cc4a90c445
this option from all modules that enable it theirselves. In C mode -fms-extensions option enables anonymous structs and unions, allowing us to use this C11 feature in kernel. Of course, clang supports it without any extra options. Reviewed by: dim
204 lines
6.7 KiB
Makefile
204 lines
6.7 KiB
Makefile
# $FreeBSD$
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# Part of a unified Makefile for building kernels. This part contains all
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# of the definitions that need to be before %BEFORE_DEPEND.
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# Allow user to configure things that only effect src tree builds.
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# Note: This is duplicated from src.sys.mk to ensure that we include
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# /etc/src.conf when building the kernel. Kernels can be built without
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# the rest of /usr/src, but they still always process SRCCONF even though
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# the normal mechanisms to prevent that (compiling out of tree) won't
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# work. To ensure they do work, we have to duplicate thee few lines here.
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SRCCONF?= /etc/src.conf
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.if (exists(${SRCCONF}) || ${SRCCONF} != "/etc/src.conf") && !target(_srcconf_included_)
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.include "${SRCCONF}"
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_srcconf_included_:
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.endif
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.include <bsd.own.mk>
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.include <bsd.compiler.mk>
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.include "kern.opts.mk"
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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/${KERNEL}
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LDSCRIPT_NAME?= ldscript.$M
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LDSCRIPT?= $S/conf/${LDSCRIPT_NAME}
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M= ${MACHINE_CPUARCH}
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AWK?= awk
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CP?= cp
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LINT?= lint
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NM?= nm
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OBJCOPY?= objcopy
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SIZE?= size
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.if defined(DEBUG)
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_MINUS_O= -O
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CTFFLAGS+= -g
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.else
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.if ${MACHINE_CPUARCH} == "powerpc"
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_MINUS_O= -O # gcc miscompiles some code at -O2
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.else
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_MINUS_O= -O2
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.endif
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.endif
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.if ${MACHINE_CPUARCH} == "amd64"
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.if ${COMPILER_TYPE} == "clang"
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COPTFLAGS?=-O2 -pipe
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.else
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COPTFLAGS?=-O2 -frename-registers -pipe
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.endif
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.else
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COPTFLAGS?=${_MINUS_O} -pipe
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.endif
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.if !empty(COPTFLAGS:M-O[23s]) && empty(COPTFLAGS:M-fno-strict-aliasing)
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COPTFLAGS+= -fno-strict-aliasing
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.endif
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.if !defined(NO_CPU_COPTFLAGS)
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COPTFLAGS+= ${_CPUCFLAGS}
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.endif
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NOSTDINC= -nostdinc
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INCLUDES= ${NOSTDINC} ${INCLMAGIC} -I. -I$S
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# This hack lets us use the OpenBSD altq code without spamming a new
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# include path into contrib'ed source files.
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INCLUDES+= -I$S/contrib/altq
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.if make(depend) || make(kernel-depend)
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# ... and the same for ipfilter
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INCLUDES+= -I$S/contrib/ipfilter
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# ... and the same for ath
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INCLUDES+= -I$S/dev/ath -I$S/dev/ath/ath_hal -I$S/contrib/dev/ath/ath_hal
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# ... and the same for the NgATM stuff
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INCLUDES+= -I$S/contrib/ngatm
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# ... and the same for vchiq
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INCLUDES+= -I$S/contrib/vchiq
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# ... and the same for twa
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INCLUDES+= -I$S/dev/twa
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# ... and the same for cxgb and cxgbe
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INCLUDES+= -I$S/dev/cxgb -I$S/dev/cxgbe
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.endif
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CFLAGS= ${COPTFLAGS} ${DEBUG} ${CWARNFLAGS}
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CFLAGS+= ${INCLUDES} -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h
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CFLAGS_PARAM_INLINE_UNIT_GROWTH?=100
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CFLAGS_PARAM_LARGE_FUNCTION_GROWTH?=1000
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.if ${MACHINE_CPUARCH} == "mips"
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CFLAGS_ARCH_PARAMS?=--param max-inline-insns-single=1000
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.endif
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CFLAGS.gcc+= -fno-common -fms-extensions -finline-limit=${INLINE_LIMIT}
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CFLAGS.gcc+= --param inline-unit-growth=${CFLAGS_PARAM_INLINE_UNIT_GROWTH}
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CFLAGS.gcc+= --param large-function-growth=${CFLAGS_PARAM_LARGE_FUNCTION_GROWTH}
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.if defined(CFLAGS_ARCH_PARAMS)
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CFLAGS.gcc+=${CFLAGS_ARCH_PARAMS}
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.endif
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WERROR?= -Werror
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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} ${ASM_CFLAGS.${.IMPSRC:T}}
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.if defined(PROFLEVEL) && ${PROFLEVEL} >= 1
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CFLAGS+= -DGPROF
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CFLAGS.gcc+= -falign-functions=16
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.if ${PROFLEVEL} >= 2
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CFLAGS+= -DGPROF4 -DGUPROF
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PROF= -pg
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.if ${COMPILER_TYPE} == "gcc"
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PROF+= -mprofiler-epilogue
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.endif
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.else
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PROF= -pg
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.endif
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.endif
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DEFINED_PROF= ${PROF}
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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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# Optional linting. This can be overridden in /etc/make.conf.
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LINTFLAGS= ${LINTOBJKERNFLAGS}
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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= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \
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${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c
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NORMAL_FW= uudecode -o ${.TARGET} ${.ALLSRC}
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NORMAL_FWO= ${LD} -b binary --no-warn-mismatch -d -warn-common -r \
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-o ${.TARGET} ${.ALLSRC:M*.fw}
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# Special flags for managing the compat compiles for ZFS
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ZFS_CFLAGS= -DFREEBSD_NAMECACHE -DBUILDING_ZFS -nostdinc -I$S/cddl/compat/opensolaris -I$S/cddl/contrib/opensolaris/uts/common/fs/zfs -I$S/cddl/contrib/opensolaris/uts/common/zmod -I$S/cddl/contrib/opensolaris/uts/common -I$S -I$S/cddl/contrib/opensolaris/common/zfs -I$S/cddl/contrib/opensolaris/common ${CFLAGS} -Wno-unknown-pragmas -Wno-missing-prototypes -Wno-undef -Wno-strict-prototypes -Wno-cast-qual -Wno-parentheses -Wno-redundant-decls -Wno-missing-braces -Wno-uninitialized -Wno-unused -Wno-inline -Wno-switch -Wno-pointer-arith -Wno-unknown-pragmas
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ZFS_CFLAGS+= -include $S/cddl/compat/opensolaris/sys/debug_compat.h
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ZFS_ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${ZFS_CFLAGS}
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ZFS_C= ${CC} -c ${ZFS_CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
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ZFS_S= ${CC} -c ${ZFS_ASM_CFLAGS} ${WERROR} ${.IMPSRC}
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.if ${MK_CTF} != "no"
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NORMAL_CTFCONVERT= ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
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.elif ${MAKE_VERSION} >= 5201111300
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NORMAL_CTFCONVERT=
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.else
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NORMAL_CTFCONVERT= @:
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.endif
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NORMAL_LINT= ${LINT} ${LINTFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC}
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# Infiniband C flags. Correct include paths and omit errors that linux
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# does not honor.
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OFEDINCLUDES= -I$S/ofed/include/
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OFEDNOERR= -Wno-cast-qual -Wno-pointer-arith
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OFEDCFLAGS= ${CFLAGS:N-I*} ${OFEDINCLUDES} ${CFLAGS:M-I*} ${OFEDNOERR}
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OFED_C_NOIMP= ${CC} -c -o ${.TARGET} ${OFEDCFLAGS} ${WERROR} ${PROF}
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OFED_C= ${OFED_C_NOIMP} ${.IMPSRC}
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GEN_CFILES= $S/$M/$M/genassym.c ${MFILES:T:S/.m$/.c/}
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SYSTEM_CFILES= config.c env.c hints.c vnode_if.c
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SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
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SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS}
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SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o}
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SYSTEM_OBJS+= hack.So
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SYSTEM_LD= @${LD} -Bdynamic -T ${LDSCRIPT} ${_LDFLAGS} --no-warn-mismatch \
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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} ${.TARGET} ; chmod 755 ${.TARGET}
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SYSTEM_DEP+= ${LDSCRIPT}
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# MKMODULESENV is set here so that port makefiles can augment
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# them.
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MKMODULESENV+= MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR}
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MKMODULESENV+= MACHINE_CPUARCH=${MACHINE_CPUARCH}
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MKMODULESENV+= MACHINE=${MACHINE} MACHINE_ARCH=${MACHINE_ARCH}
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MKMODULESENV+= MODULES_EXTRA="${MODULES_EXTRA}" WITHOUT_MODULES="${WITHOUT_MODULES}"
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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_FLAGS="${DEBUG}"
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.endif
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# Detect kernel config options that force stack frames to be turned on.
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DDB_ENABLED!= grep DDB opt_ddb.h || true ; echo
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DTR_ENABLED!= grep KDTRACE_FRAME opt_kdtrace.h || true ; echo
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HWPMC_ENABLED!= grep HWPMC opt_hwpmc_hooks.h || true ; echo
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