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