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 # The kernel build always occurs in the object directory which is .CURDIR.
  23 .if ${.MAKE.MODE:Unormal:Mmeta}
  24 .MAKE.MODE+=    curdirOk=yes
  25 .endif
  26
  27 .if defined(NO_OBJ) || ${MK_AUTO_OBJ} == "yes"
  28 NO_OBJ=         t
  29 NO_MODULES_OBJ= t
  30 .endif
  31 .if !defined(NO_OBJ)
  32 _obj=           obj
  33 .endif
  34
  35 # Can be overridden by makeoptions or /etc/make.conf
  36 KERNEL_KO?=     kernel
  37 KERNEL?=        kernel
  38 KODIR?=         /boot/${KERNEL}
  39 LDSCRIPT_NAME?= ldscript.$M
  40 LDSCRIPT?=      $S/conf/${LDSCRIPT_NAME}
  41
  42 M=              ${MACHINE}
  43
  44 AWK?=           awk
  45 CP?=            cp
  46 LINT?=          lint
  47 NM?=            nm
  48 OBJCOPY?=       objcopy
  49 SIZE?=          size
  50
  51 .if defined(DEBUG)
  52 _MINUS_O=       -O
  53 CTFFLAGS+=      -g
  54 .else
  55 .if ${MACHINE_CPUARCH} == "powerpc"
  56 _MINUS_O=       -O      # gcc miscompiles some code at -O2
  57 .else
  58 _MINUS_O=       -O2
  59 .endif
  60 .endif
  61 .if ${MACHINE_CPUARCH} == "amd64"
  62 .if ${COMPILER_TYPE} == "clang"
  63 COPTFLAGS?=-O2 -pipe
  64 .else
  65 COPTFLAGS?=-O2 -frename-registers -pipe
  66 .endif
  67 .else
  68 COPTFLAGS?=${_MINUS_O} -pipe
  69 .endif
  70 .if !empty(COPTFLAGS:M-O[23s]) && empty(COPTFLAGS:M-fno-strict-aliasing)
  71 COPTFLAGS+= -fno-strict-aliasing
  72 .endif
  73 .if !defined(NO_CPU_COPTFLAGS)
  74 COPTFLAGS+= ${_CPUCFLAGS}
  75 .endif
  76 NOSTDINC= -nostdinc
  77
  78 INCLUDES= ${NOSTDINC} ${INCLMAGIC} -I. -I$S
  79
  80 CFLAGS= ${COPTFLAGS} ${DEBUG}
  81 CFLAGS+= ${INCLUDES} -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h
  82 CFLAGS_PARAM_INLINE_UNIT_GROWTH?=100
  83 CFLAGS_PARAM_LARGE_FUNCTION_GROWTH?=1000
  84 .if ${MACHINE_CPUARCH} == "mips"
  85 CFLAGS_ARCH_PARAMS?=--param max-inline-insns-single=1000 -DMACHINE_ARCH='"${MACHINE_ARCH}"'
  86 .endif
  87 CFLAGS.gcc+= -fno-common -fms-extensions -finline-limit=${INLINE_LIMIT}
  88 CFLAGS.gcc+= --param inline-unit-growth=${CFLAGS_PARAM_INLINE_UNIT_GROWTH}
  89 CFLAGS.gcc+= --param large-function-growth=${CFLAGS_PARAM_LARGE_FUNCTION_GROWTH}
  90 .if defined(CFLAGS_ARCH_PARAMS)
  91 CFLAGS.gcc+=${CFLAGS_ARCH_PARAMS}
  92 .endif
  93 WERROR?= -Werror
  94
  95 # XXX LOCORE means "don't declare C stuff" not "for locore.s".
  96 ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS} ${ASM_CFLAGS.${.IMPSRC:T}}
  97
  98 .if defined(PROFLEVEL) && ${PROFLEVEL} >= 1
  99 CFLAGS+=        -DGPROF
 100 CFLAGS.gcc+=    -falign-functions=16
 101 .if ${PROFLEVEL} >= 2
 102 CFLAGS+=        -DGPROF4 -DGUPROF
 103 PROF=           -pg
 104 .if ${COMPILER_TYPE} == "gcc"
 105 PROF+=          -mprofiler-epilogue
 106 .endif
 107 .else
 108 PROF=           -pg
 109 .endif
 110 .endif
 111 DEFINED_PROF=   ${PROF}
 112
 113 # Put configuration-specific C flags last (except for ${PROF}) so that they
 114 # can override the others.
 115 CFLAGS+=        ${CONF_CFLAGS}
 116
 117 .if defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mbuild-id}
 118 LDFLAGS+=       -Wl,--build-id=sha1
 119 .endif
 120
 121 # Optional linting. This can be overridden in /etc/make.conf.
 122 LINTFLAGS=      ${LINTOBJKERNFLAGS}
 123
 124 NORMAL_C= ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
 125 NORMAL_S= ${CC:N${CCACHE_BIN}} -c ${ASM_CFLAGS} ${WERROR} ${.IMPSRC}
 126 PROFILE_C= ${CC} -c ${CFLAGS} ${WERROR} ${.IMPSRC}
 127 NORMAL_C_NOWERROR= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC}
 128
 129 NORMAL_M= ${AWK} -f $S/tools/makeobjops.awk ${.IMPSRC} -c ; \
 130           ${CC} -c ${CFLAGS} ${WERROR} ${PROF} ${.PREFIX}.c
 131
 132 NORMAL_FW= uudecode -o ${.TARGET} ${.ALLSRC}
 133 NORMAL_FWO= ${LD} -b binary --no-warn-mismatch -d -warn-common -r \
 134         -m ${LD_EMULATION} -o ${.TARGET} ${.ALLSRC:M*.fw}
 135
 136 # Common for dtrace / zfs
 137 CDDL_CFLAGS=    -DFREEBSD_NAMECACHE -nostdinc -I$S/cddl/compat/opensolaris -I$S/cddl/contrib/opensolaris/uts/common -I$S -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
 138 CDDL_CFLAGS+=   -include $S/cddl/compat/opensolaris/sys/debug_compat.h
 139 CDDL_C=         ${CC} -c ${CDDL_CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
 140
 141 # Special flags for managing the compat compiles for ZFS
 142 ZFS_CFLAGS=     -DBUILDING_ZFS -I$S/cddl/contrib/opensolaris/uts/common/fs/zfs
 143 ZFS_CFLAGS+=    -I$S/cddl/contrib/opensolaris/uts/common/fs/zfs/lua
 144 ZFS_CFLAGS+=    -I$S/cddl/contrib/opensolaris/uts/common/zmod
 145 ZFS_CFLAGS+=    -I$S/cddl/contrib/opensolaris/common/zfs
 146 ZFS_CFLAGS+=    ${CDDL_CFLAGS}
 147 ZFS_ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${ZFS_CFLAGS}
 148 ZFS_C=          ${CC} -c ${ZFS_CFLAGS} ${WERROR} ${PROF} ${.IMPSRC}
 149 ZFS_S=          ${CC} -c ${ZFS_ASM_CFLAGS} ${WERROR} ${.IMPSRC}
 150
 151 # Special flags for managing the compat compiles for DTrace
 152 DTRACE_CFLAGS=  -DBUILDING_DTRACE ${CDDL_CFLAGS} -I$S/cddl/dev/dtrace -I$S/cddl/dev/dtrace/${MACHINE_CPUARCH}
 153 .if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386"
 154 DTRACE_CFLAGS+= -I$S/cddl/contrib/opensolaris/uts/intel -I$S/cddl/dev/dtrace/x86
 155 .endif
 156 DTRACE_CFLAGS+= -I$S/cddl/contrib/opensolaris/common/util -I$S -DDIS_MEM -DSMP
 157 DTRACE_ASM_CFLAGS=      -x assembler-with-cpp -DLOCORE ${DTRACE_CFLAGS}
 158 DTRACE_C=       ${CC} -c ${DTRACE_CFLAGS}       ${WERROR} ${PROF} ${.IMPSRC}
 159 DTRACE_S=       ${CC} -c ${DTRACE_ASM_CFLAGS}   ${WERROR} ${.IMPSRC}
 160
 161 # Special flags for managing the compat compiles for DTrace/FBT
 162 FBT_CFLAGS=     -DBUILDING_DTRACE -nostdinc -I$S/cddl/dev/fbt/${MACHINE_CPUARCH} -I$S/cddl/dev/fbt -I$S/cddl/compat/opensolaris -I$S/cddl/contrib/opensolaris/uts/common -I$S ${CDDL_CFLAGS}
 163 .if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386"
 164 FBT_CFLAGS+=    -I$S/cddl/dev/fbt/x86
 165 .endif
 166 FBT_C=          ${CC} -c ${FBT_CFLAGS}          ${WERROR} ${PROF} ${.IMPSRC}
 167
 168 .if ${MK_CTF} != "no"
 169 NORMAL_CTFCONVERT=      ${CTFCONVERT} ${CTFFLAGS} ${.TARGET}
 170 .elif ${MAKE_VERSION} >= 5201111300
 171 NORMAL_CTFCONVERT=
 172 .else
 173 NORMAL_CTFCONVERT=      @:
 174 .endif
 175
 176 NORMAL_LINT=    ${LINT} ${LINTFLAGS} ${CFLAGS:M-[DIU]*} ${.IMPSRC}
 177
 178 # Linux Kernel Programming Interface C-flags
 179 LINUXKPI_INCLUDES=      -I$S/compat/linuxkpi/common/include
 180 LINUXKPI_C=             ${NORMAL_C} ${LINUXKPI_INCLUDES}
 181
 182 # Infiniband C flags.  Correct include paths and omit errors that linux
 183 # does not honor.
 184 OFEDINCLUDES=   -I$S/ofed/include ${LINUXKPI_INCLUDES}
 185 OFEDNOERR=      -Wno-cast-qual -Wno-pointer-arith
 186 OFEDCFLAGS=     ${CFLAGS:N-I*} ${OFEDINCLUDES} ${CFLAGS:M-I*} ${OFEDNOERR}
 187 OFED_C_NOIMP=   ${CC} -c -o ${.TARGET} ${OFEDCFLAGS} ${WERROR} ${PROF}
 188 OFED_C=         ${OFED_C_NOIMP} ${.IMPSRC}
 189
 190 GEN_CFILES= $S/$M/$M/genassym.c ${MFILES:T:S/.m$/.c/}
 191 SYSTEM_CFILES= config.c env.c hints.c vnode_if.c
 192 SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
 193 SYSTEM_OBJS= locore.o ${MDOBJS} ${OBJS}
 194 SYSTEM_OBJS+= ${SYSTEM_CFILES:.c=.o}
 195 SYSTEM_OBJS+= hack.pico
 196
 197 MD_ROOT_SIZE_CONFIGURED!=       grep MD_ROOT_SIZE opt_md.h || true ; echo
 198 .if ${MFS_IMAGE:Uno} != "no"
 199 .if empty(MD_ROOT_SIZE_CONFIGURED)
 200 SYSTEM_OBJS+= embedfs_${MFS_IMAGE:T:R}.o
 201 .endif
 202 .endif
 203 SYSTEM_LD= @${LD} -m ${LD_EMULATION} -Bdynamic -T ${LDSCRIPT} ${_LDFLAGS} \
 204         --no-warn-mismatch --warn-common --export-dynamic \
 205         --dynamic-linker /red/herring \
 206         -o ${.TARGET} -X ${SYSTEM_OBJS} vers.o
 207 SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \
 208         ${SIZE} ${.TARGET} ; chmod 755 ${.TARGET}
 209 SYSTEM_DEP+= ${LDSCRIPT}
 210
 211 # Calculate path for .m files early, if needed.
 212 .if !defined(NO_MODULES) && !defined(__MPATH) && !make(install)
 213 __MPATH!=find ${S:tA}/ -name \*_if.m
 214 .endif
 215
 216 # MKMODULESENV is set here so that port makefiles can augment
 217 # them.
 218
 219 MKMODULESENV+=  MAKEOBJDIRPREFIX=${.OBJDIR}/modules KMODDIR=${KODIR}
 220 MKMODULESENV+=  MACHINE_CPUARCH=${MACHINE_CPUARCH}
 221 MKMODULESENV+=  MACHINE=${MACHINE} MACHINE_ARCH=${MACHINE_ARCH}
 222 MKMODULESENV+=  MODULES_EXTRA="${MODULES_EXTRA}" WITHOUT_MODULES="${WITHOUT_MODULES}"
 223 MKMODULESENV+=  ARCH_FLAGS="${ARCH_FLAGS}"
 224 .if (${KERN_IDENT} == LINT)
 225 MKMODULESENV+=  ALL_MODULES=LINT
 226 .endif
 227 .if defined(MODULES_OVERRIDE)
 228 MKMODULESENV+=  MODULES_OVERRIDE="${MODULES_OVERRIDE}"
 229 .endif
 230 .if defined(DEBUG)
 231 MKMODULESENV+=  DEBUG_FLAGS="${DEBUG}"
 232 .endif
 233 .if !defined(NO_MODULES)
 234 MKMODULESENV+=  __MPATH="${__MPATH}"
 235 .endif
 236
 237 # Architecture and output format arguments for objdump to convert image to
 238 # object file
 239
 240 .if ${MFS_IMAGE:Uno} != "no"
 241 .if empty(MD_ROOT_SIZE_CONFIGURED)
 242 .if !defined(EMBEDFS_FORMAT.${MACHINE_ARCH})
 243 EMBEDFS_FORMAT.${MACHINE_ARCH}!= awk -F'"' '/OUTPUT_FORMAT/ {print $$2}' ${LDSCRIPT}
 244 .if empty(EMBEDFS_FORMAT.${MACHINE_ARCH})
 245 .undef EMBEDFS_FORMAT.${MACHINE_ARCH}
 246 .endif
 247 .endif
 248
 249 .if !defined(EMBEDFS_ARCH.${MACHINE_ARCH})
 250 EMBEDFS_ARCH.${MACHINE_ARCH}!= sed -n '/OUTPUT_ARCH/s/.*(\(.*\)).*/\1/p' ${LDSCRIPT}
 251 .if empty(EMBEDFS_ARCH.${MACHINE_ARCH})
 252 .undef EMBEDFS_ARCH.${MACHINE_ARCH}
 253 .endif
 254 .endif
 255
 256 EMBEDFS_FORMAT.arm?=            elf32-littlearm
 257 EMBEDFS_FORMAT.armv6?=          elf32-littlearm
 258 EMBEDFS_FORMAT.armv7?=          elf32-littlearm
 259 EMBEDFS_FORMAT.aarch64?=        elf64-littleaarch64
 260 EMBEDFS_FORMAT.mips?=           elf32-tradbigmips
 261 EMBEDFS_FORMAT.mipsel?=         elf32-tradlittlemips
 262 EMBEDFS_FORMAT.mips64?=         elf64-tradbigmips
 263 EMBEDFS_FORMAT.mips64el?=       elf64-tradlittlemips
 264 EMBEDFS_FORMAT.riscv?=          elf64-littleriscv
 265 .endif
 266 .endif
 267
 268 # Detect kernel config options that force stack frames to be turned on.
 269 DDB_ENABLED!=   grep DDB opt_ddb.h || true ; echo
 270 DTR_ENABLED!=   grep KDTRACE_FRAME opt_kdtrace.h || true ; echo
 271 HWPMC_ENABLED!= grep HWPMC opt_hwpmc_hooks.h || true ; echo