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 # Prevents link failures: __sanitizer_cov_trace_pc() is not linked in.
  38 KCOV_INSTRUMENT         := n
  39 GCOV_PROFILE := n
  40 UBSAN_SANITIZE := n
  41 KCSAN_SANITIZE                  := n
  42
  43 # decompressor objects (linked with vmlinuz)
  44 vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o $(obj)/bswapsi.o
  45
  46 ifdef CONFIG_DEBUG_ZBOOT
  47 vmlinuzobjs-$(CONFIG_DEBUG_ZBOOT)                  += $(obj)/dbg.o
  48 vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o
  49 vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART_PROM) += $(obj)/uart-prom.o
  50 vmlinuzobjs-$(CONFIG_MIPS_ALCHEMY)                 += $(obj)/uart-alchemy.o
  51 vmlinuzobjs-$(CONFIG_ATH79)                        += $(obj)/uart-ath79.o
  52 endif
  53
  54 vmlinuzobjs-$(CONFIG_KERNEL_XZ) += $(obj)/ashldi3.o
  55
  56 vmlinuzobjs-$(CONFIG_KERNEL_ZSTD) += $(obj)/bswapdi.o $(obj)/ashldi3.o $(obj)/clz_ctz.o
  57
  58 targets := $(notdir $(vmlinuzobjs-y))
  59
  60 targets += vmlinux.bin
  61
  62 OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S
  63
  64 $(obj)/vmlinux.bin: $(KBUILD_IMAGE) FORCE
  65         $(call if_changed,objcopy)
  66
  67 tool_$(CONFIG_KERNEL_GZIP)    = gzip
  68 tool_$(CONFIG_KERNEL_BZIP2)   = bzip2_with_size
  69 tool_$(CONFIG_KERNEL_LZ4)     = lz4_with_size
  70 tool_$(CONFIG_KERNEL_LZMA)    = lzma_with_size
  71 tool_$(CONFIG_KERNEL_LZO)     = lzo_with_size
  72 tool_$(CONFIG_KERNEL_XZ)      = xzkern_with_size
  73 tool_$(CONFIG_KERNEL_ZSTD)    = zstd22_with_size
  74
  75 targets += vmlinux.bin.z
  76
  77 $(obj)/vmlinux.bin.z: $(obj)/vmlinux.bin FORCE
  78         $(call if_changed,$(tool_y))
  79
  80 targets += piggy.o dummy.o
  81
  82 OBJCOPYFLAGS_piggy.o := --add-section=.image=$(obj)/vmlinux.bin.z \
  83                         --set-section-flags=.image=contents,alloc,load,readonly,data
  84
  85 $(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.bin.z FORCE
  86         $(call if_changed,objcopy)
  87
  88 HOSTCFLAGS_calc_vmlinuz_load_addr.o += $(LINUXINCLUDE)
  89
  90 # Calculate the load address of the compressed kernel image
  91 hostprogs := calc_vmlinuz_load_addr
  92
  93 ifneq (0x0,$(CONFIG_ZBOOT_LOAD_ADDRESS))
  94 zload-y = $(CONFIG_ZBOOT_LOAD_ADDRESS)
  95 endif
  96
  97 ifneq ($(zload-y),)
  98 VMLINUZ_LOAD_ADDRESS := $(zload-y)
  99 else
 100 VMLINUZ_LOAD_ADDRESS = $(shell $(obj)/calc_vmlinuz_load_addr \
 101                 $(obj)/vmlinux.bin $(LINKER_LOAD_ADDRESS))
 102 endif
 103 UIMAGE_LOADADDR = $(VMLINUZ_LOAD_ADDRESS)
 104
 105 vmlinuzobjs-y += $(obj)/piggy.o
 106
 107 targets += ../../../../vmlinuz
 108
 109 quiet_cmd_zld = LD      $@
 110       cmd_zld = $(LD) $(KBUILD_LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T $< $(vmlinuzobjs-y) -o $@
 111 quiet_cmd_strip = STRIP   $@
 112       cmd_strip = $(STRIP) -s $@
 113
 114 $(objtree)/vmlinuz: $(src)/ld.script $(vmlinuzobjs-y) $(obj)/calc_vmlinuz_load_addr
 115         $(call cmd,zld)
 116         $(call cmd,strip)
 117
 118 objboot := $(objtree)/arch/mips/boot
 119
 120 $(objboot)/vmlinuz: $(objtree)/vmlinuz FORCE
 121
 122 #
 123 # Some DECstations need all possible sections of an ECOFF executable
 124 #
 125 ifdef CONFIG_MACH_DECSTATION
 126   e2eflag := -a
 127 endif
 128
 129 # elf2ecoff can only handle 32bit image
 130 hostprogs += ../elf2ecoff
 131
 132 ifdef CONFIG_32BIT
 133         VMLINUZ = $(objtree)/vmlinuz
 134 else
 135         VMLINUZ = $(objboot)/vmlinuz.32
 136 endif
 137
 138 targets += ../vmlinuz.32
 139
 140 quiet_cmd_32 = OBJCOPY $@
 141       cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
 142
 143 $(objboot)/vmlinuz.32: $(objtree)/vmlinuz
 144         $(call cmd,32)
 145
 146 targets += ../vmlinuz.ecoff
 147
 148 quiet_cmd_ecoff = ECOFF   $@
 149       cmd_ecoff = $< $(VMLINUZ) $@ $(e2eflag)
 150
 151 $(objboot)/vmlinuz.ecoff: $(objboot)/elf2ecoff $(VMLINUZ)
 152         $(call cmd,ecoff)
 153
 154 targets += ../vmlinuz.bin
 155
 156 OBJCOPYFLAGS_vmlinuz.bin := $(OBJCOPYFLAGS) -O binary
 157
 158 $(objboot)/vmlinuz.bin: $(objtree)/vmlinuz
 159         $(call cmd,objcopy)
 160
 161 targets += ../vmlinuz.srec
 162
 163 OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFLAGS) -S -O srec
 164
 165 $(objboot)/vmlinuz.srec: $(objtree)/vmlinuz
 166         $(call cmd,objcopy)
 167
 168 targets += ../uzImage.bin
 169
 170 $(objboot)/uzImage.bin: $(objboot)/vmlinuz.bin FORCE
 171         $(call if_changed,uimage,none)
 172
 173 #
 174 # Flattened Image Tree (.itb) image
 175 #
 176
 177 ifeq ($(ADDR_BITS),32)
 178 itb_addr_cells = 1
 179 endif
 180 ifeq ($(ADDR_BITS),64)
 181 itb_addr_cells = 2
 182 endif
 183
 184 targets += ../vmlinuz.its.S
 185
 186 quiet_cmd_its_cat = CAT     $@
 187       cmd_its_cat = cat $(real-prereqs) >$@
 188
 189 $(objboot)/vmlinuz.its.S: $(addprefix $(srctree)/arch/mips/$(PLATFORM)/,$(ITS_INPUTS)) FORCE
 190         $(call if_changed,its_cat)
 191
 192 targets += ../vmlinuz.its
 193
 194 quiet_cmd_cpp_its_S = ITS     $@
 195       cmd_cpp_its_S = $(CPP) -P -C -o $@ $< \
 196                         -DKERNEL_NAME="\"Linux $(KERNELRELEASE)\"" \
 197                         -DVMLINUX_BINARY="\"$(2)\"" \
 198                         -DVMLINUX_COMPRESSION="\"none\"" \
 199                         -DVMLINUX_LOAD_ADDRESS=$(VMLINUZ_LOAD_ADDRESS) \
 200                         -DVMLINUX_ENTRY_ADDRESS=$(VMLINUZ_LOAD_ADDRESS) \
 201                         -DADDR_BITS=$(ADDR_BITS) \
 202                         -DADDR_CELLS=$(itb_addr_cells)
 203
 204 $(objboot)/vmlinuz.its: $(objboot)/vmlinuz.its.S FORCE
 205         $(call if_changed,cpp_its_S,vmlinuz.bin)
 206
 207 targets += ../vmlinuz.itb
 208
 209 quiet_cmd_itb-image = ITB     $@
 210       cmd_itb-image = \
 211                 env PATH="$(objtree)/scripts/dtc:$(PATH)" \
 212                 $(BASH) $(MKIMAGE) \
 213                 -D "-I dts -O dtb -p 500 \
 214                         --include $(objtree)/arch/mips \
 215                         --warning no-unit_address_vs_reg" \
 216                 -f $(2) $@
 217
 218 $(objboot)/vmlinuz.itb: $(objboot)/vmlinuz.its $(objboot)/vmlinuz.bin FORCE
 219         $(call if_changed,itb-image,$<)