6/sys/conf/kern.pre.mk

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