# $NetBSD: Makefile.kern.inc,v 1.295.4.1 2023/09/11 13:35:37 martin 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 overridden. # # 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 # Default DEBUG to -g if kernel debug info is requested by MKDEBUGKERNEL=yes .if ${MKDEBUGKERNEL:Uno} == "yes" || ${MKDEBUG:Uno} == "yes" DEBUG?=-g .else DEBUG?= .endif ## ## (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} -D_KERNEL -D_KERNEL_OPT .if !defined(COVERITY_TOP_CONFIG) CPPFLAGS+= -std=gnu99 .endif .if ${KERNEL_DIR:Uno} == "yes" CPPFLAGS+= -DKERNEL_DIR .endif DEFCOPTS?= -O2 COPTS?= ${DEFCOPTS} DBG= # might contain unwanted -Ofoo 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+= -Wc++-compat -Wno-error=c++-compat CWARNFLAGS+= -Wno-pointer-sign -Wno-attributes CWARNFLAGS+= -Wno-type-limits . 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 CWARNFLAGS.clang+= -Wno-unknown-pragmas -Wno-conversion \ -Wno-self-assign -Wno-error=address-of-packed-member \ -Wno-error=constant-conversion CWARNFLAGS.gcc+= ${GCC_NO_ADDR_OF_PACKED_MEMBER} CWARNFLAGS.ah_regdomain.c= ${${ACTIVE_CC} == "clang":? \ -Wno-shift-count-negative -Wno-shift-count-overflow:} CWARNFLAGS.ioconf.c= ${${ACTIVE_CC} == "clang":? -Wno-unused-const-variable :} CFLAGS+= -ffreestanding -fno-zero-initialized-in-bss CFLAGS+= ${${ACTIVE_CC} == "gcc":? -fno-delete-null-pointer-checks :} CFLAGS+= ${DEBUG} ${COPTS} AFLAGS+= -D_LOCORE -Wa,--fatal-warnings # example usage to find largest stack users in kernel compile directory: # find . -name \*.su | xargs awk '{ printf "%6d %s\n", $2, $1 }' | sort -n .if ${MACHINE} != "vax" # GCC/vax 8.4 does not support -fstack-usage. CFLAGS+= ${${ACTIVE_CC} == "gcc":? -fstack-usage -Wstack-usage=3584 :} .endif CWARNFLAGS+= -Walloca # XXX .if defined(HAVE_GCC) || defined(HAVE_LLVM) CFLAGS+= -fno-strict-aliasing CFLAGS+= -fno-common .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 ${ALLFILES:M*.c:T:M$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 KCOMPILE.c= ${CC} ${COPTS.${<:T}} ${CFLAGS} ${CPPFLAGS} -c $< -o $@ KCOMPILE.s= ${CC} ${AFLAGS} ${AFLAGS.${<:T}} ${CPPFLAGS} -c $< -o $@ KLINK.o= ${LD} -r ${LINKFORMAT} -Map=${.TARGET}.map -o ${.TARGET} ${.ALLSRC} # 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} ${KCOMPILE.c} ${PROF} && \ ${KCOMPILE.c} ${PROF} && \ ${COMPILE_CTFCONVERT} NOPROF_C?= @${_MKSHMSG} "compile ${.CURDIR:T}/${.TARGET}" && \ ${_MKSHECHO} ${KCOMPILE.c} && \ ${KCOMPILE.c} && \ ${COMPILE_CTFCONVERT} NORMAL_S?= @${_MKSHMSG} "compile ${.CURDIR:T}/${.TARGET}" && \ ${_MKSHECHO} ${KCOMPILE.s} && \ ${KCOMPILE.s} # link rules: LINK_O?= @${_MKSHMSG} " link ${.CURDIR:T}/${.TARGET}" && \ ${_MKSHECHO} ${KLINK.o} && \ ${KLINK.o} ## ## (3) libkern ## ## Set OPT_MODULAR in the port Makefile if module(7) is enabled, ## 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} ## ## (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. ## .if !defined(___USE_SUFFIX_RULES___) _MD_OBJS= ${MD_OBJS:T} .else _MD_OBJS= ${MD_OBJS} .endif ## ## (5) link settings ## ## TEXTADDR (or LOADADDRESS), LINKFORMAT, LINKSCRIPT, 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} swapxxxx.o vers.o build_kernel SYSTEM_LIB= ${MD_LIBS} ${LIBKERN} SYSTEM_OBJ?= ${_MD_OBJS} ${OBJS} ${SYSTEM_LIB} SYSTEM_DEP+= Makefile ${SYSTEM_OBJ:O} .if defined(CTFMERGE) SYSTEM_CTFMERGE= ${CTFMERGE} ${CTFMFLAGS} -o ${.TARGET} ${SYSTEM_OBJ} ${EXTRA_OBJ} vers.o .else SYSTEM_CTFMERGE= ${_MKSHECHO} .endif REMOVE_SWAP= [@] .for k in ${KERNELS} REMOVE_SWAP:= ${REMOVE_SWAP}:Nswap${k}.o .endfor SYSTEM_LD_HEAD?=@rm -f $@ SYSTEM_LD?= ${_MKSHMSG} " link ${.CURDIR:T}/${.TARGET}"; \ ${_MKSHECHO}\ ${LD} -Map ${.TARGET}.map --cref ${LINKFLAGS} -o ${.TARGET} \ '$${SYSTEM_OBJ:${REMOVE_SWAP}}' '$${EXTRA_OBJ}' vers.o \ ${OBJS:M*swap${.TARGET}.o}; \ ${LD} -Map ${.TARGET}.map --cref ${LINKFLAGS} -o ${.TARGET} \ ${SYSTEM_OBJ:${REMOVE_SWAP}} ${EXTRA_OBJ} vers.o \ ${OBJS:M*swap${.TARGET}.o} TEXTADDR?= ${LOADADDRESS} # backwards compatibility LINKTEXT?= ${TEXTADDR:C/.+/-Ttext &/} LINKDATA?= ${DATAADDR:C/.+/-Tdata &/} ENTRYPOINT?= start LINKENTRY?= ${ENTRYPOINT:C/.+/-e &/} LINKFLAGS?= ${LINKFORMAT} ${LINKSCRIPT} ${LINKTEXT} ${LINKDATA} ${LINKENTRY} \ ${EXTRA_LINKFLAGS} LINKFLAGS_DEBUG?= -X KERNEL_CONFIG?= ${KERNEL_BUILD:T} SYSTEM_LD_TAIL?= @${_MKSHECHO} OBJCOPY_STRIPFLAGS?= -g # Strip some architecture-defined symbols from kernel image, while # keep them in netbsd.gdb. .if defined(ARCH_STRIP_SYMBOLS) .if empty(DEBUG:M-g*) SYSTEM_LD_TAIL+= && ${OBJCOPY} -w ${ARCH_STRIP_SYMBOLS} $@ .endif OBJCOPY_STRIPFLAGS+= -w ${ARCH_STRIP_SYMBOLS} .endif SYSTEM_LD_TAIL+= && ${TOOL_SED} \ '/const char sccs/!d;s/.*@(.)//;s/" "//;s/\\.*//' vers.c && \ ${SIZE} $@ && ${SYSTEM_CTFMERGE} && chmod 755 $@ && \ runit() { echo $$@; $$@; } SYSTEM_LD_TAIL_DEBUG?=&& \ runit mv -f $@ $@.gdb && \ runit ${OBJCOPY} --only-keep-debug $@.gdb $@-${KERNEL_CONFIG}.debug && \ runit ${OBJCOPY} ${OBJCOPY_STRIPFLAGS} -p -R .gnu_debuglink \ --add-gnu-debuglink=$@-${KERNEL_CONFIG}.debug $@.gdb $@ && \ runit chmod 755 $@ $@.gdb $@-${KERNEL_CONFIG}.debug LINKFLAGS_NORMAL?= -S STRIPFLAGS?= -g .if !empty(DEBUG:M-g*) SYSTEM_LD_TAIL+=${SYSTEM_LD_TAIL_DEBUG} LINKFLAGS+= ${LINKFLAGS_DEBUG} EXTRA_KERNELS+= ${KERNELS:@.KERNEL.@${.KERNEL.}.gdb@} CTFFLAGS+= -g TARGETSFX= .gdb .elifndef PROF LINKFLAGS+= ${LINKFLAGS_NORMAL} .endif .if ${MKDEBUG:Uno} == "yes" # XXX: KERNEL_DIR? debuginstall: install-kernel-debug .for k in ${KERNELS} install-kernel-debug: ${DESTDIR}${DEBUGDIR}/${k}-${KERNEL_CONFIG}.debug ${DESTDIR}${DEBUGDIR}/${k}-${KERNEL_CONFIG}.debug: ${k}-${KERNEL_CONFIG}.debug ${_MKTARGET_INSTALL} ${INSTALL_FILE} -o root -g bin -m 444 ${.ALLSRC} ${.TARGET} .endfor .else debuginstall: .endif SYSTEM_LD_HEAD+= ${SYSTEM_LD_HEAD_EXTRA} SYSTEM_LD_TAIL_STAGE1= ${SYSTEM_LD_TAIL} SYSTEM_LD_TAIL_STAGE2= ${SYSTEM_LD_TAIL} .if defined(COPY_SYMTAB) SYSTEM_LD_TAIL_STAGE2+= && runit ${DBSYM} $@ .if !empty(DEBUG:M-g) SYSTEM_LD_TAIL_STAGE2+= && runit ${DBSYM} $@.gdb .endif .endif SYSTEM_LD_TAIL_STAGE2+= ${SYSTEM_LD_TAIL_EXTRA} ## ## (6) port independent targets and dependencies: assym.h, vers.o ## .if !defined(___USE_SUFFIX_RULES___) # Generate list of *.o files to pass to ${LD}, preserving order. # x/y/z/a.[csS] -> a.[csS] # a.[csS] -> a.o OBJS= ${ALLFILES:C|^.*/([^/]*\.[csS])$|\1|:C|^(.*)\.[csS]$|\1.o|} CFILES= ${ALLFILES:M*.c} SFILES= ${ALLFILES:M*.[sS]} OFILES= ${ALLFILES:M*.o} # absolute, generated (build directory), relative (under $S) _CFILES=${CFILES:M/*} ${CFILES:N/*:N*/*} ${CFILES:N/*:M*/*:C|^|$S/|} _SFILES=${SFILES:M/*} ${SFILES:N/*:N*/*} ${SFILES:N/*:M*/*:C|^|$S/|} _MD_CFILES=${MD_CFILES} _MD_SFILES=${MD_SFILES} CSRCS= ${_MD_CFILES} ${_CFILES} SSRCS= ${_MD_SFILES} ${_SFILES} SRCS= ${CSRCS} ${SSRCS} .else # ___USE_SUFFIX_RULES___ OBJS= ${ALLFILES:C|\.[csS]$|.o|} SRCS= ${ALLFILES:M*.[csS]} .endif # ___USE_SUFFIX_RULES___ .if !defined(___USE_SUFFIX_RULES___) .for _s in ${_CFILES} .if !commands(${_s:T:R}.o) ${_s:T:R}.o: ${_s} ${NORMAL_C} .endif .endfor .for _s in ${_SFILES} .if !commands(${_s:T:R}.o) ${_s:T:R}.o: ${_s} ${NORMAL_S} .endif .endfor .endif # !___USE_SUFFIX_RULES___ .include "${S}/conf/ldscript.mk" .include "${S}/conf/assym.mk" .include "${S}/conf/newvers.mk" .include "${S}/dev/splash/splash.mk" .include "${S}/conf/mdroot.mk" .include "${S}/conf/lint.mk" .include "${S}/conf/cscope.mk" .include "${S}/conf/gdbinit.mk" .include "${S}/conf/ssp.mk" .if "${_SKIP_DTS}" != "yes" .include "${S}/conf/dts.mk" .endif .include "${S}/conf/copts.mk" ## ## (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. ## ## ## clean ## .if !target(__CLEANKERNEL) __CLEANKERNEL: .USE ${_MKMSG} "${.TARGET}ing the kernel objects" rm -f ${KERNELS} *.map *.[io] *.ko *.ln [a-z]*.s *.su vers.c \ eddep tags [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 ## ## depend ## .if !target(.depend) MKDEP_AFLAGS?= ${AFLAGS} MKDEP_CFLAGS?= ${CFLAGS} .if !defined(___USE_SUFFIX_RULES___) DEPS+= ${SRCS:T:R:S/$/.d/g} .else DEPS+= ${SRCS:R:S/$/.d/g} .endif .if !defined(___USE_SUFFIX_RULES___) .for _s in ${SSRCS} .if !commands(${_s:T:R}.d) ${_s:T:R}.d: ${_s} ${_MKTARGET_CREATE} ${MKDEP} -f ${.TARGET}.tmp -- ${MKDEP_AFLAGS} \ ${CPPFLAGS} ${CPPFLAGS.${_s:T}} ${_s} mv -f ${.TARGET}.tmp ${.TARGET} .endif .endfor .for _s in ${CSRCS} .if !commands(${_s:T:R}.d) ${_s:T:R}.d: ${_s} ${_MKTARGET_CREATE} ${MKDEP} -f ${.TARGET}.tmp -- ${MKDEP_CFLAGS} \ ${CPPFLAGS} ${CPPFLAGS.${_s:T}} ${_s} mv -f ${.TARGET}.tmp ${.TARGET} .endif .endfor .endif # !___USE_SUFFIX_RULES___ .depend: ${DEPS:O} ${_MKTARGET_CREATE} echo "${.ALLSRC}" | ${MKDEP} -D .endif ## ## install ## # List of kernel images that will be installed into the root file system. # Some platforms may need to install more than one (e.g. a netbsd.aout file # to be loaded directly by the firmware), so this can be overridden by them. KERNIMAGES?= netbsd .if !target(install) # The install target can be redefined by putting a # install-kernel-${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} .if ${KERNEL_DIR:Uno} == "yes" rm -fr ${DESTDIR}/o${_K} mv ${DESTDIR}/${_K} ${DESTDIR}/o${_K} mkdir -p ${DESTDIR}/${_K} cp ${_K} ${DESTDIR}/${_K}/kernel .else rm -f ${DESTDIR}/o${_K} ln ${DESTDIR}/${_K} ${DESTDIR}/o${_K} cp ${_K} ${DESTDIR}/n${_K} mv ${DESTDIR}/n${_K} ${DESTDIR}/${_K} .endif .endfor .endif .endif ## ## the kernel ## AFLAGS+= ${AOPTS.${.IMPSRC:T}} CFLAGS+= ${COPTS.${.IMPSRC:T}} ${CPUFLAGS.${.IMPSRC:T}} CPPFLAGS+= ${CPPFLAGS.${.IMPSRC:T}} CWARNFLAGS+= ${CWARNFLAGS.${.IMPSRC:T}} .for _v in COPTS CPPFLAGS CWARNFLAGS .for _c in ${CSRCS} ${_v}.${_c:T}+=${OPT.${_c:T}:@.o.@${${_v}.${.o.}}@} .endfor .endfor .MAIN: all all: .gdbinit .for k in ${KERNELS} all: .WAIT ${k} ${k}: ${SYSTEM_DEP:O} swap${k}.o vers.o build_kernel #${MKLINT:Myes:%=lint} .endfor .if !defined(COPY_SYMTAB) build_kernel: .USE ${SYSTEM_LD_HEAD} ${SYSTEM_LD} ${SYSTEM_LD_TAIL_STAGE2} .else .for k in ${KERNELS} ${k}: $S/kern/kern_ksyms_buf.c .endfor build_kernel: .USE ${CC} ${CFLAGS} ${CPPFLAGS} \ -c $S/kern/kern_ksyms_buf.c -o kern_ksyms_buf.o ${SYSTEM_LD_HEAD} ${SYSTEM_LD} kern_ksyms_buf.o ${SYSTEM_LD_TAIL_STAGE1} ${CC} ${CFLAGS} ${CPPFLAGS} \ -DSYMTAB_SPACE=$$(${DBSYM} -P ${.TARGET}${TARGETSFX}) \ -c $S/kern/kern_ksyms_buf.c -o kern_ksyms_buf_real.o ${SYSTEM_LD_HEAD} ${SYSTEM_LD} kern_ksyms_buf_real.o ${SYSTEM_LD_TAIL_STAGE2} .endif .include .include ## ## suffix rules ## .if defined(___USE_SUFFIX_RULES___) .SUFFIXES: .s .d .s.d: ${_MKTARGET_CREATE} ${MKDEP} -f $@.tmp -- ${MKDEP_AFLAGS} ${CPPFLAGS} ${CPPFLAGS.${<:T}} $< mv -f $@.tmp $@ .SUFFIXES: .S .d .S.d: ${_MKTARGET_CREATE} ${MKDEP} -f $@.tmp -- ${MKDEP_AFLAGS} ${CPPFLAGS} ${CPPFLAGS.${<:T}} $< mv -f $@.tmp $@ .SUFFIXES: .c .d .c.d: ${_MKTARGET_CREATE} ${MKDEP} -f $@.tmp -- ${MKDEP_CFLAGS} ${CPPFLAGS} ${CPPFLAGS.${<:T}} $< mv -f $@.tmp $@ .SUFFIXES: .c .o .go .po .c.o: @${_MKSHMSG} "compile ${.CURDIR:T}/${.TARGET}" @${_MKSHECHO} ${KCOMPILE.c} @${KCOMPILE.c} @${COMPILE_CTFCONVERT} .c.go: @${_MKSHMSG} "compile ${.CURDIR:T}/${.TARGET}" @${_MKSHECHO} ${KCOMPILE.c} -g @${KCOMPILE.c} -g @${COMPILE_CTFCONVERT} .c.po: @${_MKSHMSG} "compile ${.CURDIR:T}/${.TARGET}" @${_MKSHECHO} ${KCOMPILE.c} -pg @${KCOMPILE.c} -pg @${COMPILE_CTFCONVERT} .SUFFIXES: .s .o .go .po .s.o: @${_MKSHMSG} "compile ${.CURDIR:T}/${.TARGET}" @${_MKSHECHO} ${KCOMPILE.s} @${KCOMPILE.s} .s.go: @${_MKSHMSG} "compile ${.CURDIR:T}/${.TARGET}" @${_MKSHECHO} ${KCOMPILE.s} -g @${KCOMPILE.s} -g .s.po: @${_MKSHMSG} "compile ${.CURDIR:T}/${.TARGET}" @${_MKSHECHO} ${KCOMPILE.s} -pg @${KCOMPILE.s} -pg .S.o: @${_MKSHMSG} "compile ${.CURDIR:T}/${.TARGET}" @${_MKSHECHO} ${KCOMPILE.s} @${KCOMPILE.s} .S.go: @${_MKSHMSG} "compile ${.CURDIR:T}/${.TARGET}" @${_MKSHECHO} ${KCOMPILE.s} -g @${KCOMPILE.s} -g .S.po: @${_MKSHMSG} "compile ${.CURDIR:T}/${.TARGET}" @${_MKSHECHO} ${KCOMPILE.s} -pg @${KCOMPILE.s} -pg .endif # ___USE_SUFFIX_RULES___ ## ## the end ##