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.
42 # decompressor objects (linked with vmlinuz)
43 vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o $(obj)/bswapsi.o
45 ifdef CONFIG_DEBUG_ZBOOT
46 vmlinuzobjs-$(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) += $(obj)/uart-ath79.o
53 vmlinuzobjs-$(CONFIG_KERNEL_XZ) += $(obj)/ashldi3.o
55 vmlinuzobjs-$(CONFIG_KERNEL_ZSTD) += $(obj)/bswapdi.o $(obj)/ashldi3.o $(obj)/clz_ctz.o
57 targets := $(notdir $(vmlinuzobjs-y))
59 targets += vmlinux.bin
61 OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S
63 $(obj)/vmlinux.bin: $(KBUILD_IMAGE) FORCE
64 $(call if_changed,objcopy)
66 tool_$(CONFIG_KERNEL_GZIP) = gzip
67 tool_$(CONFIG_KERNEL_BZIP2) = bzip2_with_size
68 tool_$(CONFIG_KERNEL_LZ4) = lz4_with_size
69 tool_$(CONFIG_KERNEL_LZMA) = lzma_with_size
70 tool_$(CONFIG_KERNEL_LZO) = lzo_with_size
71 tool_$(CONFIG_KERNEL_XZ) = xzkern_with_size
72 tool_$(CONFIG_KERNEL_ZSTD) = zstd22_with_size
74 targets += vmlinux.bin.z
76 $(obj)/vmlinux.bin.z: $(obj)/vmlinux.bin FORCE
77 $(call if_changed,$(tool_y))
79 targets += piggy.o dummy.o
81 OBJCOPYFLAGS_piggy.o := --add-section=.image=$(obj)/vmlinux.bin.z \
82 --set-section-flags=.image=contents,alloc,load,readonly,data
84 $(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.bin.z FORCE
85 $(call if_changed,objcopy)
87 HOSTCFLAGS_calc_vmlinuz_load_addr.o += $(LINUXINCLUDE)
89 # Calculate the load address of the compressed kernel image
90 hostprogs := calc_vmlinuz_load_addr
92 ifneq (0x0,$(CONFIG_ZBOOT_LOAD_ADDRESS))
93 zload-y = $(CONFIG_ZBOOT_LOAD_ADDRESS)
97 VMLINUZ_LOAD_ADDRESS := $(zload-y)
99 VMLINUZ_LOAD_ADDRESS = $(shell $(obj)/calc_vmlinuz_load_addr \
100 $(obj)/vmlinux.bin $(LINKER_LOAD_ADDRESS))
102 UIMAGE_LOADADDR = $(VMLINUZ_LOAD_ADDRESS)
104 vmlinuzobjs-y += $(obj)/piggy.o
106 targets += ../../../../vmlinuz
108 quiet_cmd_zld = LD $@
109 cmd_zld = $(LD) $(KBUILD_LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T $< $(vmlinuzobjs-y) -o $@
110 quiet_cmd_strip = STRIP $@
111 cmd_strip = $(STRIP) -s $@
113 $(objtree)/vmlinuz: $(src)/ld.script $(vmlinuzobjs-y) $(obj)/calc_vmlinuz_load_addr
117 objboot := $(objtree)/arch/mips/boot
119 $(objboot)/vmlinuz: $(objtree)/vmlinuz FORCE
122 # Some DECstations need all possible sections of an ECOFF executable
124 ifdef CONFIG_MACH_DECSTATION
128 # elf2ecoff can only handle 32bit image
129 hostprogs += ../elf2ecoff
132 VMLINUZ = $(objtree)/vmlinuz
134 VMLINUZ = $(objboot)/vmlinuz.32
137 targets += ../vmlinuz.32
139 quiet_cmd_32 = OBJCOPY $@
140 cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
142 $(objboot)/vmlinuz.32: $(objtree)/vmlinuz
145 targets += ../vmlinuz.ecoff
147 quiet_cmd_ecoff = ECOFF $@
148 cmd_ecoff = $< $(VMLINUZ) $@ $(e2eflag)
150 $(objboot)/vmlinuz.ecoff: $(objboot)/elf2ecoff $(VMLINUZ)
153 targets += ../vmlinuz.bin
155 OBJCOPYFLAGS_vmlinuz.bin := $(OBJCOPYFLAGS) -O binary
157 $(objboot)/vmlinuz.bin: $(objtree)/vmlinuz
160 targets += ../vmlinuz.srec
162 OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFLAGS) -S -O srec
164 $(objboot)/vmlinuz.srec: $(objtree)/vmlinuz
167 targets += ../uzImage.bin
169 $(objboot)/uzImage.bin: $(objboot)/vmlinuz.bin FORCE
170 $(call if_changed,uimage,none)
173 # Flattened Image Tree (.itb) image
176 ifeq ($(ADDR_BITS),32)
179 ifeq ($(ADDR_BITS),64)
183 targets += ../vmlinuz.its.S
185 quiet_cmd_its_cat = CAT $@
186 cmd_its_cat = cat $(real-prereqs) >$@
188 $(objboot)/vmlinuz.its.S: $(addprefix $(srctree)/arch/mips/$(PLATFORM)/,$(ITS_INPUTS)) FORCE
189 $(call if_changed,its_cat)
191 targets += ../vmlinuz.its
193 quiet_cmd_cpp_its_S = ITS $@
194 cmd_cpp_its_S = $(CPP) -P -C -o $@ $< \
195 -DKERNEL_NAME="\"Linux $(KERNELRELEASE)\"" \
196 -DVMLINUX_BINARY="\"$(2)\"" \
197 -DVMLINUX_COMPRESSION="\"none\"" \
198 -DVMLINUX_LOAD_ADDRESS=$(VMLINUZ_LOAD_ADDRESS) \
199 -DVMLINUX_ENTRY_ADDRESS=$(VMLINUZ_LOAD_ADDRESS) \
200 -DADDR_BITS=$(ADDR_BITS) \
201 -DADDR_CELLS=$(itb_addr_cells)
203 $(objboot)/vmlinuz.its: $(objboot)/vmlinuz.its.S FORCE
204 $(call if_changed,cpp_its_S,vmlinuz.bin)
206 targets += ../vmlinuz.itb
208 quiet_cmd_itb-image = ITB $@
210 env PATH="$(objtree)/scripts/dtc:$(PATH)" \
212 -D "-I dts -O dtb -p 500 \
213 --include $(objtree)/arch/mips \
214 --warning no-unit_address_vs_reg" \
217 $(objboot)/vmlinuz.itb: $(objboot)/vmlinuz.its $(objboot)/vmlinuz.bin FORCE
218 $(call if_changed,itb-image,$<)