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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 -pg, $(KBUILD_CFLAGS))
22
23KBUILD_CFLAGS := $(filter-out -fstack-protector, $(KBUILD_CFLAGS))
24
25KBUILD_CFLAGS := $(KBUILD_CFLAGS) -D__KERNEL__ \
26 -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) -D"VMLINUX_LOAD_ADDRESS_ULL=$(VMLINUX_LOAD_ADDRESS)ull"
27
28KBUILD_AFLAGS := $(KBUILD_AFLAGS) -D__ASSEMBLY__ \
29 -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) \
30 -DKERNEL_ENTRY=$(VMLINUX_ENTRY_ADDRESS)
31
32# decompressor objects (linked with vmlinuz)
33vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o
34
35ifdef CONFIG_DEBUG_ZBOOT
36vmlinuzobjs-$(CONFIG_DEBUG_ZBOOT) += $(obj)/dbg.o
37vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o
38vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART_PROM) += $(obj)/uart-prom.o
39vmlinuzobjs-$(CONFIG_MIPS_ALCHEMY) += $(obj)/uart-alchemy.o
40vmlinuzobjs-$(CONFIG_ATH79) += $(obj)/uart-ath79.o
41endif
42
43extra-y += uart-ath79.c
44$(obj)/uart-ath79.c: $(srctree)/arch/mips/ath79/early_printk.c
45 $(call cmd,shipped)
46
47vmlinuzobjs-$(CONFIG_KERNEL_XZ) += $(obj)/ashldi3.o $(obj)/bswapsi.o
48
49extra-y += ashldi3.c bswapsi.c
50$(obj)/ashldi3.o $(obj)/bswapsi.o: KBUILD_CFLAGS += -I$(srctree)/arch/mips/lib
51$(obj)/ashldi3.c $(obj)/bswapsi.c: $(obj)/%.c: $(srctree)/arch/mips/lib/%.c
52 $(call cmd,shipped)
53
54targets := $(notdir $(vmlinuzobjs-y))
55
56targets += vmlinux.bin
57OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S
58$(obj)/vmlinux.bin: $(KBUILD_IMAGE) FORCE
59 $(call if_changed,objcopy)
60
61tool_$(CONFIG_KERNEL_GZIP) = gzip
62tool_$(CONFIG_KERNEL_BZIP2) = bzip2
63tool_$(CONFIG_KERNEL_LZ4) = lz4
64tool_$(CONFIG_KERNEL_LZMA) = lzma
65tool_$(CONFIG_KERNEL_LZO) = lzo
66tool_$(CONFIG_KERNEL_XZ) = xzkern
67
68targets += vmlinux.bin.z
69$(obj)/vmlinux.bin.z: $(obj)/vmlinux.bin FORCE
70 $(call if_changed,$(tool_y))
71
72targets += piggy.o dummy.o
73OBJCOPYFLAGS_piggy.o := --add-section=.image=$(obj)/vmlinux.bin.z \
74 --set-section-flags=.image=contents,alloc,load,readonly,data
75$(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.bin.z FORCE
76 $(call if_changed,objcopy)
77
78# Calculate the load address of the compressed kernel image
79hostprogs-y := calc_vmlinuz_load_addr
80
81ifneq ($(zload-y),)
82VMLINUZ_LOAD_ADDRESS := $(zload-y)
83else
84VMLINUZ_LOAD_ADDRESS = $(shell $(obj)/calc_vmlinuz_load_addr \
85 $(obj)/vmlinux.bin $(VMLINUX_LOAD_ADDRESS))
86endif
87UIMAGE_LOADADDR = $(VMLINUZ_LOAD_ADDRESS)
88
89vmlinuzobjs-y += $(obj)/piggy.o
90
91quiet_cmd_zld = LD $@
92 cmd_zld = $(LD) $(LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T $< $(vmlinuzobjs-y) -o $@
93quiet_cmd_strip = STRIP $@
94 cmd_strip = $(STRIP) -s $@
95vmlinuz: $(src)/ld.script $(vmlinuzobjs-y) $(obj)/calc_vmlinuz_load_addr
96 $(call cmd,zld)
97 $(call cmd,strip)
98
99#
100# Some DECstations need all possible sections of an ECOFF executable
101#
102ifdef CONFIG_MACH_DECSTATION
103 e2eflag := -a
104endif
105
106# elf2ecoff can only handle 32bit image
107hostprogs-y += ../elf2ecoff
108
109ifdef CONFIG_32BIT
110 VMLINUZ = vmlinuz
111else
112 VMLINUZ = vmlinuz.32
113endif
114
115quiet_cmd_32 = OBJCOPY $@
116 cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
117vmlinuz.32: vmlinuz
118 $(call cmd,32)
119
120quiet_cmd_ecoff = ECOFF $@
121 cmd_ecoff = $< $(VMLINUZ) $@ $(e2eflag)
122vmlinuz.ecoff: $(obj)/../elf2ecoff $(VMLINUZ)
123 $(call cmd,ecoff)
124
125OBJCOPYFLAGS_vmlinuz.bin := $(OBJCOPYFLAGS) -O binary
126vmlinuz.bin: vmlinuz
127 $(call cmd,objcopy)
128
129OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFLAGS) -S -O srec
130vmlinuz.srec: vmlinuz
131 $(call cmd,objcopy)
132
133uzImage.bin: vmlinuz.bin FORCE
134 $(call if_changed,uimage,none)
135
136clean-files += $(objtree)/vmlinuz
137clean-files += $(objtree)/vmlinuz.32
138clean-files += $(objtree)/vmlinuz.ecoff
139clean-files += $(objtree)/vmlinuz.bin
140clean-files += $(objtree)/vmlinuz.srec
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
41KCSAN_SANITIZE := n
42
43# decompressor objects (linked with vmlinuz)
44vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o $(obj)/bswapsi.o
45
46ifdef CONFIG_DEBUG_ZBOOT
47vmlinuzobjs-$(CONFIG_DEBUG_ZBOOT) += $(obj)/dbg.o
48vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o
49vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART_PROM) += $(obj)/uart-prom.o
50vmlinuzobjs-$(CONFIG_MIPS_ALCHEMY) += $(obj)/uart-alchemy.o
51vmlinuzobjs-$(CONFIG_ATH79) += $(obj)/uart-ath79.o
52endif
53
54vmlinuzobjs-$(CONFIG_KERNEL_XZ) += $(obj)/ashldi3.o
55
56vmlinuzobjs-$(CONFIG_KERNEL_ZSTD) += $(obj)/bswapdi.o $(obj)/ashldi3.o $(obj)/clz_ctz.o
57
58targets := $(notdir $(vmlinuzobjs-y))
59
60targets += vmlinux.bin
61
62OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S
63
64$(obj)/vmlinux.bin: $(KBUILD_IMAGE) FORCE
65 $(call if_changed,objcopy)
66
67tool_$(CONFIG_KERNEL_GZIP) = gzip
68tool_$(CONFIG_KERNEL_BZIP2) = bzip2_with_size
69tool_$(CONFIG_KERNEL_LZ4) = lz4_with_size
70tool_$(CONFIG_KERNEL_LZMA) = lzma_with_size
71tool_$(CONFIG_KERNEL_LZO) = lzo_with_size
72tool_$(CONFIG_KERNEL_XZ) = xzkern_with_size
73tool_$(CONFIG_KERNEL_ZSTD) = zstd22_with_size
74
75targets += vmlinux.bin.z
76
77$(obj)/vmlinux.bin.z: $(obj)/vmlinux.bin FORCE
78 $(call if_changed,$(tool_y))
79
80targets += piggy.o dummy.o
81
82OBJCOPYFLAGS_piggy.o := --add-section=.image=$(obj)/vmlinux.bin.z \
83 --set-section-flags=.image=contents,alloc,load,readonly,data
84
85$(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.bin.z FORCE
86 $(call if_changed,objcopy)
87
88HOSTCFLAGS_calc_vmlinuz_load_addr.o += $(LINUXINCLUDE)
89
90# Calculate the load address of the compressed kernel image
91hostprogs := calc_vmlinuz_load_addr
92
93ifneq (0x0,$(CONFIG_ZBOOT_LOAD_ADDRESS))
94zload-y = $(CONFIG_ZBOOT_LOAD_ADDRESS)
95endif
96
97ifneq ($(zload-y),)
98VMLINUZ_LOAD_ADDRESS := $(zload-y)
99else
100VMLINUZ_LOAD_ADDRESS = $(shell $(obj)/calc_vmlinuz_load_addr \
101 $(obj)/vmlinux.bin $(LINKER_LOAD_ADDRESS))
102endif
103UIMAGE_LOADADDR = $(VMLINUZ_LOAD_ADDRESS)
104
105vmlinuzobjs-y += $(obj)/piggy.o
106
107targets += ../../../../vmlinuz
108
109quiet_cmd_zld = LD $@
110 cmd_zld = $(LD) $(KBUILD_LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T $< $(vmlinuzobjs-y) -o $@
111quiet_cmd_strip = STRIP $@
112 cmd_strip = $(STRIP) -s $@
113
114$(objtree)/vmlinuz: $(src)/ld.script $(vmlinuzobjs-y) $(obj)/calc_vmlinuz_load_addr
115 $(call cmd,zld)
116 $(call cmd,strip)
117
118objboot := $(objtree)/arch/mips/boot
119
120$(objboot)/vmlinuz: $(objtree)/vmlinuz FORCE
121
122#
123# Some DECstations need all possible sections of an ECOFF executable
124#
125ifdef CONFIG_MACH_DECSTATION
126 e2eflag := -a
127endif
128
129# elf2ecoff can only handle 32bit image
130hostprogs += ../elf2ecoff
131
132ifdef CONFIG_32BIT
133 VMLINUZ = $(objtree)/vmlinuz
134else
135 VMLINUZ = $(objboot)/vmlinuz.32
136endif
137
138targets += ../vmlinuz.32
139
140quiet_cmd_32 = OBJCOPY $@
141 cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
142
143$(objboot)/vmlinuz.32: $(objtree)/vmlinuz
144 $(call cmd,32)
145
146targets += ../vmlinuz.ecoff
147
148quiet_cmd_ecoff = ECOFF $@
149 cmd_ecoff = $< $(VMLINUZ) $@ $(e2eflag)
150
151$(objboot)/vmlinuz.ecoff: $(objboot)/elf2ecoff $(VMLINUZ)
152 $(call cmd,ecoff)
153
154targets += ../vmlinuz.bin
155
156OBJCOPYFLAGS_vmlinuz.bin := $(OBJCOPYFLAGS) -O binary
157
158$(objboot)/vmlinuz.bin: $(objtree)/vmlinuz
159 $(call cmd,objcopy)
160
161targets += ../vmlinuz.srec
162
163OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFLAGS) -S -O srec
164
165$(objboot)/vmlinuz.srec: $(objtree)/vmlinuz
166 $(call cmd,objcopy)
167
168targets += ../uzImage.bin
169
170$(objboot)/uzImage.bin: $(objboot)/vmlinuz.bin FORCE
171 $(call if_changed,uimage,none)
172
173#
174# Flattened Image Tree (.itb) image
175#
176
177ifeq ($(ADDR_BITS),32)
178itb_addr_cells = 1
179endif
180ifeq ($(ADDR_BITS),64)
181itb_addr_cells = 2
182endif
183
184targets += ../vmlinuz.its.S
185
186quiet_cmd_its_cat = CAT $@
187 cmd_its_cat = cat $(real-prereqs) >$@
188
189$(objboot)/vmlinuz.its.S: $(addprefix $(srctree)/arch/mips/$(PLATFORM)/,$(ITS_INPUTS)) FORCE
190 $(call if_changed,its_cat)
191
192targets += ../vmlinuz.its
193
194quiet_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)
203
204$(objboot)/vmlinuz.its: $(objboot)/vmlinuz.its.S FORCE
205 $(call if_changed,cpp_its_S,vmlinuz.bin)
206
207targets += ../vmlinuz.itb
208
209quiet_cmd_itb-image = ITB $@
210 cmd_itb-image = \
211 env PATH="$(objtree)/scripts/dtc:$(PATH)" \
212 $(BASH) $(MKIMAGE) \
213 -D "-I dts -O dtb -p 500 \
214 --include $(objtree)/arch/mips \
215 --warning no-unit_address_vs_reg" \
216 -f $(2) $@
217
218$(objboot)/vmlinuz.itb: $(objboot)/vmlinuz.its $(objboot)/vmlinuz.bin FORCE
219 $(call if_changed,itb-image,$<)