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
  42 # decompressor objects (linked with vmlinuz)
  43 vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o
  44
  45 ifdef CONFIG_DEBUG_ZBOOT
  46 vmlinuzobjs-$(CONFIG_DEBUG_ZBOOT)                  += $(obj)/dbg.o
  47 vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o
  48 vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART_PROM) += $(obj)/uart-prom.o
  49 vmlinuzobjs-$(CONFIG_MIPS_ALCHEMY)                 += $(obj)/uart-alchemy.o
  50 vmlinuzobjs-$(CONFIG_ATH79)                        += $(obj)/uart-ath79.o
  51 endif
  52
  53 extra-y += uart-ath79.c
  54 $(obj)/uart-ath79.c: $(srctree)/arch/mips/ath79/early_printk.c
  55         $(call cmd,shipped)
  56
  57 vmlinuzobjs-$(CONFIG_KERNEL_XZ) += $(obj)/ashldi3.o $(obj)/bswapsi.o
  58
  59 extra-y += ashldi3.c
  60 $(obj)/ashldi3.c: $(obj)/%.c: $(srctree)/lib/%.c FORCE
  61         $(call if_changed,shipped)
  62
  63 extra-y += bswapsi.c
  64 $(obj)/bswapsi.c: $(obj)/%.c: $(srctree)/arch/mips/lib/%.c FORCE
  65         $(call if_changed,shipped)
  66
  67 targets := $(notdir $(vmlinuzobjs-y))
  68
  69 targets += vmlinux.bin
  70
  71 OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S
  72
  73 $(obj)/vmlinux.bin: $(KBUILD_IMAGE) FORCE
  74         $(call if_changed,objcopy)
  75
  76 tool_$(CONFIG_KERNEL_GZIP)    = gzip
  77 tool_$(CONFIG_KERNEL_BZIP2)   = bzip2
  78 tool_$(CONFIG_KERNEL_LZ4)     = lz4
  79 tool_$(CONFIG_KERNEL_LZMA)    = lzma
  80 tool_$(CONFIG_KERNEL_LZO)     = lzo
  81 tool_$(CONFIG_KERNEL_XZ)      = xzkern
  82 tool_$(CONFIG_KERNEL_ZSTD)    = zstd22
  83
  84 targets += vmlinux.bin.z
  85
  86 $(obj)/vmlinux.bin.z: $(obj)/vmlinux.bin FORCE
  87         $(call if_changed,$(tool_y))
  88
  89 targets += piggy.o dummy.o
  90
  91 OBJCOPYFLAGS_piggy.o := --add-section=.image=$(obj)/vmlinux.bin.z \
  92                         --set-section-flags=.image=contents,alloc,load,readonly,data
  93
  94 $(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.bin.z FORCE
  95         $(call if_changed,objcopy)
  96
  97 HOSTCFLAGS_calc_vmlinuz_load_addr.o += $(LINUXINCLUDE)
  98
  99 # Calculate the load address of the compressed kernel image
 100 hostprogs := calc_vmlinuz_load_addr
 101
 102 ifneq ($(zload-y),)
 103 VMLINUZ_LOAD_ADDRESS := $(zload-y)
 104 else
 105 VMLINUZ_LOAD_ADDRESS = $(shell $(obj)/calc_vmlinuz_load_addr \
 106                 $(obj)/vmlinux.bin $(LINKER_LOAD_ADDRESS))
 107 endif
 108 UIMAGE_LOADADDR = $(VMLINUZ_LOAD_ADDRESS)
 109
 110 vmlinuzobjs-y += $(obj)/piggy.o
 111
 112 targets += ../../../../vmlinuz
 113
 114 quiet_cmd_zld = LD      $@
 115       cmd_zld = $(LD) $(KBUILD_LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T $< $(vmlinuzobjs-y) -o $@
 116 quiet_cmd_strip = STRIP   $@
 117       cmd_strip = $(STRIP) -s $@
 118
 119 $(objtree)/vmlinuz: $(src)/ld.script $(vmlinuzobjs-y) $(obj)/calc_vmlinuz_load_addr
 120         $(call cmd,zld)
 121         $(call cmd,strip)
 122
 123 objboot := $(objtree)/arch/mips/boot
 124
 125 $(objboot)/vmlinuz: $(objtree)/vmlinuz FORCE
 126
 127 #
 128 # Some DECstations need all possible sections of an ECOFF executable
 129 #
 130 ifdef CONFIG_MACH_DECSTATION
 131   e2eflag := -a
 132 endif
 133
 134 # elf2ecoff can only handle 32bit image
 135 hostprogs += ../elf2ecoff
 136
 137 ifdef CONFIG_32BIT
 138         VMLINUZ = $(objtree)/vmlinuz
 139 else
 140         VMLINUZ = $(objboot)/vmlinuz.32
 141 endif
 142
 143 targets += ../vmlinuz.32
 144
 145 quiet_cmd_32 = OBJCOPY $@
 146       cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
 147
 148 $(objboot)/vmlinuz.32: $(objtree)/vmlinuz
 149         $(call cmd,32)
 150
 151 targets += ../vmlinuz.ecoff
 152
 153 quiet_cmd_ecoff = ECOFF   $@
 154       cmd_ecoff = $< $(VMLINUZ) $@ $(e2eflag)
 155
 156 $(objboot)/vmlinuz.ecoff: $(objboot)/elf2ecoff $(VMLINUZ)
 157         $(call cmd,ecoff)
 158
 159 targets += ../vmlinuz.bin
 160
 161 OBJCOPYFLAGS_vmlinuz.bin := $(OBJCOPYFLAGS) -O binary
 162
 163 $(objboot)/vmlinuz.bin: $(objtree)/vmlinuz
 164         $(call cmd,objcopy)
 165
 166 targets += ../vmlinuz.srec
 167
 168 OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFLAGS) -S -O srec
 169
 170 $(objboot)/vmlinuz.srec: $(objtree)/vmlinuz
 171         $(call cmd,objcopy)
 172
 173 targets += ../uzImage.bin
 174
 175 $(objboot)/uzImage.bin: $(objboot)/vmlinuz.bin FORCE
 176         $(call if_changed,uimage,none)
 177
 178 #
 179 # Flattened Image Tree (.itb) image
 180 #
 181
 182 ifeq ($(ADDR_BITS),32)
 183 itb_addr_cells = 1
 184 endif
 185 ifeq ($(ADDR_BITS),64)
 186 itb_addr_cells = 2
 187 endif
 188
 189 targets += ../vmlinuz.its.S
 190
 191 quiet_cmd_its_cat = CAT     $@
 192       cmd_its_cat = cat $(real-prereqs) >$@
 193
 194 $(objboot)/vmlinuz.its.S: $(addprefix $(srctree)/arch/mips/$(PLATFORM)/,$(ITS_INPUTS)) FORCE
 195         $(call if_changed,its_cat)
 196
 197 targets += ../vmlinuz.its
 198
 199 quiet_cmd_cpp_its_S = ITS     $@
 200       cmd_cpp_its_S = $(CPP) -P -C -o $@ $< \
 201                         -DKERNEL_NAME="\"Linux $(KERNELRELEASE)\"" \
 202                         -DVMLINUX_BINARY="\"$(2)\"" \
 203                         -DVMLINUX_COMPRESSION="\"none\"" \
 204                         -DVMLINUX_LOAD_ADDRESS=$(VMLINUZ_LOAD_ADDRESS) \
 205                         -DVMLINUX_ENTRY_ADDRESS=$(VMLINUZ_LOAD_ADDRESS) \
 206                         -DADDR_BITS=$(ADDR_BITS) \
 207                         -DADDR_CELLS=$(itb_addr_cells)
 208
 209 $(objboot)/vmlinuz.its: $(objboot)/vmlinuz.its.S FORCE
 210         $(call if_changed,cpp_its_S,vmlinuz.bin)
 211
 212 targets += ../vmlinuz.itb
 213
 214 quiet_cmd_itb-image = ITB     $@
 215       cmd_itb-image = \
 216                 env PATH="$(objtree)/scripts/dtc:$(PATH)" \
 217                 $(BASH) $(MKIMAGE) \
 218                 -D "-I dts -O dtb -p 500 \
 219                         --include $(objtree)/arch/mips \
 220                         --warning no-unit_address_vs_reg" \
 221                 -f $(2) $@
 222
 223 $(objboot)/vmlinuz.itb: $(objboot)/vmlinuz.its $(objboot)/vmlinuz.bin FORCE
 224         $(call if_changed,itb-image,$<)