Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/conf/kern.pre.mk
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1 # $FreeBSD: releng/9.1/sys/conf/kern.pre.mk 233099 2012-03-17 22:29:05Z dim $ 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 .include <bsd.own.mk> 7 8 # backwards compat option for older systems. 9 MACHINE_CPUARCH?=${MACHINE_ARCH:C/mipse[lb]/mips/:C/armeb/arm/:C/powerpc64/powerpc/} 10 11 # Can be overridden by makeoptions or /etc/make.conf 12 KERNEL_KO?= kernel 13 KERNEL?= kernel 14 KODIR?= /boot/${KERNEL} 15 LDSCRIPT_NAME?= ldscript.$M 16 LDSCRIPT?= $S/conf/${LDSCRIPT_NAME} 17 18 M= ${MACHINE_CPUARCH} 19 20 AWK?= awk 21 LINT?= lint 22 NM?= nm 23 OBJCOPY?= objcopy 24 SIZE?= size 25 26 .if defined(DEBUG) 27 _MINUS_O= -O 28 CTFFLAGS+= -g 29 .else 30 .if ${MACHINE_CPUARCH} == "powerpc" 31 _MINUS_O= -O # gcc miscompiles some code at -O2 32 .else 33 _MINUS_O= -O2 34 .endif 35 .endif 36 .if ${MACHINE_CPUARCH} == "amd64" 37 .if ${MK_CLANG_IS_CC} == "no" && ${CC:T:Mclang} != "clang" 38 COPTFLAGS?=-O2 -frename-registers -pipe 39 .else 40 COPTFLAGS?=-O2 -pipe 41 .endif 42 .else 43 COPTFLAGS?=${_MINUS_O} -pipe 44 .endif 45 .if !empty(COPTFLAGS:M-O[23s]) && empty(COPTFLAGS:M-fno-strict-aliasing) 46 COPTFLAGS+= -fno-strict-aliasing 47 .endif 48 .if !defined(NO_CPU_COPTFLAGS) 49 COPTFLAGS+= ${_CPUCFLAGS} 50 .endif 51 C_DIALECT= -std=c99 52 NOSTDINC= -nostdinc 53 54 INCLUDES= ${NOSTDINC} ${INCLMAGIC} -I. -I$S 55 56 # This hack lets us use the OpenBSD altq code without spamming a new 57 # include path into contrib'ed source files. 58 INCLUDES+= -I$S/contrib/altq 59 60 .if make(depend) || make(kernel-depend) 61 62 # ... and the same for ipfilter 63 INCLUDES+= -I$S/contrib/ipfilter 64 65 # ... and the same for pf 66 INCLUDES+= -I$S/contrib/pf 67 68 # ... and the same for ath 69 INCLUDES+= -I$S/dev/ath -I$S/dev/ath/ath_hal 70 71 # ... and the same for the NgATM stuff 72 INCLUDES+= -I$S/contrib/ngatm 73 74 # ... and the same for twa 75 INCLUDES+= -I$S/dev/twa 76 77 # ... and the same for XFS 78 INCLUDES+= -I$S/gnu/fs/xfs/FreeBSD -I$S/gnu/fs/xfs/FreeBSD/support -I$S/gnu/fs/xfs 79 80 # ... and the same for cxgb and cxgbe 81 INCLUDES+= -I$S/dev/cxgb -I$S/dev/cxgbe 82 83 .endif 84 85 CFLAGS= ${COPTFLAGS} ${C_DIALECT} ${DEBUG} ${CWARNFLAGS} 86 CFLAGS+= ${INCLUDES} -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h 87 .if ${MK_CLANG_IS_CC} == "no" && ${CC:T:Mclang} != "clang" 88 CFLAGS+= -fno-common -finline-limit=${INLINE_LIMIT} 89 .if ${MACHINE_CPUARCH} != "mips" 90 CFLAGS+= --param inline-unit-growth=100 91 CFLAGS+= --param large-function-growth=1000 92 .else 93 # XXX Actually a gross hack just for Octeon because of the Simple Executive. 94 CFLAGS+= --param inline-unit-growth=10000 95 CFLAGS+= --param large-function-growth=100000 96 CFLAGS+= --param max-inline-insns-single=10000 97 .endif 98 .endif 99 WERROR?= -Werror 100 101 # XXX LOCORE means "don't declare C stuff" not "for locore.s". 102 ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS} 103 104 .if ${MK_CLANG_IS_CC} != "no" || ${CC:T:Mclang} == "clang" 105 CLANG_NO_IAS= -no-integrated-as 106 .endif 107 108 .if defined(PROFLEVEL) && ${PROFLEVEL} >= 1 109 CFLAGS+= -DGPROF -falign-functions=16 110 .if ${PROFLEVEL} >= 2 111 CFLAGS+= -DGPROF4 -DGUPROF 112 PROF= -pg -mprofiler-epilogue 113 .else 114 PROF= -pg 115 .endif 116 .endif 117 DEFINED_PROF= ${PROF} 118 119 # Put configuration-specific C flags last (except for ${PROF}) so that they 120 # can override the others. 121 CFLAGS+= ${CONF_CFLAGS} 122 123 # Optional linting. This can be overridden in /etc/make.conf. 124 LINTFLAGS= ${LINTOBJKERNFLAGS} 125 126 NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.IMPSRC} 127 NORMAL_S= ${CC} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC} 128 PROFILE_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC} 129 NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC} 130 131 NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \ 132 ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c 133 134 NORMAL_CTFCONVERT= [ -z "${CTFCONVERT}" -o -n "${NO_CTF}" ] || \ 135 ${CTFCONVERT} ${CTFFLAGS} ${.TARGET} 136 137 NORMAL_LINT= ${LINT} ${LINTFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC} 138 139 # Infiniband C flags. Correct include paths and omit errors that linux 140 # does not honor. 141 OFEDINCLUDES= -I$S/ofed/include/ 142 OFEDNOERR= -Wno-cast-qual -Wno-pointer-arith -fms-extensions 143 OFEDCFLAGS= ${CFLAGS:N-I*} ${OFEDINCLUDES} ${CFLAGS:M-I*} ${OFEDNOERR} 144 OFED_C_NOIMP= ${CC} -c -o ${.TARGET} ${OFEDCFLAGS} ${WERROR} ${PROF} 145 OFED_C= ${OFED_C_NOIMP} ${.IMPSRC} 146 147 GEN_CFILES= $S/$M/$M/genassym.c ${MFILES:T:S/.m$/.c/} 148 SYSTEM_CFILES= config.c env.c hints.c vnode_if.c 149 SYSTEM_DEP= Makefile ${SYSTEM_OBJS} 150 SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS} 151 SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o} 152 SYSTEM_OBJS+= hack.So 153 SYSTEM_CTFMERGE= [ -z "${CTFMERGE}" -o -n "${NO_CTF}" ] || ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJS} vers.o 154 SYSTEM_LD= @${LD} -Bdynamic -T ${LDSCRIPT} \ 155 -warn-common -export-dynamic -dynamic-linker /red/herring \ 156 -o ${.TARGET} -X ${SYSTEM_OBJS} vers.o 157 SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \ 158 ${SIZE} ${.TARGET} ; chmod 755 ${.TARGET} 159 SYSTEM_DEP+= ${LDSCRIPT} 160 161 # MKMODULESENV is set here so that port makefiles can augment 162 # them. 163 164 MKMODULESENV+= MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR} 165 MKMODULESENV+= MACHINE_CPUARCH=${MACHINE_CPUARCH} 166 .if (${KERN_IDENT} == LINT) 167 MKMODULESENV+= ALL_MODULES=LINT 168 .endif 169 .if defined(MODULES_OVERRIDE) 170 MKMODULESENV+= MODULES_OVERRIDE="${MODULES_OVERRIDE}" 171 .endif 172 .if defined(WITHOUT_MODULES) 173 MKMODULESENV+= WITHOUT_MODULES="${WITHOUT_MODULES}" 174 .endif 175 .if defined(DEBUG) 176 MKMODULESENV+= DEBUG_FLAGS="${DEBUG}" 177 .endif
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