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