# (local $^W cannot help - other packages!).
$inhibit_exit = $option{PrintRet} = 1;
-@options = qw(hashDepth arrayDepth DumpDBFiles DumpPackages
+@options = qw(hashDepth arrayDepth DumpDBFiles DumpPackages DumpReused
compactDump veryCompact quote HighBit undefPrint
globPrint PrintRet UsageOnly frame AutoTrace
TTY noTTY ReadLine NonStop LineInfo maxTraceLen
recallCommand ShellBang pager tkRunning ornaments
- signalLevel warnLevel dieLevel inhibit_exit);
+ signalLevel warnLevel dieLevel inhibit_exit
+ ImmediateStop);
%optionVars = (
hashDepth => \$dumpvar::hashDepth,
arrayDepth => \$dumpvar::arrayDepth,
DumpDBFiles => \$dumpvar::dumpDBFiles,
DumpPackages => \$dumpvar::dumpPackages,
+ DumpReused => \$dumpvar::dumpReused,
HighBit => \$dumpvar::quoteHighBit,
undefPrint => \$dumpvar::printUndef,
globPrint => \$dumpvar::globPrint,
AutoTrace => \$trace,
inhibit_exit => \$inhibit_exit,
maxTraceLen => \$maxtrace,
+ ImmediateStop => \$ImmediateStop,
);
%optionAction = (
if (-e "/dev/tty") {
$console = "/dev/tty";
- } elsif (-e "con" or $^O eq 'MSWin32') {
+ } elsif ($^O eq 'dos' or -e "con" or $^O eq 'MSWin32') {
$console = "con";
} else {
$console = "sys\$command";
}
$single = 0;
# return; # Would not print trace!
+ } elsif ($ImmediateStop) {
+ $ImmediateStop = 0;
+ $signal = 1;
}
}
$runnonstop = 0 if $single or $signal; # Disable it if interactive.
&save;
($package, $filename, $line) = caller;
$filename_ini = $filename;
- $usercontext = '($@, $!, $,, $/, $\, $^W) = @saved;' .
+ $usercontext = '($@, $!, $^E, $,, $/, $\, $^W) = @saved;' .
"package $package;"; # this won't let them modify, alas
local(*dbline) = $main::{'_<' . $filename};
$max = $#dbline;
if ($val ne $old_watch[$n]) {
$signal = 1;
print $OUT <<EOP;
-Watchpoint $n: $to_watch[$n] changed:
-old value: $old_watch[$n]
-new value: $val
+Watchpoint $n:\t$to_watch[$n] changed:
+ old value:\t$old_watch[$n]
+ new value:\t$val
EOP
$old_watch[$n] = $val;
}
if ($emacs) {
$position = "\032\032$filename:$line:0\n";
print $LINEINFO $position;
+ } elsif ($package eq 'DB::fake') {
+ print_help(<<EOP);
+Debugged program terminated. Use B<q> to quit or B<R> to restart,
+ use B<O> I<inhibit_exit> to avoid stopping after program termination,
+ B<h q>, B<h R> or B<h O> to get additional info.
+EOP
+ $package = 'main';
+ $usercontext = '($@, $!, $,, $/, $\, $^W) = @saved;' .
+ "package $package;"; # this won't let them modify, alas
} else {
$sub =~ s/\'/::/;
$prefix = $sub =~ /::/ ? "" : "${'package'}::";
&eval;
}
} # if ($single || $signal)
- ($@, $!, $,, $/, $\, $^W) = @saved;
+ ($@, $!, $^E, $,, $/, $\, $^W) = @saved;
();
}
}
sub save {
- @saved = ($@, $!, $,, $/, $\, $^W);
+ @saved = ($@, $!, $^E, $,, $/, $\, $^W);
$, = ""; $/ = "\n"; $\ = ""; $^W = 0;
}
}
my $at = $@;
local $saved[0]; # Preserve the old value of $@
- eval "&DB::save";
+ eval { &DB::save };
if ($at) {
print $OUT $at;
} elsif ($onetimeDump eq 'dump') {
}
sub postponed {
+ if ($ImmediateStop) {
+ $ImmediateStop = 0;
+ $signal = 1;
+ }
return &postponed_sub
unless ref \$_[0] eq 'GLOB'; # A subroutine is compiled.
# Cannot be done before the file is compiled
# We save, change, then restore STDIN and STDOUT to avoid fork() since
# many non-Unix systems can do system() but have problems with fork().
open(SAVEIN,"<&STDIN") || &warn("Can't save STDIN");
- open(SAVEOUT,">&OUT") || &warn("Can't save STDOUT");
+ open(SAVEOUT,">&STDOUT") || &warn("Can't save STDOUT");
open(STDIN,"<&IN") || &warn("Can't redirect STDIN");
open(STDOUT,">&OUT") || &warn("Can't redirect STDOUT");
system(@_);
TTY($fork_TTY);
undef $fork_TTY;
} else {
- print $OUT "Forked, but do not know how to change a TTY.\n",
- "Define \$DB::fork_TTY or get_fork_TTY().\n";
+ print_help(<<EOP);
+I<#########> Forked, but do not know how to change a B<TTY>. I<#########>
+ Define B<\$DB::fork_TTY>
+ - or a function B<DB::get_fork_TTY()> which will set B<\$DB::fork_TTY>.
+ The value of B<\$DB::fork_TTY> should be the name of I<TTY> to use.
+ On I<UNIX>-like systems one can get the name of a I<TTY> for the given window
+ by typing B<tty>, and disconnect the I<shell> from I<TTY> by B<sleep 1000000>.
+EOP
}
}
I<tkRunning>: run Tk while prompting (with ReadLine);
I<signalLevel> I<warnLevel> I<dieLevel>: level of verbosity;
I<inhibit_exit> Allows stepping off the end of the script.
+ I<ImmediateStop> Debugger should stop as early as possible.
The following options affect what happens with B<V>, B<X>, and B<x> commands:
I<arrayDepth>, I<hashDepth>: print only first N elements ('' for all);
I<compactDump>, I<veryCompact>: change style of array and hash dump;
I<globPrint>: whether to print contents of globs;
I<DumpDBFiles>: dump arrays holding debugged files;
I<DumpPackages>: dump symbol tables of packages;
+ I<DumpReused>: dump contents of \"reused\" addresses;
I<quote>, I<HighBit>, I<undefPrint>: change style of string dump;
Option I<PrintRet> affects printing of return value after B<r> command,
I<frame> affects printing messages on entry and exit from subroutines.
and the following command-line options: I<-w>, I<-I>, I<-e>.
B<h> [I<db_command>] Get help [on a specific debugger command], enter B<|h> to page.
B<h h> Summary of debugger commands.
-B<q> or B<^D> Quit. Set \$DB::finished to 0 to debug global destruction.
+B<q> or B<^D> Quit. Set B<\$DB::finished = 0> to debug global destruction.
";
$summary = <<"END_SUM";