Makefile.kern.inc revision 1.117
1 # $NetBSD: Makefile.kern.inc,v 1.117 2008/10/19 22:05:22 apb 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 CWARNFLAGS+= -Wno-unreachable-code 74 # Add -Wno-sign-compare. -Wsign-compare is included in -Wall as of GCC 3.3, 75 # but our sources aren't up for it yet. 76 CWARNFLAGS+= -Wno-sign-compare 77 . if (defined(HAVE_GCC) && ${HAVE_GCC} > 3) || defined(HAVE_PCC) 78 CWARNFLAGS+= -Wno-pointer-sign -Wno-attributes 79 . if ${MACHINE} == "i386" || ${MACHINE_ARCH} == "x86_64" || \ 80 ${MACHINE_ARCH} == "sparc64" || ${MACHINE} == "prep" 81 CWARNFLAGS+= -Wextra -Wno-unused-parameter 82 . endif 83 . endif 84 .endif 85 86 CFLAGS+= -ffreestanding -fno-zero-initialized-in-bss 87 CFLAGS+= ${DEBUG} ${COPTS} 88 AFLAGS+= -D_LOCORE -Wa,-fatal-warnings 89 90 # XXX 91 .if defined(HAVE_GCC) && ${HAVE_GCC} > 3 92 CFLAGS+= -fno-strict-aliasing 93 .endif 94 95 .if ${USE_SSP:Uno} == "yes" 96 CFLAGS+=-fstack-protector -Wstack-protector --param ssp-buffer-size=1 97 LDFLAGS+=-fstack-protector -Wstack-protector --param ssp-buffer-size=1 98 .endif 99 100 # If we want the bpendtsleep: label in kern_synch.c, we need to use 101 # -fno-reorder-blocks. Don't make this a config(1) defflag without 102 # making sure this fragment remains valid. 103 .if defined(HAVE_GCC) && ${HAVE_GCC} > 3 && \ 104 !empty(${CFLAGS:M-DKERN_SYNCH_BPENDTSLEEP_LABEL}) 105 COPTS.kern_synch.c+= -fno-reorder-blocks 106 .endif 107 108 # Use the per-source COPTS variables to add -g to just those 109 # files that match the shell patterns given in ${DEBUGLIST} 110 # 111 .for i in ${DEBUGLIST} 112 . for j in ${CFILES:T:M$i.c} 113 COPTS.${j}+=-g 114 . endfor 115 .endfor 116 117 # Always compile subr_debug_info.c with debug informations. 118 # This allows gdb to use type informations. 119 # 120 COPTS.debugsyms.c+= -g 121 122 # compile rules: rules are named ${TYPE}_${SUFFIX} where TYPE is NORMAL or 123 # NOPROF and SUFFIX is the file suffix, capitalized (e.g. C for a .c file). 124 NORMAL_C?= @${_MKSHMSG} "compile ${.CURDIR:T}/${.TARGET}"; \ 125 ${_MKSHECHO}\ 126 ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $<; \ 127 ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $< 128 NOPROF_C?= @${_MKSHMSG} "compile ${.CURDIR:T}/${.TARGET}"; \ 129 ${_MKSHECHO}\ 130 ${CC} ${CFLAGS} ${CPPFLAGS} -c $<; \ 131 ${CC} ${CFLAGS} ${CPPFLAGS} -c $< 132 NORMAL_S?= @${_MKSHMSG} "compile ${.CURDIR:T}/${.TARGET}"; \ 133 ${_MKSHECHO}\ 134 ${CC} ${AFLAGS} ${CPPFLAGS} -c $<; \ 135 ${CC} ${AFLAGS} ${CPPFLAGS} -c $< 136 137 ## 138 ## (3) libkern and compat 139 ## 140 ## Set KERN_AS in the port Makefile to "obj" or "library". The 141 ## default is "library", as documented in $S/lib/libkern/Makefile.inc. 142 ## 143 144 ### find out what to use for libkern 145 .include "$S/lib/libkern/Makefile.inc" 146 .ifndef PROF 147 LIBKERN?= ${KERNLIB} 148 .else 149 LIBKERN?= ${KERNLIB_PROF} 150 .endif 151 152 LIBKERNLN?= ${KERNLIBLN} 153 154 ### find out what to use for libcompat 155 .include "$S/compat/common/Makefile.inc" 156 .ifndef PROF 157 SYSLIBCOMPAT?= ${COMPATLIB} 158 .else 159 SYSLIBCOMPAT?= ${COMPATLIB_PROF} 160 .endif 161 162 SYSLIBCOMPATLN?= ${COMPATLIBLN} 163 164 ## 165 ## (4) local objects, compile rules, and dependencies 166 ## 167 ## Each port should have a corresponding section with settings for 168 ## MD_CFILES, MD_SFILES, and MD_OBJS, along with build rules for same. 169 ## 170 MI_CFILES=devsw.c ioconf.c param.c 171 # the need for a MI_SFILES variable is dubitable at best 172 MI_OBJS=${MI_CFILES:S/.c/.o/} 173 174 param.c: $S/conf/param.c 175 ${_MKTARGET_CREATE} 176 rm -f param.c 177 cp $S/conf/param.c . 178 179 param.o: Makefile 180 181 .for _cfile in ${MI_CFILES} 182 ${_cfile:T:R}.o: ${_cfile} 183 ${NORMAL_C} 184 .endfor 185 186 ## 187 ## (5) link settings 188 ## 189 ## TEXTADDR (or LOADADDRESS), LINKFORMAT, and any EXTRA_LINKFLAGS must 190 ## be set in the port's Makefile. The port specific definitions for 191 ## LINKFLAGS_NORMAL and LINKFLAGS_DEBUG will added to the LINKFLAGS 192 ## depending on the value of DEBUG. 193 ## 194 # load lines for config "xxx" will be emitted as: 195 # xxx: ${SYSTEM_DEP} swapxxx.o 196 # ${SYSTEM_LD_HEAD} 197 # ${SYSTEM_LD} swapxxx.o 198 # ${SYSTEM_LD_TAIL} 199 SYSTEM_OBJ?= ${MD_OBJS} ${MI_OBJS} ${OBJS} ${SYSLIBCOMPAT} ${LIBKERN} 200 SYSTEM_DEP?= Makefile ${SYSTEM_OBJ:O} .gdbinit 201 SYSTEM_LD_HEAD?=@rm -f $@ 202 SYSTEM_LD?= @${_MKSHMSG} " link ${.CURDIR:T}/${.TARGET}"; \ 203 ${_MKSHECHO}\ 204 ${LD} -Map $@.map --cref ${LINKFLAGS} -o $@ '$${SYSTEM_OBJ}' '$${EXTRA_OBJ}' vers.o; \ 205 ${LD} -Map $@.map --cref ${LINKFLAGS} -o $@ ${SYSTEM_OBJ} ${EXTRA_OBJ} vers.o 206 SYSTEM_LD_TAIL?=@sed '/const char sccs/!d;s/.*@(.)//;s/\\.*//' vers.c; \ 207 ${SIZE} $@; chmod 755 $@ 208 209 TEXTADDR?= ${LOADADDRESS} # backwards compatibility 210 LINKTEXT?= ${TEXTADDR:C/.+/-Ttext &/} 211 LINKDATA?= ${DATAADDR:C/.+/-Tdata &/} 212 ENTRYPOINT?= start 213 LINKENTRY?= ${ENTRYPOINT:C/.+/-e &/} 214 LINKFLAGS?= ${LINKFORMAT} ${LINKTEXT} ${LINKDATA} ${LINKENTRY} \ 215 ${EXTRA_LINKFLAGS} 216 217 LINKFLAGS_DEBUG?= -X 218 SYSTEM_LD_TAIL_DEBUG?=; \ 219 echo mv -f $@ $@.gdb; mv -f $@ $@.gdb; \ 220 echo ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb; \ 221 ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb 222 LINKFLAGS_NORMAL?= -S 223 STRIPFLAGS?= -g 224 225 DEBUG?= 226 .if !empty(DEBUG:M-g*) 227 SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_DEBUG} 228 LINKFLAGS+= ${LINKFLAGS_DEBUG} 229 EXTRA_KERNELS+= ${KERNELS:@.KERNEL.@${.KERNEL.}.gdb@} 230 .elifndef PROF 231 LINKFLAGS+= ${LINKFLAGS_NORMAL} 232 .endif 233 234 SYSTEM_LD_TAIL+=; \ 235 if grep -q '^\#define.*SYMTAB_SPACE' opt_ddbparam.h; then \ 236 echo "${DBSYM} $@"; \ 237 ${DBSYM} $@; \ 238 fi 239 240 SYSTEM_LD_HEAD+=${SYSTEM_LD_HEAD_EXTRA} 241 SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_EXTRA} 242 243 ## 244 ## (6) port independent targets and dependencies: assym.h, vers.o 245 ## 246 .if !target(assym.h) 247 assym.h: ${GENASSYM_CONF} ${GENASSYM_EXTRAS} 248 ${_MKTARGET_CREATE} 249 cat ${GENASSYM_CONF} ${GENASSYM_EXTRAS} | \ 250 ${GENASSYM} -- ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} \ 251 > assym.h.tmp && \ 252 mv -f assym.h.tmp assym.h 253 ${MD_SFILES:C/\.[Ss]/.o/} ${SFILES:C/\.[Ss]/.o/}: assym.h 254 .endif 255 256 .if !target(vers.o) 257 newvers: vers.o 258 vers.o: ${SYSTEM_DEP} ${SYSTEM_SWAP_DEP} $S/conf/newvers.sh $S/conf/osrelease.sh 259 ${_MKMSG_CREATE} vers.c 260 ${HOST_SH} $S/conf/newvers.sh 261 ${_MKTARGET_COMPILE} 262 ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c vers.c 263 .endif 264 265 .if !target(config_time.h) 266 BUILDSYMLINKS+= config_time.src config_time.h 267 .endif 268 269 .if defined(MEMORY_DISK_IMAGE) 270 md_root_image.h: ${MEMORY_DISK_IMAGE} 271 ${_MKTARGET_CREATE} 272 ${TOOL_HEXDUMP} -v -e '"\t" 8/1 "0x%02x, " "\n"' ${.ALLSRC} > ${.TARGET} 273 274 # XXX This is only needed when building md_root.o 275 CPPFLAGS+= -DMEMORY_DISK_IMAGE 276 md_root.o: md_root_image.h 277 .endif 278 279 # depend on MEMORY_DISK_IMAGE configuration 280 md_root.o: Makefile 281 282 # depend on root or device configuration 283 autoconf.o conf.o: Makefile 284 285 # depend on network or filesystem configuration 286 uipc_proto.o vfs_conf.o: Makefile 287 288 # depend on maxusers and CPU configuration 289 assym.h machdep.o: Makefile 290 291 ## 292 ## (7) misc targets: install, clean(dir), depend(all), lint, links, tags, 293 ## cscope, mkid 294 ## 295 ## Any ports that have other stuff to be cleaned up should fill in 296 ## EXTRA_CLEAN. Some ports may want different settings for 297 ## KERNLINTFLAGS, MKDEP_CFLAGS, or MKDEP_AFLAGS. 298 ## 299 .if !target(__CLEANKERNEL) 300 __CLEANKERNEL: .USE 301 ${_MKMSG} "${.TARGET}ing the kernel objects" 302 rm -f ${KERNELS} eddep tags *.[io] *.ln [a-z]*.s vers.c \ 303 [Ee]rrs linterrs makelinks assym.h.tmp assym.h \ 304 ${EXTRA_KERNELS} ${EXTRA_CLEAN} 305 .endif 306 307 .if !target(kernelnames) 308 kernelnames: 309 @echo "${KERNELS} ${EXTRA_KERNELS}" 310 .endif 311 312 .if !target(__CLEANDEPEND) 313 __CLEANDEPEND: .USE 314 echo .depend ${DEPS} | xargs rm -f -- 315 .endif 316 317 # do not !target these, the kern and compat Makefiles augment them 318 cleandir distclean: __CLEANKERNEL __CLEANDEPEND 319 clean: __CLEANKERNEL 320 depend: .depend 321 dependall: depend .WAIT all 322 323 .if !target(.depend) 324 MKDEP_AFLAGS?= ${AFLAGS} 325 MKDEP_CFLAGS?= ${CFLAGS} 326 SSRCS=${MD_SFILES} ${SFILES} 327 CSRCS=${MD_CFILES} ${MI_CFILES} ${CFILES} 328 SRCS=${SSRCS} ${CSRCS} 329 DEPS= ${SRCS:T:O:u:R:S/$/.d/g} 330 331 .for _s in ${SSRCS} 332 ${_s:T:R}.d: ${_s} assym.h 333 ${_MKTARGET_CREATE} 334 ${MKDEP} -f ${.TARGET} -- ${MKDEP_AFLAGS} \ 335 ${CPPFLAGS} ${CPPFLAGS.${_s:T}} ${_s} 336 .endfor 337 .for _s in ${CSRCS} 338 ${_s:T:R}.d: ${_s} 339 ${_MKTARGET_CREATE} 340 ${MKDEP} -f ${.TARGET} -- ${MKDEP_CFLAGS} \ 341 ${CPPFLAGS} ${CPPFLAGS.${_s:T}} ${_s} 342 .endfor 343 344 assym.d: assym.h 345 ${_MKTARGET_CREATE} 346 cat ${GENASSYM_CONF} ${GENASSYM_EXTRAS} | \ 347 ${GENASSYM} -- ${MKDEP} -f assym.dep -- \ 348 ${CFLAGS} ${CPPFLAGS} 349 sed -e 's/.*\.o:.*\.c/assym.h:/' < assym.dep >${.TARGET} 350 rm -f assym.dep 351 352 DEPS+= assym.d 353 354 .depend: ${DEPS} 355 ${_MKTARGET_CREATE} 356 echo "${.ALLSRC}" | ${MKDEP} -D 357 .endif 358 359 .if !target(lint) 360 ALLSFILES?= ${MD_SFILES} ${SFILES} 361 LINTSTUBS?= ${ALLSFILES:T:R:C/^.*$/LintStub_&.c/g} 362 KERNLINTFLAGS?= -bcehnxzFS 363 NORMAL_LN?= ${LINT} ${KERNLINTFLAGS} ${CPPFLAGS:M-[IDU]*} -i $< 364 365 _lsrc=${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES} 366 LOBJS?= ${_lsrc:T:S/.c$/.ln/g} ${LIBKERNLN} ${SYSLIBCOMPATLN} 367 368 .for _sfile in ${ALLSFILES} 369 LintStub_${_sfile:T:R}.c: ${_sfile} assym.h 370 ${_MKTARGET_COMPILE} 371 ${CC} -E -C ${AFLAGS} ${CPPFLAGS} ${_sfile} | \ 372 ${TOOL_AWK} -f $S/kern/genlintstub.awk >${.TARGET} 373 .endfor 374 375 .for _cfile in ${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES} 376 ${_cfile:T:R}.ln: ${_cfile} 377 ${_MKTARGET_COMPILE} 378 ${NORMAL_LN} 379 .endfor 380 381 lint: ${LOBJS} 382 ${LINT} ${KERNLINTFLAGS} ${CPPFLAGS:M-[IDU]*} ${LOBJS} 383 .endif 384 385 # Attempt to do a syntax-only compile of the entire kernel as one entity. 386 # Alas, bugs in the GCC C frontend prevent this from completely effective 387 # but information can be gleaned from the output. 388 syntax-only: ${CFILES} ${MD_CFILES} 389 ${CC} -fsyntax-only -combine ${CFLAGS} ${CPPFLAGS} \ 390 ${CFILES} ${MD_CFILES} 391 392 # List of kernel images that will be installed into the root file system. 393 # Some platforms may need to install more than one (e.g. a netbsd.aout file 394 # to be loaded directly by the firmware), so this can be overriden by them. 395 KERNIMAGES?= netbsd 396 397 .if !target(install) 398 # The install target can be redefined by putting a 399 # install-kernel-${MACHINE_NAME} target into /etc/mk.conf 400 MACHINE_NAME!= uname -n 401 install: install-kernel-${MACHINE_NAME} 402 .if !target(install-kernel-${MACHINE_NAME}) 403 install-kernel-${MACHINE_NAME}: 404 .for _K in ${KERNIMAGES} 405 rm -f ${DESTDIR}/o${_K} 406 ln ${DESTDIR}/${_K} ${DESTDIR}/o${_K} 407 cp ${_K} ${DESTDIR}/n${_K} 408 mv ${DESTDIR}/n${_K} ${DESTDIR}/${_K} 409 .endfor 410 .endif 411 .endif 412 413 .if !target(tags) 414 tags: 415 @echo "see $S/kern/Makefile for tags" 416 .endif 417 418 EXTRA_CLEAN+= cscope.out cscope.tmp 419 .if !target(cscope.out) 420 cscope.out: Makefile depend 421 ${_MKTARGET_CREATE} 422 @sed 's/[^:]*://;s/^ *//;s/ *\\ *$$//;' lib/kern/.depend | \ 423 tr -s ' ' '\n' | sed 's|^\([^.\\]\)|lib/kern/\1|;s|^../../||;' > \ 424 cscope.tmp 425 @sed 's/[^:]*://;s/^ *//;s/ *\\ *$$//;' lib/compat/.depend | \ 426 tr -s ' ' '\n' | sed 's|^\([^.\\]\)|lib/compat/\1|;s|^../../||;' >> \ 427 cscope.tmp 428 @echo ${SRCS} | cat - cscope.tmp | tr -s ' ' '\n' | sort -u | \ 429 ${CSCOPE} -k -i - -b `echo ${INCLUDES} | sed s/-nostdinc//` 430 # cscope doesn't write cscope.out if it's uptodate, so ensure 431 # make doesn't keep calling cscope when not needed. 432 @rm -f cscope.tmp; touch cscope.out 433 .endif 434 435 .if !target(cscope) 436 cscope: cscope.out 437 @${CSCOPE} -d 438 .endif 439 440 EXTRA_CLEAN+= ID 441 .if !target(mkid) 442 .PHONY: mkid 443 mkid: ID 444 445 ID: Makefile depend 446 ${_MKTARGET_CREATE} 447 @${MKID} `sed 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' lib/kern/.depend \ 448 lib/compat/.depend | tr ' ' '\n' | sed "s|^../../||" | sort -u` \ 449 `sed 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' .depend | tr ' ' '\n' \ 450 | sort -u` 451 452 .endif 453 454 .include "${S}/gdbscripts/Makefile.inc" 455 456 EXTRA_CLEAN+= .gdbinit 457 .gdbinit: Makefile ${S}/gdbscripts/Makefile.inc 458 ${_MKTARGET_CREATE} 459 rm -f .gdbinit 460 .for __gdbinit in ${SYS_GDBINIT} 461 echo "source ${S}/gdbscripts/${__gdbinit}" >> .gdbinit 462 .endfor 463 .if defined(GDBINIT) && !empty(GDBINIT) 464 .for __gdbinit in ${GDBINIT} 465 echo "source ${__gdbinit}" >> .gdbinit 466 .endfor 467 .endif 468 469 # The following files use alloca(3) or variable array allocations. 470 # Their full name is noted as documentation. 471 VARSTACK=dev/cgd.c kern/uipc_socket.c miscfs/genfs/genfs_vnops.c \ 472 nfs/nfs_bio.c uvm/uvm_bio.c \ 473 uvm/uvm_pager.c dev/ic/aic7xxx.c dev/ic/aic79xx.c arch/xen/i386/gdt.c \ 474 dev/ofw/ofw_subr.c 475 476 . if (defined(HAVE_GCC) && ${HAVE_GCC} > 3) || defined(HAVE_PCC) 477 .for __varstack in ${VARSTACK} 478 COPTS.${__varstack:T} += -Wno-stack-protector 479 .endfor 480 .endif 481 482 AFLAGS+= ${AOPTS.${.IMPSRC:T}} 483 CFLAGS+= ${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}} 484 CPPFLAGS+= ${CPPFLAGS.${.IMPSRC:T}} 485 CWARNFLAGS+= ${CWARNFLAGS.${.IMPSRC:T}} 486 487 .include <bsd.files.mk> 488 489 ## 490 ## the end 491 ## 492
Indexes created Sat Nov 01 05:10:12 GMT 2025