Makefile.kern.inc revision 1.113
1 # $NetBSD: Makefile.kern.inc,v 1.113 2008/06/21 01:00:43 gmcgarry 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 ${HAVE_GCC} > 3 78 CWARNFLAGS+= -Wno-pointer-sign -Wno-attributes 79 . if ${MACHINE} == "i386" || ${MACHINE_ARCH} == "sparc64" || ${MACHINE} == "prep" 80 CWARNFLAGS+= -Wextra -Wno-unused-parameter 81 . endif 82 . endif 83 .endif 84 85 CFLAGS+= -ffreestanding -fno-zero-initialized-in-bss 86 CFLAGS+= ${CPUFLAGS} ${DEBUG} ${COPTS} ${CWARNFLAGS} 87 AFLAGS+= ${CPUFLAGS} -D_LOCORE -Wa,-fatal-warnings 88 89 # XXX 90 .if ${HAVE_GCC} > 3 91 CFLAGS+= -fno-strict-aliasing 92 .endif 93 94 .if ${USE_SSP:Uno} == "yes" 95 CFLAGS+=-fstack-protector -Wstack-protector --param ssp-buffer-size=1 96 LDFLAGS+=-fstack-protector -Wstack-protector --param ssp-buffer-size=1 97 .endif 98 99 # If we want the bpendtsleep: label in kern_synch.c, we need to use 100 # -fno-reorder-blocks. Don't make this a config(1) defflag without 101 # making sure this fragment remains valid. 102 .if ${HAVE_GCC} > 3 && !empty(${CFLAGS:M-DKERN_SYNCH_BPENDTSLEEP_LABEL}) 103 COPTS.kern_synch.c+= -fno-reorder-blocks 104 .endif 105 106 # Use the per-source COPTS variables to add -g to just those 107 # files that match the shell patterns given in ${DEBUGLIST} 108 # 109 .for i in ${DEBUGLIST} 110 . for j in ${CFILES:T:M$i.c} 111 COPTS.${j}+=-g 112 . endfor 113 .endfor 114 115 # Always compile subr_debug_info.c with debug informations. 116 # This allows gdb to use type informations. 117 # 118 COPTS.debugsyms.c+= -g 119 120 # compile rules: rules are named ${TYPE}_${SUFFIX} where TYPE is NORMAL or 121 # NOPROF and SUFFIX is the file suffix, capitalized (e.g. C for a .c file). 122 NORMAL_C?= @${_MKSHMSG} "compile ${.CURDIR:T}/${.TARGET}"; \ 123 ${_MKSHECHO}\ 124 ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $<; \ 125 ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $< 126 NOPROF_C?= @${_MKSHMSG} "compile ${.CURDIR:T}/${.TARGET}"; \ 127 ${_MKSHECHO}\ 128 ${CC} ${CFLAGS} ${CPPFLAGS} -c $<; \ 129 ${CC} ${CFLAGS} ${CPPFLAGS} -c $< 130 NORMAL_S?= @${_MKSHMSG} "compile ${.CURDIR:T}/${.TARGET}"; \ 131 ${_MKSHECHO}\ 132 ${CC} ${AFLAGS} ${CPPFLAGS} -c $<; \ 133 ${CC} ${AFLAGS} ${CPPFLAGS} -c $< 134 135 ## 136 ## (3) libkern and compat 137 ## 138 ## Set KERN_AS in the port Makefile to "obj" or "library". The 139 ## default is "library", as documented in $S/lib/libkern/Makefile.inc. 140 ## 141 142 ### find out what to use for libkern 143 .include "$S/lib/libkern/Makefile.inc" 144 .ifndef PROF 145 LIBKERN?= ${KERNLIB} 146 .else 147 LIBKERN?= ${KERNLIB_PROF} 148 .endif 149 150 LIBKERNLN?= ${KERNLIBLN} 151 152 ### find out what to use for libcompat 153 .include "$S/compat/common/Makefile.inc" 154 .ifndef PROF 155 SYSLIBCOMPAT?= ${COMPATLIB} 156 .else 157 SYSLIBCOMPAT?= ${COMPATLIB_PROF} 158 .endif 159 160 SYSLIBCOMPATLN?= ${COMPATLIBLN} 161 162 ## 163 ## (4) local objects, compile rules, and dependencies 164 ## 165 ## Each port should have a corresponding section with settings for 166 ## MD_CFILES, MD_SFILES, and MD_OBJS, along with build rules for same. 167 ## 168 MI_CFILES=devsw.c ioconf.c param.c 169 # the need for a MI_SFILES variable is dubitable at best 170 MI_OBJS=${MI_CFILES:S/.c/.o/} 171 172 param.c: $S/conf/param.c 173 ${_MKTARGET_CREATE} 174 rm -f param.c 175 cp $S/conf/param.c . 176 177 param.o: Makefile 178 179 .for _cfile in ${MI_CFILES} 180 ${_cfile:T:R}.o: ${_cfile} 181 ${NORMAL_C} 182 .endfor 183 184 ## 185 ## (5) link settings 186 ## 187 ## TEXTADDR (or LOADADDRESS), LINKFORMAT, and any EXTRA_LINKFLAGS must 188 ## be set in the port's Makefile. The port specific definitions for 189 ## LINKFLAGS_NORMAL and LINKFLAGS_DEBUG will added to the LINKFLAGS 190 ## depending on the value of DEBUG. 191 ## 192 # load lines for config "xxx" will be emitted as: 193 # xxx: ${SYSTEM_DEP} swapxxx.o 194 # ${SYSTEM_LD_HEAD} 195 # ${SYSTEM_LD} swapxxx.o 196 # ${SYSTEM_LD_TAIL} 197 SYSTEM_OBJ?= ${MD_OBJS} ${MI_OBJS} ${OBJS} ${SYSLIBCOMPAT} ${LIBKERN} 198 SYSTEM_DEP?= Makefile ${SYSTEM_OBJ:O} .gdbinit 199 SYSTEM_LD_HEAD?=@rm -f $@ 200 SYSTEM_LD?= @${_MKSHMSG} " link ${.CURDIR:T}/${.TARGET}"; \ 201 ${_MKSHECHO}\ 202 ${LD} -Map $@.map --cref ${LINKFLAGS} -o $@ '$${SYSTEM_OBJ}' '$${EXTRA_OBJ}' vers.o; \ 203 ${LD} -Map $@.map --cref ${LINKFLAGS} -o $@ ${SYSTEM_OBJ} ${EXTRA_OBJ} vers.o 204 SYSTEM_LD_TAIL?=@sed '/const char sccs/!d;s/.*@(.)//;s/\\.*//' vers.c; \ 205 ${SIZE} $@; chmod 755 $@ 206 207 TEXTADDR?= ${LOADADDRESS} # backwards compatibility 208 LINKTEXT?= ${TEXTADDR:C/.+/-Ttext &/} 209 LINKDATA?= ${DATAADDR:C/.+/-Tdata &/} 210 ENTRYPOINT?= start 211 LINKENTRY?= ${ENTRYPOINT:C/.+/-e &/} 212 LINKFLAGS?= ${LINKFORMAT} ${LINKTEXT} ${LINKDATA} ${LINKENTRY} \ 213 ${EXTRA_LINKFLAGS} 214 215 LINKFLAGS_DEBUG?= -X 216 SYSTEM_LD_TAIL_DEBUG?=; \ 217 echo mv -f $@ $@.gdb; mv -f $@ $@.gdb; \ 218 echo ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb; \ 219 ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb 220 LINKFLAGS_NORMAL?= -S 221 STRIPFLAGS?= -g 222 223 DEBUG?= 224 .if !empty(DEBUG:M-g*) 225 SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_DEBUG} 226 LINKFLAGS+= ${LINKFLAGS_DEBUG} 227 EXTRA_KERNELS+= ${KERNELS:@.KERNEL.@${.KERNEL.}.gdb@} 228 .elifndef PROF 229 LINKFLAGS+= ${LINKFLAGS_NORMAL} 230 .endif 231 232 SYSTEM_LD_TAIL+=; \ 233 if grep -q '^\#define.*SYMTAB_SPACE' opt_ddbparam.h; then \ 234 echo "${DBSYM} $@"; \ 235 ${DBSYM} $@; \ 236 fi 237 238 SYSTEM_LD_HEAD+=${SYSTEM_LD_HEAD_EXTRA} 239 SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_EXTRA} 240 241 ## 242 ## (6) port independent targets and dependencies: assym.h, vers.o 243 ## 244 .if !target(assym.h) 245 assym.h: ${GENASSYM_CONF} ${GENASSYM_EXTRAS} 246 ${_MKTARGET_CREATE} 247 cat ${GENASSYM_CONF} ${GENASSYM_EXTRAS} | \ 248 ${GENASSYM} -- ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} \ 249 > assym.h.tmp && \ 250 mv -f assym.h.tmp assym.h 251 ${MD_SFILES:C/\.[Ss]/.o/} ${SFILES:C/\.[Ss]/.o/}: assym.h 252 .endif 253 254 .if !target(vers.o) 255 newvers: vers.o 256 vers.o: ${SYSTEM_DEP} ${SYSTEM_SWAP_DEP} $S/conf/newvers.sh $S/conf/osrelease.sh 257 ${_MKMSG_CREATE} vers.c 258 ${HOST_SH} $S/conf/newvers.sh 259 ${_MKTARGET_COMPILE} 260 ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c vers.c 261 .endif 262 263 .if !target(config_time.h) 264 BUILDSYMLINKS+= config_time.src config_time.h 265 .endif 266 267 .if defined(MEMORY_DISK_IMAGE) 268 md_root_image.h: ${MEMORY_DISK_IMAGE} 269 ${_MKTARGET_CREATE} 270 ${TOOL_HEXDUMP} -v -e '"\t" 8/1 "0x%02x, " "\n"' ${.ALLSRC} > ${.TARGET} 271 272 # XXX This is only needed when building md_root.o 273 CPPFLAGS+= -DMEMORY_DISK_IMAGE 274 md_root.o: md_root_image.h 275 .endif 276 277 # depend on MEMORY_DISK_IMAGE configuration 278 md_root.o: Makefile 279 280 # depend on root or device configuration 281 autoconf.o conf.o: Makefile 282 283 # depend on network or filesystem configuration 284 uipc_proto.o vfs_conf.o: Makefile 285 286 # depend on maxusers and CPU configuration 287 assym.h machdep.o: Makefile 288 289 ## 290 ## (7) misc targets: install, clean(dir), depend(all), lint, links, tags, 291 ## cscope, mkid 292 ## 293 ## Any ports that have other stuff to be cleaned up should fill in 294 ## EXTRA_CLEAN. Some ports may want different settings for 295 ## KERNLINTFLAGS, MKDEP_CFLAGS, or MKDEP_AFLAGS. 296 ## 297 .if !target(__CLEANKERNEL) 298 __CLEANKERNEL: .USE 299 ${_MKMSG} "${.TARGET}ing the kernel objects" 300 rm -f ${KERNELS} eddep tags *.[io] *.ln [a-z]*.s vers.c \ 301 [Ee]rrs linterrs makelinks assym.h.tmp assym.h \ 302 ${EXTRA_KERNELS} ${EXTRA_CLEAN} 303 .endif 304 305 .if !target(kernelnames) 306 kernelnames: 307 @echo "${KERNELS} ${EXTRA_KERNELS}" 308 .endif 309 310 .if !target(__CLEANDEPEND) 311 __CLEANDEPEND: .USE 312 echo .depend ${DEPS} | xargs rm -f -- 313 .endif 314 315 # do not !target these, the kern and compat Makefiles augment them 316 cleandir distclean: __CLEANKERNEL __CLEANDEPEND 317 clean: __CLEANKERNEL 318 depend: .depend 319 dependall: depend .WAIT all 320 321 .if !target(.depend) 322 MKDEP_AFLAGS?= ${AFLAGS} 323 MKDEP_CFLAGS?= ${CFLAGS} 324 SSRCS=${MD_SFILES} ${SFILES} 325 CSRCS=${MD_CFILES} ${MI_CFILES} ${CFILES} 326 SRCS=${SSRCS} ${CSRCS} 327 DEPS= ${SRCS:T:O:u:R:S/$/.d/g} 328 329 .for _s in ${SSRCS} 330 ${_s:T:R}.d: ${_s} assym.h 331 ${_MKTARGET_CREATE} 332 ${MKDEP} -f ${.TARGET} -- ${MKDEP_AFLAGS} \ 333 ${CPPFLAGS} ${CPPFLAGS.${_s:T}} ${_s} 334 .endfor 335 .for _s in ${CSRCS} 336 ${_s:T:R}.d: ${_s} 337 ${_MKTARGET_CREATE} 338 ${MKDEP} -f ${.TARGET} -- ${MKDEP_CFLAGS} \ 339 ${CPPFLAGS} ${CPPFLAGS.${_s:T}} ${_s} 340 .endfor 341 342 assym.d: assym.h 343 ${_MKTARGET_CREATE} 344 cat ${GENASSYM_CONF} ${GENASSYM_EXTRAS} | \ 345 ${GENASSYM} -- ${MKDEP} -f assym.dep -- \ 346 ${CFLAGS} ${CPPFLAGS} 347 sed -e 's/.*\.o:.*\.c/assym.h:/' < assym.dep >${.TARGET} 348 rm -f assym.dep 349 350 DEPS+= assym.d 351 352 .depend: ${DEPS} 353 ${_MKTARGET_CREATE} 354 echo "${.ALLSRC}" | ${MKDEP} -D 355 .endif 356 357 .if !target(lint) 358 ALLSFILES?= ${MD_SFILES} ${SFILES} 359 LINTSTUBS?= ${ALLSFILES:T:R:C/^.*$/LintStub_&.c/g} 360 KERNLINTFLAGS?= -bcehnxzFS 361 NORMAL_LN?= ${LINT} ${KERNLINTFLAGS} ${CPPFLAGS:M-[IDU]*} -i $< 362 363 _lsrc=${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES} 364 LOBJS?= ${_lsrc:T:S/.c$/.ln/g} ${LIBKERNLN} ${SYSLIBCOMPATLN} 365 366 .for _sfile in ${ALLSFILES} 367 LintStub_${_sfile:T:R}.c: ${_sfile} assym.h 368 ${_MKTARGET_COMPILE} 369 ${CC} -E -C ${AFLAGS} ${CPPFLAGS} ${_sfile} | \ 370 awk -f $S/kern/genlintstub.awk >${.TARGET} 371 .endfor 372 373 .for _cfile in ${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES} 374 ${_cfile:T:R}.ln: ${_cfile} 375 ${_MKTARGET_COMPILE} 376 ${NORMAL_LN} 377 .endfor 378 379 lint: ${LOBJS} 380 ${LINT} ${KERNLINTFLAGS} ${CPPFLAGS:M-[IDU]*} ${LOBJS} 381 .endif 382 383 # Attempt to do a syntax-only compile of the entire kernel as one entity. 384 # Alas, bugs in the GCC C frontend prevent this from completely effective 385 # but information can be gleaned from the output. 386 syntax-only: ${CFILES} ${MD_CFILES} 387 ${CC} -fsyntax-only -combine ${CFLAGS} ${CPPFLAGS} \ 388 ${CFILES} ${MD_CFILES} 389 390 # List of kernel images that will be installed into the root file system. 391 # Some platforms may need to install more than one (e.g. a netbsd.aout file 392 # to be loaded directly by the firmware), so this can be overriden by them. 393 KERNIMAGES?= netbsd 394 395 .if !target(install) 396 # The install target can be redefined by putting a 397 # install-kernel-${MACHINE_NAME} target into /etc/mk.conf 398 MACHINE_NAME!= uname -n 399 install: install-kernel-${MACHINE_NAME} 400 .if !target(install-kernel-${MACHINE_NAME}) 401 install-kernel-${MACHINE_NAME}: 402 .for _K in ${KERNIMAGES} 403 rm -f ${DESTDIR}/o${_K} 404 ln ${DESTDIR}/${_K} ${DESTDIR}/o${_K} 405 cp ${_K} ${DESTDIR}/n${_K} 406 mv ${DESTDIR}/n${_K} ${DESTDIR}/${_K} 407 .endfor 408 .endif 409 .endif 410 411 .if !target(tags) 412 tags: 413 @echo "see $S/kern/Makefile for tags" 414 .endif 415 416 EXTRA_CLEAN+= cscope.out cscope.tmp 417 .if !target(cscope.out) 418 cscope.out: Makefile depend 419 ${_MKTARGET_CREATE} 420 @sed 's/[^:]*://;s/^ *//;s/ *\\ *$$//;' lib/kern/.depend | \ 421 tr -s ' ' '\n' | sed 's|^\([^.\\]\)|lib/kern/\1|;s|^../../||;' > \ 422 cscope.tmp 423 @sed 's/[^:]*://;s/^ *//;s/ *\\ *$$//;' lib/compat/.depend | \ 424 tr -s ' ' '\n' | sed 's|^\([^.\\]\)|lib/compat/\1|;s|^../../||;' >> \ 425 cscope.tmp 426 @echo ${SRCS} | cat - cscope.tmp | tr -s ' ' '\n' | sort -u | \ 427 ${CSCOPE} -k -i - -b `echo ${INCLUDES} | sed s/-nostdinc//` 428 # cscope doesn't write cscope.out if it's uptodate, so ensure 429 # make doesn't keep calling cscope when not needed. 430 @rm -f cscope.tmp; touch cscope.out 431 .endif 432 433 .if !target(cscope) 434 cscope: cscope.out 435 @${CSCOPE} -d 436 .endif 437 438 EXTRA_CLEAN+= ID 439 .if !target(mkid) 440 .PHONY: mkid 441 mkid: ID 442 443 ID: Makefile depend 444 ${_MKTARGET_CREATE} 445 @${MKID} `sed 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' lib/kern/.depend \ 446 lib/compat/.depend | tr ' ' '\n' | sed "s|^../../||" | sort -u` \ 447 `sed 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' .depend | tr ' ' '\n' \ 448 | sort -u` 449 450 .endif 451 452 .include "${S}/gdbscripts/Makefile.inc" 453 454 EXTRA_CLEAN+= .gdbinit 455 .gdbinit: Makefile ${S}/gdbscripts/Makefile.inc 456 ${_MKTARGET_CREATE} 457 rm -f .gdbinit 458 .for __gdbinit in ${SYS_GDBINIT} 459 echo "source ${S}/gdbscripts/${__gdbinit}" >> .gdbinit 460 .endfor 461 .if defined(GDBINIT) && !empty(GDBINIT) 462 .for __gdbinit in ${GDBINIT} 463 echo "source ${__gdbinit}" >> .gdbinit 464 .endfor 465 .endif 466 467 # The following files use alloca(3) or variable array allocations. 468 # Their full name is noted as documentation. 469 VARSTACK=dev/cgd.c kern/uipc_socket.c miscfs/genfs/genfs_vnops.c \ 470 nfs/nfs_bio.c uvm/uvm_bio.c \ 471 uvm/uvm_pager.c dev/ic/aic7xxx.c dev/ic/aic79xx.c arch/xen/i386/gdt.c \ 472 dev/ofw/ofw_subr.c 473 474 . if ${HAVE_GCC} > 3 475 .for __varstack in ${VARSTACK} 476 COPTS.${__varstack:T} += -Wno-stack-protector 477 .endfor 478 .endif 479 480 AFLAGS+= ${AOPTS.${.IMPSRC:T}} 481 CFLAGS+= ${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}} 482 CPPFLAGS+= ${CPPFLAGS.${.IMPSRC:T}} 483 CWARNFLAGS+= ${CWARNFLAGS.${.IMPSRC:T}} 484 485 .include <bsd.files.mk> 486 487 ## 488 ## the end 489 ## 490
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