Home | History | Annotate | Line # | Download | only in conf
Makefile.kern.inc revision 1.149.6.2
      1 #	$NetBSD: Makefile.kern.inc,v 1.149.6.2 2012/04/05 21:33:22 mrg 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 . if defined(HAVE_GCC) || defined(HAVE_PCC)
     74 CWARNFLAGS+=	-Wno-pointer-sign -Wno-attributes
     75 .  if ${MACHINE} == "i386" || ${MACHINE_ARCH} == "x86_64" || \
     76 	${MACHINE_ARCH} == "sparc64" || ${MACHINE} == "prep"
     77 CWARNFLAGS+=	-Wextra -Wno-unused-parameter
     78 .  endif
     79 .  if ${MACHINE} == "i386" || ${MACHINE_ARCH} == "x86_64"
     80 CWARNFLAGS+=	-Wold-style-definition
     81 .  endif
     82 . endif
     83 # Add -Wno-sign-compare.  -Wsign-compare is included in -Wall as of GCC 3.3,
     84 # but our sources aren't up for it yet.
     85 CWARNFLAGS+=	-Wno-sign-compare
     86 .endif
     87 
     88 CWARNFLAGS.clang+=	-Wno-unknown-pragmas -Wno-conversion \
     89 			-Wno-self-assign
     90 
     91 CWARNFLAGS.ah_regdomain.c= ${${ACTIVE_CC} == "clang":? \
     92     -Wno-shift-count-negative -Wno-shift-count-overflow:}
     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)
    100 CFLAGS+=	-fno-strict-aliasing
    101 .endif
    102 
    103 .if ${USE_SSP:Uno} == "yes"
    104 COPTS.kern_ssp.c+=	-fno-stack-protector -D__SSP__
    105 .endif
    106 
    107 # for multi-cpu machines, cpu_hatch() straddles the init of
    108 # __stack_chk_guard, so ensure stack protection is disabled
    109 .if ${MACHINE} == "i386" || ${MACHINE_ARCH} == "x86_64"
    110 COPTS.cpu.c+=		-fno-stack-protector
    111 .endif
    112 
    113 # If we want the bpendtsleep: label in kern_synch.c, we need to use
    114 # -fno-reorder-blocks.  Don't make this a config(1) defflag without
    115 # making sure this fragment remains valid.
    116 .if defined(HAVE_GCC) && !empty(${CFLAGS:M-DKERN_SYNCH_BPENDTSLEEP_LABEL})
    117 COPTS.kern_synch.c+=	-fno-reorder-blocks
    118 .endif
    119 
    120 # Use the per-source COPTS variables to add -g to just those
    121 # files that match the shell patterns given in ${DEBUGLIST}
    122 #
    123 .for i in ${DEBUGLIST}
    124 . for j in ${CFILES:T:M$i.c}
    125 COPTS.${j}+=-g
    126 . endfor
    127 .endfor
    128 
    129 # Always compile debugsyms.c with debug information.
    130 # This allows gdb to use type informations.
    131 #
    132 COPTS.debugsyms.c+=	-g
    133 
    134 # Add CTF sections for DTrace
    135 .if defined(CTFCONVERT)
    136 COMPILE_CTFCONVERT=	${_MKSHECHO}\
    137 			${CTFCONVERT} ${CTFFLAGS} ${.TARGET} && \
    138 			${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
    139 .else
    140 COMPILE_CTFCONVERT=	${_MKSHNOECHO}
    141 .endif
    142 
    143 # compile rules: rules are named ${TYPE}_${SUFFIX} where TYPE is NORMAL or
    144 # NOPROF and SUFFIX is the file suffix, capitalized (e.g. C for a .c file).
    145 NORMAL_C?=	@${_MKSHMSG} "compile  ${.CURDIR:T}/${.TARGET}" && \
    146 		${_MKSHECHO}\
    147 		${CC} ${COPTS.${<:T}} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $< && \
    148 		${CC} ${COPTS.${<:T}} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $< && \
    149 		${COMPILE_CTFCONVERT}
    150 NOPROF_C?=	@${_MKSHMSG} "compile  ${.CURDIR:T}/${.TARGET}" && \
    151 		${_MKSHECHO}\
    152 		${CC} ${COPTS.${<:T}} ${CFLAGS} ${CPPFLAGS} -c $< && \
    153 		${CC} ${COPTS.${<:T}} ${CFLAGS} ${CPPFLAGS} -c $< && \
    154 		${COMPILE_CTFCONVERT}
    155 NORMAL_S?=	@${_MKSHMSG} "compile  ${.CURDIR:T}/${.TARGET}" && \
    156 		${_MKSHECHO}\
    157 		${CC} ${AFLAGS} ${AFLAGS.${<:T}} ${CPPFLAGS} -c $< && \
    158 		${CC} ${AFLAGS} ${AFLAGS.${<:T}} ${CPPFLAGS} -c $<
    159 
    160 ##
    161 ## (3) libkern and compat
    162 ##
    163 ## Set KERN_AS in the port Makefile to "obj" or "library".  The
    164 ## default is "library", as documented in $S/lib/libkern/Makefile.inc.
    165 ##
    166 
    167 ### find out what to use for libkern
    168 .include "$S/lib/libkern/Makefile.inc"
    169 .ifndef PROF
    170 LIBKERN?=	${KERNLIB}
    171 .else
    172 LIBKERN?=	${KERNLIB_PROF}
    173 .endif
    174 
    175 LIBKERNLN?=	${KERNLIBLN}
    176 
    177 ### find out what to use for libcompat
    178 .include "$S/compat/common/Makefile.inc"
    179 .ifndef PROF
    180 SYSLIBCOMPAT?=	${COMPATLIB}
    181 .else
    182 SYSLIBCOMPAT?=	${COMPATLIB_PROF}
    183 .endif
    184 
    185 SYSLIBCOMPATLN?=	${COMPATLIBLN}
    186 
    187 ##
    188 ## (4) local objects, compile rules, and dependencies
    189 ##
    190 ## Each port should have a corresponding section with settings for
    191 ## MD_CFILES, MD_SFILES, and MD_OBJS, along with build rules for same.
    192 ##
    193 MI_CFILES=devsw.c ioconf.c param.c
    194 # the need for a MI_SFILES variable is dubitable at best
    195 MI_OBJS=${MI_CFILES:S/.c/.o/}
    196 
    197 param.c: $S/conf/param.c
    198 	${_MKTARGET_CREATE}
    199 	rm -f param.c
    200 	cp $S/conf/param.c .
    201 
    202 param.o: Makefile
    203 
    204 .for _cfile in ${MI_CFILES}
    205 ${_cfile:T:R}.o: ${_cfile}
    206 	${NORMAL_C}
    207 .endfor
    208 
    209 ##
    210 ## (5) link settings
    211 ##
    212 ## TEXTADDR (or LOADADDRESS), LINKFORMAT, and any EXTRA_LINKFLAGS must
    213 ## be set in the port's Makefile.  The port specific definitions for
    214 ## LINKFLAGS_NORMAL and LINKFLAGS_DEBUG will added to the LINKFLAGS
    215 ## depending on the value of DEBUG.
    216 ##
    217 # load lines for config "xxx" will be emitted as:
    218 # xxx: ${SYSTEM_DEP} swapxxx.o
    219 #	${SYSTEM_LD_HEAD}
    220 #	${SYSTEM_LD} swapxxx.o
    221 #	${SYSTEM_LD_TAIL}
    222 SYSTEM_OBJ?=	${MD_OBJS} ${MI_OBJS} ${OBJS:O} ${SYSLIBCOMPAT} ${LIBKERN}
    223 SYSTEM_DEP?=	Makefile ${SYSTEM_OBJ:O} .gdbinit
    224 .if defined(KERNLDSCRIPT)
    225 SYSTEM_DEP+=	${KERNLDSCRIPT}
    226 .endif
    227 .if defined(CTFMERGE)
    228 SYSTEM_CTFMERGE= ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJ} ${EXTRA_OBJ} vers.o
    229 .else
    230 SYSTEM_CTFMERGE= ${_MKSHECHO}
    231 .endif
    232 SYSTEM_LD_HEAD?=@rm -f $@
    233 SYSTEM_LD?=	@${_MKSHMSG} "   link  ${.CURDIR:T}/${.TARGET}"; \
    234 		${_MKSHECHO}\
    235 		${LD} -Map $@.map --cref ${LINKFLAGS} -o $@ '$${SYSTEM_OBJ}' '$${EXTRA_OBJ}' vers.o; \
    236 		${LD} -Map $@.map --cref ${LINKFLAGS} -o $@ ${SYSTEM_OBJ} ${EXTRA_OBJ} vers.o
    237 
    238 AUTO_SYMTAB_SPACE?=   yes
    239 
    240 .if empty(AUTO_SYMTAB_SPACE:M[Yy][Ee][Ss]) || defined(_SYMTAB_SPACE_ADJUSTED)
    241 SYSTEM_LD_TAIL_DBSYM?=	true
    242 .else
    243 SYSTEM_LD_TAIL_DBSYM?=	\
    244 	if grep '^\#define.*SYMTAB_SPACE' opt_ksyms.h > /dev/null; then \
    245 		_modify_opt_ksyms_h () {				\
    246 			${TOOL_SED}					\
    247 	-e 's/^\(\#define.*SYMTAB_SPACE[ 	]*\)[0-9]*/\1'$$1/	\
    248 	-e 's/\(.equiv[ 	]*_KERNEL_OPT_SYMTAB_SPACE,0x\)[0-9a-f]*/\1'$$(printf %x $$1)/ \
    249 			opt_ksyms.h > opt_ksyms.h.ADJ &&		\
    250 			mv opt_ksyms.h.ADJ opt_ksyms.h &&		\
    251 			${MAKE} ${MFLAGS} _SYMTAB_SPACE_ADJUSTED=1 $@;	\
    252 		};							\
    253 		_adj_symtab_space () {				\
    254 			set -- $$(${DBSYM} -p $@); 		\
    255 			echo Symtab size: $$1, space: $$2;	\
    256 			if [ "$$1" -gt "$$2" ]; then		\
    257 				echo Adjusting symtab space;	\
    258 				rm -f $@;			\
    259 				_modify_opt_ksyms_h $$1;	\
    260 			fi;					\
    261 		};						\
    262 		_adj_symtab_space;				\
    263 	fi
    264 .endif
    265 
    266 .if defined(_SYMTAB_SPACE_ADJUSTED)
    267 SYSTEM_LD_TAIL?=true
    268 .else
    269 SYSTEM_LD_TAIL?=@${SYSTEM_LD_TAIL_DBSYM} ; \
    270 		${TOOL_SED} '/const char sccs/!d;s/.*@(.)//;s/\\.*//' vers.c; \
    271 		${SIZE} $@; chmod 755 $@; \
    272 		${SYSTEM_CTFMERGE}
    273 .endif
    274 
    275 TEXTADDR?=	${LOADADDRESS}			# backwards compatibility
    276 LINKTEXT?=	${TEXTADDR:C/.+/-Ttext &/}
    277 LINKDATA?=	${DATAADDR:C/.+/-Tdata &/}
    278 ENTRYPOINT?=	start
    279 LINKENTRY?=	${ENTRYPOINT:C/.+/-e &/}
    280 LINKFLAGS?=	${LINKFORMAT} ${LINKTEXT} ${LINKDATA} ${LINKENTRY} \
    281 		${EXTRA_LINKFLAGS}
    282 
    283 LINKFLAGS_DEBUG?=	-X
    284 SYSTEM_LD_TAIL_DEBUG?=; \
    285 		echo mv -f $@ $@.gdb; mv -f $@ $@.gdb; \
    286 		echo ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb; \
    287 		${STRIP} ${STRIPFLAGS} -o $@ $@.gdb
    288 LINKFLAGS_NORMAL?=	-S
    289 STRIPFLAGS?=	-g
    290 
    291 DEBUG?=
    292 .if !empty(DEBUG:M-g*)
    293 SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_DEBUG}
    294 LINKFLAGS+=	${LINKFLAGS_DEBUG}
    295 EXTRA_KERNELS+= ${KERNELS:@.KERNEL.@${.KERNEL.}.gdb@}
    296 CTFFLAGS+=	-g
    297 .if !defined(_SYMTAB_SPACE_ADJUSTED)
    298 SYSTEM_LD_TAIL+=; \
    299 	if grep '^\#define.*SYMTAB_SPACE' opt_ksyms.h > /dev/null; then \
    300 		echo "${DBSYM} $@.gdb"; \
    301 		${DBSYM} $@.gdb || (rm -f $@ ; exit 1) || exit 1; \
    302 	fi
    303 .endif
    304 .elifndef PROF
    305 LINKFLAGS+=	${LINKFLAGS_NORMAL}
    306 .endif
    307 
    308 .if !defined(_SYMTAB_SPACE_ADJUSTED)
    309 SYSTEM_LD_TAIL+=; \
    310 	if grep '^\#define.*SYMTAB_SPACE' opt_ksyms.h > /dev/null; then \
    311 		echo "${DBSYM} $@"; \
    312 		${DBSYM} $@ || (rm -f $@ ; exit 1) || exit 1; \
    313 	fi
    314 .endif
    315 
    316 SYSTEM_LD_HEAD+=${SYSTEM_LD_HEAD_EXTRA}
    317 SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_EXTRA}
    318 
    319 ##
    320 ## (6) port independent targets and dependencies: assym.h, vers.o
    321 ##
    322 .if !target(assym.h)
    323 assym.h: ${GENASSYM_CONF} ${GENASSYM_EXTRAS}
    324 	${_MKTARGET_CREATE}
    325 	cat ${GENASSYM_CONF} ${GENASSYM_EXTRAS} | \
    326 	    ${GENASSYM} -- ${CC} ${CFLAGS:N-Wa,*} ${CPPFLAGS} ${PROF} \
    327 	    > assym.h.tmp && \
    328 	mv -f assym.h.tmp assym.h
    329 ${MD_SFILES:C/\.[Ss]/.o/} ${SFILES:C/\.[Ss]/.o/}: assym.h
    330 .endif
    331 
    332 MKREPRO?=no
    333 
    334 .if ${MKREPRO} == "yes"
    335 _NVFLAGS=${NVFLAGS} -r
    336 .else
    337 _NVFLAGS=${NVFLAGS}
    338 .endif
    339 
    340 .if !target(vers.o)
    341 newvers: vers.o
    342 vers.o: ${SYSTEM_DEP} ${SYSTEM_SWAP_DEP} $S/conf/newvers.sh $S/conf/osrelease.sh
    343 	${_MKMSG_CREATE} vers.c
    344 	${HOST_SH} $S/conf/newvers.sh ${_NVFLAGS}
    345 	${_MKTARGET_COMPILE}
    346 	${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c vers.c
    347 .endif
    348 
    349 .if defined(MEMORY_DISK_IMAGE)
    350 md_root_image.h: ${MEMORY_DISK_IMAGE}
    351 	${_MKTARGET_CREATE}
    352 	${TOOL_HEXDUMP} -v -e '"\t" 8/1 "0x%02x, " "\n"' ${.ALLSRC} > ${.TARGET}
    353 
    354 # XXX This is only needed when building md_root.o
    355 CPPFLAGS+=	-DMEMORY_DISK_IMAGE
    356 md_root.o: md_root_image.h
    357 .endif
    358 
    359 # depend on MEMORY_DISK_IMAGE configuration
    360 md_root.o: Makefile
    361 
    362 # depend on root or device configuration
    363 autoconf.o conf.o: Makefile
    364 
    365 # depend on network or filesystem configuration
    366 uipc_proto.o vfs_conf.o: Makefile
    367 
    368 # depend on maxusers and CPU configuration
    369 assym.h machdep.o: Makefile
    370 
    371 ##
    372 ## (7) misc targets: install, clean(dir), depend(all), lint, links, tags,
    373 ##                   cscope, mkid
    374 ##
    375 ## Any ports that have other stuff to be cleaned up should fill in
    376 ## EXTRA_CLEAN.  Some ports may want different settings for
    377 ## KERNLINTFLAGS, MKDEP_CFLAGS, or MKDEP_AFLAGS.
    378 ##
    379 .if !target(__CLEANKERNEL)
    380 __CLEANKERNEL: .USE
    381 	${_MKMSG} "${.TARGET}ing the kernel objects"
    382 	rm -f ${KERNELS} eddep tags *.[io] *.ln [a-z]*.s vers.c \
    383 	    [Ee]rrs linterrs makelinks assym.h.tmp assym.h \
    384 	    ${EXTRA_KERNELS} ${EXTRA_CLEAN}
    385 .endif
    386 
    387 .if !target(kernelnames)
    388 kernelnames:
    389 	@echo "${KERNELS} ${EXTRA_KERNELS}"
    390 .endif
    391 
    392 .if !target(__CLEANDEPEND)
    393 __CLEANDEPEND: .USE
    394 	echo .depend ${DEPS} | xargs rm -f --
    395 .endif
    396 
    397 # do not !target these, the kern and compat Makefiles augment them
    398 cleandir distclean: __CLEANKERNEL __CLEANDEPEND
    399 clean: __CLEANKERNEL
    400 depend: .depend
    401 dependall: depend .WAIT all
    402 
    403 .if !target(.depend)
    404 MKDEP_AFLAGS?=	${AFLAGS}
    405 MKDEP_CFLAGS?=	${CFLAGS}
    406 SSRCS=${MD_SFILES} ${SFILES}
    407 CSRCS=${MD_CFILES} ${MI_CFILES} ${CFILES}
    408 SRCS=${SSRCS} ${CSRCS}
    409 DEPS=	${SRCS:T:O:u:R:S/$/.d/g}
    410 
    411 .for _s in ${SSRCS}
    412 .if !target(${_s:T:R}.d)
    413 ${_s:T:R}.d: ${_s} assym.h
    414 	${_MKTARGET_CREATE}
    415 	${MKDEP} -f ${.TARGET} -- ${MKDEP_AFLAGS} \
    416 	    ${CPPFLAGS} ${CPPFLAGS.${_s:T}} ${_s}
    417 .endif
    418 .endfor
    419 .for _s in ${CSRCS}
    420 .if !target(${_s:T:R}.d)
    421 ${_s:T:R}.d: ${_s}
    422 	${_MKTARGET_CREATE}
    423 	${MKDEP} -f ${.TARGET} -- ${MKDEP_CFLAGS} \
    424 	    ${CPPFLAGS} ${CPPFLAGS.${_s:T}} ${_s}
    425 .endif
    426 .endfor
    427 
    428 assym.d: assym.h
    429 	${_MKTARGET_CREATE}
    430 	cat ${GENASSYM_CONF} ${GENASSYM_EXTRAS} | \
    431 	    ${GENASSYM} -- ${MKDEP} -f assym.dep -- \
    432 	    ${CFLAGS:N-Wa,*} ${CPPFLAGS}
    433 	${TOOL_SED} -e 's/.*\.o:.*\.c/assym.h:/' < assym.dep >${.TARGET}
    434 	rm -f assym.dep
    435 
    436 DEPS+=	assym.d
    437 
    438 .depend: ${DEPS}
    439 	${_MKTARGET_CREATE}
    440 	echo "${.ALLSRC}" | ${MKDEP} -D
    441 .endif
    442 
    443 .if !target(lint)
    444 ALLSFILES?=	${MD_SFILES} ${SFILES}
    445 LINTSTUBS?=	${ALLSFILES:T:R:C/^.*$/LintStub_&.c/g}
    446 KERNLINTFLAGS?=	-bcehnxzFS
    447 NORMAL_LN?=	${LINT} ${KERNLINTFLAGS} ${CPPFLAGS:M-[IDU]*} -i $<
    448 
    449 _lsrc=${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES}
    450 LOBJS?= ${_lsrc:T:S/.c$/.ln/g} ${LIBKERNLN} ${SYSLIBCOMPATLN}
    451 
    452 .for _sfile in ${ALLSFILES}
    453 LintStub_${_sfile:T:R}.c: ${_sfile} assym.h
    454 	${_MKTARGET_COMPILE}
    455 	${CC} -E -C ${AFLAGS} ${CPPFLAGS} ${_sfile} | \
    456 	      ${TOOL_AWK} -f $S/kern/genlintstub.awk >${.TARGET}
    457 .endfor
    458 
    459 .for _cfile in ${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES}
    460 ${_cfile:T:R}.ln: ${_cfile}
    461 	${_MKTARGET_COMPILE}
    462 	${NORMAL_LN}
    463 .endfor
    464 
    465 lint: ${LOBJS}
    466 	${LINT} ${KERNLINTFLAGS} ${CPPFLAGS:M-[IDU]*} ${LOBJS}
    467 .endif
    468 
    469 # Attempt to do a syntax-only compile of the entire kernel as one entity.
    470 # Alas, bugs in the GCC C frontend prevent this from completely effective
    471 # but information can be gleaned from the output.
    472 syntax-only: ${CFILES} ${MD_CFILES}
    473 	${CC} -fsyntax-only -combine ${CFLAGS} ${CPPFLAGS} \
    474 		${CFILES} ${MD_CFILES}
    475 
    476 # List of kernel images that will be installed into the root file system.
    477 # Some platforms may need to install more than one (e.g. a netbsd.aout file
    478 # to be loaded directly by the firmware), so this can be overriden by them.
    479 KERNIMAGES?=	netbsd
    480 
    481 .if !target(install)
    482 # The install target can be redefined by putting a
    483 # install-kernel-${MACHINE_NAME} target into /etc/mk.conf
    484 MACHINE_NAME!=  uname -n
    485 install: install-kernel-${MACHINE_NAME}
    486 .if !target(install-kernel-${MACHINE_NAME})
    487 install-kernel-${MACHINE_NAME}:
    488 .for _K in ${KERNIMAGES}
    489 	rm -f ${DESTDIR}/o${_K}
    490 	ln ${DESTDIR}/${_K} ${DESTDIR}/o${_K}
    491 	cp ${_K} ${DESTDIR}/n${_K}
    492 	mv ${DESTDIR}/n${_K} ${DESTDIR}/${_K}
    493 .endfor
    494 .endif
    495 .endif
    496 
    497 .if !target(tags)
    498 tags:
    499 	@echo "see $S/kern/Makefile for tags"
    500 .endif
    501 
    502 EXTRA_CLEAN+= cscope.out cscope.tmp
    503 .if !target(cscope.out)
    504 cscope.out: Makefile depend
    505 	${_MKTARGET_CREATE}
    506 	@${TOOL_SED} 's/[^:]*://;s/^ *//;s/ *\\ *$$//;' lib/kern/.depend \
    507 	    | tr -s ' ' '\n' \
    508 	    | ${TOOL_SED} ';s|^../../||;' \
    509 	    > cscope.tmp
    510 	@${TOOL_SED} 's/[^:]*://;s/^ *//;s/ *\\ *$$//;' lib/compat/.depend \
    511 	    | tr -s ' ' '\n' \
    512 	    | ${TOOL_SED} 's|^../../||;' \
    513 	    >> cscope.tmp
    514 	@echo ${SRCS} | cat - cscope.tmp | tr -s ' ' '\n' | sort -u | \
    515 	    ${CSCOPE} -k -i - -b `echo ${INCLUDES} | ${TOOL_SED} s/-nostdinc//`
    516 #	cscope doesn't write cscope.out if it's uptodate, so ensure
    517 #	make doesn't keep calling cscope when not needed.
    518 	@rm -f cscope.tmp; touch cscope.out
    519 .endif
    520 
    521 .if !target(cscope)
    522 cscope: cscope.out
    523 	@${CSCOPE} -d
    524 .endif
    525 
    526 EXTRA_CLEAN+= ID
    527 .if !target(mkid)
    528 .PHONY: mkid
    529 mkid: ID
    530 
    531 ID: Makefile depend
    532 	${_MKTARGET_CREATE}
    533 	@${MKID} \
    534 	    `${TOOL_SED} 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' \
    535 			lib/kern/.depend lib/compat/.depend \
    536 		    | tr ' ' '\n' \
    537 		    | ${TOOL_SED} "s|^../../||" \
    538 		    | sort -u` \
    539 	    `${TOOL_SED} 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' \
    540 			.depend \
    541 		    | tr ' ' '\n' \
    542 		    | sort -u`
    543 
    544 .endif
    545 
    546 .include "${S}/gdbscripts/Makefile.inc"
    547 
    548 EXTRA_CLEAN+= .gdbinit
    549 .gdbinit: Makefile ${S}/gdbscripts/Makefile.inc
    550 	${_MKTARGET_CREATE}
    551 	rm -f .gdbinit
    552 .for __gdbinit in ${SYS_GDBINIT}
    553 	echo "source ${S}/gdbscripts/${__gdbinit}" >> .gdbinit
    554 .endfor
    555 .if defined(GDBINIT) && !empty(GDBINIT)
    556 .for __gdbinit in ${GDBINIT}
    557 	echo "source ${__gdbinit}" >> .gdbinit
    558 .endfor
    559 .endif
    560 
    561 # The following files use alloca(3) or variable array allocations.
    562 # Their full name is noted as documentation.
    563 VARSTACK=kern/uipc_socket.c miscfs/genfs/genfs_vnops.c \
    564     nfs/nfs_bio.c uvm/uvm_bio.c \
    565     uvm/uvm_pager.c dev/ic/aic7xxx.c dev/ic/aic79xx.c arch/xen/i386/gdt.c \
    566     dev/ofw/ofw_subr.c
    567 
    568 .if defined(HAVE_GCC) || defined(HAVE_PCC)
    569 .for __varstack in ${VARSTACK}
    570 COPTS.${__varstack:T} += -Wno-stack-protector
    571 .endfor
    572 .endif
    573 
    574 AFLAGS+=	${AOPTS.${.IMPSRC:T}}
    575 CFLAGS+=	${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}}
    576 CPPFLAGS+=	${CPPFLAGS.${.IMPSRC:T}}
    577 CWARNFLAGS+=	${CWARNFLAGS.${.IMPSRC:T}}
    578 
    579 .include <bsd.files.mk>
    580 .include <bsd.clang-analyze.mk>
    581 
    582 ##
    583 ## the end
    584 ##
    585