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 '--no-vga' || $arg eq '-nv') {
19 print "warning: --no-vga conflicts with --terminal\n"
20 if $vga eq 'terminal';
22 } elsif ($arg eq '--no-serial' || $arg eq '-ns') {
24 } elsif ($arg eq '--terminal' || $arg eq '-t') {
25 print "warning: --terminal conflicts with --no-vga\n"
28 } elsif ($arg eq 'make-disk') {
29 my ($force) = @ARGV > 0 && $ARGV[0] eq '--force';
30 shift @ARGV if $force;
31 usage () if @ARGV != 2;
32 my ($file, $mb) = @ARGV;
33 usage () if $mb !~ /^\d+$/;
34 die "$file: already exists\n" if -e $file;
36 if ($mb != .5 && $mb != 1 && $mb != 1.5 && $mb != 2) {
37 print "$file: recommended sizes are .5, 1, 1.5, or 2 MB\n";
38 die "use --force to override\n" if !$force;
41 create_disk ($file, $mb * 1008);
43 } elsif ($arg eq 'put') {
44 usage () if @ARGV != 1 && @ARGV != 2;
45 my ($hostfn, $guestfn) = @ARGV;
46 $guestfn = $hostfn if !defined $guestfn;
48 # Create scratch disk from file.
49 die "$hostfn: $!\n" if ! -e $hostfn;
51 copy_pad ($hostfn, "scratch.dsk", 512);
54 run_vm ("-ci", $guestfn, $size, "-q");
56 } elsif ($arg eq 'get') {
57 usage () if @ARGV != 1 && @ARGV != 2;
58 my ($guestfn, $hostfn) = @ARGV;
59 $hostfn = $guestfn if !defined $hostfn;
60 die "$hostfn: already exists\n" if -e $file;
62 # Create scratch disk big enough for any file in the filesystem
63 # (modulo sparse files).
64 die "fs.dsk: $!\n" if ! -e "fs.dsk";
66 my ($scratch_size) = -s "scratch.dsk";
67 $scratch_size = 0 if !defined $scratch_size;
68 create_disk ("scratch.dsk", $fs_size / 1024 + 16)
69 if $scratch_size < $fs_size + 16384;
72 run_vm ("-co", $guestfn, "-q");
74 # Read out scratch disk.
75 print "copying $guestfn from scratch.dsk to $hostfn...\n";
76 open (SRC, "<scratch.dsk") or die "scratch.dsk: open: $!\n";
77 open (DST, ">$hostfn") or die "$hostfn: create: $!\n";
79 read (SRC, $input, 512) == 512 or die "scratch.dsk: read error\n";
80 my ($size) = unpack ("%V", $input);
81 $size != 0xffffffff or die "$guestfn: too big for scratch.dsk?";
82 read (SRC, $src, $size) == $size or die "scratch.dsk: read error\n";
83 print DST $src or die "$hostfn: write error\n";
88 } elsif ($arg eq 'help' || $arg eq '--help') {
91 die "unknown option `$arg'\n";
98 $exitcode = 1 unless defined $exitcode;
99 print "pintos, a utility for invoking Pintos in a simulator\n";
100 print "Usage: pintos [OPTION...] COMMAND [ARG...]\n";
101 print "where COMMAND is one of the following:\n";
102 print " run [CMDLINE...] run a VM in the simulator\n";
103 print " make-disk FILE.DSK SIZE create FILE.DSK as empty SIZE MB disk\n";
104 print " put HOSTFN [GUESTFN] copy HOSTFN into VM (as GUESTFN)\n";
105 print " get GUESTFN [HOSTFN] copy GUESTFN out of VM (to HOSTFN)\n";
106 print " help print this help message and exit\n";
107 print "Simulator options:\n";
108 print " --bochs (default) Use Bochs as simulator\n";
109 print " --qemu Use qemu as simulator\n";
110 print " --gsx Use VMware GSX Server 3.x as simulator\n";
111 print "Debugger options:\n";
112 print " --no-debug (default) No debugger\n";
113 print " --monitor Debug with simulator's monitor\n";
114 print " --gdb Debug with gdb\n";
115 print "Display options: (default is VGA + serial)\n";
116 print " -nv, --no-vga No VGA display\n";
117 print " -ns, --no-serial No serial output\n";
118 print " -t, --terminal Display VGA in terminal (Bochs only)\n";
119 print "VM options:\n";
120 print " --mem=MB Run VM with MB megabytes of physical memory\n";
125 my ($src, $dst, $blocksize) = @_;
126 run_command ("dd", "if=$src", "of=$dst", "bs=$blocksize", "conv=sync");
130 my ($disk, $kb) = @_;
131 run_command ("dd", "if=/dev/zero", "of=$disk", "bs=1024", "count=$kb");
135 my (@disks) = (undef, undef, undef, undef);
137 $sim = "bochs" if !defined $sim;
138 $debug = "no-debug" if !defined $debug;
139 $vga = "window" if !defined $vga;
141 $disks[0] = "os.dsk";
142 $disks[1] = "fs.dsk" if -e "fs.dsk";
143 $disks[2] = "scratch.dsk" if -e "scratch.dsk";
144 $disks[3] = "swap.dsk" if -e "swap.dsk";
146 die "$disks[0]: can't find OS disk\n" if ! -e $disks[0];
147 write_cmd_line ($disks[0], @_);
149 if ($sim eq 'bochs') {
150 if ($debug eq 'no-debug') {
152 } elsif ($debug eq 'monitor') {
154 } elsif ($debug eq 'gdb') {
157 $bochsbin = search_path ($bin);
158 $bochsshare = "$bochsbin/../share/bochs";
159 $romimage = "$bochsshare/BIOS-bochs-latest";
160 $vgaromimage = "$bochsshare/VGABIOS-lgpl-latest";
162 open (BOCHSRC, ">bochsrc.txt") or die "bochsrc.txt: create: $!\n";
163 print BOCHSRC "romimage: file=$romimage, address=0xf0000\n";
164 print BOCHSRC "vgaromimage: $vgaromimage\n";
165 print BOCHSRC bochs_disk_line ("ata0-master", $disks[0]);
166 print BOCHSRC bochs_disk_line ("ata0-slave", $disks[1]);
167 print BOCHSRC bochs_disk_line ("ata1-master", $disks[2]);
168 print BOCHSRC bochs_disk_line ("ata1-slave", $disks[3]);
169 print BOCHSRC "boot: c\n";
170 print BOCHSRC "ips: 1000000\n";
171 print BOCHSRC "clock: sync=none, time0=0\n";
172 print BOCHSRC "megs: $mem\n";
173 print BOCHSRC "log: bochsout.txt\n";
174 if ($vga ne 'terminal') {
175 print BOCHSRC "com1: enabled=1, dev=/dev/stdout\n"
177 print BOCHSRC "display_library: nogui\n"
180 print BOCHSRC "display_library: term\n";
183 run_command ($bin, '-q');
184 } elsif ($sim eq 'qemu') {
185 print "warning: qemu doesn't support --terminal\n"
186 if $vga eq 'terminal';
187 my (@cmd) = ('qemu');
188 push (@cmd, '-hda', $disks[0]) if defined $disks[0];
189 push (@cmd, '-hdb', $disks[1]) if defined $disks[1];
190 push (@cmd, '-hdc', $disks[2]) if defined $disks[2];
191 push (@cmd, '-hdd', $disks[3]) if defined $disks[3];
192 push (@cmd, '-m', $mem);
193 push (@cmd, '-nographic') if $vga eq 'none';
194 push (@cmd, '-serial', 'stdio') if $serial_out && $vga ne 'none';
195 push (@cmd, '-S') if $debug eq 'monitor';
196 push (@cmd, '-s') if $debug eq 'gdb';
198 } elsif ($sim eq 'gsx') {
199 print "warning: VMware GSX Server doesn't support --$debug\n"
200 if $debug ne 'no-debug';
201 print "warning: VMware GSX Server doesn't support --no-vga\n"
203 print "warning: VMware GSX Server doesn't support --terminal\n"
204 if $vga eq 'terminal';
206 open (VMX, ">pintos.vmx") or die "pintos.vmx: create: $!\n";
207 chmod 0777 & ~umask, "pintos.vmx";
208 print VMX "#! /usr/bin/vmware -G\n";
209 print VMX "config.version = 6\n";
210 print VMX "guestOS = \"linux\"\n";
211 print VMX "floppy0.present = FALSE\n";
213 if (! -e 'null.bin') {
214 open (NULL, ">null.bin") or die "null.bin: create: $!\n";
218 for (my ($i) = 0; $i < 4; $i++) {
219 my ($dsk) = $disks[$i];
220 next if !defined $dsk;
221 $device = "ide" . int ($i / 2) . ":" . ($i % 2);
227 print VMX "\n$device.present = TRUE\n";
228 print VMX "$device.deviceType = \"plainDisk\"\n";
229 print VMX "$device.fileName = \"$pln\"\n";
231 my (%geom) = disk_geometry ($dsk);
232 open (PLN, ">$pln") or die "$pln: create: $!\n";
233 print PLN "DRIVETYPE ide\n";
234 print PLN "#vm|VERSION 2\n";
235 print PLN "#vm|TOOLSVERSION 2\n";
236 print PLN "CYLINDERS $geom{C}\n";
237 print PLN "HEADS $geom{H}\n";
238 print PLN "SECTORS $geom{S}\n";
239 print PLN "#vm|CAPACITY $geom{CAPACITY}\n";
240 print PLN "ACCESS \"$dsk\" 0 $geom{CAPACITY}\n";
246 $vmx = getcwd () . "/pintos.vmx";
247 system ("vmware-cmd -s register $vmx >&/dev/null");
248 system ("vmware-cmd $vmx stop hard >&/dev/null");
249 system ("vmware -l -G -x -q $vmx");
250 system ("vmware-cmd $vmx stop hard >&/dev/null");
255 my ($disk, @args) = @_;
257 die "command line includes empty string" if grep (/^$/, @args);
258 $args = join ("\0", @args) . "\0\0";
259 die "command line exceeds 128 bytes" if length ($args) > 128;
260 $args .= "\0" x (128 - length ($args));
262 print "writing command line to $disk...\n";
263 open (DISK, "+<$disk") or die "$disk: open: $!\n";
264 seek (DISK, 0x17e, 0) or die "$disk: seek: $!\n";
265 syswrite (DISK, $args) or die "$disk: write: $!\n";
266 close (DISK) or die "$disk: close: $!\n";
270 print join (' ', @_), "\n";
271 die "command failed\n" if system (@_);
276 for $dir (split (':', $ENV{PATH})) {
277 return $dir if -e "$dir/$target";
279 die "$target not in PATH\n";
282 sub bochs_disk_line {
283 my ($device, $file) = @_;
284 return "" if !defined $file;
285 my (%geom) = disk_geometry ($file);
286 return "$device: type=disk, path=$file, mode=flat, "
287 . "cylinders=$geom{C}, heads=$geom{H}, spt=$geom{S}, "
288 . "translation=none\n";
293 my ($size) = -s $file;
294 die "$file: stat: $!\n" if !defined $size;
295 die "$file: size not a multiple of 512 bytes\n" if $size % 512;
296 $cylinders = int ($size / (512 * 16 * 63));
297 $cylinders++ if $size % (512 * 16 * 63);
299 return (CAPACITY => $size / 512,