6 my ($arg) = shift (@ARGV);
7 if ($arg =~ /--(bochs|qemu|gsx)$/) {
8 die "$arg conflicts with --$sim\n" if defined $sim;
10 } elsif ($arg =~ /--(no-debug|monitor|gdb)$/) {
11 die "$debug conflicts with --$debug" if defined $debug;
13 } elsif ($arg eq 'run') {
16 } elsif ($arg =~ /^mem(?:ory)?=(\d+)/) {
18 } elsif ($arg eq '-j') {
19 die "-j need random seed argument\n" if !@ARGV;
20 die "-j need integer argument\n" if $ARGV[0] !~ /^-?\d+$/;
21 $jitter = shift (@ARGV);
22 } elsif ($arg =~ /--jitter=(-?\d+)$/) {
24 } elsif ($arg eq '--no-vga' || $arg eq '-nv') {
25 print "warning: --no-vga conflicts with --terminal\n"
26 if $vga eq 'terminal';
28 } elsif ($arg eq '--no-serial' || $arg eq '-ns') {
30 } elsif ($arg eq '--terminal' || $arg eq '-t') {
31 print "warning: --terminal conflicts with --no-vga\n"
34 } elsif ($arg eq 'make-disk') {
35 my ($force) = @ARGV > 0 && $ARGV[0] eq '--force';
36 shift @ARGV if $force;
37 usage () if @ARGV != 2;
38 my ($file, $mb) = @ARGV;
39 usage () if $mb !~ /^\d+$/;
40 die "$file: already exists\n" if -e $file;
42 if ($mb != .5 && $mb != 1 && $mb != 1.5 && $mb != 2) {
43 print "$file: recommended sizes are .5, 1, 1.5, or 2 MB\n";
44 die "use --force to override\n" if !$force;
47 create_disk ($file, $mb * 1008);
49 } elsif ($arg eq 'put') {
50 usage () if @ARGV != 1 && @ARGV != 2;
51 my ($hostfn, $guestfn) = @ARGV;
52 $guestfn = $hostfn if !defined $guestfn;
54 # Create scratch disk from file.
55 die "$hostfn: $!\n" if ! -e $hostfn;
57 copy_pad ($hostfn, "scratch.dsk", 512);
60 run_vm ("-ci", $guestfn, $size, "-q");
62 } elsif ($arg eq 'get') {
63 usage () if @ARGV != 1 && @ARGV != 2;
64 my ($guestfn, $hostfn) = @ARGV;
65 $hostfn = $guestfn if !defined $hostfn;
66 die "$hostfn: already exists\n" if -e $file;
68 # Create scratch disk big enough for any file in the filesystem
69 # (modulo sparse files).
70 die "fs.dsk: $!\n" if ! -e "fs.dsk";
72 my ($scratch_size) = -s "scratch.dsk";
73 $scratch_size = 0 if !defined $scratch_size;
74 create_disk ("scratch.dsk", $fs_size / 1024 + 16)
75 if $scratch_size < $fs_size + 16384;
78 run_vm ("-co", $guestfn, "-q");
80 # Read out scratch disk.
81 print "copying $guestfn from scratch.dsk to $hostfn...\n";
82 open (SRC, "<scratch.dsk") or die "scratch.dsk: open: $!\n";
83 open (DST, ">$hostfn") or die "$hostfn: create: $!\n";
85 read (SRC, $input, 512) == 512 or die "scratch.dsk: read error\n";
86 my ($size) = unpack ("%V", $input);
87 $size != 0xffffffff or die "$guestfn: too big for scratch.dsk?";
88 read (SRC, $src, $size) == $size or die "scratch.dsk: read error\n";
89 print DST $src or die "$hostfn: write error\n";
94 } elsif ($arg eq 'help' || $arg eq '--help') {
97 die "unknown option `$arg'\n";
104 $exitcode = 1 unless defined $exitcode;
105 print "pintos, a utility for invoking Pintos in a simulator\n";
106 print "Usage: pintos [OPTION...] COMMAND [ARG...]\n";
107 print "where COMMAND is one of the following:\n";
108 print " run [CMDLINE...] run a VM in the simulator\n";
109 print " make-disk FILE.DSK SIZE create FILE.DSK as empty SIZE MB disk\n";
110 print " put HOSTFN [GUESTFN] copy HOSTFN into VM (as GUESTFN)\n";
111 print " get GUESTFN [HOSTFN] copy GUESTFN out of VM (to HOSTFN)\n";
112 print " help print this help message and exit\n";
113 print "Simulator options:\n";
114 print " --bochs (default) Use Bochs as simulator\n";
115 print " --qemu Use qemu as simulator\n";
116 print " --gsx Use VMware GSX Server 3.x as simulator\n";
117 print "Debugger options:\n";
118 print " --no-debug (default) No debugger\n";
119 print " --monitor Debug with simulator's monitor\n";
120 print " --gdb Debug with gdb\n";
121 print "Display options: (default is VGA + serial)\n";
122 print " -nv, --no-vga No VGA display\n";
123 print " -ns, --no-serial No serial output\n";
124 print " -t, --terminal Display VGA in terminal (Bochs only)\n";
125 print "VM options:\n";
126 print " -j SEED Randomize timer interrupts (Bochs only)\n";
127 print " --mem=MB Run VM with MB megabytes of physical memory\n";
132 my ($src, $dst, $blocksize) = @_;
133 run_command ("dd", "if=$src", "of=$dst", "bs=$blocksize", "conv=sync");
137 my ($disk, $kb) = @_;
138 run_command ("dd", "if=/dev/zero", "of=$disk", "bs=1024", "count=$kb");
142 my (@disks) = (undef, undef, undef, undef);
144 $sim = "bochs" if !defined $sim;
145 $debug = "no-debug" if !defined $debug;
146 $vga = "window" if !defined $vga;
148 $disks[0] = "os.dsk";
149 $disks[1] = "fs.dsk" if -e "fs.dsk";
150 $disks[2] = "scratch.dsk" if -e "scratch.dsk";
151 $disks[3] = "swap.dsk" if -e "swap.dsk";
153 die "$disks[0]: can't find OS disk\n" if ! -e $disks[0];
154 write_cmd_line ($disks[0], @_);
156 if ($sim eq 'bochs') {
157 if ($debug eq 'no-debug') {
159 } elsif ($debug eq 'monitor') {
161 } elsif ($debug eq 'gdb') {
164 $bochsbin = search_path ($bin);
165 $bochsshare = "$bochsbin/../share/bochs";
166 $romimage = "$bochsshare/BIOS-bochs-latest";
167 $vgaromimage = "$bochsshare/VGABIOS-lgpl-latest";
169 open (BOCHSRC, ">bochsrc.txt") or die "bochsrc.txt: create: $!\n";
170 print BOCHSRC "romimage: file=$romimage, address=0xf0000\n";
171 print BOCHSRC "vgaromimage: $vgaromimage\n";
172 print BOCHSRC bochs_disk_line ("ata0-master", $disks[0]);
173 print BOCHSRC bochs_disk_line ("ata0-slave", $disks[1]);
174 print BOCHSRC "ata1: enabled=1, ioaddr1=0x170, ioaddr2=0x370, irq=15\n"
175 if defined ($disks[2]) || defined ($disks[3]);
176 print BOCHSRC bochs_disk_line ("ata1-master", $disks[2]);
177 print BOCHSRC bochs_disk_line ("ata1-slave", $disks[3]);
178 print BOCHSRC "boot: c\n";
179 print BOCHSRC "ips: 1000000\n";
180 print BOCHSRC "clock: sync=none, time0=0\n";
181 print BOCHSRC "megs: $mem\n";
182 print BOCHSRC "log: bochsout.txt\n";
183 if ($vga ne 'terminal') {
184 print BOCHSRC "com1: enabled=1, dev=/dev/stdout\n"
186 print BOCHSRC "display_library: nogui\n"
189 print BOCHSRC "display_library: term\n";
193 push (@cmd, '-j', $jitter) if defined $jitter;
194 run_command_no_die (@cmd);
195 } elsif ($sim eq 'qemu') {
196 print "warning: qemu doesn't support --terminal\n"
197 if $vga eq 'terminal';
198 print "warning: qemu doesn't support jitter\n"
200 my (@cmd) = ('qemu');
201 push (@cmd, '-hda', $disks[0]) if defined $disks[0];
202 push (@cmd, '-hdb', $disks[1]) if defined $disks[1];
203 push (@cmd, '-hdc', $disks[2]) if defined $disks[2];
204 push (@cmd, '-hdd', $disks[3]) if defined $disks[3];
205 push (@cmd, '-m', $mem);
206 push (@cmd, '-nographic') if $vga eq 'none';
207 push (@cmd, '-serial', 'stdio') if $serial_out && $vga ne 'none';
208 push (@cmd, '-S') if $debug eq 'monitor';
209 push (@cmd, '-s') if $debug eq 'gdb';
211 } elsif ($sim eq 'gsx') {
212 print "warning: VMware GSX Server doesn't support --$debug\n"
213 if $debug ne 'no-debug';
214 print "warning: VMware GSX Server doesn't support --no-vga\n"
216 print "warning: VMware GSX Server doesn't support --terminal\n"
217 if $vga eq 'terminal';
218 print "warning: VMware GSX Server doesn't support jitter\n"
221 open (VMX, ">pintos.vmx") or die "pintos.vmx: create: $!\n";
222 chmod 0777 & ~umask, "pintos.vmx";
223 print VMX "#! /usr/bin/vmware -G\n";
224 print VMX "config.version = 6\n";
225 print VMX "guestOS = \"linux\"\n";
226 print VMX "floppy0.present = FALSE\n";
228 if (! -e 'null.bin') {
229 open (NULL, ">null.bin") or die "null.bin: create: $!\n";
233 for (my ($i) = 0; $i < 4; $i++) {
234 my ($dsk) = $disks[$i];
235 next if !defined $dsk;
236 $device = "ide" . int ($i / 2) . ":" . ($i % 2);
242 print VMX "\n$device.present = TRUE\n";
243 print VMX "$device.deviceType = \"plainDisk\"\n";
244 print VMX "$device.fileName = \"$pln\"\n";
246 my (%geom) = disk_geometry ($dsk);
247 open (PLN, ">$pln") or die "$pln: create: $!\n";
248 print PLN "DRIVETYPE ide\n";
249 print PLN "#vm|VERSION 2\n";
250 print PLN "#vm|TOOLSVERSION 2\n";
251 print PLN "CYLINDERS $geom{C}\n";
252 print PLN "HEADS $geom{H}\n";
253 print PLN "SECTORS $geom{S}\n";
254 print PLN "#vm|CAPACITY $geom{CAPACITY}\n";
255 print PLN "ACCESS \"$dsk\" 0 $geom{CAPACITY}\n";
261 $vmx = getcwd () . "/pintos.vmx";
262 system ("vmware-cmd -s register $vmx >&/dev/null");
263 system ("vmware-cmd $vmx stop hard >&/dev/null");
264 system ("vmware -l -G -x -q $vmx");
265 system ("vmware-cmd $vmx stop hard >&/dev/null");
270 my ($disk, @args) = @_;
272 die "command line includes empty string" if grep (/^$/, @args);
273 $args = join ("\0", @args) . "\0\0";
274 die "command line exceeds 128 bytes" if length ($args) > 128;
275 $args .= "\0" x (128 - length ($args));
277 print "writing command line to $disk...\n";
278 open (DISK, "+<$disk") or die "$disk: open: $!\n";
279 seek (DISK, 0x17e, 0) or die "$disk: seek: $!\n";
280 syswrite (DISK, $args) or die "$disk: write: $!\n";
281 close (DISK) or die "$disk: close: $!\n";
285 print join (' ', @_), "\n";
286 die "command failed\n" if system (@_);
289 sub run_command_no_die {
290 print join (' ', @_), "\n";
296 for $dir (split (':', $ENV{PATH})) {
297 return $dir if -e "$dir/$target";
299 die "$target not in PATH\n";
302 sub bochs_disk_line {
303 my ($device, $file) = @_;
304 return "" if !defined $file;
305 my (%geom) = disk_geometry ($file);
306 return "$device: type=disk, path=$file, mode=flat, "
307 . "cylinders=$geom{C}, heads=$geom{H}, spt=$geom{S}, "
308 . "translation=none\n";
313 my ($size) = -s $file;
314 die "$file: stat: $!\n" if !defined $size;
315 die "$file: size not a multiple of 512 bytes\n" if $size % 512;
316 $cylinders = int ($size / (512 * 16 * 63));
317 $cylinders++ if $size % (512 * 16 * 63);
319 return (CAPACITY => $size / 512,