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
  16 M=      ${MACHINE_ARCH}
  17
  18 AWK?=           awk
  19 LINT?=          lint
  20 NM?=            nm
  21 OBJCOPY?=       objcopy
  22 SIZE?=          size
  23
  24 .if ${CC} == "icc"
  25 COPTFLAGS?=     -O
  26 .else
  27 . if defined(DEBUG)
  28 _MINUS_O=       -O
  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$S/contrib/pf
  69
  70 # ... and the same for Atheros HAL
  71 INCLUDES+= -I$S/dev/ath
  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 .endif
  83
  84 CFLAGS= ${COPTFLAGS} ${C_DIALECT} ${DEBUG} ${CWARNFLAGS}
  85 CFLAGS+= ${INCLUDES} -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h
  86 .if ${CC} != "icc"
  87 CFLAGS+= -fno-common -finline-limit=${INLINE_LIMIT}
  88 CFLAGS+= --param inline-unit-growth=100
  89 CFLAGS+= --param large-function-growth=1000
  90 .if ${MACHINE_ARCH} == "amd64" || ${MACHINE} == "i386" || \
  91     ${MACHINE_ARCH} == "ia64" || ${MACHINE_ARCH} == "powerpc" || \
  92     ${MACHINE_ARCH} == "sparc64"
  93 WERROR?= -Werror
  94 .endif
  95 .endif
  96
  97 # XXX LOCORE means "don't declare C stuff" not "for locore.s".
  98 ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS}
  99
 100 .if defined(PROFLEVEL) && ${PROFLEVEL} >= 1
 101 .if ${CC} == "icc"
 102 .error "Profiling doesn't work with icc yet"
 103 .endif
 104 CFLAGS+=        -DGPROF -falign-functions=16
 105 .if ${PROFLEVEL} >= 2
 106 CFLAGS+=        -DGPROF4 -DGUPROF
 107 PROF=   -pg -mprofiler-epilogue
 108 .else
 109 PROF=   -pg
 110 .endif
 111 .endif
 112 DEFINED_PROF=   ${PROF}
 113
 114 # Put configuration-specific C flags last (except for ${PROF}) so that they
 115 # can override the others.
 116 CFLAGS+=        ${CONF_CFLAGS}
 117
 118 # Optional linting. This can be overridden in /etc/make.conf.
 119 LINTFLAGS=      ${LINTOBJKERNFLAGS}
 120
 121 NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
 122 NORMAL_S= ${CC} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC}
 123 PROFILE_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC}
 124 NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC}
 125
 126 NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \
 127           ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c
 128
 129 NORMAL_LINT=    ${LINT} ${LINTFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC}
 130
 131 GEN_CFILES= $S/$M/$M/genassym.c ${MFILES:T:S/.m$/.c/}
 132 SYSTEM_CFILES= config.c env.c hints.c vnode_if.c
 133 SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
 134 SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS}
 135 SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o}
 136 SYSTEM_OBJS+= hack.So
 137 SYSTEM_LD= @${LD} -Bdynamic -T $S/conf/ldscript.$M \
 138         -warn-common -export-dynamic -dynamic-linker /red/herring \
 139         -o ${.TARGET} -X ${SYSTEM_OBJS} vers.o
 140 SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \
 141         ${SIZE} ${.TARGET} ; chmod 755 ${.TARGET}
 142 SYSTEM_DEP+= $S/conf/ldscript.$M
 143
 144 # MKMODULESENV is set here so that port makefiles can augment
 145 # them.
 146
 147 MKMODULESENV=   MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR}
 148 .if (${KERN_IDENT} == LINT)
 149 MKMODULESENV+=  ALL_MODULES=LINT
 150 .endif
 151 .if defined(MODULES_OVERRIDE)
 152 MKMODULESENV+=  MODULES_OVERRIDE="${MODULES_OVERRIDE}"
 153 .endif
 154 .if defined(DEBUG)
 155 MKMODULESENV+=  DEBUG_FLAGS="${DEBUG}"
 156 .endif