sys/conf/Makefile.arm

   1 # Makefile.arm -- with config changes.
   2 # Copyright 1990 W. Jolitz
   3 #       from: @(#)Makefile.i386 7.1 5/10/91
   4 # $FreeBSD$
   5 #
   6 # Makefile for FreeBSD
   7 #
   8 # This makefile is constructed from a machine description:
   9 #       config machineid
  10 # Most changes should be made in the machine description
  11 #       /sys/arm/conf/``machineid''
  12 # after which you should do
  13 #        config machineid
  14 # Generic makefile changes should be made in
  15 #       /sys/conf/Makefile.arm
  16 # after which config should be rerun for all machines.
  17 #
  18
  19 # Which version of config(8) is required.
  20 %VERSREQ=       600013
  21
  22 STD8X16FONT?=   iso
  23
  24 .if !defined(S)
  25 .if exists(./@/.)
  26 S=      ./@
  27 .else
  28 S=      ../../..
  29 .endif
  30 .endif
  31 .include "$S/conf/kern.pre.mk"
  32
  33 INCLUDES+= -I$S/contrib/libfdt -I$S/gnu/dts/include
  34
  35 SYSTEM_LD:= ${SYSTEM_LD:$S/conf/ldscript.$M=ldscript.$M}
  36 SYSTEM_DEP:= ${SYSTEM_DEP:$S/conf/ldscript.$M=ldscript.$M}
  37
  38 .if !defined(DEBUG) && !defined(PROFLEVEL)
  39 STRIP_FLAGS = -S
  40 .endif
  41
  42 # We don't support gcc's thump interwork stuff, so disable it
  43 CFLAGS.gcc += -mno-thumb-interwork
  44
  45 # We generally don't want fpu instructions in the kernel.
  46 CFLAGS.clang += -mfpu=none
  47
  48 .if !empty(DDB_ENABLED)
  49 CFLAGS += -funwind-tables
  50 .if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} < 30500
  51 # clang < 3.5.0 requires us to tell it to emit assembly with unwind information
  52 CFLAGS += -mllvm -arm-enable-ehabi
  53 .endif
  54 .endif
  55
  56 # "makeoptions KERNVIRTADDR=" is now optional, supply the default value.
  57 .if empty(KERNVIRTADDR)
  58 KERNVIRTADDR= 0xc0000000
  59 .endif
  60
  61 # hack because genassym.c includes sys/bus.h which includes these.
  62 genassym.o: bus_if.h device_if.h
  63
  64 SYSTEM_LD_ = ${LD} -m ${LD_EMULATION} -Bdynamic -T ldscript.$M.noheader \
  65         ${_LDFLAGS} --no-warn-mismatch --warn-common --export-dynamic \
  66         --dynamic-linker /red/herring \
  67         -o ${FULLKERNEL}.noheader -X ${SYSTEM_OBJS} vers.o
  68 SYSTEM_LD_TAIL +=;sed s/" + SIZEOF_HEADERS"// ldscript.$M \
  69                 >ldscript.$M.noheader; \
  70                 ${SYSTEM_LD_}; \
  71                 ${OBJCOPY} -S -O binary ${FULLKERNEL}.noheader \
  72                 ${KERNEL_KO}.bin; \
  73                 rm ${FULLKERNEL}.noheader
  74
  75 %BEFORE_DEPEND
  76
  77 %OBJS
  78
  79 %FILES.c
  80
  81 %FILES.s
  82
  83 %FILES.m
  84
  85 %CLEAN
  86
  87 CLEAN+= ldscript.$M ${KERNEL_KO}.bin ldscript.$M.noheader
  88
  89 ldscript.$M: $S/conf/ldscript.$M
  90         sed s/KERNVIRTADDR/${KERNVIRTADDR}/g > ldscript.$M < $S/conf/ldscript.$M
  91
  92 %RULES
  93
  94 .include "$S/conf/kern.post.mk"