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 include $(srctree)/arch/mips/Kbuild.platforms
  16
  17 # set the default size of the mallocing area for decompressing
  18 BOOT_HEAP_SIZE := 0x400000
  19
  20 # Disable Function Tracer
  21 KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_FTRACE), $(KBUILD_CFLAGS))
  22
  23 KBUILD_CFLAGS := $(filter-out -fstack-protector, $(KBUILD_CFLAGS))
  24
  25 # Disable lq/sq in zboot
  26 ifdef CONFIG_CPU_LOONGSON64
  27 KBUILD_CFLAGS := $(filter-out -march=loongson3a, $(KBUILD_CFLAGS)) -march=mips64r2
  28 endif
  29
  30 KBUILD_CFLAGS := $(KBUILD_CFLAGS) -D__KERNEL__ -D__DISABLE_EXPORTS \
  31         -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) -D"VMLINUX_LOAD_ADDRESS_ULL=$(VMLINUX_LOAD_ADDRESS)ull"
  32
  33 KBUILD_AFLAGS := $(KBUILD_AFLAGS) -D__ASSEMBLY__ \
  34         -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) \
  35         -DKERNEL_ENTRY=$(VMLINUX_ENTRY_ADDRESS)
  36
  37 # decompressor objects (linked with vmlinuz)
  38 vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o $(obj)/bswapsi.o
  39
  40 ifdef CONFIG_DEBUG_ZBOOT
  41 vmlinuzobjs-$(CONFIG_DEBUG_ZBOOT)                  += $(obj)/dbg.o
  42 vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o
  43 vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART_PROM) += $(obj)/uart-prom.o
  44 vmlinuzobjs-$(CONFIG_MIPS_ALCHEMY)                 += $(obj)/uart-alchemy.o
  45 vmlinuzobjs-$(CONFIG_ATH79)                        += $(obj)/uart-ath79.o
  46 endif
  47
  48 vmlinuzobjs-$(CONFIG_KERNEL_XZ) += $(obj)/ashldi3.o
  49
  50 vmlinuzobjs-$(CONFIG_KERNEL_ZSTD) += $(obj)/bswapdi.o $(obj)/ashldi3.o $(obj)/clz_ctz.o
  51
  52 targets := $(notdir $(vmlinuzobjs-y))
  53
  54 targets += vmlinux.bin
  55
  56 OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S
  57
  58 $(obj)/vmlinux.bin: $(KBUILD_IMAGE) FORCE
  59         $(call if_changed,objcopy)
  60
  61 tool_$(CONFIG_KERNEL_GZIP)    = gzip
  62 tool_$(CONFIG_KERNEL_BZIP2)   = bzip2_with_size
  63 tool_$(CONFIG_KERNEL_LZ4)     = lz4_with_size
  64 tool_$(CONFIG_KERNEL_LZMA)    = lzma_with_size
  65 tool_$(CONFIG_KERNEL_LZO)     = lzo_with_size
  66 tool_$(CONFIG_KERNEL_XZ)      = xzkern_with_size
  67 tool_$(CONFIG_KERNEL_ZSTD)    = zstd22_with_size
  68
  69 targets += vmlinux.bin.z
  70
  71 $(obj)/vmlinux.bin.z: $(obj)/vmlinux.bin FORCE
  72         $(call if_changed,$(tool_y))
  73
  74 targets += piggy.o dummy.o
  75
  76 OBJCOPYFLAGS_piggy.o := --add-section=.image=$(obj)/vmlinux.bin.z \
  77                         --set-section-flags=.image=contents,alloc,load,readonly,data
  78
  79 $(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.bin.z FORCE
  80         $(call if_changed,objcopy)
  81
  82 HOSTCFLAGS_calc_vmlinuz_load_addr.o += $(LINUXINCLUDE)
  83
  84 # Calculate the load address of the compressed kernel image
  85 hostprogs := calc_vmlinuz_load_addr
  86
  87 ifneq (0x0,$(CONFIG_ZBOOT_LOAD_ADDRESS))
  88 zload-y = $(CONFIG_ZBOOT_LOAD_ADDRESS)
  89 endif
  90
  91 ifneq ($(zload-y),)
  92 VMLINUZ_LOAD_ADDRESS := $(zload-y)
  93 else
  94 VMLINUZ_LOAD_ADDRESS = $(shell $(obj)/calc_vmlinuz_load_addr \
  95                 $(obj)/vmlinux.bin $(LINKER_LOAD_ADDRESS))
  96 endif
  97 UIMAGE_LOADADDR = $(VMLINUZ_LOAD_ADDRESS)
  98
  99 vmlinuzobjs-y += $(obj)/piggy.o
 100
 101 targets += ../../../../vmlinuz
 102
 103 quiet_cmd_zld = LD      $@
 104       cmd_zld = $(LD) $(KBUILD_LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T $< $(vmlinuzobjs-y) -o $@
 105 quiet_cmd_strip = STRIP   $@
 106       cmd_strip = $(STRIP) -s $@
 107
 108 $(objtree)/vmlinuz: $(src)/ld.script $(vmlinuzobjs-y) $(obj)/calc_vmlinuz_load_addr
 109         $(call cmd,zld)
 110         $(call cmd,strip)
 111
 112 objboot := $(objtree)/arch/mips/boot
 113
 114 $(objboot)/vmlinuz: $(objtree)/vmlinuz FORCE
 115
 116 #
 117 # Some DECstations need all possible sections of an ECOFF executable
 118 #
 119 ifdef CONFIG_MACH_DECSTATION
 120   e2eflag := -a
 121 endif
 122
 123 # elf2ecoff can only handle 32bit image
 124 hostprogs += ../elf2ecoff
 125
 126 ifdef CONFIG_32BIT
 127         VMLINUZ = $(objtree)/vmlinuz
 128 else
 129         VMLINUZ = $(objboot)/vmlinuz.32
 130 endif
 131
 132 targets += ../vmlinuz.32
 133
 134 quiet_cmd_32 = OBJCOPY $@
 135       cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
 136
 137 $(objboot)/vmlinuz.32: $(objtree)/vmlinuz
 138         $(call cmd,32)
 139
 140 targets += ../vmlinuz.ecoff
 141
 142 quiet_cmd_ecoff = ECOFF   $@
 143       cmd_ecoff = $< $(VMLINUZ) $@ $(e2eflag)
 144
 145 $(objboot)/vmlinuz.ecoff: $(objboot)/elf2ecoff $(VMLINUZ)
 146         $(call cmd,ecoff)
 147
 148 targets += ../vmlinuz.bin
 149
 150 OBJCOPYFLAGS_vmlinuz.bin := $(OBJCOPYFLAGS) -O binary
 151
 152 $(objboot)/vmlinuz.bin: $(objtree)/vmlinuz
 153         $(call cmd,objcopy)
 154
 155 targets += ../vmlinuz.srec
 156
 157 OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFLAGS) -S -O srec
 158
 159 $(objboot)/vmlinuz.srec: $(objtree)/vmlinuz
 160         $(call cmd,objcopy)
 161
 162 targets += ../uzImage.bin
 163
 164 $(objboot)/uzImage.bin: $(objboot)/vmlinuz.bin FORCE
 165         $(call if_changed,uimage,none)
 166
 167 #
 168 # Flattened Image Tree (.itb) image
 169 #
 170
 171 ifeq ($(ADDR_BITS),32)
 172 itb_addr_cells = 1
 173 endif
 174 ifeq ($(ADDR_BITS),64)
 175 itb_addr_cells = 2
 176 endif
 177
 178 targets += ../vmlinuz.its.S
 179
 180 quiet_cmd_its_cat = CAT     $@
 181       cmd_its_cat = cat $(real-prereqs) >$@
 182
 183 $(objboot)/vmlinuz.its.S: $(addprefix $(srctree)/arch/mips/$(PLATFORM)/,$(ITS_INPUTS)) FORCE
 184         $(call if_changed,its_cat)
 185
 186 targets += ../vmlinuz.its
 187
 188 quiet_cmd_cpp_its_S = ITS     $@
 189       cmd_cpp_its_S = $(CPP) -P -C -o $@ $< \
 190                         -DKERNEL_NAME="\"Linux $(KERNELRELEASE)\"" \
 191                         -DVMLINUX_BINARY="\"$(2)\"" \
 192                         -DVMLINUX_COMPRESSION="\"none\"" \
 193                         -DVMLINUX_LOAD_ADDRESS=$(VMLINUZ_LOAD_ADDRESS) \
 194                         -DVMLINUX_ENTRY_ADDRESS=$(VMLINUZ_LOAD_ADDRESS) \
 195                         -DADDR_BITS=$(ADDR_BITS) \
 196                         -DADDR_CELLS=$(itb_addr_cells)
 197
 198 $(objboot)/vmlinuz.its: $(objboot)/vmlinuz.its.S FORCE
 199         $(call if_changed,cpp_its_S,vmlinuz.bin)
 200
 201 targets += ../vmlinuz.itb
 202
 203 quiet_cmd_itb-image = ITB     $@
 204       cmd_itb-image = \
 205                 env PATH="$(objtree)/scripts/dtc:$(PATH)" \
 206                 $(BASH) $(MKIMAGE) \
 207                 -D "-I dts -O dtb -p 500 \
 208                         --include $(objtree)/arch/mips \
 209                         --warning no-unit_address_vs_reg" \
 210                 -f $(2) $@
 211
 212 $(objboot)/vmlinuz.itb: $(objboot)/vmlinuz.its $(objboot)/vmlinuz.bin FORCE
 213         $(call if_changed,itb-image,$<)