LXR linux/arch/microblaze/Makefile

   1UTS_SYSNAME = -DUTS_SYSNAME=\"uClinux\"
   2
   3# What CPU vesion are we building for, and crack it open
   4# as major.minor.rev
   5CPU_VER=$(subst ",,$(CONFIG_XILINX_MICROBLAZE0_HW_VER) )
   6CPU_MAJOR=$(shell echo $(CPU_VER) | cut -d '.' -f 1)
   7CPU_MINOR=$(shell echo $(CPU_VER) | cut -d '.' -f 2)
   8CPU_REV=$(shell echo $(CPU_VER) | cut -d '.' -f 3)
   9
  10export CPU_VER CPU_MAJOR CPU_MINOR CPU_REV
  11
  12# Use cpu-related CONFIG_ vars to set compile options.
  13
  14# Work out HW multipler support.  This is icky.
  15# 1. Spartan2 has no HW multiplers.
  16# 2. MicroBlaze v3.x always uses them, except in Spartan 2
  17# 3. All other FPGa/CPU ver combos, we can trust the CONFIG_ settings
  18ifeq (,$(findstring spartan2,$(CONFIG_XILINX_MICROBLAZE0_FAMILY)))
  19  ifeq ($(CPU_MAJOR),3)
  20    CPUFLAGS-1 += -mno-xl-soft-mul
  21  else
  22    # USE_HW_MUL can be 0, 1, or 2, defining a heirarchy of HW Mul support.
  23    CPUFLAGS-$(subst 1,,$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL)) += -mxl-multiply-high
  24    CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL) += -mno-xl-soft-mul
  25  endif
  26endif
  27CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-div
  28CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift
  29CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR) += -mxl-pattern-compare
  30
  31CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))
  32
  33# The various CONFIG_XILINX cpu features options are integers 0/1/2...
  34# rather than bools y/n
  35
  36# r31 holds current when in kernel mode
  37CFLAGS_KERNEL += -ffixed-r31 $(CPUFLAGS-1) $(CPUFLAGS-2)
  38
  39LDFLAGS_BLOB := --format binary --oformat elf32-microblaze
  40
  41LIBGCC := $(shell $(CC) $(CFLAGS_KERNEL) -print-libgcc-file-name)
  42
  43head-y          := arch/microblaze/kernel/head.o
  44libs-y          += arch/microblaze/lib/ $(LIBGCC)
  45core-y          += arch/microblaze/kernel/ arch/microblaze/mm/ \
  46                   arch/microblaze/platform/
  47
  48boot := arch/$(ARCH)/boot
  49
  50# defines filename extension depending memory management type
  51ifeq ($(CONFIG_MMU),)
  52MMUEXT          := -nommu
  53endif
  54export  MMUEXT
  55
  56all: linux.bin
  57
  58archclean:
  59        $(Q)$(MAKE) $(clean)=$(boot)
  60
  61linux.bin linux.bin.gz: vmlinux
  62        $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
  63
  64define archhelp
  65  echo  '* linux.bin    - Create raw binary'
  66  echo  '  linux.bin.gz - Create compressed raw binary'
  67endef
  68