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 defined(DEBUG)
  27 _MINUS_O=       -O
  28 CTFFLAGS+=      -g
  29 .else
  30 .if ${MACHINE_CPUARCH} == "powerpc"
  31 _MINUS_O=       -O      # gcc miscompiles some code at -O2
  32 .else
  33 _MINUS_O=       -O2
  34 .endif
  35 .endif
  36 .if ${MACHINE_CPUARCH} == "amd64"
  37 .if ${MK_CLANG_IS_CC} == "no" && ${CC:T:Mclang} != "clang"
  38 COPTFLAGS?=-O2 -frename-registers -pipe
  39 .else
  40 COPTFLAGS?=-O2 -pipe
  41 .endif
  42 .else
  43 COPTFLAGS?=${_MINUS_O} -pipe
  44 .endif
  45 .if !empty(COPTFLAGS:M-O[23s]) && empty(COPTFLAGS:M-fno-strict-aliasing)
  46 COPTFLAGS+= -fno-strict-aliasing
  47 .endif
  48 .if !defined(NO_CPU_COPTFLAGS)
  49 COPTFLAGS+= ${_CPUCFLAGS}
  50 .endif
  51 C_DIALECT= -std=c99
  52 NOSTDINC= -nostdinc
  53
  54 INCLUDES= ${NOSTDINC} ${INCLMAGIC} -I. -I$S
  55
  56 # This hack lets us use the OpenBSD altq code without spamming a new
  57 # include path into contrib'ed source files.
  58 INCLUDES+= -I$S/contrib/altq
  59
  60 .if make(depend) || make(kernel-depend)
  61
  62 # ... and the same for ipfilter
  63 INCLUDES+= -I$S/contrib/ipfilter
  64
  65 # ... and the same for pf
  66 INCLUDES+= -I$S/contrib/pf
  67
  68 # ... and the same for ath
  69 INCLUDES+= -I$S/dev/ath -I$S/dev/ath/ath_hal
  70
  71 # ... and the same for the NgATM stuff
  72 INCLUDES+= -I$S/contrib/ngatm
  73
  74 # ... and the same for twa
  75 INCLUDES+= -I$S/dev/twa
  76
  77 # ... and the same for XFS
  78 INCLUDES+= -I$S/gnu/fs/xfs/FreeBSD -I$S/gnu/fs/xfs/FreeBSD/support -I$S/gnu/fs/xfs
  79
  80 # ... and the same for cxgb and cxgbe
  81 INCLUDES+= -I$S/dev/cxgb -I$S/dev/cxgbe
  82
  83 .endif
  84
  85 CFLAGS= ${COPTFLAGS} ${C_DIALECT} ${DEBUG} ${CWARNFLAGS}
  86 CFLAGS+= ${INCLUDES} -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h
  87 .if ${MK_CLANG_IS_CC} == "no" && ${CC:T:Mclang} != "clang"
  88 CFLAGS+= -fno-common -finline-limit=${INLINE_LIMIT}
  89 .if ${MACHINE_CPUARCH} != "mips"
  90 CFLAGS+= --param inline-unit-growth=100
  91 CFLAGS+= --param large-function-growth=1000
  92 .else
  93 # XXX Actually a gross hack just for Octeon because of the Simple Executive.
  94 CFLAGS+= --param inline-unit-growth=10000
  95 CFLAGS+= --param large-function-growth=100000
  96 CFLAGS+= --param max-inline-insns-single=10000
  97 .endif
  98 .endif
  99 WERROR?= -Werror
 100
 101 # XXX LOCORE means "don't declare C stuff" not "for locore.s".
 102 ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS}
 103
 104 .if ${MK_CLANG_IS_CC} != "no" || ${CC:T:Mclang} == "clang"
 105 CLANG_NO_IAS= -no-integrated-as
 106 .endif
 107
 108 .if defined(PROFLEVEL) && ${PROFLEVEL} >= 1
 109 CFLAGS+=        -DGPROF -falign-functions=16
 110 .if ${PROFLEVEL} >= 2
 111 CFLAGS+=        -DGPROF4 -DGUPROF
 112 PROF=   -pg -mprofiler-epilogue
 113 .else
 114 PROF=   -pg
 115 .endif
 116 .endif
 117 DEFINED_PROF=   ${PROF}
 118
 119 # Put configuration-specific C flags last (except for ${PROF}) so that they
 120 # can override the others.
 121 CFLAGS+=        ${CONF_CFLAGS}
 122
 123 # Optional linting. This can be overridden in /etc/make.conf.
 124 LINTFLAGS=      ${LINTOBJKERNFLAGS}
 125
 126 NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
 127 NORMAL_S= ${CC} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC}
 128 PROFILE_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC}
 129 NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC}
 130
 131 NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \
 132           ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c
 133
 134 NORMAL_CTFCONVERT= [ -z "${CTFCONVERT}" -o -n "${NO_CTF}" ] || \
 135                    ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
 136
 137 NORMAL_LINT=    ${LINT} ${LINTFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC}
 138
 139 # Infiniband C flags.  Correct include paths and omit errors that linux
 140 # does not honor.
 141 OFEDINCLUDES=   -I$S/ofed/include/
 142 OFEDNOERR=      -Wno-cast-qual -Wno-pointer-arith -fms-extensions
 143 OFEDCFLAGS=     ${CFLAGS:N-I*} ${OFEDINCLUDES} ${CFLAGS:M-I*} ${OFEDNOERR}
 144 OFED_C_NOIMP=   ${CC} -c -o ${.TARGET} ${OFEDCFLAGS} ${WERROR} ${PROF}
 145 OFED_C=         ${OFED_C_NOIMP} ${.IMPSRC}
 146
 147 GEN_CFILES= $S/$M/$M/genassym.c ${MFILES:T:S/.m$/.c/}
 148 SYSTEM_CFILES= config.c env.c hints.c vnode_if.c
 149 SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
 150 SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS}
 151 SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o}
 152 SYSTEM_OBJS+= hack.So
 153 SYSTEM_CTFMERGE= [ -z "${CTFMERGE}" -o -n "${NO_CTF}" ] || ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJS} vers.o
 154 SYSTEM_LD= @${LD} -Bdynamic -T ${LDSCRIPT} \
 155         -warn-common -export-dynamic -dynamic-linker /red/herring \
 156         -o ${.TARGET} -X ${SYSTEM_OBJS} vers.o
 157 SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \
 158         ${SIZE} ${.TARGET} ; chmod 755 ${.TARGET}
 159 SYSTEM_DEP+= ${LDSCRIPT}
 160
 161 # MKMODULESENV is set here so that port makefiles can augment
 162 # them.
 163
 164 MKMODULESENV+=  MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR}
 165 MKMODULESENV+=  MACHINE_CPUARCH=${MACHINE_CPUARCH}
 166 .if (${KERN_IDENT} == LINT)
 167 MKMODULESENV+=  ALL_MODULES=LINT
 168 .endif
 169 .if defined(MODULES_OVERRIDE)
 170 MKMODULESENV+=  MODULES_OVERRIDE="${MODULES_OVERRIDE}"
 171 .endif
 172 .if defined(WITHOUT_MODULES)
 173 MKMODULESENV+=  WITHOUT_MODULES="${WITHOUT_MODULES}"
 174 .endif
 175 .if defined(DEBUG)
 176 MKMODULESENV+=  DEBUG_FLAGS="${DEBUG}"
 177 .endif