sys/conf/kern.pre.mk

   1 # $DragonFly: src/sys/conf/kern.pre.mk,v 1.8 2008/11/17 11:55:19 swildner 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 #COPTFLAGS?=-O -fthread-jumps -fcse-follow-jumps -fcrossjumping -frerun-cse-after-loop -fno-guess-branch-probability --param min-crossjump-insns=1 -pipe
  22 #COPTFLAGS?=-O -fcrossjumping -pipe
  23 #COPTFLAGS?=-Os -fno-strict-aliasing -pipe
  24 #COPTFLAGS?=-O2 -fno-strict-aliasing -pipe
  25 .if !defined(NO_CPU_COPTFLAGS)
  26 COPTFLAGS+= ${_CPUCFLAGS}
  27 .endif
  28 # don't use -I- so we can use proper source-relative locality for local
  29 # includes.
  30 #
  31 # -I.  - this is to access the opt_*.h and use_*.h header files generated
  32 #        in the kernel build directory.
  33 #
  34 # -Iinclude
  35 #       - this is used to access forwarding header files for
  36 #         <machine/*.h> that exist in the cpu architecture but do not
  37 #         exist in the platform (machine/) architecture.  This allows
  38 #         the platform to trivially override the cpu header files.
  39 #
  40 INCLUDES= -nostdinc -I. -Iinclude -I$S
  41 # This hack is to allow kernel compiles to succeed on machines w/out srcdist
  42 .if exists($S/../include)
  43 INCLUDES+= -I$S/../include
  44 .else
  45 INCLUDES+= -I/usr/include
  46 .endif
  47
  48 # This hack lets us use the Intel ACPICA code without spamming a new
  49 # include path into 100+ source files.
  50 .include "$S/conf/acpi.mk"
  51 INCLUDES+= -I${.OBJDIR} -I"$S/${OSACPI_MI_DIR}" -I"$S/${ACPICA_DIR}/include"
  52
  53 # This hack lets us use the ipfilter code without spamming a new
  54 # include path into 100+ source files.
  55 INCLUDES+= -I$S/contrib/ipfilter
  56
  57 # ... and the same for Atheros HAL
  58 INCLUDES+= -I$S/dev/netif/ath/hal -I$S/dev/netif/ath/hal/ath_hal
  59
  60 COPTS=  ${INCLUDES} ${IDENT} -D_KERNEL -include opt_global.h
  61 CFLAGS= ${COPTFLAGS} ${CWARNFLAGS} ${DEBUG} ${COPTS}
  62
  63 # XXX LOCORE means "don't declare C stuff" not "for locore.s".
  64 ASM_CFLAGS= -x assembler-with-cpp -DLOCORE ${CFLAGS}
  65
  66 DEFINED_PROF=   ${PROF}
  67 .if defined(PROF)
  68 CFLAGS+=        -falign-functions=16
  69 .if ${PROFLEVEL} >= 2
  70 IDENT+= -DGPROF4 -DGUPROF
  71 PROF+=  -mprofiler-epilogue
  72 .endif
  73 .endif
  74
  75 # Put configuration-specific C flags last (except for ${PROF}) so that they
  76 # can override the others.
  77 CFLAGS+=        ${CONF_CFLAGS}
  78
  79 NORMAL_C= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC}
  80 NORMAL_C_C= ${CC} -c ${CFLAGS} ${PROF} ${.IMPSRC}
  81 NORMAL_S= ${CC} -c ${ASM_CFLAGS} ${.IMPSRC}
  82 PROFILE_C= ${CC} -c ${CFLAGS} ${.IMPSRC}
  83
  84 NORMAL_M= awk -f $S/tools/makeobjops.awk -- -c $<; \
  85         ${CC} -c ${CFLAGS} ${PROF} ${.PREFIX}.c
  86
  87 .if !defined(NO_WERROR) && ${CCVER} == "gcc41"
  88 WERROR=-Werror
  89 .endif
  90
  91 GEN_CFILES= $S/platform/$P/$M/genassym.c
  92 SYSTEM_CFILES= ioconf.c config.c
  93 SYSTEM_SFILES= $S/platform/$P/$M/locore.s
  94 SYSTEM_DEP= Makefile ${SYSTEM_OBJS}
  95 SYSTEM_OBJS= locore.o ${OBJS} ioconf.o config.o hack.So
  96 SYSTEM_LD= @${LD} -Bdynamic -T $S/platform/$P/conf/ldscript.$M \
  97         -export-dynamic -dynamic-linker /red/herring \
  98         -o ${.TARGET} -X ${SYSTEM_OBJS} vers.o
  99 SYSTEM_LD_TAIL= @${OBJCOPY} --strip-symbol gcc2_compiled. ${.TARGET} ; \
 100         ${SIZE} ${.TARGET} ; chmod 755 ${.TARGET}
 101 SYSTEM_DEP+= $S/platform/$P/conf/ldscript.$M
 102
 103 # Normalize output files to make it absolutely crystal clear to
 104 # anyone examining the build directory.
 105 #
 106 .if defined(DEBUG)
 107 FULLKERNEL=     ${KERNEL}.debug
 108 .if defined(INSTALLSTRIPPED)
 109 SELECTEDKERNEL= ${KERNEL}.stripped
 110 .else
 111 SELECTEDKERNEL= ${KERNEL}.debug
 112 .endif
 113 .else
 114 FULLKERNEL=     ${KERNEL}.nodebug
 115 SELECTEDKERNEL= ${KERNEL}.stripped
 116 .endif
 117
 118
 119 MKMODULESENV=   MAKEOBJDIRPREFIX=${.OBJDIR} BUILDING_WITH_KERNEL=${.OBJDIR}
 120 .if defined(MODULES_OVERRIDE)
 121 MKMODULESENV+=  MODULES_OVERRIDE="${MODULES_OVERRIDE}"
 122 .endif
 123 .if defined(DEBUG)
 124 MKMODULESENV+=  DEBUG="${DEBUG}" DEBUG_FLAGS="${DEBUG}"
 125 .endif
 126 .if defined(INSTALLSTRIPPED) || defined(INSTALLSTRIPPEDMODULES)
 127 MKMODULESENV+=  INSTALLSTRIPPEDMODULES=1
 128 .endif
 129 MKMODULESENV+=  MACHINE_ARCH=${MACHINE_ARCH} MACHINE=${MACHINE} MACHINE_PLATFORM=${MACHINE_PLATFORM}
 130