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Makefile.kern.inc revision 1.68 
      1 #	$NetBSD: Makefile.kern.inc,v 1.68 2005/06/18 22:56:02 martin 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 _MKMSG_CREATE?=		:
     41 _MKTARGET_COMPILE?=	:
     42 _MKTARGET_CREATE?=	:
     43 
     44 ##
     45 ## (1) port independent source tree identification
     46 ##
     47 # source tree is located via $S relative to the compilation directory
     48 .ifndef S
     49 S!=	cd ../../../..; pwd
     50 .endif
     51 
     52 ##
     53 ## (2) compile settings
     54 ##
     55 ## CPPFLAGS, CFLAGS, and AFLAGS must be set in the port's Makefile
     56 ##
     57 _ISGCC295!=		${CC} --version 2>/dev/null | grep 2.95 2>/dev/null || echo 0
     58 INCLUDES?=	-I. ${EXTRA_INCLUDES} -I$S/arch -I$S -nostdinc
     59 CPPFLAGS+=	${INCLUDES} ${IDENT} ${PARAM} -D_KERNEL -D_KERNEL_OPT
     60 DEFCOPTS?=	-O2
     61 COPTS?=		${DEFCOPTS}
     62 DBG=		# might contain unwanted -Ofoo
     63 DEFWARNINGS?=	yes
     64 .if (${DEFWARNINGS} == "yes")
     65 .if !defined(NOGCCERROR)
     66 CWARNFLAGS+=	-Werror
     67 .endif
     68 CWARNFLAGS+=	-Wall -Wno-main -Wno-format-zero-length -Wpointer-arith
     69 CWARNFLAGS+=	-Wmissing-prototypes -Wstrict-prototypes
     70 .if !${_ISGCC295}
     71 CWARNFLAGS+=	-Wreturn-type
     72 .endif
     73 CWARNFLAGS+=	-Wswitch -Wshadow
     74 CWARNFLAGS+=	-Wcast-qual -Wwrite-strings
     75 # Add -Wno-sign-compare.  -Wsign-compare is included in -Wall as of GCC 3.3,
     76 # but our sources aren't up for it yet.
     77 CWARNFLAGS+=	-Wno-sign-compare
     78 .endif
     79 
     80 CFLAGS+=	${CPUFLAGS} -ffreestanding
     81 CFLAGS+=	${CPUFLAGS} ${DEBUG} ${COPTS} ${CWARNFLAGS}
     82 AFLAGS+=	${CPUFLAGS} -D_LOCORE
     83 
     84 # Disable unitialized warnings with 2.95 - it gets it wrong way too often
     85 .if ${_ISGCC295}
     86 CWARNFLAGS+=	-Wno-uninitialized
     87 .else
     88 CFLAGS+=	-fno-zero-initialized-in-bss
     89 .endif
     90 
     91 # Use the per-source COPTS variables to add -g to just those
     92 # files that match the shell patterns given in ${DEBUGLIST}
     93 #
     94 .for i in ${DEBUGLIST}
     95 .for j in ${CFILES:T:M$i.c}
     96 COPTS.${j}+=-g
     97 .endfor
     98 .endfor
     99 
    100 # compile rules: rules are named ${TYPE}_${SUFFIX} where TYPE is NORMAL or
    101 # NOPROF and SUFFIX is the file suffix, capitalized (e.g. C for a .c file).
    102 NORMAL_C?=	@${_MKSHMSG} "compile  ${.CURDIR:T}/${.TARGET}"; \
    103 		${_MKSHECHO}\
    104 		${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $<; \
    105 		${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $<
    106 NOPROF_C?=	@${_MKSHMSG} "compile  ${.CURDIR:T}/${.TARGET}"; \
    107 		${_MKSHECHO}\
    108 		${CC} ${CFLAGS} ${CPPFLAGS} -c $<; \
    109 		${CC} ${CFLAGS} ${CPPFLAGS} -c $<
    110 NORMAL_S?=	@${_MKSHMSG} "compile  ${.CURDIR:T}/${.TARGET}"; \
    111 		${_MKSHECHO}\
    112 		${CC} ${AFLAGS} ${CPPFLAGS} -c $<; \
    113 		${CC} ${AFLAGS} ${CPPFLAGS} -c $<
    114 
    115 ##
    116 ## (3) libkern and compat
    117 ##
    118 ## Set KERN_AS in the port Makefile to "obj" or "library".  The
    119 ## default is "library", as documented in $S/lib/libkern/Makefile.inc.
    120 ##
    121 
    122 ### find out what to use for libkern
    123 .include "$S/lib/libkern/Makefile.inc"
    124 .ifndef PROF
    125 LIBKERN?=	${KERNLIB}
    126 .else
    127 LIBKERN?=	${KERNLIB_PROF}
    128 .endif
    129 
    130 LIBKERNLN?=	${KERNLIBLN}
    131 
    132 ### find out what to use for libcompat
    133 .include "$S/compat/common/Makefile.inc"
    134 .ifndef PROF
    135 SYSLIBCOMPAT?=	${COMPATLIB}
    136 .else
    137 SYSLIBCOMPAT?=	${COMPATLIB_PROF}
    138 .endif
    139 
    140 SYSLIBCOMPATLN?=	${COMPATLIBLN}
    141 
    142 ##
    143 ## (4) local objects, compile rules, and dependencies
    144 ##
    145 ## Each port should have a corresponding section with settings for
    146 ## MD_CFILES, MD_SFILES, and MD_OBJS, along with build rules for same.
    147 ##
    148 MI_CFILES=devsw.c ioconf.c param.c
    149 # the need for a MI_SFILES variable is dubitable at best
    150 MI_OBJS=${MI_CFILES:S/.c/.o/}
    151 
    152 param.c: $S/conf/param.c
    153 	${_MKTARGET_CREATE}
    154 	rm -f param.c
    155 	cp $S/conf/param.c .
    156 
    157 param.o: Makefile
    158 
    159 .for _cfile in ${MI_CFILES}
    160 ${_cfile:T:R}.o: ${_cfile}
    161 	${NORMAL_C}
    162 .endfor
    163 
    164 ##
    165 ## (5) link settings
    166 ##
    167 ## TEXTADDR (or LOADADDRESS), LINKFORMAT, and any EXTRA_LINKFLAGS must
    168 ## be set in the port's Makefile.  The port specific definitions for
    169 ## LINKFLAGS_NORMAL and LINKFLAGS_DEBUG will added to the LINKFLAGS
    170 ## depending on the value of DEBUG.
    171 ##
    172 # load lines for config "xxx" will be emitted as:
    173 # xxx: ${SYSTEM_DEP} swapxxx.o
    174 #	${SYSTEM_LD_HEAD}
    175 #	${SYSTEM_LD} swapxxx.o
    176 #	${SYSTEM_LD_TAIL}
    177 SYSTEM_OBJ?=	${MD_OBJS} ${MI_OBJS} ${OBJS} ${SYSLIBCOMPAT} ${LIBKERN}
    178 SYSTEM_DEP?=	Makefile ${SYSTEM_OBJ} .gdbinit
    179 SYSTEM_LD_HEAD?=@rm -f $@
    180 SYSTEM_LD?=	@${_MKSHMSG} "   link  ${.CURDIR:T}/${.TARGET}"; \
    181 		${_MKSHECHO}\
    182 		${LD} ${LINKFLAGS} -o $@ '$${SYSTEM_OBJ}' '$${EXTRA_OBJ}' vers.o; \
    183 		${LD} ${LINKFLAGS} -o $@ ${SYSTEM_OBJ} ${EXTRA_OBJ} vers.o
    184 SYSTEM_LD_TAIL?=@${SIZE} $@; chmod 755 $@
    185 
    186 TEXTADDR?=	${LOADADDRESS}			# backwards compatibility
    187 LINKTEXT?=	${TEXTADDR:C/.+/-Ttext &/}
    188 LINKDATA?=	${DATAADDR:C/.+/-Tdata &/}
    189 ENTRYPOINT?=	start
    190 LINKENTRY?=	${ENTRYPOINT:C/.+/-e &/}
    191 LINKFLAGS?=	${LINKFORMAT} ${LINKTEXT} ${LINKDATA} ${LINKENTRY} \
    192 		${EXTRA_LINKFLAGS}
    193 
    194 LINKFLAGS_DEBUG?=	-X
    195 SYSTEM_LD_TAIL_DEBUG?=; \
    196 		echo mv -f $@ $@.gdb; mv -f $@ $@.gdb; \
    197 		echo ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb; \
    198 		${STRIP} ${STRIPFLAGS} -o $@ $@.gdb
    199 LINKFLAGS_NORMAL?=	-S
    200 STRIPFLAGS?=	-g
    201 
    202 DEBUG?=
    203 .if !empty(DEBUG:M-g*)
    204 SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_DEBUG}
    205 LINKFLAGS+=	${LINKFLAGS_DEBUG}
    206 EXTRA_KERNELS+= ${KERNELS:@.KERNEL.@${.KERNEL.}.gdb@}
    207 .elifndef PROF
    208 LINKFLAGS+=	${LINKFLAGS_NORMAL}
    209 .endif
    210 
    211 SYSTEM_LD_HEAD+=${SYSTEM_LD_HEAD_EXTRA}
    212 SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_EXTRA}
    213 
    214 ##
    215 ## (6) port independent targets and dependencies: assym.h, vers.o
    216 ##
    217 .if !target(assym.h)
    218 assym.h: ${GENASSYM_CONF} ${GENASSYM_EXTRAS}
    219 	${_MKTARGET_CREATE}
    220 	cat ${GENASSYM_CONF} ${GENASSYM_EXTRAS} | \
    221 	    ${GENASSYM} -- ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} \
    222 	    > assym.h.tmp && \
    223 	mv -f assym.h.tmp assym.h
    224 ${MD_SFILES:C/\.[Ss]/.o/} ${SFILES:C/\.[Ss]/.o/}: assym.h
    225 .endif
    226 
    227 .if !target(vers.o)
    228 newvers: vers.o
    229 vers.o: ${SYSTEM_DEP} ${SYSTEM_SWAP_DEP} $S/conf/newvers.sh $S/conf/osrelease.sh
    230 	${_MKMSG_CREATE} vers.c
    231 	${HOST_SH} $S/conf/newvers.sh
    232 	${_MKTARGET_COMPILE}
    233 	${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c vers.c
    234 .endif
    235 
    236 .if !target(config_time.h)
    237 EXTRA_CLEAN+= config_time.h
    238 config_time.h: Makefile
    239 	${_MKTARGET_CREATE}
    240 	cp config_time.src config_time.h
    241 .endif
    242 
    243 .if defined(MEMORY_DISK_IMAGE)
    244 md_root_image.h: ${MEMORY_DISK_IMAGE}
    245 	${_MKTARGET_CREATE}
    246 	${TOOL_HEXDUMP} -v -e '"\t" 8/1 "0x%02x, " "\n"' ${.ALLSRC} > ${.TARGET}
    247 
    248 # XXX This is only needed when building md_root.o
    249 CPPFLAGS+=	-DMEMORY_DISK_IMAGE
    250 md_root.o: md_root_image.h
    251 .endif
    252 
    253 # depend on MEMORY_DISK_IMAGE configuration
    254 md_root.o: Makefile
    255 
    256 # depend on root or device configuration
    257 autoconf.o conf.o: Makefile
    258 
    259 # depend on network or filesystem configuration
    260 uipc_proto.o vfs_conf.o: Makefile
    261 
    262 # depend on maxusers and CPU configuration
    263 assym.h machdep.o: Makefile
    264 
    265 ##
    266 ## (7) misc targets: install, clean(dir), depend(all), lint, links, tags,
    267 ##                   cscope, mkid
    268 ##
    269 ## Any ports that have other stuff to be cleaned up should fill in
    270 ## EXTRA_CLEAN.  Some ports may want different settings for
    271 ## KERNLINTFLAGS, MKDEP_CFLAGS, or MKDEP_AFLAGS.
    272 ##
    273 .if !target(__CLEANKERNEL)
    274 __CLEANKERNEL: .USE
    275 	${_MKMSG} "${.TARGET}ing the kernel objects"
    276 	rm -f ${KERNELS} eddep tags *.[io] *.ln [a-z]*.s vers.c \
    277 	    [Ee]rrs linterrs makelinks assym.h.tmp assym.h \
    278 	    ${EXTRA_KERNELS} ${EXTRA_CLEAN}
    279 .endif
    280 
    281 .if !target(kernelnames)
    282 kernelnames:
    283 	@echo "${KERNELS} ${EXTRA_KERNELS}"
    284 .endif
    285 
    286 .if !target(__CLEANDEPEND)
    287 __CLEANDEPEND: .USE
    288 	rm -f .depend
    289 .endif
    290 
    291 # do not !target these, the kern and compat Makefiles augment them
    292 cleandir distclean: __CLEANKERNEL __CLEANDEPEND
    293 clean: __CLEANKERNEL
    294 depend: .depend
    295 dependall: depend all
    296 
    297 .if !target(.depend)
    298 SRCS?=		${MD_SFILES} ${MD_CFILES} ${MI_CFILES} ${CFILES} ${SFILES}
    299 MKDEP_AFLAGS?=	${AFLAGS}
    300 MKDEP_CFLAGS?=	${CFLAGS}
    301 # We have to assume that we'll eventually run out of command line.
    302 # We already hit that on non-NetBSD hosts.
    303 _SFILES=${MD_SFILES} ${SFILES}
    304 _CFILES=${MD_CFILES} ${MI_CFILES} ${CFILES}
    305 _XargsMKDEP=${MKDEP:M*=*} xargs -t ${MKDEP:N*=*}
    306 _SubMake=${.MAKE} -f ${MAKEFILE} -DnoBEGIN
    307 
    308 # This dance is necessary to avoid long command lines.
    309 ${SRCS:S,^,list-,}:
    310 	@echo ${.TARGET:S,^list-,,}
    311 
    312 _sfiles: ${_SFILES:S,^,list-,}
    313 _cfiles: ${_CFILES:S,^,list-,}
    314 
    315 .depend: ${SRCS} assym.h config_time.h
    316 	${_MKTARGET_CREATE}
    317 	@> $@
    318 	@${_SubMake} _sfiles | ${_XargsMKDEP} -a -- ${MKDEP_AFLAGS} ${CPPFLAGS}
    319 	@${_SubMake} _cfiles | ${_XargsMKDEP} -a -- ${MKDEP_CFLAGS} ${CPPFLAGS}
    320 	cat ${GENASSYM_CONF} ${GENASSYM_EXTRAS} | \
    321 	    ${GENASSYM} -- ${MKDEP} -f assym.dep -- \
    322 	    ${CFLAGS} ${CPPFLAGS}
    323 	@sed -e 's/^.*\.o:.*\.c /assym.h: /' < assym.dep >> .depend
    324 	@rm -f assym.dep
    325 .endif
    326 
    327 .if !target(lint)
    328 ALLSFILES?=	${MD_SFILES} ${SFILES}
    329 LINTSTUBS?=	${ALLSFILES:T:R:C/^.*$/LintStub_&.c/g}
    330 KERNLINTFLAGS?=	-bcehnxzFS
    331 NORMAL_LN?=	${LINT} ${KERNLINTFLAGS} ${CPPFLAGS:M-[IDU]*} -i $<
    332 
    333 _lsrc=${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES}
    334 LOBJS?= ${_lsrc:T:S/.c$/.ln/g} ${LIBKERNLN} ${SYSLIBCOMPATLN}
    335 
    336 .for _sfile in ${ALLSFILES}
    337 LintStub_${_sfile:T:R}.c: ${_sfile} assym.h
    338 	${_MKTARGET_COMPILE}
    339 	${CC} -E -C ${AFLAGS} ${CPPFLAGS} ${_sfile} | \
    340 	      awk -f $S/kern/genlintstub.awk >${.TARGET}
    341 .endfor
    342 
    343 .for _cfile in ${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES}
    344 ${_cfile:T:R}.ln: ${_cfile}
    345 	${_MKTARGET_COMPILE}
    346 	${NORMAL_LN}
    347 .endfor
    348 
    349 lint: ${LOBJS}
    350 	${LINT} ${KERNLINTFLAGS} ${CPPFLAGS:M-[IDU]*} ${LOBJS}
    351 .endif
    352 
    353 .if !target(install)
    354 # The install target can be redefined by putting a
    355 # install-kernel-${MACHINE_NAME} target into /etc/mk.conf
    356 MACHINE_NAME!=  uname -n
    357 install: install-kernel-${MACHINE_NAME}
    358 .if !target(install-kernel-${MACHINE_NAME})
    359 install-kernel-${MACHINE_NAME}:
    360 	rm -f ${DESTDIR}/onetbsd
    361 	ln ${DESTDIR}/netbsd ${DESTDIR}/onetbsd
    362 	cp netbsd ${DESTDIR}/nnetbsd
    363 	mv ${DESTDIR}/nnetbsd ${DESTDIR}/netbsd
    364 .endif
    365 .endif
    366 
    367 .if !target(tags)
    368 tags:
    369 	@echo "see $S/kern/Makefile for tags"
    370 .endif
    371 
    372 EXTRA_CLEAN+= cscope.out cscope.tmp
    373 .if !target(cscope.out)
    374 cscope.out: Makefile depend
    375 	${_MKTARGET_CREATE}
    376 	@sed 's/[^:]*://;s/^ *//;s/ *\\ *$$//;' lib/kern/.depend | \
    377 	tr -s ' ' '\n' | sed 's|^\([^.\\]\)|lib/kern/\1|;s|^../../||;' > \
    378 	cscope.tmp
    379 	@sed 's/[^:]*://;s/^ *//;s/ *\\ *$$//;' lib/compat/.depend | \
    380 	tr -s ' ' '\n' | sed 's|^\([^.\\]\)|lib/compat/\1|;s|^../../||;' >> \
    381 	cscope.tmp
    382 	@echo ${SRCS} | cat - cscope.tmp | tr -s ' ' '\n' | sort -u | \
    383 	${CSCOPE} -k -i - -b `echo ${INCLUDES} | sed s/-nostdinc//`
    384 #	cscope doesn't write cscope.out if it's uptodate, so ensure
    385 #	make doesn't keep calling cscope when not needed.
    386 	@rm -f cscope.tmp; touch cscope.out
    387 .endif
    388 
    389 .if !target(cscope)
    390 cscope: cscope.out
    391 	@${CSCOPE} -d
    392 .endif
    393 
    394 EXTRA_CLEAN+= ID
    395 .if !target(mkid)
    396 .PHONY: mkid
    397 mkid: ID
    398 
    399 ID: Makefile depend
    400 	${_MKTARGET_CREATE}
    401 	@${MKID} `sed 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' lib/kern/.depend \
    402 	lib/compat/.depend | tr ' ' '\n' | sed "s|^../../||" | sort -u` \
    403 	`sed 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' .depend | tr ' ' '\n' \
    404 	| sort -u`
    405 
    406 .endif
    407 
    408 .include "${S}/gdbscripts/Makefile.inc"
    409 
    410 EXTRA_CLEAN+= .gdbinit
    411 .gdbinit: Makefile ${S}/gdbscripts/Makefile.inc
    412 	${_MKTARGET_CREATE}
    413 	rm -f .gdbinit
    414 .for __gdbinit in ${SYS_GDBINIT}
    415 	echo "source ${S}/gdbscripts/${__gdbinit}" >> .gdbinit
    416 .endfor
    417 .if defined(GDBINIT) && !empty(GDBINIT)
    418 .for __gdbinit in ${GDBINIT}
    419 	echo "source ${__gdbinit}" >> .gdbinit
    420 .endfor
    421 .endif
    422 
    423 CFLAGS+=	${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}}
    424 CPPFLAGS+=	${CPPFLAGS.${.IMPSRC:T}}
    425 CWARNFLAGS+=	${CWARNFLAGS.${.IMPSRC:T}}
    426 
    427 ##
    428 ## the end
    429 ##
    430