1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
#
# Makefile for Broadcom BCM947XX boards
#
# Copyright 2001-2003, Broadcom Corporation
# All Rights Reserved.
#
# THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
# KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
# SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
# FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
#
# $Id$
#
# Copyright 2004 Manuel Novoa III <mjn3@codepoet.org>
# Modified to support bzip'd kernels.
# Of course, it would be better to integrate bunzip capability into CFE.
#
# Link at 3 MB offset in RAM
#TEXT_START ?= 0x80300000
TEXT_START ?= 0x80001000
BZ_MEM_TOP := 0x81000000
BZ_TEXT_START := BZ_MEM_TOP-0x4000
BZ_STACK_TOP := BZ_TEXT_START-4
OBJCOPY := $(CROSS_COMPILE)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S
SRCBASE := $(TOPDIR)/../..
VPATH := $(SRCBASE)/shared
ASFLAGS += -D__ASSEMBLY__ -I$(SRCBASE)/include -DLOADADDR=$(LOADADDR)
ASFLAGS += -DBZ_MEM_TOP=$(BZ_MEM_TOP)
ASFLAGS += -DBZ_TEXT_START=$(BZ_TEXT_START)
ASFLAGS += -DBZ_STACK_TOP=$(BZ_STACK_TOP)
CFLAGS += -I$(SRCBASE)/include -DLOADADDR=$(LOADADDR)
CFLAGS += -DBZ_MEM_TOP=$(BZ_MEM_TOP)
CFLAGS += -DBZ_TEXT_START=$(BZ_TEXT_START)
CFLAGS += -DBZ_STACK_TOP=$(BZ_STACK_TOP)
ifdef CONFIG_MCOUNT
CFLAGS := $(subst -pg,,$(CFLAGS))
endif
CFLAGS += -ffunction-sections $(call check_gcc, -fvtable-gc, )
SEDFLAGS := s/BZ_TEXT_START/$(BZ_TEXT_START)/;s/BZ_MEM_TOP/$(BZ_MEM_TOP)/;s/TEXT_START/$(TEXT_START)/
SYSTEM ?= $(TOPDIR)/vmlinux
OBJECTS := head.o data.o
all: bzImage vmlinuz
# Don't build dependencies, this may die if $(CC) isn't gcc
dep:
# Create a gzipped version named vmlinuz for compatibility
vmlinuz: piggy
gzip -c9 $< > $@
# Our bzImage is a gzip'd binary that decompresses and runs
# the appended bzip'd kernel.
bzImage: bzLoaderImage.gz piggz
cat bzLoaderImage.gz piggz > $@
bzLoaderImage.gz: bzLoaderImage
gzip -nc9 $< > $@
bzLoaderImage: bzLoader
$(OBJCOPY) $< $@
bzLoader: vmlinux.lds $(OBJECTS)
$(LD) -static --gc-sections -no-warn-mismatch -T vmlinux.lds -o $@ $(OBJECTS)
vmlinux.lds: vmlinux.lds.in Makefile
@sed "$(SEDFLAGS)" < $< > $@
piggz: piggy
bzip2 -c9 $< > $@
piggy: $(SYSTEM)
$(OBJCOPY) $< $@
data.o: data.lds data.image
$(LD) -no-warn-mismatch -T data.lds -r -o $@ -b binary data.image -b elf32-tradlittlemips
data.lds:
@echo "SECTIONS { .data : { code_start = .; *(.data) code_stop = .; }}" > $@
data.image: decompress_bunzip2.image
$(OBJCOPY) $< $@
decompress_bunzip2.image: decompress_bunzip2.lds decompress_bunzip2.o
$(LD) -static --gc-sections -no-warn-mismatch -T decompress_bunzip2.lds -o $@ decompress_bunzip2.o
decompress_bunzip2.lds: decompress_bunzip2.lds.in Makefile
@sed "$(SEDFLAGS)" < $< > $@
mrproper: clean
clean:
rm -f vmlinux vmlinuz piggz piggy *.lds *.o \
bzLoader bzLoaderImage bzLoaderImage.gz bzImage \
data.lds data.image \
decompress_bunzip2.lds decompress_bunzip2.image
|
