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Makefile.kern.inc revision 1.44 
      1 #	$NetBSD: Makefile.kern.inc,v 1.44 2003/11/14 08:33:36 dsl 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 
     63 # Disable unitialized warnings with 2.95 - it gets it wrong way too often
     64 _ISGCC295!=		${CC} --version 2>/dev/null | grep 2.95 2>/dev/null || echo 0
     65 .if ${_ISGCC295}
     66 CWARNFLAGS+=	-Wno-uninitialized
     67 .endif
     68 
     69 CFLAGS+=	${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}}
     70 CFLAGS+=	${CPPFLAGS.${.IMPSRC:T}}
     71 CFLAGS+=	${CPUFLAGS} -ffreestanding ${DEBUG} ${COPTS} ${CWARNFLAGS}
     72 AFLAGS+=	${CPUFLAGS} -D_LOCORE
     73 
     74 # Define a set of xxx_G variables that will add -g to just those
     75 # files that match the shell patterns given in ${DEBUGLIST}
     76 #
     77 .for i in ${DEBUGLIST}
     78 .for j in ${CFILES:T:M$i.c}
     79 ${j:R}_G?= -g
     80 .endfor
     81 .endfor
     82 
     83 # compile rules: rules are named ${TYPE}_${SUFFIX} where TYPE is NORMAL or
     84 # NOPROF and SUFFIX is the file suffix, capitalized (e.g. C for a .c file).
     85 NORMAL_C?=	${CC} ${CFLAGS} ${CPPFLAGS} ${${<:T:R}_G} ${PROF} -c $<
     86 NOPROF_C?=	${CC} ${CFLAGS} ${CPPFLAGS} ${${<:T:R}_G} -c $<
     87 NORMAL_S?=	${CC} ${AFLAGS} ${CPPFLAGS} -c $<
     88 
     89 ##
     90 ## (3) libkern and compat
     91 ##
     92 ## Set KERN_AS in the port Makefile to "obj" or "library".  The
     93 ## default is "library", as documented in $S/lib/libkern/Makefile.inc.
     94 ##
     95 
     96 ### find out what to use for libkern
     97 .include "$S/lib/libkern/Makefile.inc"
     98 .ifndef PROF
     99 LIBKERN?=	${KERNLIB}
    100 .else
    101 LIBKERN?=	${KERNLIB_PROF}
    102 .endif
    103 
    104 LIBKERNLN?=	${KERNLIBLN}
    105 
    106 ### find out what to use for libcompat
    107 .include "$S/compat/common/Makefile.inc"
    108 .ifndef PROF
    109 LIBCOMPAT?=	${COMPATLIB}
    110 .else
    111 LIBCOMPAT?=	${COMPATLIB_PROF}
    112 .endif
    113 
    114 LIBCOMPATLN?=	${COMPATLIBLN}
    115 
    116 ##
    117 ## (4) local objects, compile rules, and dependencies
    118 ##
    119 ## Each port should have a corresponding section with settings for
    120 ## MD_CFILES, MD_SFILES, and MD_OBJS, along with build rules for same.
    121 ##
    122 MI_CFILES=devsw.c ioconf.c param.c
    123 # the need for a MI_SFILES variable is dubitable at best
    124 MI_OBJS=${MI_CFILES:S/.c/.o/}
    125 
    126 param.c: $S/conf/param.c
    127 	rm -f param.c
    128 	cp $S/conf/param.c .
    129 
    130 param.o: Makefile
    131 
    132 .for _cfile in ${MI_CFILES}
    133 ${_cfile:T:R}.o: ${_cfile}
    134 	${NORMAL_C}
    135 .endfor
    136 
    137 ##
    138 ## (5) link settings
    139 ##
    140 ## TEXTADDR (or LOADADDRESS), LINKFORMAT, and any EXTRA_LINKFLAGS must
    141 ## be set in the port's Makefile.  The port specific definitions for
    142 ## LINKFLAGS_NORMAL and LINKFLAGS_DEBUG will added to the LINKFLAGS
    143 ## depending on the value of DEBUG.
    144 ##
    145 # load lines for config "xxx" will be emitted as:
    146 # xxx: ${SYSTEM_DEP} swapxxx.o
    147 #	${SYSTEM_LD_HEAD}
    148 #	${SYSTEM_LD} swapxxx.o
    149 #	${SYSTEM_LD_TAIL}
    150 SYSTEM_OBJ?=	${MD_OBJS} ${MI_OBJS} ${OBJS} ${LIBCOMPAT} ${LIBKERN}
    151 SYSTEM_DEP?=	Makefile ${SYSTEM_OBJ} .gdbinit
    152 SYSTEM_LD_HEAD?=	@rm -f $@
    153 SYSTEM_LD?=	@echo ${LD} ${LINKFLAGS} -o $@ '$${SYSTEM_OBJ}' '$${EXTRA_OBJ}' vers.o; \
    154 		${LD} ${LINKFLAGS} -o $@ ${SYSTEM_OBJ} ${EXTRA_OBJ} vers.o
    155 SYSTEM_LD_TAIL?=	@${SIZE} $@; chmod 755 $@
    156 
    157 TEXTADDR?=	${LOADADDRESS}			# backwards compatibility
    158 LINKTEXT?=	${TEXTADDR:C/.+/-Ttext &/}
    159 LINKDATA?=	${DATAADDR:C/.+/-Tdata &/}
    160 ENTRYPOINT?=	start
    161 LINKENTRY?=	${ENTRYPOINT:C/.+/-e &/}
    162 LINKFLAGS?=	${LINKFORMAT} ${LINKTEXT} ${LINKDATA} ${LINKENTRY} \
    163 		${EXTRA_LINKFLAGS}
    164 
    165 LINKFLAGS_DEBUG?=	-X
    166 SYSTEM_LD_TAIL_DEBUG?=; \
    167 		echo mv -f $@ $@.gdb; mv -f $@ $@.gdb; \
    168 		echo ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb; \
    169 		${STRIP} ${STRIPFLAGS} -o $@ $@.gdb
    170 LINKFLAGS_NORMAL?=	-S
    171 STRIPFLAGS?=	-g
    172 
    173 DEBUG?=
    174 .if ${DEBUG} == "-g" || ${DEBUG} == "-gstabs" || ${DEBUG} == "-gstabs+"
    175 SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_DEBUG}
    176 LINKFLAGS+=	${LINKFLAGS_DEBUG}
    177 EXTRA_KERNELS+= ${KERNELS:@.KERNEL.@${.KERNEL.}.gdb@}
    178 .elifndef PROF
    179 LINKFLAGS+=	${LINKFLAGS_NORMAL}
    180 .endif
    181 
    182 SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_EXTRA}
    183 
    184 ##
    185 ## (6) port independent targets and dependencies: assym.h, vers.o
    186 ##
    187 .if !target(assym.h)
    188 assym.h: $S/kern/genassym.sh ${GENASSYM} ${GENASSYM_EXTRAS}
    189 	cat ${GENASSYM} ${GENASSYM_EXTRAS} | \
    190 	    sh $S/kern/genassym.sh ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} \
    191 	    > assym.h.tmp && \
    192 	mv -f assym.h.tmp assym.h
    193 ${MD_SFILES:C/\.[Ss]/.o/} ${SFILES:C/\.[Ss]/.o/}: assym.h
    194 .endif
    195 
    196 .if !target(vers.o)
    197 newvers: vers.o
    198 vers.o: ${SYSTEM_DEP} ${SYSTEM_SWAP_DEP} $S/conf/newvers.sh $S/conf/osrelease.sh
    199 	sh $S/conf/newvers.sh
    200 	${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c vers.c
    201 .endif
    202 
    203 .if !target(config_time.h)
    204 EXTRA_CLEAN+= config_time.h
    205 config_time.h: Makefile
    206 	cp config_time.src config_time.h
    207 .endif
    208 
    209 .if defined(MEMORY_DISK_IMAGE)
    210 md_root_image.h: ${MEMORY_DISK_IMAGE}
    211 	${TOOL_HEXDUMP} -v -e '"\t" 8/1 "0x%02x, " "\n"' ${.ALLSRC} > ${.TARGET}
    212 
    213 # XXX This is only needed when building md_root.o
    214 CPPFLAGS+=	-DMEMORY_DISK_IMAGE
    215 md_root.o: md_root_image.h
    216 .endif
    217 
    218 # depend on MEMORY_DISK_IMAGE configuration
    219 md_root.o: Makefile
    220 
    221 # depend on root or device configuration
    222 autoconf.o conf.o: Makefile
    223 
    224 # depend on network or filesystem configuration
    225 uipc_proto.o vfs_conf.o: Makefile
    226 
    227 # depend on maxusers and CPU configuration
    228 assym.h machdep.o: Makefile
    229 
    230 ##
    231 ## (7) misc targets: install, clean(dir), depend(all), lint, links, tags,
    232 ##                   cscope, mkid
    233 ##
    234 ## Any ports that have other stuff to be cleaned up should fill in
    235 ## EXTRA_CLEAN.  Some ports may want different settings for
    236 ## KERNLINTFLAGS, MKDEP_CFLAGS, or MKDEP_AFLAGS.
    237 ##
    238 .if !target(__CLEANKERNEL)
    239 __CLEANKERNEL: .USE
    240 	@echo "${.TARGET}ing the kernel objects"
    241 	rm -f ${KERNELS} eddep tags *.[io] *.ln [a-z]*.s vers.c \
    242 	    [Ee]rrs linterrs makelinks assym.h.tmp assym.h \
    243 	    ${EXTRA_KERNELS} ${EXTRA_CLEAN}
    244 .endif
    245 
    246 .if !target(kernelnames)
    247 kernelnames:
    248 	@echo "${KERNELS} ${EXTRA_KERNELS}"
    249 .endif
    250 
    251 .if !target(__CLEANDEPEND)
    252 __CLEANDEPEND: .USE
    253 	rm -f .depend
    254 .endif
    255 
    256 # do not !target these, the kern and compat Makefiles augment them
    257 cleandir distclean: __CLEANKERNEL __CLEANDEPEND
    258 clean: __CLEANKERNEL
    259 depend: .depend
    260 dependall: depend all
    261 
    262 .if !target(.depend)
    263 SRCS?=		${MD_SFILES} ${MD_CFILES} ${MI_CFILES} ${CFILES} ${SFILES}
    264 MKDEP_AFLAGS?=	${AFLAGS}
    265 MKDEP_CFLAGS?=	${CFLAGS}
    266 .depend: ${SRCS} assym.h config_time.h
    267 	${MKDEP} -- ${MKDEP_AFLAGS} ${CPPFLAGS} ${MD_SFILES} ${SFILES}
    268 	${MKDEP} -a -- ${MKDEP_CFLAGS} ${CPPFLAGS} ${MD_CFILES} ${MI_CFILES} \
    269 	    ${CFILES}
    270 	cat ${GENASSYM} ${GENASSYM_EXTRAS} | \
    271 	    sh $S/kern/genassym.sh ${MKDEP} -f assym.dep -- \
    272 	    ${CFLAGS} ${CPPFLAGS}
    273 	@sed -e 's/.*\.o:.*\.c/assym.h:/' < assym.dep >> .depend
    274 	@rm -f assym.dep
    275 .endif
    276 
    277 .if !target(lint)
    278 ALLSFILES?=	${MD_SFILES} ${SFILES}
    279 LINTSTUBS?=	${ALLSFILES:T:R:C/^.*$/LintStub_&.c/g}
    280 KERNLINTFLAGS?=	-bcehnxzFS
    281 NORMAL_LN?=	${LINT} ${KERNLINTFLAGS} ${CPPFLAGS:M-[IDU]*} -i $<
    282 
    283 _lsrc=${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES}
    284 LOBJS?= ${_lsrc:T:S/.c$/.ln/g} ${LIBKERNLN} ${LIBCOMPATLN}
    285 
    286 .for _sfile in ${ALLSFILES}
    287 LintStub_${_sfile:T:R}.c: ${_sfile} assym.h
    288 	${CC} -E -C ${AFLAGS} ${CPPFLAGS} ${_sfile} | \
    289 	      awk -f $S/kern/genlintstub.awk >${.TARGET}
    290 .endfor
    291 
    292 .for _cfile in ${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES}
    293 ${_cfile:T:R}.ln: ${_cfile}
    294 	${NORMAL_LN}
    295 .endfor
    296 
    297 lint: ${LOBJS}
    298 	${LINT} ${KERNLINTFLAGS} ${CPPFLAGS:M-[IDU]*} ${LOBJS}
    299 .endif
    300 
    301 .if !target(install)
    302 # The install target can be redefined by putting a
    303 # install-kernel-${MACHINE_NAME} target into /etc/mk.conf
    304 MACHINE_NAME!=  uname -n
    305 install: install-kernel-${MACHINE_NAME}
    306 .if !target(install-kernel-${MACHINE_NAME})
    307 install-kernel-${MACHINE_NAME}:
    308 	rm -f ${DESTDIR}/onetbsd
    309 	ln ${DESTDIR}/netbsd ${DESTDIR}/onetbsd
    310 	cp netbsd ${DESTDIR}/nnetbsd
    311 	mv ${DESTDIR}/nnetbsd ${DESTDIR}/netbsd
    312 .endif
    313 .endif
    314 
    315 .if !target(tags)
    316 tags:
    317 	@echo "see $S/kern/Makefile for tags"
    318 .endif
    319 
    320 EXTRA_CLEAN+= cscope.out
    321 .if !target(cscope.out)
    322 cscope.out: Makefile depend
    323 	@echo Building cscope.out source database
    324 	@echo ${SRCS} `sed 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' \
    325 	lib/kern/.depend lib/compat/.depend | tr ' ' '\n' | \
    326 	sed "s|^../../||" | sort -u` \
    327 	| ${CSCOPE} -k -i - -b `echo ${INCLUDES} | sed s/-nostdinc//`
    328 #	cscope doesn't write cscope.out if it's uptodate, so ensure
    329 #	make doesn't keep calling cscope when not needed.
    330 	@touch cscope.out
    331 .endif
    332 
    333 .if !target(cscope)
    334 cscope: cscope.out
    335 	@${CSCOPE} -d
    336 .endif
    337 
    338 EXTRA_CLEAN+= ID
    339 .if !target(mkid)
    340 .PHONY: mkid
    341 mkid: ID
    342 
    343 ID: Makefile depend
    344 	@echo Building mkid database
    345 	@${MKID} `sed 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' lib/kern/.depend \
    346 	lib/compat/.depend | tr ' ' '\n' | sed "s|^../../||" | sort -u` \
    347 	`sed 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' .depend | tr ' ' '\n' \
    348 	| sort -u`
    349 
    350 .endif
    351 
    352 .include "${S}/gdbscripts/Makefile.inc"
    353 
    354 EXTRA_CLEAN+= .gdbinit
    355 .gdbinit: Makefile ${S}/gdbscripts/Makefile.inc
    356 	@echo building GDB initialization file
    357 	rm -f .gdbinit
    358 .for __gdbinit in ${SYS_GDBINIT}
    359 	echo "source ${S}/gdbscripts/${__gdbinit}" >> .gdbinit
    360 .endfor
    361 .if defined(GDBINIT) && !empty(GDBINIT)
    362 .for __gdbinit in ${GDBINIT}
    363 	echo "source ${__gdbinit}" >> .gdbinit
    364 .endfor
    365 .endif
    366 
    367 ##
    368 ## the end
    369 ##
    370