arch/nios2nommu/Makefile

   1 # arch/niosnommu/Makefile
   2 #
   3 # Makefile for the architecture dependent flags and dependencies on the
   4 # nios.
   5 #
   6 # Copyright (C) 2001 Vic Phillips (vic@microtronix.com)
   7 #
   8 # based on sparcnommu/Makefile:
   9 #
  10 # Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu)
  11 #
  12 KERNELLOAD = ${shell echo `grep "nasys_program_mem " include/asm/nios.h | sed 's/^.*\*)//' | sed 's/)//'`}
  13
  14 HARDWARE_MK = arch/$(ARCH)/hardware.mk
  15
  16 platform-$(CONFIG_NIOS)         := NIOS2
  17 PLATFORM := $(platform-y)
  18
  19 board-$(CONFIG_ALTERA_STRATIX)  := altera_stratix
  20 board-$(CONFIG_ALTERA_STRATIX_PRO)      := altera_stratix_pro
  21 board-$(CONFIG_ALTERA_STRATIX_II)       := altera_stratix_ii
  22 board-$(CONFIG_ALTERA_CYCLONE)  := altera_cyclone
  23 board-$(CONFIG_ALTERA_CYCLONE_1C12_EVAL)        := altera_cyclone_1c12_eval
  24 board-$(CONFIG_MICROTRONIX_STRATIX)     := microtronix_stratix
  25 board-$(CONFIG_MICROTRONIX_CYCLONE)     := microtronix_cyclone
  26 board-$(CONFIG_MICROTRONIX_UKIT)        := microtronix_ukit
  27 board-$(CONFIG_MICROTRONIX_PSK) := microtronix_psk
  28 BOARD := $(board-y)
  29
  30 model-$(CONFIG_RAMKERNEL)       := ram
  31 model-$(CONFIG_ROMKERNEL)       := rom
  32 model-$(CONFIG_HIMEMKERNEL)     := himem
  33 MODEL := $(model-y)
  34
  35 export PLATFORM BOARD MODEL
  36
  37 CFLAGS += -DNO_MM -pipe -D__linux__ -D__ELF__
  38 #CFLAGS += -DNO_MM -save-temps -D__linux__ -D__ELF__
  39
  40 # Uncomment this if you are doing gdb source level
  41 # debugging of the kernel to get the proper debugging information.
  42 #
  43 #CFLAGS +=  -DDEBUG
  44
  45 # Turn on/off various hardware multiply options
  46 cpu-cflags-$(CONFIG_NIOS2_HW_MUL_OFF) += -mno-hw-mul -mno-hw-mulx
  47 cpu-cflags-$(CONFIG_NIOS2_HW_MUL) += -mhw-mul -mno-hw-mulx
  48 cpu-cflags-$(CONFIG_NIOS2_HW_MULX) += -mhw-mul -mhw-mulx
  49 CFLAGS += $(cpu-cflags-y)
  50
  51 # mulx flags currently cause older version of nios2-elf-gcc to fail
  52 # The following line ensures that all mulx flags are removed before
  53 # it is passed to the compiler.
  54 mulx_help_text:= $(shell $(CC) --target-help | grep mulx)
  55 ifeq "$(mulx_help_text)" ""
  56 CFLAGS := $(filter-out -mhw-mulx -mno-hw-mulx, $(CFLAGS))
  57 endif
  58
  59 # Temporary workaround for nios2-elf-gcc bug
  60 # First noticed in v3.4.1 (Altera Nios II 1.1 b131)
  61 # To be removed at a later date when bug is resolved.
  62 CFLAGS += -fno-optimize-sibling-calls
  63
  64 # This undefines the "__init" type used in defining initialization
  65 # procedures.  When defined, the procedures are put into an 'init' data
  66 # section that GDB doesn't recognize as source.
  67 #
  68 CFLAGS += -DNO_TEXT_SECTIONS
  69 CFLAGS += -fno-builtin
  70 CFLAGS += -O2 -g -G 0
  71 CFLAGS += -DUTS_SYSNAME=\"uClinux\"
  72
  73 CFLAGS_GCC_INC := $(shell $(CC) -print-file-name=include)
  74 CFLAGS += -I$(CFLAGS_GCC_INC)
  75
  76 AFLAGS += -DNO_MM -g
  77 #AFLAGS += -DNO_MM -g -save-temps
  78
  79 # vic - add this to get name of nios gcc library
  80 LIBGCC_CFLAGS = $(if $(CONFIG_NIOS2_HW_MUL_OFF),-mno-hw-mul)
  81 LIBGCC  := `$(CC) --print-libgcc-file-name $(LIBGCC_CFLAGS)`
  82
  83 # add this to avoid multiple '_stack' and '_vecbase' definition errors
  84 #
  85 ifdef niosgnu
  86 # Include the path to the lib directory where the ldscripts are found to fix
  87 # a problem with the cygwin/bash environment.
  88
  89 #cygwhack: kenw - this following section could be a possible problem
  90 #                 due to the O= option on the command line.
  91 LDSCRIPTS:=$(shell nios2-elf-gcc -print-file-name=ldscripts)
  92 LDFLAGS += -mnios2elf -L $(LDSCRIPTS)/..
  93 else
  94 LDFLAGS += -mnios2elf
  95 LDLIBS := -L `$(CC) -print-file-name=m32`  -l gcc
  96 endif
  97
  98 head-y := arch/nios2nommu/kernel/head.o arch/nios2nommu/kernel/init_task.o
  99
 100 CLEAN_FILES := include/asm-$(ARCH)/asm-offsets.h \
 101                $(HARDWARE_MK) \
 102                arch/$(ARCH)/kernel/asm-offsets.s \
 103                linux.srec \
 104                linux.flash \
 105                linux.bin \
 106                linux.bin.srec
 107
 108 core-y  += arch/nios2nommu/kernel/ \
 109            arch/nios2nommu/mm/ \
 110            arch/nios2nommu/drivers/
 111
 112 libs-y  += arch/nios2nommu/lib/
 113
 114 libs-y          += $(LIBGCC)
 115 ####;dgt2;tmp;
 116
 117 # force user to configure hardware before building kernel
 118
 119 pardoned_targets = clean mrproper sgmldocs psdocs pdfdocs \
 120                    htmldocs mandocs
 121
 122 -include $(HARDWARE_MK)
 123 build_targets = $(filter-out $(pardoned_targets), $(MAKECMDGOALS))
 124 ifneq '$(strip $(build_targets))' ''
 125   ifndef SYSPTF
 126     ifneq '$(firstword $(MAKECMDGOALS))' 'hwselect'
 127       $(error Run "make hwselect SYSPTF=<system.ptf>" first)
 128     endif
 129   endif
 130 endif
 131
 132 quiet_cmd_gen_mk = '  RUNNING $@'
 133 define cmd_gen_mk
 134         mkdir -p $(dir $(objtree)/$(HARDWARE_MK)); \
 135         perl -I$(TOPDIR)/arch/$(ARCH)/scripts \
 136                 $(srctree)/arch/$(ARCH)/scripts/hwselect.pl $(SYSPTF) \
 137                 $(objtree)/$(HARDWARE_MK)
 138 endef
 139
 140 .PHONY: hwselect
 141 hwselect:
 142         @echo $($(quiet)cmd_gen_mk);
 143         @$(cmd_gen_mk)
 144
 145 prepare: include/nios2_system.h
 146
 147 archclean:
 148         $(call descend arch/$(ARCH)/boot, subdirclean)
 149
 150 define filechk_nios2_system.h
 151         # call perl script that will build nios2_system.h file
 152         perl -I$(TOPDIR)/arch/$(ARCH)/scripts \
 153           $(TOPDIR)/arch/$(ARCH)/scripts/gen_nios2_system.h.pl $(CPU) $(EXEMEM) $(UPLMEM)
 154 endef
 155
 156 include/nios2_system.h: $(SYSPTF) FORCE
 157         $(call filechk,nios2_system.h)
 158
 159 quiet_cmd_touch = '  TOUCH   $@'
 160       cmd_touch = touch $(TOPDIR)/$@
 161
 162 arch/$(ARCH)/kernel/vmlinux.lds.S: FORCE
 163         @echo $($(quiet)cmd_touch);
 164         @$(cmd_touch)
 165
 166 linuxsrec: linux
 167         $(OBJCOPY) -O srec $(LINUX) linux.srec
 168
 169 boot := arch/nios2nommu/boot
 170
 171 zImage: vmlinux
 172         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
 173
 174 compressed: zImage
 175
 176 CLEAN_FILES += include/nios2_system.h
 177
 178 archmrproper:
 179
 180 archdep:
 181