042df2e2da
- It is opt-out for now so as to give it maximum testing, but it may be turned opt-in for stable branches depending on the consensus. You can turn it off with WITHOUT_SSP. - WITHOUT_SSP was previously used to disable the build of GNU libssp. It is harmless to steal the knob as SSP symbols have been provided by libc for a long time, GNU libssp should not have been much used. - SSP is disabled in a few corners such as system bootstrap programs (sys/boot), process bootstrap code (rtld, csu) and SSP symbols themselves. - It should be safe to use -fstack-protector-all to build world, however libc will be automatically downgraded to -fstack-protector because it breaks rtld otherwise. - This option is unavailable on ia64. Enable GCC stack protection (aka Propolice) for kernel: - It is opt-out for now so as to give it maximum testing. - Do not compile your kernel with -fstack-protector-all, it won't work. Submitted by: Jeremie Le Hen <jeremie@le-hen.org>
165 lines
4.1 KiB
Makefile
165 lines
4.1 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
|
|
. 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$S/contrib/pf
|
|
|
|
# ... and the same for Atheros HAL
|
|
INCLUDES+= -I$S/dev/ath
|
|
|
|
# ... 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
|
|
|
|
.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
|
|
|
|
.if defined(CTFCONVERT)
|
|
NORMAL_CTFCONVERT= ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
|
|
.else
|
|
NORMAL_CTFCONVERT=
|
|
.endif
|
|
|
|
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
|
|
.if defined(CTFMERGE)
|
|
SYSTEM_CTFMERGE= ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJS} vers.o
|
|
LD+= -g
|
|
.endif
|
|
SYSTEM_LD= @${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
|