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Makefile.kern.inc revision 1.66 
      1 #	$NetBSD: Makefile.kern.inc,v 1.66 2005/06/02 05:11:55 sjg 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 INCLUDES?=	-I. ${EXTRA_INCLUDES} -I$S/arch -I$S -nostdinc
     58 CPPFLAGS+=	${INCLUDES} ${IDENT} ${PARAM} -D_KERNEL -D_KERNEL_OPT
     59 DEFCOPTS?=	-O2
     60 COPTS?=		${DEFCOPTS}
     61 DBG=		# might contain unwanted -Ofoo
     62 DEFWARNINGS?=	yes
     63 .if (${DEFWARNINGS} == "yes")
     64 .if !defined(NOGCCERROR)
     65 CWARNFLAGS+=	-Werror
     66 .endif
     67 CWARNFLAGS+=	-Wall -Wno-main -Wno-format-zero-length -Wpointer-arith
     68 CWARNFLAGS+=	-Wmissing-prototypes -Wstrict-prototypes
     69 CWARNFLAGS+=	-Wreturn-type -Wswitch -Wshadow
     70 CWARNFLAGS+=	-Wcast-qual -Wwrite-strings
     71 # Add -Wno-sign-compare.  -Wsign-compare is included in -Wall as of GCC 3.3,
     72 # but our sources aren't up for it yet.
     73 CWARNFLAGS+=	-Wno-sign-compare
     74 .endif
     75 
     76 CFLAGS+=	${CPUFLAGS} -ffreestanding
     77 CFLAGS+=	${CPUFLAGS} ${DEBUG} ${COPTS} ${CWARNFLAGS}
     78 AFLAGS+=	${CPUFLAGS} -D_LOCORE
     79 
     80 # Disable unitialized warnings with 2.95 - it gets it wrong way too often
     81 _ISGCC295!=		${CC} --version 2>/dev/null | grep 2.95 2>/dev/null || echo 0
     82 .if ${_ISGCC295}
     83 CWARNFLAGS+=	-Wno-uninitialized
     84 .else
     85 CFLAGS+=	-fno-zero-initialized-in-bss
     86 .endif
     87 
     88 # Use the per-source COPTS variables to add -g to just those
     89 # files that match the shell patterns given in ${DEBUGLIST}
     90 #
     91 .for i in ${DEBUGLIST}
     92 .for j in ${CFILES:T:M$i.c}
     93 COPTS.${j}+=-g
     94 .endfor
     95 .endfor
     96 
     97 # compile rules: rules are named ${TYPE}_${SUFFIX} where TYPE is NORMAL or
     98 # NOPROF and SUFFIX is the file suffix, capitalized (e.g. C for a .c file).
     99 NORMAL_C?=	@${_MKSHMSG} "compile  ${.CURDIR:T}/${.TARGET}"; \
    100 		${_MKSHECHO}\
    101 		${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $<; \
    102 		${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $<
    103 NOPROF_C?=	@${_MKSHMSG} "compile  ${.CURDIR:T}/${.TARGET}"; \
    104 		${_MKSHECHO}\
    105 		${CC} ${CFLAGS} ${CPPFLAGS} -c $<; \
    106 		${CC} ${CFLAGS} ${CPPFLAGS} -c $<
    107 NORMAL_S?=	@${_MKSHMSG} "compile  ${.CURDIR:T}/${.TARGET}"; \
    108 		${_MKSHECHO}\
    109 		${CC} ${AFLAGS} ${CPPFLAGS} -c $<; \
    110 		${CC} ${AFLAGS} ${CPPFLAGS} -c $<
    111 
    112 ##
    113 ## (3) libkern and compat
    114 ##
    115 ## Set KERN_AS in the port Makefile to "obj" or "library".  The
    116 ## default is "library", as documented in $S/lib/libkern/Makefile.inc.
    117 ##
    118 
    119 ### find out what to use for libkern
    120 .include "$S/lib/libkern/Makefile.inc"
    121 .ifndef PROF
    122 LIBKERN?=	${KERNLIB}
    123 .else
    124 LIBKERN?=	${KERNLIB_PROF}
    125 .endif
    126 
    127 LIBKERNLN?=	${KERNLIBLN}
    128 
    129 ### find out what to use for libcompat
    130 .include "$S/compat/common/Makefile.inc"
    131 .ifndef PROF
    132 SYSLIBCOMPAT?=	${COMPATLIB}
    133 .else
    134 SYSLIBCOMPAT?=	${COMPATLIB_PROF}
    135 .endif
    136 
    137 SYSLIBCOMPATLN?=	${COMPATLIBLN}
    138 
    139 ##
    140 ## (4) local objects, compile rules, and dependencies
    141 ##
    142 ## Each port should have a corresponding section with settings for
    143 ## MD_CFILES, MD_SFILES, and MD_OBJS, along with build rules for same.
    144 ##
    145 MI_CFILES=devsw.c ioconf.c param.c
    146 # the need for a MI_SFILES variable is dubitable at best
    147 MI_OBJS=${MI_CFILES:S/.c/.o/}
    148 
    149 param.c: $S/conf/param.c
    150 	${_MKTARGET_CREATE}
    151 	rm -f param.c
    152 	cp $S/conf/param.c .
    153 
    154 param.o: Makefile
    155 
    156 .for _cfile in ${MI_CFILES}
    157 ${_cfile:T:R}.o: ${_cfile}
    158 	${NORMAL_C}
    159 .endfor
    160 
    161 ##
    162 ## (5) link settings
    163 ##
    164 ## TEXTADDR (or LOADADDRESS), LINKFORMAT, and any EXTRA_LINKFLAGS must
    165 ## be set in the port's Makefile.  The port specific definitions for
    166 ## LINKFLAGS_NORMAL and LINKFLAGS_DEBUG will added to the LINKFLAGS
    167 ## depending on the value of DEBUG.
    168 ##
    169 # load lines for config "xxx" will be emitted as:
    170 # xxx: ${SYSTEM_DEP} swapxxx.o
    171 #	${SYSTEM_LD_HEAD}
    172 #	${SYSTEM_LD} swapxxx.o
    173 #	${SYSTEM_LD_TAIL}
    174 SYSTEM_OBJ?=	${MD_OBJS} ${MI_OBJS} ${OBJS} ${SYSLIBCOMPAT} ${LIBKERN}
    175 SYSTEM_DEP?=	Makefile ${SYSTEM_OBJ} .gdbinit
    176 SYSTEM_LD_HEAD?=@rm -f $@
    177 SYSTEM_LD?=	@${_MKSHMSG} "   link  ${.CURDIR:T}/${.TARGET}"; \
    178 		${_MKSHECHO}\
    179 		${LD} ${LINKFLAGS} -o $@ '$${SYSTEM_OBJ}' '$${EXTRA_OBJ}' vers.o; \
    180 		${LD} ${LINKFLAGS} -o $@ ${SYSTEM_OBJ} ${EXTRA_OBJ} vers.o
    181 SYSTEM_LD_TAIL?=@${SIZE} $@; chmod 755 $@
    182 
    183 TEXTADDR?=	${LOADADDRESS}			# backwards compatibility
    184 LINKTEXT?=	${TEXTADDR:C/.+/-Ttext &/}
    185 LINKDATA?=	${DATAADDR:C/.+/-Tdata &/}
    186 ENTRYPOINT?=	start
    187 LINKENTRY?=	${ENTRYPOINT:C/.+/-e &/}
    188 LINKFLAGS?=	${LINKFORMAT} ${LINKTEXT} ${LINKDATA} ${LINKENTRY} \
    189 		${EXTRA_LINKFLAGS}
    190 
    191 LINKFLAGS_DEBUG?=	-X
    192 SYSTEM_LD_TAIL_DEBUG?=; \
    193 		echo mv -f $@ $@.gdb; mv -f $@ $@.gdb; \
    194 		echo ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb; \
    195 		${STRIP} ${STRIPFLAGS} -o $@ $@.gdb
    196 LINKFLAGS_NORMAL?=	-S
    197 STRIPFLAGS?=	-g
    198 
    199 DEBUG?=
    200 .if !empty(DEBUG:M-g*)
    201 SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_DEBUG}
    202 LINKFLAGS+=	${LINKFLAGS_DEBUG}
    203 EXTRA_KERNELS+= ${KERNELS:@.KERNEL.@${.KERNEL.}.gdb@}
    204 .elifndef PROF
    205 LINKFLAGS+=	${LINKFLAGS_NORMAL}
    206 .endif
    207 
    208 SYSTEM_LD_HEAD+=${SYSTEM_LD_HEAD_EXTRA}
    209 SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_EXTRA}
    210 
    211 ##
    212 ## (6) port independent targets and dependencies: assym.h, vers.o
    213 ##
    214 .if !target(assym.h)
    215 assym.h: ${GENASSYM_CONF} ${GENASSYM_EXTRAS}
    216 	${_MKTARGET_CREATE}
    217 	cat ${GENASSYM_CONF} ${GENASSYM_EXTRAS} | \
    218 	    ${GENASSYM} -- ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} \
    219 	    > assym.h.tmp && \
    220 	mv -f assym.h.tmp assym.h
    221 ${MD_SFILES:C/\.[Ss]/.o/} ${SFILES:C/\.[Ss]/.o/}: assym.h
    222 .endif
    223 
    224 .if !target(vers.o)
    225 newvers: vers.o
    226 vers.o: ${SYSTEM_DEP} ${SYSTEM_SWAP_DEP} $S/conf/newvers.sh $S/conf/osrelease.sh
    227 	${_MKMSG_CREATE} vers.c
    228 	${HOST_SH} $S/conf/newvers.sh
    229 	${_MKTARGET_COMPILE}
    230 	${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c vers.c
    231 .endif
    232 
    233 .if !target(config_time.h)
    234 EXTRA_CLEAN+= config_time.h
    235 config_time.h: Makefile
    236 	${_MKTARGET_CREATE}
    237 	cp config_time.src config_time.h
    238 .endif
    239 
    240 .if defined(MEMORY_DISK_IMAGE)
    241 md_root_image.h: ${MEMORY_DISK_IMAGE}
    242 	${_MKTARGET_CREATE}
    243 	${TOOL_HEXDUMP} -v -e '"\t" 8/1 "0x%02x, " "\n"' ${.ALLSRC} > ${.TARGET}
    244 
    245 # XXX This is only needed when building md_root.o
    246 CPPFLAGS+=	-DMEMORY_DISK_IMAGE
    247 md_root.o: md_root_image.h
    248 .endif
    249 
    250 # depend on MEMORY_DISK_IMAGE configuration
    251 md_root.o: Makefile
    252 
    253 # depend on root or device configuration
    254 autoconf.o conf.o: Makefile
    255 
    256 # depend on network or filesystem configuration
    257 uipc_proto.o vfs_conf.o: Makefile
    258 
    259 # depend on maxusers and CPU configuration
    260 assym.h machdep.o: Makefile
    261 
    262 ##
    263 ## (7) misc targets: install, clean(dir), depend(all), lint, links, tags,
    264 ##                   cscope, mkid
    265 ##
    266 ## Any ports that have other stuff to be cleaned up should fill in
    267 ## EXTRA_CLEAN.  Some ports may want different settings for
    268 ## KERNLINTFLAGS, MKDEP_CFLAGS, or MKDEP_AFLAGS.
    269 ##
    270 .if !target(__CLEANKERNEL)
    271 __CLEANKERNEL: .USE
    272 	${_MKMSG} "${.TARGET}ing the kernel objects"
    273 	rm -f ${KERNELS} eddep tags *.[io] *.ln [a-z]*.s vers.c \
    274 	    [Ee]rrs linterrs makelinks assym.h.tmp assym.h \
    275 	    ${EXTRA_KERNELS} ${EXTRA_CLEAN}
    276 .endif
    277 
    278 .if !target(kernelnames)
    279 kernelnames:
    280 	@echo "${KERNELS} ${EXTRA_KERNELS}"
    281 .endif
    282 
    283 .if !target(__CLEANDEPEND)
    284 __CLEANDEPEND: .USE
    285 	rm -f .depend
    286 .endif
    287 
    288 # do not !target these, the kern and compat Makefiles augment them
    289 cleandir distclean: __CLEANKERNEL __CLEANDEPEND
    290 clean: __CLEANKERNEL
    291 depend: .depend
    292 dependall: depend all
    293 
    294 .if !target(.depend)
    295 SRCS?=		${MD_SFILES} ${MD_CFILES} ${MI_CFILES} ${CFILES} ${SFILES}
    296 MKDEP_AFLAGS?=	${AFLAGS}
    297 MKDEP_CFLAGS?=	${CFLAGS}
    298 # We have to assume that we'll eventually run out of command line.
    299 # We already hit that on non-NetBSD hosts.
    300 _SFILES=${MD_SFILES} ${SFILES}
    301 _CFILES=${MD_CFILES} ${MI_CFILES} ${CFILES}
    302 _XargsMKDEP=${MKDEP:M*=*} xargs -t ${MKDEP:N*=*}
    303 
    304 # This dance is necessary to avoid long command lines.
    305 ${SRCS:S,^,list-,}:
    306 	@echo ${.TARGET:S,^list-,,}
    307 
    308 _sfiles: ${_SFILES:S,^,list-,}
    309 _cfiles: ${_CFILES:S,^,list-,}
    310 
    311 .depend: ${SRCS} assym.h config_time.h
    312 	${_MKTARGET_CREATE}
    313 	@> $@
    314 	@${.MAKE} -f ${MAKEFILE} _sfiles | ${_XargsMKDEP} -a -- ${MKDEP_AFLAGS} ${CPPFLAGS}
    315 	@${.MAKE} -f ${MAKEFILE} _cfiles | ${_XargsMKDEP} -a -- ${MKDEP_CFLAGS} ${CPPFLAGS}
    316 	cat ${GENASSYM_CONF} ${GENASSYM_EXTRAS} | \
    317 	    ${GENASSYM} -- ${MKDEP} -f assym.dep -- \
    318 	    ${CFLAGS} ${CPPFLAGS}
    319 	@sed -e 's/^.*\.o:.*\.c /assym.h: /' < assym.dep >> .depend
    320 	@rm -f assym.dep
    321 .endif
    322 
    323 .if !target(lint)
    324 ALLSFILES?=	${MD_SFILES} ${SFILES}
    325 LINTSTUBS?=	${ALLSFILES:T:R:C/^.*$/LintStub_&.c/g}
    326 KERNLINTFLAGS?=	-bcehnxzFS
    327 NORMAL_LN?=	${LINT} ${KERNLINTFLAGS} ${CPPFLAGS:M-[IDU]*} -i $<
    328 
    329 _lsrc=${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES}
    330 LOBJS?= ${_lsrc:T:S/.c$/.ln/g} ${LIBKERNLN} ${SYSLIBCOMPATLN}
    331 
    332 .for _sfile in ${ALLSFILES}
    333 LintStub_${_sfile:T:R}.c: ${_sfile} assym.h
    334 	${_MKTARGET_COMPILE}
    335 	${CC} -E -C ${AFLAGS} ${CPPFLAGS} ${_sfile} | \
    336 	      awk -f $S/kern/genlintstub.awk >${.TARGET}
    337 .endfor
    338 
    339 .for _cfile in ${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES}
    340 ${_cfile:T:R}.ln: ${_cfile}
    341 	${_MKTARGET_COMPILE}
    342 	${NORMAL_LN}
    343 .endfor
    344 
    345 lint: ${LOBJS}
    346 	${LINT} ${KERNLINTFLAGS} ${CPPFLAGS:M-[IDU]*} ${LOBJS}
    347 .endif
    348 
    349 .if !target(install)
    350 # The install target can be redefined by putting a
    351 # install-kernel-${MACHINE_NAME} target into /etc/mk.conf
    352 MACHINE_NAME!=  uname -n
    353 install: install-kernel-${MACHINE_NAME}
    354 .if !target(install-kernel-${MACHINE_NAME})
    355 install-kernel-${MACHINE_NAME}:
    356 	rm -f ${DESTDIR}/onetbsd
    357 	ln ${DESTDIR}/netbsd ${DESTDIR}/onetbsd
    358 	cp netbsd ${DESTDIR}/nnetbsd
    359 	mv ${DESTDIR}/nnetbsd ${DESTDIR}/netbsd
    360 .endif
    361 .endif
    362 
    363 .if !target(tags)
    364 tags:
    365 	@echo "see $S/kern/Makefile for tags"
    366 .endif
    367 
    368 EXTRA_CLEAN+= cscope.out cscope.tmp
    369 .if !target(cscope.out)
    370 cscope.out: Makefile depend
    371 	${_MKTARGET_CREATE}
    372 	@sed 's/[^:]*://;s/^ *//;s/ *\\ *$$//;' lib/kern/.depend | \
    373 	tr -s ' ' '\n' | sed 's|^\([^.\\]\)|lib/kern/\1|;s|^../../||;' > \
    374 	cscope.tmp
    375 	@sed 's/[^:]*://;s/^ *//;s/ *\\ *$$//;' lib/compat/.depend | \
    376 	tr -s ' ' '\n' | sed 's|^\([^.\\]\)|lib/compat/\1|;s|^../../||;' >> \
    377 	cscope.tmp
    378 	@echo ${SRCS} | cat - cscope.tmp | tr -s ' ' '\n' | sort -u | \
    379 	${CSCOPE} -k -i - -b `echo ${INCLUDES} | sed s/-nostdinc//`
    380 #	cscope doesn't write cscope.out if it's uptodate, so ensure
    381 #	make doesn't keep calling cscope when not needed.
    382 	@rm -f cscope.tmp; touch cscope.out
    383 .endif
    384 
    385 .if !target(cscope)
    386 cscope: cscope.out
    387 	@${CSCOPE} -d
    388 .endif
    389 
    390 EXTRA_CLEAN+= ID
    391 .if !target(mkid)
    392 .PHONY: mkid
    393 mkid: ID
    394 
    395 ID: Makefile depend
    396 	${_MKTARGET_CREATE}
    397 	@${MKID} `sed 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' lib/kern/.depend \
    398 	lib/compat/.depend | tr ' ' '\n' | sed "s|^../../||" | sort -u` \
    399 	`sed 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' .depend | tr ' ' '\n' \
    400 	| sort -u`
    401 
    402 .endif
    403 
    404 .include "${S}/gdbscripts/Makefile.inc"
    405 
    406 EXTRA_CLEAN+= .gdbinit
    407 .gdbinit: Makefile ${S}/gdbscripts/Makefile.inc
    408 	${_MKTARGET_CREATE}
    409 	rm -f .gdbinit
    410 .for __gdbinit in ${SYS_GDBINIT}
    411 	echo "source ${S}/gdbscripts/${__gdbinit}" >> .gdbinit
    412 .endfor
    413 .if defined(GDBINIT) && !empty(GDBINIT)
    414 .for __gdbinit in ${GDBINIT}
    415 	echo "source ${__gdbinit}" >> .gdbinit
    416 .endfor
    417 .endif
    418 
    419 CFLAGS+=	${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}}
    420 CPPFLAGS+=	${CPPFLAGS.${.IMPSRC:T}}
    421 CWARNFLAGS+=	${CWARNFLAGS.${.IMPSRC:T}}
    422 
    423 ##
    424 ## the end
    425 ##
    426