blob: ad0df1b575c43553c750eb0640edbf6d439182e4 (
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
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
#####################
# #
# FoolOS Build Sys. #
# #
#####################
############ phony targets ############
.PHONY: all clean run stick new newrun
############ some constants ############
USB_STICK=/dev/sdf #take care!
#here our kernel will be loaded by the bootloader.
KERNEL_START=0x100000
#use our cross compiler
CC=i686-elf-gcc
############ flags ############
CFLAGS=-ffreestanding -nostdlib -lgcc -std=gnu11
CFLAGS+= -I.
CFLAGS+= -Wno-implicit-function-declaration
#CFLAGS+= -O0
#CFLAGS+=-fdata-sections -ffunction-sections
#CFLAGS+= -Werror
############ source and object files ############
#kernel sources (asm and c)
SOURCES=$(wildcard ./kernel/*.c)
SOURCES+=$(wildcard ./lib/*/*.c)
SOURCES+=$(wildcard ./fs/*.c)
ASMSOURCES=$(wildcard ./asm/*.asm)
#kernel object files
OBJECTS=$(patsubst %.c, %.o, $(SOURCES))
ASMOBJECTS=$(patsubst %.asm, %.o, $(ASMSOURCES))
KERNEL_ENTRY=./boot/kernel_entry.o
#master boot record asm
MBR=./boot0/mbr.bin
#stage 2 bootloader
STAGE2=./boot/stage2.bin
#multiprocessor binary entry
MP_BIN=./boot/mp.bin
#some fillup data (zeros)
FILLUP=./data/fill.bin
############ final image (default target) ############
all: FoolOS.vdi
new: clean all
newrun: clean run
############ nasm assembling rules ############
%.o: %.asm
nasm -f elf $^ -o $@
%.bin: %.asm
nasm -f bin $^ -o $@
############ linking kernel binary ############
# the kernel_entry.o needs to be FIRST!!
kernel.bin: $(KERNEL_ENTRY) $(ASMOBJECTS) $(OBJECTS)
$(CC) $(CFLAGS) -o $@ -Wl,-Ttext,$(KERNEL_START),--oformat,binary $^
#ld -o $@ -Ttext $(KERNEL_START) --oformat binary -melf_i386 $^ -O0 # --gc-sections --entry=kernel_main -v
############ fool-font ############
binfont.bin: data/binfont.src
python tools/binarize.py $< $@
############ assembling of final image ############
# master boot record, kernel binary and fool-font
FoolOS.img: $(MBR) $(STAGE2) kernel.bin $(FILLUP) FoolData.img
cp $(FILLUP) $@
dd if=$(MBR) of=$@ bs=512 seek=0 conv=notrunc
dd if=$(STAGE2) of=$@ bs=512 seek=1 conv=notrunc
dd if=kernel.bin of=$@ bs=512 seek=10 conv=notrunc #will end up at 0x100000 in ram (this is what the booloader starts loading secotr: 10)
dd if=FoolData.img of=$@ bs=512 seek=842 conv=notrunc #data starts at 0x168000
binfont.img: binfont.bin
cat $^ > $@
FoolData.img: binfont.bin $(MP_BIN) userspace/ext2.img
dd if=$(MP_BIN) of=$@ bs=512 seek=0 conv=notrunc
dd if=binfont.bin of=$@ bs=512 seek=1 conv=notrunc
dd if=userspace/ext2.img of=$@ bs=512 seek=4 conv=notrunc #will end up at 0x80800 in ram
FoolOS.vdi: FoolOS.img
VBoxManage convertfromraw FoolOS.img FoolOS.vdi --uuid 2f11ca11-c35d-4240-b77e-79e37d32616c
############ vm stuff ############
# run in our local bochs (we need cirrus support for our vesa mode)
run: all
~/opt/bochs-2.6.6/bochs -q -f bochs/bochsrc -rc bochs/bochsdebug
############ cleanup ############
clean_release:
-rm *.bin FoolData.img binfont.img bochs.log $(KERNEL_ENTRY) $(ASMOBJECTS) $(OBJECTS) $(FILLUP) $(MBR) $(MP_BIN) bochs.out ne2k-tx.log ne2k-txdump.txt $(STAGE2)
make -C userspace clean
clean: clean_release
-rm FoolOS.img FoolOS.vdi
release: new
-mv FoolOS.img release/
make clean_release
userspace/ext2.img:
make -C userspace
############ test stuff ############
stick: FoolOS.img
cat FoolOS.img > $(USB_STICK) && sync
xxd $(USB_STICK) | head -n 50
|
