mirror of
https://github.com/pragma-/pbot.git
synced 2024-11-30 07:59:42 +01:00
38d109059a
Expand escape sequences Ignore various text related to no symbol table and to threads Automatically continue on breakpoints for functions prefixed with underscores (mostly because of C++)
513 lines
16 KiB
Perl
Executable File
513 lines
16 KiB
Perl
Executable File
#!/usr/bin/perl
|
|
|
|
use warnings;
|
|
use strict;
|
|
|
|
use IPC::Open2;
|
|
|
|
my $stdin_input = (join ' ', @ARGV) || "Lorem ipsum dolor sit amet.\n";
|
|
$stdin_input =~ s/\\n/\n/g;
|
|
$stdin_input =~ s/\\r/\r/g;
|
|
$stdin_input =~ s/\\t/\t/g;
|
|
open my $fh, '>', '.input' or die "Couldn't open .input: $!";
|
|
print $fh $stdin_input;
|
|
close $fh;
|
|
|
|
my $debug = 0;
|
|
|
|
#my $opening = "<";
|
|
#my $closing = ">\n";
|
|
|
|
my $opening = "\n";
|
|
my $closing = "\n\n";
|
|
|
|
my $watching = 0;
|
|
my $got_output = 0;
|
|
my $local_vars = "";
|
|
|
|
sub flushall;
|
|
sub gdb;
|
|
|
|
sub execute {
|
|
my ($cmdline) = @_;
|
|
my ($ret, $result);
|
|
|
|
my ($out, $in);
|
|
open2($out, $in, "$cmdline 2>&1");
|
|
|
|
while(my $line = <$out>) {
|
|
chomp $line;
|
|
print "--- got: [$line]\n" if $debug >= 1;
|
|
|
|
my $ignore_response = 0;
|
|
|
|
next if not length $line;
|
|
<$out> and next if $line =~ m/^\(gdb\) No line \d+ in/;
|
|
next if $line =~ m/^\(gdb\) No symbol table/;
|
|
next if $line =~ m/^\[New Thread/;
|
|
next if $line =~ m/^\(gdb\) Continuing/;
|
|
next if $line =~ m/^\(gdb\) \$\d+ = "Ok\."/;
|
|
next if $line =~ m/^(\(gdb\) )*Breakpoint \d+ at 0x/;
|
|
next if $line =~ m/^\(gdb\) Breakpoint \d+ at 0x/;
|
|
next if $line =~ m/^\(gdb\) Note: breakpoint \d+ also set/;
|
|
next if $line =~ m/^(\(gdb\) )*Starting program/;
|
|
next if $line =~ m/PRETTY_FUNCTION__ =/;
|
|
next if $line =~ m/libc_start_main/;
|
|
next if $line =~ m/Thread debugging using libthread_db enabled/;
|
|
next if $line =~ m/Using host libthread_db library/;
|
|
|
|
if($line =~ m/^\d+: (.*? = .*)/) {
|
|
print "$opening$1$closing";
|
|
$got_output = 1;
|
|
next;
|
|
}
|
|
|
|
if($line =~ m/^Reading symbols from.*done\.$/) {
|
|
gdb $in, "break gdb\n";
|
|
|
|
gdb $in, "list main,9001\n";
|
|
gdb $in, "print \"Ok.\"\n";
|
|
my $break = 0;
|
|
my $bracket = 0;
|
|
my $main_ended = 0;
|
|
while(my $line = <$out>) {
|
|
chomp $line;
|
|
print "list got: [$line]\n" if $debug >= 4;
|
|
my ($line_number) = $line =~ m/^(\d+)/g;
|
|
while($line =~ m/(.)/g) {
|
|
my $char = $1;
|
|
if($char eq '{') {
|
|
$bracket++;
|
|
} elsif($char eq '}') {
|
|
$bracket--;
|
|
|
|
if($bracket == 0 and not $main_ended) {
|
|
$break = $line_number - 1;
|
|
$main_ended = 1;
|
|
last;
|
|
}
|
|
}
|
|
}
|
|
|
|
last if $line =~ m/^\(gdb\) \$\d+ = "Ok."/;
|
|
}
|
|
|
|
gdb $in, "break $break\n";
|
|
gdb $in, "set width 0\n";
|
|
gdb $in, "set height 0\n";
|
|
gdb $in, "run < .input\n";
|
|
next;
|
|
}
|
|
|
|
if($line =~ m/^Breakpoint \d+, main/) {
|
|
my $line = <$out>;
|
|
print "== got: $line\n" if $debug >= 5;
|
|
if($line =~ m/^\d+\s+return.*?;\s*$/ or $line =~ m/^\d+\s+}\s*$/) {
|
|
if($got_output == 0) {
|
|
print "no output, checking locals\n" if $debug >= 5;
|
|
gdb $in, "print \"Go.\"\ninfo locals\nprint \"Ok.\"\n";
|
|
|
|
while(my $peep = <$out>) {
|
|
chomp $peep;
|
|
last if $peep =~ m/\(gdb\) \$\d+ = "Go."/;
|
|
|
|
# fix this
|
|
$peep =~ s/^\d+: (.*?) =/$1 =/;
|
|
print "$opening$peep$closing";
|
|
$got_output = 1;
|
|
}
|
|
|
|
my $result = "";
|
|
my $vars = "";
|
|
my $varsep = "";
|
|
|
|
while(my $line = <$out>) {
|
|
chomp $line;
|
|
print "got: [$line]\n" if $debug >= 5;
|
|
last if $line =~ m/\(gdb\) \$\d+ = "Ok."/;
|
|
if($line =~ m/([^=]+)=\s+(.*)/) {
|
|
$vars .= "$varsep$1= $2";
|
|
$varsep = "; ";
|
|
}
|
|
}
|
|
|
|
$result =~ s/^\s+//;
|
|
$result =~ s/\s+$//;
|
|
|
|
$vars =~ s/\(gdb\)\s*//g;
|
|
$local_vars = $opening . "no output: $vars$closing" if length $vars;
|
|
}
|
|
}
|
|
gdb $in, "cont\n";
|
|
next;
|
|
}
|
|
|
|
if($line =~ m/Breakpoint \d+, gdb/) {
|
|
gdb $in, "up\n";
|
|
$line = <$out>;
|
|
print "ignored $line\n" if $debug >= 2;
|
|
$line = <$out>;
|
|
print "ignored $line\n" if $debug >= 2;
|
|
next;
|
|
}
|
|
|
|
if($line =~ m/^Breakpoint \d+, _(.*?) at/) {
|
|
<$out>;
|
|
gdb $in, "cont\n";
|
|
next;
|
|
}
|
|
|
|
if($line =~ m/^Breakpoint \d+, (.*?) at/) {
|
|
my $func = $1;
|
|
my $direction = "entered";
|
|
my $return_value = "";
|
|
my $nextline = <$out>;
|
|
chomp $nextline;
|
|
|
|
print "got bt nextline: <$nextline>\n" if $debug >= 5;
|
|
|
|
if($nextline =~ m/^\d+\s+}$/) {
|
|
$direction = "leaving";
|
|
|
|
gdb $in, "finish\n";
|
|
while(my $retval = <$out>) {
|
|
chomp $retval;
|
|
print "got retval line: <$retval>\n" if $debug >= 5;
|
|
$retval =~ s/^\(gdb\)\s+//;
|
|
|
|
if($retval =~ m/^Run till exit/) {
|
|
<$out>;
|
|
<$out>;
|
|
next;
|
|
}
|
|
|
|
if($retval =~ m/Value returned is \$\d+ = (.*)/) {
|
|
$return_value = ", returned $1";
|
|
last;
|
|
}
|
|
|
|
next if not length $retval;
|
|
next if $retval =~ m/^\$\d+ = 0/;
|
|
|
|
print "$retval\n";
|
|
$got_output = 1;
|
|
}
|
|
}
|
|
|
|
flushall $in, $out;
|
|
|
|
my $indent = 0;
|
|
gdb $in, "bt\n";
|
|
while(my $bt = <$out>) {
|
|
chomp $bt;
|
|
print "got bt: <$bt>\n" if $debug >= 5;
|
|
$bt =~ s/^\(gdb\) //;
|
|
if($bt =~ m/^#(\d+) .* main .* at prog/) {
|
|
$indent = $1;
|
|
last;
|
|
}
|
|
}
|
|
|
|
$indent++ if $direction eq "leaving";
|
|
|
|
print "$opening$direction [$indent]", ' ' x $indent, "$func$return_value$closing";
|
|
gdb $in, "cont\n";
|
|
next;
|
|
}
|
|
|
|
if($line =~ m/^\d+\s+.*\btrace\((.*)\)/) {
|
|
$line = "1 gdb(\"break $1\");";
|
|
}
|
|
|
|
if($line =~ m/^\d+\s+.*\bwatch\((.*)\)/) {
|
|
$line = "1 gdb(\"watch $1\");";
|
|
}
|
|
|
|
if($line =~ m/^\d+\s+.*\bdump\((.*)\)/) {
|
|
$line = "1 gdb(\"print $1\");";
|
|
}
|
|
|
|
if($line =~ m/^\d+\s+.*\bprint\((.*)\)/) {
|
|
$line = "1 gdb(\"print $1\");";
|
|
}
|
|
|
|
if($line =~ m/^\d+\s+.*\bptype\((.*)\)/) {
|
|
$line = "1 gdb(\"ptype $1\");";
|
|
}
|
|
|
|
if($line =~ m/^\d+\s+.*\bwhatis\((.*)\)/) {
|
|
$line = "1 gdb(\"whatis $1\");";
|
|
}
|
|
|
|
if($line =~ m/^\d+\s+.*\bgdb\("(.*)"\)/) {
|
|
my $command = $1;
|
|
my ($cmd, $args) = split / /, $command, 2;
|
|
$args = "" if not defined $args;
|
|
|
|
print "got command [$command]\n" if $debug >= 10;
|
|
|
|
flushall $in, $out;
|
|
|
|
if($cmd eq "break") {
|
|
$ignore_response = 1;
|
|
|
|
gdb $in, "list $args,9001\n";
|
|
gdb $in, "print \"Ok.\"\n";
|
|
my $break = 0;
|
|
my $bracket = 0;
|
|
my $func_ended = 0;
|
|
while(my $line = <$out>) {
|
|
chomp $line;
|
|
print "list break got: [$line]\n" if $debug >= 4;
|
|
my ($line_number) = $line =~ m/^(\d+)/g;
|
|
while($line =~ m/(.)/g) {
|
|
my $char = $1;
|
|
if($char eq '{') {
|
|
$bracket++;
|
|
} elsif($char eq '}') {
|
|
$bracket--;
|
|
|
|
if($bracket == 0 and not $func_ended) {
|
|
gdb $in, "break $line_number\n";
|
|
print "func ended, breaking at $line_number\n" if $debug >= 5;
|
|
$func_ended = 1;
|
|
last;
|
|
}
|
|
}
|
|
}
|
|
|
|
last if $line =~ m/^\(gdb\) \$\d+ = "Ok."/;
|
|
}
|
|
}
|
|
|
|
if($cmd eq "watch") {
|
|
gdb $in, "display $args\n";
|
|
<$out>;
|
|
$watching++;
|
|
$ignore_response = 1;
|
|
}
|
|
|
|
my $final_closing = "";
|
|
gdb $in, "$command\nprint \"Ok.\"\n";
|
|
while(my $next_line = <$out>) {
|
|
chomp $next_line;
|
|
print "nextline: $next_line\n" if $debug >= 1;
|
|
|
|
print $final_closing and last if $next_line =~ m/\$\d+ = "Ok."/;
|
|
$next_line =~ s/^\(gdb\)\s*\(gdb\)\s+\$\d+ = "Ok."//;
|
|
$next_line =~ s/^\(gdb\)\s+\$\d+//;
|
|
$next_line =~ s/^\(gdb\)\s+type//;
|
|
$next_line =~ s/^\(gdb\)\s*//;
|
|
|
|
next if not length $next_line;
|
|
|
|
if(not $ignore_response) {
|
|
if($next_line =~ m/=/) { # ptype
|
|
$got_output = 1;
|
|
print "$opening$args$next_line";
|
|
$final_closing = $closing;
|
|
} else {
|
|
$got_output = 1;
|
|
$next_line =~ s/^\s+//;
|
|
print "\n$next_line";
|
|
}
|
|
}
|
|
}
|
|
|
|
gdb $in, "cont\n";
|
|
next;
|
|
}
|
|
|
|
if($line =~ m/^Watchpoint \d+: (.*)/) {
|
|
my $var = $1;
|
|
|
|
my $ignore = <$out>;
|
|
print "ignored $ignore\n" if $debug >= 5;
|
|
my $old = <$out>;
|
|
my $new = <$out>;
|
|
$ignore = <$out>;
|
|
print "ignored $ignore\n" if $debug >= 5;
|
|
$ignore = <$out>;
|
|
print "ignored $ignore\n" if $debug >= 5;
|
|
|
|
my ($val1) = $old =~ m/Old value = (.*)/;
|
|
my ($val2) = $new =~ m/New value = (.*)/;
|
|
|
|
$got_output = 1;
|
|
print "$opening$var = $val2$closing";
|
|
gdb $in, "cont\n";
|
|
next;
|
|
}
|
|
|
|
if($line =~ m/^Hardware watchpoint \d+: (.*)/) {
|
|
my $var = $1;
|
|
|
|
my $ignore = <$out>;
|
|
my $old = <$out>;
|
|
my $new = <$out>;
|
|
$ignore = <$out>;
|
|
$ignore = <$out>;
|
|
|
|
my ($val1) = $old =~ m/Old value = (.*)/;
|
|
my ($val2) = $new =~ m/New value = (.*)/;
|
|
|
|
$got_output = 1;
|
|
my $output = "$opening$var changed: $val1 => $val2$closing";
|
|
flushall $in, $out;
|
|
print $output;
|
|
gdb $in, "cont\n";
|
|
next;
|
|
}
|
|
|
|
if($line =~ m/^Watchpoint \d+ deleted/) {
|
|
my $ignore = <$out>;
|
|
print "ignored $ignore\n" if $debug >= 5;
|
|
gdb $in, "cont\n";
|
|
next;
|
|
}
|
|
|
|
if($line =~ m/^Program exited/) {
|
|
print " $local_vars\n" if length $local_vars and not $got_output;
|
|
exit 0;
|
|
}
|
|
|
|
if($line =~ s/\[Inferior .* exited with code (\d+)\]//) {
|
|
print "$line\n" if length $line;
|
|
print $opening . "Exit " . (oct $1) . $closing;
|
|
print " $local_vars\n" if length $local_vars and not $got_output;
|
|
exit 0;
|
|
}
|
|
|
|
if($line =~ s/\[Inferior .* exited normally\]//) {
|
|
print "$line\n" if length $line;
|
|
$got_output = 1 if length $line;
|
|
print " $local_vars\n" if length $local_vars and not $got_output;
|
|
exit 0;
|
|
}
|
|
|
|
if($line =~ m/Program terminated with signal SIGKILL/) {
|
|
print "[Killed]\n";
|
|
return 0;
|
|
}
|
|
|
|
if($line =~ m/Program received signal SIGTRAP/) {
|
|
my $output = "";
|
|
my $line = <$out>;
|
|
print "ignored $line\n" if $debug >= 5;
|
|
$line = <$out>;
|
|
print "ignored $line\n" if $debug >= 5;
|
|
for(my $i = 0; $i < $watching; $i++) {
|
|
$line = <$out>;
|
|
chomp $line;
|
|
$line =~ s/^\d+:\s//;
|
|
$got_output = 1;
|
|
$output .= "$opening$line$closing";
|
|
}
|
|
flushall $in, $out;
|
|
print $output;
|
|
gdb $in, "cont\n";
|
|
next;
|
|
}
|
|
|
|
if($line =~ m/Program received signal/) {
|
|
my $result = "";
|
|
my $vars = "";
|
|
my $varsep = "";
|
|
|
|
$line =~ s/\.$//;
|
|
$got_output = 1;
|
|
print "$line ";
|
|
|
|
while(my $line = <$out>) {
|
|
chomp $line;
|
|
$line =~ s/^\(gdb\)\s+//;
|
|
$line =~ s/main \(.*?\)/main ()/g;
|
|
|
|
print "signal got: [$line]\n" if $debug >= 5;
|
|
|
|
next if $line =~ m/__PRETTY_FUNCTION__ =/;
|
|
|
|
if($line =~ s/^(#\d+\s+)?0x[0-9A-Fa-f]+\s//) {
|
|
$line =~ s/\s+at .*:\d+//;
|
|
$line =~ s/\s+from \/lib.*//;
|
|
|
|
if($line =~ s/^\s*in\s+//) {
|
|
if(not length $result) {
|
|
$result .= "in $line ";
|
|
} else {
|
|
$result .= "called by $line ";
|
|
}
|
|
gdb $in, "info locals\n";
|
|
} else {
|
|
$result = "in $line from ";
|
|
gdb $in, "info locals\n";
|
|
}
|
|
}
|
|
elsif($line =~ m/^No symbol table info available/) {
|
|
gdb $in, "up\n";
|
|
}
|
|
elsif($line =~ s/^\d+\s+//) {
|
|
next if $line =~ /No such file/;
|
|
|
|
$result .= "at statement: $line ";
|
|
gdb $in, "up\n";
|
|
}
|
|
elsif($line =~ m/([^=]+)=\s+(.*)/) {
|
|
$vars .= "$varsep$1= $2";
|
|
$varsep = "; ";
|
|
}
|
|
elsif($line =~ m/^Initial frame selected; you cannot go up/) {
|
|
last;
|
|
}
|
|
}
|
|
|
|
$result =~ s/^\s+//;
|
|
$result =~ s/\s+$//;
|
|
$result =~ s/in main \(\) //;
|
|
|
|
$vars = " <local variables: $vars>" if length $vars;
|
|
|
|
print "$result$vars\n";
|
|
exit 0;
|
|
}
|
|
|
|
if($line =~ s/^\(gdb\)\s*//) {
|
|
$got_output = 1;
|
|
print "$opening$line$closing";
|
|
next;
|
|
}
|
|
|
|
next if $line =~ m/^\d+\s+void gdb\(\) {}/;
|
|
|
|
next if not length $line;
|
|
|
|
$got_output = 1;
|
|
print "$line\n";
|
|
}
|
|
}
|
|
|
|
sub gdb {
|
|
my ($in, $command) = @_;
|
|
|
|
chomp $command;
|
|
print "+++ gdb command [$command]\n" if $debug >= 2;
|
|
print $in "$command\n";
|
|
}
|
|
|
|
sub flushall {
|
|
my ($in, $out) = @_;
|
|
|
|
gdb $in, "call fflush(0)\nprint \"Ok.\"\n";
|
|
while(my $line = <$out>) {
|
|
chomp $line;
|
|
$line =~ s/^\(gdb\)\s*//;
|
|
$line =~ s/\$\d+ = 0$//;
|
|
last if $line =~ m/\$\d+ = "Ok."/;
|
|
next unless length $line;
|
|
$got_output = 1;
|
|
print "$line\n";
|
|
}
|
|
}
|
|
|
|
execute("LIBC_FATAL_STDERR=1 MALLOC_CHECK_=1 gdb -silent -q -nx ./prog 2>&1");
|