The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/conf/Makefile.kern.inc

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    1 #       $NetBSD: Makefile.kern.inc,v 1.51.2.3 2004/09/13 17:32:31 tron 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 UUDECODE?=      ${TOOL_UUDECODE:Uuudecode}
   33 .MAKEOVERRIDES+=USETOOLS        # make sure proper value is propagated
   34 
   35 _MKMSG?=                @\#
   36 _MKSHMSG?=              echo
   37 _MKSHECHO?=             echo
   38 _MKMSG_CREATE?=         :
   39 _MKTARGET_COMPILE?=     :
   40 _MKTARGET_CREATE?=      :
   41 
   42 ##
   43 ## (1) port independent source tree identification
   44 ##
   45 # source tree is located via $S relative to the compilation directory
   46 .ifndef S
   47 S!=     cd ../../../..; pwd
   48 .endif
   49 
   50 ##
   51 ## (2) compile settings
   52 ##
   53 ## CPPFLAGS, CFLAGS, and AFLAGS must be set in the port's Makefile
   54 ##
   55 INCLUDES?=      -I. ${EXTRA_INCLUDES} -I$S/arch -I$S -nostdinc
   56 CPPFLAGS+=      ${INCLUDES} ${IDENT} ${PARAM} -D_KERNEL -D_KERNEL_OPT
   57 DEFCOPTS?=      -O2
   58 COPTS?=         ${DEFCOPTS}
   59 DBG=            # might contain unwanted -Ofoo
   60 DEFWARNINGS?=   yes
   61 .if (${DEFWARNINGS} == "yes")
   62 .if !defined(NOGCCERROR)
   63 CWARNFLAGS+=    -Werror
   64 .endif
   65 CWARNFLAGS+=    -Wall -Wno-main -Wno-format-zero-length -Wpointer-arith
   66 CWARNFLAGS+=    -Wmissing-prototypes -Wstrict-prototypes
   67 # Add -Wno-sign-compare.  -Wsign-compare is included in -Wall as of GCC 3.3,
   68 # but our sources aren't up for it yet.
   69 CWARNFLAGS+=    -Wno-sign-compare
   70 .endif
   71 
   72 CFLAGS+=        ${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}}
   73 CFLAGS+=        ${CPPFLAGS.${.IMPSRC:T}}
   74 CFLAGS+=        ${CPUFLAGS} -ffreestanding
   75 CFLAGS+=        ${CPUFLAGS} ${DEBUG} ${COPTS} ${CWARNFLAGS}
   76 AFLAGS+=        ${CPUFLAGS} -D_LOCORE
   77 
   78 # Disable unitialized warnings with 2.95 - it gets it wrong way too often
   79 _ISGCC295!=             ${CC} --version 2>/dev/null | grep 2.95 2>/dev/null || echo 0
   80 .if ${_ISGCC295}
   81 CWARNFLAGS+=    -Wno-uninitialized
   82 .else
   83 CFLAGS+=        -fno-zero-initialized-in-bss
   84 .endif
   85 
   86 # Use the per-source COPTS variables to add -g to just those
   87 # files that match the shell patterns given in ${DEBUGLIST}
   88 #
   89 .for i in ${DEBUGLIST}
   90 .for j in ${CFILES:T:M$i.c}
   91 COPTS.${j}+=-g
   92 .endfor
   93 .endfor
   94 
   95 # compile rules: rules are named ${TYPE}_${SUFFIX} where TYPE is NORMAL or
   96 # NOPROF and SUFFIX is the file suffix, capitalized (e.g. C for a .c file).
   97 NORMAL_C?=      @${_MKSHMSG} "compile  ${.CURDIR:T}/${.TARGET}"; \
   98                 ${_MKSHECHO}\
   99                 ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $<; \
  100                 ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $<
  101 NOPROF_C?=      @${_MKSHMSG} "compile  ${.CURDIR:T}/${.TARGET}"; \
  102                 ${_MKSHECHO}\
  103                 ${CC} ${CFLAGS} ${CPPFLAGS} -c $<; \
  104                 ${CC} ${CFLAGS} ${CPPFLAGS} -c $<
  105 NORMAL_S?=      @${_MKSHMSG} "compile  ${.CURDIR:T}/${.TARGET}"; \
  106                 ${_MKSHECHO}\
  107                 ${CC} ${AFLAGS} ${CPPFLAGS} -c $<; \
  108                 ${CC} ${AFLAGS} ${CPPFLAGS} -c $<
  109 
  110 ##
  111 ## (3) libkern and compat 
  112 ##
  113 ## Set KERN_AS in the port Makefile to "obj" or "library".  The
  114 ## default is "library", as documented in $S/lib/libkern/Makefile.inc.
  115 ##
  116 
  117 ### find out what to use for libkern
  118 .include "$S/lib/libkern/Makefile.inc"
  119 .ifndef PROF
  120 LIBKERN?=       ${KERNLIB}
  121 .else
  122 LIBKERN?=       ${KERNLIB_PROF}
  123 .endif
  124 
  125 LIBKERNLN?=     ${KERNLIBLN}
  126 
  127 ### find out what to use for libcompat
  128 .include "$S/compat/common/Makefile.inc"
  129 .ifndef PROF
  130 LIBCOMPAT?=     ${COMPATLIB}
  131 .else
  132 LIBCOMPAT?=     ${COMPATLIB_PROF}
  133 .endif
  134 
  135 LIBCOMPATLN?=   ${COMPATLIBLN}
  136 
  137 ##
  138 ## (4) local objects, compile rules, and dependencies
  139 ##
  140 ## Each port should have a corresponding section with settings for
  141 ## MD_CFILES, MD_SFILES, and MD_OBJS, along with build rules for same.
  142 ##
  143 MI_CFILES=devsw.c ioconf.c param.c
  144 # the need for a MI_SFILES variable is dubitable at best
  145 MI_OBJS=${MI_CFILES:S/.c/.o/}
  146 
  147 param.c: $S/conf/param.c
  148         ${_MKTARGET_CREATE}
  149         rm -f param.c
  150         cp $S/conf/param.c .
  151 
  152 param.o: Makefile
  153 
  154 .for _cfile in ${MI_CFILES}
  155 ${_cfile:T:R}.o: ${_cfile}
  156         ${NORMAL_C}
  157 .endfor
  158 
  159 ##
  160 ## (5) link settings
  161 ##
  162 ## TEXTADDR (or LOADADDRESS), LINKFORMAT, and any EXTRA_LINKFLAGS must
  163 ## be set in the port's Makefile.  The port specific definitions for
  164 ## LINKFLAGS_NORMAL and LINKFLAGS_DEBUG will added to the LINKFLAGS
  165 ## depending on the value of DEBUG.
  166 ##
  167 # load lines for config "xxx" will be emitted as:
  168 # xxx: ${SYSTEM_DEP} swapxxx.o
  169 #       ${SYSTEM_LD_HEAD}
  170 #       ${SYSTEM_LD} swapxxx.o
  171 #       ${SYSTEM_LD_TAIL}
  172 SYSTEM_OBJ?=    ${MD_OBJS} ${MI_OBJS} ${OBJS} ${LIBCOMPAT} ${LIBKERN}
  173 SYSTEM_DEP?=    Makefile ${SYSTEM_OBJ} .gdbinit
  174 SYSTEM_LD_HEAD?=@rm -f $@
  175 SYSTEM_LD?=     @${_MKSHMSG} "   link  ${.CURDIR:T}/${.TARGET}"; \
  176                 ${_MKSHECHO}\
  177                 ${LD} ${LINKFLAGS} -o $@ '$${SYSTEM_OBJ}' '$${EXTRA_OBJ}' vers.o; \
  178                 ${LD} ${LINKFLAGS} -o $@ ${SYSTEM_OBJ} ${EXTRA_OBJ} vers.o
  179 SYSTEM_LD_TAIL?=@${SIZE} $@; chmod 755 $@
  180 
  181 TEXTADDR?=      ${LOADADDRESS}                  # backwards compatibility
  182 LINKTEXT?=      ${TEXTADDR:C/.+/-Ttext &/}
  183 LINKDATA?=      ${DATAADDR:C/.+/-Tdata &/}
  184 ENTRYPOINT?=    start
  185 LINKENTRY?=     ${ENTRYPOINT:C/.+/-e &/}
  186 LINKFLAGS?=     ${LINKFORMAT} ${LINKTEXT} ${LINKDATA} ${LINKENTRY} \
  187                 ${EXTRA_LINKFLAGS}
  188 
  189 LINKFLAGS_DEBUG?=       -X
  190 SYSTEM_LD_TAIL_DEBUG?=; \
  191                 echo mv -f $@ $@.gdb; mv -f $@ $@.gdb; \
  192                 echo ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb; \
  193                 ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb
  194 LINKFLAGS_NORMAL?=      -S
  195 STRIPFLAGS?=    -g
  196 
  197 DEBUG?=
  198 .if ${DEBUG} == "-g" || ${DEBUG} == "-gstabs" || ${DEBUG} == "-gstabs+"
  199 SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_DEBUG}
  200 LINKFLAGS+=     ${LINKFLAGS_DEBUG}
  201 EXTRA_KERNELS+= ${KERNELS:@.KERNEL.@${.KERNEL.}.gdb@}
  202 .elifndef PROF
  203 LINKFLAGS+=     ${LINKFLAGS_NORMAL}
  204 .endif
  205 
  206 SYSTEM_LD_HEAD+=${SYSTEM_LD_HEAD_EXTRA}
  207 SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_EXTRA}
  208 
  209 ##
  210 ## (6) port independent targets and dependencies: assym.h, vers.o
  211 ##
  212 .if !target(assym.h)
  213 assym.h: $S/kern/genassym.sh ${GENASSYM} ${GENASSYM_EXTRAS}
  214         ${_MKTARGET_CREATE}
  215         cat ${GENASSYM} ${GENASSYM_EXTRAS} | \
  216             ${HOST_SH} $S/kern/genassym.sh ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} \
  217             > assym.h.tmp && \
  218         mv -f assym.h.tmp assym.h
  219 ${MD_SFILES:C/\.[Ss]/.o/} ${SFILES:C/\.[Ss]/.o/}: assym.h
  220 .endif
  221 
  222 .if !target(vers.o)
  223 newvers: vers.o
  224 vers.o: ${SYSTEM_DEP} ${SYSTEM_SWAP_DEP} $S/conf/newvers.sh $S/conf/osrelease.sh
  225         ${_MKMSG_CREATE} vers.c
  226         ${HOST_SH} $S/conf/newvers.sh
  227         ${_MKTARGET_COMPILE}
  228         ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c vers.c
  229 .endif
  230 
  231 .if !target(config_time.h)
  232 EXTRA_CLEAN+= config_time.h
  233 config_time.h: Makefile
  234         ${_MKTARGET_CREATE}
  235         cp config_time.src config_time.h
  236 .endif
  237 
  238 .if defined(MEMORY_DISK_IMAGE)
  239 md_root_image.h: ${MEMORY_DISK_IMAGE}
  240         ${_MKTARGET_CREATE}
  241         ${TOOL_HEXDUMP} -v -e '"\t" 8/1 "0x%02x, " "\n"' ${.ALLSRC} > ${.TARGET}
  242 
  243 # XXX This is only needed when building md_root.o
  244 CPPFLAGS+=      -DMEMORY_DISK_IMAGE
  245 md_root.o: md_root_image.h
  246 .endif
  247 
  248 # depend on MEMORY_DISK_IMAGE configuration
  249 md_root.o: Makefile
  250 
  251 # depend on root or device configuration
  252 autoconf.o conf.o: Makefile
  253 
  254 # depend on network or filesystem configuration
  255 uipc_proto.o vfs_conf.o: Makefile
  256 
  257 # depend on maxusers and CPU configuration
  258 assym.h machdep.o: Makefile
  259 
  260 ##
  261 ## (7) misc targets: install, clean(dir), depend(all), lint, links, tags,
  262 ##                   cscope, mkid
  263 ##
  264 ## Any ports that have other stuff to be cleaned up should fill in
  265 ## EXTRA_CLEAN.  Some ports may want different settings for
  266 ## KERNLINTFLAGS, MKDEP_CFLAGS, or MKDEP_AFLAGS.
  267 ##
  268 .if !target(__CLEANKERNEL)
  269 __CLEANKERNEL: .USE
  270         ${_MKMSG} "${.TARGET}ing the kernel objects"
  271         rm -f ${KERNELS} eddep tags *.[io] *.ln [a-z]*.s vers.c \
  272             [Ee]rrs linterrs makelinks assym.h.tmp assym.h \
  273             ${EXTRA_KERNELS} ${EXTRA_CLEAN}
  274 .endif
  275 
  276 .if !target(kernelnames)
  277 kernelnames:
  278         @echo "${KERNELS} ${EXTRA_KERNELS}"
  279 .endif
  280 
  281 .if !target(__CLEANDEPEND)
  282 __CLEANDEPEND: .USE
  283         rm -f .depend
  284 .endif
  285 
  286 # do not !target these, the kern and compat Makefiles augment them
  287 cleandir distclean: __CLEANKERNEL __CLEANDEPEND
  288 clean: __CLEANKERNEL
  289 depend: .depend
  290 dependall: depend all
  291 
  292 .if !target(.depend)
  293 SRCS?=          ${MD_SFILES} ${MD_CFILES} ${MI_CFILES} ${CFILES} ${SFILES}
  294 MKDEP_AFLAGS?=  ${AFLAGS}
  295 MKDEP_CFLAGS?=  ${CFLAGS}
  296 .depend: ${SRCS} assym.h config_time.h
  297         ${_MKTARGET_CREATE}
  298         ${MKDEP} -- ${MKDEP_AFLAGS} ${CPPFLAGS} ${MD_SFILES} ${SFILES}
  299         ${MKDEP} -a -- ${MKDEP_CFLAGS} ${CPPFLAGS} ${MD_CFILES} ${MI_CFILES} \
  300             ${CFILES}
  301         cat ${GENASSYM} ${GENASSYM_EXTRAS} | \
  302             ${HOST_SH} $S/kern/genassym.sh ${MKDEP} -f assym.dep -- \
  303             ${CFLAGS} ${CPPFLAGS}
  304         @sed -e 's/.*\.o:.*\.c/assym.h:/' < assym.dep >> .depend
  305         @rm -f assym.dep
  306 .endif
  307 
  308 .if !target(lint)
  309 ALLSFILES?=     ${MD_SFILES} ${SFILES}
  310 LINTSTUBS?=     ${ALLSFILES:T:R:C/^.*$/LintStub_&.c/g}
  311 KERNLINTFLAGS?= -bcehnxzFS
  312 NORMAL_LN?=     ${LINT} ${KERNLINTFLAGS} ${CPPFLAGS:M-[IDU]*} -i $<
  313 
  314 _lsrc=${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES}
  315 LOBJS?= ${_lsrc:T:S/.c$/.ln/g} ${LIBKERNLN} ${LIBCOMPATLN}
  316 
  317 .for _sfile in ${ALLSFILES}
  318 LintStub_${_sfile:T:R}.c: ${_sfile} assym.h
  319         ${_MKTARGET_COMPILE}
  320         ${CC} -E -C ${AFLAGS} ${CPPFLAGS} ${_sfile} | \
  321               awk -f $S/kern/genlintstub.awk >${.TARGET}
  322 .endfor
  323 
  324 .for _cfile in ${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES}
  325 ${_cfile:T:R}.ln: ${_cfile}
  326         ${_MKTARGET_COMPILE}
  327         ${NORMAL_LN}
  328 .endfor
  329 
  330 lint: ${LOBJS}
  331         ${LINT} ${KERNLINTFLAGS} ${CPPFLAGS:M-[IDU]*} ${LOBJS}
  332 .endif
  333 
  334 .if !target(install)
  335 # The install target can be redefined by putting a
  336 # install-kernel-${MACHINE_NAME} target into /etc/mk.conf
  337 MACHINE_NAME!=  uname -n
  338 install: install-kernel-${MACHINE_NAME}
  339 .if !target(install-kernel-${MACHINE_NAME})
  340 install-kernel-${MACHINE_NAME}:
  341         rm -f ${DESTDIR}/onetbsd
  342         ln ${DESTDIR}/netbsd ${DESTDIR}/onetbsd
  343         cp netbsd ${DESTDIR}/nnetbsd
  344         mv ${DESTDIR}/nnetbsd ${DESTDIR}/netbsd
  345 .endif
  346 .endif
  347 
  348 .if !target(tags)
  349 tags:
  350         @echo "see $S/kern/Makefile for tags"
  351 .endif
  352 
  353 EXTRA_CLEAN+= cscope.out
  354 .if !target(cscope.out)
  355 cscope.out: Makefile depend
  356         ${_MKTARGET_CREATE}
  357         @echo ${SRCS} `sed 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' \
  358         lib/kern/.depend lib/compat/.depend | tr ' ' '\n' | \
  359         sed "s|^../../||" | sort -u` \
  360         | ${CSCOPE} -k -i - -b `echo ${INCLUDES} | sed s/-nostdinc//`
  361 #       cscope doesn't write cscope.out if it's uptodate, so ensure
  362 #       make doesn't keep calling cscope when not needed.
  363         @touch cscope.out
  364 .endif
  365 
  366 .if !target(cscope)
  367 cscope: cscope.out
  368         @${CSCOPE} -d
  369 .endif
  370 
  371 EXTRA_CLEAN+= ID
  372 .if !target(mkid)
  373 .PHONY: mkid
  374 mkid: ID
  375 
  376 ID: Makefile depend
  377         ${_MKTARGET_CREATE}
  378         @${MKID} `sed 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' lib/kern/.depend \
  379         lib/compat/.depend | tr ' ' '\n' | sed "s|^../../||" | sort -u` \
  380         `sed 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' .depend | tr ' ' '\n' \
  381         | sort -u`
  382 
  383 .endif
  384 
  385 .include "${S}/gdbscripts/Makefile.inc"
  386 
  387 EXTRA_CLEAN+= .gdbinit
  388 .gdbinit: Makefile ${S}/gdbscripts/Makefile.inc
  389         ${_MKTARGET_CREATE}
  390         rm -f .gdbinit
  391 .for __gdbinit in ${SYS_GDBINIT}
  392         echo "source ${S}/gdbscripts/${__gdbinit}" >> .gdbinit
  393 .endfor
  394 .if defined(GDBINIT) && !empty(GDBINIT)
  395 .for __gdbinit in ${GDBINIT}
  396         echo "source ${__gdbinit}" >> .gdbinit
  397 .endfor
  398 .endif
  399 
  400 ##
  401 ## the end
  402 ##

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