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 # Allow user to configure things that only effect src tree builds.
   7 # Note: This is duplicated from src.sys.mk to ensure that we include
   8 # /etc/src.conf when building the kernel. Kernels can be built without
   9 # the rest of /usr/src, but they still always process SRCCONF even though
  10 # the normal mechanisms to prevent that (compiling out of tree) won't
  11 # work. To ensure they do work, we have to duplicate thee few lines here.
  12 SRCCONF?=       /etc/src.conf
  13 .if (exists(${SRCCONF}) || ${SRCCONF} != "/etc/src.conf") && !target(_srcconf_included_)
  14 .include "${SRCCONF}"
  15 _srcconf_included_:
  16 .endif
  17
  18 .include <bsd.own.mk>
  19 .include <bsd.compiler.mk>
  20 .include "kern.opts.mk"
  21
  22 # Can be overridden by makeoptions or /etc/make.conf
  23 KERNEL_KO?=     kernel
  24 KERNEL?=        kernel
  25 KODIR?=         /boot/${KERNEL}
  26 LDSCRIPT_NAME?= ldscript.$M
  27 LDSCRIPT?=      $S/conf/${LDSCRIPT_NAME}
  28
  29 M=              ${MACHINE_CPUARCH}
  30
  31 AWK?=           awk
  32 CP?=            cp
  33 LINT?=          lint
  34 NM?=            nm
  35 OBJCOPY?=       objcopy
  36 SIZE?=          size
  37
  38 .if defined(DEBUG)
  39 _MINUS_O=       -O
  40 CTFFLAGS+=      -g
  41 .else
  42 .if ${MACHINE_CPUARCH} == "powerpc"
  43 _MINUS_O=       -O      # gcc miscompiles some code at -O2
  44 .else
  45 _MINUS_O=       -O2
  46 .endif
  47 .endif
  48 .if ${MACHINE_CPUARCH} == "amd64"
  49 .if ${COMPILER_TYPE} == "clang"
  50 COPTFLAGS?=-O2 -pipe
  51 .else
  52 COPTFLAGS?=-O2 -frename-registers -pipe
  53 .endif
  54 .else
  55 COPTFLAGS?=${_MINUS_O} -pipe
  56 .endif
  57 .if !empty(COPTFLAGS:M-O[23s]) && empty(COPTFLAGS:M-fno-strict-aliasing)
  58 COPTFLAGS+= -fno-strict-aliasing
  59 .endif
  60 .if !defined(NO_CPU_COPTFLAGS)
  61 COPTFLAGS+= ${_CPUCFLAGS}
  62 .endif
  63 C_DIALECT= -std=c99
  64 NOSTDINC= -nostdinc
  65
  66 INCLUDES= ${NOSTDINC} ${INCLMAGIC} -I. -I$S
  67
  68 # This hack lets us use the OpenBSD altq code without spamming a new
  69 # include path into contrib'ed source files.
  70 INCLUDES+= -I$S/contrib/altq
  71
  72 .if make(depend) || make(kernel-depend)
  73
  74 # ... and the same for ipfilter
  75 INCLUDES+= -I$S/contrib/ipfilter
  76
  77 # ... and the same for ath
  78 INCLUDES+= -I$S/dev/ath -I$S/dev/ath/ath_hal -I$S/contrib/dev/ath/ath_hal
  79
  80 # ... and the same for the NgATM stuff
  81 INCLUDES+= -I$S/contrib/ngatm
  82
  83 # ... and the same for twa
  84 INCLUDES+= -I$S/dev/twa
  85
  86 # ... and the same for cxgb and cxgbe
  87 INCLUDES+= -I$S/dev/cxgb -I$S/dev/cxgbe
  88
  89 .endif
  90
  91 CFLAGS= ${COPTFLAGS} ${C_DIALECT} ${DEBUG} ${CWARNFLAGS}
  92 CFLAGS+= ${INCLUDES} -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h
  93 CFLAGS_PARAM_INLINE_UNIT_GROWTH?=100
  94 CFLAGS_PARAM_LARGE_FUNCTION_GROWTH?=1000
  95 .if ${MACHINE_CPUARCH} == "mips"
  96 CFLAGS_ARCH_PARAMS?=--param max-inline-insns-single=1000
  97 .endif
  98 CFLAGS.gcc+= -fno-common -finline-limit=${INLINE_LIMIT}
  99 CFLAGS.gcc+= --param inline-unit-growth=${CFLAGS_PARAM_INLINE_UNIT_GROWTH}
 100 CFLAGS.gcc+= --param large-function-growth=${CFLAGS_PARAM_LARGE_FUNCTION_GROWTH}
 101 .if defined(CFLAGS_ARCH_PARAMS)
 102 CFLAGS.gcc+=${CFLAGS_ARCH_PARAMS}
 103 .endif
 104 WERROR?= -Werror
 105
 106 # XXX LOCORE means "don't declare C stuff" not "for locore.s".
 107 ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS}
 108
 109 .if ${COMPILER_TYPE} == "clang"
 110 CLANG_NO_IAS= -no-integrated-as
 111 .else
 112 GCC_MS_EXTENSIONS= -fms-extensions
 113 .endif
 114
 115 .if defined(PROFLEVEL) && ${PROFLEVEL} >= 1
 116 CFLAGS+=        -DGPROF
 117 CFLAGS.gcc+=    -falign-functions=16
 118 .if ${PROFLEVEL} >= 2
 119 CFLAGS+=        -DGPROF4 -DGUPROF
 120 PROF=           -pg
 121 .if ${COMPILER_TYPE} == "gcc"
 122 PROF+=          -mprofiler-epilogue
 123 .endif
 124 .else
 125 PROF=           -pg
 126 .endif
 127 .endif
 128 DEFINED_PROF=   ${PROF}
 129
 130 # Put configuration-specific C flags last (except for ${PROF}) so that they
 131 # can override the others.
 132 CFLAGS+=        ${CONF_CFLAGS}
 133
 134 # Optional linting. This can be overridden in /etc/make.conf.
 135 LINTFLAGS=      ${LINTOBJKERNFLAGS}
 136
 137 NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
 138 NORMAL_S= ${CC} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC}
 139 PROFILE_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC}
 140 NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC}
 141
 142 NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \
 143           ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c
 144
 145 NORMAL_FW= uudecode -o ${.TARGET} ${.ALLSRC}
 146 NORMAL_FWO= ${LD} -b binary --no-warn-mismatch -d -warn-common -r \
 147         -o ${.TARGET} ${.ALLSRC:M*.fw}
 148
 149 # Special flags for managing the compat compiles for ZFS
 150 ZFS_CFLAGS=     -DFREEBSD_NAMECACHE -DBUILDING_ZFS -nostdinc -I$S/cddl/compat/opensolaris -I$S/cddl/contrib/opensolaris/uts/common/fs/zfs -I$S/cddl/contrib/opensolaris/uts/common/zmod -I$S/cddl/contrib/opensolaris/uts/common -I$S -I$S/cddl/contrib/opensolaris/common/zfs -I$S/cddl/contrib/opensolaris/common ${CFLAGS} -Wno-unknown-pragmas -Wno-missing-prototypes -Wno-undef -Wno-strict-prototypes -Wno-cast-qual -Wno-parentheses -Wno-redundant-decls -Wno-missing-braces -Wno-uninitialized -Wno-unused -Wno-inline -Wno-switch -Wno-pointer-arith -Wno-unknown-pragmas
 151 ZFS_CFLAGS+=    -include $S/cddl/compat/opensolaris/sys/debug_compat.h
 152 ZFS_ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${ZFS_CFLAGS}
 153 ZFS_C=          ${CC} -c ${ZFS_CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
 154 ZFS_S=          ${CC} -c ${ZFS_ASM_CFLAGS} ${WERROR} ${.IMPSRC}
 155
 156 .if ${MK_CTF} != "no"
 157 NORMAL_CTFCONVERT=      ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
 158 .elif ${MAKE_VERSION} >= 5201111300
 159 NORMAL_CTFCONVERT=
 160 .else
 161 NORMAL_CTFCONVERT=      @:
 162 .endif
 163
 164 NORMAL_LINT=    ${LINT} ${LINTFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC}
 165
 166 # Infiniband C flags.  Correct include paths and omit errors that linux
 167 # does not honor.
 168 OFEDINCLUDES=   -I$S/ofed/include/
 169 OFEDNOERR=      -Wno-cast-qual -Wno-pointer-arith ${GCC_MS_EXTENSIONS}
 170 OFEDCFLAGS=     ${CFLAGS:N-I*} ${OFEDINCLUDES} ${CFLAGS:M-I*} ${OFEDNOERR}
 171 OFED_C_NOIMP=   ${CC} -c -o ${.TARGET} ${OFEDCFLAGS} ${WERROR} ${PROF}
 172 OFED_C=         ${OFED_C_NOIMP} ${.IMPSRC}
 173
 174 GEN_CFILES= $S/$M/$M/genassym.c ${MFILES:T:S/.m$/.c/}
 175 SYSTEM_CFILES= config.c env.c hints.c vnode_if.c
 176 SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
 177 SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS}
 178 SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o}
 179 SYSTEM_OBJS+= hack.So
 180 SYSTEM_LD= @${LD} -Bdynamic -T ${LDSCRIPT} ${LDFLAGS} --no-warn-mismatch \
 181         -warn-common -export-dynamic -dynamic-linker /red/herring \
 182         -o ${.TARGET} -X ${SYSTEM_OBJS} vers.o
 183 SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \
 184         ${SIZE} ${.TARGET} ; chmod 755 ${.TARGET}
 185 SYSTEM_DEP+= ${LDSCRIPT}
 186
 187 # MKMODULESENV is set here so that port makefiles can augment
 188 # them.
 189
 190 MKMODULESENV+=  MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR}
 191 MKMODULESENV+=  MACHINE_CPUARCH=${MACHINE_CPUARCH}
 192 MKMODULESENV+=  MACHINE=${MACHINE} MACHINE_ARCH=${MACHINE_ARCH}
 193 .if (${KERN_IDENT} == LINT)
 194 MKMODULESENV+=  ALL_MODULES=LINT
 195 .endif
 196 .if defined(MODULES_OVERRIDE)
 197 MKMODULESENV+=  MODULES_OVERRIDE="${MODULES_OVERRIDE}"
 198 .endif
 199 .if defined(WITHOUT_MODULES)
 200 MKMODULESENV+=  WITHOUT_MODULES="${WITHOUT_MODULES}"
 201 .endif
 202 .if defined(DEBUG)
 203 MKMODULESENV+=  DEBUG_FLAGS="${DEBUG}"
 204 .endif
 205
 206 # Detect kernel config options that force stack frames to be turned on.
 207 DDB_ENABLED!=   grep DDB opt_ddb.h || true ; echo
 208 DTR_ENABLED!=   grep KDTRACE_FRAME opt_kdtrace.h || true ; echo
 209 HWPMC_ENABLED!= grep HWPMC opt_hwpmc_hooks.h || true ; echo