Index: head/sys/conf/kern.post.mk
===================================================================
--- head/sys/conf/kern.post.mk	(revision 345593)
+++ head/sys/conf/kern.post.mk	(revision 345594)
@@ -1,486 +1,481 @@
 # $FreeBSD$
 
 # 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)
 .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(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}
 	cd ${LOCAL_MODULES_DIR}/${module}; ${MKMODULESENV} ${MAKE} \
 	    ${target:S/^reinstall$/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_EXTRA_FLAGS?= -shared
 hack.pico: Makefile
 	:> hack.c
 	${CC} ${HACK_EXTRA_FLAGS} -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} $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} -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} $S/$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}
 
 .if ${COMPILER_TYPE} == "clang" || \
     (${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 60000)
 _MAP_DEBUG_PREFIX= yes
 .endif
 
 _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} ${CLEAN:M*.o}: ${_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
 
-.if defined(_MAP_DEBUG_PREFIX)
-# Ensure that DWARF info contains a full path for auto-generated headers.
-CFLAGS+= -fdebug-prefix-map=.=${.OBJDIR}
-.endif
-
 ${_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:
 	@[ -f .depend ] || { echo "you must make depend 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"
Index: head/sys/conf/kmod.mk
===================================================================
--- head/sys/conf/kmod.mk	(revision 345593)
+++ head/sys/conf/kmod.mk	(revision 345594)
@@ -1,529 +1,524 @@
 #	From: @(#)bsd.prog.mk	5.26 (Berkeley) 6/25/91
 # $FreeBSD$
 #
 # The include file <bsd.kmod.mk> handles building and installing loadable
 # kernel modules.
 #
 #
 # +++ variables +++
 #
 # CLEANFILES	Additional files to remove for the clean and cleandir targets.
 #
 # EXPORT_SYMS	A list of symbols that should be exported from the module,
 #		or the name of a file containing a list of symbols, or YES
 #		to export all symbols.  If not defined, no symbols are
 #		exported.
 #
 # KMOD		The name of the kernel module to build.
 #
 # KMODDIR	Base path for kernel modules (see kld(4)). [/boot/kernel]
 #
 # KMODOWN	Module file owner. [${BINOWN}]
 #
 # KMODGRP	Module file group. [${BINGRP}]
 #
 # KMODMODE	Module file mode. [${BINMODE}]
 #
 # KMODLOAD	Command to load a kernel module [/sbin/kldload]
 #
 # KMODUNLOAD	Command to unload a kernel module [/sbin/kldunload]
 #
 # KMODISLOADED	Command to check whether a kernel module is
 #		loaded [/sbin/kldstat -q -n]
 #
 # PROG		The name of the kernel module to build.
 #		If not supplied, ${KMOD}.ko is used.
 #
 # SRCS		List of source files.
 #
 # FIRMWS	List of firmware images in format filename:shortname:version
 #
 # FIRMWARE_LICENSE
 #		Set to the name of the license the user has to agree on in
 #		order to use this firmware. See /usr/share/doc/legal
 #
 # DESTDIR	The tree where the module gets installed. [not set]
 #
 # KERNBUILDDIR
 #		Set to the location of the kernel build directory where
 #		the opt_*.h files, .o's and kernel winds up.
 #
 # +++ targets +++
 #
 # 	install:
 #               install the kernel module; if the Makefile
 #               does not itself define the target install, the targets
 #               beforeinstall and afterinstall may also be used to cause
 #               actions immediately before and after the install target
 #		is executed.
 #
 # 	load:
 #		Load a module.
 #
 # 	unload:
 #		Unload a module.
 #
 #	reload:
 #		Unload if loaded, then load.
 #
 
 AWK?=		awk
 KMODLOAD?=	/sbin/kldload
 KMODUNLOAD?=	/sbin/kldunload
 KMODISLOADED?=	/sbin/kldstat -q -n
 OBJCOPY?=	objcopy
 
 .include <bsd.init.mk>
 # Grab all the options for a kernel build. For backwards compat, we need to
 # do this after bsd.own.mk.
 .include "kern.opts.mk"
 .include <bsd.compiler.mk>
 .include "config.mk"
 
 # Search for kernel source tree in standard places.
 .if empty(KERNBUILDDIR)
 .if !defined(SYSDIR)
 .for _dir in ${SRCTOP:D${SRCTOP}/sys} \
     ${.CURDIR}/../.. ${.CURDIR}/../../.. /sys /usr/src/sys
 .if !defined(SYSDIR) && exists(${_dir}/kern/)
 SYSDIR=	${_dir:tA}
 .endif
 .endfor
 .endif
 .if !defined(SYSDIR) || !exists(${SYSDIR}/kern/)
 .error "can't find kernel source tree"
 .endif
 .endif
 
 .SUFFIXES: .out .o .c .cc .cxx .C .y .l .s .S .m
 
 # amd64 and mips use direct linking for kmod, all others use shared binaries
 .if ${MACHINE_CPUARCH} != amd64 && ${MACHINE_CPUARCH} != mips
 __KLD_SHARED=yes
 .else
 __KLD_SHARED=no
 .endif
 
 .if !empty(CFLAGS:M-O[23s]) && empty(CFLAGS:M-fno-strict-aliasing)
 CFLAGS+=	-fno-strict-aliasing
 .endif
 WERROR?=	-Werror
 CFLAGS+=	${WERROR}
 CFLAGS+=	-D_KERNEL
 CFLAGS+=	-DKLD_MODULE
 .if defined(MODULE_TIED)
 CFLAGS+=	-DKLD_TIED
 .endif
 
 # Don't use any standard or source-relative include directories.
 NOSTDINC=	-nostdinc
 CFLAGS:=	${CFLAGS:N-I*} ${NOSTDINC} ${INCLMAGIC} ${CFLAGS:M-I*}
 .if defined(KERNBUILDDIR)
 CFLAGS+=	-DHAVE_KERNEL_OPTION_HEADERS -include ${KERNBUILDDIR}/opt_global.h
 .endif
 
 # Add -I paths for system headers.  Individual module makefiles don't
 # need any -I paths for this.  Similar defaults for .PATH can't be
 # set because there are no standard paths for non-headers.
 CFLAGS+=	-I. -I${SYSDIR} -I${SYSDIR}/contrib/ck/include
 
 CFLAGS.gcc+=	-finline-limit=${INLINE_LIMIT}
 CFLAGS.gcc+=	-fms-extensions
 CFLAGS.gcc+= --param inline-unit-growth=100
 CFLAGS.gcc+= --param large-function-growth=1000
 
 # Disallow common variables, and if we end up with commons from
 # somewhere unexpected, allocate storage for them in the module itself.
 CFLAGS+=	-fno-common
 LDFLAGS+=	-d -warn-common
 
 .if defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mbuild-id}
 LDFLAGS+=	-Wl,--build-id=sha1
 .endif
 
 CFLAGS+=	${DEBUG_FLAGS}
 .if ${MACHINE_CPUARCH} == amd64
 CFLAGS+=	-fno-omit-frame-pointer -mno-omit-leaf-frame-pointer
 .endif
 
 .if ${MACHINE_CPUARCH} == "aarch64" || ${MACHINE_CPUARCH} == "riscv"
 CFLAGS+=	-fPIC
 .endif
 
 # Temporary workaround for PR 196407, which contains the fascinating details.
 # Don't allow clang to use fpu instructions or registers in kernel modules.
 .if ${MACHINE_CPUARCH} == arm
 .if ${COMPILER_VERSION} < 30800
 CFLAGS.clang+=	-mllvm -arm-use-movt=0
 .else
 CFLAGS.clang+=	-mno-movt
 .endif
 CFLAGS.clang+=	-mfpu=none
 CFLAGS+=	-funwind-tables
 .endif
 
 .if ${MACHINE_CPUARCH} == powerpc
 CFLAGS+=	-mlongcall -fno-omit-frame-pointer
 .endif
 
 .if ${MACHINE_CPUARCH} == mips
 CFLAGS+=	-G0 -fno-pic -mno-abicalls -mlong-calls
 .endif
 
 .if defined(DEBUG) || defined(DEBUG_FLAGS)
 CTFFLAGS+=	-g
 .endif
 
 .if defined(FIRMWS)
 ${KMOD:S/$/.c/}: ${SYSDIR}/tools/fw_stub.awk
 	${AWK} -f ${SYSDIR}/tools/fw_stub.awk ${FIRMWS} -m${KMOD} -c${KMOD:S/$/.c/g} \
 	    ${FIRMWARE_LICENSE:C/.+/-l/}${FIRMWARE_LICENSE}
 
 SRCS+=	${KMOD:S/$/.c/}
 CLEANFILES+=	${KMOD:S/$/.c/}
 
 .for _firmw in ${FIRMWS}
 ${_firmw:C/\:.*$/.fwo/:T}:	${_firmw:C/\:.*$//}
 	@${ECHO} ${_firmw:C/\:.*$//} ${.ALLSRC:M*${_firmw:C/\:.*$//}}
 	@if [ -e ${_firmw:C/\:.*$//} ]; then			\
 		${LD} -b binary --no-warn-mismatch ${_LDFLAGS}	\
 		    -m ${LD_EMULATION} -r -d			\
 		    -o ${.TARGET} ${_firmw:C/\:.*$//};		\
 	else							\
 		ln -s ${.ALLSRC:M*${_firmw:C/\:.*$//}} ${_firmw:C/\:.*$//}; \
 		${LD} -b binary --no-warn-mismatch ${_LDFLAGS}	\
 		    -m ${LD_EMULATION} -r -d			\
 		    -o ${.TARGET} ${_firmw:C/\:.*$//};		\
 		rm ${_firmw:C/\:.*$//};				\
 	fi
 
 OBJS+=	${_firmw:C/\:.*$/.fwo/:T}
 .endfor
 .endif
 
 # Conditionally include SRCS based on kernel config options.
 .for _o in ${KERN_OPTS}
 SRCS+=${SRCS.${_o}}
 .endfor
 
 OBJS+=	${SRCS:N*.h:R:S/$/.o/g}
 
 .if !defined(PROG)
 PROG=	${KMOD}.ko
 .endif
 
 .if !defined(DEBUG_FLAGS)
 FULLPROG=	${PROG}
 .else
 FULLPROG=	${PROG}.full
 ${PROG}: ${FULLPROG} ${PROG}.debug
 	${OBJCOPY} --strip-debug --add-gnu-debuglink=${PROG}.debug \
 	    ${FULLPROG} ${.TARGET}
 ${PROG}.debug: ${FULLPROG}
 	${OBJCOPY} --only-keep-debug ${FULLPROG} ${.TARGET}
 .endif
 
 .if ${__KLD_SHARED} == yes
 ${FULLPROG}: ${KMOD}.kld
 	${LD} -m ${LD_EMULATION} -Bshareable -znotext ${_LDFLAGS} \
 	    -o ${.TARGET} ${KMOD}.kld
 .if !defined(DEBUG_FLAGS)
 	${OBJCOPY} --strip-debug ${.TARGET}
 .endif
 .endif
 
 EXPORT_SYMS?=	NO
 .if ${EXPORT_SYMS} != YES
 CLEANFILES+=	export_syms
 .endif
 
 .if ${__KLD_SHARED} == yes
 ${KMOD}.kld: ${OBJS}
 .else
 ${FULLPROG}: ${OBJS}
 .endif
 	${LD} -m ${LD_EMULATION} ${_LDFLAGS} -r -d -o ${.TARGET} ${OBJS}
 .if ${MK_CTF} != "no"
 	${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${OBJS}
 .endif
 .if defined(EXPORT_SYMS)
 .if ${EXPORT_SYMS} != YES
 .if ${EXPORT_SYMS} == NO
 	:> export_syms
 .elif !exists(${.CURDIR}/${EXPORT_SYMS})
 	echo -n "${EXPORT_SYMS:@s@$s${.newline}@}" > export_syms
 .else
 	grep -v '^#' < ${EXPORT_SYMS} > export_syms
 .endif
 	${AWK} -f ${SYSDIR}/conf/kmod_syms.awk ${.TARGET} \
 	    export_syms | xargs -J% ${OBJCOPY} % ${.TARGET}
 .endif
 .endif # defined(EXPORT_SYMS)
 .if defined(PREFIX_SYMS)
 	${AWK} -v prefix=${PREFIX_SYMS} -f ${SYSDIR}/conf/kmod_syms_prefix.awk \
 	    ${.TARGET} /dev/null | xargs -J% ${OBJCOPY} % ${.TARGET}
 .endif
 .if !defined(DEBUG_FLAGS) && ${__KLD_SHARED} == no
 	${OBJCOPY} --strip-debug ${.TARGET}
 .endif
 
 .if ${COMPILER_TYPE} == "clang" || \
     (${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 60000)
 _MAP_DEBUG_PREFIX= yes
 .endif
 
 _ILINKS=machine
 .if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64"
 _ILINKS+=${MACHINE_CPUARCH}
 .endif
 .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
 _ILINKS+=x86
 .endif
 CLEANFILES+=${_ILINKS}
 
 all: ${PROG}
 
 beforedepend: ${_ILINKS}
 beforebuild: ${_ILINKS}
 
 # Ensure that the links exist without depending on it when it exists which
 # causes all the modules to be rebuilt when the directory pointed to changes.
 # Ensure that debug info references the path in the source tree.
 .for _link in ${_ILINKS}
 .if !exists(${.OBJDIR}/${_link})
 OBJS_DEPEND_GUESS+=	${_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
 
-.if defined(_MAP_DEBUG_PREFIX)
-# Ensure that DWARF info contains a full path for auto-generated headers.
-CFLAGS+= -fdebug-prefix-map=.=${.OBJDIR}
-.endif
-
 .NOPATH: ${_ILINKS}
 
 ${_ILINKS}:
 	@case ${.TARGET} in \
 	machine) \
 		path=${SYSDIR}/${MACHINE}/include ;; \
 	*) \
 		path=${SYSDIR}/${.TARGET:T}/include ;; \
 	esac ; \
 	path=`(cd $$path && /bin/pwd)` ; \
 	${ECHO} ${.TARGET:T} "->" $$path ; \
 	ln -fns $$path ${.TARGET:T}
 
 CLEANFILES+= ${PROG} ${KMOD}.kld ${OBJS}
 
 .if defined(DEBUG_FLAGS)
 CLEANFILES+= ${FULLPROG} ${PROG}.debug
 .endif
 
 .if !target(install)
 
 _INSTALLFLAGS:=	${INSTALLFLAGS}
 .for ie in ${INSTALLFLAGS_EDIT}
 _INSTALLFLAGS:=	${_INSTALLFLAGS${ie}}
 .endfor
 
 .if !target(realinstall)
 KERN_DEBUGDIR?=	${DEBUGDIR}
 realinstall: _kmodinstall
 .ORDER: beforeinstall _kmodinstall
 _kmodinstall: .PHONY
 	${INSTALL} -T release -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
 	    ${_INSTALLFLAGS} ${PROG} ${DESTDIR}${KMODDIR}/
 .if defined(DEBUG_FLAGS) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no"
 	${INSTALL} -T debug -o ${KMODOWN} -g ${KMODGRP} -m ${KMODMODE} \
 	    ${_INSTALLFLAGS} ${PROG}.debug ${DESTDIR}${KERN_DEBUGDIR}${KMODDIR}/
 .endif
 
 .include <bsd.links.mk>
 
 .if !defined(NO_XREF)
 afterinstall: _kldxref
 .ORDER: realinstall _kldxref
 .ORDER: _installlinks _kldxref
 _kldxref: .PHONY
 	@if type kldxref >/dev/null 2>&1; then \
 		${ECHO} kldxref ${DESTDIR}${KMODDIR}; \
 		kldxref ${DESTDIR}${KMODDIR}; \
 	fi
 .endif
 .endif # !target(realinstall)
 
 .endif # !target(install)
 
 .if !target(load)
 load: ${PROG} .PHONY
 	${KMODLOAD} -v ${.OBJDIR}/${PROG}
 .endif
 
 .if !target(unload)
 unload: .PHONY
 	if ${KMODISLOADED} ${PROG} ; then ${KMODUNLOAD} -v ${PROG} ; fi
 .endif
 
 .if !target(reload)
 reload: unload load .PHONY
 .endif
 
 .if defined(KERNBUILDDIR)
 .PATH: ${KERNBUILDDIR}
 CFLAGS+=	-I${KERNBUILDDIR}
 .for _src in ${SRCS:Mopt_*.h}
 CLEANFILES+=	${_src}
 .if !target(${_src})
 ${_src}:
 	ln -sf ${KERNBUILDDIR}/${_src} ${.TARGET}
 .endif
 .endfor
 .else
 .for _src in ${SRCS:Mopt_*.h}
 CLEANFILES+=	${_src}
 .if !target(${_src})
 ${_src}:
 	:> ${.TARGET}
 .endif
 .endfor
 .endif
 
 # Add the sanitizer C flags
 CFLAGS+=	${SAN_CFLAGS}
 
 # Add the gcov flags
 CFLAGS+=	${GCOV_CFLAGS}
 
 # Respect configuration-specific C flags.
 CFLAGS+=	${ARCH_FLAGS} ${CONF_CFLAGS}
 
 .if !empty(SRCS:Mvnode_if.c)
 CLEANFILES+=	vnode_if.c
 vnode_if.c: ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src
 	${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -c
 .endif
 
 .if !empty(SRCS:Mvnode_if.h)
 CLEANFILES+=	vnode_if.h vnode_if_newproto.h vnode_if_typedef.h
 vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: ${SYSDIR}/tools/vnode_if.awk \
     ${SYSDIR}/kern/vnode_if.src
 vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h
 	${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -h
 vnode_if_newproto.h:
 	${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -p
 vnode_if_typedef.h:
 	${AWK} -f ${SYSDIR}/tools/vnode_if.awk ${SYSDIR}/kern/vnode_if.src -q
 .endif
 
 # Build _if.[ch] from _if.m, and clean them when we're done.
 # __MPATH defined in config.mk
 _MFILES=${__MPATH:T:O}
 _MPATH=${__MPATH:H:O:u}
 .PATH.m: ${_MPATH}
 .for _i in ${SRCS:M*_if.[ch]}
 _MATCH=M${_i:R:S/$/.m/}
 _MATCHES=${_MFILES:${_MATCH}}
 .if !empty(_MATCHES)
 CLEANFILES+=	${_i}
 .endif
 .endfor # _i
 .m.c:	${SYSDIR}/tools/makeobjops.awk
 	${AWK} -f ${SYSDIR}/tools/makeobjops.awk ${.IMPSRC} -c
 
 .m.h:	${SYSDIR}/tools/makeobjops.awk
 	${AWK} -f ${SYSDIR}/tools/makeobjops.awk ${.IMPSRC} -h
 
 .for _i in mii pccard
 .if !empty(SRCS:M${_i}devs.h)
 CLEANFILES+=	${_i}devs.h
 ${_i}devs.h: ${SYSDIR}/tools/${_i}devs2h.awk ${SYSDIR}/dev/${_i}/${_i}devs
 	${AWK} -f ${SYSDIR}/tools/${_i}devs2h.awk ${SYSDIR}/dev/${_i}/${_i}devs
 .endif
 .endfor # _i
 
 .if !empty(SRCS:Mbhnd_nvram_map.h)
 CLEANFILES+=	bhnd_nvram_map.h
 bhnd_nvram_map.h: ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.awk \
     ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.sh \
     ${SYSDIR}/dev/bhnd/nvram/nvram_map
 bhnd_nvram_map.h:
 	sh ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.sh \
 	    ${SYSDIR}/dev/bhnd/nvram/nvram_map -h
 .endif
 
 .if !empty(SRCS:Mbhnd_nvram_map_data.h)
 CLEANFILES+=	bhnd_nvram_map_data.h
 bhnd_nvram_map_data.h: ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.awk \
     ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.sh \
     ${SYSDIR}/dev/bhnd/nvram/nvram_map
 bhnd_nvram_map_data.h:
 	sh ${SYSDIR}/dev/bhnd/tools/nvram_map_gen.sh \
 	    ${SYSDIR}/dev/bhnd/nvram/nvram_map -d
 .endif
 
 .if !empty(SRCS:Musbdevs.h)
 CLEANFILES+=	usbdevs.h
 usbdevs.h: ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs
 	${AWK} -f ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs -h
 .endif
 
 .if !empty(SRCS:Musbdevs_data.h)
 CLEANFILES+=	usbdevs_data.h
 usbdevs_data.h: ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs
 	${AWK} -f ${SYSDIR}/tools/usbdevs2h.awk ${SYSDIR}/dev/usb/usbdevs -d
 .endif
 
 .if !empty(SRCS:Macpi_quirks.h)
 CLEANFILES+=	acpi_quirks.h
 acpi_quirks.h: ${SYSDIR}/tools/acpi_quirks2h.awk ${SYSDIR}/dev/acpica/acpi_quirks
 	${AWK} -f ${SYSDIR}/tools/acpi_quirks2h.awk ${SYSDIR}/dev/acpica/acpi_quirks
 .endif
 
 .if !empty(SRCS:Massym.inc) || !empty(DPSRCS:Massym.inc)
 CLEANFILES+=	assym.inc
 DEPENDOBJS+=	genassym.o
 DPSRCS+=	offset.inc
 .endif
 .if defined(MODULE_TIED)
 DPSRCS+=	offset.inc
 .endif
 .if !empty(SRCS:Moffset.inc) || !empty(DPSRCS:Moffset.inc)
 CLEANFILES+=	offset.inc genoffset.o
 DEPENDOBJS+=	genoffset.o
 .endif
 assym.inc: genassym.o
 offset.inc: genoffset.o
 assym.inc: ${SYSDIR}/kern/genassym.sh
 	sh ${SYSDIR}/kern/genassym.sh genassym.o > ${.TARGET}
 genassym.o: ${SYSDIR}/${MACHINE}/${MACHINE}/genassym.c offset.inc
 genassym.o: ${SRCS:Mopt_*.h}
 	${CC} -c ${CFLAGS:N-flto:N-fno-common} \
 	    ${SYSDIR}/${MACHINE}/${MACHINE}/genassym.c
 offset.inc: ${SYSDIR}/kern/genoffset.sh genoffset.o
 	sh ${SYSDIR}/kern/genoffset.sh genoffset.o > ${.TARGET}
 genoffset.o: ${SYSDIR}/kern/genoffset.c
 genoffset.o: ${SRCS:Mopt_*.h}
 	${CC} -c ${CFLAGS:N-flto:N-fno-common} \
 	    ${SYSDIR}/kern/genoffset.c
 
 CLEANDEPENDFILES+=	${_ILINKS}
 # .depend needs include links so we remove them only together.
 cleanilinks:
 	rm -f ${_ILINKS}
 
 OBJS_DEPEND_GUESS+= ${SRCS:M*.h}
 .if defined(KERNBUILDDIR)
 OBJS_DEPEND_GUESS+= opt_global.h
 .endif
 
 .include <bsd.dep.mk>
 .include <bsd.clang-analyze.mk>
 .include <bsd.obj.mk>
 .include "kern.mk"