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modules: added compiler virtual machine scripts; use to set up your own environment for !cc/compiler_client.pl

This commit is contained in:
Pragmatic Software 2011-01-26 01:59:19 +00:00
parent b2a1dec56c
commit 93658e0f6f
11 changed files with 1233 additions and 1 deletions

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@ -13,7 +13,7 @@ use warnings;
# These are set automatically by the build/commit script
use constant {
BUILD_NAME => "PBot",
BUILD_REVISION => 255,
BUILD_REVISION => 258,
BUILD_DATE => "2011-01-25",
};

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@ -0,0 +1,57 @@
Installation:
You will need to download qemu and set up a virtual machine containing a compiler.
Then you will need to edit some of the following files and replace IP addresses
and paths where appropriate (some locations may not yet be documented).
Once the files have been configured and copied to the appropriate locations,
you will need to first start up the compiler_vm_server.pl script, and then
connect to qemu's monitor and issue the 'savevm 1' command to save the virtual
machine in this state. Between compiles, this state will be loaded via
'loadvm 1' in order to reset everything within the machine for a clean and working
environment for subsequent compiles.
Files:
(Read within each file for configuration instructions.)
- compiler_client.pl: Main entry point for compiling snippets. Sends over TCP to
compiler_server.pl. This file can be run be run from the
client machine or anywhere.
- compiler_server.pl: Responsible for setting up a TCP server to listen for
incoming compile requests; and launching and resetting
the virtual machine. Sends to compiler_vm_client.pl.
Run this file on the server hosting the virtual machine.
- compiler_vm_client.pl: Responsible for sending snippets to the virtual
machine. Also expands/translates and formats
snippets into compilable code (with main function and
headers), and handles "interactive-editing".
Sends over TCP to qemu serial port, waits for result,
then sends result back caller (compiler_server.pl).
Run this file on the server hosting the virtual machine.
- compiler_vm_server.pl: Runs on the system inside the virtual machine.
This script listens for incoming code snippets over
the virtual machine's serial port.
Calls compiler_watchdog.pl to monitor its exit signal
or exit status, then returns result back over serial
port (to compiler_vm_client.pl).
- compiler_watchdog.pl: Runs a program and watches its exit signals/status.
*** The following files are just auxiliary tools to start/connect to qemu, provided
for convenience only. Perhaps they will be useful during installation/testing:
- monitor: Connects to qemu monitor (internal console) over TCP.
- serial: Connects to qemu serial port over TCP.
- runqemu: Launches qemu with a visible window, but without networking support.
- runeqmu.net: Launches qemu with a visible window, and with networking support.
You may load a state previously saved with runqemu and reboot it
or otherwise reload its networking configuration to gain networking.

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@ -0,0 +1,25 @@
#!/usr/bin/perl
use warnings;
use strict;
use IO::Socket;
my $sock = IO::Socket::INET->new(
PeerAddr => '71.93.78.61',
PeerPort => 9000,
Proto => 'tcp') || die "Cannot create socket: $!";
my $nick = shift @ARGV;
my $lang = shift @ARGV;
my $code = join ' ', @ARGV;
print $sock "compile:$nick:$lang\n";
print $sock "$code\n";
print $sock "compile:end\n";
while(my $line = <$sock>) {
print "$line";
}
close $sock;

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@ -0,0 +1,165 @@
#!/usr/bin/perl
use warnings;
use strict;
use IO::Socket;
use Net::hostent;
my $PORT = 9000;
sub server_listen {
my $port = shift @_;
my $server = IO::Socket::INET->new(
Proto => 'tcp',
LocalPort => $port,
Listen => SOMAXCONN,
Reuse => 1);
die "can't setup server" unless $server;
print "[Server $0 accepting clients]\n";
return $server;
}
sub vm_stop {
my $pid = shift @_;
return if not defined $pid;
kill 'TERM', $pid;
}
sub vm_start {
my $pid = fork;
if(not defined $pid) {
die "fork failed: $!";
}
if($pid == 0) {
exec('"/cygdrive/c/Program Files (x86)\QemuManager\qemu\qemu-system-x86_64.exe" -L "C:\Program Files (x86)\QemuManager\qemu" -M "pc" -m 512 -cpu "qemu64" -vga cirrus -drive "file=C:\Program Files (x86)\QemuManager\images\Test.qcow2,index=0,media=disk" -enable-kqemu -kernel-kqemu -net none -localtime -serial "tcp:127.0.0.1:4444,server,nowait" -monitor "tcp:127.0.0.1:4445,server,nowait" -kernel-kqemu -loadvm 1 -nographic');
} else {
return $pid;
}
}
sub execute {
my ($cmdline) = @_;
my ($ret, $result);
my $child = fork;
if($child == 0) {
($ret, $result) = eval {
my $result = '';
my $pid = open(my $fh, '-|', "$cmdline 2>&1");
local $SIG{ALRM} = sub { print "Time out\n"; kill 'TERM', $pid; die "Timed-out\n"; };
alarm(6);
while(my $line = <$fh>) {
$result .= $line;
}
close $fh;
my $ret = $? >> 8;
alarm 0;
return ($ret, $result);
};
alarm 0;
if($@ =~ /Timed-out/) {
#kill 'TERM', $child;
return (-13, '[Timed-out]');
}
print "[$ret, $result]\n";
return ($ret, $result);
} else {
waitpid($child, 0);
#print "child exited, parent continuing\n";
return undef;
}
}
sub compiler_server {
my $vm_pid = vm_start;
print "vm started pid: $vm_pid\n";
my $server = server_listen($PORT);
while (my $client = $server->accept()) {
$client->autoflush(1);
my $hostinfo = gethostbyaddr($client->peeraddr);
printf "[Connect from %s]\n", $hostinfo->name || $client->peerhost;
eval {
my $lang;
my $nick;
my $code = "";
local $SIG{ALRM} = sub { die 'Timed-out'; };
alarm 1;
while (my $line = <$client>) {
$line =~ s/[\r\n]+$//;
next if $line =~ m/^\s*$/;
alarm 1;
print "got: [$line]\n";
if($line =~ /compile:end/) {
$code = quotemeta($code);
print "Attemping compile...\n";
alarm 0;
my $tnick = quotemeta($nick);
my $tlang = quotemeta($lang);
my ($ret, $result) = execute("./compiler_vm_client.pl $tnick -lang=$tlang $code");
if(not defined $ret) {
#print "parent continued\n";
last;
}
print "Ret: $ret; result: [$result]\n";
if($ret == -13) {
print $client "$nick: ";
}
print $client $result . "\n";
close $client;
# child exit
exit;
}
if($line =~ /compile:([^:]+):(.*)$/) {
$nick = $1;
$lang = $2;
$code = "";
next;
}
$code .= $line . "\n";
}
alarm 0;
};
alarm 0;
close $client;
print "stopping vm $vm_pid\n";
vm_stop $vm_pid;
$vm_pid = vm_start;
print "new vm pid: $vm_pid\n";
}
}
compiler_server;

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@ -0,0 +1,667 @@
#!/usr/bin/perl
# use warnings;
use strict;
use feature qw(switch);
use IPC::Open2;
use Text::Balanced qw(extract_codeblock extract_delimited);
use IO::Socket;
use LWP::UserAgent;
my $MAX_UNDO_HISTORY = 100;
my $output = "";
my $nooutput = 'No output.';
my %languages = (
'C99' => "std=C99 with pedantic warnings",
'C' => "std=gnu89",
'CLANG' => "std=gnu89 clang/llvm",
'CLANG99' => "std=c99 clang/llvm with pedantic warnings",
# 'C++' => 1,
);
my %preludes = (
'C99' => "#include <stdio.h>\n#include <stdlib.h>\n#include <string.h>\n#include <unistd.h>\n#include <math.h>\n#include <limits.h>\n#include <sys/types.h>\n#include <stdint.h>\n\n",
'C' => "#include <stdio.h>\n#include <stdlib.h>\n#include <string.h>\n#include <unistd.h>\n#include <math.h>\n#include <limits.h>\n#include <sys/types.h>\n#include <stdint.h>\n\n",
'C++' => "#include <iostream>\n#include <cstdio>\n\nusing namespace std;\n\n",
);
sub reset_vm {
my $sock = IO::Socket::INET->new(PeerAddr => '127.0.0.1', PeerPort => '4445', Proto => 'tcp', Type => 'SOCK_STREAM');
die "Could not create socket: $!" unless $sock;
$sock->autoflush();
print $sock "loadvm 2\r\n";
while(my $line = <$sock>) {
last if $line =~ /loadvm 2/;
}
sleep 2;
$sock->shutdown(1);
}
sub pretty {
my $code = join '', @_;
my $result;
my $pid = open2(\*IN, \*OUT, 'astyle -Upf');
print OUT "$code\n";
close OUT;
while(my $line = <IN>) {
$result .= $line;
}
close IN;
waitpid($pid, 0);
return $result;
}
sub paste_codepad {
my $text = join(' ', @_);
$text =~ s/(.{120})\s/$1\n/g;
my $ua = LWP::UserAgent->new();
$ua->agent("Mozilla/5.0");
push @{ $ua->requests_redirectable }, 'POST';
my %post = ( 'lang' => 'C', 'code' => $text, 'private' => 'True', 'submit' => 'Submit' );
my $response = $ua->post("http://codepad.org", \%post);
if(not $response->is_success) {
return $response->status_line;
}
return $response->request->uri;
}
sub compile {
my ($lang, $code, $args, $input) = @_;
my $sock = IO::Socket::INET->new(PeerAddr => '127.0.0.1', PeerPort => '4444', Proto => 'tcp', Type => 'SOCK_STREAM');
die "Could not create socket: $!" unless $sock;
print $sock "compile:$lang:$args:$input\n";
print $sock "$code\n";
print $sock "compile:end\n";
my $result = "";
my $got_result = 0;
while(my $line = <$sock>) {
$line =~ s/[\r\n]+$//;
last if $line =~ /^result:end/;
if($line =~ /^result:/) {
$line =~ s/^result://;
$result .= $line;
$got_result = 1;
next;
}
if($got_result) {
$result .= $line . "\n";
}
}
close $sock;
return $result;
}
if($#ARGV < 1) {
print "Usage: cc [-compiler -options] <code> [-stdin=input]\n";
exit 0;
}
my $nick = shift @ARGV;
my $code = join ' ', @ARGV;
my @last_code;
my $lang = "C99";
$lang = $1 if $code =~ s/-lang=([^\b\s]+)//i;
$lang = "C" if $code =~ s/-nowarn[ings]*//i;
my $input = "";
$input = $1 if $code =~ s/-input=(.*)$//i;
my $args = "";
$args .= "$1 " while $code =~ s/^\s*(-[^ ]+)\s*//;
$args =~ s/\s+$//;
if(open FILE, "< last_code.txt") {
while(my $line = <FILE>) {
chomp $line;
push @last_code, $line;
}
close FILE;
}
if($code =~ m/^\s*show\s*$/i) {
if(defined $last_code[0]) {
print "$nick: $last_code[0]\n";
} else {
print "$nick: No recent code to show.\n"
}
exit 0;
}
my $got_run = undef;
if($code =~ m/^\s*(run|paste)\s*$/i) {
$got_run = lc $1;
if(defined $last_code[0]) {
$code = $last_code[0];
} else {
print "$nick: No recent code to $got_run.\n";
exit 0;
}
} else {
my $subcode = $code;
my $got_undo = 0;
my $got_sub = 0;
while($subcode =~ s/^\s*(and)?\s*undo//) {
splice @last_code, 0, 1;
if(not defined $last_code[0]) {
print "$nick: No more undos remaining.\n";
exit 0;
} else {
$code = $last_code[0];
$got_undo = 1;
}
}
my @replacements;
my $prevchange = $last_code[0];
my $got_changes = 0;
while(1) {
$got_sub = 0;
$got_changes = 0;
if($subcode =~ m/^\s*(and)?\s*remove \s*([^']+)?\s*'/) {
my $modifier = 'first';
$subcode =~ s/^\s*(and)?\s*//;
$subcode =~ s/remove\s*([^']+)?\s*//i;
$modifier = $1 if defined $1;
$modifier =~ s/\s+$//;
my ($e, $r) = extract_delimited($subcode, "'");
my $text;
if(defined $e) {
$text = $e;
$text =~ s/^'//;
$text =~ s/'$//;
$subcode = "replace $modifier '$text' with ''$r";
} else {
print "$nick: Unbalanced single quotes. Usage: !cc remove [all, first, .., tenth, last] 'text' [and ...]\n";
exit 0;
}
next;
}
if($subcode =~ s/^\s*(and)?\s*prepend '//) {
$subcode = "'$subcode";
my ($e, $r) = extract_delimited($subcode, "'");
my $text;
if(defined $e) {
$text = $e;
$text =~ s/^'//;
$text =~ s/'$//;
$subcode = $r;
$got_sub = 1;
$got_changes = 1;
if(not defined $prevchange) {
print "$nick: No recent code to prepend to.\n";
exit 0;
}
$code = $prevchange;
$code =~ s/^/$text /;
$prevchange = $code;
} else {
print "$nick: Unbalanced single quotes. Usage: !cc prepend 'text' [and ...]\n";
exit 0;
}
next;
}
if($subcode =~ s/^\s*(and)?\s*append '//) {
$subcode = "'$subcode";
my ($e, $r) = extract_delimited($subcode, "'");
my $text;
if(defined $e) {
$text = $e;
$text =~ s/^'//;
$text =~ s/'$//;
$subcode = $r;
$got_sub = 1;
$got_changes = 1;
if(not defined $prevchange) {
print "$nick: No recent code to append to.\n";
exit 0;
}
$code = $prevchange;
$code =~ s/$/ $text/;
$prevchange = $code;
} else {
print "$nick: Unbalanced single quotes. Usage: !cc append 'text' [and ...]\n";
exit 0;
}
next;
}
if($subcode =~ m/^\s*(and)?\s*replace\s*([^']+)?\s*'.*'\s*with\s*'.*'/i) {
$got_sub = 1;
my $modifier = 'first';
$subcode =~ s/^\s*(and)?\s*//;
$subcode =~ s/replace\s*([^']+)?\s*//i;
$modifier = $1 if defined $1;
$modifier =~ s/\s+$//;
my ($from, $to);
my ($e, $r) = extract_delimited($subcode, "'");
if(defined $e) {
$from = $e;
$from =~ s/^'//;
$from =~ s/'$//;
$from = quotemeta $from;
$subcode = $r;
$subcode =~ s/\s*with\s*//i;
} else {
print "$nick: Unbalanced single quotes. Usage: !cc replace 'from' with 'to' [and ...]\n";
exit 0;
}
($e, $r) = extract_delimited($subcode, "'");
if(defined $e) {
$to = $e;
$to =~ s/^'//;
$to =~ s/'$//;
$subcode = $r;
} else {
print "$nick: Unbalanced single quotes. Usage: !cc replace 'from' with 'to' [and replace ... with ... [and ...]]\n";
exit 0;
}
given($modifier) {
when($_ eq 'all' ) {}
when($_ eq 'last' ) {}
when($_ eq 'first' ) { $modifier = 1; }
when($_ eq 'second' ) { $modifier = 2; }
when($_ eq 'third' ) { $modifier = 3; }
when($_ eq 'fourth' ) { $modifier = 4; }
when($_ eq 'fifth' ) { $modifier = 5; }
when($_ eq 'sixth' ) { $modifier = 6; }
when($_ eq 'seventh') { $modifier = 7; }
when($_ eq 'eighth' ) { $modifier = 8; }
when($_ eq 'nineth' ) { $modifier = 9; }
when($_ eq 'tenth' ) { $modifier = 10; }
default { print "$nick: Bad replacement modifier '$modifier'; valid modifiers are 'all', 'first', 'second', ..., 'tenth', 'last'\n"; exit 0; }
}
my $replacement = {};
$replacement->{'from'} = $from;
$replacement->{'to'} = $to;
$replacement->{'modifier'} = $modifier;
push @replacements, $replacement;
next;
}
if($subcode =~ m/^\s*(and)?\s*s\/.*\//) {
$got_sub = 1;
$subcode =~ s/^\s*(and)?\s*s//;
my ($regex, $to);
my ($e, $r) = extract_delimited($subcode, '/');
if(defined $e) {
$regex = $e;
$regex =~ s/^\///;
$regex =~ s/\/$//;
$subcode = "/$r";
} else {
print "$nick: Unbalanced slashes. Usage: !cc s/regex/substitution/[gi] [and s/.../.../ [and ...]]\n";
exit 0;
}
($e, $r) = extract_delimited($subcode, '/');
if(defined $e) {
$to = $e;
$to =~ s/^\///;
$to =~ s/\/$//;
$subcode = $r;
} else {
print "$nick: Unbalanced slashes. Usage: !cc s/regex/substitution/[gi] [and s/.../.../ [and ...]]\n";
exit 0;
}
my $suffix;
$suffix = $1 if $subcode =~ s/^([^ ]+)//;
if(length $suffix and $suffix =~ m/[^gi]/) {
print "$nick: Bad regex modifier '$suffix'. Only 'i' and 'g' are allowed.\n";
exit 0;
}
if(defined $prevchange) {
$code = $prevchange;
} else {
print "$nick: No recent code to change.\n";
exit 0;
}
my $ret = eval {
my ($ret, $a, $b, $c, $d, $e, $f, $g, $h, $i, $before, $after);
if(not length $suffix) {
$ret = $code =~ s|$regex|$to|;
($a, $b, $c, $d, $e, $f, $g, $h, $i) = ($1, $2, $3, $4, $5, $6, $7, $8, $9);
$before = $`;
$after = $';
} elsif($suffix =~ /^i$/) {
$ret = $code =~ s|$regex|$to|i;
($a, $b, $c, $d, $e, $f, $g, $h, $i) = ($1, $2, $3, $4, $5, $6, $7, $8, $9);
$before = $`;
$after = $';
} elsif($suffix =~ /^g$/) {
$ret = $code =~ s|$regex|$to|g;
($a, $b, $c, $d, $e, $f, $g, $h, $i) = ($1, $2, $3, $4, $5, $6, $7, $8, $9);
$before = $`;
$after = $';
} elsif($suffix =~ /^ig$/ or $suffix =~ /^gi$/) {
$ret = $code =~ s|$regex|$to|gi;
($a, $b, $c, $d, $e, $f, $g, $h, $i) = ($1, $2, $3, $4, $5, $6, $7, $8, $9);
$before = $`;
$after = $';
}
if($ret) {
$code =~ s/\$1/$a/g;
$code =~ s/\$2/$b/g;
$code =~ s/\$3/$c/g;
$code =~ s/\$4/$d/g;
$code =~ s/\$5/$e/g;
$code =~ s/\$6/$f/g;
$code =~ s/\$7/$g/g;
$code =~ s/\$8/$h/g;
$code =~ s/\$9/$i/g;
$code =~ s/\$`/$before/g;
$code =~ s/\$'/$after/g;
}
return $ret;
};
if($@) {
print "$nick: $@\n";
exit 0;
}
if($ret) {
$got_changes = 1;
}
$prevchange = $code;
}
if($got_sub and not $got_changes) {
print "$nick: No substitutions made.\n";
exit 0;
} elsif($got_sub and $got_changes) {
next;
}
last;
}
if($#replacements > -1) {
@replacements = sort { $a->{'from'} cmp $b->{'from'} or $a->{'modifier'} <=> $b->{'modifier'} } @replacements;
my ($previous_from, $previous_modifier);
foreach my $replacement (@replacements) {
my $from = $replacement->{'from'};
my $to = $replacement->{'to'};
my $modifier = $replacement->{'modifier'};
if(defined $previous_from) {
if($previous_from eq $from and $previous_modifier =~ /^\d+$/) {
$modifier -= $modifier - $previous_modifier;
}
}
if(defined $prevchange) {
$code = $prevchange;
} else {
print "$nick: No recent code to change.\n";
exit 0;
}
my $ret = eval {
my $got_change;
my ($first_char, $last_char, $first_bound, $last_bound);
$first_char = $1 if $from =~ m/^(.)/;
$last_char = $1 if $from =~ m/(.)$/;
if($first_char =~ /\W/) {
$first_bound = '.';
} else {
$first_bound = '\b';
}
if($last_char =~ /\W/) {
$last_bound = '\B';
} else {
$last_bound = '\b';
}
if($modifier eq 'all') {
while($code =~ s/($first_bound)$from($last_bound)/$1$to$2/) {
$got_change = 1;
}
} elsif($modifier eq 'last') {
if($code =~ s/(.*)($first_bound)$from($last_bound)/$1$2$to$3/) {
$got_change = 1;
}
} else {
my $count = 0;
my $unescaped = $from;
$unescaped =~ s/\\//g;
if($code =~ s/($first_bound)$from($last_bound)/if(++$count == $modifier) { "$1$to$2"; } else { "$1$unescaped$2"; }/gex) {
$got_change = 1;
}
}
return $got_change;
};
if($@) {
print "$nick: $@\n";
exit 0;
}
if($ret) {
$got_sub = 1;
$got_changes = 1;
}
$prevchange = $code;
$previous_from = $from;
$previous_modifier = $modifier;
}
if($got_sub and not $got_changes) {
print "$nick: No replacements made.\n";
exit 0;
}
}
open FILE, "> last_code.txt";
unless ($got_undo and not $got_sub) {
unshift @last_code, $code;
}
my $i = 0;
foreach my $line (@last_code) {
last if(++$i > $MAX_UNDO_HISTORY);
print FILE "$line\n";
}
close FILE;
if($got_undo and not $got_sub) {
print "$nick: $code\n";
exit 0;
}
}
# check to see if -flags were added by replacements
$lang = $1 if $code =~ s/-lang=([^\b\s]+)//i;
$lang = "C" if $code =~ s/-nowarn[ings]*//i;
$input = $1 if $code =~ s/-input=(.*)$//i;
$args .= "$1 " while $code =~ s/^\s*(-[^ ]+)\s*//;
$args =~ s/\s+$//;
unless($got_run) {
open FILE, ">> log.txt";
print FILE localtime() . "\n";
print FILE "$nick: $code\n";
}
my $found = 0;
my @langs;
foreach my $l (sort { uc $a cmp uc $b } keys %languages) {
push @langs, sprintf(" %-30s => %s", $l, $languages{$l});
if(uc $lang eq uc $l) {
$lang = $l;
$found = 1;
}
}
if(not $found) {
print "$nick: Invalid language '$lang'. Supported languages are:\n", (join ",\n", @langs), "\n";
exit 0;
}
$code =~ s/#include <([^>]+)>/#include <$1>\n/g;
$code =~ s/#([^ ]+) (.*?)\\n/#$1 $2\n/g;
$code =~ s/#([\w\d_]+)\\n/#$1\n/g;
my $precode = $preludes{$lang} . $code;
$code = '';
if($lang eq 'C' or $lang eq 'C99' or $lang eq 'C++') {
my $has_main = 0;
my $prelude = '';
$prelude = "$1$2" if $precode =~ s/^\s*(#.*)(#.*?[>\n])//s;
my $preprecode = $precode;
while($preprecode =~ s/([ a-zA-Z0-9\_\*\[\]]+)\s+([a-zA-Z0-9_*]+)\s*\((.*?)\)\s*({.*)//) {
my ($ret, $ident, $params, $potential_body) = ($1, $2, $3, $4);
$ret =~ s/^\s+//;
$ret =~ s/\s+$//;
if($ret eq "else" or $ret eq "while") {
$precode .= "$ret $ident ($params) $potential_body";
next;
} else {
$precode =~ s/([ a-zA-Z0-9\_\*\[\]]+)\s+([a-zA-Z0-9_*]+)\s*\((.*?)\)\s*({.*)//;
}
my @extract = extract_codeblock($potential_body, '{}');
my $body;
if(not defined $extract[0]) {
$output .= "error: unmatched brackets for function '$ident';\n";
$body = $extract[1];
} else {
$body = $extract[0];
$preprecode .= $extract[1];
$precode .= $extract[1];
}
#print "[$ret][$ident][$params][$body]\n";
$code .= "$ret $ident($params) $body\n\n";
$has_main = 1 if $ident eq 'main';
}
$precode =~ s/^\s+//;
$precode =~ s/\s+$//;
if(not $has_main) {
$code = "$prelude\n\n$code\n\nint main(int argc, char **argv) {\n$precode\n;\nreturn 0;\n}\n";
$nooutput = "Success [no output].";
} else {
$code = "$prelude\n\n$precode\n\n$code\n";
$nooutput = "No output.";
}
} else {
$code = $precode;
}
$code =~ s/\|n/\n/g;
$code =~ s/^\s+//;
$code =~ s/\s+$//;
$code =~ s/;\n;\n/;\n/g;
$code =~ s/(\n\n)+/\n\n/g;
if(defined $got_run and $got_run eq "paste") {
my $uri = paste_codepad(pretty($code));
print "$nick: $uri\n";
exit 0;
}
print FILE "$nick: [lang:$lang][args:$args][input:$input]\n$code\n";
$output = compile($lang, $code, $args, $input);
$output =~ s/cc1: warnings being treated as errors//;
$output =~ s/ Line \d+ ://g;
$output =~ s/ \(first use in this function\)//g;
$output =~ s/error: \(Each undeclared identifier is reported only once.*?\)//msg;
$output =~ s/prog\.c:[:\d]*//g;
$output =~ s/ld: warning: cannot find entry symbol _start; defaulting to [^ ]+//;
$output =~ s/error: (.*?) error/error: $1; error/msg;
$output =~ s/\/tmp\/.*\.o://g;
$output =~ s/collect2: ld returned \d+ exit status//g;
$output =~ s/\(\.text\+[^)]+\)://g;
$output =~ s/\[ In/[In/;
my $left_quote = chr(226) . chr(128) . chr(152);
my $right_quote = chr(226) . chr(128) . chr(153);
$output =~ s/$left_quote/'/g;
$output =~ s/$right_quote/'/g;
$output = $nooutput if $output =~ m/^\s+$/;
unless($got_run) {
print FILE localtime() . "\n";
print FILE "$nick: $output\n\n";
close FILE;
}
print "$nick: $output\n";
#reset_vm;

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#!/usr/bin/perl
use warnings;
use strict;
my %languages = (
'C' => {
'cmdline' => 'gcc $args $file -o prog',
'args' => '-Wextra -Wall -Wno-unused -std=gnu89',
'file' => 'prog.c',
},
'C++' => {
'cmdline' => 'g++ $args $file -o prog',
'args' => '',
'file' => 'prog.cpp',
},
'C99' => {
'cmdline' => 'gcc $args $file -o prog',
'args' => '-Wextra -Wall -Wno-unused -pedantic -std=c99',
'file' => 'prog.c',
},
);
sub runserver {
open(my $input, '<', "/dev/ttyS0") or die $!;
open(my $output, '>', "/dev/ttyS0") or die $!;
my $lang;
my $code;
my $user_args;
my $user_input;
print "Waiting for input...\n";
while(my $line = <$input>) {
chomp $line;
next unless length $line;
print "Got [$line]\n";
if($line =~ m/^compile:\s*end/) {
next if not defined $lang or not defined $code;
print "Attempting compile [$lang] ...\n";
my $result = interpret($lang, $code, $user_args, $user_input);
print "Done compiling; result: [$result]\n";
print $output "result:$result\n";
print $output "result:end\n";
print "input: ";
next;
}
if($line =~ m/^compile:\s*(.*)/) {
my $options = $1;
$user_args = undef;
$user_input = undef;
$lang = undef;
($lang, $user_args, $user_input) = split /:/, $options;
$code = "";
$lang = "C99" if not defined $lang;
$user_args = "" if not defined $user_args;
$user_input = "" if not defined $user_input;
print "Setting lang [$lang]; [$user_args]; [$user_input]\n";
next;
}
$code .= $line . "\n";
}
close $input;
close $output;
}
sub interpret {
my ($lang, $code, $user_args, $user_input) = @_;
print "lang: [$lang], code: [$code], user_args: [$user_args], input: [$user_input]\n";
$lang = uc $lang;
if(not exists $languages{$lang}) {
return "No support for language '$lang' at this time.\n";
}
open(my $fh, '>', $languages{$lang}{'file'}) or die $!;
print $fh $code . "\n";
close $fh;
my $cmdline = $languages{$lang}{'cmdline'};
if(length $user_args) {
print "Replacing args with $user_args\n";
$user_args = quotemeta($user_args);
$user_args =~ s/\\ / /g;
$cmdline =~ s/\$args/$user_args/;
} else {
$cmdline =~ s/\$args/$languages{$lang}{'args'}/;
}
$cmdline =~ s/\$file/$languages{$lang}{'file'}/;
print "Executing [$cmdline]\n";
my ($ret, $result) = execute(60, $cmdline);
print "Got result: ($ret) [$result]\n";
if($ret != 0) {
return $result;
}
my $output = "";
if(length $result) {
$result =~ s/^\s+//;
$result =~ s/\s+$//;
$output = "[$result]\n";
}
($ret, $result) = execute(5, "./compiler_watchdog.pl");
print "Executed prog; got result: ($ret) [$result]\n";
$result =~ s/^\s+//;
$result =~ s/\s+$//;
if(not length $result) {
$result = "Success (no output).\n" if $ret == 0;
$result = "Success (exit code $ret).\n" if $ret != 0;
}
return $output . "\n" . $result;
}
sub execute {
my $timeout = shift @_;
my ($cmdline) = @_;
my ($ret, $result);
($ret, $result) = eval {
print "eval\n";
my $result = '';
my $pid = open(my $fh, '-|', "$cmdline 2>&1");
local $SIG{ALRM} = sub { print "Time out\n"; kill 'TERM', $pid; die "$result [Timed-out]\n"; };
alarm($timeout);
while(my $line = <$fh>) {
$result .= $line;
}
close $fh;
my $ret = $? >> 8;
alarm 0;
return ($ret, $result);
};
print "done eval\n";
alarm 0;
if($@ =~ /Timed-out/) {
return (-1, $@);
}
print "[$ret, $result]\n";
return ($ret, $result);
}
runserver;

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#!/usr/bin/perl
use warnings;
use strict;
use POSIX ":sys_wait_h";
my @signame;
$signame[0] = 'SIGZERO';
$signame[1] = 'SIGHUP';
$signame[2] = 'SIGINT';
$signame[3] = 'SIGQUIT';
$signame[4] = 'SIGILL';
$signame[5] = 'SIGTRAP';
$signame[6] = 'SIGABRT';
$signame[7] = 'SIGBUS';
$signame[8] = 'SIGFPE';
$signame[9] = 'SIGKILL';
$signame[10] = 'SIGUSR1';
$signame[11] = 'SIGSEGV';
$signame[12] = 'SIGUSR2';
$signame[13] = 'SIGPIPE';
$signame[14] = 'SIGALRM';
$signame[15] = 'SIGTERM';
$signame[16] = 'SIGSTKFLT';
$signame[17] = 'SIGCHLD';
$signame[18] = 'SIGCONT';
$signame[19] = 'SIGSTOP';
$signame[20] = 'SIGTSTP';
$signame[21] = 'SIGTTIN';
$signame[22] = 'SIGTTOU';
$signame[23] = 'SIGURG';
$signame[24] = 'SIGXCPU';
$signame[25] = 'SIGXFSZ';
$signame[26] = 'SIGVTALRM';
$signame[27] = 'SIGPROF';
$signame[28] = 'SIGWINCH';
$signame[29] = 'SIGIO';
$signame[30] = 'SIGPWR';
$signame[31] = 'SIGSYS';
$signame[32] = 'SIGNUM32';
$signame[33] = 'SIGNUM33';
$signame[34] = 'SIGRTMIN';
$signame[35] = 'SIGNUM35';
$signame[36] = 'SIGNUM36';
$signame[37] = 'SIGNUM37';
$signame[38] = 'SIGNUM38';
$signame[39] = 'SIGNUM39';
$signame[40] = 'SIGNUM40';
$signame[41] = 'SIGNUM41';
$signame[42] = 'SIGNUM42';
$signame[43] = 'SIGNUM43';
$signame[44] = 'SIGNUM44';
$signame[45] = 'SIGNUM45';
$signame[46] = 'SIGNUM46';
$signame[47] = 'SIGNUM47';
$signame[48] = 'SIGNUM48';
$signame[49] = 'SIGNUM49';
$signame[50] = 'SIGNUM50';
$signame[51] = 'SIGNUM51';
$signame[52] = 'SIGNUM52';
$signame[53] = 'SIGNUM53';
$signame[54] = 'SIGNUM54';
$signame[55] = 'SIGNUM55';
$signame[56] = 'SIGNUM56';
$signame[57] = 'SIGNUM57';
$signame[58] = 'SIGNUM58';
$signame[59] = 'SIGNUM59';
$signame[60] = 'SIGNUM60';
$signame[61] = 'SIGNUM61';
$signame[62] = 'SIGNUM62';
$signame[63] = 'SIGNUM63';
$signame[64] = 'SIGRTMAX';
$signame[65] = 'SIGIOT';
$signame[66] = 'SIGCLD';
$signame[67] = 'SIGPOLL';
$signame[68] = 'SIGUNUSED';
sub reaper {
my $child;
while (($child=waitpid(-1,WNOHANG))>0) {
# See waitpid(2) and POSIX(3perl)
my $status = $?;
my $exitcode = $status >> 8;
my $wifexited = WIFEXITED($status);
my $wexitstatus = $wifexited ? WEXITSTATUS($status) : undef;
my $wifsignaled = WIFSIGNALED($status);
my $wtermsig = $wifsignaled ? WTERMSIG($status) : undef;
my $wifstopped = WIFSTOPPED($status);
my $wstopsig = $wifstopped ? WSTOPSIG($status) : undef;
if($wifsignaled == 1) {
print "\nProgram received signal $wtermsig ($signame[$wtermsig])\n";
exit;
}
if(($wifexited == 1) && ($exitcode != 0)) {
print "\nExit: $exitcode\n";
exit;
} elsif(($wifexited ==1) && ($exitcode == 0)) {
exit;
}
else {
print ""
." status=$status exitcode=$exitcode"
." wifexited=$wifexited"
." wexitstatus=".(defined($wexitstatus) ? $wexitstatus : "
+undef")
." wifsignaled=$wifsignaled"
." wtermsig=".(defined($wtermsig) ? $wtermsig : "undef")
." wifstopped=$wifstopped"
." wstopsig=".(defined($wstopsig) ? $wstopsig : "undef")
."\n";
exit;
}
}
}
sub execute {
my ($cmdline) = @_;
my ($ret, $result);
local $SIG{CHLD} = \&reaper;
my $child = fork;
local $SIG{TERM} = sub { kill 'TERM', $child; };
if($child == 0) {
exec("$cmdline 2>&1");
} else {
while(1) { sleep 10; }
}
}
execute("./prog");

1
modules/compiler_vm/monitor Executable file
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telnet localhost 4445

1
modules/compiler_vm/runqemu Executable file
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@ -0,0 +1 @@
"/cygdrive/c/Program Files (x86)\QemuManager\qemu\qemu-system-x86_64.exe" -L "C:\Program Files (x86)\QemuManager\qemu" -M "pc" -m 512 -cpu "qemu64" -vga cirrus -drive "file=C:\Program Files (x86)\QemuManager\images\Test.qcow2,index=0,media=disk" -enable-kqemu -kernel-kqemu -net none -localtime -serial "tcp:127.0.0.1:4444,server,nowait" -monitor "tcp:127.0.0.1:4445,server,nowait" -kernel-kqemu -loadvm 1

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@ -0,0 +1 @@
"/cygdrive/c/Program Files (x86)\QemuManager\qemu\qemu-system-x86_64.exe" -L "C:\Program Files (x86)\QemuManager\qemu" -M "pc" -m 512 -cpu "qemu64" -vga cirrus -drive "file=C:\Program Files (x86)\QemuManager\images\Test.qcow2,index=0,media=disk" -enable-kqemu -net nic,vlan=0,macaddr=52-54-00-F0-EC-8D,model=rtl8139 -net user,vlan=0 -localtime -serial "tcp:127.0.0.1:4444,server,nowait" -monitor "tcp:127.0.0.1:4445,server,nowait" -loadvm 1

1
modules/compiler_vm/serial Executable file
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@ -0,0 +1 @@
telnet localhost 4444