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Makefile.kern.inc revision 1.51.2.1 
      1 #	$NetBSD: Makefile.kern.inc,v 1.51.2.1 2004/04/29 04:21:26 jmc 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 .MAKEOVERRIDES+=USETOOLS	# make sure proper value is propagated
     33 
     34 _MKMSG?=		@\#
     35 _MKSHMSG?=		echo
     36 _MKSHECHO?=		echo
     37 _MKMSG_CREATE?=		:
     38 _MKTARGET_COMPILE?=	:
     39 _MKTARGET_CREATE?=	:
     40 
     41 ##
     42 ## (1) port independent source tree identification
     43 ##
     44 # source tree is located via $S relative to the compilation directory
     45 .ifndef S
     46 S!=	cd ../../../..; pwd
     47 .endif
     48 
     49 ##
     50 ## (2) compile settings
     51 ##
     52 ## CPPFLAGS, CFLAGS, and AFLAGS must be set in the port's Makefile
     53 ##
     54 INCLUDES?=	-I. ${EXTRA_INCLUDES} -I$S/arch -I$S -nostdinc
     55 CPPFLAGS+=	${INCLUDES} ${IDENT} ${PARAM} -D_KERNEL -D_KERNEL_OPT
     56 DEFCOPTS?=	-O2
     57 COPTS?=		${DEFCOPTS}
     58 DBG=		# might contain unwanted -Ofoo
     59 DEFWARNINGS?=	yes
     60 .if (${DEFWARNINGS} == "yes")
     61 .if !defined(NOGCCERROR)
     62 CWARNFLAGS+=	-Werror
     63 .endif
     64 CWARNFLAGS+=	-Wall -Wno-main -Wno-format-zero-length -Wpointer-arith
     65 CWARNFLAGS+=	-Wmissing-prototypes -Wstrict-prototypes
     66 # Add -Wno-sign-compare.  -Wsign-compare is included in -Wall as of GCC 3.3,
     67 # but our sources aren't up for it yet.
     68 CWARNFLAGS+=	-Wno-sign-compare
     69 .endif
     70 
     71 CFLAGS+=	${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}}
     72 CFLAGS+=	${CPPFLAGS.${.IMPSRC:T}}
     73 CFLAGS+=	${CPUFLAGS} -ffreestanding
     74 CFLAGS+=	${CPUFLAGS} ${DEBUG} ${COPTS} ${CWARNFLAGS}
     75 AFLAGS+=	${CPUFLAGS} -D_LOCORE
     76 
     77 # Disable unitialized warnings with 2.95 - it gets it wrong way too often
     78 _ISGCC295!=		${CC} --version 2>/dev/null | grep 2.95 2>/dev/null || echo 0
     79 .if ${_ISGCC295}
     80 CWARNFLAGS+=	-Wno-uninitialized
     81 .else
     82 CFLAGS+=	-fno-zero-initialized-in-bss
     83 .endif
     84 
     85 # Use the per-source COPTS variables to add -g to just those
     86 # files that match the shell patterns given in ${DEBUGLIST}
     87 #
     88 .for i in ${DEBUGLIST}
     89 .for j in ${CFILES:T:M$i.c}
     90 COPTS.${j}+=-g
     91 .endfor
     92 .endfor
     93 
     94 # compile rules: rules are named ${TYPE}_${SUFFIX} where TYPE is NORMAL or
     95 # NOPROF and SUFFIX is the file suffix, capitalized (e.g. C for a .c file).
     96 NORMAL_C?=	@${_MKSHMSG} "compile  ${.CURDIR:T}/${.TARGET}"; \
     97 		${_MKSHECHO}\
     98 		${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $<; \
     99 		${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $<
    100 NOPROF_C?=	@${_MKSHMSG} "compile  ${.CURDIR:T}/${.TARGET}"; \
    101 		${_MKSHECHO}\
    102 		${CC} ${CFLAGS} ${CPPFLAGS} -c $<; \
    103 		${CC} ${CFLAGS} ${CPPFLAGS} -c $<
    104 NORMAL_S?=	@${_MKSHMSG} "compile  ${.CURDIR:T}/${.TARGET}"; \
    105 		${_MKSHECHO}\
    106 		${CC} ${AFLAGS} ${CPPFLAGS} -c $<; \
    107 		${CC} ${AFLAGS} ${CPPFLAGS} -c $<
    108 
    109 ##
    110 ## (3) libkern and compat
    111 ##
    112 ## Set KERN_AS in the port Makefile to "obj" or "library".  The
    113 ## default is "library", as documented in $S/lib/libkern/Makefile.inc.
    114 ##
    115 
    116 ### find out what to use for libkern
    117 .include "$S/lib/libkern/Makefile.inc"
    118 .ifndef PROF
    119 LIBKERN?=	${KERNLIB}
    120 .else
    121 LIBKERN?=	${KERNLIB_PROF}
    122 .endif
    123 
    124 LIBKERNLN?=	${KERNLIBLN}
    125 
    126 ### find out what to use for libcompat
    127 .include "$S/compat/common/Makefile.inc"
    128 .ifndef PROF
    129 LIBCOMPAT?=	${COMPATLIB}
    130 .else
    131 LIBCOMPAT?=	${COMPATLIB_PROF}
    132 .endif
    133 
    134 LIBCOMPATLN?=	${COMPATLIBLN}
    135 
    136 ##
    137 ## (4) local objects, compile rules, and dependencies
    138 ##
    139 ## Each port should have a corresponding section with settings for
    140 ## MD_CFILES, MD_SFILES, and MD_OBJS, along with build rules for same.
    141 ##
    142 MI_CFILES=devsw.c ioconf.c param.c
    143 # the need for a MI_SFILES variable is dubitable at best
    144 MI_OBJS=${MI_CFILES:S/.c/.o/}
    145 
    146 param.c: $S/conf/param.c
    147 	${_MKTARGET_CREATE}
    148 	rm -f param.c
    149 	cp $S/conf/param.c .
    150 
    151 param.o: Makefile
    152 
    153 .for _cfile in ${MI_CFILES}
    154 ${_cfile:T:R}.o: ${_cfile}
    155 	${NORMAL_C}
    156 .endfor
    157 
    158 ##
    159 ## (5) link settings
    160 ##
    161 ## TEXTADDR (or LOADADDRESS), LINKFORMAT, and any EXTRA_LINKFLAGS must
    162 ## be set in the port's Makefile.  The port specific definitions for
    163 ## LINKFLAGS_NORMAL and LINKFLAGS_DEBUG will added to the LINKFLAGS
    164 ## depending on the value of DEBUG.
    165 ##
    166 # load lines for config "xxx" will be emitted as:
    167 # xxx: ${SYSTEM_DEP} swapxxx.o
    168 #	${SYSTEM_LD_HEAD}
    169 #	${SYSTEM_LD} swapxxx.o
    170 #	${SYSTEM_LD_TAIL}
    171 SYSTEM_OBJ?=	${MD_OBJS} ${MI_OBJS} ${OBJS} ${LIBCOMPAT} ${LIBKERN}
    172 SYSTEM_DEP?=	Makefile ${SYSTEM_OBJ} .gdbinit
    173 SYSTEM_LD_HEAD?=@rm -f $@
    174 SYSTEM_LD?=	@${_MKSHMSG} "   link  ${.CURDIR:T}/${.TARGET}"; \
    175 		${_MKSHECHO}\
    176 		${LD} ${LINKFLAGS} -o $@ '$${SYSTEM_OBJ}' '$${EXTRA_OBJ}' vers.o; \
    177 		${LD} ${LINKFLAGS} -o $@ ${SYSTEM_OBJ} ${EXTRA_OBJ} vers.o
    178 SYSTEM_LD_TAIL?=@${SIZE} $@; chmod 755 $@
    179 
    180 TEXTADDR?=	${LOADADDRESS}			# backwards compatibility
    181 LINKTEXT?=	${TEXTADDR:C/.+/-Ttext &/}
    182 LINKDATA?=	${DATAADDR:C/.+/-Tdata &/}
    183 ENTRYPOINT?=	start
    184 LINKENTRY?=	${ENTRYPOINT:C/.+/-e &/}
    185 LINKFLAGS?=	${LINKFORMAT} ${LINKTEXT} ${LINKDATA} ${LINKENTRY} \
    186 		${EXTRA_LINKFLAGS}
    187 
    188 LINKFLAGS_DEBUG?=	-X
    189 SYSTEM_LD_TAIL_DEBUG?=; \
    190 		echo mv -f $@ $@.gdb; mv -f $@ $@.gdb; \
    191 		echo ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb; \
    192 		${STRIP} ${STRIPFLAGS} -o $@ $@.gdb
    193 LINKFLAGS_NORMAL?=	-S
    194 STRIPFLAGS?=	-g
    195 
    196 DEBUG?=
    197 .if ${DEBUG} == "-g" || ${DEBUG} == "-gstabs" || ${DEBUG} == "-gstabs+"
    198 SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_DEBUG}
    199 LINKFLAGS+=	${LINKFLAGS_DEBUG}
    200 EXTRA_KERNELS+= ${KERNELS:@.KERNEL.@${.KERNEL.}.gdb@}
    201 .elifndef PROF
    202 LINKFLAGS+=	${LINKFLAGS_NORMAL}
    203 .endif
    204 
    205 SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_EXTRA}
    206 
    207 ##
    208 ## (6) port independent targets and dependencies: assym.h, vers.o
    209 ##
    210 .if !target(assym.h)
    211 assym.h: $S/kern/genassym.sh ${GENASSYM} ${GENASSYM_EXTRAS}
    212 	${_MKTARGET_CREATE}
    213 	cat ${GENASSYM} ${GENASSYM_EXTRAS} | \
    214 	    ${HOST_SH} $S/kern/genassym.sh ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} \
    215 	    > assym.h.tmp && \
    216 	mv -f assym.h.tmp assym.h
    217 ${MD_SFILES:C/\.[Ss]/.o/} ${SFILES:C/\.[Ss]/.o/}: assym.h
    218 .endif
    219 
    220 .if !target(vers.o)
    221 newvers: vers.o
    222 vers.o: ${SYSTEM_DEP} ${SYSTEM_SWAP_DEP} $S/conf/newvers.sh $S/conf/osrelease.sh
    223 	${_MKMSG_CREATE} vers.c
    224 	${HOST_SH} $S/conf/newvers.sh
    225 	${_MKTARGET_COMPILE}
    226 	${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c vers.c
    227 .endif
    228 
    229 .if !target(config_time.h)
    230 EXTRA_CLEAN+= config_time.h
    231 config_time.h: Makefile
    232 	${_MKTARGET_CREATE}
    233 	cp config_time.src config_time.h
    234 .endif
    235 
    236 .if defined(MEMORY_DISK_IMAGE)
    237 md_root_image.h: ${MEMORY_DISK_IMAGE}
    238 	${_MKTARGET_CREATE}
    239 	${TOOL_HEXDUMP} -v -e '"\t" 8/1 "0x%02x, " "\n"' ${.ALLSRC} > ${.TARGET}
    240 
    241 # XXX This is only needed when building md_root.o
    242 CPPFLAGS+=	-DMEMORY_DISK_IMAGE
    243 md_root.o: md_root_image.h
    244 .endif
    245 
    246 # depend on MEMORY_DISK_IMAGE configuration
    247 md_root.o: Makefile
    248 
    249 # depend on root or device configuration
    250 autoconf.o conf.o: Makefile
    251 
    252 # depend on network or filesystem configuration
    253 uipc_proto.o vfs_conf.o: Makefile
    254 
    255 # depend on maxusers and CPU configuration
    256 assym.h machdep.o: Makefile
    257 
    258 ##
    259 ## (7) misc targets: install, clean(dir), depend(all), lint, links, tags,
    260 ##                   cscope, mkid
    261 ##
    262 ## Any ports that have other stuff to be cleaned up should fill in
    263 ## EXTRA_CLEAN.  Some ports may want different settings for
    264 ## KERNLINTFLAGS, MKDEP_CFLAGS, or MKDEP_AFLAGS.
    265 ##
    266 .if !target(__CLEANKERNEL)
    267 __CLEANKERNEL: .USE
    268 	${_MKMSG} "${.TARGET}ing the kernel objects"
    269 	rm -f ${KERNELS} eddep tags *.[io] *.ln [a-z]*.s vers.c \
    270 	    [Ee]rrs linterrs makelinks assym.h.tmp assym.h \
    271 	    ${EXTRA_KERNELS} ${EXTRA_CLEAN}
    272 .endif
    273 
    274 .if !target(kernelnames)
    275 kernelnames:
    276 	@echo "${KERNELS} ${EXTRA_KERNELS}"
    277 .endif
    278 
    279 .if !target(__CLEANDEPEND)
    280 __CLEANDEPEND: .USE
    281 	rm -f .depend
    282 .endif
    283 
    284 # do not !target these, the kern and compat Makefiles augment them
    285 cleandir distclean: __CLEANKERNEL __CLEANDEPEND
    286 clean: __CLEANKERNEL
    287 depend: .depend
    288 dependall: depend all
    289 
    290 .if !target(.depend)
    291 SRCS?=		${MD_SFILES} ${MD_CFILES} ${MI_CFILES} ${CFILES} ${SFILES}
    292 MKDEP_AFLAGS?=	${AFLAGS}
    293 MKDEP_CFLAGS?=	${CFLAGS}
    294 .depend: ${SRCS} assym.h config_time.h
    295 	${_MKTARGET_CREATE}
    296 	${MKDEP} -- ${MKDEP_AFLAGS} ${CPPFLAGS} ${MD_SFILES} ${SFILES}
    297 	${MKDEP} -a -- ${MKDEP_CFLAGS} ${CPPFLAGS} ${MD_CFILES} ${MI_CFILES} \
    298 	    ${CFILES}
    299 	cat ${GENASSYM} ${GENASSYM_EXTRAS} | \
    300 	    ${HOST_SH} $S/kern/genassym.sh ${MKDEP} -f assym.dep -- \
    301 	    ${CFLAGS} ${CPPFLAGS}
    302 	@sed -e 's/.*\.o:.*\.c/assym.h:/' < assym.dep >> .depend
    303 	@rm -f assym.dep
    304 .endif
    305 
    306 .if !target(lint)
    307 ALLSFILES?=	${MD_SFILES} ${SFILES}
    308 LINTSTUBS?=	${ALLSFILES:T:R:C/^.*$/LintStub_&.c/g}
    309 KERNLINTFLAGS?=	-bcehnxzFS
    310 NORMAL_LN?=	${LINT} ${KERNLINTFLAGS} ${CPPFLAGS:M-[IDU]*} -i $<
    311 
    312 _lsrc=${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES}
    313 LOBJS?= ${_lsrc:T:S/.c$/.ln/g} ${LIBKERNLN} ${LIBCOMPATLN}
    314 
    315 .for _sfile in ${ALLSFILES}
    316 LintStub_${_sfile:T:R}.c: ${_sfile} assym.h
    317 	${_MKTARGET_COMPILE}
    318 	${CC} -E -C ${AFLAGS} ${CPPFLAGS} ${_sfile} | \
    319 	      awk -f $S/kern/genlintstub.awk >${.TARGET}
    320 .endfor
    321 
    322 .for _cfile in ${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES}
    323 ${_cfile:T:R}.ln: ${_cfile}
    324 	${_MKTARGET_COMPILE}
    325 	${NORMAL_LN}
    326 .endfor
    327 
    328 lint: ${LOBJS}
    329 	${LINT} ${KERNLINTFLAGS} ${CPPFLAGS:M-[IDU]*} ${LOBJS}
    330 .endif
    331 
    332 .if !target(install)
    333 # The install target can be redefined by putting a
    334 # install-kernel-${MACHINE_NAME} target into /etc/mk.conf
    335 MACHINE_NAME!=  uname -n
    336 install: install-kernel-${MACHINE_NAME}
    337 .if !target(install-kernel-${MACHINE_NAME})
    338 install-kernel-${MACHINE_NAME}:
    339 	rm -f ${DESTDIR}/onetbsd
    340 	ln ${DESTDIR}/netbsd ${DESTDIR}/onetbsd
    341 	cp netbsd ${DESTDIR}/nnetbsd
    342 	mv ${DESTDIR}/nnetbsd ${DESTDIR}/netbsd
    343 .endif
    344 .endif
    345 
    346 .if !target(tags)
    347 tags:
    348 	@echo "see $S/kern/Makefile for tags"
    349 .endif
    350 
    351 EXTRA_CLEAN+= cscope.out
    352 .if !target(cscope.out)
    353 cscope.out: Makefile depend
    354 	${_MKTARGET_CREATE}
    355 	@echo ${SRCS} `sed 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' \
    356 	lib/kern/.depend lib/compat/.depend | tr ' ' '\n' | \
    357 	sed "s|^../../||" | sort -u` \
    358 	| ${CSCOPE} -k -i - -b `echo ${INCLUDES} | sed s/-nostdinc//`
    359 #	cscope doesn't write cscope.out if it's uptodate, so ensure
    360 #	make doesn't keep calling cscope when not needed.
    361 	@touch cscope.out
    362 .endif
    363 
    364 .if !target(cscope)
    365 cscope: cscope.out
    366 	@${CSCOPE} -d
    367 .endif
    368 
    369 EXTRA_CLEAN+= ID
    370 .if !target(mkid)
    371 .PHONY: mkid
    372 mkid: ID
    373 
    374 ID: Makefile depend
    375 	${_MKTARGET_CREATE}
    376 	@${MKID} `sed 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' lib/kern/.depend \
    377 	lib/compat/.depend | tr ' ' '\n' | sed "s|^../../||" | sort -u` \
    378 	`sed 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' .depend | tr ' ' '\n' \
    379 	| sort -u`
    380 
    381 .endif
    382 
    383 .include "${S}/gdbscripts/Makefile.inc"
    384 
    385 EXTRA_CLEAN+= .gdbinit
    386 .gdbinit: Makefile ${S}/gdbscripts/Makefile.inc
    387 	${_MKTARGET_CREATE}
    388 	rm -f .gdbinit
    389 .for __gdbinit in ${SYS_GDBINIT}
    390 	echo "source ${S}/gdbscripts/${__gdbinit}" >> .gdbinit
    391 .endfor
    392 .if defined(GDBINIT) && !empty(GDBINIT)
    393 .for __gdbinit in ${GDBINIT}
    394 	echo "source ${__gdbinit}" >> .gdbinit
    395 .endfor
    396 .endif
    397 
    398 ##
    399 ## the end
    400 ##
    401