97d5f630ad
to increase the lenght of the command line if needed. The setting of FMT also gets in the cross bootstrapping way for new platforms.
106 lines
2.9 KiB
Makefile
106 lines
2.9 KiB
Makefile
# kern.pre.mk
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#
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# Unified Makefile for building kenrels. This includes all the definitions
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# that need to be included before %BEFORE_DEPEND
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#
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# $FreeBSD$
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#
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# Can be overridden by makeoptions or /etc/make.conf
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KERNEL_KO?= kernel
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KERNEL?= kernel
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KODIR?= /boot/${KERNEL}
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M= ${MACHINE_ARCH}
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AWK?= awk
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NM?= nm
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OBJCOPY?= objcopy
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SIZE?= size
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COPTFLAGS?=-O -pipe
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.if !defined(NO_CPU_COPTFLAGS)
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COPTFLAGS+= ${_CPUCFLAGS}
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.endif
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INCLUDES= -nostdinc -I- ${INCLMAGIC} -I. -I$S -I$S/dev
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# This hack lets us use the Intel ACPICA code without spamming a new
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# include path into 100+ source files.
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INCLUDES+= -I$S/contrib/dev/acpica
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# ... and the same for ipfilter
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INCLUDES+= -I$S/contrib/ipfilter
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# This hack is to allow kernel compiles to succeed on machines w/out srcdist
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.if exists($S/../include)
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INCLUDES+= -I$S/../include
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.else
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INCLUDES+= -I/usr/include
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.endif
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COPTS= ${INCLUDES} ${IDENT} -D_KERNEL -ffreestanding -include opt_global.h
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CFLAGS= ${COPTFLAGS} ${CWARNFLAGS} ${DEBUG} ${COPTS} -fno-common
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# XXX LOCORE means "don't declare C stuff" not "for locore.s".
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ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS}
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# Select the correct set of tools. Can't set OBJFORMAT here because it
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# doesn't get exported into the environment, and if it were exported
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# then it might break building of utilities.
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CFLAGS+= ${FMT}
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DEFINED_PROF= ${PROF}
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.if defined(PROF)
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CFLAGS+= -malign-functions=4
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.if ${PROFLEVEL} >= 2
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IDENT+= -DGPROF4 -DGUPROF
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PROF+= -mprofiler-epilogue
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.endif
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.endif
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.if defined(NO_WERROR)
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WERROR=
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.else
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WERROR?= -Werror
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.endif
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# Put configuration-specific C flags last (except for ${PROF}) so that they
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# can override the others.
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CFLAGS+= ${CONF_CFLAGS}
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NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
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NORMAL_S= ${CC} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC}
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PROFILE_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC}
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NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC}
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NORMAL_M= perl5 $S/kern/makeobjops.pl -c $<; \
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${CC} -c ${CFLAGS} ${PROF} ${.PREFIX}.c
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GEN_CFILES= $S/$M/$M/genassym.c
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SYSTEM_CFILES= vnode_if.c hints.c env.c config.c
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SYSTEM_SFILES= $S/$M/$M/locore.s
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SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
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SYSTEM_OBJS= locore.o vnode_if.o ${OBJS} hints.o env.o config.o hack.So
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SYSTEM_LD= @${LD} ${FMT} -Bdynamic -T $S/conf/ldscript.$M \
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-warn-common -export-dynamic -dynamic-linker /red/herring \
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-o ${.TARGET} -X ${SYSTEM_OBJS} vers.o
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SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \
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${SIZE} ${FMT} ${.TARGET} ; chmod 755 ${.TARGET}
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SYSTEM_DEP+= $S/conf/ldscript.$M
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# MKMODULESENV is set here so that port makefiles can augment
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# them.
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MKMODULESENV= MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR}
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.if (${KERN_IDENT} == LINT)
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MKMODULESENV+= ALL_MODULES=LINT
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.endif
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.if defined(MODULES_OVERRIDE)
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MKMODULESENV+= MODULES_OVERRIDE="${MODULES_OVERRIDE}"
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.endif
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.if defined(DEBUG)
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MKMODULESENV+= DEBUG="${DEBUG}" DEBUG_FLAGS="${DEBUG}"
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.endif
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all: ${KERNEL_KO}
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