2 # This file is subject to the terms and conditions of the GNU General Public
5 # Adapted for MIPS Pete Popov, Dan Malek
7 # Copyright (C) 1994 by Linus Torvalds
8 # Adapted for PowerPC by Gary Thomas
9 # modified by Cort (cort@cs.nmt.edu)
11 # Copyright (C) 2009 Lemote Inc. & DSLab, Lanzhou University
12 # Author: Wu Zhangjin <wuzhangjin@gmail.com>
15 include $(srctree)/arch/mips/Kbuild.platforms
17 # set the default size of the mallocing area for decompressing
18 BOOT_HEAP_SIZE := 0x400000
20 # Disable Function Tracer
21 KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_FTRACE), $(KBUILD_CFLAGS))
23 KBUILD_CFLAGS := $(filter-out -fstack-protector, $(KBUILD_CFLAGS))
25 # Disable lq/sq in zboot
26 ifdef CONFIG_CPU_LOONGSON64
27 KBUILD_CFLAGS := $(filter-out -march=loongson3a, $(KBUILD_CFLAGS)) -march=mips64r2
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"
33 KBUILD_AFLAGS := $(KBUILD_AFLAGS) -D__ASSEMBLY__ \
34 -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) \
35 -DKERNEL_ENTRY=$(VMLINUX_ENTRY_ADDRESS)
37 # Prevents link failures: __sanitizer_cov_trace_pc() is not linked in.
43 # decompressor objects (linked with vmlinuz)
44 vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o $(obj)/bswapsi.o
46 ifdef CONFIG_DEBUG_ZBOOT
47 vmlinuzobjs-$(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) += $(obj)/uart-ath79.o
54 vmlinuzobjs-$(CONFIG_KERNEL_XZ) += $(obj)/ashldi3.o
56 vmlinuzobjs-$(CONFIG_KERNEL_ZSTD) += $(obj)/bswapdi.o $(obj)/ashldi3.o $(obj)/clz_ctz.o
58 targets := $(notdir $(vmlinuzobjs-y))
60 targets += vmlinux.bin
62 OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S
64 $(obj)/vmlinux.bin: $(KBUILD_IMAGE) FORCE
65 $(call if_changed,objcopy)
67 tool_$(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
75 targets += vmlinux.bin.z
77 $(obj)/vmlinux.bin.z: $(obj)/vmlinux.bin FORCE
78 $(call if_changed,$(tool_y))
80 targets += piggy.o dummy.o
82 OBJCOPYFLAGS_piggy.o := --add-section=.image=$(obj)/vmlinux.bin.z \
83 --set-section-flags=.image=contents,alloc,load,readonly,data
85 $(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.bin.z FORCE
86 $(call if_changed,objcopy)
88 HOSTCFLAGS_calc_vmlinuz_load_addr.o += $(LINUXINCLUDE)
90 # Calculate the load address of the compressed kernel image
91 hostprogs := calc_vmlinuz_load_addr
93 ifneq (0x0,$(CONFIG_ZBOOT_LOAD_ADDRESS))
94 zload-y = $(CONFIG_ZBOOT_LOAD_ADDRESS)
98 VMLINUZ_LOAD_ADDRESS := $(zload-y)
100 VMLINUZ_LOAD_ADDRESS = $(shell $(obj)/calc_vmlinuz_load_addr \
101 $(obj)/vmlinux.bin $(LINKER_LOAD_ADDRESS))
103 UIMAGE_LOADADDR = $(VMLINUZ_LOAD_ADDRESS)
105 vmlinuzobjs-y += $(obj)/piggy.o
107 targets += ../../../../vmlinuz
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 $@
114 $(objtree)/vmlinuz: $(src)/ld.script $(vmlinuzobjs-y) $(obj)/calc_vmlinuz_load_addr
118 objboot := $(objtree)/arch/mips/boot
120 $(objboot)/vmlinuz: $(objtree)/vmlinuz FORCE
123 # Some DECstations need all possible sections of an ECOFF executable
125 ifdef CONFIG_MACH_DECSTATION
129 # elf2ecoff can only handle 32bit image
130 hostprogs += ../elf2ecoff
133 VMLINUZ = $(objtree)/vmlinuz
135 VMLINUZ = $(objboot)/vmlinuz.32
138 targets += ../vmlinuz.32
140 quiet_cmd_32 = OBJCOPY $@
141 cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
143 $(objboot)/vmlinuz.32: $(objtree)/vmlinuz
146 targets += ../vmlinuz.ecoff
148 quiet_cmd_ecoff = ECOFF $@
149 cmd_ecoff = $< $(VMLINUZ) $@ $(e2eflag)
151 $(objboot)/vmlinuz.ecoff: $(objboot)/elf2ecoff $(VMLINUZ)
154 targets += ../vmlinuz.bin
156 OBJCOPYFLAGS_vmlinuz.bin := $(OBJCOPYFLAGS) -O binary
158 $(objboot)/vmlinuz.bin: $(objtree)/vmlinuz
161 targets += ../vmlinuz.srec
163 OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFLAGS) -S -O srec
165 $(objboot)/vmlinuz.srec: $(objtree)/vmlinuz
168 targets += ../uzImage.bin
170 $(objboot)/uzImage.bin: $(objboot)/vmlinuz.bin FORCE
171 $(call if_changed,uimage,none)
174 # Flattened Image Tree (.itb) image
177 ifeq ($(ADDR_BITS),32)
180 ifeq ($(ADDR_BITS),64)
184 targets += ../vmlinuz.its.S
186 quiet_cmd_its_cat = CAT $@
187 cmd_its_cat = cat $(real-prereqs) >$@
189 $(objboot)/vmlinuz.its.S: $(addprefix $(srctree)/arch/mips/$(PLATFORM)/,$(ITS_INPUTS)) FORCE
190 $(call if_changed,its_cat)
192 targets += ../vmlinuz.its
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)
204 $(objboot)/vmlinuz.its: $(objboot)/vmlinuz.its.S FORCE
205 $(call if_changed,cpp_its_S,vmlinuz.bin)
207 targets += ../vmlinuz.itb
209 quiet_cmd_itb-image = ITB $@
211 env PATH="$(objtree)/scripts/dtc:$(PATH)" \
213 -D "-I dts -O dtb -p 500 \
214 --include $(objtree)/arch/mips \
215 --warning no-unit_address_vs_reg" \
218 $(objboot)/vmlinuz.itb: $(objboot)/vmlinuz.its $(objboot)/vmlinuz.bin FORCE
219 $(call if_changed,itb-image,$<)