| 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 | $(call if_changed,itb-image,$<) |