sys/conf/kern.pre.mk

   1 # kern.pre.mk
   2 #
   3 # Unified Makefile for building kenrels.  This includes all the definitions
   4 # that need to be included before %BEFORE_DEPEND
   5 #
   6 # $FreeBSD$
   7 #
   8
   9 # Can be overridden by makeoptions or /etc/make.conf
  10 KERNEL_KO?=     kernel
  11 KERNEL?=        kernel
  12 KODIR?=         /boot/${KERNEL}
  13
  14 M=      ${MACHINE_ARCH}
  15
  16 NM?=            nm
  17 OBJCOPY?=       objcopy
  18 SIZE?=          size
  19
  20 COPTFLAGS?=-O -pipe
  21 .if !defined(NO_CPU_COPTFLAGS)
  22 COPTFLAGS+= ${_CPUCFLAGS}
  23 .endif
  24 INCLUDES= -nostdinc -I- ${INCLMAGIC} -I. -I$S -I$S/dev
  25
  26 # This hack lets us use the Intel ACPICA code without spamming a new
  27 # include path into 100+ source files.
  28 INCLUDES+= -I$S/contrib/dev/acpica
  29
  30 # ... and the same for ipfilter
  31 INCLUDES+= -I$S/contrib/ipfilter
  32
  33 # This hack is to allow kernel compiles to succeed on machines w/out srcdist
  34 .if exists($S/../include)
  35 INCLUDES+= -I$S/../include
  36 .else
  37 INCLUDES+= -I/usr/include
  38 .endif
  39
  40 COPTS=  ${INCLUDES} ${IDENT} -D_KERNEL -ffreestanding -include opt_global.h
  41 CFLAGS= ${COPTFLAGS} ${CWARNFLAGS} ${DEBUG} ${COPTS}
  42
  43 # XXX LOCORE means "don't declare C stuff" not "for locore.s".
  44 ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS}
  45
  46 # Select the correct set of tools. Can't set OBJFORMAT here because it
  47 # doesn't get exported into the environment, and if it were exported
  48 # then it might break building of utilities.
  49 FMT?=           -elf
  50 CFLAGS+=        ${FMT}
  51
  52 DEFINED_PROF=   ${PROF}
  53 .if defined(PROF)
  54 CFLAGS+=        -malign-functions=4
  55 .if ${PROFLEVEL} >= 2
  56 IDENT+= -DGPROF4 -DGUPROF
  57 PROF+=  -mprofiler-epilogue
  58 .endif
  59 .endif
  60
  61 # Put configuration-specific C flags last (except for ${PROF}) so that they
  62 # can override the others.
  63 CFLAGS+=        ${CONF_CFLAGS}
  64
  65 NORMAL_C= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC}
  66 NORMAL_C_C= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC}
  67 NORMAL_S= ${CC} -c ${ASM_CFLAGS} ${.IMPSRC}
  68 PROFILE_C= ${CC} -c ${CFLAGS} ${.IMPSRC}
  69
  70 NORMAL_M= perl5 $S/kern/makeobjops.pl -c $<; \
  71           ${CC} -c ${CFLAGS} ${PROF} ${.PREFIX}.c
  72
  73 GEN_CFILES= $S/$M/$M/genassym.c
  74 SYSTEM_CFILES= vnode_if.c hints.c env.c config.c
  75 SYSTEM_SFILES= $S/$M/$M/locore.s
  76 SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
  77 SYSTEM_OBJS= locore.o vnode_if.o ${OBJS} hints.o env.o config.o hack.So
  78 SYSTEM_LD= @${LD} ${FMT} -Bdynamic -T $S/conf/ldscript.$M \
  79         -export-dynamic -dynamic-linker /red/herring \
  80         -o ${.TARGET} -X ${SYSTEM_OBJS} vers.o
  81 SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \
  82         ${SIZE} ${FMT} ${.TARGET} ; chmod 755 ${.TARGET}
  83 SYSTEM_DEP+= $S/conf/ldscript.$M
  84
  85 all:    ${KERNEL_KO}