arch/mips/boot/compressed/Makefile

   1 #
   2 # This file is subject to the terms and conditions of the GNU General Public
   3 # License.
   4 #
   5 # Adapted for MIPS Pete Popov, Dan Malek
   6 #
   7 # Copyright (C) 1994 by Linus Torvalds
   8 # Adapted for PowerPC by Gary Thomas
   9 # modified by Cort (cort@cs.nmt.edu)
  10 #
  11 # Copyright (C) 2009 Lemote Inc. & DSLab, Lanzhou University
  12 # Author: Wu Zhangjin <wuzhangjin@gmail.com>
  13 #
  14
  15 # set the default size of the mallocing area for decompressing
  16 BOOT_HEAP_SIZE := 0x400000
  17
  18 # Disable Function Tracer
  19 KBUILD_CFLAGS := $(shell echo $(KBUILD_CFLAGS) | sed -e "s/-pg//")
  20
  21 KBUILD_CFLAGS := $(LINUXINCLUDE) $(KBUILD_CFLAGS) -D__KERNEL__ \
  22         -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) -D"VMLINUX_LOAD_ADDRESS_ULL=$(VMLINUX_LOAD_ADDRESS)ull"
  23
  24 KBUILD_AFLAGS := $(LINUXINCLUDE) $(KBUILD_AFLAGS) -D__ASSEMBLY__ \
  25         -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) \
  26         -DKERNEL_ENTRY=0x$(shell $(NM) $(objtree)/$(KBUILD_IMAGE) 2>/dev/null | grep " kernel_entry" | cut -f1 -d \ )
  27
  28 targets := head.o decompress.o dbg.o uart-16550.o uart-alchemy.o
  29
  30 # decompressor objects (linked with vmlinuz)
  31 vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/dbg.o
  32
  33 ifdef CONFIG_DEBUG_ZBOOT
  34 vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o
  35 vmlinuzobjs-$(CONFIG_MIPS_ALCHEMY)                 += $(obj)/uart-alchemy.o
  36 endif
  37
  38 targets += vmlinux.bin
  39 OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S
  40 $(obj)/vmlinux.bin: $(KBUILD_IMAGE) FORCE
  41         $(call if_changed,objcopy)
  42
  43 tool_$(CONFIG_KERNEL_GZIP)    = gzip
  44 tool_$(CONFIG_KERNEL_BZIP2)   = bzip2
  45 tool_$(CONFIG_KERNEL_LZMA)    = lzma
  46 tool_$(CONFIG_KERNEL_LZO)     = lzo
  47
  48 targets += vmlinux.bin.z
  49 $(obj)/vmlinux.bin.z: $(obj)/vmlinux.bin FORCE
  50         $(call if_changed,$(tool_y))
  51
  52 targets += piggy.o
  53 OBJCOPYFLAGS_piggy.o := --add-section=.image=$(obj)/vmlinux.bin.z \
  54                         --set-section-flags=.image=contents,alloc,load,readonly,data
  55 $(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.bin.z FORCE
  56         $(call if_changed,objcopy)
  57
  58 # Calculate the load address of the compressed kernel image
  59 hostprogs-y := calc_vmlinuz_load_addr
  60
  61 VMLINUZ_LOAD_ADDRESS = $(shell $(obj)/calc_vmlinuz_load_addr \
  62                 $(objtree)/$(KBUILD_IMAGE) $(VMLINUX_LOAD_ADDRESS))
  63
  64 vmlinuzobjs-y += $(obj)/piggy.o
  65
  66 quiet_cmd_zld = LD      $@
  67       cmd_zld = $(LD) $(LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T $< $(vmlinuzobjs-y) -o $@
  68 vmlinuz: $(src)/ld.script $(vmlinuzobjs-y) $(obj)/calc_vmlinuz_load_addr
  69         $(call cmd,zld)
  70
  71 #
  72 # Some DECstations need all possible sections of an ECOFF executable
  73 #
  74 ifdef CONFIG_MACH_DECSTATION
  75   e2eflag := -a
  76 endif
  77
  78 # elf2ecoff can only handle 32bit image
  79 hostprogs-y += ../elf2ecoff
  80
  81 ifdef CONFIG_32BIT
  82         VMLINUZ = vmlinuz
  83 else
  84         VMLINUZ = vmlinuz.32
  85 endif
  86
  87 quiet_cmd_32 = OBJCOPY $@
  88       cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
  89 vmlinuz.32: vmlinuz
  90         $(call cmd,32)
  91
  92 quiet_cmd_ecoff = ECOFF   $@
  93       cmd_ecoff = $< $(VMLINUZ) $@ $(e2eflag)
  94 vmlinuz.ecoff: $(obj)/../elf2ecoff $(VMLINUZ)
  95         $(call cmd,ecoff)
  96
  97 OBJCOPYFLAGS_vmlinuz.bin := $(OBJCOPYFLAGS) -O binary
  98 vmlinuz.bin: vmlinuz
  99         $(call cmd,objcopy)
 100
 101 OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFLAGS) -S -O srec
 102 vmlinuz.srec: vmlinuz
 103         $(call cmd,objcopy)
 104
 105 clean-files := $(objtree)/vmlinuz.*