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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) | |
17 | VMLINUX_SIZE := $(shell [ -n "$(VMLINUX_SIZE)" ] && echo $$(($(VMLINUX_SIZE) + (65536 - $(VMLINUX_SIZE) % 65536)))) | |
18 | VMLINUZ_LOAD_ADDRESS := 0x$(shell [ -n "$(VMLINUX_SIZE)" ] && printf %x $$(($(VMLINUX_LOAD_ADDRESS) + $(VMLINUX_SIZE)))) | |
19 | ||
20 | # set the default size of the mallocing area for decompressing | |
21 | BOOT_HEAP_SIZE := 0x400000 | |
22 | ||
23 | # Disable Function Tracer | |
24 | KBUILD_CFLAGS := $(shell echo $(KBUILD_CFLAGS) | sed -e "s/-pg//") | |
25 | ||
26 | KBUILD_CFLAGS := $(LINUXINCLUDE) $(KBUILD_CFLAGS) -D__KERNEL__ \ | |
27 | -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) -D"VMLINUX_LOAD_ADDRESS_ULL=$(VMLINUX_LOAD_ADDRESS)ull" \ | |
28 | ||
29 | KBUILD_AFLAGS := $(LINUXINCLUDE) $(KBUILD_AFLAGS) -D__ASSEMBLY__ \ | |
30 | -DKERNEL_ENTRY=0x$(shell $(NM) $(objtree)/$(KBUILD_IMAGE) 2>/dev/null | grep " kernel_entry" | cut -f1 -d \ ) \ | |
31 | -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) | |
32 | ||
33 | obj-y := $(obj)/head.o $(obj)/decompress.o $(obj)/dbg.o | |
34 | ||
35 | obj-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o | |
36 | ||
37 | OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S | |
38 | $(obj)/vmlinux.bin: $(KBUILD_IMAGE) | |
39 | $(call if_changed,objcopy) | |
40 | ||
41 | suffix_$(CONFIG_KERNEL_GZIP) = gz | |
42 | suffix_$(CONFIG_KERNEL_BZIP2) = bz2 | |
43 | suffix_$(CONFIG_KERNEL_LZMA) = lzma | |
44 | tool_$(CONFIG_KERNEL_GZIP) = gzip | |
45 | tool_$(CONFIG_KERNEL_BZIP2) = bzip2 | |
46 | tool_$(CONFIG_KERNEL_LZMA) = lzma | |
47 | $(obj)/vmlinux.$(suffix_y): $(obj)/vmlinux.bin | |
48 | $(call if_changed,$(tool_y)) | |
49 | ||
50 | $(obj)/piggy.o: $(obj)/vmlinux.$(suffix_y) $(obj)/dummy.o | |
51 | $(Q)$(OBJCOPY) $(OBJCOPYFLAGS) \ | |
52 | --add-section=.image=$< \ | |
53 | --set-section-flags=.image=contents,alloc,load,readonly,data \ | |
54 | $(obj)/dummy.o $@ | |
55 | ||
56 | LDFLAGS_vmlinuz := $(LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T | |
57 | vmlinuz: $(src)/ld.script $(obj-y) $(obj)/piggy.o | |
58 | $(call if_changed,ld) | |
d4d9a553 | 59 | $(Q)$(OBJCOPY) $(OBJCOPYFLAGS) $@ |
1b93b3c3 WZ |
60 | |
61 | # | |
62 | # Some DECstations need all possible sections of an ECOFF executable | |
63 | # | |
64 | ifdef CONFIG_MACH_DECSTATION | |
65 | E2EFLAGS = -a | |
66 | else | |
67 | E2EFLAGS = | |
68 | endif | |
69 | ||
70 | # elf2ecoff can only handle 32bit image | |
71 | ||
72 | ifdef CONFIG_32BIT | |
73 | VMLINUZ = vmlinuz | |
74 | else | |
75 | VMLINUZ = vmlinuz.32 | |
76 | endif | |
77 | ||
78 | vmlinuz.32: vmlinuz | |
79 | $(Q)$(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@ | |
80 | ||
81 | vmlinuz.ecoff: $(obj)/../elf2ecoff $(VMLINUZ) | |
82 | $(Q)$(obj)/../elf2ecoff $(VMLINUZ) vmlinuz.ecoff $(E2EFLAGS) | |
83 | ||
84 | $(obj)/../elf2ecoff: $(src)/../elf2ecoff.c | |
85 | $(Q)$(HOSTCC) -o $@ $^ | |
86 | ||
d4d9a553 | 87 | OBJCOPYFLAGS_vmlinuz.bin := $(OBJCOPYFLAGS) -O binary |
1b93b3c3 WZ |
88 | vmlinuz.bin: vmlinuz |
89 | $(call if_changed,objcopy) | |
90 | ||
d4d9a553 | 91 | OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFLAGS) -S -O srec |
1b93b3c3 WZ |
92 | vmlinuz.srec: vmlinuz |
93 | $(call if_changed,objcopy) | |
94 | ||
95 | clean: | |
96 | clean-files += *.o \ | |
97 | vmlinu* |