Newer
Older
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
K=kernel
U=user
OBJS = \
$K/entry.o \
$K/start.o \
$K/console.o \
$K/printf.o \
$K/uart.o \
$K/kalloc.o \
$K/spinlock.o \
$K/string.o \
$K/main.o \
$K/vm.o \
$K/proc.o \
$K/swtch.o \
$K/trampoline.o \
$K/trap.o \
$K/syscall.o \
$K/sysproc.o \
$K/bio.o \
$K/fs.o \
$K/log.o \
$K/sleeplock.o \
$K/file.o \
$K/pipe.o \
$K/exec.o \
$K/sysfile.o \
$K/kernelvec.o \
$K/plic.o \
$K/virtio_disk.o \
$K/buddy.o \
$K/list.o \
$K/watchdog.o
# riscv64-unknown-elf- or riscv64-linux-gnu-
# perhaps in /opt/riscv/bin
#TOOLPREFIX =
# Try to infer the correct TOOLPREFIX if not set
ifndef TOOLPREFIX
TOOLPREFIX := $(shell if riscv64-unknown-elf-objdump -i 2>&1 | grep 'elf64-big' >/dev/null 2>&1; \
then echo 'riscv64-unknown-elf-'; \
elif riscv64-linux-gnu-objdump -i 2>&1 | grep 'elf64-big' >/dev/null 2>&1; \
then echo 'riscv64-linux-gnu-'; \
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
endif
QEMU = qemu-system-riscv64
CC = $(TOOLPREFIX)gcc
AS = $(TOOLPREFIX)gas
LD = $(TOOLPREFIX)ld
OBJCOPY = $(TOOLPREFIX)objcopy
OBJDUMP = $(TOOLPREFIX)objdump
CFLAGS = -Wall -Werror -O -fno-omit-frame-pointer -ggdb
CFLAGS += -MD
CFLAGS += -mcmodel=medany
CFLAGS += -ffreestanding -fno-common -nostdlib -mno-relax
CFLAGS += -I.
CFLAGS += $(shell $(CC) -fno-stack-protector -E -x c /dev/null >/dev/null 2>&1 && echo -fno-stack-protector)
# Disable PIE when possible (for Ubuntu 16.10 toolchain)
ifneq ($(shell $(CC) -dumpspecs 2>/dev/null | grep -e '[^f]no-pie'),)
CFLAGS += -fno-pie -no-pie
endif
ifneq ($(shell $(CC) -dumpspecs 2>/dev/null | grep -e '[^f]nopie'),)
CFLAGS += -fno-pie -nopie
endif
LDFLAGS = -z max-page-size=4096
$K/kernel: $(OBJS) $K/kernel.ld $U/initcode
$(LD) $(LDFLAGS) -T $K/kernel.ld -o $K/kernel $(OBJS)
$(OBJDUMP) -S $K/kernel > $K/kernel.asm
$(OBJDUMP) -t $K/kernel | sed '1,/SYMBOL TABLE/d; s/ .* / /; /^$$/d' > $K/kernel.sym
$U/initcode: $U/initcode.S
$(CC) $(CFLAGS) -nostdinc -I. -Ikernel -c $U/initcode.S -o $U/initcode.o
$(LD) $(LDFLAGS) -N -e start -Ttext 0 -o $U/initcode.out $U/initcode.o
$(OBJCOPY) -S -O binary $U/initcode.out $U/initcode
$(OBJDUMP) -S $U/initcode.o > $U/initcode.asm
tags: $(OBJS) _init
etags *.S *.c
ULIB = $U/ulib.o $U/usys.o $U/printf.o $U/umalloc.o
_%: %.o $(ULIB)
# $(LD) $(LDFLAGS) -N -e main -Ttext 0 -o $@ $^
$(LD) $(LDFLAGS) -Tuser/link.ld -e main -o $@ $^
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
$(OBJDUMP) -S $@ > $*.asm
$(OBJDUMP) -t $@ | sed '1,/SYMBOL TABLE/d; s/ .* / /; /^$$/d' > $*.sym
$U/usys.S : $U/usys.pl
perl $U/usys.pl > $U/usys.S
$U/usys.o : $U/usys.S
$(CC) $(CFLAGS) -c -o $U/usys.o $U/usys.S
$U/_forktest: $U/forktest.o $(ULIB)
# forktest has less library code linked in - needs to be small
# in order to be able to max out the proc table.
$(LD) $(LDFLAGS) -N -e main -Ttext 0 -o $U/_forktest $U/forktest.o $U/ulib.o $U/usys.o $U/umalloc.o $U/printf.o
$(OBJDUMP) -S $U/_forktest > $U/forktest.asm
$U/_uthread: $U/uthread.o $U/uthread_switch.o $(ULIB)
$(LD) $(LDFLAGS) -N -e main -Ttext 0 -o $U/_uthread $U/uthread.o $U/uthread_switch.o $(ULIB)
$(OBJDUMP) -S $U/_uthread > $U/uthread.asm
mkfs/mkfs: mkfs/mkfs.c $K/fs.h
gcc -Werror -Wall -I. -o mkfs/mkfs mkfs/mkfs.c
# Prevent deletion of intermediate files, e.g. cat.o, after first build, so
# that disk image changes after first build are persistent until clean. More
# details:
# http://www.gnu.org/software/make/manual/html_node/Chained-Rules.html
.PRECIOUS: %.o
UPROGS=\
$U/_cat\
$U/_echo\
$U/_forktest\
$U/_grep\
$U/_init\
$U/_kill\
$U/_ln\
$U/_ls\
$U/_mkdir\
$U/_rm\
$U/_sh\
$U/_usertests\
$U/_wc\
$U/_zombie\
$U/_call\
$U/_print\
$U/_nice\
$U/_prints\
$U/_nice-exit\
$U/_mutest\
$U/_mutest2\
$U/_rocky\
$U/_watchdog-panic\
fs.img: mkfs/mkfs README $(UPROGS)
mkfs/mkfs fs.img README $(UPROGS)
-include kernel/*.d user/*.d
clean:
rm -f *.tex *.dvi *.idx *.aux *.log *.ind *.ilg \
*/*.o */*.d */*.asm */*.sym \
$U/initcode $U/initcode.out $K/kernel fs.img \
mkfs/mkfs .gdbinit \
$U/usys.S \
$(UPROGS)
# try to generate a unique GDB port
# QEMU's gdb stub command line changed in 0.11
QEMUGDB = $(shell if $(QEMU) -help | grep -q '^-gdb'; \
then echo "-gdb tcp::$(GDBPORT)"; \
else echo "-s -p $(GDBPORT)"; fi)
ifndef CPUS
CPUS := 3
endif
QEMUEXTRA =
QEMUOPTS = -machine virt -bios none -kernel $K/kernel -m 128M -smp $(CPUS) -nographic
QEMUOPTS += -drive file=fs.img,if=none,format=raw,id=x0 -device virtio-blk-device,drive=x0,bus=virtio-mmio-bus.0
QEMUOPTS += -monitor telnet:127.0.0.1:12345,server,nowait
qemu-version:
$(QEMU) --version
qemu: $K/kernel fs.img
$(QEMU) $(QEMUOPTS)
.gdbinit: .gdbinit.tmpl-riscv
sed "s/:1234/:$(GDBPORT)/" < $^ > $@
qemu-gdb: $K/kernel .gdbinit fs.img
@echo "*** Now run 'gdb' in another window." 1>&2
$(QEMU) $(QEMUOPTS) -S $(QEMUGDB)
docker run --rm --user $(shell id -u):$(shell id -g) --name os-container -v "$(shell pwd)":/data -it pwilke/os-infosec make qemu ${MAKEFLAGS}
docker run --rm --user $(shell id -u):$(shell id -g) --name os-container -p 26000-26003:26000-26003 -v "$(shell pwd)":/data -it pwilke/os-infosec make qemu-gdb ${MAKEFLAGS}
ifndef ACT
ACT := default
endif
eval:
./run_docker.sh $(ACT)