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 '-m') {
19 die "-m needs integer argument\n" if !@ARGV || $ARGV[0] !~ /^-?\d+$/;
21 } elsif ($arg eq '-j') {
22 die "-j need random seed argument\n" if !@ARGV;
23 die "-j need integer argument\n" if $ARGV[0] !~ /^-?\d+$/;
24 $jitter = shift (@ARGV);
25 } elsif ($arg =~ /--jitter=(-?\d+)$/) {
27 } elsif ($arg eq '--no-vga' || $arg eq '-v') {
28 print "warning: --no-vga conflicts with --terminal\n"
29 if $vga eq 'terminal';
31 } elsif ($arg eq '--no-serial' || $arg eq '-s') {
33 } elsif ($arg eq '--terminal' || $arg eq '-t') {
34 print "warning: --terminal conflicts with --no-vga\n"
37 } elsif ($arg eq 'make-disk') {
38 usage () if @ARGV != 2;
39 my ($file, $mb) = @ARGV;
40 usage () if $mb !~ /^\d+(\.\d+)?|\.\d+$/;
41 die "$file: already exists\n" if -e $file;
43 create_disk ($file, int ($mb * 1008));
45 } elsif ($arg eq 'put') {
46 usage () if @ARGV != 1 && @ARGV != 2;
47 my ($hostfn, $guestfn) = @ARGV;
48 $guestfn = $hostfn if !defined $guestfn;
50 # Create scratch disk from file.
51 die "$hostfn: $!\n" if ! -e $hostfn;
53 copy_pad ($hostfn, "scratch.dsk", 512);
56 run_vm ("-ci", $guestfn, $size, "-q");
58 } elsif ($arg eq 'get') {
59 usage () if @ARGV != 1 && @ARGV != 2;
60 my ($guestfn, $hostfn) = @ARGV;
61 $hostfn = $guestfn if !defined $hostfn;
62 die "$hostfn: already exists\n" if -e $file;
64 # Create scratch disk big enough for any file in the filesystem
65 # (modulo sparse files).
66 die "fs.dsk: $!\n" if ! -e "fs.dsk";
68 my ($scratch_size) = -s "scratch.dsk";
69 $scratch_size = 0 if !defined $scratch_size;
70 create_disk ("scratch.dsk", $fs_size / 1024 + 16)
71 if $scratch_size < $fs_size + 16384;
74 run_vm ("-co", $guestfn, "-q");
76 # Read out scratch disk.
77 print "copying $guestfn from scratch.dsk to $hostfn...\n";
78 open (SRC, "<scratch.dsk") or die "scratch.dsk: open: $!\n";
79 open (DST, ">$hostfn") or die "$hostfn: create: $!\n";
81 read (SRC, $input, 512) == 512 or die "scratch.dsk: read error\n";
82 my ($size) = unpack ("%V", $input);
83 $size != 0xffffffff or die "$guestfn: too big for scratch.dsk?";
84 read (SRC, $src, $size) == $size or die "scratch.dsk: read error\n";
85 print DST $src or die "$hostfn: write error\n";
90 } elsif ($arg eq 'help' || $arg eq '--help') {
93 die "unknown option `$arg'\n";
100 $exitcode = 1 unless defined $exitcode;
101 print "pintos, a utility for invoking Pintos in a simulator\n";
102 print "Usage: pintos [OPTION...] COMMAND [ARG...]\n";
103 print "where COMMAND is one of the following:\n";
104 print " run [CMDLINE...] run a VM in the simulator\n";
105 print " make-disk FILE.DSK SIZE create FILE.DSK as empty SIZE MB disk\n";
106 print " put HOSTFN [GUESTFN] copy HOSTFN into VM (as GUESTFN)\n";
107 print " get GUESTFN [HOSTFN] copy GUESTFN out of VM (to HOSTFN)\n";
108 print " help print this help message and exit\n";
109 print "Simulator options:\n";
110 print " --bochs (default) Use Bochs as simulator\n";
111 print " --qemu Use qemu as simulator\n";
112 print " --gsx Use VMware GSX Server 3.x as simulator\n";
113 print "Debugger options:\n";
114 print " --no-debug (default) No debugger\n";
115 print " --monitor Debug with simulator's monitor\n";
116 print " --gdb Debug with gdb\n";
117 print "Display options: (default is VGA + serial)\n";
118 print " -v, --no-vga No VGA display\n";
119 print " -s, --no-serial No serial output\n";
120 print " -t, --terminal Display VGA in terminal (Bochs only)\n";
121 print "VM options:\n";
122 print " -j SEED Randomize timer interrupts (Bochs only)\n";
123 print " -m, --mem=MB Run VM with MB megabytes of physical memory\n";
128 my ($src, $dst, $blocksize) = @_;
129 run_command ("dd", "if=$src", "of=$dst", "bs=$blocksize", "conv=sync");
133 my ($disk, $kb) = @_;
134 run_command ("dd", "if=/dev/zero", "of=$disk", "bs=1024", "count=$kb");
138 my (@disks) = (undef, undef, undef, undef);
140 $sim = "bochs" if !defined $sim;
141 $debug = "no-debug" if !defined $debug;
142 $vga = "window" if !defined $vga;
144 $disks[0] = "os.dsk";
145 $disks[1] = "fs.dsk" if -e "fs.dsk";
146 $disks[2] = "scratch.dsk" if -e "scratch.dsk";
147 $disks[3] = "swap.dsk" if -e "swap.dsk";
149 die "$disks[0]: can't find OS disk\n" if ! -e $disks[0];
150 write_cmd_line ($disks[0], @_);
152 if ($sim eq 'bochs') {
153 if ($debug eq 'no-debug') {
155 } elsif ($debug eq 'monitor') {
157 } elsif ($debug eq 'gdb') {
160 $bochsbin = search_path ($bin);
161 $bochsshare = "$bochsbin/../share/bochs";
162 $romimage = "$bochsshare/BIOS-bochs-latest";
163 $vgaromimage = "$bochsshare/VGABIOS-lgpl-latest";
165 open (BOCHSRC, ">bochsrc.txt") or die "bochsrc.txt: create: $!\n";
166 print BOCHSRC "romimage: file=$romimage, address=0xf0000\n";
167 print BOCHSRC "vgaromimage: $vgaromimage\n";
168 print BOCHSRC bochs_disk_line ("ata0-master", $disks[0]);
169 print BOCHSRC bochs_disk_line ("ata0-slave", $disks[1]);
170 print BOCHSRC "ata1: enabled=1, ioaddr1=0x170, ioaddr2=0x370, irq=15\n"
171 if defined ($disks[2]) || defined ($disks[3]);
172 print BOCHSRC bochs_disk_line ("ata1-master", $disks[2]);
173 print BOCHSRC bochs_disk_line ("ata1-slave", $disks[3]);
174 print BOCHSRC "boot: c\n";
175 print BOCHSRC "ips: 1000000\n";
176 print BOCHSRC "clock: sync=none, time0=0\n";
177 print BOCHSRC "megs: $mem\n";
178 print BOCHSRC "log: bochsout.txt\n";
179 if ($vga ne 'terminal') {
180 print BOCHSRC "com1: enabled=1, dev=/dev/stdout\n"
182 print BOCHSRC "display_library: nogui\n"
185 print BOCHSRC "display_library: term\n";
189 push (@cmd, '-j', $jitter) if defined $jitter;
190 run_command_no_die (@cmd);
191 } elsif ($sim eq 'qemu') {
192 print "warning: qemu doesn't support --terminal\n"
193 if $vga eq 'terminal';
194 print "warning: qemu doesn't support jitter\n"
196 my (@cmd) = ('qemu');
197 push (@cmd, '-hda', $disks[0]) if defined $disks[0];
198 push (@cmd, '-hdb', $disks[1]) if defined $disks[1];
199 push (@cmd, '-hdc', $disks[2]) if defined $disks[2];
200 push (@cmd, '-hdd', $disks[3]) if defined $disks[3];
201 push (@cmd, '-m', $mem);
202 push (@cmd, '-nographic') if $vga eq 'none';
203 push (@cmd, '-serial', 'stdio') if $serial_out && $vga ne 'none';
204 push (@cmd, '-S') if $debug eq 'monitor';
205 push (@cmd, '-s') if $debug eq 'gdb';
207 } elsif ($sim eq 'gsx') {
208 print "warning: VMware GSX Server doesn't support --$debug\n"
209 if $debug ne 'no-debug';
210 print "warning: VMware GSX Server doesn't support --no-vga\n"
212 print "warning: VMware GSX Server doesn't support --terminal\n"
213 if $vga eq 'terminal';
214 print "warning: VMware GSX Server doesn't support jitter\n"
217 open (VMX, ">pintos.vmx") or die "pintos.vmx: create: $!\n";
218 chmod 0777 & ~umask, "pintos.vmx";
219 print VMX "#! /usr/bin/vmware -G\n";
220 print VMX "config.version = 6\n";
221 print VMX "guestOS = \"linux\"\n";
222 print VMX "floppy0.present = FALSE\n";
224 if (! -e 'null.bin') {
225 open (NULL, ">null.bin") or die "null.bin: create: $!\n";
229 for (my ($i) = 0; $i < 4; $i++) {
230 my ($dsk) = $disks[$i];
231 next if !defined $dsk;
232 $device = "ide" . int ($i / 2) . ":" . ($i % 2);
238 print VMX "\n$device.present = TRUE\n";
239 print VMX "$device.deviceType = \"plainDisk\"\n";
240 print VMX "$device.fileName = \"$pln\"\n";
242 my (%geom) = disk_geometry ($dsk);
243 open (PLN, ">$pln") or die "$pln: create: $!\n";
244 print PLN "DRIVETYPE ide\n";
245 print PLN "#vm|VERSION 2\n";
246 print PLN "#vm|TOOLSVERSION 2\n";
247 print PLN "CYLINDERS $geom{C}\n";
248 print PLN "HEADS $geom{H}\n";
249 print PLN "SECTORS $geom{S}\n";
250 print PLN "#vm|CAPACITY $geom{CAPACITY}\n";
251 print PLN "ACCESS \"$dsk\" 0 $geom{CAPACITY}\n";
257 $vmx = getcwd () . "/pintos.vmx";
258 system ("vmware-cmd -s register $vmx >&/dev/null");
259 system ("vmware-cmd $vmx stop hard >&/dev/null");
260 system ("vmware -l -G -x -q $vmx");
261 system ("vmware-cmd $vmx stop hard >&/dev/null");
266 my ($disk, @args) = @_;
268 die "command line includes empty string" if grep (/^$/, @args);
269 $args = join ("\0", @args) . "\0\0";
270 die "command line exceeds 128 bytes" if length ($args) > 128;
271 $args .= "\0" x (128 - length ($args));
273 print "writing command line to $disk...\n";
274 open (DISK, "+<$disk") or die "$disk: open: $!\n";
275 seek (DISK, 0x17e, 0) or die "$disk: seek: $!\n";
276 syswrite (DISK, $args) or die "$disk: write: $!\n";
277 close (DISK) or die "$disk: close: $!\n";
281 print join (' ', @_), "\n";
282 die "command failed\n" if system (@_);
285 sub run_command_no_die {
286 print join (' ', @_), "\n";
292 for $dir (split (':', $ENV{PATH})) {
293 return $dir if -e "$dir/$target";
295 die "$target not in PATH\n";
298 sub bochs_disk_line {
299 my ($device, $file) = @_;
300 return "" if !defined $file;
301 my (%geom) = disk_geometry ($file);
302 return "$device: type=disk, path=$file, mode=flat, "
303 . "cylinders=$geom{C}, heads=$geom{H}, spt=$geom{S}, "
304 . "translation=none\n";
309 my ($size) = -s $file;
310 die "$file: stat: $!\n" if !defined $size;
311 die "$file: size not a multiple of 512 bytes\n" if $size % 512;
312 $cylinders = int ($size / (512 * 16 * 63));
313 $cylinders++ if $size % (512 * 16 * 63);
315 return (CAPACITY => $size / 512,