package DB;
-# Debugger for Perl 5.001m; perl5db.pl patch level:
+# Debugger for Perl 5.00x; perl5db.pl patch level:
-$header = 'perl5db.pl patch level 0.93';
+$VERSION = 0.95;
+$header = "perl5db.pl patch level $VERSION";
# Enhanced by ilya@math.ohio-state.edu (Ilya Zakharevich)
# Latest version available: ftp://ftp.math.ohio-state.edu/pub/users/ilya/perl
# information into db.out. (If you interrupt it, you would better
# reset LineInfo to something "interactive"!)
#
+# Changes: 0.95: v command shows versions.
+##################################################################
+# Changelog:
-local($^W) = 0;
+# A lot of things changed after 0.94. First of all, core now informs
+# debugger about entry into XSUBs, overloaded operators, tied operations,
+# BEGIN and END. Handy with `O f=2'.
+
+# This can make debugger a little bit too verbose, please be patient
+# and report your problems promptly.
+
+# Now the option frame has 3 values: 0,1,2.
+
+# Note that if DESTROY returns a reference to the object (or object),
+# the deletion of data may be postponed until the next function call,
+# due to the need to examine the return value.
+
+####################################################################
+
+# Needed for the statement after exec():
+
+BEGIN { $ini_warn = $^W; $^W = 0 } # Switch compilation warnings off until another BEGIN.
+local($^W) = 0; # Switch run-time warnings off during init.
warn ( # Do not ;-)
$dumpvar::hashDepth,
$dumpvar::arrayDepth,
$dumpvar::usageOnly,
@ARGS,
$Carp::CarpLevel,
+ $panic,
+ $first_time,
) if 0;
+# Command-line + PERLLIB:
+@ini_INC = @INC;
+
# $prevwarn = $prevdie = $prevbus = $prevsegv = ''; # Does not help?!
$trace = $signal = $single = 0; # Uninitialized warning suppression
# (local $^W cannot help - other packages!).
+$doret = -2;
+$frame = 0;
@stack = (0);
$option{PrintRet} = 1;
# These guys may be defined in $ENV{PERL5DB} :
$rl = 1 unless defined $rl;
+$warnLevel = 1 unless defined $warnLevel;
+$dieLevel = 1 unless defined $dieLevel;
+$signalLevel = 1 unless defined $signalLevel;
warnLevel($warnLevel);
dieLevel($dieLevel);
signalLevel($signalLevel);
parse_options($ENV{PERLDB_OPTS});
}
+if (exists $ENV{PERLDB_RESTART}) {
+ delete $ENV{PERLDB_RESTART};
+ # $restart = 1;
+ @hist = get_list('PERLDB_HIST');
+ my @visited = get_list("PERLDB_VISITED");
+ for (0 .. $#visited) {
+ %{$postponed{$visited[$_]}} = get_list("PERLDB_FILE_$_");
+ }
+ my %opt = get_list("PERLDB_OPT");
+ my ($opt,$val);
+ while (($opt,$val) = each %opt) {
+ $val =~ s/[\\\']/\\$1/g;
+ parse_options("$opt'$val'");
+ }
+ @INC = get_list("PERLDB_INC");
+ @ini_INC = @INC;
+}
+
if ($notty) {
$runnonstop = 1;
} else {
}
# Around a bug:
- if (defined $ENV{OS2_SHELL} and $emacs) { # In OS/2
+ if (defined $ENV{OS2_SHELL} and ($emacs or $ENV{WINDOWID})) { # In OS/2
$console = undef;
}
############################################################ Subroutines
-# The following code may be executed now, but gives FPE later:
-# BEGIN {warn 5}
-
sub DB {
- if ($runnonstop) { # Disable until signal
+ unless ($first_time++) { # Do when-running init
+ if ($runnonstop) { # Disable until signal
for ($i=0; $i <= $#stack; ) {
$stack[$i++] &= ~1;
}
- $single = $runnonstop = 0; # Once only
+ $single = 0;
return;
+ }
+ # Define a subroutine in which we will stop
+# eval <<'EOE';
+# sub at_end::db {"Debuggee terminating";}
+# END {
+# $DB::step = 1;
+# print $OUT "Debuggee terminating.\n";
+# &at_end::db;}
+# EOE
}
&save;
- if ($doret) {
- $doret = 0;
- if ($option{PrintRet}) {
- print $OUT "$retctx context return from $lastsub:",
- ($retctx eq 'list') ? "\n" : " " ;
- dumpit( ($retctx eq 'list') ? \@ret : $ret );
- }
- }
($package, $filename, $line) = caller;
+ $filename_ini = $filename;
$usercontext = '($@, $!, $,, $/, $\, $^W) = @saved;' .
"package $package;"; # this won't let them modify, alas
local(*dbline) = "::_<$filename";
+ install_breakpoints($filename) unless $visited{$filename}++;
$max = $#dbline;
if (($stop,$action) = split(/\0/,$dbline{$line})) {
if ($stop eq '1') {
$signal |= 1;
- } else {
+ } elsif ($stop) {
$evalarg = "\$DB::signal |= do {$stop;}"; &eval;
$dbline{$line} =~ s/;9($|\0)/$1/;
}
if ($single || $trace || $signal) {
$term || &setterm;
if ($emacs) {
- print $LINEINFO "\032\032$filename:$line:0\n";
+ $position = "\032\032$filename:$line:0\n";
+ print $LINEINFO $position;
} else {
$sub =~ s/\'/::/;
$prefix = $sub =~ /::/ ? "" : "${'package'}::";
$prefix .= "$sub($filename:";
$after = ($dbline[$line] =~ /\n$/ ? '' : "\n");
if (length($prefix) > 30) {
- print $LINEINFO "$prefix$line):\n$line:\t", $dbline[$line], $after;
+ $position = "$prefix$line):\n$line:\t$dbline[$line]$after";
+ print $LINEINFO $position;
$prefix = "";
$infix = ":\t";
} else {
$infix = "):\t";
- print $LINEINFO "$prefix$line$infix",$dbline[$line], $after;
+ $position = "$prefix$line$infix$dbline[$line]$after";
+ print $LINEINFO $position;
}
for ($i = $line + 1; $i <= $max && $dbline[$i] == 0; ++$i) { #{ vi
last if $dbline[$i] =~ /^\s*[\;\}\#\n]/;
$after = ($dbline[$i] =~ /\n$/ ? '' : "\n");
- print $LINEINFO "$prefix$i$infix", $dbline[$i], $after;
+ $incr_pos = "$prefix$i$infix$dbline[$i]$after";
+ print $LINEINFO $incr_pos;
+ $position .= $incr_pos;
}
}
}
$start = $line;
CMD:
while (($term || &setterm),
- defined ($cmd=$term->readline(" DB" . ('<' x $level) .
- ($#hist+1) . ('>' x $level) .
- " "))) {
- { # <-- Do we know what this brace is for?
+ defined ($cmd=&readline(" DB" . ('<' x $level) .
+ ($#hist+1) . ('>' x $level) .
+ " "))) {
+ #{ # <-- Do we know what this brace is for?
$single = 0;
$signal = 0;
$cmd =~ s/\\$/\n/ && do {
- $cmd .= $term->readline(" cont: ");
+ $cmd .= &readline(" cont: ");
redo CMD;
};
$cmd =~ /^q$/ && exit 0;
}
}
next CMD; };
+ $cmd =~ /^v$/ && do {
+ list_versions(); next CMD};
$cmd =~ s/^X\b/V $package/;
$cmd =~ /^V$/ && do {
$cmd = "V $package"; };
@vars = split(' ',$2);
do 'dumpvar.pl' unless defined &main::dumpvar;
if (defined &main::dumpvar) {
+ local $frame = 0;
+ local $doret = -2;
&main::dumpvar($packname,@vars);
} else {
print $OUT "dumpvar.pl not available.\n";
next CMD;
} elsif ($file ne $filename) {
*dbline = "::_<$file";
+ $visited{$file}++;
$max = $#dbline;
$filename = $file;
$start = 1;
$file = join(':', @pieces);
if ($file ne $filename) {
*dbline = "::_<$file";
+ $visited{$file}++;
$max = $#dbline;
$filename = $file;
}
print $OUT "Subroutine $subname not found.\n";
next CMD;
} };
+ $cmd =~ /^\.$/ && do {
+ $start = $line;
+ $filename = $filename_ini;
+ *dbline = "::_<$filename";
+ $max = $#dbline;
+ print $LINEINFO $position;
+ next CMD };
$cmd =~ /^w\b\s*(\d*)$/ && do {
$incr = $window - 1;
$start = $1 if $1;
$start -= $preview;
+ #print $OUT 'l ' . $start . '-' . ($start + $incr);
$cmd = 'l ' . $start . '-' . ($start + $incr); };
$cmd =~ /^-$/ && do {
$incr = $window - 1;
$incr = $2;
$incr = $window - 1 unless $incr;
$cmd = 'l ' . $start . '-' . ($start + $incr); };
- $cmd =~ /^l\b\s*(([\d\$\.]+)([-,]([\d\$\.]+))?)?/ && do {
- $end = (!$2) ? $max : ($4 ? $4 : $2);
+ $cmd =~ /^l\b\s*((-?[\d\$\.]+)([-,]([\d\$\.]+))?)?/ && do {
+ $end = (!defined $2) ? $max : ($4 ? $4 : $2);
$end = $max if $end > $max;
$i = $2;
$i = $line if $i eq '.';
$i = $end;
} else {
for (; $i <= $end; $i++) {
- print $OUT "$i:\t", $dbline[$i];
+ ($stop,$action) = split(/\0/, $dbline{$i});
+ $arrow = ($i==$line
+ and $filename eq $filename_ini)
+ ? '==>'
+ : ':' ;
+ $arrow .= 'b' if $stop;
+ $arrow .= 'a' if $action;
+ print $OUT "$i$arrow\t", $dbline[$i];
last if $signal;
}
}
if ($i) {
$filename = $file;
*dbline = "::_<$filename";
+ $visited{$filename}++;
$max = $#dbline;
++$i while $dbline[$i] == 0 && $i < $max;
$dbline{$i} =~ s/^[^\0]*/$cond/;
$single = 1;
$laststep = $cmd;
last CMD; };
- $cmd =~ /^c\b\s*(\d*)\s*$/ && do {
+ $cmd =~ /^c\b\s*([\w:]*)\s*$/ && do {
$i = $1;
+ if ($i =~ /\D/) { # subroutine name
+ ($file,$i) = ($sub{$i} =~ /^(.*):(.*)$/);
+ $i += 0;
+ if ($i) {
+ $filename = $file;
+ *dbline = "::_<$filename";
+ $visited{$filename}++;
+ $max = $#dbline;
+ ++$i while $dbline[$i] == 0 && $i < $max;
+ } else {
+ print $OUT "Subroutine $subname not found.\n";
+ next CMD;
+ }
+ }
if ($i) {
if ($dbline[$i] == 0) {
print $OUT "Line $i not breakable.\n";
last CMD; };
$cmd =~ /^r$/ && do {
$stack[$#stack] |= 1;
- $doret = 1;
+ $doret = $option{PrintRet} ? $#stack - 1 : -2;
+ last CMD; };
+ $cmd =~ /^R$/ && do {
+ print $OUT "Warning: a lot of settings and command-line options may be lost!\n";
+ my (@script, @flags, $cl);
+ push @flags, '-w' if $ini_warn;
+ # Put all the old includes at the start to get
+ # the same debugger.
+ for (@ini_INC) {
+ push @flags, '-I', $_;
+ }
+ # Arrange for setting the old INC:
+ set_list("PERLDB_INC", @ini_INC);
+ if ($0 eq '-e') {
+ for (1..$#{'::_<-e'}) { # The first line is PERL5DB
+ chomp ($cl = $ {'::_<-e'}[$_]);
+ push @script, '-e', $cl;
+ }
+ } else {
+ @script = $0;
+ }
+ set_list("PERLDB_HIST",
+ $term->Features->{getHistory}
+ ? $term->GetHistory : @hist);
+ my @visited = keys %visited;
+ set_list("PERLDB_VISITED", @visited);
+ set_list("PERLDB_OPT", %option);
+ for (0 .. $#visited) {
+ *dbline = "::_<$visited[$_]";
+ set_list("PERLDB_FILE_$_", %dbline);
+ }
+ $ENV{PERLDB_RESTART} = 1;
+ #print "$^X, '-d', @flags, @script, ($emacs ? '-emacs' : ()), @ARGS";
+ exec $^X, '-d', @flags, @script, ($emacs ? '-emacs' : ()), @ARGS;
+ print $OUT "exec failed: $!\n";
last CMD; };
$cmd =~ /^T$/ && do {
local($p,$f,$l,$s,$h,$a,$e,$r,@a,@sub);
$cmd = $hist[$i] . "\n";
print $OUT $cmd;
redo CMD; };
- $cmd =~ /^$sh$sh\s*/ && do {
- &system($');
+ $cmd =~ /^$sh$sh\s*([\x00-\xff]]*)/ && do {
+ &system($1);
next CMD; };
$cmd =~ /^$rc([^$rc].*)$/ && do {
$pat = "^$1";
$cmd =~ /^$sh$/ && do {
&system($ENV{SHELL}||"/bin/sh");
next CMD; };
- $cmd =~ /^$sh\s*/ && do {
- &system($ENV{SHELL}||"/bin/sh","-c",$');
+ $cmd =~ /^$sh\s*([\x00-\xff]*)/ && do {
+ &system($ENV{SHELL}||"/bin/sh","-c",$1);
next CMD; };
$cmd =~ /^H\b\s*(-(\d+))?/ && do {
$end = $2?($#hist-$2):0;
}
next CMD;
}
- $SIG{PIPE}= "DB::catch" if $pager =~ /^\|/
+ $SIG{PIPE}= \&DB::catch if $pager =~ /^\|/
&& "" eq $SIG{PIPE} || "DEFAULT" eq $SIG{PIPE};
$selected= select(OUT);
$|= 1;
$cmd =~ s/^s\s/\$DB::single = 1;\n/ && do {$laststep = 's'};
$cmd =~ s/^n\s/\$DB::single = 2;\n/ && do {$laststep = 'n'};
} # PIPE:
- } # <-- Do we know what this brace is for?
+ #} # <-- Do we know what this brace is for?
$evalarg = "\$^D = \$^D | \$DB::db_stop;\n$cmd"; &eval;
if ($onetimeDump) {
$onetimeDump = undef;
( $? & 127 ) ? " (SIG ".($?&127).")" : "", "\n" ) if $?;
open(OUT,">&STDOUT") || &warn("Can't restore DB::OUT");
open(STDOUT,">&SAVEOUT") || &warn("Can't restore STDOUT");
- $SIG{PIPE}= "DEFAULT" if $SIG{PIPE} eq "DB::catch";
+ $SIG{PIPE}= "DEFAULT" if $SIG{PIPE} eq \&DB::catch;
# Will stop ignoring SIGPIPE if done like nohup(1)
# does SIGINT but Perl doesn't give us a choice.
} else {
# BEGIN {warn 4}
sub sub {
- print $LINEINFO ' ' x $#stack, "entering $sub\n" if $frame;
+ my ($al, $ret, @ret) = "";
+ if ($sub =~ /::AUTOLOAD$/) {
+ $al = " for $ {$` . '::AUTOLOAD'}";
+ }
+ print $LINEINFO ' ' x $#stack, "entering $sub$al\n" if $frame;
push(@stack, $single);
$single &= 1;
$single |= 4 if $#stack == $deep;
if (wantarray) {
@ret = &$sub;
$single |= pop(@stack);
- $retctx = "list";
- $lastsub = $sub;
-print $LINEINFO ' ' x $#stack, "exited $sub\n" if $frame;
+ print ($OUT "list context return from $sub:\n"), dumpit( \@ret ),
+ $doret = -2 if $doret eq $#stack;
+ print $LINEINFO ' ' x $#stack, "exited $sub$al\n" if $frame > 1;
@ret;
} else {
$ret = &$sub;
$single |= pop(@stack);
- $retctx = "scalar";
- $lastsub = $sub;
-print $LINEINFO ' ' x $#stack, "exited $sub\n" if $frame;
+ print ($OUT "scalar context return from $sub: "), dumpit( $ret ),
+ $doret = -2 if $doret eq $#stack;
+ print $LINEINFO ' ' x $#stack, "exited $sub$al\n" if $frame > 1;
$ret;
}
}
}
}
+sub install_breakpoints {
+ my $filename = shift;
+ return unless exists $postponed{$filename};
+ my %break = %{$postponed{$filename}};
+ for (keys %break) {
+ my $i = $_;
+ #if (/\D/) { # Subroutine name
+ #}
+ $dbline{$i} = $break{$_}; # Cannot be done before the file is around
+ }
+}
+
sub dumpit {
local ($savout) = select($OUT);
- do 'dumpvar.pl' unless defined &main::dumpValue;
+ my $osingle = $single;
+ my $otrace = $trace;
+ $single = $trace = 0;
+ local $frame = 0;
+ local $doret = -2;
+ unless (defined &main::dumpValue) {
+ do 'dumpvar.pl';
+ }
if (defined &main::dumpValue) {
&main::dumpValue(shift);
} else {
print $OUT "dumpvar.pl not available.\n";
}
+ $single = $osingle;
+ $trace = $otrace;
select ($savout);
}
}
sub setterm {
- eval "require Term::ReadLine;" or die $@;
+ local $frame = 0;
+ local $doret = -2;
+ local @stack = @stack; # Prevent growth by failing `use'.
+ eval { require Term::ReadLine } or die $@;
if ($notty) {
if ($tty) {
open(IN,"<$tty") or die "Cannot open TTY `$TTY' for read: $!";
$LINEINFO = $OUT unless defined $LINEINFO;
$lineinfo = $console unless defined $lineinfo;
$term->MinLine(2);
+ if ($term->Features->{setHistory} and "@hist" ne "?") {
+ $term->SetHistory(@hist);
+ }
}
sub readline {
+ if (@typeahead) {
+ my $left = @typeahead;
+ my $got = shift @typeahead;
+ print $OUT "auto(-$left)", shift, $got, "\n";
+ $term->AddHistory($got)
+ if length($got) > 1 and defined $term->Features->{addHistory};
+ return $got;
+ }
local $frame = 0;
+ local $doret = -2;
$term->readline(@_);
}
} else {
$val = $option{$opt};
}
- $val =~ s/[\\\']/\\$&/g;
+ $val =~ s/([\\\'])/\\$1/g;
printf $OUT "%20s = '%s'\n", $opt, $val;
}
print $OUT "Unknown option `$opt'\n" unless $matches;
print $OUT "Ambiguous option `$opt'\n" if $matches > 1;
$option{$option} = $val if $matches == 1 and defined $val;
- eval "require '$optionRequire{$option}'"
+ eval "local \$frame = 0; local \$doret = -2;
+ require '$optionRequire{$option}'"
if $matches == 1 and defined $optionRequire{$option} and defined $val;
$ {$optionVars{$option}} = $val
if $matches == 1
}
}
+sub set_list {
+ my ($stem,@list) = @_;
+ my $val;
+ $ENV{"$ {stem}_n"} = @list;
+ for $i (0 .. $#list) {
+ $val = $list[$i];
+ $val =~ s/\\/\\\\/g;
+ $val =~ s/([\0-\37\177\200-\377])/"\\0x" . unpack('H2',$1)/eg;
+ $ENV{"$ {stem}_$i"} = $val;
+ }
+}
+
+sub get_list {
+ my $stem = shift;
+ my @list;
+ my $n = delete $ENV{"$ {stem}_n"};
+ my $val;
+ for $i (0 .. $n - 1) {
+ $val = delete $ENV{"$ {stem}_$i"};
+ $val =~ s/\\((\\)|0x(..))/ $2 ? $2 : pack('H2', $3) /ge;
+ push @list, $val;
+ }
+ @list;
+}
+
sub catch {
$signal = 1;
}
$lineinfo;
}
+sub list_versions {
+ my %version;
+ my $file;
+ for (keys %INC) {
+ $file = $_;
+ s,\.p[lm]$,,i ;
+ s,/,::,g ;
+ s/^perl5db$/DB/;
+ if (defined $ { $_ . '::VERSION' }) {
+ $version{$file} = "$ { $_ . '::VERSION' } from ";
+ }
+ $version{$file} .= $INC{$file};
+ }
+ do 'dumpvar.pl' unless defined &main::dumpValue;
+ if (defined &main::dumpValue) {
+ local $frame = 0;
+ &main::dumpValue(\%version);
+ } else {
+ print $OUT "dumpvar.pl not available.\n";
+ }
+}
+
sub sethelp {
$help = "
T Stack trace.
l List next window of lines.
- List previous window of lines.
w [line] List window around line.
+. Return to the executed line.
f filename Switch to viewing filename.
/pattern/ Search forwards for pattern; final / is optional.
?pattern? Search backwards for pattern; final ? is optional.
-L List all breakpoints and actions.
+L List all breakpoints and actions for the current file.
S [[!]pattern] List subroutine names [not] matching pattern.
t Toggle trace mode.
t expr Trace through execution of expr.
||dbcmd Same as |dbcmd but DB::OUT is temporarilly select()ed as well.
\= [alias value] Define a command alias, or list current aliases.
command Execute as a perl statement in current package.
+v Show versions of loaded modules.
+R Pure-man-restart of debugger, debugger state and command-line
+ options are lost.
h [db_command] Get help [on a specific debugger command], enter |h to page.
h h Summary of debugger commands.
q or ^D Quit.
$summary = <<"END_SUM";
List/search source lines: Control script execution:
l [ln|sub] List source code T Stack trace
- - List previous lines s [expr] Single step [in expr]
+ - or . List previous/current line s [expr] Single step [in expr]
w [line] List around line n [expr] Next, steps over subs
f filename View source in file <CR> Repeat last n or s
- /pattern/ Search forward r Return from subroutine
- ?pattern? Search backward c [line] Continue until line
+ /pattern/ ?patt? Search forw/backw r Return from subroutine
+ v Show versions of modules c [line] Continue until line
Debugger controls: L List break pts & actions
O [...] Set debugger options t [expr] Toggle trace [trace expr]
< command Command for before prompt b [ln] [c] Set breakpoint
= [a val] Define/list an alias a [ln] cmd Do cmd before line
h [db_cmd] Get help on command A Delete all actions
|[|]dbcmd Send output to pager $psh\[$psh\] syscmd Run cmd in a subprocess
- q or ^D Quit
+ q or ^D Quit R Attempt a restart
Data Examination: expr Execute perl code, also see: s,n,t expr
S [[!]pat] List subroutine names [not] matching pattern
V [Pk [Vars]] List Variables in Package. Vars can be ~pattern or !pattern.
# '); # Fix balance of Emacs parsing
}
-
sub diesignal {
- $SIG{'ABRT'} = DEFAULT;
+ local $frame = 0;
+ local $doret = -2;
+ $SIG{'ABRT'} = 'DEFAULT';
kill 'ABRT', $$ if $panic++;
print $DB::OUT "Got $_[0]!\n"; # in the case cannot continue
local $SIG{__WARN__} = '';
}
sub dbwarn {
+ local $frame = 0;
+ local $doret = -2;
local $SIG{__WARN__} = '';
- require Carp;
+ local $SIG{__DIE__} = '';
+ eval { require Carp }; # If error/warning during compilation,
+ # require may be broken.
+ warn(@_, "\nPossible unrecoverable error"), warn("\nTry to decrease warnLevel `O'ption!\n"), return
+ unless defined &Carp::longmess;
#&warn("Entering dbwarn\n");
my ($mysingle,$mytrace) = ($single,$trace);
$single = 0; $trace = 0;
}
sub dbdie {
+ local $frame = 0;
+ local $doret = -2;
local $SIG{__DIE__} = '';
local $SIG{__WARN__} = '';
my $i = 0; my $ineval = 0; my $sub;
#&warn("dieing quietly in dbdie\n") if $ineval and $dieLevel < 2;
die @_ if $ineval and $dieLevel < 2;
}
- require Carp;
+ eval { require Carp }; # If error/warning during compilation,
+ # require may be broken.
+ die(@_, "\nUnrecoverable error") unless defined &Carp::longmess;
# We do not want to debug this chunk (automatic disabling works
# inside DB::DB, but not in Carp).
my ($mysingle,$mytrace) = ($single,$trace);
die $mess;
}
-# sub diehard { # Always dump, useful if fatal is
-# # deeply in evals.
-# local $SIG{__DIE__} = '';
-# require Carp;
-# # We do not want to debug this (automatic disabling works inside DB::DB)
-# my ($mysingle,$mytrace) = ($single,$trace);
-# $single = 0; $trace = 0;
-# my $mess = Carp::longmess(@_);
-# ($single,$trace) = ($mysingle,$mytrace);
-# die $mess;
-# }
-
sub warnLevel {
if (@_) {
$prevwarn = $SIG{__WARN__} unless $warnLevel;
$warnLevel = shift;
if ($warnLevel) {
- $SIG{__WARN__} = 'DB::dbwarn';
+ $SIG{__WARN__} = \&DB::dbwarn;
} else {
$SIG{__WARN__} = $prevwarn;
}
$prevdie = $SIG{__DIE__} unless $dieLevel;
$dieLevel = shift;
if ($dieLevel) {
- $SIG{__DIE__} = 'DB::dbdie'; # if $dieLevel < 2;
- #$SIG{__DIE__} = 'DB::diehard' if $dieLevel >= 2;
+ $SIG{__DIE__} = \&DB::dbdie; # if $dieLevel < 2;
+ #$SIG{__DIE__} = \&DB::diehard if $dieLevel >= 2;
print $OUT "Stack dump during die enabled",
( $dieLevel == 1 ? " outside of evals" : ""), ".\n";
print $OUT "Dump printed too.\n" if $dieLevel > 2;
$prevbus = $SIG{BUS} unless $signalLevel;
$signalLevel = shift;
if ($signalLevel) {
- $SIG{SEGV} = 'DB::diesignal';
- $SIG{BUS} = 'DB::diesignal';
+ $SIG{SEGV} = \&DB::diesignal;
+ $SIG{BUS} = \&DB::diesignal;
} else {
$SIG{SEGV} = $prevsegv;
$SIG{BUS} = $prevbus;
$window = 10;
$preview = 3;
$sub = '';
- #$SIG{__WARN__} = "DB::dbwarn";
- #$SIG{__DIE__} = 'DB::dbdie';
- #$SIG{SEGV} = "DB::diesignal";
- #$SIG{BUS} = "DB::diesignal";
- $SIG{INT} = "DB::catch";
- #$SIG{FPE} = "DB::catch";
- #warn "SIGFPE installed";
- $warnLevel = 1 unless defined $warnLevel;
- $dieLevel = 1 unless defined $dieLevel;
- $signalLevel = 1 unless defined $signalLevel;
+ $SIG{INT} = \&DB::catch;
+ # This may be enabled to debug debugger:
+ #$warnLevel = 1 unless defined $warnLevel;
+ #$dieLevel = 1 unless defined $dieLevel;
+ #$signalLevel = 1 unless defined $signalLevel;
$db_stop = 0; # Compiler warning
$db_stop = 1 << 30;
$level = 0; # Level of recursive debugging
}
+BEGIN {$^W = $ini_warn;} # Switch warnings back
+
#use Carp; # This did break, left for debuggin
1;
projects / p5sagit/p5-mst-13.2.git / blobdiff