1# $FreeBSD$ 2 3# Part of a unified Makefile for building kernels. This part contains all 4# of the definitions that need to be before %BEFORE_DEPEND. 5 6# Allow user to configure things that only effect src tree builds. 7# Note: This is duplicated from src.sys.mk to ensure that we include 8# /etc/src.conf when building the kernel. Kernels can be built without 9# the rest of /usr/src, but they still always process SRCCONF even though 10# the normal mechanisms to prevent that (compiling out of tree) won't 11# work. To ensure they do work, we have to duplicate thee few lines here. 12SRCCONF?= /etc/src.conf 13.if (exists(${SRCCONF}) || ${SRCCONF} != "/etc/src.conf") && !target(_srcconf_included_) 14.include "${SRCCONF}" 15_srcconf_included_: 16.endif 17 18.include <bsd.own.mk> 19.include <bsd.compiler.mk> 20.include "kern.opts.mk" 21 22# Can be overridden by makeoptions or /etc/make.conf 23KERNEL_KO?= kernel 24KERNEL?= kernel 25KODIR?= /boot/${KERNEL} 26LDSCRIPT_NAME?= ldscript.$M 27LDSCRIPT?= $S/conf/${LDSCRIPT_NAME} 28 29M= ${MACHINE_CPUARCH} 30 31AWK?= awk 32CP?= cp 33LINT?= lint 34NM?= nm 35OBJCOPY?= objcopy 36SIZE?= size 37 38.if defined(DEBUG) 39_MINUS_O= -O 40CTFFLAGS+= -g 41.else 42.if ${MACHINE_CPUARCH} == "powerpc" 43_MINUS_O= -O # gcc miscompiles some code at -O2 44.else 45_MINUS_O= -O2 46.endif 47.endif 48.if ${MACHINE_CPUARCH} == "amd64" 49.if ${COMPILER_TYPE} == "clang" 50COPTFLAGS?=-O2 -pipe 51.else 52COPTFLAGS?=-O2 -frename-registers -pipe 53.endif 54.else 55COPTFLAGS?=${_MINUS_O} -pipe 56.endif 57.if !empty(COPTFLAGS:M-O[23s]) && empty(COPTFLAGS:M-fno-strict-aliasing) 58COPTFLAGS+= -fno-strict-aliasing 59.endif 60.if !defined(NO_CPU_COPTFLAGS) 61COPTFLAGS+= ${_CPUCFLAGS} 62.endif 63NOSTDINC= -nostdinc 64 65INCLUDES= ${NOSTDINC} ${INCLMAGIC} -I. -I$S 66 67# This hack lets us use the OpenBSD altq code without spamming a new 68# include path into contrib'ed source files. 69INCLUDES+= -I$S/contrib/altq 70 71.if make(depend) || make(kernel-depend) 72 73# ... and the same for ipfilter 74INCLUDES+= -I$S/contrib/ipfilter 75 76# ... and the same for ath 77INCLUDES+= -I$S/dev/ath -I$S/dev/ath/ath_hal -I$S/contrib/dev/ath/ath_hal 78 79# ... and the same for the NgATM stuff 80INCLUDES+= -I$S/contrib/ngatm 81 82# ... and the same for twa 83INCLUDES+= -I$S/dev/twa 84 85# ... and the same for cxgb and cxgbe 86INCLUDES+= -I$S/dev/cxgb -I$S/dev/cxgbe 87 88.endif 89 90CFLAGS= ${COPTFLAGS} ${DEBUG} ${CWARNFLAGS} 91CFLAGS+= ${INCLUDES} -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h 92CFLAGS_PARAM_INLINE_UNIT_GROWTH?=100 93CFLAGS_PARAM_LARGE_FUNCTION_GROWTH?=1000 94.if ${MACHINE_CPUARCH} == "mips" 95CFLAGS_ARCH_PARAMS?=--param max-inline-insns-single=1000 96.endif 97CFLAGS.gcc+= -fno-common -finline-limit=${INLINE_LIMIT} 98CFLAGS.gcc+= --param inline-unit-growth=${CFLAGS_PARAM_INLINE_UNIT_GROWTH} 99CFLAGS.gcc+= --param large-function-growth=${CFLAGS_PARAM_LARGE_FUNCTION_GROWTH} 100.if defined(CFLAGS_ARCH_PARAMS) 101CFLAGS.gcc+=${CFLAGS_ARCH_PARAMS} 102.endif 103WERROR?= -Werror 104 105# XXX LOCORE means "don't declare C stuff" not "for locore.s". 106ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS} 107 108.if ${COMPILER_TYPE} == "clang" 109CLANG_NO_IAS= -no-integrated-as 110.else 111GCC_MS_EXTENSIONS= -fms-extensions 112.endif 113 114.if defined(PROFLEVEL) && ${PROFLEVEL} >= 1 115CFLAGS+= -DGPROF 116CFLAGS.gcc+= -falign-functions=16 117.if ${PROFLEVEL} >= 2 118CFLAGS+= -DGPROF4 -DGUPROF 119PROF= -pg 120.if ${COMPILER_TYPE} == "gcc" 121PROF+= -mprofiler-epilogue 122.endif 123.else 124PROF= -pg 125.endif 126.endif 127DEFINED_PROF= ${PROF} 128 129# Put configuration-specific C flags last (except for ${PROF}) so that they 130# can override the others. 131CFLAGS+= ${CONF_CFLAGS} 132 133# Optional linting. This can be overridden in /etc/make.conf. 134LINTFLAGS= ${LINTOBJKERNFLAGS} 135 136NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.IMPSRC} 137NORMAL_S= ${CC} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC} 138PROFILE_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC} 139NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC} 140 141NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \ 142 ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c 143 144NORMAL_FW= uudecode -o ${.TARGET} ${.ALLSRC} 145NORMAL_FWO= ${LD} -b binary --no-warn-mismatch -d -warn-common -r \ 146 -o ${.TARGET} ${.ALLSRC:M*.fw} 147 148# Special flags for managing the compat compiles for ZFS 149ZFS_CFLAGS= -DFREEBSD_NAMECACHE -DBUILDING_ZFS -nostdinc -I$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 150ZFS_CFLAGS+= -include $S/cddl/compat/opensolaris/sys/debug_compat.h 151ZFS_ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${ZFS_CFLAGS} 152ZFS_C= ${CC} -c ${ZFS_CFLAGS} ${WERROR} ${PROF} ${.IMPSRC} 153ZFS_S= ${CC} -c ${ZFS_ASM_CFLAGS} ${WERROR} ${.IMPSRC} 154 155.if ${MK_CTF} != "no" 156NORMAL_CTFCONVERT= ${CTFCONVERT} ${CTFFLAGS} ${.TARGET} 157.elif ${MAKE_VERSION} >= 5201111300 158NORMAL_CTFCONVERT= 159.else 160NORMAL_CTFCONVERT= @: 161.endif 162 163NORMAL_LINT= ${LINT} ${LINTFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC} 164 165# Infiniband C flags. Correct include paths and omit errors that linux 166# does not honor. 167OFEDINCLUDES= -I$S/ofed/include/ 168OFEDNOERR= -Wno-cast-qual -Wno-pointer-arith ${GCC_MS_EXTENSIONS} 169OFEDCFLAGS= ${CFLAGS:N-I*} ${OFEDINCLUDES} ${CFLAGS:M-I*} ${OFEDNOERR} 170OFED_C_NOIMP= ${CC} -c -o ${.TARGET} ${OFEDCFLAGS} ${WERROR} ${PROF} 171OFED_C= ${OFED_C_NOIMP} ${.IMPSRC} 172 173GEN_CFILES= $S/$M/$M/genassym.c ${MFILES:T:S/.m$/.c/} 174SYSTEM_CFILES= config.c env.c hints.c vnode_if.c 175SYSTEM_DEP= Makefile ${SYSTEM_OBJS} 176SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS} 177SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o} 178SYSTEM_OBJS+= hack.So 179SYSTEM_LD= @${LD} -Bdynamic -T ${LDSCRIPT} ${_LDFLAGS} --no-warn-mismatch \ 180 -warn-common -export-dynamic -dynamic-linker /red/herring \ 181 -o ${.TARGET} -X ${SYSTEM_OBJS} vers.o 182SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \ 183 ${SIZE} ${.TARGET} ; chmod 755 ${.TARGET} 184SYSTEM_DEP+= ${LDSCRIPT} 185 186# MKMODULESENV is set here so that port makefiles can augment 187# them. 188 189MKMODULESENV+= MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR} 190MKMODULESENV+= MACHINE_CPUARCH=${MACHINE_CPUARCH} 191MKMODULESENV+= MACHINE=${MACHINE} MACHINE_ARCH=${MACHINE_ARCH} 192.if (${KERN_IDENT} == LINT) 193MKMODULESENV+= ALL_MODULES=LINT 194.endif 195.if defined(MODULES_OVERRIDE) 196MKMODULESENV+= MODULES_OVERRIDE="${MODULES_OVERRIDE}" 197.endif 198.if defined(WITHOUT_MODULES) 199MKMODULESENV+= WITHOUT_MODULES="${WITHOUT_MODULES}" 200.endif 201.if defined(DEBUG) 202MKMODULESENV+= DEBUG_FLAGS="${DEBUG}" 203.endif 204 205# Detect kernel config options that force stack frames to be turned on. 206DDB_ENABLED!= grep DDB opt_ddb.h || true ; echo 207DTR_ENABLED!= grep KDTRACE_FRAME opt_kdtrace.h || true ; echo 208HWPMC_ENABLED!= grep HWPMC opt_hwpmc_hooks.h || true ; echo 209