7 our (@disks) = ("os.dsk", "fs.dsk", "scratch.dsk", "swap.dsk");
13 use Getopt::Long qw(:config require_order bundling);
14 GetOptions ("sim=s" => sub { set_sim (@_) },
15 "bochs" => sub { set_sim ("bochs") },
16 "qemu" => sub { set_sim ("qemu") },
17 "gsx" => sub { set_sim ("gsx") },
19 "debug=s" => sub { set_debug (@_) },
20 "no-debug" => sub { set_debug ("no-debug") },
21 "monitor" => sub { set_debug ("monitor") },
22 "gdb" => sub { set_debug ("gdb") },
24 "run|get|put|make-disk" => \&cmd_option,
26 "m|memory=i" => \$mem,
27 "j|jitter=i" => \$jitter,
29 "v|no-vga" => sub { set_vga ('none'); },
30 "s|no-serial" => sub { $serial_out = 0; },
31 "t|terminal" => sub { set_vga ('terminal'); },
33 "h|help" => sub { usage (0); },
35 "0|os-disk|disk-0|hda=s" => \$disks[0],
36 "1|fs-disk|disk-1|hdb=s" => \$disks[1],
37 "2|scratch-disk|disk-2|hdc=s" => \$disks[2],
38 "3|swap-disk|disk-3|hdd=s" => \$disks[3])
41 $sim = "bochs" if !defined $sim;
42 $debug = "no-debug" if !defined $debug;
43 $vga = "window" if !defined $vga;
47 die "--$new_sim conflicts with --$sim\n"
48 if defined ($sim) && $sim ne $new_sim;
54 die "--$new_debug conflicts with --$debug\n"
55 if defined ($debug) && $debug ne $new_debug;
61 if (defined ($vga) && $vga ne $new_vga) {
62 print "warning: conflicting vga display options\n";
68 # Force an end to option processing, as with --.
72 die "no command specified; use --help for help\n"
74 my ($cmd) = shift @ARGV;
77 } elsif ($cmd eq 'make-disk') {
78 usage () if @ARGV != 2;
79 my ($file, $mb) = @ARGV;
80 usage () if $mb !~ /^\d+(\.\d+)?|\.\d+$/;
81 die "$file: already exists\n" if -e $file;
83 create_disk ($file, int ($mb * 1008));
84 } elsif ($cmd eq 'put') {
85 # Take a -f option to combine formatting with putting.
87 if (@ARGV > 0 && $ARGV[0] eq '-f') {
92 usage () if @ARGV != 1 && @ARGV != 2;
93 my ($hostfn, $guestfn) = @ARGV;
94 $guestfn = $hostfn if !defined $guestfn;
96 # Create scratch disk from file.
97 die "$hostfn: $!\n" if ! -e $hostfn;
99 copy_pad ($hostfn, "scratch.dsk", 512);
102 my (@cmd) = ("-ci", $guestfn, $size, "-q");
103 unshift (@cmd, "-f") if $format;
105 } elsif ($cmd eq 'get') {
106 usage () if @ARGV != 1 && @ARGV != 2;
107 my ($guestfn, $hostfn) = @ARGV;
108 $hostfn = $guestfn if !defined $hostfn;
109 die "$hostfn: already exists\n" if -e $hostfn;
111 # Create scratch disk big enough for any file in the filesystem
112 # (modulo sparse files).
113 die "$disks[1]: $!\n" if ! -e $disks[1];
114 my ($fs_size) = -s _;
115 my ($scratch_size) = -s $disks[2];
116 $scratch_size = 0 if !defined $scratch_size;
117 create_disk ($disks[2], $fs_size / 1024 + 16)
118 if $scratch_size < $fs_size + 16384;
121 run_vm ("-co", $guestfn, "-q");
123 # Read out scratch disk.
124 print "copying $guestfn from $disks[2] to $hostfn...\n";
125 open (SRC, "<$disks[2]") or die "$disks[2]: open: $!\n";
126 open (DST, ">$hostfn") or die "$hostfn: create: $!\n";
128 read (SRC, $input, 512) == 512 or die "$disks[2]: read error\n";
129 my ($size) = unpack ("V", $input);
130 $size != 0xffffffff or die "$guestfn: too big for $disks[2]?";
132 read (SRC, $src, $size) == $size or die "$disks[2]: read error\n";
133 print DST $src or die "$hostfn: write error\n";
136 } elsif ($cmd eq 'help') {
139 die "unknown command `$cmd'; use --help for help\n";
145 $exitcode = 1 unless defined $exitcode;
146 print "pintos, a utility for invoking Pintos in a simulator\n";
147 print "Usage: pintos [OPTION...] COMMAND [ARG...]\n";
148 print "where COMMAND is one of the following:\n";
149 print " run [CMDLINE...] run a VM in the simulator\n";
150 print " make-disk FILE.DSK SIZE create FILE.DSK as empty SIZE MB disk\n";
151 print " put HOSTFN [GUESTFN] copy HOSTFN into VM (as GUESTFN)\n";
152 print " get GUESTFN [HOSTFN] copy GUESTFN out of VM (to HOSTFN)\n";
153 print " help print this help message and exit\n";
154 print "Simulator options:\n";
155 print " --bochs (default) Use Bochs as simulator\n";
156 print " --qemu Use qemu as simulator\n";
157 print " --gsx Use VMware GSX Server 3.x as simulator\n";
158 print "Debugger options:\n";
159 print " --no-debug (default) No debugger\n";
160 print " --monitor Debug with simulator's monitor\n";
161 print " --gdb Debug with gdb\n";
162 print "Display options: (default is VGA + serial)\n";
163 print " -v, --no-vga No VGA display\n";
164 print " -s, --no-serial No serial output\n";
165 print " -t, --terminal Display VGA in terminal (Bochs only)\n";
166 print "VM options:\n";
167 print " -j SEED Randomize timer interrupts (Bochs only)\n";
168 print " -m, --mem=MB Run VM with MB megabytes of physical memory\n";
169 print "Disk options:\n";
170 print " --os-disk=DISK Set OS disk file (default: os.dsk)\n";
171 print " --fs-disk=DISK Set FS disk file (default: fs.dsk)\n";
172 print " --scratch-disk=DISK Set scratch disk (default: scratch.dsk)\n";
173 print " --swap-disk=DISK Set swap disk file (default: swap.dsk)\n";
178 my ($src, $dst, $blocksize) = @_;
179 run_command ("dd", "if=$src", "of=$dst", "bs=$blocksize", "conv=sync");
183 my ($disk, $kb) = @_;
184 run_command ("dd", "if=/dev/zero", "of=$disk", "bs=1024", "count=$kb");
190 die "$disks[0]: can't find OS disk\n" if ! -e $disks[0];
192 undef $disks[$i] if ! -e $disks[$i];
195 write_cmd_line ($disks[0], @_);
197 if ($sim eq 'bochs') {
199 if ($debug eq 'no-debug') {
201 } elsif ($debug eq 'monitor') {
203 } elsif ($debug eq 'gdb') {
207 my ($bochsbin) = search_path ($bin);
208 my ($bochsshare) = "$bochsbin/../share/bochs";
210 open (BOCHSRC, ">bochsrc.txt") or die "bochsrc.txt: create: $!\n";
211 print BOCHSRC "romimage: file=$bochsshare/BIOS-bochs-latest, "
212 . "address=0xf0000\n";
213 print BOCHSRC "vgaromimage: $bochsshare/VGABIOS-lgpl-latest\n";
214 print BOCHSRC bochs_disk_line ("ata0-master", $disks[0]);
215 print BOCHSRC bochs_disk_line ("ata0-slave", $disks[1]);
216 print BOCHSRC "ata1: enabled=1, ioaddr1=0x170, ioaddr2=0x370, irq=15\n"
217 if defined ($disks[2]) || defined ($disks[3]);
218 print BOCHSRC bochs_disk_line ("ata1-master", $disks[2]);
219 print BOCHSRC bochs_disk_line ("ata1-slave", $disks[3]);
220 print BOCHSRC "boot: c\n";
221 print BOCHSRC "ips: 1000000\n";
222 print BOCHSRC "clock: sync=none, time0=0\n";
223 print BOCHSRC "megs: $mem\n";
224 print BOCHSRC "log: bochsout.txt\n";
225 if ($vga ne 'terminal') {
226 print BOCHSRC "com1: enabled=1, dev=/dev/stdout\n"
228 print BOCHSRC "display_library: nogui\n"
231 print BOCHSRC "display_library: term\n";
235 my (@cmd) = ($bin, '-q');
236 push (@cmd, '-j', $jitter) if defined $jitter;
237 print join (' ', @_), "\n";
239 } elsif ($sim eq 'qemu') {
240 print "warning: qemu doesn't support --terminal\n"
241 if $vga eq 'terminal';
242 print "warning: qemu doesn't support jitter\n"
244 my (@cmd) = ('qemu');
245 push (@cmd, '-hda', $disks[0]) if defined $disks[0];
246 push (@cmd, '-hdb', $disks[1]) if defined $disks[1];
247 push (@cmd, '-hdc', $disks[2]) if defined $disks[2];
248 push (@cmd, '-hdd', $disks[3]) if defined $disks[3];
249 push (@cmd, '-m', $mem);
250 push (@cmd, '-nographic') if $vga eq 'none';
251 push (@cmd, '-serial', 'stdio') if $serial_out && $vga ne 'none';
252 push (@cmd, '-S') if $debug eq 'monitor';
253 push (@cmd, '-s') if $debug eq 'gdb';
255 } elsif ($sim eq 'gsx') {
256 print "warning: VMware GSX Server doesn't support --$debug\n"
257 if $debug ne 'no-debug';
258 print "warning: VMware GSX Server doesn't support --no-vga\n"
260 print "warning: VMware GSX Server doesn't support --terminal\n"
261 if $vga eq 'terminal';
262 print "warning: VMware GSX Server doesn't support jitter\n"
265 open (VMX, ">pintos.vmx") or die "pintos.vmx: create: $!\n";
266 chmod 0777 & ~umask, "pintos.vmx";
267 print VMX "#! /usr/bin/vmware -G\n";
268 print VMX "config.version = 6\n";
269 print VMX "guestOS = \"linux\"\n";
270 print VMX "floppy0.present = FALSE\n";
272 if (! -e 'null.bin') {
273 open (NULL, ">null.bin") or die "null.bin: create: $!\n";
277 for (my ($i) = 0; $i < 4; $i++) {
278 my ($dsk) = $disks[$i];
279 next if !defined $dsk;
285 my ($device) = "ide" . int ($i / 2) . ":" . ($i % 2);
286 print VMX "\n$device.present = TRUE\n";
287 print VMX "$device.deviceType = \"plainDisk\"\n";
288 print VMX "$device.fileName = \"$pln\"\n";
290 my (%geom) = disk_geometry ($dsk);
291 open (PLN, ">$pln") or die "$pln: create: $!\n";
292 print PLN "DRIVETYPE ide\n";
293 print PLN "#vm|VERSION 2\n";
294 print PLN "#vm|TOOLSVERSION 2\n";
295 print PLN "CYLINDERS $geom{C}\n";
296 print PLN "HEADS $geom{H}\n";
297 print PLN "SECTORS $geom{S}\n";
298 print PLN "#vm|CAPACITY $geom{CAPACITY}\n";
299 print PLN "ACCESS \"$dsk\" 0 $geom{CAPACITY}\n";
305 my ($vmx) = getcwd () . "/pintos.vmx";
306 system ("vmware-cmd -s register $vmx >&/dev/null");
307 system ("vmware-cmd $vmx stop hard >&/dev/null");
308 system ("vmware -l -G -x -q $vmx");
309 system ("vmware-cmd $vmx stop hard >&/dev/null");
314 my ($disk, @args) = @_;
316 die "command line includes empty string" if grep (/^$/, @args);
317 my ($args) = join ("\0", @args) . "\0\0";
318 die "command line exceeds 128 bytes" if length ($args) > 128;
319 $args .= "\0" x (128 - length ($args));
321 print "writing command line to $disk...\n";
322 open (DISK, "+<$disk") or die "$disk: open: $!\n";
323 seek (DISK, 0x17e, 0) or die "$disk: seek: $!\n";
324 syswrite (DISK, $args) or die "$disk: write: $!\n";
325 close (DISK) or die "$disk: close: $!\n";
329 print join (' ', @_), "\n";
330 die "command failed\n" if system (@_);
335 for my $dir (split (':', $ENV{PATH})) {
336 return $dir if -e "$dir/$target";
338 die "$target not in PATH\n";
341 sub bochs_disk_line {
342 my ($device, $file) = @_;
343 return "" if !defined $file;
344 my (%geom) = disk_geometry ($file);
345 return "$device: type=disk, path=$file, mode=flat, "
346 . "cylinders=$geom{C}, heads=$geom{H}, spt=$geom{S}, "
347 . "translation=none\n";
352 my ($size) = -s $file;
353 die "$file: stat: $!\n" if !defined $size;
354 die "$file: size not a multiple of 512 bytes\n" if $size % 512;
355 my ($cylinders) = int ($size / (512 * 16 * 63));
356 $cylinders++ if $size % (512 * 16 * 63);
358 return (CAPACITY => $size / 512,