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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 | |
f7a904df | 12 | # Author: Wu Zhangjin <wuzhangjin@gmail.com> |
1b93b3c3 WZ |
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) $(KBUILD_CFLAGS) -D__KERNEL__ \ | |
dac2965c | 30 | -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) -D"VMLINUX_LOAD_ADDRESS_ULL=$(VMLINUX_LOAD_ADDRESS)ull" |
1b93b3c3 WZ |
31 | |
32 | KBUILD_AFLAGS := $(LINUXINCLUDE) $(KBUILD_AFLAGS) -D__ASSEMBLY__ \ | |
dac2965c WZ |
33 | -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) \ |
34 | -DKERNEL_ENTRY=0x$(shell $(NM) $(objtree)/$(KBUILD_IMAGE) 2>/dev/null | grep " kernel_entry" | cut -f1 -d \ ) | |
1b93b3c3 | 35 | |
35eaa1e9 SR |
36 | targets := head.o decompress.o dbg.o uart-16550.o uart-alchemy.o |
37 | ||
38 | # decompressor objects (linked with vmlinuz) | |
39 | vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/dbg.o | |
1b93b3c3 | 40 | |
f86a69b1 | 41 | ifdef CONFIG_DEBUG_ZBOOT |
35eaa1e9 SR |
42 | vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o |
43 | vmlinuzobjs-$(CONFIG_MACH_ALCHEMY) += $(obj)/uart-alchemy.o | |
f86a69b1 | 44 | endif |
1b93b3c3 | 45 | |
35eaa1e9 | 46 | targets += vmlinux.bin |
1b93b3c3 | 47 | OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S |
35eaa1e9 | 48 | $(obj)/vmlinux.bin: $(KBUILD_IMAGE) FORCE |
1b93b3c3 WZ |
49 | $(call if_changed,objcopy) |
50 | ||
51 | suffix_$(CONFIG_KERNEL_GZIP) = gz | |
52 | suffix_$(CONFIG_KERNEL_BZIP2) = bz2 | |
53 | suffix_$(CONFIG_KERNEL_LZMA) = lzma | |
fe1d45e0 | 54 | suffix_$(CONFIG_KERNEL_LZO) = lzo |
1b93b3c3 WZ |
55 | tool_$(CONFIG_KERNEL_GZIP) = gzip |
56 | tool_$(CONFIG_KERNEL_BZIP2) = bzip2 | |
57 | tool_$(CONFIG_KERNEL_LZMA) = lzma | |
fe1d45e0 | 58 | tool_$(CONFIG_KERNEL_LZO) = lzo |
35eaa1e9 SR |
59 | |
60 | targets += vmlinux.gz vmlinux.bz2 vmlinux.lzma vmlinux.lzo | |
61 | $(obj)/vmlinux.$(suffix_y): $(obj)/vmlinux.bin FORCE | |
1b93b3c3 WZ |
62 | $(call if_changed,$(tool_y)) |
63 | ||
35eaa1e9 SR |
64 | targets += piggy.o |
65 | OBJCOPYFLAGS_piggy.o := --add-section=.image=$(obj)/vmlinux.$(suffix_y) \ | |
66 | --set-section-flags=.image=contents,alloc,load,readonly,data | |
67 | $(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.$(suffix_y) FORCE | |
68 | $(call if_changed,objcopy) | |
1b93b3c3 WZ |
69 | |
70 | LDFLAGS_vmlinuz := $(LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T | |
35eaa1e9 SR |
71 | vmlinuz: $(src)/ld.script $(vmlinuzobjs-y) $(obj)/piggy.o |
72 | $(call cmd,ld) | |
d4d9a553 | 73 | $(Q)$(OBJCOPY) $(OBJCOPYFLAGS) $@ |
1b93b3c3 WZ |
74 | |
75 | # | |
76 | # Some DECstations need all possible sections of an ECOFF executable | |
77 | # | |
78 | ifdef CONFIG_MACH_DECSTATION | |
35eaa1e9 | 79 | e2eflag := -a |
1b93b3c3 WZ |
80 | endif |
81 | ||
82 | # elf2ecoff can only handle 32bit image | |
35eaa1e9 | 83 | hostprogs-y := ../elf2ecoff |
1b93b3c3 WZ |
84 | |
85 | ifdef CONFIG_32BIT | |
86 | VMLINUZ = vmlinuz | |
87 | else | |
88 | VMLINUZ = vmlinuz.32 | |
89 | endif | |
90 | ||
35eaa1e9 SR |
91 | quiet_cmd_32 = OBJCOPY $@ |
92 | cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@ | |
1b93b3c3 | 93 | vmlinuz.32: vmlinuz |
35eaa1e9 | 94 | $(call cmd,32) |
1b93b3c3 | 95 | |
35eaa1e9 SR |
96 | quiet_cmd_ecoff = ECOFF $@ |
97 | cmd_ecoff = $< $(VMLINUZ) $@ $(e2eflag) | |
1b93b3c3 | 98 | vmlinuz.ecoff: $(obj)/../elf2ecoff $(VMLINUZ) |
35eaa1e9 | 99 | $(call cmd,ecoff) |
1b93b3c3 | 100 | |
d4d9a553 | 101 | OBJCOPYFLAGS_vmlinuz.bin := $(OBJCOPYFLAGS) -O binary |
1b93b3c3 | 102 | vmlinuz.bin: vmlinuz |
35eaa1e9 | 103 | $(call cmd,objcopy) |
1b93b3c3 | 104 | |
d4d9a553 | 105 | OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFLAGS) -S -O srec |
1b93b3c3 | 106 | vmlinuz.srec: vmlinuz |
35eaa1e9 | 107 | $(call cmd,objcopy) |
1b93b3c3 | 108 | |
35eaa1e9 | 109 | clean-files := $(objtree)/vmlinuz.* |