freebsd-nq/sys/conf/kern.pre.mk
Alexander Leidinger 21edb039c6 WITH_CTF can now be specified in src.conf (not recommended, there
are some problems with static executables), make.conf (would also
affect ports which do not use GNU make and do not override the
compile targets) or in the kernel config (via "makeoptions
WITH_CTF=yes").

Additional (related) changes:
 - propagate WITH_CTF to module builds
 - do not add -g to the linker flags, it's a noop there anyway
   (at least according to the man page of ld)
 - do not add -g to CFLAGS unconditionally
   we need to have a look if it is really needed (IMO not) or if there
   is a way to add it only when WITH_CTF is used

Note: ctfconvert / ctfmerge lines will not appear in the build output,
to protect the innocent (those which do not build with WITH_CTF would
see the shell-test and may think WITH_CTF is used).

Reviewed by:	imp, jhb, scottl (earlier version)
Discussed on:	arch@
2010-04-02 06:55:31 +00:00

162 lines
4.2 KiB
Makefile

# $FreeBSD$
# Part of a unified Makefile for building kernels. This part contains all
# of the definitions that need to be before %BEFORE_DEPEND.
.include <bsd.own.mk>
# Can be overridden by makeoptions or /etc/make.conf
KERNEL_KO?= kernel
KERNEL?= kernel
KODIR?= /boot/${KERNEL}
LDSCRIPT_NAME?= ldscript.$M
LDSCRIPT?= $S/conf/${LDSCRIPT_NAME}
M= ${MACHINE_ARCH}
AWK?= awk
LINT?= lint
NM?= nm
OBJCOPY?= objcopy
SIZE?= size
.if ${CC} == "icc"
COPTFLAGS?= -O
.else
. if defined(DEBUG)
_MINUS_O= -O
CTFFLAGS+= -g
. else
_MINUS_O= -O2
. endif
. if ${MACHINE_ARCH} == "amd64"
COPTFLAGS?=-O2 -frename-registers -pipe
. else
COPTFLAGS?=${_MINUS_O} -pipe
. endif
. if !empty(COPTFLAGS:M-O[23s]) && empty(COPTFLAGS:M-fno-strict-aliasing)
COPTFLAGS+= -fno-strict-aliasing
. endif
.endif
.if !defined(NO_CPU_COPTFLAGS)
. if ${CC} == "icc"
COPTFLAGS+= ${_ICC_CPUCFLAGS:C/(-x[^M^K^W]+)[MKW]+|-x[MKW]+/\1/}
. else
COPTFLAGS+= ${_CPUCFLAGS}
. endif
.endif
.if ${CC} == "icc"
C_DIALECT=
NOSTDINC= -X
.else
C_DIALECT= -std=c99
NOSTDINC= -nostdinc
.endif
INCLUDES= ${NOSTDINC} ${INCLMAGIC} -I. -I$S
# This hack lets us use the OpenBSD altq code without spamming a new
# include path into contrib'ed source files.
INCLUDES+= -I$S/contrib/altq
.if make(depend) || make(kernel-depend)
# ... and the same for ipfilter
INCLUDES+= -I$S/contrib/ipfilter
# ... and the same for pf
INCLUDES+= -I$S/contrib/pf
# ... and the same for ath
INCLUDES+= -I$S/dev/ath -I$S/dev/ath/ath_hal
# ... and the same for the NgATM stuff
INCLUDES+= -I$S/contrib/ngatm
# .. and the same for twa
INCLUDES+= -I$S/dev/twa
# ... and XFS
INCLUDES+= -I$S/gnu/fs/xfs/FreeBSD -I$S/gnu/fs/xfs/FreeBSD/support -I$S/gnu/fs/xfs
# ... and OpenSolaris
INCLUDES+= -I$S/contrib/opensolaris/compat
# ... and the same for cxgb
INCLUDES+= -I$S/dev/cxgb
.endif
CFLAGS= ${COPTFLAGS} ${C_DIALECT} ${DEBUG} ${CWARNFLAGS}
CFLAGS+= ${INCLUDES} -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h
.if ${CC} != "icc"
CFLAGS+= -fno-common -finline-limit=${INLINE_LIMIT}
CFLAGS+= --param inline-unit-growth=100
CFLAGS+= --param large-function-growth=1000
WERROR?= -Werror
.endif
# XXX LOCORE means "don't declare C stuff" not "for locore.s".
ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS}
.if defined(PROFLEVEL) && ${PROFLEVEL} >= 1
.if ${CC} == "icc"
.error "Profiling doesn't work with icc yet"
.endif
CFLAGS+= -DGPROF -falign-functions=16
.if ${PROFLEVEL} >= 2
CFLAGS+= -DGPROF4 -DGUPROF
PROF= -pg -mprofiler-epilogue
.else
PROF= -pg
.endif
.endif
DEFINED_PROF= ${PROF}
# Put configuration-specific C flags last (except for ${PROF}) so that they
# can override the others.
CFLAGS+= ${CONF_CFLAGS}
# Optional linting. This can be overridden in /etc/make.conf.
LINTFLAGS= ${LINTOBJKERNFLAGS}
NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
NORMAL_S= ${CC} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC}
PROFILE_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC}
NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC}
NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \
${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c
NORMAL_CTFCONVERT= [ -z "${CTFCONVERT}" -o -n "${NO_CTF}" ] || ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
NORMAL_LINT= ${LINT} ${LINTFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC}
GEN_CFILES= $S/$M/$M/genassym.c ${MFILES:T:S/.m$/.c/}
SYSTEM_CFILES= config.c env.c hints.c vnode_if.c
SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS}
SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o}
SYSTEM_OBJS+= hack.So
SYSTEM_CTFMERGE= [ -z "${CTFMERGE}" -o -n "${NO_CTF}" ] || ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJS} vers.o
SYSTEM_LD= @${LD} -Bdynamic -T ${LDSCRIPT} \
-warn-common -export-dynamic -dynamic-linker /red/herring \
-o ${.TARGET} -X ${SYSTEM_OBJS} vers.o
SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \
${SIZE} ${.TARGET} ; chmod 755 ${.TARGET}
SYSTEM_DEP+= ${LDSCRIPT}
# MKMODULESENV is set here so that port makefiles can augment
# them.
MKMODULESENV= MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR}
.if (${KERN_IDENT} == LINT)
MKMODULESENV+= ALL_MODULES=LINT
.endif
.if defined(MODULES_OVERRIDE)
MKMODULESENV+= MODULES_OVERRIDE="${MODULES_OVERRIDE}"
.endif
.if defined(DEBUG)
MKMODULESENV+= DEBUG_FLAGS="${DEBUG}"
.endif