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pbot-vm: improve exit-code handling
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parent
164ecc45a7
commit
3e2204a6b0
@ -441,8 +441,6 @@ sub cmd_print_last_statement($context, $args) {
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}
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sub handle_program_exit($context, $data) {
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my $reason = $data->{reason};
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if (not -s OUTPUT_FILENAME) { # -s gets size of file
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my $locals = locals_to_string($context->{locals_end});
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@ -451,6 +449,10 @@ sub handle_program_exit($context, $data) {
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}
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}
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if (exists $data->{'exit-code'} && $data->{'exit-code'} != 0) {
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$context->{'exit-code'} = oct $data->{'exit-code'};
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}
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_exit($context);
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}
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@ -541,7 +543,7 @@ sub handle_exec_async_output($context, $output) {
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if ($reason eq 'breakpoint-hit') {
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handle_breakpoint_hit($context, $output);
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}
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elsif ($reason eq 'exited-normally') {
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elsif ($reason eq 'exited-normally' || $reason eq 'exited') {
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handle_program_exit($context, $output);
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}
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elsif ($reason eq 'signal-received') {
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@ -592,9 +594,9 @@ sub _exit($context) {
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my $output = do { local $/; <$fh> };
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close $fh;
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print STDOUT "$output\n";
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print STDOUT "$output";
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exit;
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exit ($context->{'exit-code'} // 0);
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}
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# send text to OUTPUT_FILENAME file
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@ -150,9 +150,11 @@ sub run_command($command, $mod) {
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if (not $mod->{error}) {
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$mod->{output} .= "Success (no output).\n";
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} else {
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$mod->{output} .= "Exit code $mod->{error}.\n";
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$mod->{output} .= "Exit $mod->{error}.\n";
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}
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}
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} elsif ($mod->{error}) {
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$mod->{output} .= " [Exit $mod->{error}]";
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}
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return $mod->{output};
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@ -10,108 +10,110 @@ package _c_base;
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use parent '_default';
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sub preprocess {
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my $self = shift;
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my $self = shift;
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my $input = $self->{input} // '';
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my $input = $self->{input} // '';
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open(my $fh, '>:encoding(UTF-8)', '.input');
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print $fh "$input\n";
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close $fh;
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my @cmd = $self->split_line($self->{cmdline}, strip_quotes => 1, preserve_escapes => 0);
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if ($self->{code} =~ m/print_last_statement\(.*\);$/m) {
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# remove print_last_statement wrapper in order to get warnings/errors from last statement line
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my $code = $self->{code};
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$code =~ s/print_last_statement\((.*)\);$/$1;/mg;
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open(my $fh, '>:encoding(UTF-8)', $self->{sourcefile}) or die $!;
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print $fh $code . "\n";
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open(my $fh, '>:encoding(UTF-8)', '.input');
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print $fh "$input\n";
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close $fh;
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print STDERR "Executing [$self->{cmdline}] without print_last_statement\n";
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my ($retval, $stdout, $stderr) = $self->execute(60, undef, @cmd);
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$self->{output} = $stderr;
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$self->{output} .= ' ' if length $self->{output};
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$self->{output} .= $stdout;
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$self->{error} = $retval;
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my @cmd = $self->split_line($self->{cmdline}, strip_quotes => 1, preserve_escapes => 0);
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# now compile with print_last_statement intact, ignoring compile results
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if (not $self->{error}) {
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open(my $fh, '>:encoding(UTF-8)', $self->{sourcefile}) or die $!;
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print $fh $self->{code} . "\n";
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close $fh;
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if ($self->{code} =~ m/print_last_statement\(.*\);$/m) {
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# remove print_last_statement wrapper in order to get warnings/errors from last statement line
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my $code = $self->{code};
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$code =~ s/print_last_statement\((.*)\);$/$1;/mg;
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open(my $fh, '>:encoding(UTF-8)', $self->{sourcefile}) or die $!;
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print $fh $code . "\n";
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close $fh;
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print STDERR "Executing [$self->{cmdline}] with print_last_statement\n";
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$self->execute(60, undef, @cmd);
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print STDERR "Executing [$self->{cmdline}] without print_last_statement\n";
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my ($retval, $stdout, $stderr) = $self->execute(60, undef, @cmd);
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$self->{output} = $stderr;
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$self->{output} .= ' ' if length $self->{output};
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$self->{output} .= $stdout;
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$self->{error} = $retval;
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# now compile with print_last_statement intact, ignoring compile results
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if (not $self->{error}) {
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open(my $fh, '>:encoding(UTF-8)', $self->{sourcefile}) or die $!;
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print $fh $self->{code} . "\n";
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close $fh;
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print STDERR "Executing [$self->{cmdline}] with print_last_statement\n";
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$self->execute(60, undef, @cmd);
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}
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} else {
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open(my $fh, '>:encoding(UTF-8)', $self->{sourcefile}) or die $!;
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print $fh $self->{code} . "\n";
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close $fh;
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print STDERR "Executing [$self->{cmdline}]\n";
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my ($retval, $stdout, $stderr) = $self->execute(60, undef, @cmd);
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$self->{output} = $stderr;
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$self->{output} .= ' ' if length $self->{output};
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$self->{output} .= $stdout;
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$self->{error} = $retval;
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}
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} else {
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open(my $fh, '>:encoding(UTF-8)', $self->{sourcefile}) or die $!;
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print $fh $self->{code} . "\n";
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close $fh;
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print STDERR "Executing [$self->{cmdline}]\n";
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my ($retval, $stdout, $stderr) = $self->execute(60, undef, @cmd);
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$self->{output} = $stderr;
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$self->{output} .= ' ' if length $self->{output};
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$self->{output} .= $stdout;
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$self->{error} = $retval;
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}
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if ($self->{cmdline} =~ m/--(?:version|analyze)/) {
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$self->{done} = 1;
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}
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if ($self->{cmdline} =~ m/--(?:version|analyze)/) {
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$self->{done} = 1;
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}
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}
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sub postprocess {
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my $self = shift;
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my $self = shift;
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$self->SUPER::postprocess;
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$self->SUPER::postprocess;
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# no errors compiling, but if output contains something, it must be diagnostic messages
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if(length $self->{output}) {
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$self->{output} =~ s/^\s+//;
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$self->{output} =~ s/\s+$//;
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$self->{output} = "[$self->{output}]\n";
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}
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# no errors compiling, but if output contains something, it must be diagnostic messages
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if (length $self->{output}) {
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$self->{output} =~ s/^\s+//;
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$self->{output} =~ s/\s+$//;
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$self->{output} = "[$self->{output}]\n";
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}
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print STDERR "Executing gdb\n";
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my ($exitval, $stdout, $stderr);
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print STDERR "Executing gdb\n";
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my ($exitval, $stdout, $stderr);
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my $ulimits = "ulimit -f 2000; ulimit -t 8; ulimit -u 200";
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my $ulimits = "ulimit -f 2000; ulimit -t 8; ulimit -u 200";
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my @args = $self->split_line($self->{arguments}, strip_quotes => 1, preserve_escapes => 0);
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my @args = $self->split_line($self->{arguments}, strip_quotes => 1, preserve_escapes => 0);
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my $quoted_args = '';
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my $quoted_args = '';
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foreach my $arg (@args) {
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$arg =~ s/'/'"'"'/g;
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$quoted_args .= "'$arg' ";
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}
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foreach my $arg (@args) {
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$arg =~ s/'/'"'"'/g;
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$quoted_args .= "'$arg' ";
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}
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if ($self->{cmdline} =~ /-fsanitize=(?:[^ ]+,)?address/) {
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# leak sanitizer doesn't work under ptrace/gdb
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# ASAN_OPTIONS=strict_string_checks=1:detect_stack_use_after_return=1:check_initialization_order=1:strict_init_order=1
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($exitval, $stdout, $stderr) = $self->execute(60, "$ulimits; ./prog $quoted_args\n", '/bin/sh');
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} else {
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my $input = "$ulimits; guest-gdb ./prog $quoted_args";
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($exitval, $stdout, $stderr) = $self->execute(60, $input, '/bin/sh');
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}
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if ($self->{cmdline} =~ /-fsanitize=(?:[^ ]+,)?address/) {
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# leak sanitizer doesn't work under ptrace/gdb
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# ASAN_OPTIONS=strict_string_checks=1:detect_stack_use_after_return=1:check_initialization_order=1:strict_init_order=1
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($exitval, $stdout, $stderr) = $self->execute(60, "$ulimits; ./prog $quoted_args\n", '/bin/sh');
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} else {
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my $input = "$ulimits; guest-gdb ./prog $quoted_args";
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($exitval, $stdout, $stderr) = $self->execute(60, $input, '/bin/sh');
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}
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my $result = $stderr;
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$result .= ' ' if length $result;
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$result .= $stdout;
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$self->{error} = $exitval;
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if (not length $result) {
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$self->{no_output} = 1;
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} elsif ($self->{code} =~ m/print_last_statement\(.*\);$/m
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&& ($result =~ m/A syntax error in expression/ || $result =~ m/No symbol.*in current context/ || $result =~ m/has unknown return type; cast the call to its declared return/ || $result =~ m/Can't take address of.*which isn't an lvalue/)) {
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# strip print_last_statement and rebuild/re-run
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$self->{code} =~ s/print_last_statement\((.*)\);/$1;/mg;
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$self->preprocess;
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$self->postprocess;
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} else {
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$self->{output} .= $result;
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}
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my $result = $stderr;
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$result .= ' ' if length $result;
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$result .= $stdout;
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if (not length $result) {
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$self->{no_output} = 1;
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} elsif ($self->{code} =~ m/print_last_statement\(.*\);$/m
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&& ($result =~ m/A syntax error in expression/ || $result =~ m/No symbol.*in current context/ || $result =~ m/has unknown return type; cast the call to its declared return/ || $result =~ m/Can't take address of.*which isn't an lvalue/)) {
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# strip print_last_statement and rebuild/re-run
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$self->{code} =~ s/print_last_statement\((.*)\);/$1;/mg;
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$self->preprocess;
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$self->postprocess;
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} else {
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$self->{output} .= $result;
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}
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}
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1;
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