABLED="yes"
.endif
.if defined(SAN_CFLAGS)
MKMODULESENV+= SAN_CFLAGS="${SAN_CFLAGS}"
.endif
.if defined(GCOV_CFLAGS)
MKMODULESENV+= GCOV_CFLAGS="${GCOV_CFLAGS}"
.endif
# Allow overriding the kernel debug directory, so kernel and user debug may be
# installed in different directories. Setting it to "" restores the historical
# behavior of installing debug files in the kernel directory.
KERN_DEBUGDIR?= ${DEBUGDIR}
.MAIN: all
.if !defined(NO_MODULES)
# Default prefix used for modules installed from ports
LOCALBASE?= /usr/local
LOCAL_MODULES_DIR?= ${LOCALBASE}/sys/modules
# Default to installing all modules installed by ports unless overridden
# by the user.
.if !defined(LOCAL_MODULES) && exists(${LOCAL_MODULES_DIR})
LOCAL_MODULES!= ls ${LOCAL_MODULES_DIR}
.endif
.endif
.for target in all clean cleandepend cleandir clobber depend install \
${_obj} reinstall tags
${target}: kernel-${target}
.if !defined(NO_MODULES)
${target}: modules-${target}
modules-${target}:
.if !defined(MODULES_WITH_WORLD) && exists($S/modules)
cd $S/modules; ${MKMODULESENV} ${MAKE} \
${target:S/^reinstall$/install/:S/^clobber$/cleandir/}
.endif
.for module in ${LOCAL_MODULES}
@${ECHODIR} "===> ${module} (${target:S/^reinstall$/install/:S/^clobber$/cleandir/})"
@cd ${LOCAL_MODULES_DIR}/${module}; ${MKMODULESENV} ${MAKE} \
DIRPRFX="${module}/" \
${target:S/^reinstall$/install/:S/^clobber$/cleandir/}
.endfor
.endif
.endfor
# Handle ports (as defined by the user) that build kernel modules
.if !defined(NO_MODULES) && defined(PORTS_MODULES)
#
# The ports tree needs some environment variables defined to match the new kernel
#
# SRC_BASE is how the ports tree refers to the location of the base source files
.if !defined(SRC_BASE)
SRC_BASE= ${SYSDIR:H:tA}
.endif
# OSVERSION is used by some ports to determine build options
.if !defined(OSRELDATE)
# Definition copied from src/Makefile.inc1
OSRELDATE!= awk '/^\#define[[:space:]]*__FreeBSD_version/ { print $$3 }' \
${MAKEOBJDIRPREFIX}${SRC_BASE}/include/osreldate.h
.endif
# Keep the related ports builds in the obj directory so that they are only rebuilt once per kernel build
#
# Ports search for some dependencies in PATH, so add the location of the
# installed files
WRKDIRPREFIX?= ${.OBJDIR}
PORTSMODULESENV=\
env \
-u CC \
-u CXX \
-u CPP \
-u MAKESYSPATH \
-u MK_AUTO_OBJ \
-u MAKEOBJDIR \
MAKEFLAGS="${MAKEFLAGS:M*:tW:S/^-m /-m_/g:S/ -m / -m_/g:tw:N-m_*:NMK_AUTO_OBJ=*}" \
SYSDIR=${SYSDIR} \
PATH=${PATH}:${LOCALBASE}/bin:${LOCALBASE}/sbin \
SRC_BASE=${SRC_BASE} \
OSVERSION=${OSRELDATE} \
WRKDIRPREFIX=${WRKDIRPREFIX}
# The WRKDIR needs to be cleaned before building, and trying to change the target
# with a :C pattern below results in install -> instclean
all:
.for __i in ${PORTS_MODULES}
@${ECHO} "===> Ports module ${__i} (all)"
cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B clean build
.endfor
.for __target in install reinstall clean
${__target}: ports-${__target}
ports-${__target}:
.for __i in ${PORTS_MODULES}
@${ECHO} "===> Ports module ${__i} (${__target})"
cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B ${__target:C/(re)?install/deinstall reinstall/}
.endfor
.endfor
.endif
.ORDER: kernel-install modules-install
beforebuild: .PHONY
kernel-all: beforebuild .WAIT ${KERNEL_KO} ${KERNEL_EXTRA}
kernel-cleandir: kernel-clean kernel-cleandepend
kernel-clobber:
find . -maxdepth 1 ! -type d ! -name version -delete
kernel-obj:
.if !defined(NO_MODULES)
modules: modules-all
modules-depend: beforebuild
modules-all: beforebuild
.if !defined(NO_MODULES_OBJ)
modules-all modules-depend: modules-obj
.endif
.endif
.if !defined(DEBUG)
FULLKERNEL= ${KERNEL_KO}
.else
FULLKERNEL= ${KERNEL_KO}.full
${KERNEL_KO}: ${FULLKERNEL} ${KERNEL_KO}.debug
${OBJCOPY} --strip-debug --add-gnu-debuglink=${KERNEL_KO}.debug \
${FULLKERNEL} ${.TARGET}
${KERNEL_KO}.debug: ${FULLKERNEL}
${OBJCOPY} --only-keep-debug ${FULLKERNEL} ${.TARGET}
install.debug reinstall.debug: gdbinit
cd ${.CURDIR}; ${MAKE} ${.TARGET:R}
# Install gdbinit files for kernel debugging.
gdbinit:
grep -v '# XXX' ${S}/../tools/debugscripts/dot.gdbinit | \
sed "s:MODPATH:${.OBJDIR}/modules:" > .gdbinit
cp ${S}/../tools/debugscripts/gdbinit.kernel ${.CURDIR}
.if exists(${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH})
cp ${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH} \
${.CURDIR}/gdbinit.machine
.endif
.endif
${FULLKERNEL}: ${SYSTEM_DEP} vers.o
@rm -f ${.TARGET}
@echo linking ${.TARGET}
${SYSTEM_LD}
.if !empty(MD_ROOT_SIZE_CONFIGURED) && defined(MFS_IMAGE)
@sh ${S}/tools/embed_mfs.sh ${.TARGET} ${MFS_IMAGE}
.endif
.if ${MK_CTF} != "no"
@echo ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ...
@${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJS} vers.o
.endif
.if !defined(DEBUG)
${OBJCOPY} --strip-debug ${.TARGET}
.endif
${SYSTEM_LD_TAIL}
OBJS_DEPEND_GUESS+= offset.inc assym.inc vnode_if.h ${BEFORE_DEPEND:M*.h} \
${MFILES:T:S/.m$/.h/}
.for mfile in ${MFILES}
# XXX the low quality .m.o rules gnerated by config are normally used
# instead of the .m.c rules here.
${mfile:T:S/.m$/.c/}: ${mfile}
${AWK} -f $S/tools/makeobjops.awk ${mfile} -c
${mfile:T:S/.m$/.h/}: ${mfile}
${AWK} -f $S/tools/makeobjops.awk ${mfile} -h
.endfor
kernel-clean:
rm -f *.o *.so *.pico *.ko *.s eddep errs \
${FULLKERNEL} ${KERNEL_KO} ${KERNEL_KO}.debug \
tags vers.c \
vnode_if.c vnode_if.h vnode_if_newproto.h vnode_if_typedef.h \
${MFILES:T:S/.m$/.c/} ${MFILES:T:S/.m$/.h/} \
${CLEAN}
# This is a hack. BFD "optimizes" away dynamic mode if there are no
# dynamic references. We could probably do a '-Bforcedynamic' mode like
# in the a.out ld. For now, this works.
hack.pico: Makefile
:> hack.c
${CC} -shared ${CFLAGS} -nostdlib hack.c -o hack.pico
rm -f hack.c
offset.inc: $S/kern/genoffset.sh genoffset.o
NM='${NM}' NMFLAGS='${NMFLAGS}' sh $S/kern/genoffset.sh genoffset.o > ${.TARGET}
genoffset.o: $S/kern/genoffset.c
${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon $S/kern/genoffset.c
# genoffset_test.o is not actually used for anything - the point of compiling it
# is to exercise the CTASSERT that checks that the offsets in the offset.inc
# _lite struct(s) match those in the original(s).
genoffset_test.o: $S/kern/genoffset.c offset.inc
${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon -DOFFSET_TEST \
$S/kern/genoffset.c -o ${.TARGET}
assym.inc: $S/kern/genassym.sh genassym.o genoffset_test.o
NM='${NM}' NMFLAGS='${NMFLAGS}' sh $S/kern/genassym.sh genassym.o > ${.TARGET}
genassym.o: $S/$M/$M/genassym.c offset.inc
${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon $S/$M/$M/genassym.c
OBJS_DEPEND_GUESS+= opt_global.h
genoffset.o genassym.o vers.o: opt_global.h
.if !empty(.MAKE.MODE:Unormal:Mmeta) && empty(.MAKE.MODE:Unormal:Mnofilemon)
_meta_filemon= 1
.endif
# Skip reading .depend when not needed to speed up tree-walks and simple
# lookups. For install, only do this if no other targets are specified.
# Also skip generating or including .depend.* files if in meta+filemon mode
# since it will track dependencies itself. OBJS_DEPEND_GUESS is still used
# for _meta_filemon but not for _SKIP_DEPEND.
.if !defined(NO_SKIP_DEPEND) && \
((!empty(.MAKEFLAGS:M-V) && empty(.MAKEFLAGS:M*DEP*)) || \
${.TARGETS:M*obj} == ${.TARGETS} || \
${.TARGETS:M*clean*} == ${.TARGETS} || \
${.TARGETS:M*install*} == ${.TARGETS})
_SKIP_DEPEND= 1
.endif
.if defined(_SKIP_DEPEND) || defined(_meta_filemon)
.MAKE.DEPENDFILE= /dev/null
.endif
kernel-depend: .depend
SRCS= assym.inc offset.inc vnode_if.h ${BEFORE_DEPEND} ${CFILES} \
${SYSTEM_CFILES} ${GEN_CFILES} ${SFILES} \
${MFILES:T:S/.m$/.h/}
DEPENDOBJS+= ${SYSTEM_OBJS} genassym.o genoffset.o genoffset_test.o
DEPENDOBJS+= ${CLEAN:M*.o}
DEPENDFILES= ${DEPENDOBJS:O:u:C/^/.depend./}
.if ${MAKE_VERSION} < 20160220
DEPEND_MP?= -MP
.endif
.if defined(_SKIP_DEPEND)
# Don't bother reading any .meta files
${DEPENDOBJS}: .NOMETA
.depend: .NOMETA
# Unset these to avoid looping/statting on them later.
.undef DEPENDOBJS
.undef DEPENDFILES
.endif # defined(_SKIP_DEPEND)
DEPEND_CFLAGS+= -MD ${DEPEND_MP} -MF.depend.${.TARGET}
DEPEND_CFLAGS+= -MT${.TARGET}
.if !defined(_meta_filemon)
.if !empty(DEPEND_CFLAGS)
# Only add in DEPEND_CFLAGS for CFLAGS on files we expect from DEPENDOBJS
# as those are the only ones we will include.
DEPEND_CFLAGS_CONDITION= "${DEPENDOBJS:M${.TARGET}}" != ""
CFLAGS+= ${${DEPEND_CFLAGS_CONDITION}:?${DEPEND_CFLAGS}:}
.endif
.for __depend_obj in ${DEPENDFILES}
.if ${MAKE_VERSION} < 20160220
.sinclude "${.OBJDIR}/${__depend_obj}"
.else
.dinclude "${.OBJDIR}/${__depend_obj}"
.endif
.endfor
.endif # !defined(_meta_filemon)
# Always run 'make depend' to generate dependencies early and to avoid the
# need for manually running it. For the kernel this is mostly a NOP since
# all dependencies are correctly added or accounted for. This is mostly to
# ensure downstream uses of kernel-depend are handled.
beforebuild: kernel-depend
# Guess some dependencies for when no ${DEPENDFILE}.OBJ is generated yet.
# For meta+filemon the .meta file is checked for since it is the dependency
# file used.
.for __obj in ${DEPENDOBJS:O:u}
.if defined(_meta_filemon)
_depfile= ${.OBJDIR}/${__obj}.meta
.else
_depfile= ${.OBJDIR}/.depend.${__obj}
.endif
.if !exists(${_depfile})
.if ${SYSTEM_OBJS:M${__obj}}
${__obj}: ${OBJS_DEPEND_GUESS}
.endif
${__obj}: ${OBJS_DEPEND_GUESS.${__obj}}
.elif defined(_meta_filemon)
# For meta mode we still need to know which file to depend on to avoid
# ambiguous suffix transformation rules from .PATH. Meta mode does not
# use .depend files. We really only need source files, not headers since
# they are typically in SRCS/beforebuild already. For target-specific
# guesses do include headers though since they may not be in SRCS.
.if ${SYSTEM_OBJS:M${__obj}}
${__obj}: ${OBJS_DEPEND_GUESS:N*.h}
.endif
${__obj}: ${OBJS_DEPEND_GUESS.${__obj}}
.endif # !exists(${_depfile})
.endfor
.NOPATH: .depend ${DEPENDFILES}
.depend: .PRECIOUS ${SRCS}
_MAP_DEBUG_PREFIX= yes
_ILINKS= machine
.if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64"
_ILINKS+= ${MACHINE_CPUARCH}
.endif
.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
_ILINKS+= x86
.endif
# Ensure that the link exists without depending on it when it exists.
# Ensure that debug info references the path in the source tree.
.for _link in ${_ILINKS}
.if !exists(${.OBJDIR}/${_link})
${SRCS} ${DEPENDOBJS}: ${_link}
.endif
.if defined(_MAP_DEBUG_PREFIX)
.if ${_link} == "machine"
CFLAGS+= -fdebug-prefix-map=./machine=${SYSDIR}/${MACHINE}/include
.else
CFLAGS+= -fdebug-prefix-map=./${_link}=${SYSDIR}/${_link}/include
.endif
.endif
.endfor
${_ILINKS}:
@case ${.TARGET} in \
machine) \
path=${S}/${MACHINE}/include ;; \
*) \
path=${S}/${.TARGET}/include ;; \
esac ; \
${ECHO} ${.TARGET} "->" $$path ; \
ln -fns $$path ${.TARGET}
# .depend needs include links so we remove them only together.
kernel-cleandepend: .PHONY
rm -f .depend .depend.* ${_ILINKS}
kernel-tags:
@ls .depend.* > /dev/null 2>&1 || \
{ echo "you must make all first"; exit 1; }
sh $S/conf/systags.sh
kernel-install: .PHONY
@if [ ! -f ${KERNEL_KO} ] ; then \
echo "You must build a kernel first." ; \
exit 1 ; \
fi
.if exists(${DESTDIR}${KODIR})
-thiskernel=`sysctl -n kern.bootfile` ; \
if [ ! "`dirname "$$thiskernel"`" -ef ${DESTDIR}${KODIR} ] ; then \
chflags -R noschg ${DESTDIR}${KODIR} ; \
rm -rf ${DESTDIR}${KODIR} ; \
rm -rf ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ; \
else \
if [ -d ${DESTDIR}${KODIR}.old ] ; then \
chflags -R noschg ${DESTDIR}${KODIR}.old ; \
rm -rf ${DESTDIR}${KODIR}.old ; \
fi ; \
mv ${DESTDIR}${KODIR} ${DESTDIR}${KODIR}.old ; \
if [ -n "${KERN_DEBUGDIR}" -a \
-d ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ]; then \
rm -rf ${DESTDIR}${KERN_DEBUGDIR}${KODIR}.old ; \
mv ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ${DESTDIR}${KERN_DEBUGDIR}${KODIR}.old ; \
fi ; \
sysctl kern.bootfile=${DESTDIR}${KODIR}.old/"`basename "$$thiskernel"`" ; \
fi
.endif
mkdir -p ${DESTDIR}${KODIR}
${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}/
.if defined(DEBUG) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no"
mkdir -p ${DESTDIR}${KERN_DEBUGDIR}${KODIR}
${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.debug ${DESTDIR}${KERN_DEBUGDIR}${KODIR}/
.endif
.if defined(KERNEL_EXTRA_INSTALL)
${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_EXTRA_INSTALL} ${DESTDIR}${KODIR}/
.endif
kernel-reinstall:
@-chflags -R noschg ${DESTDIR}${KODIR}
${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}/
.if defined(DEBUG) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no"
${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.debug ${DESTDIR}${KERN_DEBUGDIR}${KODIR}/
.endif
config.o env.o hints.o vers.o vnode_if.o:
${NORMAL_C}
${NORMAL_CTFCONVERT}
.if ${MK_REPRODUCIBLE_BUILD} != "no"
REPRO_FLAG="-R"
.endif
vers.c: $S/conf/newvers.sh $S/sys/param.h ${SYSTEM_DEP}
MAKE="${MAKE}" sh $S/conf/newvers.sh ${REPRO_FLAG} ${KERN_IDENT}
vnode_if.c: $S/tools/vnode_if.awk $S/kern/vnode_if.src
${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -c
vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: $S/tools/vnode_if.awk \
$S/kern/vnode_if.src
vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h
${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -h
vnode_if_newproto.h:
${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -p
vnode_if_typedef.h:
${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -q
.if ${MFS_IMAGE:Uno} != "no"
.if empty(MD_ROOT_SIZE_CONFIGURED)
# Generate an object file from the file system image to embed in the kernel
# via linking. Make sure the contents are in the mfs section and rename the
# start/end/size variables to __start_mfs, __stop_mfs, and mfs_size,
# respectively.
embedfs_${MFS_IMAGE:T:R}.o: ${MFS_IMAGE}
${OBJCOPY} --input-target binary \
--output-target ${EMBEDFS_FORMAT.${MACHINE_ARCH}} \
--binary-architecture ${EMBEDFS_ARCH.${MACHINE_ARCH}} \
${MFS_IMAGE} ${.TARGET}
${OBJCOPY} \
--rename-section .data=mfs,contents,alloc,load,readonly,data \
--redefine-sym \
_binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_size=__mfs_root_size \
--redefine-sym \
_binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_start=mfs_root \
--redefine-sym \
_binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_end=mfs_root_end \
${.TARGET}
.endif
.endif
# XXX strictly, everything depends on Makefile because changes to ${PROF}
# only appear there, but we don't handle that.
.include "kern.mk"
