1 #
2 # This file is subject to the terms and condit
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, Lanz
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 f
18 BOOT_HEAP_SIZE := 0x400000
19
20 # Disable Function Tracer
21 KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_FTRAC
22
23 KBUILD_CFLAGS := $(filter-out -fstack-protecto
24
25 # Disable lq/sq in zboot
26 ifdef CONFIG_CPU_LOONGSON64
27 KBUILD_CFLAGS := $(filter-out -march=loongson3
28 endif
29
30 KBUILD_CFLAGS := $(KBUILD_CFLAGS) -D__KERNEL__
31 -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) -D"
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 $(obj)/decompre
39
40 ifdef CONFIG_DEBUG_ZBOOT
41 vmlinuzobjs-$(CONFIG_DEBUG_ZBOOT)
42 vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16
43 vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART_P
44 vmlinuzobjs-$(CONFIG_MIPS_ALCHEMY)
45 vmlinuzobjs-$(CONFIG_ATH79)
46 endif
47
48 vmlinuzobjs-$(CONFIG_KERNEL_XZ) += $(obj)/ashl
49
50 vmlinuzobjs-$(CONFIG_KERNEL_ZSTD) += $(obj)/bs
51
52 targets := $(notdir $(vmlinuzobjs-y))
53
54 targets += vmlinux.bin
55
56 OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O
57
58 $(obj)/vmlinux.bin: $(KBUILD_IMAGE) FORCE
59 $(call if_changed,objcopy)
60
61 tool_$(CONFIG_KERNEL_GZIP) = gzip
62 tool_$(CONFIG_KERNEL_BZIP2) = bzip2_with_siz
63 tool_$(CONFIG_KERNEL_LZ4) = lz4_with_size
64 tool_$(CONFIG_KERNEL_LZMA) = lzma_with_size
65 tool_$(CONFIG_KERNEL_LZO) = lzo_with_size
66 tool_$(CONFIG_KERNEL_XZ) = xzkern_with_si
67 tool_$(CONFIG_KERNEL_ZSTD) = zstd22_with_si
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=$
77 --set-section-flags=.i
78
79 $(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.
80 $(call if_changed,objcopy)
81
82 HOSTCFLAGS_calc_vmlinuz_load_addr.o += $(LINUX
83
84 # Calculate the load address of the compressed
85 hostprogs := calc_vmlinuz_load_addr
86
87 ifneq (0x0,$(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_vml
95 $(obj)/vmlinux.bin $(LINKER_LO
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
105 quiet_cmd_strip = STRIP $@
106 cmd_strip = $(STRIP) -s $@
107
108 $(objtree)/vmlinuz: $(src)/ld.script $(vmlinuz
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
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) $(OB
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
146 $(call cmd,ecoff)
147
148 targets += ../vmlinuz.bin
149
150 OBJCOPYFLAGS_vmlinuz.bin := $(OBJCOPYFLAGS) -O
151
152 $(objboot)/vmlinuz.bin: $(objtree)/vmlinuz
153 $(call cmd,objcopy)
154
155 targets += ../vmlinuz.srec
156
157 OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFLAGS) -
158
159 $(objboot)/vmlinuz.srec: $(objtree)/vmlinuz
160 $(call cmd,objcopy)
161
162 targets += ../uzImage.bin
163
164 $(objboot)/uzImage.bin: $(objboot)/vmlinuz.bin
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 $(srctre
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 $@ $< \
190 -DKERNEL_NAME="\"Linux
191 -DVMLINUX_BINARY="\"$(
192 -DVMLINUX_COMPRESSION=
193 -DVMLINUX_LOAD_ADDRESS
194 -DVMLINUX_ENTRY_ADDRES
195 -DADDR_BITS=$(ADDR_BIT
196 -DADDR_CELLS=$(itb_add
197
198 $(objboot)/vmlinuz.its: $(objboot)/vmlinuz.its
199 $(call if_changed,cpp_its_S,vmlinuz.bi
200
201 targets += ../vmlinuz.itb
202
203 quiet_cmd_itb-image = ITB $@
204 cmd_itb-image = \
205 env PATH="$(objtree)/scripts/d
206 $(BASH) $(MKIMAGE) \
207 -D "-I dts -O dtb -p 500 \
208 --include $(objtree)/a
209 --warning no-unit_addr
210 -f $(2) $@
211
212 $(objboot)/vmlinuz.itb: $(objboot)/vmlinuz.its
213 $(call if_changed,itb-image,$<)
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