1 # $NetBSD: Makefile.kern.inc,v 1.124 2009/05/13 18:06:26 cube Exp $
3 # This file contains common `MI' targets and definitions and it is included
4 # at the bottom of each `MD' ${MACHINE}/conf/Makefile.${MACHINE}.
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.
10 # DEBUG is set to -g if debugging.
11 # PROF is set to -pg if profiling.
13 # To specify debugging, add the config line: makeoptions DEBUG="-g"
14 # A better way is to specify -g only for a few files.
16 # makeoptions DEBUGLIST="uvm* trap if_*"
18 # all ports are expected to include bsd.own.mk for toolchain settings
21 ## (0) toolchain settings for things that aren't part of the standard
32 UUDECODE?= ${TOOL_UUDECODE:Uuudecode}
33 HEXDUMP?= ${TOOL_HEXDUMP:Uhexdump}
34 GENASSYM?= ${TOOL_GENASSYM:Ugenassym}
35 .MAKEOVERRIDES+=USETOOLS # make sure proper value is propagated
45 ## (1) port independent source tree identification
47 # source tree is located via $S relative to the compilation directory
49 S!= cd ../../../..; pwd
53 ## (2) compile settings
55 ## CPPFLAGS, CFLAGS, and AFLAGS must be set in the port's Makefile
57 INCLUDES?= -I. ${EXTRA_INCLUDES} -I${S}/../common/include -I$S/arch \
59 CPPFLAGS+= ${INCLUDES} ${IDENT} ${PARAM} -D_KERNEL -D_KERNEL_OPT
63 DBG= # might contain unwanted -Ofoo
65 .if (${DEFWARNINGS} == "yes")
66 . if !defined(NOGCCERROR)
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
86 CFLAGS+= -ffreestanding -fno-zero-initialized-in-bss
87 CFLAGS+= ${DEBUG} ${COPTS}
88 AFLAGS+= -D_LOCORE -Wa,-fatal-warnings
91 .if defined(HAVE_GCC) && ${HAVE_GCC} > 3
92 CFLAGS+= -fno-strict-aliasing
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 COPTS.kern_ssp.c+= -fno-stack-protector -D__SSP__
101 # If we want the bpendtsleep: label in kern_synch.c, we need to use
102 # -fno-reorder-blocks. Don't make this a config(1) defflag without
103 # making sure this fragment remains valid.
104 .if defined(HAVE_GCC) && ${HAVE_GCC} > 3 && \
105 !empty(${CFLAGS:M-DKERN_SYNCH_BPENDTSLEEP_LABEL})
106 COPTS.kern_synch.c+= -fno-reorder-blocks
109 # Use the per-source COPTS variables to add -g to just those
110 # files that match the shell patterns given in ${DEBUGLIST}
112 .for i in ${DEBUGLIST}
113 . for j in ${CFILES:T:M$i.c}
118 # Always compile subr_debug_info.c with debug informations.
119 # This allows gdb to use type informations.
121 COPTS.debugsyms.c+= -g
123 # compile rules: rules are named ${TYPE}_${SUFFIX} where TYPE is NORMAL or
124 # NOPROF and SUFFIX is the file suffix, capitalized (e.g. C for a .c file).
125 NORMAL_C?= @${_MKSHMSG} "compile ${.CURDIR:T}/${.TARGET}"; \
127 ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $<; \
128 ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $<
129 NOPROF_C?= @${_MKSHMSG} "compile ${.CURDIR:T}/${.TARGET}"; \
131 ${CC} ${CFLAGS} ${CPPFLAGS} -c $<; \
132 ${CC} ${CFLAGS} ${CPPFLAGS} -c $<
133 NORMAL_S?= @${_MKSHMSG} "compile ${.CURDIR:T}/${.TARGET}"; \
135 ${CC} ${AFLAGS} ${CPPFLAGS} -c $<; \
136 ${CC} ${AFLAGS} ${CPPFLAGS} -c $<
139 ## (3) libkern and compat
141 ## Set KERN_AS in the port Makefile to "obj" or "library". The
142 ## default is "library", as documented in $S/lib/libkern/Makefile.inc.
145 ### find out what to use for libkern
146 .include "$S/lib/libkern/Makefile.inc"
150 LIBKERN?= ${KERNLIB_PROF}
153 LIBKERNLN?= ${KERNLIBLN}
155 ### find out what to use for libcompat
156 .include "$S/compat/common/Makefile.inc"
158 SYSLIBCOMPAT?= ${COMPATLIB}
160 SYSLIBCOMPAT?= ${COMPATLIB_PROF}
163 SYSLIBCOMPATLN?= ${COMPATLIBLN}
166 ## (4) local objects, compile rules, and dependencies
168 ## Each port should have a corresponding section with settings for
169 ## MD_CFILES, MD_SFILES, and MD_OBJS, along with build rules for same.
171 MI_CFILES=devsw.c ioconf.c param.c
172 # the need for a MI_SFILES variable is dubitable at best
173 MI_OBJS=${MI_CFILES:S/.c/.o/}
175 param.c: $S/conf/param.c
182 .for _cfile in ${MI_CFILES}
183 ${_cfile:T:R}.o: ${_cfile}
190 ## TEXTADDR (or LOADADDRESS), LINKFORMAT, and any EXTRA_LINKFLAGS must
191 ## be set in the port's Makefile. The port specific definitions for
192 ## LINKFLAGS_NORMAL and LINKFLAGS_DEBUG will added to the LINKFLAGS
193 ## depending on the value of DEBUG.
195 # load lines for config "xxx" will be emitted as:
196 # xxx: ${SYSTEM_DEP} swapxxx.o
198 # ${SYSTEM_LD} swapxxx.o
200 SYSTEM_OBJ?= ${MD_OBJS} ${MI_OBJS} ${OBJS:O} ${SYSLIBCOMPAT} ${LIBKERN}
201 SYSTEM_DEP?= Makefile ${SYSTEM_OBJ:O} .gdbinit
202 SYSTEM_LD_HEAD?=@rm -f $@
203 SYSTEM_LD?= @${_MKSHMSG} " link ${.CURDIR:T}/${.TARGET}"; \
205 ${LD} -Map $@.map --cref ${LINKFLAGS} -o $@ '$${SYSTEM_OBJ}' '$${EXTRA_OBJ}' vers.o; \
206 ${LD} -Map $@.map --cref ${LINKFLAGS} -o $@ ${SYSTEM_OBJ} ${EXTRA_OBJ} vers.o
207 SYSTEM_LD_TAIL?=@${TOOL_SED} '/const char sccs/!d;s/.*@(.)//;s/\\.*//' vers.c; \
208 ${SIZE} $@; chmod 755 $@
210 TEXTADDR?= ${LOADADDRESS} # backwards compatibility
211 LINKTEXT?= ${TEXTADDR:C/.+/-Ttext &/}
212 LINKDATA?= ${DATAADDR:C/.+/-Tdata &/}
214 LINKENTRY?= ${ENTRYPOINT:C/.+/-e &/}
215 LINKFLAGS?= ${LINKFORMAT} ${LINKTEXT} ${LINKDATA} ${LINKENTRY} \
219 SYSTEM_LD_TAIL_DEBUG?=; \
220 echo mv -f $@ $@.gdb; mv -f $@ $@.gdb; \
221 echo ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb; \
222 ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb
223 LINKFLAGS_NORMAL?= -S
227 .if !empty(DEBUG:M-g*)
228 SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_DEBUG}
229 LINKFLAGS+= ${LINKFLAGS_DEBUG}
230 EXTRA_KERNELS+= ${KERNELS:@.KERNEL.@${.KERNEL.}.gdb@}
232 LINKFLAGS+= ${LINKFLAGS_NORMAL}
236 if grep '^\#define.*SYMTAB_SPACE' opt_ddbparam.h > /dev/null; then \
237 echo "${DBSYM} $@"; \
241 SYSTEM_LD_HEAD+=${SYSTEM_LD_HEAD_EXTRA}
242 SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_EXTRA}
245 ## (6) port independent targets and dependencies: assym.h, vers.o
248 assym.h: ${GENASSYM_CONF} ${GENASSYM_EXTRAS}
250 cat ${GENASSYM_CONF} ${GENASSYM_EXTRAS} | \
251 ${GENASSYM} -- ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} \
253 mv -f assym.h.tmp assym.h
254 ${MD_SFILES:C/\.[Ss]/.o/} ${SFILES:C/\.[Ss]/.o/}: assym.h
259 .if ${MKREPRO} == "yes"
267 vers.o: ${SYSTEM_DEP} ${SYSTEM_SWAP_DEP} $S/conf/newvers.sh $S/conf/osrelease.sh
268 ${_MKMSG_CREATE} vers.c
269 ${HOST_SH} $S/conf/newvers.sh ${_NVFLAGS}
271 ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c vers.c
274 .if defined(MEMORY_DISK_IMAGE)
275 md_root_image.h: ${MEMORY_DISK_IMAGE}
277 ${TOOL_HEXDUMP} -v -e '"\t" 8/1 "0x%02x, " "\n"' ${.ALLSRC} > ${.TARGET}
279 # XXX This is only needed when building md_root.o
280 CPPFLAGS+= -DMEMORY_DISK_IMAGE
281 md_root.o: md_root_image.h
284 # depend on MEMORY_DISK_IMAGE configuration
287 # depend on root or device configuration
288 autoconf.o conf.o: Makefile
290 # depend on network or filesystem configuration
291 uipc_proto.o vfs_conf.o: Makefile
293 # depend on maxusers and CPU configuration
294 assym.h machdep.o: Makefile
297 ## (7) misc targets: install, clean(dir), depend(all), lint, links, tags,
300 ## Any ports that have other stuff to be cleaned up should fill in
301 ## EXTRA_CLEAN. Some ports may want different settings for
302 ## KERNLINTFLAGS, MKDEP_CFLAGS, or MKDEP_AFLAGS.
304 .if !target(__CLEANKERNEL)
306 ${_MKMSG} "${.TARGET}ing the kernel objects"
307 rm -f ${KERNELS} eddep tags *.[io] *.ln [a-z]*.s vers.c \
308 [Ee]rrs linterrs makelinks assym.h.tmp assym.h \
309 ${EXTRA_KERNELS} ${EXTRA_CLEAN}
312 .if !target(kernelnames)
314 @echo "${KERNELS} ${EXTRA_KERNELS}"
317 .if !target(__CLEANDEPEND)
319 echo .depend ${DEPS} | xargs rm -f --
322 # do not !target these, the kern and compat Makefiles augment them
323 cleandir distclean: __CLEANKERNEL __CLEANDEPEND
326 dependall: depend .WAIT all
329 MKDEP_AFLAGS?= ${AFLAGS}
330 MKDEP_CFLAGS?= ${CFLAGS}
331 SSRCS=${MD_SFILES} ${SFILES}
332 CSRCS=${MD_CFILES} ${MI_CFILES} ${CFILES}
333 SRCS=${SSRCS} ${CSRCS}
334 DEPS= ${SRCS:T:O:u:R:S/$/.d/g}
337 ${_s:T:R}.d: ${_s} assym.h
339 ${MKDEP} -f ${.TARGET} -- ${MKDEP_AFLAGS} \
340 ${CPPFLAGS} ${CPPFLAGS.${_s:T}} ${_s}
345 ${MKDEP} -f ${.TARGET} -- ${MKDEP_CFLAGS} \
346 ${CPPFLAGS} ${CPPFLAGS.${_s:T}} ${_s}
351 cat ${GENASSYM_CONF} ${GENASSYM_EXTRAS} | \
352 ${GENASSYM} -- ${MKDEP} -f assym.dep -- \
353 ${CFLAGS} ${CPPFLAGS}
354 ${TOOL_SED} -e 's/.*\.o:.*\.c/assym.h:/' < assym.dep >${.TARGET}
361 echo "${.ALLSRC}" | ${MKDEP} -D
365 ALLSFILES?= ${MD_SFILES} ${SFILES}
366 LINTSTUBS?= ${ALLSFILES:T:R:C/^.*$/LintStub_&.c/g}
367 KERNLINTFLAGS?= -bcehnxzFS
368 NORMAL_LN?= ${LINT} ${KERNLINTFLAGS} ${CPPFLAGS:M-[IDU]*} -i $<
370 _lsrc=${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES}
371 LOBJS?= ${_lsrc:T:S/.c$/.ln/g} ${LIBKERNLN} ${SYSLIBCOMPATLN}
373 .for _sfile in ${ALLSFILES}
374 LintStub_${_sfile:T:R}.c: ${_sfile} assym.h
376 ${CC} -E -C ${AFLAGS} ${CPPFLAGS} ${_sfile} | \
377 ${TOOL_AWK} -f $S/kern/genlintstub.awk >${.TARGET}
380 .for _cfile in ${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES}
381 ${_cfile:T:R}.ln: ${_cfile}
387 ${LINT} ${KERNLINTFLAGS} ${CPPFLAGS:M-[IDU]*} ${LOBJS}
390 # Attempt to do a syntax-only compile of the entire kernel as one entity.
391 # Alas, bugs in the GCC C frontend prevent this from completely effective
392 # but information can be gleaned from the output.
393 syntax-only: ${CFILES} ${MD_CFILES}
394 ${CC} -fsyntax-only -combine ${CFLAGS} ${CPPFLAGS} \
395 ${CFILES} ${MD_CFILES}
397 # List of kernel images that will be installed into the root file system.
398 # Some platforms may need to install more than one (e.g. a netbsd.aout file
399 # to be loaded directly by the firmware), so this can be overriden by them.
403 # The install target can be redefined by putting a
404 # install-kernel-${MACHINE_NAME} target into /etc/mk.conf
405 MACHINE_NAME!= uname -n
406 install: install-kernel-${MACHINE_NAME}
407 .if !target(install-kernel-${MACHINE_NAME})
408 install-kernel-${MACHINE_NAME}:
409 .for _K in ${KERNIMAGES}
410 rm -f ${DESTDIR}/o${_K}
411 ln ${DESTDIR}/${_K} ${DESTDIR}/o${_K}
412 cp ${_K} ${DESTDIR}/n${_K}
413 mv ${DESTDIR}/n${_K} ${DESTDIR}/${_K}
420 @echo "see $S/kern/Makefile for tags"
423 EXTRA_CLEAN+= cscope.out cscope.tmp
424 .if !target(cscope.out)
425 cscope.out: Makefile depend
427 @${TOOL_SED} 's/[^:]*://;s/^ *//;s/ *\\ *$$//;' lib/kern/.depend \
429 | ${TOOL_SED} ';s|^../../||;' \
431 @${TOOL_SED} 's/[^:]*://;s/^ *//;s/ *\\ *$$//;' lib/compat/.depend \
433 | ${TOOL_SED} 's|^../../||;' \
435 @echo ${SRCS} | cat - cscope.tmp | tr -s ' ' '\n' | sort -u | \
436 ${CSCOPE} -k -i - -b `echo ${INCLUDES} | ${TOOL_SED} s/-nostdinc//`
437 # cscope doesn't write cscope.out if it's uptodate, so ensure
438 # make doesn't keep calling cscope when not needed.
439 @rm -f cscope.tmp; touch cscope.out
455 `${TOOL_SED} 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' \
456 lib/kern/.depend lib/compat/.depend \
458 | ${TOOL_SED} "s|^../../||" \
460 `${TOOL_SED} 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' \
467 .include "${S}/gdbscripts/Makefile.inc"
469 EXTRA_CLEAN+= .gdbinit
470 .gdbinit: Makefile ${S}/gdbscripts/Makefile.inc
473 .for __gdbinit in ${SYS_GDBINIT}
474 echo "source ${S}/gdbscripts/${__gdbinit}" >> .gdbinit
476 .if defined(GDBINIT) && !empty(GDBINIT)
477 .for __gdbinit in ${GDBINIT}
478 echo "source ${__gdbinit}" >> .gdbinit
482 # The following files use alloca(3) or variable array allocations.
483 # Their full name is noted as documentation.
484 VARSTACK=kern/uipc_socket.c miscfs/genfs/genfs_vnops.c \
485 nfs/nfs_bio.c uvm/uvm_bio.c \
486 uvm/uvm_pager.c dev/ic/aic7xxx.c dev/ic/aic79xx.c arch/xen/i386/gdt.c \
489 . if (defined(HAVE_GCC) && ${HAVE_GCC} > 3) || defined(HAVE_PCC)
490 .for __varstack in ${VARSTACK}
491 COPTS.${__varstack:T} += -Wno-stack-protector
495 AFLAGS+= ${AOPTS.${.IMPSRC:T}}
496 CFLAGS+= ${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}}
497 CPPFLAGS+= ${CPPFLAGS.${.IMPSRC:T}}
498 CWARNFLAGS+= ${CWARNFLAGS.${.IMPSRC:T}}
500 .include <bsd.files.mk>