# $NetBSD: Makefile.kern.inc,v 1.159 2012/11/04 11:12:31 apb Exp $ # # This file contains common `MI' targets and definitions and it is included # at the bottom of each `MD' ${MACHINE}/conf/Makefile.${MACHINE}. # # Each target in this file should be protected with `if !target(target)' # or `if !commands(target)' and each variable should only be conditionally # assigned `VAR ?= VALUE', so that everything can be overriden. # # DEBUG is set to -g if debugging. # PROF is set to -pg if profiling. # # To specify debugging, add the config line: makeoptions DEBUG="-g" # A better way is to specify -g only for a few files. # # makeoptions DEBUGLIST="uvm* trap if_*" # # all ports are expected to include bsd.own.mk for toolchain settings ## ## (0) toolchain settings for things that aren't part of the standard ## toolchain ## HOST_SH?= sh DBSYM?= dbsym MKDEP?= mkdep STRIP?= strip OBJCOPY?= objcopy OBJDUMP?= objdump CSCOPE?= cscope MKID?= mkid UUDECODE?= ${TOOL_UUDECODE:Uuudecode} HEXDUMP?= ${TOOL_HEXDUMP:Uhexdump} GENASSYM?= ${TOOL_GENASSYM:Ugenassym} .MAKEOVERRIDES+=USETOOLS # make sure proper value is propagated _MKMSG?= @\# _MKSHMSG?= echo _MKSHECHO?= echo _MKSHNOECHO= : _MKMSG_CREATE?= : _MKTARGET_COMPILE?= : _MKTARGET_CREATE?= : ## ## (1) port independent source tree identification ## # source tree is located via $S relative to the compilation directory .ifndef S S!= cd ../../../..; pwd .endif ## ## (2) compile settings ## ## CPPFLAGS, CFLAGS, and AFLAGS must be set in the port's Makefile ## INCLUDES?= -I. ${EXTRA_INCLUDES} -I${S}/../common/include -I$S/arch \ -I$S -nostdinc CPPFLAGS+= ${INCLUDES} ${IDENT} ${PARAM} -D_KERNEL -D_KERNEL_OPT CPPFLAGS+= -std=gnu99 DEFCOPTS?= -O2 COPTS?= ${DEFCOPTS} DBG= # might contain unwanted -Ofoo DEFWARNINGS?= yes .if (${DEFWARNINGS} == "yes") CWARNFLAGS+= -Wall -Wno-main -Wno-format-zero-length -Wpointer-arith CWARNFLAGS+= -Wmissing-prototypes -Wstrict-prototypes CWARNFLAGS+= -Wold-style-definition CWARNFLAGS+= -Wswitch -Wshadow CWARNFLAGS+= -Wcast-qual -Wwrite-strings CWARNFLAGS+= -Wno-unreachable-code CWARNFLAGS+= -Wno-pointer-sign -Wno-attributes . if ${MACHINE} == "i386" || ${MACHINE_ARCH} == "x86_64" || \ ${MACHINE_ARCH} == "sparc64" || ${MACHINE} == "prep" CWARNFLAGS+= -Wextra -Wno-unused-parameter . endif . if ${MACHINE} == "i386" || ${MACHINE_ARCH} == "x86_64" CWARNFLAGS+= -Wold-style-definition . endif # Add -Wno-sign-compare. -Wsign-compare is included in -Wall as of GCC 3.3, # but our sources aren't up for it yet. CWARNFLAGS+= -Wno-sign-compare .endif CWARNFLAGS.clang+= -Wno-unknown-pragmas -Wno-conversion \ -Wno-self-assign CWARNFLAGS.ah_regdomain.c= ${${ACTIVE_CC} == "clang":? \ -Wno-shift-count-negative -Wno-shift-count-overflow:} CFLAGS+= -ffreestanding -fno-zero-initialized-in-bss CFLAGS+= ${DEBUG} ${COPTS} AFLAGS+= -D_LOCORE -Wa,--fatal-warnings # XXX .if defined(HAVE_GCC) || defined(HAVE_LLVM) CFLAGS+= -fno-strict-aliasing CFLAGS+= -fno-common .endif .if ${USE_SSP:Uno} == "yes" COPTS.kern_ssp.c+= -fno-stack-protector -D__SSP__ .endif # for multi-cpu machines, cpu_hatch() straddles the init of # __stack_chk_guard, so ensure stack protection is disabled .if ${MACHINE} == "i386" || ${MACHINE_ARCH} == "x86_64" COPTS.cpu.c+= -fno-stack-protector .endif # If we want the bpendtsleep: label in kern_synch.c, we need to use # -fno-reorder-blocks. Don't make this a config(1) defflag without # making sure this fragment remains valid. .if defined(HAVE_GCC) && !empty(${CFLAGS:M-DKERN_SYNCH_BPENDTSLEEP_LABEL}) COPTS.kern_synch.c+= -fno-reorder-blocks .endif # Use the per-source COPTS variables to add -g to just those # files that match the shell patterns given in ${DEBUGLIST} # .for i in ${DEBUGLIST} . for j in ${CFILES:T:M$i.c} COPTS.${j}+=-g . endfor .endfor # Always compile debugsyms.c with debug information. # This allows gdb to use type informations. # COPTS.debugsyms.c+= -g # Add CTF sections for DTrace .if defined(CTFCONVERT) COMPILE_CTFCONVERT= ${_MKSHECHO}\ ${CTFCONVERT} ${CTFFLAGS} ${.TARGET} && \ ${CTFCONVERT} ${CTFFLAGS} ${.TARGET} .else COMPILE_CTFCONVERT= ${_MKSHNOECHO} .endif # compile rules: rules are named ${TYPE}_${SUFFIX} where TYPE is NORMAL or # NOPROF and SUFFIX is the file suffix, capitalized (e.g. C for a .c file). NORMAL_C?= @${_MKSHMSG} "compile ${.CURDIR:T}/${.TARGET}" && \ ${_MKSHECHO}\ ${CC} ${COPTS.${<:T}} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $< && \ ${CC} ${COPTS.${<:T}} ${CFLAGS} ${CPPFLAGS} ${PROF} -c $< && \ ${COMPILE_CTFCONVERT} NOPROF_C?= @${_MKSHMSG} "compile ${.CURDIR:T}/${.TARGET}" && \ ${_MKSHECHO}\ ${CC} ${COPTS.${<:T}} ${CFLAGS} ${CPPFLAGS} -c $< && \ ${CC} ${COPTS.${<:T}} ${CFLAGS} ${CPPFLAGS} -c $< && \ ${COMPILE_CTFCONVERT} NORMAL_S?= @${_MKSHMSG} "compile ${.CURDIR:T}/${.TARGET}" && \ ${_MKSHECHO}\ ${CC} ${AFLAGS} ${AFLAGS.${<:T}} ${CPPFLAGS} -c $< && \ ${CC} ${AFLAGS} ${AFLAGS.${<:T}} ${CPPFLAGS} -c $< ## ## (3) libkern and compat ## ## Set KERN_AS in the port Makefile to "obj" or "library". The ## default is "library", as documented in $S/lib/libkern/Makefile.inc. ## ### find out what to use for libkern .include "$S/lib/libkern/Makefile.inc" .ifndef PROF LIBKERN?= ${KERNLIB} .else LIBKERN?= ${KERNLIB_PROF} .endif LIBKERNLN?= ${KERNLIBLN} ### find out what to use for libcompat .include "$S/compat/common/Makefile.inc" .ifndef PROF SYSLIBCOMPAT?= ${COMPATLIB} .else SYSLIBCOMPAT?= ${COMPATLIB_PROF} .endif SYSLIBCOMPATLN?= ${COMPATLIBLN} ## ## (4) local objects, compile rules, and dependencies ## ## Each port should have a corresponding section with settings for ## MD_CFILES, MD_SFILES, and MD_OBJS, along with build rules for same. ## MI_CFILES=devsw.c ioconf.c param.c # the need for a MI_SFILES variable is dubitable at best MI_OBJS=${MI_CFILES:S/.c/.o/} param.c: $S/conf/param.c ${_MKTARGET_CREATE} rm -f param.c cp $S/conf/param.c . param.o: Makefile .for _cfile in ${MI_CFILES} ${_cfile:T:R}.o: ${_cfile} ${NORMAL_C} .endfor ## ## (5) link settings ## ## TEXTADDR (or LOADADDRESS), LINKFORMAT, and any EXTRA_LINKFLAGS must ## be set in the port's Makefile. The port specific definitions for ## LINKFLAGS_NORMAL and LINKFLAGS_DEBUG will added to the LINKFLAGS ## depending on the value of DEBUG. ## # load lines for config "xxx" will be emitted as: # xxx: ${SYSTEM_DEP} swapxxx.o # ${SYSTEM_LD_HEAD} # ${SYSTEM_LD} swapxxx.o # ${SYSTEM_LD_TAIL} SYSTEM_OBJ?= ${MD_OBJS} ${MI_OBJS} ${OBJS:O} ${SYSLIBCOMPAT} ${LIBKERN} SYSTEM_DEP?= Makefile ${SYSTEM_OBJ:O} .gdbinit .if defined(KERNLDSCRIPT) SYSTEM_DEP+= ${KERNLDSCRIPT} .endif .if defined(CTFMERGE) SYSTEM_CTFMERGE= ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJ} ${EXTRA_OBJ} vers.o .else SYSTEM_CTFMERGE= ${_MKSHECHO} .endif SYSTEM_LD_HEAD?=@rm -f $@ SYSTEM_LD?= @${_MKSHMSG} " link ${.CURDIR:T}/${.TARGET}"; \ ${_MKSHECHO}\ ${LD} -Map $@.map --cref ${LINKFLAGS} -o $@ '$${SYSTEM_OBJ}' '$${EXTRA_OBJ}' vers.o; \ ${LD} -Map $@.map --cref ${LINKFLAGS} -o $@ ${SYSTEM_OBJ} ${EXTRA_OBJ} vers.o AUTO_SYMTAB_SPACE?= yes .if empty(AUTO_SYMTAB_SPACE:M[Yy][Ee][Ss]) || defined(_SYMTAB_SPACE_ADJUSTED) SYSTEM_LD_TAIL_DBSYM?= true .else SYSTEM_LD_TAIL_DBSYM?= \ if grep '^\#define.*SYMTAB_SPACE' opt_ksyms.h > /dev/null; then \ _modify_opt_ksyms_h () { \ ${TOOL_SED} \ -e 's/^\(\#define.*SYMTAB_SPACE[ ]*\)[0-9]*/\1'$$1/ \ -e 's/\(.equiv[ ]*_KERNEL_OPT_SYMTAB_SPACE,0x\)[0-9a-f]*/\1'$$(printf %x $$1)/ \ opt_ksyms.h > opt_ksyms.h.ADJ && \ mv opt_ksyms.h.ADJ opt_ksyms.h && \ ${MAKE} ${MFLAGS} _SYMTAB_SPACE_ADJUSTED=1 $@; \ }; \ _adj_symtab_space () { \ set -- $$(${DBSYM} -p $@); \ echo Symtab size: $$1, space: $$2; \ if [ "$$1" -gt "$$2" ]; then \ echo Adjusting symtab space; \ rm -f $@; \ _modify_opt_ksyms_h $$1; \ fi; \ }; \ _adj_symtab_space; \ fi .endif .if defined(_SYMTAB_SPACE_ADJUSTED) SYSTEM_LD_TAIL?=true .else SYSTEM_LD_TAIL?=@${SYSTEM_LD_TAIL_DBSYM} ; \ ${TOOL_SED} '/const char sccs/!d;s/.*@(.)//;s/\\.*//' vers.c; \ ${SIZE} $@; chmod 755 $@; \ ${SYSTEM_CTFMERGE} .endif TEXTADDR?= ${LOADADDRESS} # backwards compatibility LINKTEXT?= ${TEXTADDR:C/.+/-Ttext &/} LINKDATA?= ${DATAADDR:C/.+/-Tdata &/} ENTRYPOINT?= start LINKENTRY?= ${ENTRYPOINT:C/.+/-e &/} LINKFLAGS?= ${LINKFORMAT} ${LINKTEXT} ${LINKDATA} ${LINKENTRY} \ ${EXTRA_LINKFLAGS} LINKFLAGS_DEBUG?= -X SYSTEM_LD_TAIL_DEBUG?=; \ echo mv -f $@ $@.gdb; mv -f $@ $@.gdb; \ echo ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb; \ ${STRIP} ${STRIPFLAGS} -o $@ $@.gdb LINKFLAGS_NORMAL?= -S STRIPFLAGS?= -g DEBUG?= .if !empty(DEBUG:M-g*) SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_DEBUG} LINKFLAGS+= ${LINKFLAGS_DEBUG} EXTRA_KERNELS+= ${KERNELS:@.KERNEL.@${.KERNEL.}.gdb@} CTFFLAGS+= -g .if !defined(_SYMTAB_SPACE_ADJUSTED) SYSTEM_LD_TAIL+=; \ if grep '^\#define.*SYMTAB_SPACE' opt_ksyms.h > /dev/null; then \ echo "${DBSYM} $@.gdb"; \ ${DBSYM} $@.gdb || (rm -f $@ ; exit 1) || exit 1; \ fi .endif .elifndef PROF LINKFLAGS+= ${LINKFLAGS_NORMAL} .endif .if !defined(_SYMTAB_SPACE_ADJUSTED) SYSTEM_LD_TAIL+=; \ if grep '^\#define.*SYMTAB_SPACE' opt_ksyms.h > /dev/null; then \ echo "${DBSYM} $@"; \ ${DBSYM} $@ || (rm -f $@ ; exit 1) || exit 1; \ fi .endif SYSTEM_LD_HEAD+=${SYSTEM_LD_HEAD_EXTRA} SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_EXTRA} ## ## (6) port independent targets and dependencies: assym.h, vers.o ## .if !target(assym.h) assym.h: ${GENASSYM_CONF} ${GENASSYM_EXTRAS} ${_MKTARGET_CREATE} cat ${GENASSYM_CONF} ${GENASSYM_EXTRAS} | \ ${GENASSYM} -- ${CC} ${CFLAGS:N-Wa,*} ${CPPFLAGS} ${PROF} \ > assym.h.tmp && \ mv -f assym.h.tmp assym.h ${MD_SFILES:C/\.[Ss]/.o/} ${SFILES:C/\.[Ss]/.o/}: assym.h .endif MKREPRO?=no .if ${MKREPRO} == "yes" _NVFLAGS=${NVFLAGS} -r .else _NVFLAGS=${NVFLAGS} .endif .if !target(vers.o) newvers: vers.o vers.o: ${SYSTEM_DEP} ${SYSTEM_SWAP_DEP} $S/conf/newvers.sh \ $S/conf/osrelease.sh ${_NETBSD_VERSION_DEPENDS} ${_MKMSG_CREATE} vers.c ${HOST_SH} $S/conf/newvers.sh ${_NVFLAGS} ${_MKTARGET_COMPILE} ${CC} ${CFLAGS} ${CPPFLAGS} ${PROF} -c vers.c .endif .if defined(MEMORY_DISK_IMAGE) md_root_image.h: ${MEMORY_DISK_IMAGE} ${_MKTARGET_CREATE} ${TOOL_HEXDUMP} -v -e '"\t" 8/1 "0x%02x, " "\n"' ${.ALLSRC} > ${.TARGET} # XXX This is only needed when building md_root.o CPPFLAGS+= -DMEMORY_DISK_IMAGE md_root.o: md_root_image.h .endif # depend on MEMORY_DISK_IMAGE configuration md_root.o: Makefile # depend on root or device configuration autoconf.o conf.o: Makefile # depend on network or filesystem configuration uipc_proto.o vfs_conf.o: Makefile # depend on maxusers and CPU configuration assym.h machdep.o: Makefile ## ## (7) misc targets: install, clean(dir), depend(all), lint, links, tags, ## cscope, mkid ## ## Any ports that have other stuff to be cleaned up should fill in ## EXTRA_CLEAN. Some ports may want different settings for ## KERNLINTFLAGS, MKDEP_CFLAGS, or MKDEP_AFLAGS. ## .if !target(__CLEANKERNEL) __CLEANKERNEL: .USE ${_MKMSG} "${.TARGET}ing the kernel objects" rm -f ${KERNELS} eddep tags *.[io] *.ln [a-z]*.s vers.c \ [Ee]rrs linterrs makelinks assym.h.tmp assym.h \ ${EXTRA_KERNELS} ${EXTRA_CLEAN} .endif .if !target(kernelnames) kernelnames: @echo "${KERNELS} ${EXTRA_KERNELS}" .endif .if !target(__CLEANDEPEND) __CLEANDEPEND: .USE echo .depend ${DEPS} | xargs rm -f -- .endif # do not !target these, the kern and compat Makefiles augment them cleandir distclean: __CLEANKERNEL __CLEANDEPEND clean: __CLEANKERNEL depend: .depend dependall: depend .WAIT all .if !target(.depend) MKDEP_AFLAGS?= ${AFLAGS} MKDEP_CFLAGS?= ${CFLAGS} SSRCS=${MD_SFILES} ${SFILES} CSRCS=${MD_CFILES} ${MI_CFILES} ${CFILES} SRCS=${SSRCS} ${CSRCS} DEPS= ${SRCS:T:O:u:R:S/$/.d/g} .for _s in ${SSRCS} .if !target(${_s:T:R}.d) ${_s:T:R}.d: ${_s} assym.h ${_MKTARGET_CREATE} ${MKDEP} -f ${.TARGET} -- ${MKDEP_AFLAGS} \ ${CPPFLAGS} ${CPPFLAGS.${_s:T}} ${_s} .endif .endfor .for _s in ${CSRCS} .if !target(${_s:T:R}.d) ${_s:T:R}.d: ${_s} ${_MKTARGET_CREATE} ${MKDEP} -f ${.TARGET} -- ${MKDEP_CFLAGS} \ ${CPPFLAGS} ${CPPFLAGS.${_s:T}} ${_s} .endif .endfor assym.d: assym.h ${_MKTARGET_CREATE} cat ${GENASSYM_CONF} ${GENASSYM_EXTRAS} | \ ${GENASSYM} -- ${MKDEP} -f assym.dep -- \ ${CFLAGS:N-Wa,*} ${CPPFLAGS} ${TOOL_SED} -e 's/.*\.o:.*\.c/assym.h:/' < assym.dep >${.TARGET} rm -f assym.dep DEPS+= assym.d .depend: ${DEPS} ${_MKTARGET_CREATE} echo "${.ALLSRC}" | ${MKDEP} -D .endif .if !target(lint) ALLSFILES?= ${MD_SFILES} ${SFILES} LINTSTUBS?= ${ALLSFILES:T:R:C/^.*$/LintStub_&.c/g} KERNLINTFLAGS?= -bcehnxzFS NORMAL_LN?= ${LINT} ${KERNLINTFLAGS} ${CPPFLAGS:M-[IDU]*} -i $< _lsrc=${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES} LOBJS?= ${_lsrc:T:S/.c$/.ln/g} ${LIBKERNLN} ${SYSLIBCOMPATLN} .for _sfile in ${ALLSFILES} LintStub_${_sfile:T:R}.c: ${_sfile} assym.h ${_MKTARGET_COMPILE} ${CC} -E -C ${AFLAGS} ${CPPFLAGS} ${_sfile} | \ ${TOOL_AWK} -f $S/kern/genlintstub.awk >${.TARGET} .endfor .for _cfile in ${CFILES} ${LINTSTUBS} ${MI_CFILES} ${MD_CFILES} ${_cfile:T:R}.ln: ${_cfile} ${_MKTARGET_COMPILE} ${NORMAL_LN} .endfor lint: ${LOBJS} ${LINT} ${KERNLINTFLAGS} ${CPPFLAGS:M-[IDU]*} ${LOBJS} .endif # Attempt to do a syntax-only compile of the entire kernel as one entity. # Alas, bugs in the GCC C frontend prevent this from completely effective # but information can be gleaned from the output. syntax-only: ${CFILES} ${MD_CFILES} ${CC} -fsyntax-only -combine ${CFLAGS} ${CPPFLAGS} \ ${CFILES} ${MD_CFILES} # List of kernel images that will be installed into the root file system. # Some platforms may need to install more than one (e.g. a netbsd.aout file # to be loaded directly by the firmware), so this can be overriden by them. KERNIMAGES?= netbsd .if !target(install) # The install target can be redefined by putting a # install-kernel-${MACHINE_NAME} target into /etc/mk.conf MACHINE_NAME!= uname -n install: install-kernel-${MACHINE_NAME} .if !target(install-kernel-${MACHINE_NAME}) install-kernel-${MACHINE_NAME}: .for _K in ${KERNIMAGES} rm -f ${DESTDIR}/o${_K} ln ${DESTDIR}/${_K} ${DESTDIR}/o${_K} cp ${_K} ${DESTDIR}/n${_K} mv ${DESTDIR}/n${_K} ${DESTDIR}/${_K} .endfor .endif .endif .if !target(tags) tags: @echo "see $S/kern/Makefile for tags" .endif EXTRA_CLEAN+= cscope.out cscope.tmp .if !target(cscope.out) cscope.out: Makefile depend ${_MKTARGET_CREATE} @${TOOL_SED} 's/[^:]*://;s/^ *//;s/ *\\ *$$//;' lib/kern/.depend \ | tr -s ' ' '\n' \ | ${TOOL_SED} ';s|^../../||;' \ > cscope.tmp @${TOOL_SED} 's/[^:]*://;s/^ *//;s/ *\\ *$$//;' lib/compat/.depend \ | tr -s ' ' '\n' \ | ${TOOL_SED} 's|^../../||;' \ >> cscope.tmp @echo ${SRCS} | cat - cscope.tmp | tr -s ' ' '\n' | sort -u | \ ${CSCOPE} -k -i - -b `echo ${INCLUDES} | ${TOOL_SED} s/-nostdinc//` # cscope doesn't write cscope.out if it's uptodate, so ensure # make doesn't keep calling cscope when not needed. @rm -f cscope.tmp; touch cscope.out .endif .if !target(cscope) cscope: cscope.out @${CSCOPE} -d .endif EXTRA_CLEAN+= ID .if !target(mkid) .PHONY: mkid mkid: ID ID: Makefile depend ${_MKTARGET_CREATE} @${MKID} \ `${TOOL_SED} 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' \ lib/kern/.depend lib/compat/.depend \ | tr ' ' '\n' \ | ${TOOL_SED} "s|^../../||" \ | sort -u` \ `${TOOL_SED} 's/[^:]*://;s/^ *//;s/ *\\\\ *$$//;' \ .depend \ | tr ' ' '\n' \ | sort -u` .endif .include "${S}/gdbscripts/Makefile.inc" EXTRA_CLEAN+= .gdbinit .gdbinit: Makefile ${S}/gdbscripts/Makefile.inc ${_MKTARGET_CREATE} rm -f .gdbinit .for __gdbinit in ${SYS_GDBINIT} echo "source ${S}/gdbscripts/${__gdbinit}" >> .gdbinit .endfor .if defined(GDBINIT) && !empty(GDBINIT) .for __gdbinit in ${GDBINIT} echo "source ${__gdbinit}" >> .gdbinit .endfor .endif # The following files use alloca(3) or variable array allocations. # Their full name is noted as documentation. VARSTACK=kern/uipc_socket.c miscfs/genfs/genfs_vnops.c \ nfs/nfs_bio.c uvm/uvm_bio.c \ uvm/uvm_pager.c dev/ic/aic7xxx.c dev/ic/aic79xx.c arch/xen/i386/gdt.c \ dev/ofw/ofw_subr.c .for __varstack in ${VARSTACK} COPTS.${__varstack:T} += -Wno-stack-protector .endfor AFLAGS+= ${AOPTS.${.IMPSRC:T}} CFLAGS+= ${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}} CPPFLAGS+= ${CPPFLAGS.${.IMPSRC:T}} CWARNFLAGS+= ${CWARNFLAGS.${.IMPSRC:T}} .include .include ## ## the end ##