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