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Makefile.kern.inc revision 1.3.2.4 
      1 #	$NetBSD: Makefile.kern.inc,v 1.3.2.4 2002/04/01 07:44:55 nathanw 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}. There are
      5 # many `MI' definitions that should end up in here, but they are not yet.
      6 #
      7 # Each target in this file should be protected with `if !target(target)'
      8 # or `if !commands(target)' and each variable should only be conditionally
      9 # assigned `VAR ?= VALUE', so that everything can be overriden.
     10 #
     11 # DEBUG is set to -g if debugging.
     12 # PROF is set to -pg if profiling.
     13 #
     14 # To specify debugging, add the config line: makeoptions DEBUG="-g"
     15 # A better way is to specify -g only for a few files.
     16 #
     17 #	makeoptions DEBUGLIST="uvm* trap if_*"
     18 #
     19 # all ports are expected to include bsd.own.mk for toolchain settings
     20 
     21 ##
     22 ## (0) toolchain settings for things that aren't part of the standard
     23 ## toolchain
     24 ##
     25 MKDEP?=		mkdep
     26 STRIP?=		strip
     27 OBJCOPY?=	objcopy
     28 OBJDUMP?=	objdump
     29 .MAKEOVERRIDES+=USETOOLS	# make sure proper value is propagated
     30 
     31 ##
     32 ## (1) port independent source tree identification
     33 ##
     34 # source tree is located via $S relative to the compilation directory
     35 .ifndef S
     36 S!=	cd ../../../..; pwd
     37 .endif
     38 
     39 ##
     40 ## (2) compile settings
     41 ##
     42 ## CPPFLAGS, CFLAGS, and AFLAGS must be set in the port's Makefile
     43 ##
     44 INCLUDES?=	-I. ${EXTRA_INCLUDES} -I$S/arch -I$S -nostdinc
     45 CPPFLAGS+=	${INCLUDES} ${IDENT} ${PARAM} -D_KERNEL -D_KERNEL_OPT
     46 DEFCOPTS?=	-O2
     47 COPTS?=		${DEFCOPTS}
     48 DBG=		# might contain unwanted -Ofoo
     49 DEFWARNINGS?=	yes
     50 .if (${DEFWARNINGS} == "yes")
     51 CWARNFLAGS+=	-Werror -Wall -Wno-main
     52 WEAK_POINTERS?=	no
     53 .if !(${WEAK_POINTERS} == "yes")
     54 CWARNFLAGS+=	-Wpointer-arith
     55 .endif
     56 LOOSE_PROTOTYPES?= no
     57 .if !(${LOOSE_PROTOTYPES} == "yes")
     58 CWARNFLAGS+=	-Wmissing-prototypes -Wstrict-prototypes
     59 .endif
     60 # XXX Delete -Wuninitialized for now, since the compiler doesn't
     61 # XXX always get it right.  --thorpej
     62 CWARNFLAGS+=	-Wno-uninitialized
     63 .endif
     64 CFLAGS+=	-ffreestanding ${DEBUG} ${COPTS} ${CWARNFLAGS}
     65 AFLAGS+=	-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?=	${KERNLIB_PROF}
     95 .endif
     96 
     97 ### find out what to use for libcompat
     98 .include "$S/compat/common/Makefile.inc"
     99 .ifndef PROF
    100 LIBCOMPAT?=	${COMPATLIB}
    101 .else
    102 LIBCOMPAT?=	${COMPATLIB_PROF}
    103 .endif
    104 
    105 ##
    106 ## (4) local objects, compile rules, and dependencies
    107 ##
    108 ## Each port should have a corresponding section with settings for
    109 ## MD_CFILES, MD_SFILES, and MD_OBJS, along with build rules for same.
    110 ##
    111 MI_CFILES=ioconf.c param.c
    112 # the need for a MI_SFILES variable is dubitable at best
    113 MI_OBJS=${MI_CFILES:S/.c/.o/}
    114 
    115 param.c: $S/conf/param.c
    116 	rm -f param.c
    117 	cp $S/conf/param.c .
    118 
    119 param.o: Makefile
    120 
    121 .for _cfile in ${MI_CFILES}
    122 ${_cfile:T:R}.o: ${_cfile}
    123 	${NORMAL_C}
    124 .endfor
    125 
    126 ##
    127 ## (5) link settings
    128 ##
    129 ## TEXTADDR (or LOADADDRESS), LINKFORMAT, and any EXTRA_LINKFLAGS must
    130 ## be set in the port's Makefile.  The port specific definitions for
    131 ## LINKFLAGS_NORMAL and LINKFLAGS_DEBUG will added to the LINKFLAGS
    132 ## depending on the value of DEBUG.
    133 ##
    134 # load lines for config "xxx" will be emitted as:
    135 # xxx: ${SYSTEM_DEP} swapxxx.o
    136 #	${SYSTEM_LD_HEAD}
    137 #	${SYSTEM_LD} swapxxx.o
    138 #	${SYSTEM_LD_TAIL}
    139 SYSTEM_OBJ?=	${MD_OBJS} ${MI_OBJS} ${OBJS} ${LIBCOMPAT} ${LIBKERN}
    140 SYSTEM_DEP?=	Makefile ${SYSTEM_OBJ}
    141 SYSTEM_LD_HEAD?=	@rm -f $@
    142 SYSTEM_LD?=	@echo ${LD} ${LINKFLAGS} -o $@ '$${SYSTEM_OBJ}' vers.o; \
    143 		${LD} ${LINKFLAGS} -o $@ ${SYSTEM_OBJ} vers.o
    144 SYSTEM_LD_TAIL?=	@${SIZE} $@; chmod 755 $@
    145 
    146 TEXTADDR?=	${LOADADDRESS}			# backwards compatibility
    147 LINKTEXT?=	${TEXTADDR:C/.+/-Ttext &/}
    148 LINKDATA?=	${DATAADDR:C/.+/-Tdata &/}
    149 ENTRYPOINT?=	start
    150 LINKENTRY?=	${ENTRYPOINT:C/.+/-e &/}
    151 LINKFLAGS?=	${LINKFORMAT} ${LINKTEXT} ${LINKDATA} ${LINKENTRY} \
    152 		${EXTRA_LINKFLAGS}
    153 
    154 LINKFLAGS_DEBUG?=	-X
    155 SYSTEM_LD_TAIL_DEBUG?=; \
    156 		echo mv -f $@ $@.gdb; mv -f $@ $@.gdb; \
    157 		echo ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb; \
    158 		${STRIP} ${STRIPFLAGS} -o $@ $@.gdb
    159 LINKFLAGS_NORMAL?=	-S
    160 STRIPFLAGS?=	-g
    161 
    162 DEBUG?=
    163 .if ${DEBUG} == "-g"
    164 SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_DEBUG}
    165 LINKFLAGS+=	${LINKFLAGS_DEBUG}
    166 EXTRA_KERNELS+= ${KERNELS:@.KERNEL.@${.KERNEL.}.gdb@}
    167 .elifndef PROF
    168 LINKFLAGS+=	${LINKFLAGS_NORMAL}
    169 .endif
    170 
    171 SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_EXTRA}
    172 
    173 ##
    174 ## (6) port independent targets and dependencies: assym.h, vers.o
    175 ##
    176 .if !target(assym.h)
    177 assym.h: $S/kern/genassym.sh ${GENASSYM} ${GENASSYM_EXTRAS}
    178 	cat ${GENASSYM} ${GENASSYM_EXTRAS} | \
    179 	    sh $S/kern/genassym.sh ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} \
    180 	    > assym.h.tmp && \
    181 	mv -f assym.h.tmp assym.h
    182 ${MD_SFILES:C/\.[Ss]/.o/} ${SFILES:C/\.[Ss]/.o/}: assym.h
    183 .endif
    184 
    185 .if !target(vers.o)
    186 newvers: vers.o
    187 vers.o: ${SYSTEM_DEP} ${SYSTEM_SWAP_DEP}
    188 	sh $S/conf/newvers.sh
    189 	${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c vers.c
    190 .endif
    191 
    192 # depend on root or device configuration
    193 autoconf.o conf.o: Makefile
    194 
    195 # depend on network or filesystem configuration
    196 uipc_proto.o vfs_conf.o: Makefile
    197 
    198 # depend on maxusers and CPU configuration
    199 assym.h machdep.o: Makefile
    200 
    201 ##
    202 ## (7) misc targets: install, clean(dir), depend(all), lint, links, tags
    203 ##
    204 ## Any ports that have other stuff to be cleaned up should fill in
    205 ## EXTRA_CLEAN.  Some ports may want different settings for
    206 ## KERNLINTFLAGS, MKDEP_CFLAGS, or MKDEP_AFLAGS.
    207 ##
    208 .if !target(__CLEANKERNEL)
    209 __CLEANKERNEL: .USE
    210 	@echo "${.TARGET}ing the kernel objects"
    211 	rm -f ${KERNELS} eddep tags *.[io] [a-z]*.s vers.c \
    212 	    [Ee]rrs linterrs makelinks assym.h.tmp assym.h \
    213 	    ${EXTRA_KERNELS} ${EXTRA_CLEAN}
    214 .endif
    215 
    216 .if !target(kernelnames)
    217 kernelnames:
    218 	@echo "${KERNELS} ${EXTRA_KERNELS}"
    219 .endif
    220 
    221 .if !target(__CLEANDEPEND)
    222 __CLEANDEPEND: .USE
    223 	rm -f .depend
    224 .endif
    225 
    226 # do not !target these, the kern and compat Makefiles augment them
    227 cleandir distclean: __CLEANKERNEL __CLEANDEPEND
    228 clean: __CLEANKERNEL
    229 depend: .depend
    230 
    231 .if !target(.depend)
    232 SRCS?=		${MD_SFILES} ${MD_CFILES} ${MI_CFILES} ${CFILES} ${SFILES}
    233 MKDEP_AFLAGS?=	${AFLAGS}
    234 MKDEP_CFLAGS?=	${CFLAGS}
    235 .depend: ${SRCS} assym.h
    236 	${MKDEP} ${MKDEP_AFLAGS} ${CPPFLAGS} ${MD_SFILES} ${SFILES}
    237 	${MKDEP} -a ${MKDEP_CFLAGS} ${CPPFLAGS} ${MD_CFILES} ${MI_CFILES} \
    238 	    ${CFILES}
    239 	cat ${GENASSYM} ${GENASSYM_EXTRAS} | \
    240 	    sh $S/kern/genassym.sh ${MKDEP} -f assym.dep ${CFLAGS} ${CPPFLAGS}
    241 	@sed -e 's/.*\.o:.*\.c/assym.h:/' < assym.dep >> .depend
    242 	@rm -f assym.dep
    243 .endif
    244 
    245 .if !target(dependall)
    246 dependall: depend all
    247 .endif
    248 
    249 .if !target(lint)
    250 ALLSFILES?=	${MD_SFILES} ${SFILES}
    251 LINTSTUBS?=	${ALLSFILES:T:R:C/^.*$/LintStub_&.c/g}
    252 KERNLINTFLAGS?=	-hbxncez -Dvolatile=
    253 .for _sfile in ${ALLSFILES}
    254 LintStub_${_sfile:T:R}.c: ${_sfile} assym.h
    255 	${CC} -E -C ${AFLAGS} ${CPPFLAGS} ${_sfile} | \
    256 	      awk -f $S/kern/genlintstub.awk >${.TARGET}
    257 .endfor
    258 lint: ${CFILES} ${KERNLINTSTUBS} ${MI_CFILES} ${MD_CFILES}
    259 	@${LINT} ${KERNLINTFLAGS} ${CPPFLAGS} -UKGDB \
    260 	    ${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES} | \
    261 	    grep -v 'static function .* unused'
    262 .endif
    263 
    264 .if !target(install)
    265 # The install target can be redefined by putting a
    266 # install-kernel-${MACHINE_NAME} target into /etc/mk.conf
    267 MACHINE_NAME!=  uname -n
    268 install: install-kernel-${MACHINE_NAME}
    269 .if !target(install-kernel-${MACHINE_NAME}})
    270 install-kernel-${MACHINE_NAME}:
    271 	rm -f ${DESTDIR}/onetbsd
    272 	ln ${DESTDIR}/netbsd ${DESTDIR}/onetbsd
    273 	cp netbsd ${DESTDIR}/nnetbsd
    274 	mv ${DESTDIR}/nnetbsd ${DESTDIR}/netbsd
    275 .endif
    276 .endif
    277 
    278 .if !target(tags)
    279 tags:
    280 	@echo "see $S/kern/Makefile for tags"
    281 .endif
    282 
    283 ##
    284 ## the end
    285 ##
    286