arch/frv/Makefile

   1 #
   2 # frv/Makefile
   3 #
   4 # This file is included by the global makefile so that you can add your own
   5 # architecture-specific flags and dependencies. Remember to do have actions
   6 # for "archclean" and "archdep" for cleaning up and making dependencies for
   7 # this architecture
   8 #
   9 # This file is subject to the terms and conditions of the GNU General Public
  10 # License.  See the file "COPYING" in the main directory of this archive
  11 # for more details.
  12 #
  13 # Copyright (c) 2003, 2004 Red Hat Inc.
  14 # - Written by David Howells <dhowells@redhat.com>
  15 # - Derived from arch/m68knommu/Makefile,
  16 #       Copyright (c) 1999,2001  D. Jeff Dionne <jeff@lineo.ca>,
  17 #       Rt-Control Inc. / Lineo, Inc.
  18 #
  19 # Copyright (C) 1998,1999  D. Jeff Dionne <jeff@uclinux.org>,
  20 #                          Kenneth Albanowski <kjahds@kjahds.com>,
  21 #
  22 # Based on arch/m68k/Makefile:
  23 # Copyright (C) 1994 by Hamish Macdonald
  24 #
  25
  26 CCSPECS := $(shell $(CC) -v 2>&1 | grep "^Reading specs from " | head -1 | cut -c20-)
  27 CCDIR   := $(strip $(patsubst %/specs,%,$(CCSPECS)))
  28 CPUCLASS := fr400
  29
  30 # test for cross compiling
  31 COMPILE_ARCH = $(shell uname -m)
  32
  33 ifdef CONFIG_MMU
  34 UTS_SYSNAME = -DUTS_SYSNAME=\"Linux\"
  35 else
  36 UTS_SYSNAME = -DUTS_SYSNAME=\"uClinux\"
  37 endif
  38
  39 ARCHMODFLAGS    += -G0 -mlong-calls
  40
  41 ifdef CONFIG_GPREL_DATA_8
  42 KBUILD_CFLAGS   += -G8
  43 else
  44 ifdef CONFIG_GPREL_DATA_4
  45 KBUILD_CFLAGS   += -G4
  46 else
  47 ifdef CONFIG_GPREL_DATA_NONE
  48 KBUILD_CFLAGS   += -G0
  49 endif
  50 endif
  51 endif
  52
  53 #LDFLAGS_vmlinux        := -Map linkmap.txt
  54
  55 ifdef CONFIG_GC_SECTIONS
  56 KBUILD_CFLAGS   += -ffunction-sections -fdata-sections
  57 LINKFLAGS       += --gc-sections
  58 endif
  59
  60 ifndef CONFIG_FRAME_POINTER
  61 KBUILD_CFLAGS   += -mno-linked-fp
  62 endif
  63
  64 ifdef CONFIG_CPU_FR451_COMPILE
  65 KBUILD_CFLAGS   += -mcpu=fr450
  66 KBUILD_AFLAGS   += -mcpu=fr450
  67 ASFLAGS         += -mcpu=fr450
  68 else
  69 ifdef CONFIG_CPU_FR551_COMPILE
  70 KBUILD_CFLAGS   += -mcpu=fr550
  71 KBUILD_AFLAGS   += -mcpu=fr550
  72 ASFLAGS         += -mcpu=fr550
  73 else
  74 KBUILD_CFLAGS   += -mcpu=fr400
  75 KBUILD_AFLAGS   += -mcpu=fr400
  76 ASFLAGS         += -mcpu=fr400
  77 endif
  78 endif
  79
  80 # pretend the kernel is going to run on an FR400 with no media-fp unit
  81 # - reserve CC3 for use with atomic ops
  82 # - all the extra registers are dealt with only at context switch time
  83 KBUILD_CFLAGS   += -mno-fdpic -mgpr-32 -msoft-float -mno-media
  84 KBUILD_CFLAGS   += -ffixed-fcc3 -ffixed-cc3 -ffixed-gr15 -ffixed-icc2
  85 KBUILD_AFLAGS   += -mno-fdpic
  86 ASFLAGS         += -mno-fdpic
  87
  88 # make sure the .S files get compiled with debug info
  89 # and disable optimisations that are unhelpful whilst debugging
  90 ifdef CONFIG_DEBUG_INFO
  91 #KBUILD_CFLAGS  += -O1
  92 KBUILD_AFLAGS   += -Wa,--gdwarf2
  93 ASFLAGS         += -Wa,--gdwarf2
  94 endif
  95
  96 head-y          := arch/frv/kernel/head.o arch/frv/kernel/init_task.o
  97
  98 core-y          += arch/frv/kernel/ arch/frv/mm/
  99 libs-y          += arch/frv/lib/
 100
 101 core-$(CONFIG_MB93090_MB00)     += arch/frv/mb93090-mb00/
 102
 103 all: Image
 104
 105 Image: vmlinux
 106         $(Q)$(MAKE) $(build)=arch/frv/boot $@
 107
 108 bootstrap:
 109         $(Q)$(MAKEBOOT) bootstrap
 110
 111 archclean:
 112         $(Q)$(MAKE) $(clean)=arch/frv/boot
 113
 114 archdep: scripts/mkdep symlinks
 115         $(Q)$(MAKE) $(build)=arch/frv/boot dep