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Makefile.kern.inc revision 1.52 
      1 #	$NetBSD: Makefile.kern.inc,v 1.52 2004/04/24 22:07:15 pk 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 # Disable unitialized warnings with 2.95 - it gets it wrong way too often
     72 _ISGCC295!=		${CC} --version 2>/dev/null | grep 2.95 2>/dev/null || echo 0
     73 .if ${_ISGCC295}
     74 CWARNFLAGS+=	-Wno-uninitialized
     75 .endif
     76 
     77 CFLAGS+=	${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}}
     78 CFLAGS+=	${CPPFLAGS.${.IMPSRC:T}}
     79 CFLAGS+=	${CPUFLAGS} -ffreestanding -fno-zero-initialized-in-bss
     80 CFLAGS+=	${CPUFLAGS} ${DEBUG} ${COPTS} ${CWARNFLAGS}
     81 AFLAGS+=	${CPUFLAGS} -D_LOCORE
     82 
     83 # Use the per-source COPTS variables to add -g to just those
     84 # files that match the shell patterns given in ${DEBUGLIST}
     85 #
     86 .for i in ${DEBUGLIST}
     87 .for j in ${CFILES:T:M$i.c}
     88 COPTS.${j}+=-g
     89 .endfor
     90 .endfor
     91 
     92 # compile rules: rules are named ${TYPE}_${SUFFIX} where TYPE is NORMAL or
     93 # NOPROF and SUFFIX is the file suffix, capitalized (e.g. C for a .c file).
     94 NORMAL_C?=	@${_MKSHMSG} "compile  ${.CURDIR:T}/${.TARGET}"; \
     95 		${_MKSHECHO}\
     96 		${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $<; \
     97 		${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $<
     98 NOPROF_C?=	@${_MKSHMSG} "compile  ${.CURDIR:T}/${.TARGET}"; \
     99 		${_MKSHECHO}\
    100 		${CC} ${CFLAGS} ${CPPFLAGS} -c $<; \
    101 		${CC} ${CFLAGS} ${CPPFLAGS} -c $<
    102 NORMAL_S?=	@${_MKSHMSG} "compile  ${.CURDIR:T}/${.TARGET}"; \
    103 		${_MKSHECHO}\
    104 		${CC} ${AFLAGS} ${CPPFLAGS} -c $<; \
    105 		${CC} ${AFLAGS} ${CPPFLAGS} -c $<
    106 
    107 ##
    108 ## (3) libkern and compat
    109 ##
    110 ## Set KERN_AS in the port Makefile to "obj" or "library".  The
    111 ## default is "library", as documented in $S/lib/libkern/Makefile.inc.
    112 ##
    113 
    114 ### find out what to use for libkern
    115 .include "$S/lib/libkern/Makefile.inc"
    116 .ifndef PROF
    117 LIBKERN?=	${KERNLIB}
    118 .else
    119 LIBKERN?=	${KERNLIB_PROF}
    120 .endif
    121 
    122 LIBKERNLN?=	${KERNLIBLN}
    123 
    124 ### find out what to use for libcompat
    125 .include "$S/compat/common/Makefile.inc"
    126 .ifndef PROF
    127 LIBCOMPAT?=	${COMPATLIB}
    128 .else
    129 LIBCOMPAT?=	${COMPATLIB_PROF}
    130 .endif
    131 
    132 LIBCOMPATLN?=	${COMPATLIBLN}
    133 
    134 ##
    135 ## (4) local objects, compile rules, and dependencies
    136 ##
    137 ## Each port should have a corresponding section with settings for
    138 ## MD_CFILES, MD_SFILES, and MD_OBJS, along with build rules for same.
    139 ##
    140 MI_CFILES=devsw.c ioconf.c param.c
    141 # the need for a MI_SFILES variable is dubitable at best
    142 MI_OBJS=${MI_CFILES:S/.c/.o/}
    143 
    144 param.c: $S/conf/param.c
    145 	${_MKTARGET_CREATE}
    146 	rm -f param.c
    147 	cp $S/conf/param.c .
    148 
    149 param.o: Makefile
    150 
    151 .for _cfile in ${MI_CFILES}
    152 ${_cfile:T:R}.o: ${_cfile}
    153 	${NORMAL_C}
    154 .endfor
    155 
    156 ##
    157 ## (5) link settings
    158 ##
    159 ## TEXTADDR (or LOADADDRESS), LINKFORMAT, and any EXTRA_LINKFLAGS must
    160 ## be set in the port's Makefile.  The port specific definitions for
    161 ## LINKFLAGS_NORMAL and LINKFLAGS_DEBUG will added to the LINKFLAGS
    162 ## depending on the value of DEBUG.
    163 ##
    164 # load lines for config "xxx" will be emitted as:
    165 # xxx: ${SYSTEM_DEP} swapxxx.o
    166 #	${SYSTEM_LD_HEAD}
    167 #	${SYSTEM_LD} swapxxx.o
    168 #	${SYSTEM_LD_TAIL}
    169 SYSTEM_OBJ?=	${MD_OBJS} ${MI_OBJS} ${OBJS} ${LIBCOMPAT} ${LIBKERN}
    170 SYSTEM_DEP?=	Makefile ${SYSTEM_OBJ} .gdbinit
    171 SYSTEM_LD_HEAD?=@rm -f $@
    172 SYSTEM_LD?=	@${_MKSHMSG} "   link  ${.CURDIR:T}/${.TARGET}"; \
    173 		${_MKSHECHO}\
    174 		${LD} ${LINKFLAGS} -o $@ '$${SYSTEM_OBJ}' '$${EXTRA_OBJ}' vers.o; \
    175 		${LD} ${LINKFLAGS} -o $@ ${SYSTEM_OBJ} ${EXTRA_OBJ} vers.o
    176 SYSTEM_LD_TAIL?=@${SIZE} $@; chmod 755 $@
    177 
    178 TEXTADDR?=	${LOADADDRESS}			# backwards compatibility
    179 LINKTEXT?=	${TEXTADDR:C/.+/-Ttext &/}
    180 LINKDATA?=	${DATAADDR:C/.+/-Tdata &/}
    181 ENTRYPOINT?=	start
    182 LINKENTRY?=	${ENTRYPOINT:C/.+/-e &/}
    183 LINKFLAGS?=	${LINKFORMAT} ${LINKTEXT} ${LINKDATA} ${LINKENTRY} \
    184 		${EXTRA_LINKFLAGS}
    185 
    186 LINKFLAGS_DEBUG?=	-X
    187 SYSTEM_LD_TAIL_DEBUG?=; \
    188 		echo mv -f $@ $@.gdb; mv -f $@ $@.gdb; \
    189 		echo ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb; \
    190 		${STRIP} ${STRIPFLAGS} -o $@ $@.gdb
    191 LINKFLAGS_NORMAL?=	-S
    192 STRIPFLAGS?=	-g
    193 
    194 DEBUG?=
    195 .if ${DEBUG} == "-g" || ${DEBUG} == "-gstabs" || ${DEBUG} == "-gstabs+"
    196 SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_DEBUG}
    197 LINKFLAGS+=	${LINKFLAGS_DEBUG}
    198 EXTRA_KERNELS+= ${KERNELS:@.KERNEL.@${.KERNEL.}.gdb@}
    199 .elifndef PROF
    200 LINKFLAGS+=	${LINKFLAGS_NORMAL}
    201 .endif
    202 
    203 SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_EXTRA}
    204 
    205 ##
    206 ## (6) port independent targets and dependencies: assym.h, vers.o
    207 ##
    208 .if !target(assym.h)
    209 assym.h: $S/kern/genassym.sh ${GENASSYM} ${GENASSYM_EXTRAS}
    210 	${_MKTARGET_CREATE}
    211 	cat ${GENASSYM} ${GENASSYM_EXTRAS} | \
    212 	    ${HOST_SH} $S/kern/genassym.sh ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} \
    213 	    > assym.h.tmp && \
    214 	mv -f assym.h.tmp assym.h
    215 ${MD_SFILES:C/\.[Ss]/.o/} ${SFILES:C/\.[Ss]/.o/}: assym.h
    216 .endif
    217 
    218 .if !target(vers.o)
    219 newvers: vers.o
    220 vers.o: ${SYSTEM_DEP} ${SYSTEM_SWAP_DEP} $S/conf/newvers.sh $S/conf/osrelease.sh
    221 	${_MKMSG_CREATE} vers.c
    222 	${HOST_SH} $S/conf/newvers.sh
    223 	${_MKTARGET_COMPILE}
    224 	${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c vers.c
    225 .endif
    226 
    227 .if !target(config_time.h)
    228 EXTRA_CLEAN+= config_time.h
    229 config_time.h: Makefile
    230 	${_MKTARGET_CREATE}
    231 	cp config_time.src config_time.h
    232 .endif
    233 
    234 .if defined(MEMORY_DISK_IMAGE)
    235 md_root_image.h: ${MEMORY_DISK_IMAGE}
    236 	${_MKTARGET_CREATE}
    237 	${TOOL_HEXDUMP} -v -e '"\t" 8/1 "0x%02x, " "\n"' ${.ALLSRC} > ${.TARGET}
    238 
    239 # XXX This is only needed when building md_root.o
    240 CPPFLAGS+=	-DMEMORY_DISK_IMAGE
    241 md_root.o: md_root_image.h
    242 .endif
    243 
    244 # depend on MEMORY_DISK_IMAGE configuration
    245 md_root.o: Makefile
    246 
    247 # depend on root or device configuration
    248 autoconf.o conf.o: Makefile
    249 
    250 # depend on network or filesystem configuration
    251 uipc_proto.o vfs_conf.o: Makefile
    252 
    253 # depend on maxusers and CPU configuration
    254 assym.h machdep.o: Makefile
    255 
    256 ##
    257 ## (7) misc targets: install, clean(dir), depend(all), lint, links, tags,
    258 ##                   cscope, mkid
    259 ##
    260 ## Any ports that have other stuff to be cleaned up should fill in
    261 ## EXTRA_CLEAN.  Some ports may want different settings for
    262 ## KERNLINTFLAGS, MKDEP_CFLAGS, or MKDEP_AFLAGS.
    263 ##
    264 .if !target(__CLEANKERNEL)
    265 __CLEANKERNEL: .USE
    266 	${_MKMSG} "${.TARGET}ing the kernel objects"
    267 	rm -f ${KERNELS} eddep tags *.[io] *.ln [a-z]*.s vers.c \
    268 	    [Ee]rrs linterrs makelinks assym.h.tmp assym.h \
    269 	    ${EXTRA_KERNELS} ${EXTRA_CLEAN}
    270 .endif
    271 
    272 .if !target(kernelnames)
    273 kernelnames:
    274 	@echo "${KERNELS} ${EXTRA_KERNELS}"
    275 .endif
    276 
    277 .if !target(__CLEANDEPEND)
    278 __CLEANDEPEND: .USE
    279 	rm -f .depend
    280 .endif
    281 
    282 # do not !target these, the kern and compat Makefiles augment them
    283 cleandir distclean: __CLEANKERNEL __CLEANDEPEND
    284 clean: __CLEANKERNEL
    285 depend: .depend
    286 dependall: depend all
    287 
    288 .if !target(.depend)
    289 SRCS?=		${MD_SFILES} ${MD_CFILES} ${MI_CFILES} ${CFILES} ${SFILES}
    290 MKDEP_AFLAGS?=	${AFLAGS}
    291 MKDEP_CFLAGS?=	${CFLAGS}
    292 .depend: ${SRCS} assym.h config_time.h
    293 	${_MKTARGET_CREATE}
    294 	${MKDEP} -- ${MKDEP_AFLAGS} ${CPPFLAGS} ${MD_SFILES} ${SFILES}
    295 	${MKDEP} -a -- ${MKDEP_CFLAGS} ${CPPFLAGS} ${MD_CFILES} ${MI_CFILES} \
    296 	    ${CFILES}
    297 	cat ${GENASSYM} ${GENASSYM_EXTRAS} | \
    298 	    ${HOST_SH} $S/kern/genassym.sh ${MKDEP} -f assym.dep -- \
    299 	    ${CFLAGS} ${CPPFLAGS}
    300 	@sed -e 's/.*\.o:.*\.c/assym.h:/' < assym.dep >> .depend
    301 	@rm -f assym.dep
    302 .endif
    303 
    304 .if !target(lint)
    305 ALLSFILES?=	${MD_SFILES} ${SFILES}
    306 LINTSTUBS?=	${ALLSFILES:T:R:C/^.*$/LintStub_&.c/g}
    307 KERNLINTFLAGS?=	-bcehnxzFS
    308 NORMAL_LN?=	${LINT} ${KERNLINTFLAGS} ${CPPFLAGS:M-[IDU]*} -i $<
    309 
    310 _lsrc=${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES}
    311 LOBJS?= ${_lsrc:T:S/.c$/.ln/g} ${LIBKERNLN} ${LIBCOMPATLN}
    312 
    313 .for _sfile in ${ALLSFILES}
    314 LintStub_${_sfile:T:R}.c: ${_sfile} assym.h
    315 	${_MKTARGET_COMPILE}
    316 	${CC} -E -C ${AFLAGS} ${CPPFLAGS} ${_sfile} | \
    317 	      awk -f $S/kern/genlintstub.awk >${.TARGET}
    318 .endfor
    319 
    320 .for _cfile in ${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES}
    321 ${_cfile:T:R}.ln: ${_cfile}
    322 	${_MKTARGET_COMPILE}
    323 	${NORMAL_LN}
    324 .endfor
    325 
    326 lint: ${LOBJS}
    327 	${LINT} ${KERNLINTFLAGS} ${CPPFLAGS:M-[IDU]*} ${LOBJS}
    328 .endif
    329 
    330 .if !target(install)
    331 # The install target can be redefined by putting a
    332 # install-kernel-${MACHINE_NAME} target into /etc/mk.conf
    333 MACHINE_NAME!=  uname -n
    334 install: install-kernel-${MACHINE_NAME}
    335 .if !target(install-kernel-${MACHINE_NAME})
    336 install-kernel-${MACHINE_NAME}:
    337 	rm -f ${DESTDIR}/onetbsd
    338 	ln ${DESTDIR}/netbsd ${DESTDIR}/onetbsd
    339 	cp netbsd ${DESTDIR}/nnetbsd
    340 	mv ${DESTDIR}/nnetbsd ${DESTDIR}/netbsd
    341 .endif
    342 .endif
    343 
    344 .if !target(tags)
    345 tags:
    346 	@echo "see $S/kern/Makefile for tags"
    347 .endif
    348 
    349 EXTRA_CLEAN+= cscope.out
    350 .if !target(cscope.out)
    351 cscope.out: Makefile depend
    352 	${_MKTARGET_CREATE}
    353 	@echo ${SRCS} `sed 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' \
    354 	lib/kern/.depend lib/compat/.depend | tr ' ' '\n' | \
    355 	sed "s|^../../||" | sort -u` \
    356 	| ${CSCOPE} -k -i - -b `echo ${INCLUDES} | sed s/-nostdinc//`
    357 #	cscope doesn't write cscope.out if it's uptodate, so ensure
    358 #	make doesn't keep calling cscope when not needed.
    359 	@touch cscope.out
    360 .endif
    361 
    362 .if !target(cscope)
    363 cscope: cscope.out
    364 	@${CSCOPE} -d
    365 .endif
    366 
    367 EXTRA_CLEAN+= ID
    368 .if !target(mkid)
    369 .PHONY: mkid
    370 mkid: ID
    371 
    372 ID: Makefile depend
    373 	${_MKTARGET_CREATE}
    374 	@${MKID} `sed 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' lib/kern/.depend \
    375 	lib/compat/.depend | tr ' ' '\n' | sed "s|^../../||" | sort -u` \
    376 	`sed 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' .depend | tr ' ' '\n' \
    377 	| sort -u`
    378 
    379 .endif
    380 
    381 .include "${S}/gdbscripts/Makefile.inc"
    382 
    383 EXTRA_CLEAN+= .gdbinit
    384 .gdbinit: Makefile ${S}/gdbscripts/Makefile.inc
    385 	${_MKTARGET_CREATE}
    386 	rm -f .gdbinit
    387 .for __gdbinit in ${SYS_GDBINIT}
    388 	echo "source ${S}/gdbscripts/${__gdbinit}" >> .gdbinit
    389 .endfor
    390 .if defined(GDBINIT) && !empty(GDBINIT)
    391 .for __gdbinit in ${GDBINIT}
    392 	echo "source ${__gdbinit}" >> .gdbinit
    393 .endfor
    394 .endif
    395 
    396 ##
    397 ## the end
    398 ##
    399