LXR linux/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
  15include $(srctree)/arch/mips/Kbuild.platforms
  16
  17# set the default size of the mallocing area for decompressing
  18BOOT_HEAP_SIZE := 0x400000
  19
  20# Disable Function Tracer
  21KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_FTRACE), $(KBUILD_CFLAGS))
  22
  23KBUILD_CFLAGS := $(filter-out -fstack-protector, $(KBUILD_CFLAGS))
  24
  25# Disable lq/sq in zboot
  26ifdef CONFIG_CPU_LOONGSON64
  27KBUILD_CFLAGS := $(filter-out -march=loongson3a, $(KBUILD_CFLAGS)) -march=mips64r2
  28endif
  29
  30KBUILD_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
  33KBUILD_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.
  38KCOV_INSTRUMENT         := n
  39GCOV_PROFILE := n
  40UBSAN_SANITIZE := n
  41
  42# decompressor objects (linked with vmlinuz)
  43vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o $(obj)/bswapsi.o
  44
  45ifdef CONFIG_DEBUG_ZBOOT
  46vmlinuzobjs-$(CONFIG_DEBUG_ZBOOT)                  += $(obj)/dbg.o
  47vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o
  48vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART_PROM) += $(obj)/uart-prom.o
  49vmlinuzobjs-$(CONFIG_MIPS_ALCHEMY)                 += $(obj)/uart-alchemy.o
  50vmlinuzobjs-$(CONFIG_ATH79)                        += $(obj)/uart-ath79.o
  51endif
  52
  53extra-y += uart-ath79.c
  54$(obj)/uart-ath79.c: $(srctree)/arch/mips/ath79/early_printk.c
  55        $(call cmd,shipped)
  56
  57vmlinuzobjs-$(CONFIG_KERNEL_XZ) += $(obj)/ashldi3.o
  58
  59extra-y += ashldi3.c
  60$(obj)/ashldi3.c: $(obj)/%.c: $(srctree)/lib/%.c FORCE
  61        $(call if_changed,shipped)
  62
  63extra-y += bswapsi.c
  64$(obj)/bswapsi.c: $(obj)/%.c: $(srctree)/arch/mips/lib/%.c FORCE
  65        $(call if_changed,shipped)
  66
  67targets := $(notdir $(vmlinuzobjs-y))
  68
  69targets += vmlinux.bin
  70
  71OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S
  72
  73$(obj)/vmlinux.bin: $(KBUILD_IMAGE) FORCE
  74        $(call if_changed,objcopy)
  75
  76tool_$(CONFIG_KERNEL_GZIP)    = gzip
  77tool_$(CONFIG_KERNEL_BZIP2)   = bzip2
  78tool_$(CONFIG_KERNEL_LZ4)     = lz4
  79tool_$(CONFIG_KERNEL_LZMA)    = lzma
  80tool_$(CONFIG_KERNEL_LZO)     = lzo
  81tool_$(CONFIG_KERNEL_XZ)      = xzkern
  82tool_$(CONFIG_KERNEL_ZSTD)    = zstd22
  83
  84targets += vmlinux.bin.z
  85
  86$(obj)/vmlinux.bin.z: $(obj)/vmlinux.bin FORCE
  87        $(call if_changed,$(tool_y))
  88
  89targets += piggy.o dummy.o
  90
  91OBJCOPYFLAGS_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
  97HOSTCFLAGS_calc_vmlinuz_load_addr.o += $(LINUXINCLUDE)
  98
  99# Calculate the load address of the compressed kernel image
 100hostprogs := calc_vmlinuz_load_addr
 101
 102ifneq ($(zload-y),)
 103VMLINUZ_LOAD_ADDRESS := $(zload-y)
 104else
 105VMLINUZ_LOAD_ADDRESS = $(shell $(obj)/calc_vmlinuz_load_addr \
 106                $(obj)/vmlinux.bin $(LINKER_LOAD_ADDRESS))
 107endif
 108UIMAGE_LOADADDR = $(VMLINUZ_LOAD_ADDRESS)
 109
 110vmlinuzobjs-y += $(obj)/piggy.o
 111
 112targets += ../../../../vmlinuz
 113
 114quiet_cmd_zld = LD      $@
 115      cmd_zld = $(LD) $(KBUILD_LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T $< $(vmlinuzobjs-y) -o $@
 116quiet_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
 123objboot := $(objtree)/arch/mips/boot
 124
 125$(objboot)/vmlinuz: $(objtree)/vmlinuz FORCE
 126
 127#
 128# Some DECstations need all possible sections of an ECOFF executable
 129#
 130ifdef CONFIG_MACH_DECSTATION
 131  e2eflag := -a
 132endif
 133
 134# elf2ecoff can only handle 32bit image
 135hostprogs += ../elf2ecoff
 136
 137ifdef CONFIG_32BIT
 138        VMLINUZ = $(objtree)/vmlinuz
 139else
 140        VMLINUZ = $(objboot)/vmlinuz.32
 141endif
 142
 143targets += ../vmlinuz.32
 144
 145quiet_cmd_32 = OBJCOPY $@
 146      cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
 147
 148$(objboot)/vmlinuz.32: $(objtree)/vmlinuz
 149        $(call cmd,32)
 150
 151targets += ../vmlinuz.ecoff
 152
 153quiet_cmd_ecoff = ECOFF   $@
 154      cmd_ecoff = $< $(VMLINUZ) $@ $(e2eflag)
 155
 156$(objboot)/vmlinuz.ecoff: $(objboot)/elf2ecoff $(VMLINUZ)
 157        $(call cmd,ecoff)
 158
 159targets += ../vmlinuz.bin
 160
 161OBJCOPYFLAGS_vmlinuz.bin := $(OBJCOPYFLAGS) -O binary
 162
 163$(objboot)/vmlinuz.bin: $(objtree)/vmlinuz
 164        $(call cmd,objcopy)
 165
 166targets += ../vmlinuz.srec
 167
 168OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFLAGS) -S -O srec
 169
 170$(objboot)/vmlinuz.srec: $(objtree)/vmlinuz
 171        $(call cmd,objcopy)
 172
 173targets += ../uzImage.bin
 174
 175$(objboot)/uzImage.bin: $(objboot)/vmlinuz.bin FORCE
 176        $(call if_changed,uimage,none)
 177
 178#
 179# Flattened Image Tree (.itb) image
 180#
 181
 182ifeq ($(ADDR_BITS),32)
 183itb_addr_cells = 1
 184endif
 185ifeq ($(ADDR_BITS),64)
 186itb_addr_cells = 2
 187endif
 188
 189targets += ../vmlinuz.its.S
 190
 191quiet_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
 197targets += ../vmlinuz.its
 198
 199quiet_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
 212targets += ../vmlinuz.itb
 213
 214quiet_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        $(call if_changed,itb-image,$<)
 225