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 NOSTDINC= -nostdinc
  64
  65 INCLUDES= ${NOSTDINC} ${INCLMAGIC} -I. -I$S
  66
  67 # This hack lets us use the OpenBSD altq code without spamming a new
  68 # include path into contrib'ed source files.
  69 INCLUDES+= -I$S/contrib/altq
  70
  71 .if make(depend) || make(kernel-depend)
  72
  73 # ... and the same for ipfilter
  74 INCLUDES+= -I$S/contrib/ipfilter
  75
  76 # ... and the same for ath
  77 INCLUDES+= -I$S/dev/ath -I$S/dev/ath/ath_hal -I$S/contrib/dev/ath/ath_hal
  78
  79 # ... and the same for the NgATM stuff
  80 INCLUDES+= -I$S/contrib/ngatm
  81
  82 # ... and the same for twa
  83 INCLUDES+= -I$S/dev/twa
  84
  85 # ... and the same for cxgb and cxgbe
  86 INCLUDES+= -I$S/dev/cxgb -I$S/dev/cxgbe
  87
  88 .endif
  89
  90 CFLAGS= ${COPTFLAGS} ${DEBUG} ${CWARNFLAGS}
  91 CFLAGS+= ${INCLUDES} -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h
  92 CFLAGS_PARAM_INLINE_UNIT_GROWTH?=100
  93 CFLAGS_PARAM_LARGE_FUNCTION_GROWTH?=1000
  94 .if ${MACHINE_CPUARCH} == "mips"
  95 CFLAGS_ARCH_PARAMS?=--param max-inline-insns-single=1000
  96 .endif
  97 CFLAGS.gcc+= -fno-common -finline-limit=${INLINE_LIMIT}
  98 CFLAGS.gcc+= --param inline-unit-growth=${CFLAGS_PARAM_INLINE_UNIT_GROWTH}
  99 CFLAGS.gcc+= --param large-function-growth=${CFLAGS_PARAM_LARGE_FUNCTION_GROWTH}
 100 .if defined(CFLAGS_ARCH_PARAMS)
 101 CFLAGS.gcc+=${CFLAGS_ARCH_PARAMS}
 102 .endif
 103 WERROR?= -Werror
 104
 105 # XXX LOCORE means "don't declare C stuff" not "for locore.s".
 106 ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS} ${ASM_CFLAGS.${.IMPSRC:T}}
 107
 108 .if defined(PROFLEVEL) && ${PROFLEVEL} >= 1
 109 CFLAGS+=        -DGPROF
 110 CFLAGS.gcc+=    -falign-functions=16
 111 .if ${PROFLEVEL} >= 2
 112 CFLAGS+=        -DGPROF4 -DGUPROF
 113 PROF=           -pg
 114 .if ${COMPILER_TYPE} == "gcc"
 115 PROF+=          -mprofiler-epilogue
 116 .endif
 117 .else
 118 PROF=           -pg
 119 .endif
 120 .endif
 121 DEFINED_PROF=   ${PROF}
 122
 123 # Put configuration-specific C flags last (except for ${PROF}) so that they
 124 # can override the others.
 125 CFLAGS+=        ${CONF_CFLAGS}
 126
 127 # Optional linting. This can be overridden in /etc/make.conf.
 128 LINTFLAGS=      ${LINTOBJKERNFLAGS}
 129
 130 NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
 131 NORMAL_S= ${CC} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC}
 132 PROFILE_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC}
 133 NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC}
 134
 135 NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \
 136           ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c
 137
 138 NORMAL_FW= uudecode -o ${.TARGET} ${.ALLSRC}
 139 NORMAL_FWO= ${LD} -b binary --no-warn-mismatch -d -warn-common -r \
 140         -o ${.TARGET} ${.ALLSRC:M*.fw}
 141
 142 # Special flags for managing the compat compiles for ZFS
 143 ZFS_CFLAGS=     -DFREEBSD_NAMECACHE -DBUILDING_ZFS -nostdinc -I$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
 144 ZFS_CFLAGS+=    -include $S/cddl/compat/opensolaris/sys/debug_compat.h
 145 ZFS_ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${ZFS_CFLAGS}
 146 ZFS_C=          ${CC} -c ${ZFS_CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
 147 ZFS_S=          ${CC} -c ${ZFS_ASM_CFLAGS} ${WERROR} ${.IMPSRC}
 148
 149 .if ${MK_CTF} != "no"
 150 NORMAL_CTFCONVERT=      ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
 151 .elif ${MAKE_VERSION} >= 5201111300
 152 NORMAL_CTFCONVERT=
 153 .else
 154 NORMAL_CTFCONVERT=      @:
 155 .endif
 156
 157 NORMAL_LINT=    ${LINT} ${LINTFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC}
 158
 159 # Infiniband C flags.  Correct include paths and omit errors that linux
 160 # does not honor.
 161 OFEDINCLUDES=   -I$S/ofed/include/
 162 OFEDNOERR=      -Wno-cast-qual -Wno-pointer-arith ${GCC_MS_EXTENSIONS}
 163 OFEDCFLAGS=     ${CFLAGS:N-I*} ${OFEDINCLUDES} ${CFLAGS:M-I*} ${OFEDNOERR}
 164 OFED_C_NOIMP=   ${CC} -c -o ${.TARGET} ${OFEDCFLAGS} ${WERROR} ${PROF}
 165 OFED_C=         ${OFED_C_NOIMP} ${.IMPSRC}
 166
 167 GEN_CFILES= $S/$M/$M/genassym.c ${MFILES:T:S/.m$/.c/}
 168 SYSTEM_CFILES= config.c env.c hints.c vnode_if.c
 169 SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
 170 SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS}
 171 SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o}
 172 SYSTEM_OBJS+= hack.So
 173 SYSTEM_LD= @${LD} -Bdynamic -T ${LDSCRIPT} ${_LDFLAGS} --no-warn-mismatch \
 174         -warn-common -export-dynamic -dynamic-linker /red/herring \
 175         -o ${.TARGET} -X ${SYSTEM_OBJS} vers.o
 176 SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \
 177         ${SIZE} ${.TARGET} ; chmod 755 ${.TARGET}
 178 SYSTEM_DEP+= ${LDSCRIPT}
 179
 180 # MKMODULESENV is set here so that port makefiles can augment
 181 # them.
 182
 183 MKMODULESENV+=  MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR}
 184 MKMODULESENV+=  MACHINE_CPUARCH=${MACHINE_CPUARCH}
 185 MKMODULESENV+=  MACHINE=${MACHINE} MACHINE_ARCH=${MACHINE_ARCH}
 186 .if (${KERN_IDENT} == LINT)
 187 MKMODULESENV+=  ALL_MODULES=LINT
 188 .endif
 189 .if defined(MODULES_OVERRIDE)
 190 MKMODULESENV+=  MODULES_OVERRIDE="${MODULES_OVERRIDE}"
 191 .endif
 192 .if defined(WITHOUT_MODULES)
 193 MKMODULESENV+=  WITHOUT_MODULES="${WITHOUT_MODULES}"
 194 .endif
 195 .if defined(DEBUG)
 196 MKMODULESENV+=  DEBUG_FLAGS="${DEBUG}"
 197 .endif
 198
 199 # Detect kernel config options that force stack frames to be turned on.
 200 DDB_ENABLED!=   grep DDB opt_ddb.h || true ; echo
 201 DTR_ENABLED!=   grep KDTRACE_FRAME opt_kdtrace.h || true ; echo
 202 HWPMC_ENABLED!= grep HWPMC opt_hwpmc_hooks.h || true ; echo