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/8.0/sys/conf/kern.pre.mk 192901 2009-05-27 16:16:56Z thompsa $ 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 # Can be overridden by makeoptions or /etc/make.conf 9 KERNEL_KO?= kernel 10 KERNEL?= kernel 11 KODIR?= /boot/${KERNEL} 12 LDSCRIPT_NAME?= ldscript.$M 13 LDSCRIPT?= $S/conf/${LDSCRIPT_NAME} 14 15 M= ${MACHINE_ARCH} 16 17 AWK?= awk 18 LINT?= lint 19 NM?= nm 20 OBJCOPY?= objcopy 21 SIZE?= size 22 23 .if ${CC} == "icc" 24 COPTFLAGS?= -O 25 .else 26 . if defined(DEBUG) 27 _MINUS_O= -O 28 CTFFLAGS+= -g 29 . else 30 _MINUS_O= -O2 31 . endif 32 . if ${MACHINE_ARCH} == "amd64" 33 COPTFLAGS?=-O2 -frename-registers -pipe 34 . else 35 COPTFLAGS?=${_MINUS_O} -pipe 36 . endif 37 . if !empty(COPTFLAGS:M-O[23s]) && empty(COPTFLAGS:M-fno-strict-aliasing) 38 COPTFLAGS+= -fno-strict-aliasing 39 . endif 40 .endif 41 .if !defined(NO_CPU_COPTFLAGS) 42 . if ${CC} == "icc" 43 COPTFLAGS+= ${_ICC_CPUCFLAGS:C/(-x[^M^K^W]+)[MKW]+|-x[MKW]+/\1/} 44 . else 45 COPTFLAGS+= ${_CPUCFLAGS} 46 . endif 47 .endif 48 .if ${CC} == "icc" 49 C_DIALECT= 50 NOSTDINC= -X 51 .else 52 C_DIALECT= -std=c99 53 NOSTDINC= -nostdinc 54 .endif 55 56 INCLUDES= ${NOSTDINC} ${INCLMAGIC} -I. -I$S 57 58 # This hack lets us use the OpenBSD altq code without spamming a new 59 # include path into contrib'ed source files. 60 INCLUDES+= -I$S/contrib/altq 61 62 .if make(depend) || make(kernel-depend) 63 64 # ... and the same for ipfilter 65 INCLUDES+= -I$S/contrib/ipfilter 66 67 # ... and the same for pf 68 INCLUDES+= -I$S/contrib/pf 69 70 # ... and the same for ath 71 INCLUDES+= -I$S/dev/ath -I$S/dev/ath/ath_hal 72 73 # ... and the same for the NgATM stuff 74 INCLUDES+= -I$S/contrib/ngatm 75 76 # .. and the same for twa 77 INCLUDES+= -I$S/dev/twa 78 79 # ... and XFS 80 INCLUDES+= -I$S/gnu/fs/xfs/FreeBSD -I$S/gnu/fs/xfs/FreeBSD/support -I$S/gnu/fs/xfs 81 82 # ... and OpenSolaris 83 INCLUDES+= -I$S/contrib/opensolaris/compat 84 85 # ... and the same for cxgb 86 INCLUDES+= -I$S/dev/cxgb 87 88 .endif 89 90 CFLAGS= ${COPTFLAGS} ${C_DIALECT} ${DEBUG} ${CWARNFLAGS} 91 CFLAGS+= ${INCLUDES} -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h 92 .if ${CC} != "icc" 93 CFLAGS+= -fno-common -finline-limit=${INLINE_LIMIT} 94 CFLAGS+= --param inline-unit-growth=100 95 CFLAGS+= --param large-function-growth=1000 96 WERROR?= -Werror 97 .endif 98 99 # XXX LOCORE means "don't declare C stuff" not "for locore.s". 100 ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS} 101 102 .if defined(PROFLEVEL) && ${PROFLEVEL} >= 1 103 .if ${CC} == "icc" 104 .error "Profiling doesn't work with icc yet" 105 .endif 106 CFLAGS+= -DGPROF -falign-functions=16 107 .if ${PROFLEVEL} >= 2 108 CFLAGS+= -DGPROF4 -DGUPROF 109 PROF= -pg -mprofiler-epilogue 110 .else 111 PROF= -pg 112 .endif 113 .endif 114 DEFINED_PROF= ${PROF} 115 116 # Put configuration-specific C flags last (except for ${PROF}) so that they 117 # can override the others. 118 CFLAGS+= ${CONF_CFLAGS} 119 120 # Optional linting. This can be overridden in /etc/make.conf. 121 LINTFLAGS= ${LINTOBJKERNFLAGS} 122 123 NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.IMPSRC} 124 NORMAL_S= ${CC} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC} 125 PROFILE_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC} 126 NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC} 127 128 NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \ 129 ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c 130 131 .if defined(CTFCONVERT) 132 NORMAL_CTFCONVERT= ${CTFCONVERT} ${CTFFLAGS} ${.TARGET} 133 .else 134 NORMAL_CTFCONVERT= 135 .endif 136 137 NORMAL_LINT= ${LINT} ${LINTFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC} 138 139 GEN_CFILES= $S/$M/$M/genassym.c ${MFILES:T:S/.m$/.c/} 140 SYSTEM_CFILES= config.c env.c hints.c vnode_if.c 141 SYSTEM_DEP= Makefile ${SYSTEM_OBJS} 142 SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS} 143 SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o} 144 SYSTEM_OBJS+= hack.So 145 .if defined(CTFMERGE) 146 SYSTEM_CTFMERGE= ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJS} vers.o 147 LD+= -g 148 .endif 149 SYSTEM_LD= @${LD} -Bdynamic -T ${LDSCRIPT} \ 150 -warn-common -export-dynamic -dynamic-linker /red/herring \ 151 -o ${.TARGET} -X ${SYSTEM_OBJS} vers.o 152 SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \ 153 ${SIZE} ${.TARGET} ; chmod 755 ${.TARGET} 154 SYSTEM_DEP+= ${LDSCRIPT} 155 156 # MKMODULESENV is set here so that port makefiles can augment 157 # them. 158 159 MKMODULESENV= MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR} 160 .if (${KERN_IDENT} == LINT) 161 MKMODULESENV+= ALL_MODULES=LINT 162 .endif 163 .if defined(MODULES_OVERRIDE) 164 MKMODULESENV+= MODULES_OVERRIDE="${MODULES_OVERRIDE}" 165 .endif 166 .if defined(DEBUG) 167 MKMODULESENV+= DEBUG_FLAGS="${DEBUG}" 168 .endif
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