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Makefile.kern.inc revision 1.164
      1 #	$NetBSD: Makefile.kern.inc,v 1.164 2013/10/18 08:06:06 mbalmer Exp $
      2 #
      3 # This file contains common `MI' targets and definitions and it is included
      4 # at the bottom of each `MD' ${MACHINE}/conf/Makefile.${MACHINE}.
      5 #
      6 # Each target in this file should be protected with `if !target(target)'
      7 # or `if !commands(target)' and each variable should only be conditionally
      8 # assigned `VAR ?= VALUE', so that everything can be overriden.
      9 #
     10 # DEBUG is set to -g if debugging.
     11 # PROF is set to -pg if profiling.
     12 #
     13 # To specify debugging, add the config line: makeoptions DEBUG="-g"
     14 # A better way is to specify -g only for a few files.
     15 #
     16 #	makeoptions DEBUGLIST="uvm* trap if_*"
     17 #
     18 # all ports are expected to include bsd.own.mk for toolchain settings
     19 
     20 ##
     21 ## (0) toolchain settings for things that aren't part of the standard
     22 ## toolchain
     23 ##
     24 HOST_SH?=	sh
     25 DBSYM?=		dbsym
     26 MKDEP?=		mkdep
     27 STRIP?=		strip
     28 OBJCOPY?=	objcopy
     29 OBJDUMP?=	objdump
     30 CSCOPE?=	cscope
     31 MKID?=		mkid
     32 UUDECODE?=	${TOOL_UUDECODE:Uuudecode}
     33 HEXDUMP?=	${TOOL_HEXDUMP:Uhexdump}
     34 GENASSYM?=	${TOOL_GENASSYM:Ugenassym}
     35 .MAKEOVERRIDES+=USETOOLS	# make sure proper value is propagated
     36 
     37 _MKMSG?=		@\#
     38 _MKSHMSG?=		echo
     39 _MKSHECHO?=		echo
     40 _MKSHNOECHO=		:
     41 _MKMSG_CREATE?=		:
     42 _MKTARGET_COMPILE?=	:
     43 _MKTARGET_CREATE?=	:
     44 
     45 ##
     46 ## (1) port independent source tree identification
     47 ##
     48 # source tree is located via $S relative to the compilation directory
     49 .ifndef S
     50 S!=	cd ../../../..; pwd
     51 .endif
     52 
     53 ##
     54 ## (2) compile settings
     55 ##
     56 ## CPPFLAGS, CFLAGS, and AFLAGS must be set in the port's Makefile
     57 ##
     58 INCLUDES?=	-I. ${EXTRA_INCLUDES} -I${S}/../common/include -I$S/arch \
     59 		-I$S -nostdinc
     60 CPPFLAGS+=	${INCLUDES} ${IDENT} ${PARAM} -D_KERNEL -D_KERNEL_OPT
     61 CPPFLAGS+=	-std=gnu99
     62 DEFCOPTS?=	-O2
     63 COPTS?=		${DEFCOPTS}
     64 DBG=		# might contain unwanted -Ofoo
     65 DEFWARNINGS?=	yes
     66 .if (${DEFWARNINGS} == "yes")
     67 CWARNFLAGS+=	-Wall -Wno-main -Wno-format-zero-length -Wpointer-arith
     68 CWARNFLAGS+=	-Wmissing-prototypes -Wstrict-prototypes
     69 CWARNFLAGS+=	-Wold-style-definition
     70 CWARNFLAGS+=	-Wswitch -Wshadow
     71 CWARNFLAGS+=	-Wcast-qual -Wwrite-strings
     72 CWARNFLAGS+=	-Wno-unreachable-code
     73 CWARNFLAGS+=	-Wno-pointer-sign -Wno-attributes
     74 .  if ${MACHINE} == "i386" || ${MACHINE_ARCH} == "x86_64" || \
     75 	${MACHINE_ARCH} == "sparc64" || ${MACHINE} == "prep"
     76 CWARNFLAGS+=	-Wextra -Wno-unused-parameter
     77 .  endif
     78 .  if ${MACHINE} == "i386" || ${MACHINE_ARCH} == "x86_64"
     79 CWARNFLAGS+=	-Wold-style-definition
     80 .  endif
     81 # Add -Wno-sign-compare.  -Wsign-compare is included in -Wall as of GCC 3.3,
     82 # but our sources aren't up for it yet.
     83 CWARNFLAGS+=	-Wno-sign-compare
     84 .endif
     85 
     86 CWARNFLAGS.clang+=	-Wno-unknown-pragmas -Wno-conversion \
     87 			-Wno-self-assign
     88 
     89 CWARNFLAGS.ah_regdomain.c= ${${ACTIVE_CC} == "clang":? \
     90     -Wno-shift-count-negative -Wno-shift-count-overflow:}
     91 
     92 CWARNFLAGS.ioconf.c= ${${ACTIVE_CC} == "clang":? -Wno-unused-const-variable :}
     93 
     94 CFLAGS+=	-ffreestanding -fno-zero-initialized-in-bss
     95 CFLAGS+=	${DEBUG} ${COPTS}
     96 AFLAGS+=	-D_LOCORE -Wa,--fatal-warnings
     97 
     98 # XXX
     99 .if defined(HAVE_GCC) || defined(HAVE_LLVM)
    100 CFLAGS+=	-fno-strict-aliasing
    101 CFLAGS+=	-fno-common
    102 .endif
    103 
    104 .if ${USE_SSP:Uno} == "yes"
    105 COPTS.kern_ssp.c+=	-fno-stack-protector -D__SSP__
    106 .endif
    107 
    108 # for multi-cpu machines, cpu_hatch() straddles the init of
    109 # __stack_chk_guard, so ensure stack protection is disabled
    110 .if ${MACHINE} == "i386" || ${MACHINE_ARCH} == "x86_64"
    111 COPTS.cpu.c+=		-fno-stack-protector
    112 .endif
    113 
    114 # If we want the bpendtsleep: label in kern_synch.c, we need to use
    115 # -fno-reorder-blocks.  Don't make this a config(1) defflag without
    116 # making sure this fragment remains valid.
    117 .if defined(HAVE_GCC) && !empty(${CFLAGS:M-DKERN_SYNCH_BPENDTSLEEP_LABEL})
    118 COPTS.kern_synch.c+=	-fno-reorder-blocks
    119 .endif
    120 
    121 # Use the per-source COPTS variables to add -g to just those
    122 # files that match the shell patterns given in ${DEBUGLIST}
    123 #
    124 .for i in ${DEBUGLIST}
    125 . for j in ${CFILES:T:M$i.c}
    126 COPTS.${j}+=-g
    127 . endfor
    128 .endfor
    129 
    130 # Always compile debugsyms.c with debug information.
    131 # This allows gdb to use type informations.
    132 #
    133 COPTS.debugsyms.c+=	-g
    134 
    135 # Add CTF sections for DTrace
    136 .if defined(CTFCONVERT)
    137 COMPILE_CTFCONVERT=	${_MKSHECHO}\
    138 			${CTFCONVERT} ${CTFFLAGS} ${.TARGET} && \
    139 			${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
    140 .else
    141 COMPILE_CTFCONVERT=	${_MKSHNOECHO}
    142 .endif
    143 
    144 # compile rules: rules are named ${TYPE}_${SUFFIX} where TYPE is NORMAL or
    145 # NOPROF and SUFFIX is the file suffix, capitalized (e.g. C for a .c file).
    146 NORMAL_C?=	@${_MKSHMSG} "compile  ${.CURDIR:T}/${.TARGET}" && \
    147 		${_MKSHECHO}\
    148 		${CC} ${COPTS.${<:T}} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $< && \
    149 		${CC} ${COPTS.${<:T}} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $< && \
    150 		${COMPILE_CTFCONVERT}
    151 NOPROF_C?=	@${_MKSHMSG} "compile  ${.CURDIR:T}/${.TARGET}" && \
    152 		${_MKSHECHO}\
    153 		${CC} ${COPTS.${<:T}} ${CFLAGS} ${CPPFLAGS} -c $< && \
    154 		${CC} ${COPTS.${<:T}} ${CFLAGS} ${CPPFLAGS} -c $< && \
    155 		${COMPILE_CTFCONVERT}
    156 NORMAL_S?=	@${_MKSHMSG} "compile  ${.CURDIR:T}/${.TARGET}" && \
    157 		${_MKSHECHO}\
    158 		${CC} ${AFLAGS} ${AFLAGS.${<:T}} ${CPPFLAGS} -c $< && \
    159 		${CC} ${AFLAGS} ${AFLAGS.${<:T}} ${CPPFLAGS} -c $<
    160 
    161 ##
    162 ## (3) libkern and compat
    163 ##
    164 ## Set KERN_AS in the port Makefile to "obj" or "library".  The
    165 ## default is "library", as documented in $S/lib/libkern/Makefile.inc.
    166 ##
    167 
    168 ### find out what to use for libkern
    169 .include "$S/lib/libkern/Makefile.inc"
    170 .ifndef PROF
    171 LIBKERN?=	${KERNLIB}
    172 .else
    173 LIBKERN?=	${KERNLIB_PROF}
    174 .endif
    175 
    176 LIBKERNLN?=	${KERNLIBLN}
    177 
    178 ### find out what to use for libcompat
    179 .include "$S/compat/common/Makefile.inc"
    180 .ifndef PROF
    181 SYSLIBCOMPAT?=	${COMPATLIB}
    182 .else
    183 SYSLIBCOMPAT?=	${COMPATLIB_PROF}
    184 .endif
    185 
    186 SYSLIBCOMPATLN?=	${COMPATLIBLN}
    187 
    188 ##
    189 ## (4) local objects, compile rules, and dependencies
    190 ##
    191 ## Each port should have a corresponding section with settings for
    192 ## MD_CFILES, MD_SFILES, and MD_OBJS, along with build rules for same.
    193 ##
    194 MI_CFILES=devsw.c ioconf.c param.c
    195 # the need for a MI_SFILES variable is dubitable at best
    196 MI_OBJS=${MI_CFILES:S/.c/.o/}
    197 
    198 param.c: $S/conf/param.c
    199 	${_MKTARGET_CREATE}
    200 	rm -f param.c
    201 	cp $S/conf/param.c .
    202 
    203 param.o: Makefile
    204 
    205 .for _cfile in ${MI_CFILES}
    206 ${_cfile:T:R}.o: ${_cfile}
    207 	${NORMAL_C}
    208 .endfor
    209 
    210 ##
    211 ## (5) link settings
    212 ##
    213 ## TEXTADDR (or LOADADDRESS), LINKFORMAT, and any EXTRA_LINKFLAGS must
    214 ## be set in the port's Makefile.  The port specific definitions for
    215 ## LINKFLAGS_NORMAL and LINKFLAGS_DEBUG will added to the LINKFLAGS
    216 ## depending on the value of DEBUG.
    217 ##
    218 # load lines for config "xxx" will be emitted as:
    219 # xxx: ${SYSTEM_DEP} swapxxx.o
    220 #	${SYSTEM_LD_HEAD}
    221 #	${SYSTEM_LD} swapxxx.o
    222 #	${SYSTEM_LD_TAIL}
    223 SYSTEM_OBJ?=	${MD_OBJS} ${MI_OBJS} ${OBJS:O} ${SYSLIBCOMPAT} ${LIBKERN}
    224 SYSTEM_DEP+=	Makefile ${SYSTEM_OBJ:O} .gdbinit
    225 .if defined(KERNLDSCRIPT)
    226 SYSTEM_DEP+=	${KERNLDSCRIPT}
    227 .endif
    228 .if defined(CTFMERGE)
    229 SYSTEM_CTFMERGE= ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJ} ${EXTRA_OBJ} vers.o
    230 .else
    231 SYSTEM_CTFMERGE= ${_MKSHECHO}
    232 .endif
    233 SYSTEM_LD_HEAD?=@rm -f $@
    234 SYSTEM_LD?=	@${_MKSHMSG} "   link  ${.CURDIR:T}/${.TARGET}"; \
    235 		${_MKSHECHO}\
    236 		${LD} -Map $@.map --cref ${LINKFLAGS} -o $@ '$${SYSTEM_OBJ}' '$${EXTRA_OBJ}' vers.o; \
    237 		${LD} -Map $@.map --cref ${LINKFLAGS} -o $@ ${SYSTEM_OBJ} ${EXTRA_OBJ} vers.o
    238 
    239 AUTO_SYMTAB_SPACE?=   yes
    240 
    241 .if empty(AUTO_SYMTAB_SPACE:M[Yy][Ee][Ss]) || defined(_SYMTAB_SPACE_ADJUSTED)
    242 SYSTEM_LD_TAIL_DBSYM?=	true
    243 .else
    244 SYSTEM_LD_TAIL_DBSYM?=	\
    245 	if grep '^\#define.*SYMTAB_SPACE' opt_ksyms.h > /dev/null; then \
    246 		_modify_opt_ksyms_h () {				\
    247 			${TOOL_SED}					\
    248 	-e 's/^\(\#define.*SYMTAB_SPACE[ 	]*\)[0-9]*/\1'$$1/	\
    249 	-e 's/\(.equiv[ 	]*_KERNEL_OPT_SYMTAB_SPACE,0x\)[0-9a-f]*/\1'$$(printf %x $$1)/ \
    250 			opt_ksyms.h > opt_ksyms.h.ADJ &&		\
    251 			mv opt_ksyms.h.ADJ opt_ksyms.h &&		\
    252 			${MAKE} ${MFLAGS} _SYMTAB_SPACE_ADJUSTED=1 $@;	\
    253 		};							\
    254 		_adj_symtab_space () {				\
    255 			set -- $$(${DBSYM} -p $@); 		\
    256 			echo Symtab size: $$1, space: $$2;	\
    257 			if [ "$$1" -gt "$$2" ]; then		\
    258 				echo Adjusting symtab space;	\
    259 				rm -f $@;			\
    260 				_modify_opt_ksyms_h $$1;	\
    261 			fi;					\
    262 		};						\
    263 		_adj_symtab_space;				\
    264 	fi
    265 .endif
    266 
    267 TEXTADDR?=	${LOADADDRESS}			# backwards compatibility
    268 LINKTEXT?=	${TEXTADDR:C/.+/-Ttext &/}
    269 LINKDATA?=	${DATAADDR:C/.+/-Tdata &/}
    270 ENTRYPOINT?=	start
    271 LINKENTRY?=	${ENTRYPOINT:C/.+/-e &/}
    272 LINKFLAGS?=	${LINKFORMAT} ${LINKTEXT} ${LINKDATA} ${LINKENTRY} \
    273 		${EXTRA_LINKFLAGS}
    274 
    275 LINKFLAGS_DEBUG?=	-X
    276 
    277 #
    278 # If we're relinking due to _SYMTAB_SPACE_ADJUSTED then don't perform
    279 # SYSTEM_LD_TAIL{,_DEBUG}. They'll be done in the parent invocation.
    280 #
    281 .if defined(_SYMTAB_SPACE_ADJUSTED)
    282 SYSTEM_LD_TAIL?=true
    283 SYSTEM_LD_TAIL_DEBUG?=true
    284 .else
    285 SYSTEM_LD_TAIL?=@${SYSTEM_LD_TAIL_DBSYM} ; \
    286 		${TOOL_SED} '/const char sccs/!d;s/.*@(.)//;s/\\.*//' vers.c; \
    287 		${SIZE} $@; chmod 755 $@; \
    288 		${SYSTEM_CTFMERGE}
    289 SYSTEM_LD_TAIL_DEBUG?=; \
    290 		echo mv -f $@ $@.gdb; mv -f $@ $@.gdb; \
    291 		echo ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb; \
    292 		${STRIP} ${STRIPFLAGS} -o $@ $@.gdb
    293 .endif
    294 LINKFLAGS_NORMAL?=	-S
    295 STRIPFLAGS?=	-g
    296 
    297 DEBUG?=
    298 .if !empty(DEBUG:M-g*)
    299 SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_DEBUG}
    300 LINKFLAGS+=	${LINKFLAGS_DEBUG}
    301 EXTRA_KERNELS+= ${KERNELS:@.KERNEL.@${.KERNEL.}.gdb@}
    302 CTFFLAGS+=	-g
    303 .if !defined(_SYMTAB_SPACE_ADJUSTED)
    304 SYSTEM_LD_TAIL+=; \
    305 	if grep '^\#define.*SYMTAB_SPACE' opt_ksyms.h > /dev/null; then \
    306 		echo "${DBSYM} $@.gdb"; \
    307 		${DBSYM} $@.gdb || (rm -f $@ ; exit 1) || exit 1; \
    308 	fi
    309 .endif
    310 .elifndef PROF
    311 LINKFLAGS+=	${LINKFLAGS_NORMAL}
    312 .endif
    313 
    314 #
    315 # More steps to skip if we're relinking due to _SYMTAB_SPACE_ADJUSTED (see
    316 # above)
    317 #
    318 .if !defined(_SYMTAB_SPACE_ADJUSTED)
    319 SYSTEM_LD_TAIL+=; \
    320 	if grep '^\#define.*SYMTAB_SPACE' opt_ksyms.h > /dev/null; then \
    321 		echo "${DBSYM} $@"; \
    322 		${DBSYM} $@ || (rm -f $@ ; exit 1) || exit 1; \
    323 	fi
    324 
    325 SYSTEM_LD_HEAD+=${SYSTEM_LD_HEAD_EXTRA}
    326 SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_EXTRA}
    327 .endif
    328 
    329 ##
    330 ## (6) port independent targets and dependencies: assym.h, vers.o
    331 ##
    332 .if !target(assym.h)
    333 assym.h: ${GENASSYM_CONF} ${GENASSYM_EXTRAS}
    334 	${_MKTARGET_CREATE}
    335 	cat ${GENASSYM_CONF} ${GENASSYM_EXTRAS} | \
    336 	    ${GENASSYM} -- ${CC} ${CFLAGS:N-Wa,*} ${CPPFLAGS} ${PROF} \
    337 	    > assym.h.tmp && \
    338 	mv -f assym.h.tmp assym.h
    339 ${MD_SFILES:C/\.[Ss]/.o/} ${SFILES:C/\.[Ss]/.o/}: assym.h
    340 .endif
    341 
    342 MKREPRO?=no
    343 
    344 .if ${MKREPRO} == "yes"
    345 _NVFLAGS=${NVFLAGS} -r
    346 .else
    347 _NVFLAGS=${NVFLAGS}
    348 .endif
    349 
    350 .if !target(vers.o)
    351 newvers: vers.o
    352 vers.o: ${SYSTEM_DEP} ${SYSTEM_SWAP_DEP} $S/conf/newvers.sh \
    353 		$S/conf/osrelease.sh ${_NETBSD_VERSION_DEPENDS}
    354 	${_MKMSG_CREATE} vers.c
    355 	${HOST_SH} $S/conf/newvers.sh ${_NVFLAGS}
    356 	${_MKTARGET_COMPILE}
    357 	${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c vers.c
    358 .endif
    359 
    360 .if defined(MEMORY_DISK_IMAGE)
    361 md_root_image.h: ${MEMORY_DISK_IMAGE}
    362 	${_MKTARGET_CREATE}
    363 	${TOOL_HEXDUMP} -v -e '"\t" 8/1 "0x%02x, " "\n"' ${.ALLSRC} > ${.TARGET}
    364 
    365 # XXX This is only needed when building md_root.o
    366 CPPFLAGS+=	-DMEMORY_DISK_IMAGE
    367 md_root.o: md_root_image.h
    368 .endif
    369 
    370 # depend on MEMORY_DISK_IMAGE configuration
    371 md_root.o: Makefile
    372 
    373 # depend on root or device configuration
    374 autoconf.o conf.o: Makefile
    375 
    376 # depend on network or filesystem configuration
    377 uipc_proto.o vfs_conf.o: Makefile
    378 
    379 # depend on maxusers and CPU configuration
    380 assym.h machdep.o: Makefile
    381 
    382 ##
    383 ## (7) misc targets: install, clean(dir), depend(all), lint, links, tags,
    384 ##                   cscope, mkid
    385 ##
    386 ## Any ports that have other stuff to be cleaned up should fill in
    387 ## EXTRA_CLEAN.  Some ports may want different settings for
    388 ## KERNLINTFLAGS, MKDEP_CFLAGS, or MKDEP_AFLAGS.
    389 ##
    390 .if !target(__CLEANKERNEL)
    391 __CLEANKERNEL: .USE
    392 	${_MKMSG} "${.TARGET}ing the kernel objects"
    393 	rm -f ${KERNELS} eddep tags *.[io] *.ln [a-z]*.s vers.c \
    394 	    [Ee]rrs linterrs makelinks assym.h.tmp assym.h \
    395 	    ${EXTRA_KERNELS} ${EXTRA_CLEAN}
    396 .endif
    397 
    398 .if !target(kernelnames)
    399 kernelnames:
    400 	@echo "${KERNELS} ${EXTRA_KERNELS}"
    401 .endif
    402 
    403 .if !target(__CLEANDEPEND)
    404 __CLEANDEPEND: .USE
    405 	echo .depend ${DEPS} | xargs rm -f --
    406 .endif
    407 
    408 # do not !target these, the kern and compat Makefiles augment them
    409 cleandir distclean: __CLEANKERNEL __CLEANDEPEND
    410 clean: __CLEANKERNEL
    411 depend: .depend
    412 dependall: depend .WAIT all
    413 
    414 .if !target(.depend)
    415 MKDEP_AFLAGS?=	${AFLAGS}
    416 MKDEP_CFLAGS?=	${CFLAGS}
    417 SSRCS=${MD_SFILES} ${SFILES}
    418 CSRCS=${MD_CFILES} ${MI_CFILES} ${CFILES}
    419 SRCS=${SSRCS} ${CSRCS}
    420 DEPS=	${SRCS:T:O:u:R:S/$/.d/g}
    421 
    422 .for _s in ${SSRCS}
    423 .if !target(${_s:T:R}.d)
    424 ${_s:T:R}.d: ${_s} assym.h
    425 	${_MKTARGET_CREATE}
    426 	${MKDEP} -f ${.TARGET} -- ${MKDEP_AFLAGS} \
    427 	    ${CPPFLAGS} ${CPPFLAGS.${_s:T}} ${_s}
    428 .endif
    429 .endfor
    430 .for _s in ${CSRCS}
    431 .if !target(${_s:T:R}.d)
    432 ${_s:T:R}.d: ${_s}
    433 	${_MKTARGET_CREATE}
    434 	${MKDEP} -f ${.TARGET} -- ${MKDEP_CFLAGS} \
    435 	    ${CPPFLAGS} ${CPPFLAGS.${_s:T}} ${_s}
    436 .endif
    437 .endfor
    438 
    439 assym.d: assym.h
    440 	${_MKTARGET_CREATE}
    441 	cat ${GENASSYM_CONF} ${GENASSYM_EXTRAS} | \
    442 	    ${GENASSYM} -- ${MKDEP} -f assym.dep -- \
    443 	    ${CFLAGS:N-Wa,*} ${CPPFLAGS}
    444 	${TOOL_SED} -e 's/.*\.o:.*\.c/assym.h:/' < assym.dep >${.TARGET}
    445 	rm -f assym.dep
    446 
    447 DEPS+=	assym.d
    448 
    449 .depend: ${DEPS}
    450 	${_MKTARGET_CREATE}
    451 	echo "${.ALLSRC}" | ${MKDEP} -D
    452 .endif
    453 
    454 .if !target(lint)
    455 ALLSFILES?=	${MD_SFILES} ${SFILES}
    456 LINTSTUBS?=	${ALLSFILES:T:R:C/^.*$/LintStub_&.c/g}
    457 KERNLINTFLAGS?=	-bcehnxzFS
    458 NORMAL_LN?=	${LINT} ${KERNLINTFLAGS} ${CPPFLAGS:M-[IDU]*} -i $<
    459 
    460 _lsrc=${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES}
    461 LOBJS?= ${_lsrc:T:S/.c$/.ln/g} ${LIBKERNLN} ${SYSLIBCOMPATLN}
    462 
    463 .for _sfile in ${ALLSFILES}
    464 LintStub_${_sfile:T:R}.c: ${_sfile} assym.h
    465 	${_MKTARGET_COMPILE}
    466 	${CC} -E -C ${AFLAGS} ${CPPFLAGS} ${_sfile} | \
    467 	      ${TOOL_AWK} -f $S/kern/genlintstub.awk >${.TARGET}
    468 .endfor
    469 
    470 .for _cfile in ${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES}
    471 ${_cfile:T:R}.ln: ${_cfile}
    472 	${_MKTARGET_COMPILE}
    473 	${NORMAL_LN}
    474 .endfor
    475 
    476 lint: ${LOBJS}
    477 	${LINT} ${KERNLINTFLAGS} ${CPPFLAGS:M-[IDU]*} ${LOBJS}
    478 .endif
    479 
    480 # Attempt to do a syntax-only compile of the entire kernel as one entity.
    481 # Alas, bugs in the GCC C frontend prevent this from completely effective
    482 # but information can be gleaned from the output.
    483 syntax-only: ${CFILES} ${MD_CFILES}
    484 	${CC} -fsyntax-only -combine ${CFLAGS} ${CPPFLAGS} \
    485 		${CFILES} ${MD_CFILES}
    486 
    487 # List of kernel images that will be installed into the root file system.
    488 # Some platforms may need to install more than one (e.g. a netbsd.aout file
    489 # to be loaded directly by the firmware), so this can be overriden by them.
    490 KERNIMAGES?=	netbsd
    491 
    492 .if !target(install)
    493 # The install target can be redefined by putting a
    494 # install-kernel-${MACHINE_NAME} target into /etc/mk.conf
    495 MACHINE_NAME!=  uname -n
    496 install: install-kernel-${MACHINE_NAME}
    497 .if !target(install-kernel-${MACHINE_NAME})
    498 install-kernel-${MACHINE_NAME}:
    499 .for _K in ${KERNIMAGES}
    500 	rm -f ${DESTDIR}/o${_K}
    501 	ln ${DESTDIR}/${_K} ${DESTDIR}/o${_K}
    502 	cp ${_K} ${DESTDIR}/n${_K}
    503 	mv ${DESTDIR}/n${_K} ${DESTDIR}/${_K}
    504 .endfor
    505 .endif
    506 .endif
    507 
    508 .if !target(tags)
    509 tags:
    510 	@echo "see $S/kern/Makefile for tags"
    511 .endif
    512 
    513 EXTRA_CLEAN+= cscope.out cscope.tmp
    514 .if !target(cscope.out)
    515 cscope.out: Makefile depend
    516 	${_MKTARGET_CREATE}
    517 	@${TOOL_SED} 's/[^:]*://;s/^ *//;s/ *\\ *$$//;' lib/kern/.depend \
    518 	    | tr -s ' ' '\n' \
    519 	    | ${TOOL_SED} ';s|^../../||;' \
    520 	    > cscope.tmp
    521 	@${TOOL_SED} 's/[^:]*://;s/^ *//;s/ *\\ *$$//;' lib/compat/.depend \
    522 	    | tr -s ' ' '\n' \
    523 	    | ${TOOL_SED} 's|^../../||;' \
    524 	    >> cscope.tmp
    525 	@echo ${SRCS} | cat - cscope.tmp | tr -s ' ' '\n' | sort -u | \
    526 	    ${CSCOPE} -k -i - -b `echo ${INCLUDES} | ${TOOL_SED} s/-nostdinc//`
    527 #	cscope doesn't write cscope.out if it's uptodate, so ensure
    528 #	make doesn't keep calling cscope when not needed.
    529 	@rm -f cscope.tmp; touch cscope.out
    530 .endif
    531 
    532 .if !target(cscope)
    533 cscope: cscope.out
    534 	@${CSCOPE} -d
    535 .endif
    536 
    537 EXTRA_CLEAN+= ID
    538 .if !target(mkid)
    539 .PHONY: mkid
    540 mkid: ID
    541 
    542 ID: Makefile depend
    543 	${_MKTARGET_CREATE}
    544 	@${MKID} \
    545 	    `${TOOL_SED} 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' \
    546 			lib/kern/.depend lib/compat/.depend \
    547 		    | tr ' ' '\n' \
    548 		    | ${TOOL_SED} "s|^../../||" \
    549 		    | sort -u` \
    550 	    `${TOOL_SED} 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' \
    551 			.depend \
    552 		    | tr ' ' '\n' \
    553 		    | sort -u`
    554 
    555 .endif
    556 
    557 .include "${S}/gdbscripts/Makefile.inc"
    558 
    559 EXTRA_CLEAN+= .gdbinit
    560 .gdbinit: Makefile ${S}/gdbscripts/Makefile.inc
    561 	${_MKTARGET_CREATE}
    562 	rm -f .gdbinit
    563 .for __gdbinit in ${SYS_GDBINIT}
    564 	echo "source ${S}/gdbscripts/${__gdbinit}" >> .gdbinit
    565 .endfor
    566 .if defined(GDBINIT) && !empty(GDBINIT)
    567 .for __gdbinit in ${GDBINIT}
    568 	echo "source ${__gdbinit}" >> .gdbinit
    569 .endfor
    570 .endif
    571 
    572 # The following files use alloca(3) or variable array allocations.
    573 # Their full name is noted as documentation.
    574 VARSTACK=kern/uipc_socket.c miscfs/genfs/genfs_vnops.c \
    575     nfs/nfs_bio.c uvm/uvm_bio.c \
    576     uvm/uvm_pager.c dev/ic/aic7xxx.c dev/ic/aic79xx.c arch/xen/i386/gdt.c \
    577     dev/ofw/ofw_subr.c
    578 
    579 .for __varstack in ${VARSTACK}
    580 COPTS.${__varstack:T} += -Wno-stack-protector
    581 .endfor
    582 
    583 AFLAGS+=	${AOPTS.${.IMPSRC:T}}
    584 CFLAGS+=	${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}}
    585 CPPFLAGS+=	${CPPFLAGS.${.IMPSRC:T}}
    586 CWARNFLAGS+=	${CWARNFLAGS.${.IMPSRC:T}}
    587 
    588 .include <bsd.files.mk>
    589 .include <bsd.clang-analyze.mk>
    590 
    591 ##
    592 ## the end
    593 ##
    594