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 CP?=            cp
  22 LINT?=          lint
  23 NM?=            nm
  24 OBJCOPY?=       objcopy
  25 SIZE?=          size
  26
  27 .if defined(DEBUG)
  28 _MINUS_O=       -O
  29 CTFFLAGS+=      -g
  30 .else
  31 .if ${MACHINE_CPUARCH} == "powerpc"
  32 _MINUS_O=       -O      # gcc miscompiles some code at -O2
  33 .else
  34 _MINUS_O=       -O2
  35 .endif
  36 .endif
  37 .if ${MACHINE_CPUARCH} == "amd64"
  38 .if ${MK_CLANG_IS_CC} == "no" && ${CC:T:Mclang} != "clang"
  39 COPTFLAGS?=-O2 -frename-registers -pipe
  40 .else
  41 COPTFLAGS?=-O2 -pipe
  42 .endif
  43 .else
  44 COPTFLAGS?=${_MINUS_O} -pipe
  45 .endif
  46 .if !empty(COPTFLAGS:M-O[23s]) && empty(COPTFLAGS:M-fno-strict-aliasing)
  47 COPTFLAGS+= -fno-strict-aliasing
  48 .endif
  49 .if !defined(NO_CPU_COPTFLAGS)
  50 COPTFLAGS+= ${_CPUCFLAGS}
  51 .endif
  52 C_DIALECT= -std=c99
  53 NOSTDINC= -nostdinc
  54
  55 INCLUDES= ${NOSTDINC} ${INCLMAGIC} -I. -I$S
  56
  57 # This hack lets us use the OpenBSD altq code without spamming a new
  58 # include path into contrib'ed source files.
  59 INCLUDES+= -I$S/contrib/altq
  60
  61 .if make(depend) || make(kernel-depend)
  62
  63 # ... and the same for ipfilter
  64 INCLUDES+= -I$S/contrib/ipfilter
  65
  66 # ... and the same for pf
  67 INCLUDES+= -I$S/contrib/pf
  68
  69 # ... and the same for ath
  70 INCLUDES+= -I$S/dev/ath -I$S/dev/ath/ath_hal
  71
  72 # ... and the same for the NgATM stuff
  73 INCLUDES+= -I$S/contrib/ngatm
  74
  75 # ... and the same for twa
  76 INCLUDES+= -I$S/dev/twa
  77
  78 # ... and the same for XFS
  79 INCLUDES+= -I$S/gnu/fs/xfs/FreeBSD -I$S/gnu/fs/xfs/FreeBSD/support -I$S/gnu/fs/xfs
  80
  81 # ... and the same for cxgb and cxgbe
  82 INCLUDES+= -I$S/dev/cxgb -I$S/dev/cxgbe
  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 ${MK_CLANG_IS_CC} == "no" && ${CC:T:Mclang} != "clang"
  89 CFLAGS+= -fno-common -finline-limit=${INLINE_LIMIT}
  90 .if ${MACHINE_CPUARCH} != "mips"
  91 CFLAGS+= --param inline-unit-growth=100
  92 CFLAGS+= --param large-function-growth=1000
  93 .else
  94 # XXX Actually a gross hack just for Octeon because of the Simple Executive.
  95 CFLAGS+= --param inline-unit-growth=10000
  96 CFLAGS+= --param large-function-growth=100000
  97 CFLAGS+= --param max-inline-insns-single=10000
  98 .endif
  99 .endif
 100 WERROR?= -Werror
 101
 102 # XXX LOCORE means "don't declare C stuff" not "for locore.s".
 103 ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS}
 104
 105 .if ${MK_CLANG_IS_CC} != "no" || ${CC:T:Mclang} == "clang"
 106 CLANG_NO_IAS= -no-integrated-as
 107 .endif
 108
 109 .if defined(PROFLEVEL) && ${PROFLEVEL} >= 1
 110 CFLAGS+=        -DGPROF -falign-functions=16
 111 .if ${PROFLEVEL} >= 2
 112 CFLAGS+=        -DGPROF4 -DGUPROF
 113 PROF=   -pg -mprofiler-epilogue
 114 .else
 115 PROF=   -pg
 116 .endif
 117 .endif
 118 DEFINED_PROF=   ${PROF}
 119
 120 # Put configuration-specific C flags last (except for ${PROF}) so that they
 121 # can override the others.
 122 CFLAGS+=        ${CONF_CFLAGS}
 123
 124 # Optional linting. This can be overridden in /etc/make.conf.
 125 LINTFLAGS=      ${LINTOBJKERNFLAGS}
 126
 127 NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
 128 NORMAL_S= ${CC} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC}
 129 PROFILE_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC}
 130 NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC}
 131
 132 NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \
 133           ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c
 134
 135 NORMAL_FW= uudecode -o ${.TARGET} ${.ALLSRC}
 136 NORMAL_FWO= ${LD} -b binary --no-warn-mismatch -d -warn-common -r \
 137         -o ${.TARGET} ${.ALLSRC:M*.fw}
 138
 139 NORMAL_CTFCONVERT= [ -z "${CTFCONVERT}" -o -n "${NO_CTF}" ] || \
 140                    ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
 141
 142 NORMAL_LINT=    ${LINT} ${LINTFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC}
 143
 144 # Infiniband C flags.  Correct include paths and omit errors that linux
 145 # does not honor.
 146 OFEDINCLUDES=   -I$S/ofed/include/
 147 OFEDNOERR=      -Wno-cast-qual -Wno-pointer-arith -fms-extensions
 148 OFEDCFLAGS=     ${CFLAGS:N-I*} ${OFEDINCLUDES} ${CFLAGS:M-I*} ${OFEDNOERR}
 149 OFED_C_NOIMP=   ${CC} -c -o ${.TARGET} ${OFEDCFLAGS} ${WERROR} ${PROF}
 150 OFED_C=         ${OFED_C_NOIMP} ${.IMPSRC}
 151
 152 GEN_CFILES= $S/$M/$M/genassym.c ${MFILES:T:S/.m$/.c/}
 153 SYSTEM_CFILES= config.c env.c hints.c vnode_if.c
 154 SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
 155 SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS}
 156 SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o}
 157 SYSTEM_OBJS+= hack.So
 158 SYSTEM_CTFMERGE= [ -z "${CTFMERGE}" -o -n "${NO_CTF}" ] || ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJS} vers.o
 159 SYSTEM_LD= @${LD} -Bdynamic -T ${LDSCRIPT} --no-warn-mismatch \
 160         -warn-common -export-dynamic -dynamic-linker /red/herring \
 161         -o ${.TARGET} -X ${SYSTEM_OBJS} vers.o
 162 SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \
 163         ${SIZE} ${.TARGET} ; chmod 755 ${.TARGET}
 164 SYSTEM_DEP+= ${LDSCRIPT}
 165
 166 # MKMODULESENV is set here so that port makefiles can augment
 167 # them.
 168
 169 MKMODULESENV+=  MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR}
 170 MKMODULESENV+=  MACHINE_CPUARCH=${MACHINE_CPUARCH}
 171 .if (${KERN_IDENT} == LINT)
 172 MKMODULESENV+=  ALL_MODULES=LINT
 173 .endif
 174 .if defined(MODULES_OVERRIDE)
 175 MKMODULESENV+=  MODULES_OVERRIDE="${MODULES_OVERRIDE}"
 176 .endif
 177 .if defined(WITHOUT_MODULES)
 178 MKMODULESENV+=  WITHOUT_MODULES="${WITHOUT_MODULES}"
 179 .endif
 180 .if defined(DEBUG)
 181 MKMODULESENV+=  DEBUG_FLAGS="${DEBUG}"
 182 .endif