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 SRCCONF?=       /etc/src.conf
   7 .if exists(${SRCCONF})
   8 .include "${SRCCONF}"
   9 .endif
  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_ARCH}
  19
  20 AWK?=           awk
  21 LINT?=          lint
  22 NM?=            nm
  23 OBJCOPY?=       objcopy
  24 SIZE?=          size
  25
  26 .if ${CC} == "icc"
  27 COPTFLAGS?=     -O
  28 .else
  29 . if defined(DEBUG)
  30 _MINUS_O=       -O
  31 . else
  32 _MINUS_O=       -O2
  33 . endif
  34 . if ${MACHINE_ARCH} == "amd64"
  35 COPTFLAGS?=-O2 -frename-registers -pipe
  36 . elif ${MACHINE_ARCH} == "sparc64"
  37 COPTFLAGS?=-pipe
  38 . else
  39 COPTFLAGS?=${_MINUS_O} -pipe
  40 . endif
  41 . if !empty(COPTFLAGS:M-O[23s]) && empty(COPTFLAGS:M-fno-strict-aliasing)
  42 COPTFLAGS+= -fno-strict-aliasing
  43 . endif
  44 .endif
  45 .if !defined(NO_CPU_COPTFLAGS)
  46 . if ${CC} == "icc"
  47 COPTFLAGS+= ${_ICC_CPUCFLAGS:C/(-x[^M^K^W]+)[MKW]+|-x[MKW]+/\1/}
  48 . else
  49 COPTFLAGS+= ${_CPUCFLAGS}
  50 . endif
  51 .endif
  52 .if ${CC} == "icc"
  53 C_DIALECT=
  54 NOSTDINC= -X
  55 .else
  56 C_DIALECT= -std=c99
  57 NOSTDINC= -nostdinc
  58 .endif
  59
  60 INCLUDES= ${NOSTDINC} ${INCLMAGIC} -I. -I$S
  61
  62 # This hack lets us use the OpenBSD altq code without spamming a new
  63 # include path into contrib'ed source files.
  64 INCLUDES+= -I$S/contrib/altq
  65
  66 .if make(depend) || make(kernel-depend)
  67
  68 # ... and the same for ipfilter
  69 INCLUDES+= -I$S/contrib/ipfilter
  70
  71 # ... and the same for pf
  72 INCLUDES+= -I$S/contrib/pf
  73
  74 # ... and the same for Atheros HAL
  75 INCLUDES+= -I$S/dev/ath
  76
  77 # ... and the same for the NgATM stuff
  78 INCLUDES+= -I$S/contrib/ngatm
  79
  80 # .. and the same for twa
  81 INCLUDES+= -I$S/dev/twa
  82
  83 # ...  and XFS
  84 INCLUDES+= -I$S/gnu/fs/xfs/FreeBSD -I$S/gnu/fs/xfs/FreeBSD/support -I$S/gnu/fs/xfs
  85
  86 # ...  and OpenSolaris
  87 INCLUDES+= -I$S/contrib/opensolaris/compat
  88
  89 .endif
  90
  91 CFLAGS= ${COPTFLAGS} ${C_DIALECT} ${DEBUG} ${CWARNFLAGS}
  92 CFLAGS+= ${INCLUDES} -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h
  93 .if ${CC} != "icc"
  94 CFLAGS+= -fno-common -finline-limit=${INLINE_LIMIT}
  95 CFLAGS+= --param inline-unit-growth=100
  96 CFLAGS+= --param large-function-growth=1000
  97 WERROR?= -Werror
  98 .endif
  99
 100 # XXX LOCORE means "don't declare C stuff" not "for locore.s".
 101 ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS}
 102
 103 .if defined(PROFLEVEL) && ${PROFLEVEL} >= 1
 104 .if ${CC} == "icc"
 105 .error "Profiling doesn't work with icc yet"
 106 .endif
 107 CFLAGS+=        -DGPROF -falign-functions=16
 108 .if ${PROFLEVEL} >= 2
 109 CFLAGS+=        -DGPROF4 -DGUPROF
 110 PROF=   -pg -mprofiler-epilogue
 111 .else
 112 PROF=   -pg
 113 .endif
 114 .endif
 115 DEFINED_PROF=   ${PROF}
 116
 117 # Put configuration-specific C flags last (except for ${PROF}) so that they
 118 # can override the others.
 119 CFLAGS+=        ${CONF_CFLAGS}
 120
 121 # Optional linting. This can be overridden in /etc/make.conf.
 122 LINTFLAGS=      ${LINTOBJKERNFLAGS}
 123
 124 NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
 125 NORMAL_S= ${CC} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC}
 126 PROFILE_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC}
 127 NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC}
 128
 129 NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \
 130           ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c
 131
 132 .if defined(CTFCONVERT)
 133 NORMAL_CTFCONVERT= ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
 134 .else
 135 NORMAL_CTFCONVERT=
 136 .endif
 137
 138 NORMAL_LINT=    ${LINT} ${LINTFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC}
 139
 140 GEN_CFILES= $S/$M/$M/genassym.c ${MFILES:T:S/.m$/.c/}
 141 SYSTEM_CFILES= config.c env.c hints.c vnode_if.c
 142 SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
 143 SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS}
 144 SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o}
 145 SYSTEM_OBJS+= hack.So
 146 .if defined(CTFMERGE)
 147 SYSTEM_CTFMERGE= ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJS} vers.o
 148 LD+= -g
 149 .endif
 150 SYSTEM_LD= @${LD} -Bdynamic -T ${LDSCRIPT} \
 151         -warn-common -export-dynamic -dynamic-linker /red/herring \
 152         -o ${.TARGET} -X ${SYSTEM_OBJS} vers.o
 153 SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \
 154         ${SIZE} ${.TARGET} ; chmod 755 ${.TARGET}
 155 SYSTEM_DEP+= ${LDSCRIPT}
 156
 157 # MKMODULESENV is set here so that port makefiles can augment
 158 # them.
 159
 160 MKMODULESENV=   MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR}
 161 .if (${KERN_IDENT} == LINT)
 162 MKMODULESENV+=  ALL_MODULES=LINT
 163 .endif
 164 .if defined(MODULES_OVERRIDE)
 165 MKMODULESENV+=  MODULES_OVERRIDE="${MODULES_OVERRIDE}"
 166 .endif
 167 .if defined(DEBUG)
 168 MKMODULESENV+=  DEBUG_FLAGS="${DEBUG}"
 169 .endif