forked from mit-pdos/xv6-riscv
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathMakefile
247 lines (209 loc) · 6.47 KB
/
Makefile
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
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
# make Makefile a dependency in case editing board_config etc
.EXTRA_PREREQS:= $(abspath $(lastword $(MAKEFILE_LIST)))
runtime_config := sbi
#runtime_config := machine
#
# select one of the following boards for sbi config
#
#board_config := unmatched
board_config := vf2
#board_config := bpif3
K=kernel
U=user
OBJS =
ifeq ($(runtime_config), sbi)
OBJS += $K/entry_sbi.o
else
OBJS += $K/entry.o
endif
OBJS += \
$K/start.o \
$K/console.o \
$K/printf.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 \
$K/kernelvec.o \
ifeq ($(runtime_config), sbi)
OBJS += \
$K/sbi.o \
$K/ram_disk.o \
$K/sbi_uart.o
else
OBJS += \
$K/plic.o \
$K/virtio_disk.o \
$K/uart.o
endif
# 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-'; \
elif riscv64-unknown-linux-gnu-objdump -i 2>&1 | grep 'elf64-big' >/dev/null 2>&1; \
then echo 'riscv64-unknown-linux-gnu-'; \
else echo "***" 1>&2; \
echo "*** Error: Couldn't find a riscv64 version of GCC/binutils." 1>&2; \
echo "*** To turn off this error, run 'gmake TOOLPREFIX= ...'." 1>&2; \
echo "***" 1>&2; exit 1; fi)
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 -gdwarf-2
CFLAGS += -MD
CFLAGS += -mcmodel=medany
# CFLAGS += -ffreestanding -fno-common -nostdlib -mno-relax
CFLAGS += -fno-common -nostdlib
CFLAGS += -fno-builtin-strncpy -fno-builtin-strncmp -fno-builtin-strlen -fno-builtin-memset
CFLAGS += -fno-builtin-memmove -fno-builtin-memcmp -fno-builtin-log -fno-builtin-bzero
CFLAGS += -fno-builtin-strchr -fno-builtin-exit -fno-builtin-malloc -fno-builtin-putc
CFLAGS += -fno-builtin-free
CFLAGS += -fno-builtin-memcpy -Wno-main
CFLAGS += -fno-builtin-printf -fno-builtin-fprintf -fno-builtin-vprintf
CFLAGS += -I.
CFLAGS += $(shell $(CC) -fno-stack-protector -E -x c /dev/null >/dev/null 2>&1 && echo -fno-stack-protector)
ifeq ($(runtime_config), sbi)
CFLAGS += -DRUNTIME_SBI
ifeq ($(board_config), unmatched)
CFLAGS += -DBOARD_UNMATCHED
endif
ifeq ($(board_config), vf2)
CFLAGS += -DBOARD_VF2
endif
ifeq ($(board_config), bpif3)
CFLAGS += -DBOARD_BPIF3
endif
endif
# Disable PIE when possible (for Ubuntu 16.10 toolchain)
ifneq ($(shell $(CC) -dumpspecs 2>/dev/null | grep -e '[^f]no-pie'),)
CFLAGS += -fno-pie -no-pie
endif
ifneq ($(shell $(CC) -dumpspecs 2>/dev/null | grep -e '[^f]nopie'),)
CFLAGS += -fno-pie -nopie
endif
LDFLAGS = -z max-page-size=4096
ifeq ($(runtime_config), sbi)
# bpif3 does not have ddr at the same range as unmatched and vf2
ifeq ($(board_config), bpif3)
linker_ld = $K/kernel_bf3.ld
else
# for now, unmatched and vf2 share a linker ld file but should revisit
linker_ld = $K/kernel_sbi.ld
endif
else
linker_ld = $K/kernel.ld
endif
$K/kernel: $(OBJS) $(linker_ld) $U/initcode
$(LD) $(LDFLAGS) -T $(linker_ld) -o $K/kernel $(OBJS)
$(OBJDUMP) -S $K/kernel > $K/kernel.asm
$(OBJDUMP) -t $K/kernel | sed '1,/SYMBOL TABLE/d; s/ .* / /; /^$$/d' > $K/kernel.sym
$(OBJCOPY) -O binary $K/kernel $K/kernel.bin
$U/initcode: $U/initcode.S
$(CC) $(CFLAGS) -march=rv64g -nostdinc -I. -Ikernel -c $U/initcode.S -o $U/initcode.o
$(LD) $(LDFLAGS) -N -e start -Ttext 0 -o $U/initcode.out $U/initcode.o
$(OBJCOPY) -S -O binary $U/initcode.out $U/initcode
$(OBJDUMP) -S $U/initcode.o > $U/initcode.asm
tags: $(OBJS) _init
etags *.S *.c
ULIB = $U/ulib.o $U/usys.o $U/printf.o $U/umalloc.o
_%: %.o $(ULIB)
$(LD) $(LDFLAGS) -T $U/user.ld -o $@ $^
$(OBJDUMP) -S $@ > $*.asm
$(OBJDUMP) -t $@ | sed '1,/SYMBOL TABLE/d; s/ .* / /; /^$$/d' > $*.sym
# need to handle #include in entry_sbi.S file so make gcc rule to include param.h
# the standard assembly file compilation does not track include files
$K/entry_sbi.o: $K/entry_sbi.S $K/param.h
$(CC) $(CFLAGS) -c -o $K/entry_sbi.o $K/entry_sbi.S
$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
$(OBJDUMP) -S $U/_forktest > $U/forktest.asm
GCCFLAGS = -Werror -Wall
ifeq ($(runtime_config), sbi)
GCCFLAGS += -DRUNTIME_SBI
endif
mkfs/mkfs: mkfs/mkfs.c $K/fs.h $K/param.h
gcc $(GCCFLAGS) -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/_stressfs\
$U/_usertests\
$U/_usertests2\
$U/_grind\
$U/_wc\
$U/_zombie
userprogs: $(UPROGS) fs.img
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 $K/kernel.bin fs.img \
mkfs/mkfs .gdbinit \
$U/usys.S \
$(UPROGS)
# try to generate a unique GDB port
GDBPORT = $(shell expr `id -u` % 5000 + 25000)
# 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
QEMUOPTS = -machine virt -bios none -kernel $K/kernel -m 128M -smp $(CPUS) -nographic
QEMUOPTS += -global virtio-mmio.force-legacy=false
QEMUOPTS += -drive file=fs.img,if=none,format=raw,id=x0
QEMUOPTS += -device virtio-blk-device,drive=x0,bus=virtio-mmio-bus.0
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)