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Makefile.kern.inc revision 1.41 
      1 #	$NetBSD: Makefile.kern.inc,v 1.41 2003/10/29 21:29:27 mycroft 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 DBSYM?=		dbsym
     25 MKDEP?=		mkdep
     26 STRIP?=		strip
     27 OBJCOPY?=	objcopy
     28 OBJDUMP?=	objdump
     29 CSCOPE?=	cscope
     30 MKID?=		mkid
     31 .MAKEOVERRIDES+=USETOOLS	# make sure proper value is propagated
     32 
     33 ##
     34 ## (1) port independent source tree identification
     35 ##
     36 # source tree is located via $S relative to the compilation directory
     37 .ifndef S
     38 S!=	cd ../../../..; pwd
     39 .endif
     40 
     41 ##
     42 ## (2) compile settings
     43 ##
     44 ## CPPFLAGS, CFLAGS, and AFLAGS must be set in the port's Makefile
     45 ##
     46 INCLUDES?=	-I. ${EXTRA_INCLUDES} -I$S/arch -I$S -nostdinc
     47 CPPFLAGS+=	${INCLUDES} ${IDENT} ${PARAM} -D_KERNEL -D_KERNEL_OPT
     48 DEFCOPTS?=	-O2
     49 COPTS?=		${DEFCOPTS}
     50 DBG=		# might contain unwanted -Ofoo
     51 DEFWARNINGS?=	yes
     52 .if (${DEFWARNINGS} == "yes")
     53 .if !defined(NOGCCERROR)
     54 CWARNFLAGS+=	-Werror
     55 .endif
     56 CWARNFLAGS+=	-Wall -Wno-main -Wno-format-zero-length -Wpointer-arith
     57 CWARNFLAGS+=	-Wmissing-prototypes -Wstrict-prototypes
     58 # Add -Wno-sign-compare.  -Wsign-compare is included in -Wall as of GCC 3.3,
     59 # but our sources aren't up for it yet.
     60 CWARNFLAGS+=	-Wno-sign-compare
     61 .endif
     62 CFLAGS+=	${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}}
     63 CFLAGS+=	${CPPFLAGS.${.IMPSRC:T}}
     64 CFLAGS+=	${CPUFLAGS} -ffreestanding ${DEBUG} ${COPTS} ${CWARNFLAGS}
     65 AFLAGS+=	${CPUFLAGS} -D_LOCORE
     66 
     67 # Define a set of xxx_G variables that will add -g to just those
     68 # files that match the shell patterns given in ${DEBUGLIST}
     69 #
     70 .for i in ${DEBUGLIST}
     71 .for j in ${CFILES:T:M$i.c}
     72 ${j:R}_G?= -g
     73 .endfor
     74 .endfor
     75 
     76 # compile rules: rules are named ${TYPE}_${SUFFIX} where TYPE is NORMAL or
     77 # NOPROF and SUFFIX is the file suffix, capitalized (e.g. C for a .c file).
     78 NORMAL_C?=	${CC} ${CFLAGS} ${CPPFLAGS} ${${<:T:R}_G} ${PROF} -c $<
     79 NOPROF_C?=	${CC} ${CFLAGS} ${CPPFLAGS} ${${<:T:R}_G} -c $<
     80 NORMAL_S?=	${CC} ${AFLAGS} ${CPPFLAGS} -c $<
     81 
     82 ##
     83 ## (3) libkern and compat
     84 ##
     85 ## Set KERN_AS in the port Makefile to "obj" or "library".  The
     86 ## default is "library", as documented in $S/lib/libkern/Makefile.inc.
     87 ##
     88 
     89 ### find out what to use for libkern
     90 .include "$S/lib/libkern/Makefile.inc"
     91 .ifndef PROF
     92 LIBKERN?=	${KERNLIB}
     93 .else
     94 LIBKERN?=	${KERNLIB_PROF}
     95 .endif
     96 
     97 LIBKERNLN?=	${KERNLIBLN}
     98 
     99 ### find out what to use for libcompat
    100 .include "$S/compat/common/Makefile.inc"
    101 .ifndef PROF
    102 LIBCOMPAT?=	${COMPATLIB}
    103 .else
    104 LIBCOMPAT?=	${COMPATLIB_PROF}
    105 .endif
    106 
    107 LIBCOMPATLN?=	${COMPATLIBLN}
    108 
    109 ##
    110 ## (4) local objects, compile rules, and dependencies
    111 ##
    112 ## Each port should have a corresponding section with settings for
    113 ## MD_CFILES, MD_SFILES, and MD_OBJS, along with build rules for same.
    114 ##
    115 MI_CFILES=devsw.c ioconf.c param.c
    116 # the need for a MI_SFILES variable is dubitable at best
    117 MI_OBJS=${MI_CFILES:S/.c/.o/}
    118 
    119 param.c: $S/conf/param.c
    120 	rm -f param.c
    121 	cp $S/conf/param.c .
    122 
    123 param.o: Makefile
    124 
    125 .for _cfile in ${MI_CFILES}
    126 ${_cfile:T:R}.o: ${_cfile}
    127 	${NORMAL_C}
    128 .endfor
    129 
    130 ##
    131 ## (5) link settings
    132 ##
    133 ## TEXTADDR (or LOADADDRESS), LINKFORMAT, and any EXTRA_LINKFLAGS must
    134 ## be set in the port's Makefile.  The port specific definitions for
    135 ## LINKFLAGS_NORMAL and LINKFLAGS_DEBUG will added to the LINKFLAGS
    136 ## depending on the value of DEBUG.
    137 ##
    138 # load lines for config "xxx" will be emitted as:
    139 # xxx: ${SYSTEM_DEP} swapxxx.o
    140 #	${SYSTEM_LD_HEAD}
    141 #	${SYSTEM_LD} swapxxx.o
    142 #	${SYSTEM_LD_TAIL}
    143 SYSTEM_OBJ?=	${MD_OBJS} ${MI_OBJS} ${OBJS} ${LIBCOMPAT} ${LIBKERN}
    144 SYSTEM_DEP?=	Makefile ${SYSTEM_OBJ} .gdbinit
    145 SYSTEM_LD_HEAD?=	@rm -f $@
    146 SYSTEM_LD?=	@echo ${LD} ${LINKFLAGS} -o $@ '$${SYSTEM_OBJ}' '$${EXTRA_OBJ}' vers.o; \
    147 		${LD} ${LINKFLAGS} -o $@ ${SYSTEM_OBJ} ${EXTRA_OBJ} vers.o
    148 SYSTEM_LD_TAIL?=	@${SIZE} $@; chmod 755 $@
    149 
    150 TEXTADDR?=	${LOADADDRESS}			# backwards compatibility
    151 LINKTEXT?=	${TEXTADDR:C/.+/-Ttext &/}
    152 LINKDATA?=	${DATAADDR:C/.+/-Tdata &/}
    153 ENTRYPOINT?=	start
    154 LINKENTRY?=	${ENTRYPOINT:C/.+/-e &/}
    155 LINKFLAGS?=	${LINKFORMAT} ${LINKTEXT} ${LINKDATA} ${LINKENTRY} \
    156 		${EXTRA_LINKFLAGS}
    157 
    158 LINKFLAGS_DEBUG?=	-X
    159 SYSTEM_LD_TAIL_DEBUG?=; \
    160 		echo mv -f $@ $@.gdb; mv -f $@ $@.gdb; \
    161 		echo ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb; \
    162 		${STRIP} ${STRIPFLAGS} -o $@ $@.gdb
    163 LINKFLAGS_NORMAL?=	-S
    164 STRIPFLAGS?=	-g
    165 
    166 DEBUG?=
    167 .if ${DEBUG} == "-g" || ${DEBUG} == "-gstabs" || ${DEBUG} == "-gstabs+"
    168 SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_DEBUG}
    169 LINKFLAGS+=	${LINKFLAGS_DEBUG}
    170 EXTRA_KERNELS+= ${KERNELS:@.KERNEL.@${.KERNEL.}.gdb@}
    171 .elifndef PROF
    172 LINKFLAGS+=	${LINKFLAGS_NORMAL}
    173 .endif
    174 
    175 SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_EXTRA}
    176 
    177 ##
    178 ## (6) port independent targets and dependencies: assym.h, vers.o
    179 ##
    180 .if !target(assym.h)
    181 assym.h: $S/kern/genassym.sh ${GENASSYM} ${GENASSYM_EXTRAS}
    182 	cat ${GENASSYM} ${GENASSYM_EXTRAS} | \
    183 	    sh $S/kern/genassym.sh ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} \
    184 	    > assym.h.tmp && \
    185 	mv -f assym.h.tmp assym.h
    186 ${MD_SFILES:C/\.[Ss]/.o/} ${SFILES:C/\.[Ss]/.o/}: assym.h
    187 .endif
    188 
    189 .if !target(vers.o)
    190 newvers: vers.o
    191 vers.o: ${SYSTEM_DEP} ${SYSTEM_SWAP_DEP} $S/conf/newvers.sh $S/conf/osrelease.sh
    192 	sh $S/conf/newvers.sh
    193 	${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c vers.c
    194 .endif
    195 
    196 .if !target(config_time.h)
    197 EXTRA_CLEAN+= config_time.h
    198 config_time.h: Makefile
    199 	cp config_time.src config_time.h
    200 .endif
    201 
    202 .if defined(MEMORY_DISK_IMAGE)
    203 md_root_image.h: ${MEMORY_DISK_IMAGE}
    204 	${TOOL_HEXDUMP} -v -e '"\t" 8/1 "0x%02x, " "\n"' ${.ALLSRC} > ${.TARGET}
    205 
    206 # XXX This is only needed when building md_root.o
    207 CPPFLAGS+=	-DMEMORY_DISK_IMAGE
    208 md_root.o: md_root_image.h
    209 .endif
    210 
    211 # depend on MEMORY_DISK_IMAGE configuration
    212 md_root.o: Makefile
    213 
    214 # depend on root or device configuration
    215 autoconf.o conf.o: Makefile
    216 
    217 # depend on network or filesystem configuration
    218 uipc_proto.o vfs_conf.o: Makefile
    219 
    220 # depend on maxusers and CPU configuration
    221 assym.h machdep.o: Makefile
    222 
    223 ##
    224 ## (7) misc targets: install, clean(dir), depend(all), lint, links, tags,
    225 ##                   cscope, mkid
    226 ##
    227 ## Any ports that have other stuff to be cleaned up should fill in
    228 ## EXTRA_CLEAN.  Some ports may want different settings for
    229 ## KERNLINTFLAGS, MKDEP_CFLAGS, or MKDEP_AFLAGS.
    230 ##
    231 .if !target(__CLEANKERNEL)
    232 __CLEANKERNEL: .USE
    233 	@echo "${.TARGET}ing the kernel objects"
    234 	rm -f ${KERNELS} eddep tags *.[io] *.ln [a-z]*.s vers.c \
    235 	    [Ee]rrs linterrs makelinks assym.h.tmp assym.h \
    236 	    ${EXTRA_KERNELS} ${EXTRA_CLEAN}
    237 .endif
    238 
    239 .if !target(kernelnames)
    240 kernelnames:
    241 	@echo "${KERNELS} ${EXTRA_KERNELS}"
    242 .endif
    243 
    244 .if !target(__CLEANDEPEND)
    245 __CLEANDEPEND: .USE
    246 	rm -f .depend
    247 .endif
    248 
    249 # do not !target these, the kern and compat Makefiles augment them
    250 cleandir distclean: __CLEANKERNEL __CLEANDEPEND
    251 clean: __CLEANKERNEL
    252 depend: .depend
    253 
    254 .if !target(.depend)
    255 SRCS?=		${MD_SFILES} ${MD_CFILES} ${MI_CFILES} ${CFILES} ${SFILES}
    256 MKDEP_AFLAGS?=	${AFLAGS}
    257 MKDEP_CFLAGS?=	${CFLAGS}
    258 .depend: ${SRCS} assym.h config_time.h
    259 	${MKDEP} ${MKDEP_AFLAGS} ${CPPFLAGS} ${MD_SFILES} ${SFILES}
    260 	${MKDEP} -a ${MKDEP_CFLAGS} ${CPPFLAGS} ${MD_CFILES} ${MI_CFILES} \
    261 	    ${CFILES}
    262 	cat ${GENASSYM} ${GENASSYM_EXTRAS} | \
    263 	    sh $S/kern/genassym.sh ${MKDEP} -f assym.dep ${CFLAGS} ${CPPFLAGS}
    264 	@sed -e 's/.*\.o:.*\.c/assym.h:/' < assym.dep >> .depend
    265 	@rm -f assym.dep
    266 .endif
    267 
    268 .if !target(dependall)
    269 dependall: depend all
    270 .endif
    271 
    272 .if !target(lint)
    273 ALLSFILES?=	${MD_SFILES} ${SFILES}
    274 LINTSTUBS?=	${ALLSFILES:T:R:C/^.*$/LintStub_&.c/g}
    275 KERNLINTFLAGS?=	-bcehnxzFS
    276 NORMAL_LN?=	${LINT} ${KERNLINTFLAGS} ${CPPFLAGS:M-[IDU]*} -i $<
    277 
    278 _lsrc=${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES}
    279 LOBJS?= ${_lsrc:T:S/.c$/.ln/g} ${LIBKERNLN} ${LIBCOMPATLN}
    280 
    281 .for _sfile in ${ALLSFILES}
    282 LintStub_${_sfile:T:R}.c: ${_sfile} assym.h
    283 	${CC} -E -C ${AFLAGS} ${CPPFLAGS} ${_sfile} | \
    284 	      awk -f $S/kern/genlintstub.awk >${.TARGET}
    285 .endfor
    286 
    287 .for _cfile in ${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES}
    288 ${_cfile:T:R}.ln: ${_cfile}
    289 	${NORMAL_LN}
    290 .endfor
    291 
    292 lint: ${LOBJS}
    293 	${LINT} ${KERNLINTFLAGS} ${CPPFLAGS:M-[IDU]*} ${LOBJS}
    294 .endif
    295 
    296 .if !target(install)
    297 # The install target can be redefined by putting a
    298 # install-kernel-${MACHINE_NAME} target into /etc/mk.conf
    299 MACHINE_NAME!=  uname -n
    300 install: install-kernel-${MACHINE_NAME}
    301 .if !target(install-kernel-${MACHINE_NAME})
    302 install-kernel-${MACHINE_NAME}:
    303 	rm -f ${DESTDIR}/onetbsd
    304 	ln ${DESTDIR}/netbsd ${DESTDIR}/onetbsd
    305 	cp netbsd ${DESTDIR}/nnetbsd
    306 	mv ${DESTDIR}/nnetbsd ${DESTDIR}/netbsd
    307 .endif
    308 .endif
    309 
    310 .if !target(tags)
    311 tags:
    312 	@echo "see $S/kern/Makefile for tags"
    313 .endif
    314 
    315 EXTRA_CLEAN+= cscope.out
    316 .if !target(cscope.out)
    317 cscope.out: Makefile depend
    318 	@echo Building cscope.out source database
    319 	@echo ${SRCS} `sed 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' \
    320 	lib/kern/.depend lib/compat/.depend | tr ' ' '\n' | \
    321 	sed "s|^../../||" | sort -u` \
    322 	| ${CSCOPE} -k -i - -b `echo ${INCLUDES} | sed s/-nostdinc//`
    323 #	cscope doesn't write cscope.out if it's uptodate, so ensure
    324 #	make doesn't keep calling cscope when not needed.
    325 	@touch cscope.out
    326 .endif
    327 
    328 .if !target(cscope)
    329 cscope: cscope.out
    330 	@${CSCOPE} -d
    331 .endif
    332 
    333 EXTRA_CLEAN+= ID
    334 .if !target(mkid)
    335 .PHONY: mkid
    336 mkid: ID
    337 
    338 ID: Makefile depend
    339 	@echo Building mkid database
    340 	@${MKID} `sed 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' lib/kern/.depend \
    341 	lib/compat/.depend | tr ' ' '\n' | sed "s|^../../||" | sort -u` \
    342 	`sed 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' .depend | tr ' ' '\n' \
    343 	| sort -u`
    344 
    345 .endif
    346 
    347 .include "${S}/gdbscripts/Makefile.inc"
    348 
    349 EXTRA_CLEAN+= .gdbinit
    350 .gdbinit: Makefile ${S}/gdbscripts/Makefile.inc
    351 	@echo building GDB initialization file
    352 	rm -f .gdbinit
    353 .for __gdbinit in ${SYS_GDBINIT}
    354 	echo "source ${S}/gdbscripts/${__gdbinit}" >> .gdbinit
    355 .endfor
    356 .if defined(GDBINIT) && !empty(GDBINIT)
    357 .for __gdbinit in ${GDBINIT}
    358 	echo "source ${__gdbinit}" >> .gdbinit
    359 .endfor
    360 .endif
    361 
    362 ##
    363 ## the end
    364 ##
    365