sys/conf/kern.pre.mk

   1 # $DragonFly: src/sys/conf/kern.pre.mk,v 1.5 2007/02/22 21:02:49 corecode Exp $
   2 #
   3 # This Makefile covers the top part of the MI kernel build instructions
   4 #
   5
   6 # Can be overridden by makeoptions or /etc/make.conf
   7 KERNEL?=        kernel
   8
   9 # build this target if none is specified on the command line
  10 .MAIN:  all
  11
  12 # Set the platform and machine architectures
  13 #
  14 P=      ${MACHINE_PLATFORM}
  15 M=      ${MACHINE_ARCH}
  16
  17 SIZE?=          size
  18 OBJCOPY?=       objcopy
  19
  20 COPTFLAGS?=-O -pipe
  21 .if !defined(NO_CPU_COPTFLAGS)
  22 COPTFLAGS+= ${_CPUCFLAGS}
  23 .endif
  24 # don't use -I- so we can use proper source-relative locality for local
  25 # includes.
  26 #
  27 # -I.  - this is to access the opt_*.h and use_*.h header files generated
  28 #        in the kernel build directory.
  29 #
  30 # -Iinclude
  31 #       - this is used to access forwarding header files for
  32 #         <machine/*.h> that exist in the cpu architecture but do not
  33 #         exist in the platform (machine/) architecture.  This allows
  34 #         the platform to trivially override the cpu header files.
  35 #
  36 INCLUDES= -nostdinc -I. -Iinclude -I$S
  37 # This hack is to allow kernel compiles to succeed on machines w/out srcdist
  38 .if exists($S/../include)
  39 INCLUDES+= -I$S/../include
  40 .else
  41 INCLUDES+= -I/usr/include
  42 .endif
  43
  44 # This hack lets us use the Intel ACPICA code without spamming a new
  45 # include path into 100+ source files.
  46 .include "$S/conf/acpi.mk"
  47 INCLUDES+= -I${.OBJDIR} -I"$S/${OSACPI_MI_DIR}" -I"$S/${ACPICA_DIR}/include"
  48
  49 # This hack lets us use the ipfilter code without spamming a new
  50 # include path into 100+ source files.
  51 INCLUDES+= -I$S/contrib/ipfilter
  52
  53 COPTS=  ${INCLUDES} ${IDENT} -D_KERNEL -include opt_global.h
  54 CFLAGS= ${COPTFLAGS} ${CWARNFLAGS} ${DEBUG} ${COPTS}
  55
  56 # XXX LOCORE means "don't declare C stuff" not "for locore.s".
  57 ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS}
  58
  59 DEFINED_PROF=   ${PROF}
  60 .if defined(PROF)
  61 CFLAGS+=        -falign-functions=16
  62 .if ${PROFLEVEL} >= 2
  63 IDENT+= -DGPROF4 -DGUPROF
  64 PROF+=  -mprofiler-epilogue
  65 .endif
  66 .endif
  67
  68 # Put configuration-specific C flags last (except for ${PROF}) so that they
  69 # can override the others.
  70 CFLAGS+=        ${CONF_CFLAGS}
  71
  72 NORMAL_C= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC}
  73 NORMAL_C_C= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC}
  74 NORMAL_S= ${CC} -c ${ASM_CFLAGS} ${.IMPSRC}
  75 PROFILE_C= ${CC} -c ${CFLAGS} ${.IMPSRC}
  76
  77 NORMAL_M= awk -f $S/tools/makeobjops.awk -- -c $<; \
  78         ${CC} -c ${CFLAGS} ${PROF} ${.PREFIX}.c
  79
  80 GEN_CFILES= $S/platform/$P/$M/genassym.c
  81 SYSTEM_CFILES= ioconf.c config.c
  82 SYSTEM_SFILES= $S/platform/$P/$M/locore.s
  83 SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
  84 SYSTEM_OBJS= locore.o ${OBJS} ioconf.o config.o hack.So
  85 SYSTEM_LD= @${LD} -Bdynamic -T $S/platform/$P/conf/ldscript.$M \
  86         -export-dynamic -dynamic-linker /red/herring \
  87         -o ${.TARGET} -X ${SYSTEM_OBJS} vers.o
  88 SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \
  89         ${SIZE} ${.TARGET} ; chmod 755 ${.TARGET}
  90 SYSTEM_DEP+= $S/platform/$P/conf/ldscript.$M
  91
  92 # Normalize output files to make it absolutely crystal clear to
  93 # anyone examining the build directory.
  94 #
  95 .if defined(DEBUG)
  96 FULLKERNEL=     ${KERNEL}.debug
  97 .if defined(INSTALLSTRIPPED)
  98 SELECTEDKERNEL= ${KERNEL}.stripped
  99 .else
 100 SELECTEDKERNEL= ${KERNEL}.debug
 101 .endif
 102 .else
 103 FULLKERNEL=     ${KERNEL}.nodebug
 104 SELECTEDKERNEL= ${KERNEL}.stripped
 105 .endif
 106 DESTKERNNAME?=  ${KERNEL}
 107
 108
 109 MKMODULESENV=   MAKEOBJDIRPREFIX=${.OBJDIR} BUILDING_WITH_KERNEL=${.OBJDIR}
 110 .if defined(MODULES_OVERRIDE)
 111 MKMODULESENV+=  MODULES_OVERRIDE="${MODULES_OVERRIDE}"
 112 .endif
 113 .if defined(DEBUG)
 114 MKMODULESENV+=  DEBUG="${DEBUG}" DEBUG_FLAGS="${DEBUG}"
 115 .endif
 116 .if defined(INSTALLSTRIPPED) || defined(INSTALLSTRIPPEDMODULES)
 117 MKMODULESENV+=  INSTALLSTRIPPEDMODULES=1
 118 .endif
 119