blob: f861666e624a5c58e09f917952fe29e5d101a296 (
plain)
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
101
102
103
104
105
106
107
108
109
110
|
#
# Makefile for the LZMA compressed kernel loader for
# Atheros AR7XXX/AR9XXX based boards
#
# Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org>
#
# Some parts of this file was based on the OpenWrt specific lzma-loader
# for the BCM47xx and ADM5120 based boards:
# Copyright (C) 2004 Manuel Novoa III (mjn3@codepoet.org)
# Copyright (C) 2005 Mineharu Takahara <mtakahar@yahoo.com>
# Copyright (C) 2005 by Oleg I. Vdovikin <oleg@cs.msu.su>
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 2 as published
# by the Free Software Foundation.
#
LOADADDR :=
LZMA_TEXT_START := 0x80a00000
LOADER_DATA :=
BOARD :=
FLASH_OFFS :=
FLASH_MAX :=
PLATFORM :=
CC := $(CROSS_COMPILE)gcc
LD := $(CROSS_COMPILE)ld
OBJCOPY := $(CROSS_COMPILE)objcopy
OBJDUMP := $(CROSS_COMPILE)objdump
BIN_FLAGS := -O binary -R .reginfo -R .note -R .comment -R .mdebug -S
CFLAGS = -D__KERNEL__ -Wall -Wstrict-prototypes -Wno-trigraphs -Os \
-fno-strict-aliasing -fno-common -fomit-frame-pointer -G 0 \
-mno-abicalls -fno-pic -ffunction-sections -pipe -mlong-calls \
-fno-common -ffreestanding -fhonour-copts \
-mabi=32 -march=mips32r2 \
-Wa,-32 -Wa,-march=mips32r2 -Wa,-mips32r2 -Wa,--trap
CFLAGS += -D_LZMA_PROB32 -DARCH=$(PLATFORM)
ASFLAGS = $(CFLAGS) -D__ASSEMBLY__
LDFLAGS = -static --gc-sections -no-warn-mismatch
LDFLAGS += -e startup -T loader.lds -Ttext $(LZMA_TEXT_START)
O_FORMAT = $(shell $(OBJDUMP) -i | head -2 | grep elf32)
OBJECTS := head.o loader.o cache.o board-$(PLATFORM).o printf.o LzmaDecode.o
include $(PLATFORM).mk
CFLAGS+=$(CACHE_FLAGS)
ASFLAGS+=$(CACHE_FLAGS)
ifneq ($(strip $(LOADER_DATA)),)
OBJECTS += data.o
CFLAGS += -DLZMA_WRAPPER=1 -DLOADADDR=$(LOADADDR)
endif
ifneq ($(strip $(KERNEL_CMDLINE)),)
CFLAGS += -DCONFIG_KERNEL_CMDLINE='"$(KERNEL_CMDLINE)"'
endif
ifneq ($(strip $(FLASH_OFFS)),)
CFLAGS += -DCONFIG_FLASH_OFFS=$(FLASH_OFFS)
endif
ifneq ($(strip $(FLASH_MAX)),)
CFLAGS += -DCONFIG_FLASH_MAX=$(FLASH_MAX)
endif
BOARD_DEF := $(shell echo $(strip $(BOARD)) | tr a-z A-Z | tr - _)
ifneq ($(BOARD_DEF),)
CFLAGS += -DCONFIG_BOARD_$(BOARD_DEF)
endif
all: loader.elf
# Don't build dependencies, this may die if $(CC) isn't gcc
dep:
install:
%.o : %.c
$(CC) $(CFLAGS) -c -o $@ $<
%.o : %.S
$(CC) $(ASFLAGS) -c -o $@ $<
data.o: $(LOADER_DATA)
$(LD) -r -b binary --oformat $(O_FORMAT) -T lzma-data.lds -o $@ $<
loader: $(OBJECTS)
$(LD) $(LDFLAGS) -o $@ $(OBJECTS)
loader.bin: loader
$(OBJCOPY) $(BIN_FLAGS) $< $@
loader2.o: loader.bin
$(LD) -r -b binary --oformat $(O_FORMAT) -o $@ $<
loader.elf: loader2.o
$(LD) -e startup -T loader2.lds -Ttext $(LOADADDR) -o $@ $<
mrproper: clean
clean:
rm -f loader *.elf *.bin *.o
|
