Makefile.kern.inc revision 1.112
1 # $NetBSD: Makefile.kern.inc,v 1.112 2008/05/14 18:15:41 dholland 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 HEXDUMP?= ${TOOL_HEXDUMP:Uhexdump} 34 GENASSYM?= ${TOOL_GENASSYM:Ugenassym} 35 .MAKEOVERRIDES+=USETOOLS # make sure proper value is propagated 36 37 _MKMSG?= @\# 38 _MKSHMSG?= echo 39 _MKSHECHO?= echo 40 _MKMSG_CREATE?= : 41 _MKTARGET_COMPILE?= : 42 _MKTARGET_CREATE?= : 43 44 ## 45 ## (1) port independent source tree identification 46 ## 47 # source tree is located via $S relative to the compilation directory 48 .ifndef S 49 S!= cd ../../../..; pwd 50 .endif 51 52 ## 53 ## (2) compile settings 54 ## 55 ## CPPFLAGS, CFLAGS, and AFLAGS must be set in the port's Makefile 56 ## 57 INCLUDES?= -I. ${EXTRA_INCLUDES} -I${S}/../common/include -I$S/arch \ 58 -I$S -nostdinc 59 CPPFLAGS+= ${INCLUDES} ${IDENT} ${PARAM} -D_KERNEL -D_KERNEL_OPT 60 DEFCOPTS?= -O2 61 COPTS?= ${DEFCOPTS} 62 COPTS+= -std=gnu99 63 DBG= # might contain unwanted -Ofoo 64 DEFWARNINGS?= yes 65 .if (${DEFWARNINGS} == "yes") 66 . if !defined(NOGCCERROR) 67 CWARNFLAGS+= -Werror 68 . endif 69 CWARNFLAGS+= -Wall -Wno-main -Wno-format-zero-length -Wpointer-arith 70 CWARNFLAGS+= -Wmissing-prototypes -Wstrict-prototypes 71 CWARNFLAGS+= -Wswitch -Wshadow 72 CWARNFLAGS+= -Wcast-qual -Wwrite-strings 73 # Add -Wno-sign-compare. -Wsign-compare is included in -Wall as of GCC 3.3, 74 # but our sources aren't up for it yet. 75 CWARNFLAGS+= -Wno-sign-compare 76 . if ${HAVE_GCC} > 3 77 CWARNFLAGS+= -Wno-pointer-sign -Wno-attributes 78 . if ${MACHINE} == "i386" || ${MACHINE_ARCH} == "sparc64" || ${MACHINE} == "prep" 79 CWARNFLAGS+= -Wextra -Wno-unused-parameter 80 . endif 81 . endif 82 .endif 83 84 CFLAGS+= -ffreestanding -fno-zero-initialized-in-bss 85 CFLAGS+= ${CPUFLAGS} ${DEBUG} ${COPTS} ${CWARNFLAGS} 86 AFLAGS+= ${CPUFLAGS} -D_LOCORE -Wa,-fatal-warnings 87 88 # XXX 89 .if ${HAVE_GCC} > 3 90 CFLAGS+= -fno-strict-aliasing 91 .endif 92 93 .if ${USE_SSP:Uno} == "yes" 94 CFLAGS+=-fstack-protector -Wstack-protector --param ssp-buffer-size=1 95 LDFLAGS+=-fstack-protector -Wstack-protector --param ssp-buffer-size=1 96 .endif 97 98 # If we want the bpendtsleep: label in kern_synch.c, we need to use 99 # -fno-reorder-blocks. Don't make this a config(1) defflag without 100 # making sure this fragment remains valid. 101 .if ${HAVE_GCC} > 3 && !empty(${CFLAGS:M-DKERN_SYNCH_BPENDTSLEEP_LABEL}) 102 COPTS.kern_synch.c+= -fno-reorder-blocks 103 .endif 104 105 # Use the per-source COPTS variables to add -g to just those 106 # files that match the shell patterns given in ${DEBUGLIST} 107 # 108 .for i in ${DEBUGLIST} 109 . for j in ${CFILES:T:M$i.c} 110 COPTS.${j}+=-g 111 . endfor 112 .endfor 113 114 # Always compile subr_debug_info.c with debug informations. 115 # This allows gdb to use type informations. 116 # 117 COPTS.debugsyms.c+= -g 118 119 # compile rules: rules are named ${TYPE}_${SUFFIX} where TYPE is NORMAL or 120 # NOPROF and SUFFIX is the file suffix, capitalized (e.g. C for a .c file). 121 NORMAL_C?= @${_MKSHMSG} "compile ${.CURDIR:T}/${.TARGET}"; \ 122 ${_MKSHECHO}\ 123 ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $<; \ 124 ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $< 125 NOPROF_C?= @${_MKSHMSG} "compile ${.CURDIR:T}/${.TARGET}"; \ 126 ${_MKSHECHO}\ 127 ${CC} ${CFLAGS} ${CPPFLAGS} -c $<; \ 128 ${CC} ${CFLAGS} ${CPPFLAGS} -c $< 129 NORMAL_S?= @${_MKSHMSG} "compile ${.CURDIR:T}/${.TARGET}"; \ 130 ${_MKSHECHO}\ 131 ${CC} ${AFLAGS} ${CPPFLAGS} -c $<; \ 132 ${CC} ${AFLAGS} ${CPPFLAGS} -c $< 133 134 ## 135 ## (3) libkern and compat 136 ## 137 ## Set KERN_AS in the port Makefile to "obj" or "library". The 138 ## default is "library", as documented in $S/lib/libkern/Makefile.inc. 139 ## 140 141 ### find out what to use for libkern 142 .include "$S/lib/libkern/Makefile.inc" 143 .ifndef PROF 144 LIBKERN?= ${KERNLIB} 145 .else 146 LIBKERN?= ${KERNLIB_PROF} 147 .endif 148 149 LIBKERNLN?= ${KERNLIBLN} 150 151 ### find out what to use for libcompat 152 .include "$S/compat/common/Makefile.inc" 153 .ifndef PROF 154 SYSLIBCOMPAT?= ${COMPATLIB} 155 .else 156 SYSLIBCOMPAT?= ${COMPATLIB_PROF} 157 .endif 158 159 SYSLIBCOMPATLN?= ${COMPATLIBLN} 160 161 ## 162 ## (4) local objects, compile rules, and dependencies 163 ## 164 ## Each port should have a corresponding section with settings for 165 ## MD_CFILES, MD_SFILES, and MD_OBJS, along with build rules for same. 166 ## 167 MI_CFILES=devsw.c ioconf.c param.c 168 # the need for a MI_SFILES variable is dubitable at best 169 MI_OBJS=${MI_CFILES:S/.c/.o/} 170 171 param.c: $S/conf/param.c 172 ${_MKTARGET_CREATE} 173 rm -f param.c 174 cp $S/conf/param.c . 175 176 param.o: Makefile 177 178 .for _cfile in ${MI_CFILES} 179 ${_cfile:T:R}.o: ${_cfile} 180 ${NORMAL_C} 181 .endfor 182 183 ## 184 ## (5) link settings 185 ## 186 ## TEXTADDR (or LOADADDRESS), LINKFORMAT, and any EXTRA_LINKFLAGS must 187 ## be set in the port's Makefile. The port specific definitions for 188 ## LINKFLAGS_NORMAL and LINKFLAGS_DEBUG will added to the LINKFLAGS 189 ## depending on the value of DEBUG. 190 ## 191 # load lines for config "xxx" will be emitted as: 192 # xxx: ${SYSTEM_DEP} swapxxx.o 193 # ${SYSTEM_LD_HEAD} 194 # ${SYSTEM_LD} swapxxx.o 195 # ${SYSTEM_LD_TAIL} 196 SYSTEM_OBJ?= ${MD_OBJS} ${MI_OBJS} ${OBJS} ${SYSLIBCOMPAT} ${LIBKERN} 197 SYSTEM_DEP?= Makefile ${SYSTEM_OBJ:O} .gdbinit 198 SYSTEM_LD_HEAD?=@rm -f $@ 199 SYSTEM_LD?= @${_MKSHMSG} " link ${.CURDIR:T}/${.TARGET}"; \ 200 ${_MKSHECHO}\ 201 ${LD} -Map $@.map --cref ${LINKFLAGS} -o $@ '$${SYSTEM_OBJ}' '$${EXTRA_OBJ}' vers.o; \ 202 ${LD} -Map $@.map --cref ${LINKFLAGS} -o $@ ${SYSTEM_OBJ} ${EXTRA_OBJ} vers.o 203 SYSTEM_LD_TAIL?=@sed '/const char sccs/!d;s/.*@(.)//;s/\\.*//' vers.c; \ 204 ${SIZE} $@; chmod 755 $@ 205 206 TEXTADDR?= ${LOADADDRESS} # backwards compatibility 207 LINKTEXT?= ${TEXTADDR:C/.+/-Ttext &/} 208 LINKDATA?= ${DATAADDR:C/.+/-Tdata &/} 209 ENTRYPOINT?= start 210 LINKENTRY?= ${ENTRYPOINT:C/.+/-e &/} 211 LINKFLAGS?= ${LINKFORMAT} ${LINKTEXT} ${LINKDATA} ${LINKENTRY} \ 212 ${EXTRA_LINKFLAGS} 213 214 LINKFLAGS_DEBUG?= -X 215 SYSTEM_LD_TAIL_DEBUG?=; \ 216 echo mv -f $@ $@.gdb; mv -f $@ $@.gdb; \ 217 echo ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb; \ 218 ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb 219 LINKFLAGS_NORMAL?= -S 220 STRIPFLAGS?= -g 221 222 DEBUG?= 223 .if !empty(DEBUG:M-g*) 224 SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_DEBUG} 225 LINKFLAGS+= ${LINKFLAGS_DEBUG} 226 EXTRA_KERNELS+= ${KERNELS:@.KERNEL.@${.KERNEL.}.gdb@} 227 .elifndef PROF 228 LINKFLAGS+= ${LINKFLAGS_NORMAL} 229 .endif 230 231 SYSTEM_LD_TAIL+=; \ 232 if grep -q '^\#define.*SYMTAB_SPACE' opt_ddbparam.h; then \ 233 echo "${DBSYM} $@"; \ 234 ${DBSYM} $@; \ 235 fi 236 237 SYSTEM_LD_HEAD+=${SYSTEM_LD_HEAD_EXTRA} 238 SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_EXTRA} 239 240 ## 241 ## (6) port independent targets and dependencies: assym.h, vers.o 242 ## 243 .if !target(assym.h) 244 assym.h: ${GENASSYM_CONF} ${GENASSYM_EXTRAS} 245 ${_MKTARGET_CREATE} 246 cat ${GENASSYM_CONF} ${GENASSYM_EXTRAS} | \ 247 ${GENASSYM} -- ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} \ 248 > assym.h.tmp && \ 249 mv -f assym.h.tmp assym.h 250 ${MD_SFILES:C/\.[Ss]/.o/} ${SFILES:C/\.[Ss]/.o/}: assym.h 251 .endif 252 253 .if !target(vers.o) 254 newvers: vers.o 255 vers.o: ${SYSTEM_DEP} ${SYSTEM_SWAP_DEP} $S/conf/newvers.sh $S/conf/osrelease.sh 256 ${_MKMSG_CREATE} vers.c 257 ${HOST_SH} $S/conf/newvers.sh 258 ${_MKTARGET_COMPILE} 259 ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c vers.c 260 .endif 261 262 .if !target(config_time.h) 263 BUILDSYMLINKS+= config_time.src config_time.h 264 .endif 265 266 .if defined(MEMORY_DISK_IMAGE) 267 md_root_image.h: ${MEMORY_DISK_IMAGE} 268 ${_MKTARGET_CREATE} 269 ${TOOL_HEXDUMP} -v -e '"\t" 8/1 "0x%02x, " "\n"' ${.ALLSRC} > ${.TARGET} 270 271 # XXX This is only needed when building md_root.o 272 CPPFLAGS+= -DMEMORY_DISK_IMAGE 273 md_root.o: md_root_image.h 274 .endif 275 276 # depend on MEMORY_DISK_IMAGE configuration 277 md_root.o: Makefile 278 279 # depend on root or device configuration 280 autoconf.o conf.o: Makefile 281 282 # depend on network or filesystem configuration 283 uipc_proto.o vfs_conf.o: Makefile 284 285 # depend on maxusers and CPU configuration 286 assym.h machdep.o: Makefile 287 288 ## 289 ## (7) misc targets: install, clean(dir), depend(all), lint, links, tags, 290 ## cscope, mkid 291 ## 292 ## Any ports that have other stuff to be cleaned up should fill in 293 ## EXTRA_CLEAN. Some ports may want different settings for 294 ## KERNLINTFLAGS, MKDEP_CFLAGS, or MKDEP_AFLAGS. 295 ## 296 .if !target(__CLEANKERNEL) 297 __CLEANKERNEL: .USE 298 ${_MKMSG} "${.TARGET}ing the kernel objects" 299 rm -f ${KERNELS} eddep tags *.[io] *.ln [a-z]*.s vers.c \ 300 [Ee]rrs linterrs makelinks assym.h.tmp assym.h \ 301 ${EXTRA_KERNELS} ${EXTRA_CLEAN} 302 .endif 303 304 .if !target(kernelnames) 305 kernelnames: 306 @echo "${KERNELS} ${EXTRA_KERNELS}" 307 .endif 308 309 .if !target(__CLEANDEPEND) 310 __CLEANDEPEND: .USE 311 echo .depend ${DEPS} | xargs rm -f -- 312 .endif 313 314 # do not !target these, the kern and compat Makefiles augment them 315 cleandir distclean: __CLEANKERNEL __CLEANDEPEND 316 clean: __CLEANKERNEL 317 depend: .depend 318 dependall: depend .WAIT all 319 320 .if !target(.depend) 321 MKDEP_AFLAGS?= ${AFLAGS} 322 MKDEP_CFLAGS?= ${CFLAGS} 323 SSRCS=${MD_SFILES} ${SFILES} 324 CSRCS=${MD_CFILES} ${MI_CFILES} ${CFILES} 325 SRCS=${SSRCS} ${CSRCS} 326 DEPS= ${SRCS:T:O:u:R:S/$/.d/g} 327 328 .for _s in ${SSRCS} 329 ${_s:T:R}.d: ${_s} assym.h 330 ${_MKTARGET_CREATE} 331 ${MKDEP} -f ${.TARGET} -- ${MKDEP_AFLAGS} \ 332 ${CPPFLAGS} ${CPPFLAGS.${_s:T}} ${_s} 333 .endfor 334 .for _s in ${CSRCS} 335 ${_s:T:R}.d: ${_s} 336 ${_MKTARGET_CREATE} 337 ${MKDEP} -f ${.TARGET} -- ${MKDEP_CFLAGS} \ 338 ${CPPFLAGS} ${CPPFLAGS.${_s:T}} ${_s} 339 .endfor 340 341 assym.d: assym.h 342 ${_MKTARGET_CREATE} 343 cat ${GENASSYM_CONF} ${GENASSYM_EXTRAS} | \ 344 ${GENASSYM} -- ${MKDEP} -f assym.dep -- \ 345 ${CFLAGS} ${CPPFLAGS} 346 sed -e 's/.*\.o:.*\.c/assym.h:/' < assym.dep >${.TARGET} 347 rm -f assym.dep 348 349 DEPS+= assym.d 350 351 .depend: ${DEPS} 352 ${_MKTARGET_CREATE} 353 echo "${.ALLSRC}" | ${MKDEP} -D 354 .endif 355 356 .if !target(lint) 357 ALLSFILES?= ${MD_SFILES} ${SFILES} 358 LINTSTUBS?= ${ALLSFILES:T:R:C/^.*$/LintStub_&.c/g} 359 KERNLINTFLAGS?= -bcehnxzFS 360 NORMAL_LN?= ${LINT} ${KERNLINTFLAGS} ${CPPFLAGS:M-[IDU]*} -i $< 361 362 _lsrc=${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES} 363 LOBJS?= ${_lsrc:T:S/.c$/.ln/g} ${LIBKERNLN} ${SYSLIBCOMPATLN} 364 365 .for _sfile in ${ALLSFILES} 366 LintStub_${_sfile:T:R}.c: ${_sfile} assym.h 367 ${_MKTARGET_COMPILE} 368 ${CC} -E -C ${AFLAGS} ${CPPFLAGS} ${_sfile} | \ 369 awk -f $S/kern/genlintstub.awk >${.TARGET} 370 .endfor 371 372 .for _cfile in ${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES} 373 ${_cfile:T:R}.ln: ${_cfile} 374 ${_MKTARGET_COMPILE} 375 ${NORMAL_LN} 376 .endfor 377 378 lint: ${LOBJS} 379 ${LINT} ${KERNLINTFLAGS} ${CPPFLAGS:M-[IDU]*} ${LOBJS} 380 .endif 381 382 # Attempt to do a syntax-only compile of the entire kernel as one entity. 383 # Alas, bugs in the GCC C frontend prevent this from completely effective 384 # but information can be gleaned from the output. 385 syntax-only: ${CFILES} ${MD_CFILES} 386 ${CC} -fsyntax-only -combine ${CFLAGS} ${CPPFLAGS} \ 387 ${CFILES} ${MD_CFILES} 388 389 # List of kernel images that will be installed into the root file system. 390 # Some platforms may need to install more than one (e.g. a netbsd.aout file 391 # to be loaded directly by the firmware), so this can be overriden by them. 392 KERNIMAGES?= netbsd 393 394 .if !target(install) 395 # The install target can be redefined by putting a 396 # install-kernel-${MACHINE_NAME} target into /etc/mk.conf 397 MACHINE_NAME!= uname -n 398 install: install-kernel-${MACHINE_NAME} 399 .if !target(install-kernel-${MACHINE_NAME}) 400 install-kernel-${MACHINE_NAME}: 401 .for _K in ${KERNIMAGES} 402 rm -f ${DESTDIR}/o${_K} 403 ln ${DESTDIR}/${_K} ${DESTDIR}/o${_K} 404 cp ${_K} ${DESTDIR}/n${_K} 405 mv ${DESTDIR}/n${_K} ${DESTDIR}/${_K} 406 .endfor 407 .endif 408 .endif 409 410 .if !target(tags) 411 tags: 412 @echo "see $S/kern/Makefile for tags" 413 .endif 414 415 EXTRA_CLEAN+= cscope.out cscope.tmp 416 .if !target(cscope.out) 417 cscope.out: Makefile depend 418 ${_MKTARGET_CREATE} 419 @sed 's/[^:]*://;s/^ *//;s/ *\\ *$$//;' lib/kern/.depend | \ 420 tr -s ' ' '\n' | sed 's|^\([^.\\]\)|lib/kern/\1|;s|^../../||;' > \ 421 cscope.tmp 422 @sed 's/[^:]*://;s/^ *//;s/ *\\ *$$//;' lib/compat/.depend | \ 423 tr -s ' ' '\n' | sed 's|^\([^.\\]\)|lib/compat/\1|;s|^../../||;' >> \ 424 cscope.tmp 425 @echo ${SRCS} | cat - cscope.tmp | tr -s ' ' '\n' | sort -u | \ 426 ${CSCOPE} -k -i - -b `echo ${INCLUDES} | sed s/-nostdinc//` 427 # cscope doesn't write cscope.out if it's uptodate, so ensure 428 # make doesn't keep calling cscope when not needed. 429 @rm -f cscope.tmp; touch cscope.out 430 .endif 431 432 .if !target(cscope) 433 cscope: cscope.out 434 @${CSCOPE} -d 435 .endif 436 437 EXTRA_CLEAN+= ID 438 .if !target(mkid) 439 .PHONY: mkid 440 mkid: ID 441 442 ID: Makefile depend 443 ${_MKTARGET_CREATE} 444 @${MKID} `sed 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' lib/kern/.depend \ 445 lib/compat/.depend | tr ' ' '\n' | sed "s|^../../||" | sort -u` \ 446 `sed 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' .depend | tr ' ' '\n' \ 447 | sort -u` 448 449 .endif 450 451 .include "${S}/gdbscripts/Makefile.inc" 452 453 EXTRA_CLEAN+= .gdbinit 454 .gdbinit: Makefile ${S}/gdbscripts/Makefile.inc 455 ${_MKTARGET_CREATE} 456 rm -f .gdbinit 457 .for __gdbinit in ${SYS_GDBINIT} 458 echo "source ${S}/gdbscripts/${__gdbinit}" >> .gdbinit 459 .endfor 460 .if defined(GDBINIT) && !empty(GDBINIT) 461 .for __gdbinit in ${GDBINIT} 462 echo "source ${__gdbinit}" >> .gdbinit 463 .endfor 464 .endif 465 466 # The following files use alloca(3) or variable array allocations. 467 # Their full name is noted as documentation. 468 VARSTACK=dev/cgd.c kern/uipc_socket.c miscfs/genfs/genfs_vnops.c \ 469 nfs/nfs_bio.c uvm/uvm_bio.c \ 470 uvm/uvm_pager.c dev/ic/aic7xxx.c dev/ic/aic79xx.c arch/xen/i386/gdt.c \ 471 dev/ofw/ofw_subr.c 472 473 . if ${HAVE_GCC} > 3 474 .for __varstack in ${VARSTACK} 475 COPTS.${__varstack:T} += -Wno-stack-protector 476 .endfor 477 .endif 478 479 AFLAGS+= ${AOPTS.${.IMPSRC:T}} 480 CFLAGS+= ${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}} 481 CPPFLAGS+= ${CPPFLAGS.${.IMPSRC:T}} 482 CWARNFLAGS+= ${CWARNFLAGS.${.IMPSRC:T}} 483 484 .include <bsd.files.mk> 485 486 ## 487 ## the end 488 ## 489
Indexes created Fri Oct 31 11:10:07 GMT 2025