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-rw-r--r--clang/www/demo/index.cgi461
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diff --git a/clang/www/demo/index.cgi b/clang/www/demo/index.cgi
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@@ -0,0 +1,461 @@
+#!/usr/dcs/software/supported/bin/perl -w
+# LLVM Web Demo script
+#
+
+use strict;
+use CGI;
+use POSIX;
+use Mail::Send;
+
+$| = 1;
+
+my $ROOT = "/tmp/webcompile";
+#my $ROOT = "/home/vadve/lattner/webcompile";
+
+open( STDERR, ">&STDOUT" ) or die "can't redirect stderr to stdout";
+
+if ( !-d $ROOT ) { mkdir( $ROOT, 0777 ); }
+
+my $LOGFILE = "$ROOT/log.txt";
+my $FORM_URL = 'index.cgi';
+my $MAILADDR = 'sabre@nondot.org';
+my $CONTACT_ADDRESS = 'Questions or comments? Email the <a href="http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev">LLVMdev mailing list</a>.';
+my $LOGO_IMAGE_URL = 'cathead.png';
+my $TIMEOUTAMOUNT = 20;
+$ENV{'LD_LIBRARY_PATH'} = '/home/vadve/shared/localtools/fc1/lib/';
+
+my @PREPENDPATHDIRS =
+ (
+ '/home/vadve/shared/llvm-gcc4.0-2.1/bin/',
+ '/home/vadve/shared/llvm-2.1/Release/bin');
+
+my $defaultsrc = "#include <stdio.h>\n#include <stdlib.h>\n\n" .
+ "int power(int X) {\n if (X == 0) return 1;\n" .
+ " return X*power(X-1);\n}\n\n" .
+ "int main(int argc, char **argv) {\n" .
+ " printf(\"%d\\n\", power(atoi(argv[0])));\n}\n";
+
+sub getname {
+ my ($extension) = @_;
+ for ( my $count = 0 ; ; $count++ ) {
+ my $name =
+ sprintf( "$ROOT/_%d_%d%s", $$, $count, $extension );
+ if ( !-f $name ) { return $name; }
+ }
+}
+
+my $c;
+
+sub barf {
+ print "<b>", @_, "</b>\n";
+ print $c->end_html;
+ system("rm -f $ROOT/locked");
+ exit 1;
+}
+
+sub writeIntoFile {
+ my $extension = shift @_;
+ my $contents = join "", @_;
+ my $name = getname($extension);
+ local (*FILE);
+ open( FILE, ">$name" ) or barf("Can't write to $name: $!");
+ print FILE $contents;
+ close FILE;
+ return $name;
+}
+
+sub addlog {
+ my ( $source, $pid, $result ) = @_;
+ open( LOG, ">>$LOGFILE" );
+ my $time = scalar localtime;
+ my $remotehost = $ENV{'REMOTE_ADDR'};
+ print LOG "[$time] [$remotehost]: $pid\n";
+ print LOG "<<<\n$source\n>>>\nResult is: <<<\n$result\n>>>\n";
+ close LOG;
+}
+
+sub dumpFile {
+ my ( $header, $file ) = @_;
+ my $result;
+ open( FILE, "$file" ) or barf("Can't read $file: $!");
+ while (<FILE>) {
+ $result .= $_;
+ }
+ close FILE;
+ my $UnhilightedResult = $result;
+ my $HtmlResult =
+ "<h3>$header</h3>\n<pre>\n" . $c->escapeHTML($result) . "\n</pre>\n";
+ if (wantarray) {
+ return ( $UnhilightedResult, $HtmlResult );
+ }
+ else {
+ return $HtmlResult;
+ }
+}
+
+sub syntaxHighlightLLVM {
+ my ($input) = @_;
+ $input =~ s@\b(void|i8|i1|i16|i32|i64|float|double|type|label|opaque)\b@<span class="llvm_type">$1</span>@g;
+ $input =~ s@\b(add|sub|mul|div|rem|and|or|xor|setne|seteq|setlt|setgt|setle|setge|phi|tail|call|cast|to|shl|shr|vaarg|vanext|ret|br|switch|invoke|unwind|malloc|alloca|free|load|store|getelementptr|begin|end|true|false|declare|global|constant|const|internal|uninitialized|external|implementation|linkonce|weak|appending|null|to|except|not|target|endian|pointersize|big|little|volatile)\b@<span class="llvm_keyword">$1</span>@g;
+
+ # Add links to the FAQ.
+ $input =~ s@(_ZNSt8ios_base4Init[DC]1Ev)@<a href="../docs/FAQ.html#iosinit">$1</a>@g;
+ $input =~ s@\bundef\b@<a href="../docs/FAQ.html#undef">undef</a>@g;
+ return $input;
+}
+
+sub mailto {
+ my ( $recipient, $body ) = @_;
+ my $msg =
+ new Mail::Send( Subject => "LLVM Demo Page Run", To => $recipient );
+ my $fh = $msg->open();
+ print $fh $body;
+ $fh->close();
+}
+
+$c = new CGI;
+print $c->header;
+
+print <<EOF;
+<html>
+<head>
+ <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
+ <title>Try out LLVM in your browser!</title>
+ <style>
+ \@import url("syntax.css");
+ \@import url("http://llvm.org/llvm.css");
+ </style>
+</head>
+<body leftmargin="10" marginwidth="10">
+
+<div class="www_sectiontitle">
+ Try out LLVM in your browser!
+</div>
+
+<table border=0><tr><td>
+<img align=right width=100 height=111 src="$LOGO_IMAGE_URL">
+</td><td>
+EOF
+
+if ( -f "$ROOT/locked" ) {
+ my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,$atime,$locktime) =
+ stat("$ROOT/locked");
+ my $currtime = time();
+ if ($locktime + 60 > $currtime) {
+ print "This page is already in use by someone else at this ";
+ print "time, try reloading in a second or two. Meow!</td></tr></table>'\n";
+ exit 0;
+ }
+}
+
+system("touch $ROOT/locked");
+
+print <<END;
+Bitter Melon the cat says, paste a C/C++ program in the text box or upload
+one from your computer, and you can see LLVM compile it, meow!!
+</td></tr></table><p>
+END
+
+print $c->start_multipart_form( 'POST', $FORM_URL );
+
+my $source = $c->param('source');
+
+
+# Start the user out with something valid if no code.
+$source = $defaultsrc if (!defined($source));
+
+print '<table border="0"><tr><td>';
+
+print "Type your source code in below: (<a href='DemoInfo.html#hints'>hints and
+advice</a>)<br>\n";
+
+print $c->textarea(
+ -name => "source",
+ -rows => 16,
+ -columns => 60,
+ -default => $source
+), "<br>";
+
+print "Or upload a file: ";
+print $c->filefield( -name => 'uploaded_file', -default => '' );
+
+print "<p />\n";
+
+
+print '<p></td><td valign=top>';
+
+print "<center><h3>General Options</h3></center>";
+
+print "Source language: ",
+ $c->radio_group(
+ -name => 'language',
+ -values => [ 'C', 'C++' ],
+ -default => 'C'
+ ), "<p>";
+
+print $c->checkbox(
+ -name => 'linkopt',
+ -label => 'Run link-time optimizer',
+ -checked => 'checked'
+ ),' <a href="DemoInfo.html#lto">?</a><br>';
+
+print $c->checkbox(
+ -name => 'showstats',
+ -label => 'Show detailed pass statistics'
+ ), ' <a href="DemoInfo.html#stats">?</a><br>';
+
+print $c->checkbox(
+ -name => 'cxxdemangle',
+ -label => 'Demangle C++ names'
+ ),' <a href="DemoInfo.html#demangle">?</a><p>';
+
+
+print "<center><h3>Output Options</h3></center>";
+
+print $c->checkbox(
+ -name => 'showbcanalysis',
+ -label => 'Show detailed bytecode analysis'
+ ),' <a href="DemoInfo.html#bcanalyzer">?</a><br>';
+
+print $c->checkbox(
+ -name => 'showllvm2cpp',
+ -label => 'Show LLVM C++ API code'
+ ), ' <a href="DemoInfo.html#llvm2cpp">?</a>';
+
+print "</td></tr></table>";
+
+print "<center>", $c->submit(-value=> 'Compile Source Code'),
+ "</center>\n", $c->endform;
+
+print "\n<p>If you have questions about the LLVM code generated by the
+front-end, please check the <a href='/docs/FAQ.html#cfe_code'>FAQ</a> and
+the demo page <a href='DemoInfo.html#hints'>hints section</a>.
+</p>\n";
+
+$ENV{'PATH'} = ( join ( ':', @PREPENDPATHDIRS ) ) . ":" . $ENV{'PATH'};
+
+sub sanitychecktools {
+ my $sanitycheckfail = '';
+
+ # insert tool-specific sanity checks here
+ $sanitycheckfail .= ' llvm-dis'
+ if `llvm-dis --help 2>&1` !~ /ll disassembler/;
+
+ $sanitycheckfail .= ' llvm-gcc'
+ if ( `llvm-gcc --version 2>&1` !~ /Free Software Foundation/ );
+
+ $sanitycheckfail .= ' llvm-ld'
+ if `llvm-ld --help 2>&1` !~ /llvm linker/;
+
+ $sanitycheckfail .= ' llvm-bcanalyzer'
+ if `llvm-bcanalyzer --help 2>&1` !~ /bcanalyzer/;
+
+ barf(
+"<br/>The demo page is currently unavailable. [tools: ($sanitycheckfail ) failed sanity check]"
+ )
+ if $sanitycheckfail;
+}
+
+sanitychecktools();
+
+sub try_run {
+ my ( $program, $commandline, $outputFile ) = @_;
+ my $retcode = 0;
+
+ eval {
+ local $SIG{ALRM} = sub { die "timeout"; };
+ alarm $TIMEOUTAMOUNT;
+ $retcode = system($commandline);
+ alarm 0;
+ };
+ if ( $@ and $@ =~ /timeout/ ) {
+ barf("Program $program took too long, compile time limited for the web script, sorry!\n");
+ }
+ if ( -s $outputFile ) {
+ print scalar dumpFile( "Output from $program", $outputFile );
+ }
+ #print "<p>Finished dumping command output.</p>\n";
+ if ( WIFEXITED($retcode) && WEXITSTATUS($retcode) != 0 ) {
+ barf(
+"$program exited with an error. Please correct source and resubmit.<p>\n" .
+"Please note that this form only allows fully formed and correct source" .
+" files. It will not compile fragments of code.<p>"
+ );
+ }
+ if ( WIFSIGNALED($retcode) != 0 ) {
+ my $sig = WTERMSIG($retcode);
+ barf(
+ "Ouch, $program caught signal $sig. Sorry, better luck next time!\n"
+ );
+ }
+}
+
+my %suffixes = (
+ 'Java' => '.java',
+ 'JO99' => '.jo9',
+ 'C' => '.c',
+ 'C++' => '.cc',
+ 'Stacker' => '.st',
+ 'preprocessed C' => '.i',
+ 'preprocessed C++' => '.ii'
+);
+my %languages = (
+ '.jo9' => 'JO99',
+ '.java' => 'Java',
+ '.c' => 'C',
+ '.i' => 'preprocessed C',
+ '.ii' => 'preprocessed C++',
+ '.cc' => 'C++',
+ '.cpp' => 'C++',
+ '.st' => 'Stacker'
+);
+
+my $uploaded_file_name = $c->param('uploaded_file');
+if ($uploaded_file_name) {
+ if ($source) {
+ barf(
+"You must choose between uploading a file and typing code in. You can't do both at the same time."
+ );
+ }
+ $uploaded_file_name =~ s/^.*(\.[A-Za-z]+)$/$1/;
+ my $language = $languages{$uploaded_file_name};
+ $c->param( 'language', $language );
+
+ print "<p>Processing uploaded file. It looks like $language.</p>\n";
+ my $fh = $c->upload('uploaded_file');
+ if ( !$fh ) {
+ barf( "Error uploading file: " . $c->cgi_error );
+ }
+ while (<$fh>) {
+ $source .= $_;
+ }
+ close $fh;
+}
+
+if ($c->param('source')) {
+ print $c->hr;
+ my $extension = $suffixes{ $c->param('language') };
+ barf "Unknown language; can't compile\n" unless $extension;
+
+ # Add a newline to the source here to avoid a warning from gcc.
+ $source .= "\n";
+
+ # Avoid security hole due to #including bad stuff.
+ $source =~
+s@(\n)?#include.*[<"](.*\.\..*)[">].*\n@$1#error "invalid #include file $2 detected"\n@g;
+
+ my $inputFile = writeIntoFile( $extension, $source );
+ my $pid = $$;
+
+ my $bytecodeFile = getname(".bc");
+ my $outputFile = getname(".llvm-gcc.out");
+ my $timerFile = getname(".llvm-gcc.time");
+
+ my $stats = '';
+ if ( $extension eq ".st" ) {
+ $stats = "-stats -time-passes "
+ if ( $c->param('showstats') );
+ try_run( "llvm Stacker front-end (stkrc)",
+ "stkrc $stats -o $bytecodeFile $inputFile > $outputFile 2>&1",
+ $outputFile );
+ } else {
+ #$stats = "-Wa,--stats,--time-passes,--info-output-file=$timerFile"
+ $stats = "-ftime-report"
+ if ( $c->param('showstats') );
+ try_run( "llvm C/C++ front-end (llvm-gcc)",
+ "llvm-gcc -emit-llvm -W -Wall -O2 $stats -o $bytecodeFile -c $inputFile > $outputFile 2>&1",
+ $outputFile );
+ }
+
+ if ( $c->param('showstats') && -s $timerFile ) {
+ my ( $UnhilightedResult, $HtmlResult ) =
+ dumpFile( "Statistics for front-end compilation", $timerFile );
+ print "$HtmlResult\n";
+ }
+
+ if ( $c->param('linkopt') ) {
+ my $stats = '';
+ my $outputFile = getname(".gccld.out");
+ my $timerFile = getname(".gccld.time");
+ $stats = "--stats --time-passes --info-output-file=$timerFile"
+ if ( $c->param('showstats') );
+ my $tmpFile = getname(".bc");
+ try_run(
+ "optimizing linker (llvm-ld)",
+"llvm-ld $stats -o=$tmpFile $bytecodeFile > $outputFile 2>&1",
+ $outputFile
+ );
+ system("mv $tmpFile.bc $bytecodeFile");
+ system("rm $tmpFile");
+
+ if ( $c->param('showstats') && -s $timerFile ) {
+ my ( $UnhilightedResult, $HtmlResult ) =
+ dumpFile( "Statistics for optimizing linker", $timerFile );
+ print "$HtmlResult\n";
+ }
+ }
+
+ print " Bytecode size is ", -s $bytecodeFile, " bytes.\n";
+
+ my $disassemblyFile = getname(".ll");
+ try_run( "llvm-dis",
+ "llvm-dis -o=$disassemblyFile $bytecodeFile > $outputFile 2>&1",
+ $outputFile );
+
+ if ( $c->param('cxxdemangle') ) {
+ print " Demangling disassembler output.\n";
+ my $tmpFile = getname(".ll");
+ system("c++filt < $disassemblyFile > $tmpFile 2>&1");
+ system("mv $tmpFile $disassemblyFile");
+ }
+
+ my ( $UnhilightedResult, $HtmlResult );
+ if ( -s $disassemblyFile ) {
+ ( $UnhilightedResult, $HtmlResult ) =
+ dumpFile( "Output from LLVM disassembler", $disassemblyFile );
+ print syntaxHighlightLLVM($HtmlResult);
+ }
+ else {
+ print "<p>Hmm, that's weird, llvm-dis didn't produce any output.</p>\n";
+ }
+
+ if ( $c->param('showbcanalysis') ) {
+ my $analFile = getname(".bca");
+ try_run( "llvm-bcanalyzer", "llvm-bcanalyzer $bytecodeFile > $analFile 2>&1",
+ $analFile);
+ }
+ if ($c->param('showllvm2cpp') ) {
+ my $l2cppFile = getname(".l2cpp");
+ try_run("llvm2cpp","llvm2cpp $bytecodeFile -o $l2cppFile 2>&1",
+ $l2cppFile);
+ }
+
+ # Get the source presented by the user to CGI, convert newline sequences to simple \n.
+ my $actualsrc = $c->param('source');
+ $actualsrc =~ s/\015\012/\n/go;
+ # Don't log this or mail it if it is the default code.
+ if ($actualsrc ne $defaultsrc) {
+ addlog( $source, $pid, $UnhilightedResult );
+
+ my ( $ip, $host, $lg, $lines );
+ chomp( $lines = `wc -l < $inputFile` );
+ $lg = $c->param('language');
+ $ip = $c->remote_addr();
+ chomp( $host = `host $ip` ) if $ip;
+ mailto( $MAILADDR,
+ "--- Query: ---\nFrom: ($ip) $host\nInput: $lines lines of $lg\n"
+ . "C++ demangle = "
+ . ( $c->param('cxxdemangle') ? 1 : 0 )
+ . ", Link opt = "
+ . ( $c->param('linkopt') ? 1 : 0 ) . "\n\n"
+ . ", Show stats = "
+ . ( $c->param('showstats') ? 1 : 0 ) . "\n\n"
+ . "--- Source: ---\n$source\n"
+ . "--- Result: ---\n$UnhilightedResult\n" );
+ }
+ unlink( $inputFile, $bytecodeFile, $outputFile, $disassemblyFile );
+}
+
+print $c->hr, "<address>$CONTACT_ADDRESS</address>", $c->end_html;
+system("rm $ROOT/locked");
+exit 0;
generated by cgit v1.2.3 (git 2.46.2) at 2024-11-10 06:14:33 +0000