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1b93b3c3 WZ |
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 <wuzj@lemote.com> | |
13 | # | |
14 | ||
15 | # compressed kernel load addr: VMLINUZ_LOAD_ADDRESS > VMLINUX_LOAD_ADDRESS + VMLINUX_SIZE | |
16 | VMLINUX_SIZE := $(shell wc -c $(objtree)/$(KBUILD_IMAGE) 2>/dev/null | cut -d' ' -f1) | |
9c4a6fce AC |
17 | VMLINUX_SIZE := $(shell [ -n "$(VMLINUX_SIZE)" ] && echo -n $$(($(VMLINUX_SIZE) + (65536 - $(VMLINUX_SIZE) % 65536)))) |
18 | # VMLINUZ_LOAD_ADDRESS = concat "high32 of VMLINUX_LOAD_ADDRESS" and "(low32 of VMLINUX_LOAD_ADDRESS) + VMLINUX_SIZE" | |
19 | HIGH32 := $(shell A=$(VMLINUX_LOAD_ADDRESS); [ $${\#A} -gt 10 ] && expr substr "$(VMLINUX_LOAD_ADDRESS)" 3 $$(($${\#A} - 10))) | |
20 | LOW32 := $(shell [ -n "$(HIGH32)" ] && A=11 || A=3; expr substr "$(VMLINUX_LOAD_ADDRESS)" $${A} 8) | |
21 | VMLINUZ_LOAD_ADDRESS := 0x$(shell [ -n "$(VMLINUX_SIZE)" -a -n "$(LOW32)" ] && printf "$(HIGH32)%08x" $$(($(VMLINUX_SIZE) + 0x$(LOW32)))) | |
1b93b3c3 WZ |
22 | |
23 | # set the default size of the mallocing area for decompressing | |
24 | BOOT_HEAP_SIZE := 0x400000 | |
25 | ||
26 | # Disable Function Tracer | |
27 | KBUILD_CFLAGS := $(shell echo $(KBUILD_CFLAGS) | sed -e "s/-pg//") | |
28 | ||
29 | KBUILD_CFLAGS := $(LINUXINCLUDE) $(KBUILD_CFLAGS) -D__KERNEL__ \ | |
30 | -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) -D"VMLINUX_LOAD_ADDRESS_ULL=$(VMLINUX_LOAD_ADDRESS)ull" \ | |
31 | ||
32 | KBUILD_AFLAGS := $(LINUXINCLUDE) $(KBUILD_AFLAGS) -D__ASSEMBLY__ \ | |
33 | -DKERNEL_ENTRY=0x$(shell $(NM) $(objtree)/$(KBUILD_IMAGE) 2>/dev/null | grep " kernel_entry" | cut -f1 -d \ ) \ | |
34 | -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) | |
35 | ||
36 | obj-y := $(obj)/head.o $(obj)/decompress.o $(obj)/dbg.o | |
37 | ||
38 | obj-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o | |
39 | ||
40 | OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S | |
41 | $(obj)/vmlinux.bin: $(KBUILD_IMAGE) | |
42 | $(call if_changed,objcopy) | |
43 | ||
44 | suffix_$(CONFIG_KERNEL_GZIP) = gz | |
45 | suffix_$(CONFIG_KERNEL_BZIP2) = bz2 | |
46 | suffix_$(CONFIG_KERNEL_LZMA) = lzma | |
fe1d45e0 | 47 | suffix_$(CONFIG_KERNEL_LZO) = lzo |
1b93b3c3 WZ |
48 | tool_$(CONFIG_KERNEL_GZIP) = gzip |
49 | tool_$(CONFIG_KERNEL_BZIP2) = bzip2 | |
50 | tool_$(CONFIG_KERNEL_LZMA) = lzma | |
fe1d45e0 | 51 | tool_$(CONFIG_KERNEL_LZO) = lzo |
1b93b3c3 WZ |
52 | $(obj)/vmlinux.$(suffix_y): $(obj)/vmlinux.bin |
53 | $(call if_changed,$(tool_y)) | |
54 | ||
55 | $(obj)/piggy.o: $(obj)/vmlinux.$(suffix_y) $(obj)/dummy.o | |
56 | $(Q)$(OBJCOPY) $(OBJCOPYFLAGS) \ | |
57 | --add-section=.image=$< \ | |
58 | --set-section-flags=.image=contents,alloc,load,readonly,data \ | |
59 | $(obj)/dummy.o $@ | |
60 | ||
61 | LDFLAGS_vmlinuz := $(LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T | |
62 | vmlinuz: $(src)/ld.script $(obj-y) $(obj)/piggy.o | |
63 | $(call if_changed,ld) | |
d4d9a553 | 64 | $(Q)$(OBJCOPY) $(OBJCOPYFLAGS) $@ |
1b93b3c3 WZ |
65 | |
66 | # | |
67 | # Some DECstations need all possible sections of an ECOFF executable | |
68 | # | |
69 | ifdef CONFIG_MACH_DECSTATION | |
70 | E2EFLAGS = -a | |
71 | else | |
72 | E2EFLAGS = | |
73 | endif | |
74 | ||
75 | # elf2ecoff can only handle 32bit image | |
76 | ||
77 | ifdef CONFIG_32BIT | |
78 | VMLINUZ = vmlinuz | |
79 | else | |
80 | VMLINUZ = vmlinuz.32 | |
81 | endif | |
82 | ||
83 | vmlinuz.32: vmlinuz | |
84 | $(Q)$(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@ | |
85 | ||
86 | vmlinuz.ecoff: $(obj)/../elf2ecoff $(VMLINUZ) | |
87 | $(Q)$(obj)/../elf2ecoff $(VMLINUZ) vmlinuz.ecoff $(E2EFLAGS) | |
88 | ||
89 | $(obj)/../elf2ecoff: $(src)/../elf2ecoff.c | |
90 | $(Q)$(HOSTCC) -o $@ $^ | |
91 | ||
d4d9a553 | 92 | OBJCOPYFLAGS_vmlinuz.bin := $(OBJCOPYFLAGS) -O binary |
1b93b3c3 WZ |
93 | vmlinuz.bin: vmlinuz |
94 | $(call if_changed,objcopy) | |
95 | ||
d4d9a553 | 96 | OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFLAGS) -S -O srec |
1b93b3c3 WZ |
97 | vmlinuz.srec: vmlinuz |
98 | $(call if_changed,objcopy) | |
99 | ||
100 | clean: | |
101 | clean-files += *.o \ | |
102 | vmlinu* |