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 .include <bsd.own.mk>
   7
   8 # backwards compat option for older systems.
   9 MACHINE_CPUARCH?=${MACHINE_ARCH:C/mipse[lb]/mips/:C/armeb/arm/:C/powerpc64/powerpc/}
  10
  11 # Can be overridden by makeoptions or /etc/make.conf
  12 KERNEL_KO?=     kernel
  13 KERNEL?=        kernel
  14 KODIR?=         /boot/${KERNEL}
  15 LDSCRIPT_NAME?= ldscript.$M
  16 LDSCRIPT?=      $S/conf/${LDSCRIPT_NAME}
  17
  18 M=      ${MACHINE_CPUARCH}
  19
  20 AWK?=           awk
  21 LINT?=          lint
  22 NM?=            nm
  23 OBJCOPY?=       objcopy
  24 SIZE?=          size
  25
  26 .if ${CC:T:Micc} == "icc"
  27 COPTFLAGS?=     -O
  28 .else
  29 . if defined(DEBUG)
  30 _MINUS_O=       -O
  31 CTFFLAGS+=      -g
  32 . else
  33 _MINUS_O=       -O2
  34 . endif
  35 . if ${MACHINE_CPUARCH} == "amd64"
  36 COPTFLAGS?=-O2 -frename-registers -pipe
  37 . else
  38 COPTFLAGS?=${_MINUS_O} -pipe
  39 . endif
  40 . if !empty(COPTFLAGS:M-O[23s]) && empty(COPTFLAGS:M-fno-strict-aliasing)
  41 COPTFLAGS+= -fno-strict-aliasing
  42 . endif
  43 .endif
  44 .if !defined(NO_CPU_COPTFLAGS)
  45 . if ${CC:T:Micc} == "icc"
  46 COPTFLAGS+= ${_ICC_CPUCFLAGS:C/(-x[^M^K^W]+)[MKW]+|-x[MKW]+/\1/}
  47 . else
  48 COPTFLAGS+= ${_CPUCFLAGS}
  49 . endif
  50 .endif
  51 .if ${CC:T:Micc} == "icc"
  52 C_DIALECT=
  53 NOSTDINC= -X
  54 .else
  55 C_DIALECT= -std=c99
  56 NOSTDINC= -nostdinc
  57 .endif
  58
  59 INCLUDES= ${NOSTDINC} ${INCLMAGIC} -I. -I$S
  60
  61 # This hack lets us use the OpenBSD altq code without spamming a new
  62 # include path into contrib'ed source files.
  63 INCLUDES+= -I$S/contrib/altq
  64
  65 .if make(depend) || make(kernel-depend)
  66
  67 # ... and the same for ipfilter
  68 INCLUDES+= -I$S/contrib/ipfilter
  69
  70 # ... and the same for pf
  71 INCLUDES+= -I$S/contrib/pf
  72
  73 # ... and the same for ath
  74 INCLUDES+= -I$S/dev/ath -I$S/dev/ath/ath_hal
  75
  76 # ... and the same for the NgATM stuff
  77 INCLUDES+= -I$S/contrib/ngatm
  78
  79 # .. and the same for twa
  80 INCLUDES+= -I$S/dev/twa
  81
  82 # ...  and XFS
  83 INCLUDES+= -I$S/gnu/fs/xfs/FreeBSD -I$S/gnu/fs/xfs/FreeBSD/support -I$S/gnu/fs/xfs
  84
  85 # ...  and OpenSolaris
  86 INCLUDES+= -I$S/contrib/opensolaris/compat
  87
  88 # ... and the same for cxgb
  89 INCLUDES+= -I$S/dev/cxgb
  90
  91 .endif
  92
  93 CFLAGS= ${COPTFLAGS} ${C_DIALECT} ${DEBUG} ${CWARNFLAGS}
  94 CFLAGS+= ${INCLUDES} -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h
  95 .if ${CC:T:Micc} != "icc"
  96 .if ${CC:T:Mclang} != "clang"
  97 CFLAGS+= -fno-common -finline-limit=${INLINE_LIMIT}
  98 .if ${MACHINE_CPUARCH} != "mips"
  99 CFLAGS+= --param inline-unit-growth=100
 100 CFLAGS+= --param large-function-growth=1000
 101 .else
 102 # XXX Actually a gross hack just for Octeon because of the Simple Executive.
 103 CFLAGS+= --param inline-unit-growth=10000
 104 CFLAGS+= --param large-function-growth=100000
 105 CFLAGS+= --param max-inline-insns-single=10000
 106 .endif
 107 .endif
 108 WERROR?= -Werror
 109 .endif
 110
 111 # XXX LOCORE means "don't declare C stuff" not "for locore.s".
 112 ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS}
 113
 114 .if defined(PROFLEVEL) && ${PROFLEVEL} >= 1
 115 .if ${CC:T:Micc} == "icc" || ${CC:T:Mclang} == "clang"
 116 .error "Profiling doesn't work with icc or clang yet"
 117 .endif
 118 CFLAGS+=        -DGPROF -falign-functions=16
 119 .if ${PROFLEVEL} >= 2
 120 CFLAGS+=        -DGPROF4 -DGUPROF
 121 PROF=   -pg -mprofiler-epilogue
 122 .else
 123 PROF=   -pg
 124 .endif
 125 .endif
 126 DEFINED_PROF=   ${PROF}
 127
 128 # Put configuration-specific C flags last (except for ${PROF}) so that they
 129 # can override the others.
 130 CFLAGS+=        ${CONF_CFLAGS}
 131
 132 # Optional linting. This can be overridden in /etc/make.conf.
 133 LINTFLAGS=      ${LINTOBJKERNFLAGS}
 134
 135 NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
 136 NORMAL_S= ${CC} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC}
 137 PROFILE_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC}
 138 NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC}
 139
 140 NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \
 141           ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c
 142
 143 NORMAL_CTFCONVERT= [ -z "${CTFCONVERT}" -o -n "${NO_CTF}" ] || \
 144                    ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
 145
 146 NORMAL_LINT=    ${LINT} ${LINTFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC}
 147
 148 GEN_CFILES= $S/$M/$M/genassym.c ${MFILES:T:S/.m$/.c/}
 149 SYSTEM_CFILES= config.c env.c hints.c vnode_if.c
 150 SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
 151 SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS}
 152 SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o}
 153 SYSTEM_OBJS+= hack.So
 154 SYSTEM_CTFMERGE= [ -z "${CTFMERGE}" -o -n "${NO_CTF}" ] || ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJS} vers.o
 155 SYSTEM_LD= @${LD} -Bdynamic -T ${LDSCRIPT} \
 156         -warn-common -export-dynamic -dynamic-linker /red/herring \
 157         -o ${.TARGET} -X ${SYSTEM_OBJS} vers.o
 158 SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \
 159         ${SIZE} ${.TARGET} ; chmod 755 ${.TARGET}
 160 SYSTEM_DEP+= ${LDSCRIPT}
 161
 162 # MKMODULESENV is set here so that port makefiles can augment
 163 # them.
 164
 165 MKMODULESENV=   MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR}
 166 MKMODULESENV+=  MACHINE_CPUARCH=${MACHINE_CPUARCH}
 167 .if (${KERN_IDENT} == LINT)
 168 MKMODULESENV+=  ALL_MODULES=LINT
 169 .endif
 170 .if defined(MODULES_OVERRIDE)
 171 MKMODULESENV+=  MODULES_OVERRIDE="${MODULES_OVERRIDE}"
 172 .endif
 173 .if defined(WITHOUT_MODULES)
 174 MKMODULESENV+=  WITHOUT_MODULES="${WITHOUT_MODULES}"
 175 .endif
 176 .if defined(DEBUG)
 177 MKMODULESENV+=  DEBUG_FLAGS="${DEBUG}"
 178 .endif