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1 | package DB; |
2 | |
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3 | # Debugger for Perl 5.00x; perl5db.pl patch level: |
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4 | |
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5 | $VERSION = 1.04041; |
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6 | $header = "perl5db.pl version $VERSION"; |
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7 | |
8 | # Enhanced by ilya@math.ohio-state.edu (Ilya Zakharevich) |
9 | # Latest version available: ftp://ftp.math.ohio-state.edu/pub/users/ilya/perl |
10 | |
11 | # modified Perl debugger, to be run from Emacs in perldb-mode |
12 | # Ray Lischner (uunet!mntgfx!lisch) as of 5 Nov 1990 |
13 | # Johan Vromans -- upgrade to 4.0 pl 10 |
14 | # Ilya Zakharevich -- patches after 5.001 (and some before ;-) |
15 | |
16 | # |
17 | # This file is automatically included if you do perl -d. |
18 | # It's probably not useful to include this yourself. |
19 | # |
36477c24 |
20 | # Perl supplies the values for %sub. It effectively inserts |
21 | # a &DB'DB(); in front of every place that can have a |
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22 | # breakpoint. Instead of a subroutine call it calls &DB::sub with |
23 | # $DB::sub being the called subroutine. It also inserts a BEGIN |
24 | # {require 'perl5db.pl'} before the first line. |
25 | # |
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26 | # After each `require'd file is compiled, but before it is executed, a |
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27 | # call to DB::postponed($main::{'_<'.$filename}) is emulated. Here the |
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28 | # $filename is the expanded name of the `require'd file (as found as |
29 | # value of %INC). |
30 | # |
31 | # Additional services from Perl interpreter: |
32 | # |
33 | # if caller() is called from the package DB, it provides some |
34 | # additional data. |
35 | # |
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36 | # The array @{$main::{'_<'.$filename} is the line-by-line contents of |
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37 | # $filename. |
38 | # |
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39 | # The hash %{'_<'.$filename} contains breakpoints and action (it is |
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40 | # keyed by line number), and individual entries are settable (as |
41 | # opposed to the whole hash). Only true/false is important to the |
42 | # interpreter, though the values used by perl5db.pl have the form |
43 | # "$break_condition\0$action". Values are magical in numeric context. |
44 | # |
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45 | # The scalar ${'_<'.$filename} contains "_<$filename". |
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46 | # |
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47 | # Note that no subroutine call is possible until &DB::sub is defined |
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48 | # (for subroutines defined outside of the package DB). In fact the same is |
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49 | # true if $deep is not defined. |
50 | # |
51 | # $Log: perldb.pl,v $ |
52 | |
53 | # |
54 | # At start reads $rcfile that may set important options. This file |
55 | # may define a subroutine &afterinit that will be executed after the |
56 | # debugger is initialized. |
57 | # |
58 | # After $rcfile is read reads environment variable PERLDB_OPTS and parses |
59 | # it as a rest of `O ...' line in debugger prompt. |
60 | # |
61 | # The options that can be specified only at startup: |
62 | # [To set in $rcfile, call &parse_options("optionName=new_value").] |
63 | # |
64 | # TTY - the TTY to use for debugging i/o. |
65 | # |
66 | # noTTY - if set, goes in NonStop mode. On interrupt if TTY is not set |
67 | # uses the value of noTTY or "/tmp/perldbtty$$" to find TTY using |
68 | # Term::Rendezvous. Current variant is to have the name of TTY in this |
69 | # file. |
70 | # |
71 | # ReadLine - If false, dummy ReadLine is used, so you can debug |
72 | # ReadLine applications. |
73 | # |
74 | # NonStop - if true, no i/o is performed until interrupt. |
75 | # |
76 | # LineInfo - file or pipe to print line number info to. If it is a |
77 | # pipe, a short "emacs like" message is used. |
78 | # |
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79 | # RemotePort - host:port to connect to on remote host for remote debugging. |
80 | # |
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81 | # Example $rcfile: (delete leading hashes!) |
82 | # |
83 | # &parse_options("NonStop=1 LineInfo=db.out"); |
84 | # sub afterinit { $trace = 1; } |
85 | # |
86 | # The script will run without human intervention, putting trace |
87 | # information into db.out. (If you interrupt it, you would better |
88 | # reset LineInfo to something "interactive"!) |
89 | # |
ee971a18 |
90 | ################################################################## |
91 | # Changelog: |
92 | |
93 | # A lot of things changed after 0.94. First of all, core now informs |
94 | # debugger about entry into XSUBs, overloaded operators, tied operations, |
95 | # BEGIN and END. Handy with `O f=2'. |
96 | |
97 | # This can make debugger a little bit too verbose, please be patient |
98 | # and report your problems promptly. |
99 | |
100 | # Now the option frame has 3 values: 0,1,2. |
101 | |
102 | # Note that if DESTROY returns a reference to the object (or object), |
103 | # the deletion of data may be postponed until the next function call, |
104 | # due to the need to examine the return value. |
105 | |
55497cff |
106 | # Changes: 0.95: `v' command shows versions. |
107 | # Changes: 0.96: `v' command shows version of readline. |
108 | # primitive completion works (dynamic variables, subs for `b' and `l', |
109 | # options). Can `p %var' |
110 | # Better help (`h <' now works). New commands <<, >>, {, {{. |
111 | # {dump|print}_trace() coded (to be able to do it from <<cmd). |
112 | # `c sub' documented. |
113 | # At last enough magic combined to stop after the end of debuggee. |
114 | # !! should work now (thanks to Emacs bracket matching an extra |
115 | # `]' in a regexp is caught). |
116 | # `L', `D' and `A' span files now (as documented). |
117 | # Breakpoints in `require'd code are possible (used in `R'). |
118 | # Some additional words on internal work of debugger. |
119 | # `b load filename' implemented. |
120 | # `b postpone subr' implemented. |
121 | # now only `q' exits debugger (overwriteable on $inhibit_exit). |
122 | # When restarting debugger breakpoints/actions persist. |
123 | # Buglet: When restarting debugger only one breakpoint/action per |
124 | # autoloaded function persists. |
36477c24 |
125 | # Changes: 0.97: NonStop will not stop in at_exit(). |
126 | # Option AutoTrace implemented. |
127 | # Trace printed differently if frames are printed too. |
1d06cb2d |
128 | # new `inhibitExit' option. |
129 | # printing of a very long statement interruptible. |
130 | # Changes: 0.98: New command `m' for printing possible methods |
131 | # 'l -' is a synonim for `-'. |
132 | # Cosmetic bugs in printing stack trace. |
133 | # `frame' & 8 to print "expanded args" in stack trace. |
134 | # Can list/break in imported subs. |
135 | # new `maxTraceLen' option. |
136 | # frame & 4 and frame & 8 granted. |
137 | # new command `m' |
138 | # nonstoppable lines do not have `:' near the line number. |
139 | # `b compile subname' implemented. |
140 | # Will not use $` any more. |
141 | # `-' behaves sane now. |
477ea2b1 |
142 | # Changes: 0.99: Completion for `f', `m'. |
143 | # `m' will remove duplicate names instead of duplicate functions. |
144 | # `b load' strips trailing whitespace. |
145 | # completion ignores leading `|'; takes into account current package |
146 | # when completing a subroutine name (same for `l'). |
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147 | |
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148 | #################################################################### |
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149 | |
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150 | # Needed for the statement after exec(): |
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151 | |
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152 | BEGIN { $ini_warn = $^W; $^W = 0 } # Switch compilation warnings off until another BEGIN. |
153 | local($^W) = 0; # Switch run-time warnings off during init. |
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154 | warn ( # Do not ;-) |
155 | $dumpvar::hashDepth, |
156 | $dumpvar::arrayDepth, |
157 | $dumpvar::dumpDBFiles, |
158 | $dumpvar::dumpPackages, |
159 | $dumpvar::quoteHighBit, |
160 | $dumpvar::printUndef, |
161 | $dumpvar::globPrint, |
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162 | $dumpvar::usageOnly, |
163 | @ARGS, |
164 | $Carp::CarpLevel, |
54d04a52 |
165 | $panic, |
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166 | $second_time, |
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167 | ) if 0; |
168 | |
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169 | # Command-line + PERLLIB: |
170 | @ini_INC = @INC; |
171 | |
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172 | # $prevwarn = $prevdie = $prevbus = $prevsegv = ''; # Does not help?! |
173 | |
174 | $trace = $signal = $single = 0; # Uninitialized warning suppression |
175 | # (local $^W cannot help - other packages!). |
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176 | $inhibit_exit = $option{PrintRet} = 1; |
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177 | |
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178 | @options = qw(hashDepth arrayDepth DumpDBFiles DumpPackages DumpReused |
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179 | compactDump veryCompact quote HighBit undefPrint |
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180 | globPrint PrintRet UsageOnly frame AutoTrace |
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181 | TTY noTTY ReadLine NonStop LineInfo maxTraceLen |
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182 | recallCommand ShellBang pager tkRunning ornaments |
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183 | signalLevel warnLevel dieLevel inhibit_exit |
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184 | ImmediateStop bareStringify |
185 | RemotePort); |
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186 | |
187 | %optionVars = ( |
188 | hashDepth => \$dumpvar::hashDepth, |
189 | arrayDepth => \$dumpvar::arrayDepth, |
190 | DumpDBFiles => \$dumpvar::dumpDBFiles, |
191 | DumpPackages => \$dumpvar::dumpPackages, |
22fae026 |
192 | DumpReused => \$dumpvar::dumpReused, |
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193 | HighBit => \$dumpvar::quoteHighBit, |
194 | undefPrint => \$dumpvar::printUndef, |
195 | globPrint => \$dumpvar::globPrint, |
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196 | UsageOnly => \$dumpvar::usageOnly, |
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197 | bareStringify => \$dumpvar::bareStringify, |
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198 | frame => \$frame, |
199 | AutoTrace => \$trace, |
200 | inhibit_exit => \$inhibit_exit, |
1d06cb2d |
201 | maxTraceLen => \$maxtrace, |
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202 | ImmediateStop => \$ImmediateStop, |
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203 | RemotePort => \$remoteport, |
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204 | ); |
205 | |
206 | %optionAction = ( |
207 | compactDump => \&dumpvar::compactDump, |
208 | veryCompact => \&dumpvar::veryCompact, |
209 | quote => \&dumpvar::quote, |
210 | TTY => \&TTY, |
211 | noTTY => \&noTTY, |
212 | ReadLine => \&ReadLine, |
213 | NonStop => \&NonStop, |
214 | LineInfo => \&LineInfo, |
215 | recallCommand => \&recallCommand, |
216 | ShellBang => \&shellBang, |
217 | pager => \&pager, |
218 | signalLevel => \&signalLevel, |
219 | warnLevel => \&warnLevel, |
220 | dieLevel => \&dieLevel, |
a737e074 |
221 | tkRunning => \&tkRunning, |
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222 | ornaments => \&ornaments, |
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223 | RemotePort => \&RemotePort, |
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224 | ); |
225 | |
226 | %optionRequire = ( |
227 | compactDump => 'dumpvar.pl', |
228 | veryCompact => 'dumpvar.pl', |
229 | quote => 'dumpvar.pl', |
230 | ); |
231 | |
232 | # These guys may be defined in $ENV{PERL5DB} : |
233 | $rl = 1 unless defined $rl; |
ee971a18 |
234 | $warnLevel = 1 unless defined $warnLevel; |
235 | $dieLevel = 1 unless defined $dieLevel; |
236 | $signalLevel = 1 unless defined $signalLevel; |
55497cff |
237 | $pre = [] unless defined $pre; |
238 | $post = [] unless defined $post; |
239 | $pretype = [] unless defined $pretype; |
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240 | warnLevel($warnLevel); |
241 | dieLevel($dieLevel); |
242 | signalLevel($signalLevel); |
65c9c81d |
243 | &pager((defined($ENV{PAGER}) |
244 | ? $ENV{PAGER} |
245 | : ($^O eq 'os2' |
246 | ? 'cmd /c more' |
247 | : 'more'))) unless defined $pager; |
d338d6fe |
248 | &recallCommand("!") unless defined $prc; |
249 | &shellBang("!") unless defined $psh; |
1d06cb2d |
250 | $maxtrace = 400 unless defined $maxtrace; |
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251 | |
252 | if (-e "/dev/tty") { |
253 | $rcfile=".perldb"; |
254 | } else { |
255 | $rcfile="perldb.ini"; |
256 | } |
257 | |
258 | if (-f $rcfile) { |
259 | do "./$rcfile"; |
260 | } elsif (defined $ENV{LOGDIR} and -f "$ENV{LOGDIR}/$rcfile") { |
261 | do "$ENV{LOGDIR}/$rcfile"; |
262 | } elsif (defined $ENV{HOME} and -f "$ENV{HOME}/$rcfile") { |
263 | do "$ENV{HOME}/$rcfile"; |
264 | } |
265 | |
266 | if (defined $ENV{PERLDB_OPTS}) { |
267 | parse_options($ENV{PERLDB_OPTS}); |
268 | } |
269 | |
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270 | if (exists $ENV{PERLDB_RESTART}) { |
271 | delete $ENV{PERLDB_RESTART}; |
272 | # $restart = 1; |
273 | @hist = get_list('PERLDB_HIST'); |
55497cff |
274 | %break_on_load = get_list("PERLDB_ON_LOAD"); |
275 | %postponed = get_list("PERLDB_POSTPONE"); |
276 | my @had_breakpoints= get_list("PERLDB_VISITED"); |
277 | for (0 .. $#had_breakpoints) { |
0c395bd7 |
278 | my %pf = get_list("PERLDB_FILE_$_"); |
279 | $postponed_file{$had_breakpoints[$_]} = \%pf if %pf; |
54d04a52 |
280 | } |
281 | my %opt = get_list("PERLDB_OPT"); |
282 | my ($opt,$val); |
283 | while (($opt,$val) = each %opt) { |
284 | $val =~ s/[\\\']/\\$1/g; |
285 | parse_options("$opt'$val'"); |
286 | } |
287 | @INC = get_list("PERLDB_INC"); |
288 | @ini_INC = @INC; |
43aed9ee |
289 | $pretype = [get_list("PERLDB_PRETYPE")]; |
290 | $pre = [get_list("PERLDB_PRE")]; |
291 | $post = [get_list("PERLDB_POST")]; |
292 | @typeahead = get_list("PERLDB_TYPEAHEAD", @typeahead); |
54d04a52 |
293 | } |
294 | |
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295 | if ($notty) { |
296 | $runnonstop = 1; |
297 | } else { |
298 | # Is Perl being run from Emacs? |
299 | $emacs = ((defined $main::ARGV[0]) and ($main::ARGV[0] eq '-emacs')); |
300 | $rl = 0, shift(@main::ARGV) if $emacs; |
301 | |
302 | #require Term::ReadLine; |
303 | |
8736538c |
304 | if ($^O =~ /cygwin/) { |
305 | # /dev/tty is binary. use stdin for textmode |
306 | undef $console; |
307 | } elsif (-e "/dev/tty") { |
d338d6fe |
308 | $console = "/dev/tty"; |
39e571d4 |
309 | } elsif ($^O eq 'dos' or -e "con" or $^O eq 'MSWin32') { |
d338d6fe |
310 | $console = "con"; |
311 | } else { |
312 | $console = "sys\$command"; |
313 | } |
314 | |
96774cc9 |
315 | if (($^O eq 'MSWin32') and ($emacs or defined $ENV{EMACS})) { |
316 | $console = undef; |
317 | } |
318 | |
d338d6fe |
319 | # Around a bug: |
ee971a18 |
320 | if (defined $ENV{OS2_SHELL} and ($emacs or $ENV{WINDOWID})) { # In OS/2 |
d338d6fe |
321 | $console = undef; |
322 | } |
323 | |
4d2c4e07 |
324 | if ($^O eq 'epoc') { |
325 | $console = undef; |
326 | } |
327 | |
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328 | $console = $tty if defined $tty; |
329 | |
1d7c1841 |
330 | if (defined $remoteport) { |
331 | require IO::Socket; |
332 | $OUT = new IO::Socket::INET( Timeout => '10', |
333 | PeerAddr => $remoteport, |
334 | Proto => 'tcp', |
335 | ); |
336 | if (!$OUT) { die "Could not create socket to connect to remote host."; } |
337 | $IN = $OUT; |
d338d6fe |
338 | } |
1d7c1841 |
339 | else { |
340 | if (defined $console) { |
341 | open(IN,"+<$console") || open(IN,"<$console") || open(IN,"<&STDIN"); |
342 | open(OUT,"+>$console") || open(OUT,">$console") || open(OUT,">&STDERR") |
343 | || open(OUT,">&STDOUT"); # so we don't dongle stdout |
344 | } else { |
345 | open(IN,"<&STDIN"); |
346 | open(OUT,">&STDERR") || open(OUT,">&STDOUT"); # so we don't dongle stdout |
347 | $console = 'STDIN/OUT'; |
348 | } |
349 | # so open("|more") can read from STDOUT and so we don't dingle stdin |
350 | $IN = \*IN; |
d338d6fe |
351 | |
1d7c1841 |
352 | $OUT = \*OUT; |
353 | } |
d338d6fe |
354 | select($OUT); |
355 | $| = 1; # for DB::OUT |
356 | select(STDOUT); |
357 | |
358 | $LINEINFO = $OUT unless defined $LINEINFO; |
359 | $lineinfo = $console unless defined $lineinfo; |
360 | |
361 | $| = 1; # for real STDOUT |
362 | |
363 | $header =~ s/.Header: ([^,]+),v(\s+\S+\s+\S+).*$/$1$2/; |
364 | unless ($runnonstop) { |
365 | print $OUT "\nLoading DB routines from $header\n"; |
366 | print $OUT ("Emacs support ", |
367 | $emacs ? "enabled" : "available", |
368 | ".\n"); |
d9f67849 |
369 | print $OUT "\nEnter h or `h h' for help, run `perldoc perldebug' for more help.\n\n"; |
d338d6fe |
370 | } |
371 | } |
372 | |
373 | @ARGS = @ARGV; |
374 | for (@args) { |
375 | s/\'/\\\'/g; |
376 | s/(.*)/'$1'/ unless /^-?[\d.]+$/; |
377 | } |
378 | |
379 | if (defined &afterinit) { # May be defined in $rcfile |
380 | &afterinit(); |
381 | } |
382 | |
43aed9ee |
383 | $I_m_init = 1; |
384 | |
d338d6fe |
385 | ############################################################ Subroutines |
386 | |
d338d6fe |
387 | sub DB { |
36477c24 |
388 | # _After_ the perl program is compiled, $single is set to 1: |
389 | if ($single and not $second_time++) { |
390 | if ($runnonstop) { # Disable until signal |
f8b5b99c |
391 | for ($i=0; $i <= $stack_depth; ) { |
d338d6fe |
392 | $stack[$i++] &= ~1; |
393 | } |
54d04a52 |
394 | $single = 0; |
36477c24 |
395 | # return; # Would not print trace! |
3aefca04 |
396 | } elsif ($ImmediateStop) { |
397 | $ImmediateStop = 0; |
398 | $signal = 1; |
54d04a52 |
399 | } |
d338d6fe |
400 | } |
36477c24 |
401 | $runnonstop = 0 if $single or $signal; # Disable it if interactive. |
d338d6fe |
402 | &save; |
d338d6fe |
403 | ($package, $filename, $line) = caller; |
54d04a52 |
404 | $filename_ini = $filename; |
22fae026 |
405 | $usercontext = '($@, $!, $^E, $,, $/, $\, $^W) = @saved;' . |
d338d6fe |
406 | "package $package;"; # this won't let them modify, alas |
8ebc5c01 |
407 | local(*dbline) = $main::{'_<' . $filename}; |
d338d6fe |
408 | $max = $#dbline; |
409 | if (($stop,$action) = split(/\0/,$dbline{$line})) { |
410 | if ($stop eq '1') { |
411 | $signal |= 1; |
54d04a52 |
412 | } elsif ($stop) { |
3f521411 |
413 | $evalarg = "\$DB::signal |= 1 if do {$stop}"; &eval; |
d338d6fe |
414 | $dbline{$line} =~ s/;9($|\0)/$1/; |
415 | } |
416 | } |
36477c24 |
417 | my $was_signal = $signal; |
6027b9a3 |
418 | if ($trace & 2) { |
419 | for (my $n = 0; $n <= $#to_watch; $n++) { |
420 | $evalarg = $to_watch[$n]; |
ed0d1bf7 |
421 | local $onetimeDump; # Do not output results |
6027b9a3 |
422 | my ($val) = &eval; # Fix context (&eval is doing array)? |
423 | $val = ( (defined $val) ? "'$val'" : 'undef' ); |
424 | if ($val ne $old_watch[$n]) { |
425 | $signal = 1; |
426 | print $OUT <<EOP; |
405ff068 |
427 | Watchpoint $n:\t$to_watch[$n] changed: |
428 | old value:\t$old_watch[$n] |
429 | new value:\t$val |
6027b9a3 |
430 | EOP |
431 | $old_watch[$n] = $val; |
432 | } |
433 | } |
434 | } |
435 | if ($trace & 4) { # User-installed watch |
436 | return if watchfunction($package, $filename, $line) |
437 | and not $single and not $was_signal and not ($trace & ~4); |
438 | } |
439 | $was_signal = $signal; |
36477c24 |
440 | $signal = 0; |
6027b9a3 |
441 | if ($single || ($trace & 1) || $was_signal) { |
d338d6fe |
442 | if ($emacs) { |
54d04a52 |
443 | $position = "\032\032$filename:$line:0\n"; |
444 | print $LINEINFO $position; |
405ff068 |
445 | } elsif ($package eq 'DB::fake') { |
65c9c81d |
446 | $term || &setterm; |
405ff068 |
447 | print_help(<<EOP); |
448 | Debugged program terminated. Use B<q> to quit or B<R> to restart, |
449 | use B<O> I<inhibit_exit> to avoid stopping after program termination, |
450 | B<h q>, B<h R> or B<h O> to get additional info. |
451 | EOP |
452 | $package = 'main'; |
1d7c1841 |
453 | $usercontext = '($@, $!, $^E, $,, $/, $\, $^W) = @saved;' . |
405ff068 |
454 | "package $package;"; # this won't let them modify, alas |
d338d6fe |
455 | } else { |
456 | $sub =~ s/\'/::/; |
457 | $prefix = $sub =~ /::/ ? "" : "${'package'}::"; |
458 | $prefix .= "$sub($filename:"; |
459 | $after = ($dbline[$line] =~ /\n$/ ? '' : "\n"); |
460 | if (length($prefix) > 30) { |
54d04a52 |
461 | $position = "$prefix$line):\n$line:\t$dbline[$line]$after"; |
d338d6fe |
462 | $prefix = ""; |
463 | $infix = ":\t"; |
464 | } else { |
465 | $infix = "):\t"; |
54d04a52 |
466 | $position = "$prefix$line$infix$dbline[$line]$after"; |
36477c24 |
467 | } |
468 | if ($frame) { |
f8b5b99c |
469 | print $LINEINFO ' ' x $stack_depth, "$line:\t$dbline[$line]$after"; |
36477c24 |
470 | } else { |
54d04a52 |
471 | print $LINEINFO $position; |
d338d6fe |
472 | } |
473 | for ($i = $line + 1; $i <= $max && $dbline[$i] == 0; ++$i) { #{ vi |
474 | last if $dbline[$i] =~ /^\s*[\;\}\#\n]/; |
36477c24 |
475 | last if $signal; |
d338d6fe |
476 | $after = ($dbline[$i] =~ /\n$/ ? '' : "\n"); |
54d04a52 |
477 | $incr_pos = "$prefix$i$infix$dbline[$i]$after"; |
54d04a52 |
478 | $position .= $incr_pos; |
36477c24 |
479 | if ($frame) { |
f8b5b99c |
480 | print $LINEINFO ' ' x $stack_depth, "$i:\t$dbline[$i]$after"; |
36477c24 |
481 | } else { |
482 | print $LINEINFO $incr_pos; |
483 | } |
d338d6fe |
484 | } |
485 | } |
486 | } |
487 | $evalarg = $action, &eval if $action; |
36477c24 |
488 | if ($single || $was_signal) { |
d338d6fe |
489 | local $level = $level + 1; |
e63173ce |
490 | foreach $evalarg (@$pre) { |
491 | &eval; |
492 | } |
f8b5b99c |
493 | print $OUT $stack_depth . " levels deep in subroutine calls!\n" |
d338d6fe |
494 | if $single & 4; |
495 | $start = $line; |
1d06cb2d |
496 | $incr = -1; # for backward motion. |
6657d1ba |
497 | @typeahead = (@$pretype, @typeahead); |
d338d6fe |
498 | CMD: |
499 | while (($term || &setterm), |
f36776d9 |
500 | ($term_pid == $$ or &resetterm), |
54d04a52 |
501 | defined ($cmd=&readline(" DB" . ('<' x $level) . |
502 | ($#hist+1) . ('>' x $level) . |
503 | " "))) { |
d338d6fe |
504 | $single = 0; |
505 | $signal = 0; |
506 | $cmd =~ s/\\$/\n/ && do { |
54d04a52 |
507 | $cmd .= &readline(" cont: "); |
d338d6fe |
508 | redo CMD; |
509 | }; |
d338d6fe |
510 | $cmd =~ /^$/ && ($cmd = $laststep); |
511 | push(@hist,$cmd) if length($cmd) > 1; |
512 | PIPE: { |
513 | ($i) = split(/\s+/,$cmd); |
514 | eval "\$cmd =~ $alias{$i}", print $OUT $@ if $alias{$i}; |
477ea2b1 |
515 | $cmd =~ /^q$/ && ($exiting = 1) && exit 0; |
d338d6fe |
516 | $cmd =~ /^h$/ && do { |
6027b9a3 |
517 | print_help($help); |
d338d6fe |
518 | next CMD; }; |
519 | $cmd =~ /^h\s+h$/ && do { |
6027b9a3 |
520 | print_help($summary); |
d338d6fe |
521 | next CMD; }; |
522 | $cmd =~ /^h\s+(\S)$/ && do { |
523 | my $asked = "\Q$1"; |
6027b9a3 |
524 | if ($help =~ /^(?:[IB]<)$asked/m) { |
525 | while ($help =~ /^((?:[IB]<)$asked([\s\S]*?)\n)(?!\s)/mg) { |
526 | print_help($1); |
55497cff |
527 | } |
d338d6fe |
528 | } else { |
6027b9a3 |
529 | print_help("B<$asked> is not a debugger command.\n"); |
d338d6fe |
530 | } |
531 | next CMD; }; |
532 | $cmd =~ /^t$/ && do { |
6027b9a3 |
533 | ($trace & 1) ? ($trace &= ~1) : ($trace |= 1); |
534 | print $OUT "Trace = " . |
535 | (($trace & 1) ? "on" : "off" ) . "\n"; |
d338d6fe |
536 | next CMD; }; |
537 | $cmd =~ /^S(\s+(!)?(.+))?$/ && do { |
538 | $Srev = defined $2; $Spatt = $3; $Snocheck = ! defined $1; |
539 | foreach $subname (sort(keys %sub)) { |
540 | if ($Snocheck or $Srev^($subname =~ /$Spatt/)) { |
541 | print $OUT $subname,"\n"; |
542 | } |
543 | } |
544 | next CMD; }; |
ee971a18 |
545 | $cmd =~ /^v$/ && do { |
546 | list_versions(); next CMD}; |
d338d6fe |
547 | $cmd =~ s/^X\b/V $package/; |
548 | $cmd =~ /^V$/ && do { |
549 | $cmd = "V $package"; }; |
550 | $cmd =~ /^V\b\s*(\S+)\s*(.*)/ && do { |
551 | local ($savout) = select($OUT); |
552 | $packname = $1; |
553 | @vars = split(' ',$2); |
554 | do 'dumpvar.pl' unless defined &main::dumpvar; |
555 | if (defined &main::dumpvar) { |
54d04a52 |
556 | local $frame = 0; |
ee971a18 |
557 | local $doret = -2; |
d338d6fe |
558 | &main::dumpvar($packname,@vars); |
559 | } else { |
560 | print $OUT "dumpvar.pl not available.\n"; |
561 | } |
562 | select ($savout); |
563 | next CMD; }; |
564 | $cmd =~ s/^x\b/ / && do { # So that will be evaled |
1d06cb2d |
565 | $onetimeDump = 'dump'; }; |
566 | $cmd =~ s/^m\s+([\w:]+)\s*$/ / && do { |
567 | methods($1); next CMD}; |
568 | $cmd =~ s/^m\b/ / && do { # So this will be evaled |
569 | $onetimeDump = 'methods'; }; |
d338d6fe |
570 | $cmd =~ /^f\b\s*(.*)/ && do { |
571 | $file = $1; |
477ea2b1 |
572 | $file =~ s/\s+$//; |
d338d6fe |
573 | if (!$file) { |
574 | print $OUT "The old f command is now the r command.\n"; |
575 | print $OUT "The new f command switches filenames.\n"; |
576 | next CMD; |
577 | } |
578 | if (!defined $main::{'_<' . $file}) { |
579 | if (($try) = grep(m#^_<.*$file#, keys %main::)) {{ |
477ea2b1 |
580 | $try = substr($try,2); |
581 | print $OUT "Choosing $try matching `$file':\n"; |
582 | $file = $try; |
d338d6fe |
583 | }} |
584 | } |
585 | if (!defined $main::{'_<' . $file}) { |
04fb8f4b |
586 | print $OUT "No file matching `$file' is loaded.\n"; |
d338d6fe |
587 | next CMD; |
588 | } elsif ($file ne $filename) { |
8ebc5c01 |
589 | *dbline = $main::{'_<' . $file}; |
d338d6fe |
590 | $max = $#dbline; |
591 | $filename = $file; |
592 | $start = 1; |
593 | $cmd = "l"; |
477ea2b1 |
594 | } else { |
595 | print $OUT "Already in $file.\n"; |
596 | next CMD; |
597 | } |
598 | }; |
1d06cb2d |
599 | $cmd =~ s/^l\s+-\s*$/-/; |
d338d6fe |
600 | $cmd =~ /^l\b\s*([\':A-Za-z_][\':\w]*)/ && do { |
601 | $subname = $1; |
602 | $subname =~ s/\'/::/; |
477ea2b1 |
603 | $subname = $package."::".$subname |
604 | unless $subname =~ /::/; |
d338d6fe |
605 | $subname = "main".$subname if substr($subname,0,2) eq "::"; |
1d06cb2d |
606 | @pieces = split(/:/,find_sub($subname)); |
d338d6fe |
607 | $subrange = pop @pieces; |
608 | $file = join(':', @pieces); |
609 | if ($file ne $filename) { |
8ebc5c01 |
610 | *dbline = $main::{'_<' . $file}; |
d338d6fe |
611 | $max = $#dbline; |
612 | $filename = $file; |
613 | } |
614 | if ($subrange) { |
615 | if (eval($subrange) < -$window) { |
616 | $subrange =~ s/-.*/+/; |
617 | } |
618 | $cmd = "l $subrange"; |
619 | } else { |
620 | print $OUT "Subroutine $subname not found.\n"; |
621 | next CMD; |
622 | } }; |
54d04a52 |
623 | $cmd =~ /^\.$/ && do { |
1d06cb2d |
624 | $incr = -1; # for backward motion. |
54d04a52 |
625 | $start = $line; |
626 | $filename = $filename_ini; |
8ebc5c01 |
627 | *dbline = $main::{'_<' . $filename}; |
54d04a52 |
628 | $max = $#dbline; |
629 | print $LINEINFO $position; |
630 | next CMD }; |
d338d6fe |
631 | $cmd =~ /^w\b\s*(\d*)$/ && do { |
632 | $incr = $window - 1; |
633 | $start = $1 if $1; |
634 | $start -= $preview; |
54d04a52 |
635 | #print $OUT 'l ' . $start . '-' . ($start + $incr); |
d338d6fe |
636 | $cmd = 'l ' . $start . '-' . ($start + $incr); }; |
637 | $cmd =~ /^-$/ && do { |
1d06cb2d |
638 | $start -= $incr + $window + 1; |
639 | $start = 1 if $start <= 0; |
d338d6fe |
640 | $incr = $window - 1; |
1d06cb2d |
641 | $cmd = 'l ' . ($start) . '+'; }; |
d338d6fe |
642 | $cmd =~ /^l$/ && do { |
643 | $incr = $window - 1; |
644 | $cmd = 'l ' . $start . '-' . ($start + $incr); }; |
645 | $cmd =~ /^l\b\s*(\d*)\+(\d*)$/ && do { |
646 | $start = $1 if $1; |
647 | $incr = $2; |
648 | $incr = $window - 1 unless $incr; |
649 | $cmd = 'l ' . $start . '-' . ($start + $incr); }; |
54d04a52 |
650 | $cmd =~ /^l\b\s*((-?[\d\$\.]+)([-,]([\d\$\.]+))?)?/ && do { |
651 | $end = (!defined $2) ? $max : ($4 ? $4 : $2); |
d338d6fe |
652 | $end = $max if $end > $max; |
653 | $i = $2; |
654 | $i = $line if $i eq '.'; |
655 | $i = 1 if $i < 1; |
1d06cb2d |
656 | $incr = $end - $i; |
d338d6fe |
657 | if ($emacs) { |
658 | print $OUT "\032\032$filename:$i:0\n"; |
659 | $i = $end; |
660 | } else { |
661 | for (; $i <= $end; $i++) { |
54d04a52 |
662 | ($stop,$action) = split(/\0/, $dbline{$i}); |
663 | $arrow = ($i==$line |
664 | and $filename eq $filename_ini) |
665 | ? '==>' |
36477c24 |
666 | : ($dbline[$i]+0 ? ':' : ' ') ; |
54d04a52 |
667 | $arrow .= 'b' if $stop; |
668 | $arrow .= 'a' if $action; |
669 | print $OUT "$i$arrow\t", $dbline[$i]; |
65c9c81d |
670 | $i++, last if $signal; |
d338d6fe |
671 | } |
65c9c81d |
672 | print $OUT "\n" unless $dbline[$i-1] =~ /\n$/; |
d338d6fe |
673 | } |
674 | $start = $i; # remember in case they want more |
675 | $start = $max if $start > $max; |
676 | next CMD; }; |
677 | $cmd =~ /^D$/ && do { |
55497cff |
678 | print $OUT "Deleting all breakpoints...\n"; |
679 | my $file; |
680 | for $file (keys %had_breakpoints) { |
8ebc5c01 |
681 | local *dbline = $main::{'_<' . $file}; |
55497cff |
682 | my $max = $#dbline; |
683 | my $was; |
684 | |
d338d6fe |
685 | for ($i = 1; $i <= $max ; $i++) { |
686 | if (defined $dbline{$i}) { |
687 | $dbline{$i} =~ s/^[^\0]+//; |
688 | if ($dbline{$i} =~ s/^\0?$//) { |
689 | delete $dbline{$i}; |
690 | } |
691 | } |
692 | } |
55497cff |
693 | } |
694 | undef %postponed; |
695 | undef %postponed_file; |
696 | undef %break_on_load; |
697 | undef %had_breakpoints; |
698 | next CMD; }; |
d338d6fe |
699 | $cmd =~ /^L$/ && do { |
55497cff |
700 | my $file; |
701 | for $file (keys %had_breakpoints) { |
8ebc5c01 |
702 | local *dbline = $main::{'_<' . $file}; |
55497cff |
703 | my $max = $#dbline; |
704 | my $was; |
705 | |
d338d6fe |
706 | for ($i = 1; $i <= $max; $i++) { |
707 | if (defined $dbline{$i}) { |
2002527a |
708 | print $OUT "$file:\n" unless $was++; |
55497cff |
709 | print $OUT " $i:\t", $dbline[$i]; |
d338d6fe |
710 | ($stop,$action) = split(/\0/, $dbline{$i}); |
55497cff |
711 | print $OUT " break if (", $stop, ")\n" |
d338d6fe |
712 | if $stop; |
55497cff |
713 | print $OUT " action: ", $action, "\n" |
d338d6fe |
714 | if $action; |
715 | last if $signal; |
716 | } |
717 | } |
55497cff |
718 | } |
719 | if (%postponed) { |
720 | print $OUT "Postponed breakpoints in subroutines:\n"; |
721 | my $subname; |
722 | for $subname (keys %postponed) { |
723 | print $OUT " $subname\t$postponed{$subname}\n"; |
724 | last if $signal; |
725 | } |
726 | } |
727 | my @have = map { # Combined keys |
728 | keys %{$postponed_file{$_}} |
729 | } keys %postponed_file; |
730 | if (@have) { |
731 | print $OUT "Postponed breakpoints in files:\n"; |
732 | my ($file, $line); |
733 | for $file (keys %postponed_file) { |
0c395bd7 |
734 | my $db = $postponed_file{$file}; |
55497cff |
735 | print $OUT " $file:\n"; |
0c395bd7 |
736 | for $line (sort {$a <=> $b} keys %$db) { |
08a4aec0 |
737 | print $OUT " $line:\n"; |
0c395bd7 |
738 | my ($stop,$action) = split(/\0/, $$db{$line}); |
55497cff |
739 | print $OUT " break if (", $stop, ")\n" |
740 | if $stop; |
741 | print $OUT " action: ", $action, "\n" |
742 | if $action; |
743 | last if $signal; |
744 | } |
745 | last if $signal; |
746 | } |
747 | } |
748 | if (%break_on_load) { |
749 | print $OUT "Breakpoints on load:\n"; |
750 | my $file; |
751 | for $file (keys %break_on_load) { |
752 | print $OUT " $file\n"; |
753 | last if $signal; |
754 | } |
755 | } |
6027b9a3 |
756 | if ($trace & 2) { |
757 | print $OUT "Watch-expressions:\n"; |
758 | my $expr; |
759 | for $expr (@to_watch) { |
760 | print $OUT " $expr\n"; |
761 | last if $signal; |
762 | } |
763 | } |
55497cff |
764 | next CMD; }; |
765 | $cmd =~ /^b\b\s*load\b\s*(.*)/ && do { |
477ea2b1 |
766 | my $file = $1; $file =~ s/\s+$//; |
55497cff |
767 | { |
768 | $break_on_load{$file} = 1; |
769 | $break_on_load{$::INC{$file}} = 1 if $::INC{$file}; |
770 | $file .= '.pm', redo unless $file =~ /\./; |
771 | } |
772 | $had_breakpoints{$file} = 1; |
773 | print $OUT "Will stop on load of `@{[join '\', `', sort keys %break_on_load]}'.\n"; |
774 | next CMD; }; |
1d06cb2d |
775 | $cmd =~ /^b\b\s*(postpone|compile)\b\s*([':A-Za-z_][':\w]*)\s*(.*)/ && do { |
776 | my $cond = $3 || '1'; |
777 | my ($subname, $break) = ($2, $1 eq 'postpone'); |
55497cff |
778 | $subname =~ s/\'/::/; |
779 | $subname = "${'package'}::" . $subname |
780 | unless $subname =~ /::/; |
781 | $subname = "main".$subname if substr($subname,0,2) eq "::"; |
1d06cb2d |
782 | $postponed{$subname} = $break |
783 | ? "break +0 if $cond" : "compile"; |
d338d6fe |
784 | next CMD; }; |
785 | $cmd =~ /^b\b\s*([':A-Za-z_][':\w]*)\s*(.*)/ && do { |
786 | $subname = $1; |
787 | $cond = $2 || '1'; |
788 | $subname =~ s/\'/::/; |
789 | $subname = "${'package'}::" . $subname |
790 | unless $subname =~ /::/; |
791 | $subname = "main".$subname if substr($subname,0,2) eq "::"; |
792 | # Filename below can contain ':' |
1d06cb2d |
793 | ($file,$i) = (find_sub($subname) =~ /^(.*):(.*)$/); |
d338d6fe |
794 | $i += 0; |
795 | if ($i) { |
796 | $filename = $file; |
8ebc5c01 |
797 | *dbline = $main::{'_<' . $filename}; |
55497cff |
798 | $had_breakpoints{$filename} = 1; |
d338d6fe |
799 | $max = $#dbline; |
800 | ++$i while $dbline[$i] == 0 && $i < $max; |
801 | $dbline{$i} =~ s/^[^\0]*/$cond/; |
802 | } else { |
803 | print $OUT "Subroutine $subname not found.\n"; |
804 | } |
805 | next CMD; }; |
806 | $cmd =~ /^b\b\s*(\d*)\s*(.*)/ && do { |
807 | $i = ($1?$1:$line); |
808 | $cond = $2 || '1'; |
809 | if ($dbline[$i] == 0) { |
810 | print $OUT "Line $i not breakable.\n"; |
811 | } else { |
55497cff |
812 | $had_breakpoints{$filename} = 1; |
d338d6fe |
813 | $dbline{$i} =~ s/^[^\0]*/$cond/; |
814 | } |
815 | next CMD; }; |
816 | $cmd =~ /^d\b\s*(\d+)?/ && do { |
817 | $i = ($1?$1:$line); |
818 | $dbline{$i} =~ s/^[^\0]*//; |
819 | delete $dbline{$i} if $dbline{$i} eq ''; |
820 | next CMD; }; |
821 | $cmd =~ /^A$/ && do { |
55497cff |
822 | my $file; |
823 | for $file (keys %had_breakpoints) { |
8ebc5c01 |
824 | local *dbline = $main::{'_<' . $file}; |
55497cff |
825 | my $max = $#dbline; |
826 | my $was; |
827 | |
d338d6fe |
828 | for ($i = 1; $i <= $max ; $i++) { |
829 | if (defined $dbline{$i}) { |
830 | $dbline{$i} =~ s/\0[^\0]*//; |
831 | delete $dbline{$i} if $dbline{$i} eq ''; |
832 | } |
833 | } |
55497cff |
834 | } |
835 | next CMD; }; |
d338d6fe |
836 | $cmd =~ /^O\s*$/ && do { |
837 | for (@options) { |
838 | &dump_option($_); |
839 | } |
840 | next CMD; }; |
841 | $cmd =~ /^O\s*(\S.*)/ && do { |
842 | parse_options($1); |
843 | next CMD; }; |
55497cff |
844 | $cmd =~ /^\<\<\s*(.*)/ && do { # \<\< for CPerl sake: not HERE |
845 | push @$pre, action($1); |
846 | next CMD; }; |
847 | $cmd =~ /^>>\s*(.*)/ && do { |
848 | push @$post, action($1); |
849 | next CMD; }; |
d338d6fe |
850 | $cmd =~ /^<\s*(.*)/ && do { |
55497cff |
851 | $pre = [], next CMD unless $1; |
852 | $pre = [action($1)]; |
d338d6fe |
853 | next CMD; }; |
854 | $cmd =~ /^>\s*(.*)/ && do { |
55497cff |
855 | $post = [], next CMD unless $1; |
856 | $post = [action($1)]; |
857 | next CMD; }; |
858 | $cmd =~ /^\{\{\s*(.*)/ && do { |
859 | push @$pretype, $1; |
860 | next CMD; }; |
861 | $cmd =~ /^\{\s*(.*)/ && do { |
862 | $pretype = [], next CMD unless $1; |
863 | $pretype = [$1]; |
d338d6fe |
864 | next CMD; }; |
865 | $cmd =~ /^a\b\s*(\d+)(\s+(.*))?/ && do { |
866 | $i = $1; $j = $3; |
867 | if ($dbline[$i] == 0) { |
868 | print $OUT "Line $i may not have an action.\n"; |
869 | } else { |
870 | $dbline{$i} =~ s/\0[^\0]*//; |
871 | $dbline{$i} .= "\0" . action($j); |
872 | } |
873 | next CMD; }; |
874 | $cmd =~ /^n$/ && do { |
4639966b |
875 | end_report(), next CMD if $finished and $level <= 1; |
d338d6fe |
876 | $single = 2; |
877 | $laststep = $cmd; |
878 | last CMD; }; |
879 | $cmd =~ /^s$/ && do { |
4639966b |
880 | end_report(), next CMD if $finished and $level <= 1; |
d338d6fe |
881 | $single = 1; |
882 | $laststep = $cmd; |
883 | last CMD; }; |
54d04a52 |
884 | $cmd =~ /^c\b\s*([\w:]*)\s*$/ && do { |
4639966b |
885 | end_report(), next CMD if $finished and $level <= 1; |
fb73857a |
886 | $subname = $i = $1; |
54d04a52 |
887 | if ($i =~ /\D/) { # subroutine name |
fb73857a |
888 | $subname = $package."::".$subname |
889 | unless $subname =~ /::/; |
890 | ($file,$i) = (find_sub($subname) =~ /^(.*):(.*)$/); |
54d04a52 |
891 | $i += 0; |
892 | if ($i) { |
893 | $filename = $file; |
8ebc5c01 |
894 | *dbline = $main::{'_<' . $filename}; |
55497cff |
895 | $had_breakpoints{$filename}++; |
54d04a52 |
896 | $max = $#dbline; |
897 | ++$i while $dbline[$i] == 0 && $i < $max; |
898 | } else { |
899 | print $OUT "Subroutine $subname not found.\n"; |
900 | next CMD; |
901 | } |
902 | } |
d338d6fe |
903 | if ($i) { |
904 | if ($dbline[$i] == 0) { |
905 | print $OUT "Line $i not breakable.\n"; |
906 | next CMD; |
907 | } |
908 | $dbline{$i} =~ s/($|\0)/;9$1/; # add one-time-only b.p. |
909 | } |
f8b5b99c |
910 | for ($i=0; $i <= $stack_depth; ) { |
d338d6fe |
911 | $stack[$i++] &= ~1; |
912 | } |
913 | last CMD; }; |
914 | $cmd =~ /^r$/ && do { |
4639966b |
915 | end_report(), next CMD if $finished and $level <= 1; |
f8b5b99c |
916 | $stack[$stack_depth] |= 1; |
917 | $doret = $option{PrintRet} ? $stack_depth - 1 : -2; |
d338d6fe |
918 | last CMD; }; |
54d04a52 |
919 | $cmd =~ /^R$/ && do { |
55497cff |
920 | print $OUT "Warning: some settings and command-line options may be lost!\n"; |
54d04a52 |
921 | my (@script, @flags, $cl); |
922 | push @flags, '-w' if $ini_warn; |
923 | # Put all the old includes at the start to get |
924 | # the same debugger. |
925 | for (@ini_INC) { |
926 | push @flags, '-I', $_; |
927 | } |
928 | # Arrange for setting the old INC: |
929 | set_list("PERLDB_INC", @ini_INC); |
930 | if ($0 eq '-e') { |
931 | for (1..$#{'::_<-e'}) { # The first line is PERL5DB |
932 | chomp ($cl = $ {'::_<-e'}[$_]); |
933 | push @script, '-e', $cl; |
934 | } |
935 | } else { |
936 | @script = $0; |
937 | } |
938 | set_list("PERLDB_HIST", |
939 | $term->Features->{getHistory} |
940 | ? $term->GetHistory : @hist); |
55497cff |
941 | my @had_breakpoints = keys %had_breakpoints; |
942 | set_list("PERLDB_VISITED", @had_breakpoints); |
54d04a52 |
943 | set_list("PERLDB_OPT", %option); |
55497cff |
944 | set_list("PERLDB_ON_LOAD", %break_on_load); |
945 | my @hard; |
946 | for (0 .. $#had_breakpoints) { |
947 | my $file = $had_breakpoints[$_]; |
8ebc5c01 |
948 | *dbline = $main::{'_<' . $file}; |
0c395bd7 |
949 | next unless %dbline or $postponed_file{$file}; |
55497cff |
950 | (push @hard, $file), next |
951 | if $file =~ /^\(eval \d+\)$/; |
952 | my @add; |
953 | @add = %{$postponed_file{$file}} |
0c395bd7 |
954 | if $postponed_file{$file}; |
55497cff |
955 | set_list("PERLDB_FILE_$_", %dbline, @add); |
956 | } |
957 | for (@hard) { # Yes, really-really... |
958 | # Find the subroutines in this eval |
8ebc5c01 |
959 | *dbline = $main::{'_<' . $_}; |
55497cff |
960 | my ($quoted, $sub, %subs, $line) = quotemeta $_; |
961 | for $sub (keys %sub) { |
962 | next unless $sub{$sub} =~ /^$quoted:(\d+)-(\d+)$/; |
963 | $subs{$sub} = [$1, $2]; |
964 | } |
965 | unless (%subs) { |
966 | print $OUT |
967 | "No subroutines in $_, ignoring breakpoints.\n"; |
968 | next; |
969 | } |
970 | LINES: for $line (keys %dbline) { |
971 | # One breakpoint per sub only: |
972 | my ($offset, $sub, $found); |
973 | SUBS: for $sub (keys %subs) { |
974 | if ($subs{$sub}->[1] >= $line # Not after the subroutine |
975 | and (not defined $offset # Not caught |
976 | or $offset < 0 )) { # or badly caught |
977 | $found = $sub; |
978 | $offset = $line - $subs{$sub}->[0]; |
979 | $offset = "+$offset", last SUBS if $offset >= 0; |
980 | } |
981 | } |
982 | if (defined $offset) { |
983 | $postponed{$found} = |
984 | "break $offset if $dbline{$line}"; |
985 | } else { |
986 | print $OUT "Breakpoint in $_:$line ignored: after all the subroutines.\n"; |
987 | } |
988 | } |
54d04a52 |
989 | } |
55497cff |
990 | set_list("PERLDB_POSTPONE", %postponed); |
43aed9ee |
991 | set_list("PERLDB_PRETYPE", @$pretype); |
992 | set_list("PERLDB_PRE", @$pre); |
993 | set_list("PERLDB_POST", @$post); |
994 | set_list("PERLDB_TYPEAHEAD", @typeahead); |
54d04a52 |
995 | $ENV{PERLDB_RESTART} = 1; |
996 | #print "$^X, '-d', @flags, @script, ($emacs ? '-emacs' : ()), @ARGS"; |
997 | exec $^X, '-d', @flags, @script, ($emacs ? '-emacs' : ()), @ARGS; |
998 | print $OUT "exec failed: $!\n"; |
999 | last CMD; }; |
d338d6fe |
1000 | $cmd =~ /^T$/ && do { |
36477c24 |
1001 | print_trace($OUT, 1); # skip DB |
d338d6fe |
1002 | next CMD; }; |
6027b9a3 |
1003 | $cmd =~ /^W\s*$/ && do { |
1004 | $trace &= ~2; |
1005 | @to_watch = @old_watch = (); |
1006 | next CMD; }; |
1007 | $cmd =~ /^W\b\s*(.*)/s && do { |
1008 | push @to_watch, $1; |
1009 | $evalarg = $1; |
1010 | my ($val) = &eval; |
1011 | $val = (defined $val) ? "'$val'" : 'undef' ; |
1012 | push @old_watch, $val; |
1013 | $trace |= 2; |
1014 | next CMD; }; |
d338d6fe |
1015 | $cmd =~ /^\/(.*)$/ && do { |
1016 | $inpat = $1; |
1017 | $inpat =~ s:([^\\])/$:$1:; |
1018 | if ($inpat ne "") { |
1019 | eval '$inpat =~ m'."\a$inpat\a"; |
1020 | if ($@ ne "") { |
1021 | print $OUT "$@"; |
1022 | next CMD; |
1023 | } |
1024 | $pat = $inpat; |
1025 | } |
1026 | $end = $start; |
1d06cb2d |
1027 | $incr = -1; |
d338d6fe |
1028 | eval ' |
1029 | for (;;) { |
1030 | ++$start; |
1031 | $start = 1 if ($start > $max); |
1032 | last if ($start == $end); |
1033 | if ($dbline[$start] =~ m' . "\a$pat\a" . 'i) { |
1034 | if ($emacs) { |
1035 | print $OUT "\032\032$filename:$start:0\n"; |
1036 | } else { |
1037 | print $OUT "$start:\t", $dbline[$start], "\n"; |
1038 | } |
1039 | last; |
1040 | } |
1041 | } '; |
1042 | print $OUT "/$pat/: not found\n" if ($start == $end); |
1043 | next CMD; }; |
1044 | $cmd =~ /^\?(.*)$/ && do { |
1045 | $inpat = $1; |
1046 | $inpat =~ s:([^\\])\?$:$1:; |
1047 | if ($inpat ne "") { |
1048 | eval '$inpat =~ m'."\a$inpat\a"; |
1049 | if ($@ ne "") { |
1050 | print $OUT "$@"; |
1051 | next CMD; |
1052 | } |
1053 | $pat = $inpat; |
1054 | } |
1055 | $end = $start; |
1d06cb2d |
1056 | $incr = -1; |
d338d6fe |
1057 | eval ' |
1058 | for (;;) { |
1059 | --$start; |
1060 | $start = $max if ($start <= 0); |
1061 | last if ($start == $end); |
1062 | if ($dbline[$start] =~ m' . "\a$pat\a" . 'i) { |
1063 | if ($emacs) { |
1064 | print $OUT "\032\032$filename:$start:0\n"; |
1065 | } else { |
1066 | print $OUT "$start:\t", $dbline[$start], "\n"; |
1067 | } |
1068 | last; |
1069 | } |
1070 | } '; |
1071 | print $OUT "?$pat?: not found\n" if ($start == $end); |
1072 | next CMD; }; |
1073 | $cmd =~ /^$rc+\s*(-)?(\d+)?$/ && do { |
1074 | pop(@hist) if length($cmd) > 1; |
1075 | $i = $1 ? ($#hist-($2?$2:1)) : ($2?$2:$#hist); |
6921e3ed |
1076 | $cmd = $hist[$i]; |
615b993b |
1077 | print $OUT $cmd, "\n"; |
d338d6fe |
1078 | redo CMD; }; |
55497cff |
1079 | $cmd =~ /^$sh$sh\s*([\x00-\xff]*)/ && do { |
ee971a18 |
1080 | &system($1); |
d338d6fe |
1081 | next CMD; }; |
1082 | $cmd =~ /^$rc([^$rc].*)$/ && do { |
1083 | $pat = "^$1"; |
1084 | pop(@hist) if length($cmd) > 1; |
1085 | for ($i = $#hist; $i; --$i) { |
1086 | last if $hist[$i] =~ /$pat/; |
1087 | } |
1088 | if (!$i) { |
1089 | print $OUT "No such command!\n\n"; |
1090 | next CMD; |
1091 | } |
6921e3ed |
1092 | $cmd = $hist[$i]; |
615b993b |
1093 | print $OUT $cmd, "\n"; |
d338d6fe |
1094 | redo CMD; }; |
1095 | $cmd =~ /^$sh$/ && do { |
1096 | &system($ENV{SHELL}||"/bin/sh"); |
1097 | next CMD; }; |
ee971a18 |
1098 | $cmd =~ /^$sh\s*([\x00-\xff]*)/ && do { |
1099 | &system($ENV{SHELL}||"/bin/sh","-c",$1); |
d338d6fe |
1100 | next CMD; }; |
1101 | $cmd =~ /^H\b\s*(-(\d+))?/ && do { |
1102 | $end = $2?($#hist-$2):0; |
1103 | $hist = 0 if $hist < 0; |
1104 | for ($i=$#hist; $i>$end; $i--) { |
1105 | print $OUT "$i: ",$hist[$i],"\n" |
1106 | unless $hist[$i] =~ /^.?$/; |
1107 | }; |
1108 | next CMD; }; |
b9b857e2 |
1109 | $cmd =~ s/^p$/print {\$DB::OUT} \$_/; |
1110 | $cmd =~ s/^p\b/print {\$DB::OUT} /; |
d338d6fe |
1111 | $cmd =~ /^=/ && do { |
1112 | if (local($k,$v) = ($cmd =~ /^=\s*(\S+)\s+(.*)/)) { |
1113 | $alias{$k}="s~$k~$v~"; |
1114 | print $OUT "$k = $v\n"; |
1115 | } elsif ($cmd =~ /^=\s*$/) { |
1116 | foreach $k (sort keys(%alias)) { |
1117 | if (($v = $alias{$k}) =~ s~^s\~$k\~(.*)\~$~$1~) { |
1118 | print $OUT "$k = $v\n"; |
1119 | } else { |
1120 | print $OUT "$k\t$alias{$k}\n"; |
1121 | }; |
1122 | }; |
1123 | }; |
1124 | next CMD; }; |
1125 | $cmd =~ /^\|\|?\s*[^|]/ && do { |
1126 | if ($pager =~ /^\|/) { |
1127 | open(SAVEOUT,">&STDOUT") || &warn("Can't save STDOUT"); |
1128 | open(STDOUT,">&OUT") || &warn("Can't redirect STDOUT"); |
1129 | } else { |
1130 | open(SAVEOUT,">&OUT") || &warn("Can't save DB::OUT"); |
1131 | } |
1132 | unless ($piped=open(OUT,$pager)) { |
1133 | &warn("Can't pipe output to `$pager'"); |
1134 | if ($pager =~ /^\|/) { |
1135 | open(OUT,">&STDOUT") || &warn("Can't restore DB::OUT"); |
1136 | open(STDOUT,">&SAVEOUT") |
1137 | || &warn("Can't restore STDOUT"); |
1138 | close(SAVEOUT); |
1139 | } else { |
1140 | open(OUT,">&STDOUT") || &warn("Can't restore DB::OUT"); |
1141 | } |
1142 | next CMD; |
1143 | } |
77fb7b16 |
1144 | $SIG{PIPE}= \&DB::catch if $pager =~ /^\|/ |
d338d6fe |
1145 | && "" eq $SIG{PIPE} || "DEFAULT" eq $SIG{PIPE}; |
1146 | $selected= select(OUT); |
1147 | $|= 1; |
1148 | select( $selected ), $selected= "" unless $cmd =~ /^\|\|/; |
1149 | $cmd =~ s/^\|+\s*//; |
1150 | redo PIPE; }; |
1151 | # XXX Local variants do not work! |
6027b9a3 |
1152 | $cmd =~ s/^t\s/\$DB::trace |= 1;\n/; |
d338d6fe |
1153 | $cmd =~ s/^s\s/\$DB::single = 1;\n/ && do {$laststep = 's'}; |
1154 | $cmd =~ s/^n\s/\$DB::single = 2;\n/ && do {$laststep = 'n'}; |
1155 | } # PIPE: |
d338d6fe |
1156 | $evalarg = "\$^D = \$^D | \$DB::db_stop;\n$cmd"; &eval; |
1157 | if ($onetimeDump) { |
1158 | $onetimeDump = undef; |
f36776d9 |
1159 | } elsif ($term_pid == $$) { |
d338d6fe |
1160 | print $OUT "\n"; |
1161 | } |
1162 | } continue { # CMD: |
1163 | if ($piped) { |
1164 | if ($pager =~ /^\|/) { |
1165 | $?= 0; close(OUT) || &warn("Can't close DB::OUT"); |
1166 | &warn( "Pager `$pager' failed: ", |
1167 | ($?>>8) > 128 ? ($?>>8)-256 : ($?>>8), |
1168 | ( $? & 128 ) ? " (core dumped)" : "", |
1169 | ( $? & 127 ) ? " (SIG ".($?&127).")" : "", "\n" ) if $?; |
1170 | open(OUT,">&STDOUT") || &warn("Can't restore DB::OUT"); |
1171 | open(STDOUT,">&SAVEOUT") || &warn("Can't restore STDOUT"); |
77fb7b16 |
1172 | $SIG{PIPE}= "DEFAULT" if $SIG{PIPE} eq \&DB::catch; |
d338d6fe |
1173 | # Will stop ignoring SIGPIPE if done like nohup(1) |
1174 | # does SIGINT but Perl doesn't give us a choice. |
1175 | } else { |
1176 | open(OUT,">&SAVEOUT") || &warn("Can't restore DB::OUT"); |
1177 | } |
1178 | close(SAVEOUT); |
1179 | select($selected), $selected= "" unless $selected eq ""; |
1180 | $piped= ""; |
1181 | } |
1182 | } # CMD: |
04fb8f4b |
1183 | $exiting = 1 unless defined $cmd; |
e63173ce |
1184 | foreach $evalarg (@$post) { |
1185 | &eval; |
1186 | } |
d338d6fe |
1187 | } # if ($single || $signal) |
22fae026 |
1188 | ($@, $!, $^E, $,, $/, $\, $^W) = @saved; |
d338d6fe |
1189 | (); |
1190 | } |
1191 | |
1192 | # The following code may be executed now: |
1193 | # BEGIN {warn 4} |
1194 | |
1195 | sub sub { |
ee971a18 |
1196 | my ($al, $ret, @ret) = ""; |
7d4a81e5 |
1197 | if (length($sub) > 10 && substr($sub, -10, 10) eq '::AUTOLOAD') { |
1198 | $al = " for $$sub"; |
ee971a18 |
1199 | } |
f8b5b99c |
1200 | local $stack_depth = $stack_depth + 1; # Protect from non-local exits |
1201 | $#stack = $stack_depth; |
1202 | $stack[-1] = $single; |
d338d6fe |
1203 | $single &= 1; |
f8b5b99c |
1204 | $single |= 4 if $stack_depth == $deep; |
04fb8f4b |
1205 | ($frame & 4 |
f8b5b99c |
1206 | ? ( (print $LINEINFO ' ' x ($stack_depth - 1), "in "), |
04fb8f4b |
1207 | # Why -1? But it works! :-( |
1208 | print_trace($LINEINFO, -1, 1, 1, "$sub$al") ) |
f8b5b99c |
1209 | : print $LINEINFO ' ' x ($stack_depth - 1), "entering $sub$al\n") if $frame; |
d338d6fe |
1210 | if (wantarray) { |
1211 | @ret = &$sub; |
f8b5b99c |
1212 | $single |= $stack[$stack_depth--]; |
36477c24 |
1213 | ($frame & 4 |
f8b5b99c |
1214 | ? ( (print $LINEINFO ' ' x $stack_depth, "out "), |
36477c24 |
1215 | print_trace($LINEINFO, -1, 1, 1, "$sub$al") ) |
f8b5b99c |
1216 | : print $LINEINFO ' ' x $stack_depth, "exited $sub$al\n") if $frame & 2; |
1217 | if ($doret eq $stack_depth or $frame & 16) { |
1218 | my $fh = ($doret eq $stack_depth ? $OUT : $LINEINFO); |
1219 | print $fh ' ' x $stack_depth if $frame & 16; |
7ea36084 |
1220 | print $fh "list context return from $sub:\n"; |
1221 | dumpit($fh, \@ret ); |
1222 | $doret = -2; |
1223 | } |
d338d6fe |
1224 | @ret; |
1225 | } else { |
fb73857a |
1226 | if (defined wantarray) { |
1227 | $ret = &$sub; |
1228 | } else { |
1229 | &$sub; undef $ret; |
1230 | }; |
f8b5b99c |
1231 | $single |= $stack[$stack_depth--]; |
36477c24 |
1232 | ($frame & 4 |
f8b5b99c |
1233 | ? ( (print $LINEINFO ' ' x $stack_depth, "out "), |
36477c24 |
1234 | print_trace($LINEINFO, -1, 1, 1, "$sub$al") ) |
f8b5b99c |
1235 | : print $LINEINFO ' ' x $stack_depth, "exited $sub$al\n") if $frame & 2; |
1236 | if ($doret eq $stack_depth or $frame & 16 and defined wantarray) { |
1237 | my $fh = ($doret eq $stack_depth ? $OUT : $LINEINFO); |
1238 | print $fh (' ' x $stack_depth) if $frame & 16; |
7ea36084 |
1239 | print $fh (defined wantarray |
1240 | ? "scalar context return from $sub: " |
1241 | : "void context return from $sub\n"); |
1242 | dumpit( $fh, $ret ) if defined wantarray; |
1243 | $doret = -2; |
1244 | } |
d338d6fe |
1245 | $ret; |
1246 | } |
1247 | } |
1248 | |
1249 | sub save { |
22fae026 |
1250 | @saved = ($@, $!, $^E, $,, $/, $\, $^W); |
d338d6fe |
1251 | $, = ""; $/ = "\n"; $\ = ""; $^W = 0; |
1252 | } |
1253 | |
1254 | # The following takes its argument via $evalarg to preserve current @_ |
1255 | |
1256 | sub eval { |
1257 | my @res; |
1258 | { |
d338d6fe |
1259 | my $otrace = $trace; |
1260 | my $osingle = $single; |
1261 | my $od = $^D; |
1262 | @res = eval "$usercontext $evalarg;\n"; # '\n' for nice recursive debug |
1263 | $trace = $otrace; |
1264 | $single = $osingle; |
1265 | $^D = $od; |
1266 | } |
1267 | my $at = $@; |
36477c24 |
1268 | local $saved[0]; # Preserve the old value of $@ |
22fae026 |
1269 | eval { &DB::save }; |
d338d6fe |
1270 | if ($at) { |
1271 | print $OUT $at; |
1d06cb2d |
1272 | } elsif ($onetimeDump eq 'dump') { |
7ea36084 |
1273 | dumpit($OUT, \@res); |
1d06cb2d |
1274 | } elsif ($onetimeDump eq 'methods') { |
1275 | methods($res[0]); |
d338d6fe |
1276 | } |
6027b9a3 |
1277 | @res; |
d338d6fe |
1278 | } |
1279 | |
55497cff |
1280 | sub postponed_sub { |
1281 | my $subname = shift; |
1d06cb2d |
1282 | if ($postponed{$subname} =~ s/^break\s([+-]?\d+)\s+if\s//) { |
55497cff |
1283 | my $offset = $1 || 0; |
1284 | # Filename below can contain ':' |
1d06cb2d |
1285 | my ($file,$i) = (find_sub($subname) =~ /^(.*):(\d+)-.*$/); |
55497cff |
1286 | if ($i) { |
fb73857a |
1287 | $i += $offset; |
8ebc5c01 |
1288 | local *dbline = $main::{'_<' . $file}; |
55497cff |
1289 | local $^W = 0; # != 0 is magical below |
1290 | $had_breakpoints{$file}++; |
1291 | my $max = $#dbline; |
1292 | ++$i until $dbline[$i] != 0 or $i >= $max; |
1293 | $dbline{$i} = delete $postponed{$subname}; |
1294 | } else { |
1295 | print $OUT "Subroutine $subname not found.\n"; |
1296 | } |
1297 | return; |
1298 | } |
1d06cb2d |
1299 | elsif ($postponed{$subname} eq 'compile') { $signal = 1 } |
36477c24 |
1300 | #print $OUT "In postponed_sub for `$subname'.\n"; |
55497cff |
1301 | } |
1302 | |
1303 | sub postponed { |
3aefca04 |
1304 | if ($ImmediateStop) { |
1305 | $ImmediateStop = 0; |
1306 | $signal = 1; |
1307 | } |
55497cff |
1308 | return &postponed_sub |
1309 | unless ref \$_[0] eq 'GLOB'; # A subroutine is compiled. |
1310 | # Cannot be done before the file is compiled |
1311 | local *dbline = shift; |
1312 | my $filename = $dbline; |
1313 | $filename =~ s/^_<//; |
36477c24 |
1314 | $signal = 1, print $OUT "'$filename' loaded...\n" |
1315 | if $break_on_load{$filename}; |
f8b5b99c |
1316 | print $LINEINFO ' ' x $stack_depth, "Package $filename.\n" if $frame; |
0c395bd7 |
1317 | return unless $postponed_file{$filename}; |
55497cff |
1318 | $had_breakpoints{$filename}++; |
1319 | #%dbline = %{$postponed_file{$filename}}; # Cannot be done: unsufficient magic |
1320 | my $key; |
1321 | for $key (keys %{$postponed_file{$filename}}) { |
1322 | $dbline{$key} = $ {$postponed_file{$filename}}{$key}; |
54d04a52 |
1323 | } |
0c395bd7 |
1324 | delete $postponed_file{$filename}; |
54d04a52 |
1325 | } |
1326 | |
d338d6fe |
1327 | sub dumpit { |
7ea36084 |
1328 | local ($savout) = select(shift); |
ee971a18 |
1329 | my $osingle = $single; |
1330 | my $otrace = $trace; |
1331 | $single = $trace = 0; |
1332 | local $frame = 0; |
1333 | local $doret = -2; |
1334 | unless (defined &main::dumpValue) { |
1335 | do 'dumpvar.pl'; |
1336 | } |
d338d6fe |
1337 | if (defined &main::dumpValue) { |
1338 | &main::dumpValue(shift); |
1339 | } else { |
1340 | print $OUT "dumpvar.pl not available.\n"; |
1341 | } |
ee971a18 |
1342 | $single = $osingle; |
1343 | $trace = $otrace; |
d338d6fe |
1344 | select ($savout); |
1345 | } |
1346 | |
36477c24 |
1347 | # Tied method do not create a context, so may get wrong message: |
1348 | |
55497cff |
1349 | sub print_trace { |
1350 | my $fh = shift; |
36477c24 |
1351 | my @sub = dump_trace($_[0] + 1, $_[1]); |
1352 | my $short = $_[2]; # Print short report, next one for sub name |
1d06cb2d |
1353 | my $s; |
55497cff |
1354 | for ($i=0; $i <= $#sub; $i++) { |
1355 | last if $signal; |
1356 | local $" = ', '; |
1357 | my $args = defined $sub[$i]{args} |
1358 | ? "(@{ $sub[$i]{args} })" |
1359 | : '' ; |
1d06cb2d |
1360 | $args = (substr $args, 0, $maxtrace - 3) . '...' |
1361 | if length $args > $maxtrace; |
36477c24 |
1362 | my $file = $sub[$i]{file}; |
1363 | $file = $file eq '-e' ? $file : "file `$file'" unless $short; |
1d06cb2d |
1364 | $s = $sub[$i]{sub}; |
1365 | $s = (substr $s, 0, $maxtrace - 3) . '...' if length $s > $maxtrace; |
36477c24 |
1366 | if ($short) { |
1d06cb2d |
1367 | my $sub = @_ >= 4 ? $_[3] : $s; |
36477c24 |
1368 | print $fh "$sub[$i]{context}=$sub$args from $file:$sub[$i]{line}\n"; |
1369 | } else { |
1d06cb2d |
1370 | print $fh "$sub[$i]{context} = $s$args" . |
36477c24 |
1371 | " called from $file" . |
1372 | " line $sub[$i]{line}\n"; |
1373 | } |
55497cff |
1374 | } |
1375 | } |
1376 | |
1377 | sub dump_trace { |
1378 | my $skip = shift; |
36477c24 |
1379 | my $count = shift || 1e9; |
1380 | $skip++; |
1381 | $count += $skip; |
55497cff |
1382 | my ($p,$file,$line,$sub,$h,$args,$e,$r,@a,@sub,$context); |
04fb8f4b |
1383 | my $nothard = not $frame & 8; |
1384 | local $frame = 0; # Do not want to trace this. |
1385 | my $otrace = $trace; |
1386 | $trace = 0; |
55497cff |
1387 | for ($i = $skip; |
36477c24 |
1388 | $i < $count and ($p,$file,$line,$sub,$h,$context,$e,$r) = caller($i); |
55497cff |
1389 | $i++) { |
1390 | @a = (); |
1391 | for $arg (@args) { |
04fb8f4b |
1392 | my $type; |
1393 | if (not defined $arg) { |
1394 | push @a, "undef"; |
1395 | } elsif ($nothard and tied $arg) { |
1396 | push @a, "tied"; |
1397 | } elsif ($nothard and $type = ref $arg) { |
1398 | push @a, "ref($type)"; |
1399 | } else { |
1400 | local $_ = "$arg"; # Safe to stringify now - should not call f(). |
1401 | s/([\'\\])/\\$1/g; |
1402 | s/(.*)/'$1'/s |
1403 | unless /^(?: -?[\d.]+ | \*[\w:]* )$/x; |
1404 | s/([\200-\377])/sprintf("M-%c",ord($1)&0177)/eg; |
1405 | s/([\0-\37\177])/sprintf("^%c",ord($1)^64)/eg; |
1406 | push(@a, $_); |
1407 | } |
55497cff |
1408 | } |
7ea36084 |
1409 | $context = $context ? '@' : (defined $context ? "\$" : '.'); |
55497cff |
1410 | $args = $h ? [@a] : undef; |
1411 | $e =~ s/\n\s*\;\s*\Z// if $e; |
1d06cb2d |
1412 | $e =~ s/([\\\'])/\\$1/g if $e; |
55497cff |
1413 | if ($r) { |
1414 | $sub = "require '$e'"; |
1415 | } elsif (defined $r) { |
1416 | $sub = "eval '$e'"; |
1417 | } elsif ($sub eq '(eval)') { |
1418 | $sub = "eval {...}"; |
1419 | } |
1420 | push(@sub, {context => $context, sub => $sub, args => $args, |
1421 | file => $file, line => $line}); |
1422 | last if $signal; |
1423 | } |
04fb8f4b |
1424 | $trace = $otrace; |
55497cff |
1425 | @sub; |
1426 | } |
1427 | |
d338d6fe |
1428 | sub action { |
1429 | my $action = shift; |
1430 | while ($action =~ s/\\$//) { |
1431 | #print $OUT "+ "; |
1432 | #$action .= "\n"; |
1433 | $action .= &gets; |
1434 | } |
1435 | $action; |
1436 | } |
1437 | |
1438 | sub gets { |
1439 | local($.); |
1440 | #<IN>; |
1441 | &readline("cont: "); |
1442 | } |
1443 | |
1444 | sub system { |
1445 | # We save, change, then restore STDIN and STDOUT to avoid fork() since |
1446 | # many non-Unix systems can do system() but have problems with fork(). |
1447 | open(SAVEIN,"<&STDIN") || &warn("Can't save STDIN"); |
8ee058cb |
1448 | open(SAVEOUT,">&STDOUT") || &warn("Can't save STDOUT"); |
d338d6fe |
1449 | open(STDIN,"<&IN") || &warn("Can't redirect STDIN"); |
1450 | open(STDOUT,">&OUT") || &warn("Can't redirect STDOUT"); |
1451 | system(@_); |
1452 | open(STDIN,"<&SAVEIN") || &warn("Can't restore STDIN"); |
1453 | open(STDOUT,">&SAVEOUT") || &warn("Can't restore STDOUT"); |
1454 | close(SAVEIN); close(SAVEOUT); |
1455 | &warn( "(Command returned ", ($?>>8) > 128 ? ($?>>8)-256 : ($?>>8), ")", |
1456 | ( $? & 128 ) ? " (core dumped)" : "", |
1457 | ( $? & 127 ) ? " (SIG ".($?&127).")" : "", "\n" ) if $?; |
1458 | $?; |
1459 | } |
1460 | |
1461 | sub setterm { |
54d04a52 |
1462 | local $frame = 0; |
ee971a18 |
1463 | local $doret = -2; |
ee971a18 |
1464 | eval { require Term::ReadLine } or die $@; |
d338d6fe |
1465 | if ($notty) { |
1466 | if ($tty) { |
1467 | open(IN,"<$tty") or die "Cannot open TTY `$TTY' for read: $!"; |
1468 | open(OUT,">$tty") or die "Cannot open TTY `$TTY' for write: $!"; |
1469 | $IN = \*IN; |
1470 | $OUT = \*OUT; |
1471 | my $sel = select($OUT); |
1472 | $| = 1; |
1473 | select($sel); |
1474 | } else { |
1475 | eval "require Term::Rendezvous;" or die $@; |
1476 | my $rv = $ENV{PERLDB_NOTTY} || "/tmp/perldbtty$$"; |
1477 | my $term_rv = new Term::Rendezvous $rv; |
1478 | $IN = $term_rv->IN; |
1479 | $OUT = $term_rv->OUT; |
1480 | } |
1481 | } |
1482 | if (!$rl) { |
1483 | $term = new Term::ReadLine::Stub 'perldb', $IN, $OUT; |
1484 | } else { |
1485 | $term = new Term::ReadLine 'perldb', $IN, $OUT; |
1486 | |
a737e074 |
1487 | $rl_attribs = $term->Attribs; |
1488 | $rl_attribs->{basic_word_break_characters} .= '-:+/*,[])}' |
1489 | if defined $rl_attribs->{basic_word_break_characters} |
1490 | and index($rl_attribs->{basic_word_break_characters}, ":") == -1; |
1491 | $rl_attribs->{special_prefixes} = '$@&%'; |
1492 | $rl_attribs->{completer_word_break_characters} .= '$@&%'; |
1493 | $rl_attribs->{completion_function} = \&db_complete; |
d338d6fe |
1494 | } |
1495 | $LINEINFO = $OUT unless defined $LINEINFO; |
1496 | $lineinfo = $console unless defined $lineinfo; |
1497 | $term->MinLine(2); |
54d04a52 |
1498 | if ($term->Features->{setHistory} and "@hist" ne "?") { |
1499 | $term->SetHistory(@hist); |
1500 | } |
7a2e2cd6 |
1501 | ornaments($ornaments) if defined $ornaments; |
f36776d9 |
1502 | $term_pid = $$; |
1503 | } |
1504 | |
1505 | sub resetterm { # We forked, so we need a different TTY |
1506 | $term_pid = $$; |
1507 | if (defined &get_fork_TTY) { |
1508 | &get_fork_TTY; |
1509 | } elsif (not defined $fork_TTY |
1510 | and defined $ENV{TERM} and $ENV{TERM} eq 'xterm' |
1511 | and defined $ENV{WINDOWID} and defined $ENV{DISPLAY}) { |
1512 | # Possibly _inside_ XTERM |
1513 | open XT, q[3>&1 xterm -title 'Forked Perl debugger' -e sh -c 'tty 1>&3;\ |
1514 | sleep 10000000' |]; |
1515 | $fork_TTY = <XT>; |
1516 | chomp $fork_TTY; |
1517 | } |
1518 | if (defined $fork_TTY) { |
1519 | TTY($fork_TTY); |
1520 | undef $fork_TTY; |
1521 | } else { |
405ff068 |
1522 | print_help(<<EOP); |
1523 | I<#########> Forked, but do not know how to change a B<TTY>. I<#########> |
1524 | Define B<\$DB::fork_TTY> |
1525 | - or a function B<DB::get_fork_TTY()> which will set B<\$DB::fork_TTY>. |
1526 | The value of B<\$DB::fork_TTY> should be the name of I<TTY> to use. |
1527 | On I<UNIX>-like systems one can get the name of a I<TTY> for the given window |
1528 | by typing B<tty>, and disconnect the I<shell> from I<TTY> by B<sleep 1000000>. |
1529 | EOP |
f36776d9 |
1530 | } |
d338d6fe |
1531 | } |
1532 | |
1533 | sub readline { |
54d04a52 |
1534 | if (@typeahead) { |
1535 | my $left = @typeahead; |
1536 | my $got = shift @typeahead; |
1537 | print $OUT "auto(-$left)", shift, $got, "\n"; |
1538 | $term->AddHistory($got) |
1539 | if length($got) > 1 and defined $term->Features->{addHistory}; |
1540 | return $got; |
1541 | } |
d338d6fe |
1542 | local $frame = 0; |
ee971a18 |
1543 | local $doret = -2; |
1d7c1841 |
1544 | if (ref $OUT and UNIVERSAL::isa($OUT, 'IO::Socket::INET')) { |
1545 | print $OUT @_; |
1546 | my $stuff; |
1547 | $IN->recv( $stuff, 2048 ); |
1548 | $stuff; |
1549 | } |
1550 | else { |
1551 | $term->readline(@_); |
1552 | } |
d338d6fe |
1553 | } |
1554 | |
1555 | sub dump_option { |
1556 | my ($opt, $val)= @_; |
55497cff |
1557 | $val = option_val($opt,'N/A'); |
1558 | $val =~ s/([\\\'])/\\$1/g; |
1559 | printf $OUT "%20s = '%s'\n", $opt, $val; |
1560 | } |
1561 | |
1562 | sub option_val { |
1563 | my ($opt, $default)= @_; |
1564 | my $val; |
d338d6fe |
1565 | if (defined $optionVars{$opt} |
1566 | and defined $ {$optionVars{$opt}}) { |
1567 | $val = $ {$optionVars{$opt}}; |
1568 | } elsif (defined $optionAction{$opt} |
1569 | and defined &{$optionAction{$opt}}) { |
1570 | $val = &{$optionAction{$opt}}(); |
1571 | } elsif (defined $optionAction{$opt} |
1572 | and not defined $option{$opt} |
1573 | or defined $optionVars{$opt} |
1574 | and not defined $ {$optionVars{$opt}}) { |
55497cff |
1575 | $val = $default; |
d338d6fe |
1576 | } else { |
1577 | $val = $option{$opt}; |
1578 | } |
55497cff |
1579 | $val |
d338d6fe |
1580 | } |
1581 | |
1582 | sub parse_options { |
1583 | local($_)= @_; |
1584 | while ($_ ne "") { |
1585 | s/^(\w+)(\s*$|\W)// or print($OUT "Invalid option `$_'\n"), last; |
1586 | my ($opt,$sep) = ($1,$2); |
1587 | my $val; |
1588 | if ("?" eq $sep) { |
1589 | print($OUT "Option query `$opt?' followed by non-space `$_'\n"), last |
1590 | if /^\S/; |
1591 | #&dump_option($opt); |
1592 | } elsif ($sep !~ /\S/) { |
1593 | $val = "1"; |
1594 | } elsif ($sep eq "=") { |
1595 | s/^(\S*)($|\s+)//; |
1596 | $val = $1; |
1597 | } else { #{ to "let some poor schmuck bounce on the % key in B<vi>." |
1598 | my ($end) = "\\" . substr( ")]>}$sep", index("([<{",$sep), 1 ); #} |
1599 | s/^(([^\\$end]|\\[\\$end])*)$end($|\s+)// or |
1600 | print($OUT "Unclosed option value `$opt$sep$_'\n"), last; |
1601 | $val = $1; |
1602 | $val =~ s/\\([\\$end])/$1/g; |
1603 | } |
1604 | my ($option); |
1605 | my $matches = |
1606 | grep( /^\Q$opt/ && ($option = $_), @options ); |
1607 | $matches = grep( /^\Q$opt/i && ($option = $_), @options ) |
1608 | unless $matches; |
1609 | print $OUT "Unknown option `$opt'\n" unless $matches; |
1610 | print $OUT "Ambiguous option `$opt'\n" if $matches > 1; |
1611 | $option{$option} = $val if $matches == 1 and defined $val; |
ee971a18 |
1612 | eval "local \$frame = 0; local \$doret = -2; |
1613 | require '$optionRequire{$option}'" |
d338d6fe |
1614 | if $matches == 1 and defined $optionRequire{$option} and defined $val; |
1615 | $ {$optionVars{$option}} = $val |
1616 | if $matches == 1 |
1617 | and defined $optionVars{$option} and defined $val; |
1618 | & {$optionAction{$option}} ($val) |
1619 | if $matches == 1 |
1620 | and defined $optionAction{$option} |
1621 | and defined &{$optionAction{$option}} and defined $val; |
1622 | &dump_option($option) if $matches == 1 && $OUT ne \*STDERR; # Not $rcfile |
1623 | s/^\s+//; |
1624 | } |
1625 | } |
1626 | |
54d04a52 |
1627 | sub set_list { |
1628 | my ($stem,@list) = @_; |
1629 | my $val; |
1630 | $ENV{"$ {stem}_n"} = @list; |
1631 | for $i (0 .. $#list) { |
1632 | $val = $list[$i]; |
1633 | $val =~ s/\\/\\\\/g; |
ee971a18 |
1634 | $val =~ s/([\0-\37\177\200-\377])/"\\0x" . unpack('H2',$1)/eg; |
54d04a52 |
1635 | $ENV{"$ {stem}_$i"} = $val; |
1636 | } |
1637 | } |
1638 | |
1639 | sub get_list { |
1640 | my $stem = shift; |
1641 | my @list; |
1642 | my $n = delete $ENV{"$ {stem}_n"}; |
1643 | my $val; |
1644 | for $i (0 .. $n - 1) { |
1645 | $val = delete $ENV{"$ {stem}_$i"}; |
1646 | $val =~ s/\\((\\)|0x(..))/ $2 ? $2 : pack('H2', $3) /ge; |
1647 | push @list, $val; |
1648 | } |
1649 | @list; |
1650 | } |
1651 | |
d338d6fe |
1652 | sub catch { |
1653 | $signal = 1; |
4639966b |
1654 | return; # Put nothing on the stack - malloc/free land! |
d338d6fe |
1655 | } |
1656 | |
1657 | sub warn { |
1658 | my($msg)= join("",@_); |
1659 | $msg .= ": $!\n" unless $msg =~ /\n$/; |
1660 | print $OUT $msg; |
1661 | } |
1662 | |
1663 | sub TTY { |
f36776d9 |
1664 | if (@_ and $term and $term->Features->{newTTY}) { |
1665 | my ($in, $out) = shift; |
1666 | if ($in =~ /,/) { |
1667 | ($in, $out) = split /,/, $in, 2; |
1668 | } else { |
1669 | $out = $in; |
1670 | } |
1671 | open IN, $in or die "cannot open `$in' for read: $!"; |
1672 | open OUT, ">$out" or die "cannot open `$out' for write: $!"; |
1673 | $term->newTTY(\*IN, \*OUT); |
1674 | $IN = \*IN; |
1675 | $OUT = \*OUT; |
1676 | return $tty = $in; |
1677 | } elsif ($term and @_) { |
1678 | &warn("Too late to set TTY, enabled on next `R'!\n"); |
43aed9ee |
1679 | } |
1680 | $tty = shift if @_; |
d338d6fe |
1681 | $tty or $console; |
1682 | } |
1683 | |
1684 | sub noTTY { |
1685 | if ($term) { |
43aed9ee |
1686 | &warn("Too late to set noTTY, enabled on next `R'!\n") if @_; |
d338d6fe |
1687 | } |
43aed9ee |
1688 | $notty = shift if @_; |
d338d6fe |
1689 | $notty; |
1690 | } |
1691 | |
1692 | sub ReadLine { |
1693 | if ($term) { |
43aed9ee |
1694 | &warn("Too late to set ReadLine, enabled on next `R'!\n") if @_; |
d338d6fe |
1695 | } |
43aed9ee |
1696 | $rl = shift if @_; |
d338d6fe |
1697 | $rl; |
1698 | } |
1699 | |
1d7c1841 |
1700 | sub RemotePort { |
1701 | if ($term) { |
1702 | &warn("Too late to set RemotePort, enabled on next 'R'!\n") if @_; |
1703 | } |
1704 | $remoteport = shift if @_; |
1705 | $remoteport; |
1706 | } |
1707 | |
a737e074 |
1708 | sub tkRunning { |
1709 | if ($ {$term->Features}{tkRunning}) { |
1710 | return $term->tkRunning(@_); |
1711 | } else { |
1712 | print $OUT "tkRunning not supported by current ReadLine package.\n"; |
1713 | 0; |
1714 | } |
1715 | } |
1716 | |
d338d6fe |
1717 | sub NonStop { |
1718 | if ($term) { |
43aed9ee |
1719 | &warn("Too late to set up NonStop mode, enabled on next `R'!\n") if @_; |
d338d6fe |
1720 | } |
43aed9ee |
1721 | $runnonstop = shift if @_; |
d338d6fe |
1722 | $runnonstop; |
1723 | } |
1724 | |
1725 | sub pager { |
1726 | if (@_) { |
1727 | $pager = shift; |
1728 | $pager="|".$pager unless $pager =~ /^(\+?\>|\|)/; |
1729 | } |
1730 | $pager; |
1731 | } |
1732 | |
1733 | sub shellBang { |
1734 | if (@_) { |
1735 | $sh = quotemeta shift; |
1736 | $sh .= "\\b" if $sh =~ /\w$/; |
1737 | } |
1738 | $psh = $sh; |
1739 | $psh =~ s/\\b$//; |
1740 | $psh =~ s/\\(.)/$1/g; |
1741 | &sethelp; |
1742 | $psh; |
1743 | } |
1744 | |
7a2e2cd6 |
1745 | sub ornaments { |
1746 | if (defined $term) { |
1747 | local ($warnLevel,$dieLevel) = (0, 1); |
1748 | return '' unless $term->Features->{ornaments}; |
1749 | eval { $term->ornaments(@_) } || ''; |
1750 | } else { |
1751 | $ornaments = shift; |
1752 | } |
1753 | } |
1754 | |
d338d6fe |
1755 | sub recallCommand { |
1756 | if (@_) { |
1757 | $rc = quotemeta shift; |
1758 | $rc .= "\\b" if $rc =~ /\w$/; |
1759 | } |
1760 | $prc = $rc; |
1761 | $prc =~ s/\\b$//; |
1762 | $prc =~ s/\\(.)/$1/g; |
1763 | &sethelp; |
1764 | $prc; |
1765 | } |
1766 | |
1767 | sub LineInfo { |
1768 | return $lineinfo unless @_; |
1769 | $lineinfo = shift; |
1770 | my $stream = ($lineinfo =~ /^(\+?\>|\|)/) ? $lineinfo : ">$lineinfo"; |
1771 | $emacs = ($stream =~ /^\|/); |
1772 | open(LINEINFO, "$stream") || &warn("Cannot open `$stream' for write"); |
1773 | $LINEINFO = \*LINEINFO; |
1774 | my $save = select($LINEINFO); |
1775 | $| = 1; |
1776 | select($save); |
1777 | $lineinfo; |
1778 | } |
1779 | |
ee971a18 |
1780 | sub list_versions { |
1781 | my %version; |
1782 | my $file; |
1783 | for (keys %INC) { |
1784 | $file = $_; |
1785 | s,\.p[lm]$,,i ; |
1786 | s,/,::,g ; |
1787 | s/^perl5db$/DB/; |
55497cff |
1788 | s/^Term::ReadLine::readline$/readline/; |
ee971a18 |
1789 | if (defined $ { $_ . '::VERSION' }) { |
1790 | $version{$file} = "$ { $_ . '::VERSION' } from "; |
1791 | } |
1792 | $version{$file} .= $INC{$file}; |
1793 | } |
2c53b6d0 |
1794 | dumpit($OUT,\%version); |
ee971a18 |
1795 | } |
1796 | |
d338d6fe |
1797 | sub sethelp { |
1798 | $help = " |
6027b9a3 |
1799 | B<T> Stack trace. |
1800 | B<s> [I<expr>] Single step [in I<expr>]. |
1801 | B<n> [I<expr>] Next, steps over subroutine calls [in I<expr>]. |
1802 | <B<CR>> Repeat last B<n> or B<s> command. |
1803 | B<r> Return from current subroutine. |
1804 | B<c> [I<line>|I<sub>] Continue; optionally inserts a one-time-only breakpoint |
55497cff |
1805 | at the specified position. |
6027b9a3 |
1806 | B<l> I<min>B<+>I<incr> List I<incr>+1 lines starting at I<min>. |
1807 | B<l> I<min>B<->I<max> List lines I<min> through I<max>. |
1808 | B<l> I<line> List single I<line>. |
1809 | B<l> I<subname> List first window of lines from subroutine. |
1810 | B<l> List next window of lines. |
1811 | B<-> List previous window of lines. |
1812 | B<w> [I<line>] List window around I<line>. |
1813 | B<.> Return to the executed line. |
1814 | B<f> I<filename> Switch to viewing I<filename>. Must be loaded. |
1815 | B</>I<pattern>B</> Search forwards for I<pattern>; final B</> is optional. |
1816 | B<?>I<pattern>B<?> Search backwards for I<pattern>; final B<?> is optional. |
1817 | B<L> List all breakpoints and actions. |
1818 | B<S> [[B<!>]I<pattern>] List subroutine names [not] matching I<pattern>. |
1819 | B<t> Toggle trace mode. |
1820 | B<t> I<expr> Trace through execution of I<expr>. |
1821 | B<b> [I<line>] [I<condition>] |
1822 | Set breakpoint; I<line> defaults to the current execution line; |
1823 | I<condition> breaks if it evaluates to true, defaults to '1'. |
1824 | B<b> I<subname> [I<condition>] |
d338d6fe |
1825 | Set breakpoint at first line of subroutine. |
6027b9a3 |
1826 | B<b> B<load> I<filename> Set breakpoint on `require'ing the given file. |
1827 | B<b> B<postpone> I<subname> [I<condition>] |
55497cff |
1828 | Set breakpoint at first line of subroutine after |
1829 | it is compiled. |
6027b9a3 |
1830 | B<b> B<compile> I<subname> |
1d06cb2d |
1831 | Stop after the subroutine is compiled. |
6027b9a3 |
1832 | B<d> [I<line>] Delete the breakpoint for I<line>. |
1833 | B<D> Delete all breakpoints. |
1834 | B<a> [I<line>] I<command> |
1835 | Set an action to be done before the I<line> is executed. |
1836 | Sequence is: check for breakpoint/watchpoint, print line |
1837 | if necessary, do action, prompt user if necessary, |
1838 | execute expression. |
1839 | B<A> Delete all actions. |
1840 | B<W> I<expr> Add a global watch-expression. |
1841 | B<W> Delete all watch-expressions. |
1842 | B<V> [I<pkg> [I<vars>]] List some (default all) variables in package (default current). |
1843 | Use B<~>I<pattern> and B<!>I<pattern> for positive and negative regexps. |
1844 | B<X> [I<vars>] Same as \"B<V> I<currentpackage> [I<vars>]\". |
1845 | B<x> I<expr> Evals expression in array context, dumps the result. |
1846 | B<m> I<expr> Evals expression in array context, prints methods callable |
1d06cb2d |
1847 | on the first element of the result. |
6027b9a3 |
1848 | B<m> I<class> Prints methods callable via the given class. |
1849 | B<O> [I<opt>[B<=>I<val>]] [I<opt>B<\">I<val>B<\">] [I<opt>B<?>]... |
1850 | Set or query values of options. I<val> defaults to 1. I<opt> can |
d338d6fe |
1851 | be abbreviated. Several options can be listed. |
6027b9a3 |
1852 | I<recallCommand>, I<ShellBang>: chars used to recall command or spawn shell; |
1853 | I<pager>: program for output of \"|cmd\"; |
1854 | I<tkRunning>: run Tk while prompting (with ReadLine); |
1855 | I<signalLevel> I<warnLevel> I<dieLevel>: level of verbosity; |
1856 | I<inhibit_exit> Allows stepping off the end of the script. |
3aefca04 |
1857 | I<ImmediateStop> Debugger should stop as early as possible. |
1d7c1841 |
1858 | I<RemotePort>: Remote hostname:port for remote debugging |
6027b9a3 |
1859 | The following options affect what happens with B<V>, B<X>, and B<x> commands: |
1860 | I<arrayDepth>, I<hashDepth>: print only first N elements ('' for all); |
1861 | I<compactDump>, I<veryCompact>: change style of array and hash dump; |
1862 | I<globPrint>: whether to print contents of globs; |
1863 | I<DumpDBFiles>: dump arrays holding debugged files; |
1864 | I<DumpPackages>: dump symbol tables of packages; |
22fae026 |
1865 | I<DumpReused>: dump contents of \"reused\" addresses; |
6027b9a3 |
1866 | I<quote>, I<HighBit>, I<undefPrint>: change style of string dump; |
ee239bfe |
1867 | I<bareStringify>: Do not print the overload-stringified value; |
6027b9a3 |
1868 | Option I<PrintRet> affects printing of return value after B<r> command, |
1869 | I<frame> affects printing messages on entry and exit from subroutines. |
1870 | I<AutoTrace> affects printing messages on every possible breaking point. |
1871 | I<maxTraceLen> gives maximal length of evals/args listed in stack trace. |
1872 | I<ornaments> affects screen appearance of the command line. |
d338d6fe |
1873 | During startup options are initialized from \$ENV{PERLDB_OPTS}. |
6027b9a3 |
1874 | You can put additional initialization options I<TTY>, I<noTTY>, |
1d7c1841 |
1875 | I<ReadLine>, I<NonStop>, and I<RemotePort> there (or use |
1876 | `B<R>' after you set them). |
6027b9a3 |
1877 | B<<> I<expr> Define Perl command to run before each prompt. |
1878 | B<<<> I<expr> Add to the list of Perl commands to run before each prompt. |
1879 | B<>> I<expr> Define Perl command to run after each prompt. |
1880 | B<>>B<>> I<expr> Add to the list of Perl commands to run after each prompt. |
1881 | B<{> I<db_command> Define debugger command to run before each prompt. |
1882 | B<{{> I<db_command> Add to the list of debugger commands to run before each prompt. |
1883 | B<$prc> I<number> Redo a previous command (default previous command). |
1884 | B<$prc> I<-number> Redo number'th-to-last command. |
1885 | B<$prc> I<pattern> Redo last command that started with I<pattern>. |
1886 | See 'B<O> I<recallCommand>' too. |
1887 | B<$psh$psh> I<cmd> Run cmd in a subprocess (reads from DB::IN, writes to DB::OUT)" |
d338d6fe |
1888 | . ( $rc eq $sh ? "" : " |
6027b9a3 |
1889 | B<$psh> [I<cmd>] Run I<cmd> in subshell (forces \"\$SHELL -c 'cmd'\")." ) . " |
1890 | See 'B<O> I<shellBang>' too. |
1891 | B<H> I<-number> Display last number commands (default all). |
1892 | B<p> I<expr> Same as \"I<print {DB::OUT} expr>\" in current package. |
1893 | B<|>I<dbcmd> Run debugger command, piping DB::OUT to current pager. |
1894 | B<||>I<dbcmd> Same as B<|>I<dbcmd> but DB::OUT is temporarilly select()ed as well. |
1895 | B<\=> [I<alias> I<value>] Define a command alias, or list current aliases. |
1896 | I<command> Execute as a perl statement in current package. |
1897 | B<v> Show versions of loaded modules. |
1898 | B<R> Pure-man-restart of debugger, some of debugger state |
55497cff |
1899 | and command-line options may be lost. |
36477c24 |
1900 | Currently the following setting are preserved: |
6027b9a3 |
1901 | history, breakpoints and actions, debugger B<O>ptions |
1902 | and the following command-line options: I<-w>, I<-I>, I<-e>. |
1903 | B<h> [I<db_command>] Get help [on a specific debugger command], enter B<|h> to page. |
d9f67849 |
1904 | Complete description of debugger is available in B<perldebug> |
1905 | section of Perl documention |
6027b9a3 |
1906 | B<h h> Summary of debugger commands. |
405ff068 |
1907 | B<q> or B<^D> Quit. Set B<\$DB::finished = 0> to debug global destruction. |
d338d6fe |
1908 | |
1909 | "; |
1910 | $summary = <<"END_SUM"; |
6027b9a3 |
1911 | I<List/search source lines:> I<Control script execution:> |
1912 | B<l> [I<ln>|I<sub>] List source code B<T> Stack trace |
1913 | B<-> or B<.> List previous/current line B<s> [I<expr>] Single step [in expr] |
1914 | B<w> [I<line>] List around line B<n> [I<expr>] Next, steps over subs |
d9f67849 |
1915 | B<f> I<filename> View source in file <B<CR>/B<Enter>> Repeat last B<n> or B<s> |
6027b9a3 |
1916 | B</>I<pattern>B</> B<?>I<patt>B<?> Search forw/backw B<r> Return from subroutine |
1917 | B<v> Show versions of modules B<c> [I<ln>|I<sub>] Continue until position |
1918 | I<Debugger controls:> B<L> List break/watch/actions |
1919 | B<O> [...] Set debugger options B<t> [I<expr>] Toggle trace [trace expr] |
d9f67849 |
1920 | B<<>[B<<>]|B<{>[B<{>]|B<>>[B<>>] [I<cmd>] Do pre/post-prompt B<b> [I<ln>|I<event>|I<sub>] [I<cnd>] Set breakpoint |
6027b9a3 |
1921 | B<$prc> [I<N>|I<pat>] Redo a previous command B<d> [I<ln>] or B<D> Delete a/all breakpoints |
1922 | B<H> [I<-num>] Display last num commands B<a> [I<ln>] I<cmd> Do cmd before line |
1923 | B<=> [I<a> I<val>] Define/list an alias B<W> I<expr> Add a watch expression |
1924 | B<h> [I<db_cmd>] Get help on command B<A> or B<W> Delete all actions/watch |
d9f67849 |
1925 | B<|>[B<|>]I<db_cmd> Send output to pager B<$psh>\[B<$psh>\] I<syscmd> Run cmd in a subprocess |
6027b9a3 |
1926 | B<q> or B<^D> Quit B<R> Attempt a restart |
1927 | I<Data Examination:> B<expr> Execute perl code, also see: B<s>,B<n>,B<t> I<expr> |
1928 | B<x>|B<m> I<expr> Evals expr in array context, dumps the result or lists methods. |
1929 | B<p> I<expr> Print expression (uses script's current package). |
1930 | B<S> [[B<!>]I<pat>] List subroutine names [not] matching pattern |
1931 | B<V> [I<Pk> [I<Vars>]] List Variables in Package. Vars can be ~pattern or !pattern. |
1932 | B<X> [I<Vars>] Same as \"B<V> I<current_package> [I<Vars>]\". |
d9f67849 |
1933 | I<More help for> B<db_cmd>I<:> Type B<h> I<cmd_letter> Run B<perldoc perldebug> for more help. |
d338d6fe |
1934 | END_SUM |
55497cff |
1935 | # ')}}; # Fix balance of Emacs parsing |
d338d6fe |
1936 | } |
1937 | |
6027b9a3 |
1938 | sub print_help { |
1939 | my $message = shift; |
1940 | if (@Term::ReadLine::TermCap::rl_term_set) { |
1941 | $message =~ s/B<([^>]+|>)>/$Term::ReadLine::TermCap::rl_term_set[2]$1$Term::ReadLine::TermCap::rl_term_set[3]/g; |
1942 | $message =~ s/I<([^>]+|>)>/$Term::ReadLine::TermCap::rl_term_set[0]$1$Term::ReadLine::TermCap::rl_term_set[1]/g; |
1943 | } |
1944 | print $OUT $message; |
1945 | } |
1946 | |
d338d6fe |
1947 | sub diesignal { |
54d04a52 |
1948 | local $frame = 0; |
ee971a18 |
1949 | local $doret = -2; |
77fb7b16 |
1950 | $SIG{'ABRT'} = 'DEFAULT'; |
d338d6fe |
1951 | kill 'ABRT', $$ if $panic++; |
ee85b803 |
1952 | if (defined &Carp::longmess) { |
1953 | local $SIG{__WARN__} = ''; |
1954 | local $Carp::CarpLevel = 2; # mydie + confess |
1955 | &warn(Carp::longmess("Signal @_")); |
1956 | } |
1957 | else { |
1958 | print $DB::OUT "Got signal @_\n"; |
1959 | } |
d338d6fe |
1960 | kill 'ABRT', $$; |
1961 | } |
1962 | |
1963 | sub dbwarn { |
54d04a52 |
1964 | local $frame = 0; |
ee971a18 |
1965 | local $doret = -2; |
d338d6fe |
1966 | local $SIG{__WARN__} = ''; |
77fb7b16 |
1967 | local $SIG{__DIE__} = ''; |
fb73857a |
1968 | eval { require Carp } if defined $^S; # If error/warning during compilation, |
1969 | # require may be broken. |
1970 | warn(@_, "\nCannot print stack trace, load with -MCarp option to see stack"), |
1971 | return unless defined &Carp::longmess; |
d338d6fe |
1972 | my ($mysingle,$mytrace) = ($single,$trace); |
1973 | $single = 0; $trace = 0; |
1974 | my $mess = Carp::longmess(@_); |
1975 | ($single,$trace) = ($mysingle,$mytrace); |
d338d6fe |
1976 | &warn($mess); |
d338d6fe |
1977 | } |
1978 | |
1979 | sub dbdie { |
54d04a52 |
1980 | local $frame = 0; |
ee971a18 |
1981 | local $doret = -2; |
d338d6fe |
1982 | local $SIG{__DIE__} = ''; |
1983 | local $SIG{__WARN__} = ''; |
1984 | my $i = 0; my $ineval = 0; my $sub; |
fb73857a |
1985 | if ($dieLevel > 2) { |
d338d6fe |
1986 | local $SIG{__WARN__} = \&dbwarn; |
fb73857a |
1987 | &warn(@_); # Yell no matter what |
1988 | return; |
1989 | } |
1990 | if ($dieLevel < 2) { |
1991 | die @_ if $^S; # in eval propagate |
d338d6fe |
1992 | } |
fb73857a |
1993 | eval { require Carp } if defined $^S; # If error/warning during compilation, |
1994 | # require may be broken. |
1995 | die(@_, "\nCannot print stack trace, load with -MCarp option to see stack") |
1996 | unless defined &Carp::longmess; |
d338d6fe |
1997 | # We do not want to debug this chunk (automatic disabling works |
1998 | # inside DB::DB, but not in Carp). |
1999 | my ($mysingle,$mytrace) = ($single,$trace); |
2000 | $single = 0; $trace = 0; |
2001 | my $mess = Carp::longmess(@_); |
2002 | ($single,$trace) = ($mysingle,$mytrace); |
d338d6fe |
2003 | die $mess; |
2004 | } |
2005 | |
d338d6fe |
2006 | sub warnLevel { |
2007 | if (@_) { |
2008 | $prevwarn = $SIG{__WARN__} unless $warnLevel; |
2009 | $warnLevel = shift; |
2010 | if ($warnLevel) { |
0b7ed949 |
2011 | $SIG{__WARN__} = \&DB::dbwarn; |
d338d6fe |
2012 | } else { |
2013 | $SIG{__WARN__} = $prevwarn; |
2014 | } |
2015 | } |
2016 | $warnLevel; |
2017 | } |
2018 | |
2019 | sub dieLevel { |
2020 | if (@_) { |
2021 | $prevdie = $SIG{__DIE__} unless $dieLevel; |
2022 | $dieLevel = shift; |
2023 | if ($dieLevel) { |
0b7ed949 |
2024 | $SIG{__DIE__} = \&DB::dbdie; # if $dieLevel < 2; |
2025 | #$SIG{__DIE__} = \&DB::diehard if $dieLevel >= 2; |
d338d6fe |
2026 | print $OUT "Stack dump during die enabled", |
43aed9ee |
2027 | ( $dieLevel == 1 ? " outside of evals" : ""), ".\n" |
2028 | if $I_m_init; |
d338d6fe |
2029 | print $OUT "Dump printed too.\n" if $dieLevel > 2; |
2030 | } else { |
2031 | $SIG{__DIE__} = $prevdie; |
2032 | print $OUT "Default die handler restored.\n"; |
2033 | } |
2034 | } |
2035 | $dieLevel; |
2036 | } |
2037 | |
2038 | sub signalLevel { |
2039 | if (@_) { |
2040 | $prevsegv = $SIG{SEGV} unless $signalLevel; |
2041 | $prevbus = $SIG{BUS} unless $signalLevel; |
2042 | $signalLevel = shift; |
2043 | if ($signalLevel) { |
77fb7b16 |
2044 | $SIG{SEGV} = \&DB::diesignal; |
2045 | $SIG{BUS} = \&DB::diesignal; |
d338d6fe |
2046 | } else { |
2047 | $SIG{SEGV} = $prevsegv; |
2048 | $SIG{BUS} = $prevbus; |
2049 | } |
2050 | } |
2051 | $signalLevel; |
2052 | } |
2053 | |
1d06cb2d |
2054 | sub find_sub { |
2055 | my $subr = shift; |
2056 | return unless defined &$subr; |
2057 | $sub{$subr} or do { |
2058 | $subr = \&$subr; # Hard reference |
2059 | my $s; |
2060 | for (keys %sub) { |
2061 | $s = $_, last if $subr eq \&$_; |
2062 | } |
2063 | $sub{$s} if $s; |
2064 | } |
2065 | } |
2066 | |
2067 | sub methods { |
2068 | my $class = shift; |
2069 | $class = ref $class if ref $class; |
2070 | local %seen; |
2071 | local %packs; |
2072 | methods_via($class, '', 1); |
2073 | methods_via('UNIVERSAL', 'UNIVERSAL', 0); |
2074 | } |
2075 | |
2076 | sub methods_via { |
2077 | my $class = shift; |
2078 | return if $packs{$class}++; |
2079 | my $prefix = shift; |
2080 | my $prepend = $prefix ? "via $prefix: " : ''; |
2081 | my $name; |
2082 | for $name (grep {defined &{$ {"$ {class}::"}{$_}}} |
2083 | sort keys %{"$ {class}::"}) { |
477ea2b1 |
2084 | next if $seen{ $name }++; |
1d06cb2d |
2085 | print $DB::OUT "$prepend$name\n"; |
2086 | } |
2087 | return unless shift; # Recurse? |
2088 | for $name (@{"$ {class}::ISA"}) { |
2089 | $prepend = $prefix ? $prefix . " -> $name" : $name; |
2090 | methods_via($name, $prepend, 1); |
2091 | } |
2092 | } |
2093 | |
d338d6fe |
2094 | # The following BEGIN is very handy if debugger goes havoc, debugging debugger? |
2095 | |
2096 | BEGIN { # This does not compile, alas. |
2097 | $IN = \*STDIN; # For bugs before DB::OUT has been opened |
2098 | $OUT = \*STDERR; # For errors before DB::OUT has been opened |
2099 | $sh = '!'; |
2100 | $rc = ','; |
2101 | @hist = ('?'); |
2102 | $deep = 100; # warning if stack gets this deep |
2103 | $window = 10; |
2104 | $preview = 3; |
2105 | $sub = ''; |
77fb7b16 |
2106 | $SIG{INT} = \&DB::catch; |
ee971a18 |
2107 | # This may be enabled to debug debugger: |
2108 | #$warnLevel = 1 unless defined $warnLevel; |
2109 | #$dieLevel = 1 unless defined $dieLevel; |
2110 | #$signalLevel = 1 unless defined $signalLevel; |
d338d6fe |
2111 | |
2112 | $db_stop = 0; # Compiler warning |
2113 | $db_stop = 1 << 30; |
2114 | $level = 0; # Level of recursive debugging |
55497cff |
2115 | # @stack and $doret are needed in sub sub, which is called for DB::postponed. |
2116 | # Triggers bug (?) in perl is we postpone this until runtime: |
2117 | @postponed = @stack = (0); |
f8b5b99c |
2118 | $stack_depth = 0; # Localized $#stack |
55497cff |
2119 | $doret = -2; |
2120 | $frame = 0; |
d338d6fe |
2121 | } |
2122 | |
54d04a52 |
2123 | BEGIN {$^W = $ini_warn;} # Switch warnings back |
2124 | |
d338d6fe |
2125 | #use Carp; # This did break, left for debuggin |
2126 | |
55497cff |
2127 | sub db_complete { |
08a4aec0 |
2128 | # Specific code for b c l V m f O, &blah, $blah, @blah, %blah |
55497cff |
2129 | my($text, $line, $start) = @_; |
477ea2b1 |
2130 | my ($itext, $search, $prefix, $pack) = |
08a4aec0 |
2131 | ($text, "^\Q$ {'package'}::\E([^:]+)\$"); |
55497cff |
2132 | |
08a4aec0 |
2133 | return sort grep /^\Q$text/, (keys %sub), qw(postpone load compile), # subroutines |
2134 | (map { /$search/ ? ($1) : () } keys %sub) |
2135 | if (substr $line, 0, $start) =~ /^\|*[blc]\s+((postpone|compile)\s+)?$/; |
2136 | return sort grep /^\Q$text/, values %INC # files |
477ea2b1 |
2137 | if (substr $line, 0, $start) =~ /^\|*b\s+load\s+$/; |
08a4aec0 |
2138 | return sort map {($_, db_complete($_ . "::", "V ", 2))} |
2139 | grep /^\Q$text/, map { /^(.*)::$/ ? ($1) : ()} keys %:: # top-packages |
2140 | if (substr $line, 0, $start) =~ /^\|*[Vm]\s+$/ and $text =~ /^\w*$/; |
2141 | return sort map {($_, db_complete($_ . "::", "V ", 2))} |
2142 | grep !/^main::/, |
2143 | grep /^\Q$text/, map { /^(.*)::$/ ? ($prefix . "::$1") : ()} keys %{$prefix . '::'} |
2144 | # packages |
2145 | if (substr $line, 0, $start) =~ /^\|*[Vm]\s+$/ |
2146 | and $text =~ /^(.*[^:])::?(\w*)$/ and $prefix = $1; |
477ea2b1 |
2147 | if ( $line =~ /^\|*f\s+(.*)/ ) { # Loaded files |
2148 | # We may want to complete to (eval 9), so $text may be wrong |
2149 | $prefix = length($1) - length($text); |
2150 | $text = $1; |
08a4aec0 |
2151 | return sort |
2152 | map {substr $_, 2 + $prefix} grep /^_<\Q$text/, (keys %main::), $0 |
477ea2b1 |
2153 | } |
55497cff |
2154 | if ((substr $text, 0, 1) eq '&') { # subroutines |
2155 | $text = substr $text, 1; |
2156 | $prefix = "&"; |
08a4aec0 |
2157 | return sort map "$prefix$_", |
2158 | grep /^\Q$text/, |
2159 | (keys %sub), |
2160 | (map { /$search/ ? ($1) : () } |
2161 | keys %sub); |
55497cff |
2162 | } |
2163 | if ($text =~ /^[\$@%](.*)::(.*)/) { # symbols in a package |
2164 | $pack = ($1 eq 'main' ? '' : $1) . '::'; |
2165 | $prefix = (substr $text, 0, 1) . $1 . '::'; |
2166 | $text = $2; |
2167 | my @out |
2168 | = map "$prefix$_", grep /^\Q$text/, grep /^_?[a-zA-Z]/, keys %$pack ; |
2169 | if (@out == 1 and $out[0] =~ /::$/ and $out[0] ne $itext) { |
2170 | return db_complete($out[0], $line, $start); |
2171 | } |
08a4aec0 |
2172 | return sort @out; |
55497cff |
2173 | } |
2174 | if ($text =~ /^[\$@%]/) { # symbols (in $package + packages in main) |
2175 | $pack = ($package eq 'main' ? '' : $package) . '::'; |
2176 | $prefix = substr $text, 0, 1; |
2177 | $text = substr $text, 1; |
2178 | my @out = map "$prefix$_", grep /^\Q$text/, |
2179 | (grep /^_?[a-zA-Z]/, keys %$pack), |
2180 | ( $pack eq '::' ? () : (grep /::$/, keys %::) ) ; |
2181 | if (@out == 1 and $out[0] =~ /::$/ and $out[0] ne $itext) { |
2182 | return db_complete($out[0], $line, $start); |
2183 | } |
08a4aec0 |
2184 | return sort @out; |
55497cff |
2185 | } |
477ea2b1 |
2186 | if ((substr $line, 0, $start) =~ /^\|*O\b.*\s$/) { # Options after a space |
55497cff |
2187 | my @out = grep /^\Q$text/, @options; |
2188 | my $val = option_val($out[0], undef); |
2189 | my $out = '? '; |
2190 | if (not defined $val or $val =~ /[\n\r]/) { |
2191 | # Can do nothing better |
2192 | } elsif ($val =~ /\s/) { |
2193 | my $found; |
2194 | foreach $l (split //, qq/\"\'\#\|/) { |
2195 | $out = "$l$val$l ", last if (index $val, $l) == -1; |
2196 | } |
2197 | } else { |
2198 | $out = "=$val "; |
2199 | } |
2200 | # Default to value if one completion, to question if many |
a737e074 |
2201 | $rl_attribs->{completer_terminator_character} = (@out == 1 ? $out : '? '); |
08a4aec0 |
2202 | return sort @out; |
55497cff |
2203 | } |
a737e074 |
2204 | return $term->filename_list($text); # filenames |
55497cff |
2205 | } |
2206 | |
43aed9ee |
2207 | sub end_report { |
2208 | print $OUT "Use `q' to quit or `R' to restart. `h q' for details.\n" |
2209 | } |
4639966b |
2210 | |
55497cff |
2211 | END { |
2212 | $finished = $inhibit_exit; # So that some keys may be disabled. |
36477c24 |
2213 | # Do not stop in at_exit() and destructors on exit: |
2214 | $DB::single = !$exiting && !$runnonstop; |
2215 | DB::fake::at_exit() unless $exiting or $runnonstop; |
55497cff |
2216 | } |
2217 | |
2218 | package DB::fake; |
2219 | |
2220 | sub at_exit { |
43aed9ee |
2221 | "Debugged program terminated. Use `q' to quit or `R' to restart."; |
55497cff |
2222 | } |
2223 | |
36477c24 |
2224 | package DB; # Do not trace this 1; below! |
2225 | |
d338d6fe |
2226 | 1; |