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For fastest.pl
  Run on Fri Jan 31 20:48:16 2014
Reported on Fri Jan 31 20:49:40 2014

Filename/opt/perl-5.18.1/lib/5.18.1/darwin-thread-multi-2level/DynaLoader.pm
StatementsExecuted 203 statements in 3.99ms
Subroutines
Calls P F Exclusive
Time
Inclusive
Time
Subroutine
111919µs1.06msDynaLoader::::BEGIN@22DynaLoader::BEGIN@22
511602µs602µsDynaLoader::::dl_load_fileDynaLoader::dl_load_file (xsub)
555399µs1.91msDynaLoader::::bootstrapDynaLoader::bootstrap
1021187µs187µsDynaLoader::::CORE:substDynaLoader::CORE:subst (opcode)
71154µs54µsDynaLoader::::CORE:ftdirDynaLoader::CORE:ftdir (opcode)
102149µs49µsDynaLoader::::dl_find_symbolDynaLoader::dl_find_symbol (xsub)
51132µs32µsDynaLoader::::dl_install_xsubDynaLoader::dl_install_xsub (xsub)
51126µs26µsDynaLoader::::CORE:ftsizeDynaLoader::CORE:ftsize (opcode)
51121µs21µsDynaLoader::::CORE:ftfileDynaLoader::CORE:ftfile (opcode)
11110µs10µsDynaLoader::::BEGIN@18DynaLoader::BEGIN@18
5117µs7µsDynaLoader::::dl_load_flagsDynaLoader::dl_load_flags
5116µs6µsDynaLoader::::dl_undef_symbolsDynaLoader::dl_undef_symbols (xsub)
1116µs6µsDynaLoader::::CORE:regcompDynaLoader::CORE:regcomp (opcode)
0000s0sDynaLoader::::bootstrap_inheritDynaLoader::bootstrap_inherit
0000s0sDynaLoader::::croakDynaLoader::croak
0000s0sDynaLoader::::dl_expandspecDynaLoader::dl_expandspec
0000s0sDynaLoader::::dl_find_symbol_anywhereDynaLoader::dl_find_symbol_anywhere
0000s0sDynaLoader::::dl_findfileDynaLoader::dl_findfile
Call graph for these subroutines as a Graphviz dot language file.
Line State
ments
Time
on line
Calls Time
in subs
Code
1
2# Generated from DynaLoader_pm.PL
3
4package DynaLoader;
5
6# And Gandalf said: 'Many folk like to know beforehand what is to
7# be set on the table; but those who have laboured to prepare the
8# feast like to keep their secret; for wonder makes the words of
9# praise louder.'
10
11# (Quote from Tolkien suggested by Anno Siegel.)
12#
13# See pod text at end of file for documentation.
14# See also ext/DynaLoader/README in source tree for other information.
15#
16# Tim.Bunce@ig.co.uk, August 1994
17
18
# spent 10µs within DynaLoader::BEGIN@18 which was called: # once (10µs+0s) by Data::OptList::BEGIN@10 at line 20
BEGIN {
1919µs $VERSION = '1.18';
20126µs110µs}
# spent 10µs making 1 call to DynaLoader::BEGIN@18
21
2221.96ms21.07ms
# spent 1.06ms (919µs+143µs) within DynaLoader::BEGIN@22 which was called: # once (919µs+143µs) by Data::OptList::BEGIN@10 at line 22
use Config;
# spent 1.06ms making 1 call to DynaLoader::BEGIN@22 # spent 13µs making 1 call to Config::import
23
24# enable debug/trace messages from DynaLoader perl code
2511µs$dl_debug = $ENV{PERL_DL_DEBUG} || 0 unless defined $dl_debug;
26
27#
28# Flags to alter dl_load_file behaviour. Assigned bits:
29# 0x01 make symbols available for linking later dl_load_file's.
30# (only known to work on Solaris 2 using dlopen(RTLD_GLOBAL))
31# (ignored under VMS; effect is built-in to image linking)
32#
33# This is called as a class method $module->dl_load_flags. The
34# definition here will be inherited and result on "default" loading
35# behaviour unless a sub-class of DynaLoader defines its own version.
36#
37
38514µs
# spent 7µs within DynaLoader::dl_load_flags which was called 5 times, avg 1µs/call: # 5 times (7µs+0s) by DynaLoader::bootstrap at line 194, avg 1µs/call
sub dl_load_flags { 0x00 }
39
40114µs38µs($dl_dlext, $dl_so, $dlsrc) = @Config::Config{qw(dlext so dlsrc)};
# spent 8µs making 3 calls to Config::FETCH, avg 2µs/call
41
42
431200ns$do_expand = 0;
44
451900ns@dl_require_symbols = (); # names of symbols we need
461200ns@dl_resolve_using = (); # names of files to link with
471200ns@dl_library_path = (); # path to look for files
48
49#XSLoader.pm may have added elements before we were required
50#@dl_shared_objects = (); # shared objects for symbols we have
51#@dl_librefs = (); # things we have loaded
52#@dl_modules = (); # Modules we have loaded
53
54# This is a fix to support DLD's unfortunate desire to relink -lc
551300ns@dl_resolve_using = dl_findfile('-lc') if $dlsrc eq "dl_dld.xs";
56
57# Initialise @dl_library_path with the 'standard' library path
58# for this platform as determined by Configure.
59
6015µs12µspush(@dl_library_path, split(' ', $Config::Config{libpth}));
# spent 2µs making 1 call to Config::FETCH
61
62
6313µs12µsmy $ldlibpthname = $Config::Config{ldlibpthname};
# spent 2µs making 1 call to Config::FETCH
6413µs12µsmy $ldlibpthname_defined = defined $Config::Config{ldlibpthname};
# spent 2µs making 1 call to Config::FETCH
6513µs12µsmy $pthsep = $Config::Config{path_sep};
# spent 2µs making 1 call to Config::FETCH
66
67# Add to @dl_library_path any extra directories we can gather from environment
68# during runtime.
69
701900nsif ($ldlibpthname_defined &&
71 exists $ENV{$ldlibpthname}) {
72112µs16µs push(@dl_library_path, split(/$pthsep/, $ENV{$ldlibpthname}));
# spent 6µs making 1 call to DynaLoader::CORE:regcomp
73}
74
75# E.g. HP-UX supports both its native SHLIB_PATH *and* LD_LIBRARY_PATH.
76
771600nsif ($ldlibpthname_defined &&
78 $ldlibpthname ne 'LD_LIBRARY_PATH' &&
79 exists $ENV{LD_LIBRARY_PATH}) {
80 push(@dl_library_path, split(/$pthsep/, $ENV{LD_LIBRARY_PATH}));
81}
82
83
84# No prizes for guessing why we don't say 'bootstrap DynaLoader;' here.
85# NOTE: All dl_*.xs (including dl_none.xs) define a dl_error() XSUB
861500nsboot_DynaLoader('DynaLoader') if defined(&boot_DynaLoader) &&
87 !defined(&dl_error);
88
891100nsif ($dl_debug) {
90 print STDERR "DynaLoader.pm loaded (@INC, @dl_library_path)\n";
91 print STDERR "DynaLoader not linked into this perl\n"
92 unless defined(&boot_DynaLoader);
93}
94
95120µs1; # End of main code
96
97
98sub croak { require Carp; Carp::croak(@_) }
99
100sub bootstrap_inherit {
1011900ns my $module = $_[0];
10214µs local *isa = *{"$module\::ISA"};
103112µs local @isa = (@isa, 'DynaLoader');
104 # Cannot goto due to delocalization. Will report errors on a wrong line?
10517µs1598µs bootstrap(@_);
# spent 598µs making 1 call to DynaLoader::bootstrap
106}
107
108
# spent 1.91ms (399µs+1.51) within DynaLoader::bootstrap which was called 5 times, avg 383µs/call: # once (84µs+514µs) by Moose::Exporter::BEGIN@13 at line 105 # once (95µs+268µs) by Data::OptList::BEGIN@10 at line 88 of Params/Util.pm # once (70µs+289µs) by List::MoreUtils::BEGIN@9 at line 36 of List/MoreUtils.pm # once (87µs+244µs) by Benchmark::BEGIN@453 at line 66 of Time/HiRes.pm # once (64µs+200µs) by Try::Tiny::BEGIN@1 at line 55 of Sub/Name.pm
sub bootstrap {
109 # use local vars to enable $module.bs script to edit values
11057µs local(@args) = @_;
11154µs local($module) = $args[0];
11253µs local(@dirs, $file);
113
11451µs unless ($module) {
115 require Carp;
116 Carp::confess("Usage: DynaLoader::bootstrap(module)");
117 }
118
119 # A common error on platforms which don't support dynamic loading.
120 # Since it's fatal and potentially confusing we give a detailed message.
12152µs croak("Can't load module $module, dynamic loading not available in this perl.\n".
122 " (You may need to build a new perl executable which either supports\n".
123 " dynamic loading or has the $module module statically linked into it.)\n")
124 unless defined(&dl_load_file);
125
- -
128515µs my @modparts = split(/::/,$module);
12953µs my $modfname = $modparts[-1];
130
131 # Some systems have restrictions on files names for DLL's etc.
132 # mod2fname returns appropriate file base name (typically truncated)
133 # It may also edit @modparts if required.
13452µs $modfname = &mod2fname(\@modparts) if defined &mod2fname;
135
136
137
13855µs my $modpname = join('/',@modparts);
139
14052µs print STDERR "DynaLoader::bootstrap for $module ",
141 "(auto/$modpname/$modfname.$dl_dlext)\n"
142 if $dl_debug;
143
14455µs foreach (@INC) {
145
14675µs my $dir = "$_/auto/$modpname";
147
148782µs754µs next unless -d $dir; # skip over uninteresting directories
# spent 54µs making 7 calls to DynaLoader::CORE:ftdir, avg 8µs/call
149
150 # check for common cases to avoid autoload of dl_findfile
15157µs my $try = "$dir/$modfname.$dl_dlext";
152545µs521µs last if $file = ($do_expand) ? dl_expandspec($try) : ((-f $try) && $try);
# spent 21µs making 5 calls to DynaLoader::CORE:ftfile, avg 4µs/call
153
154 # no luck here, save dir for possible later dl_findfile search
155 push @dirs, $dir;
156 }
157 # last resort, let dl_findfile have a go in all known locations
1585800ns $file = dl_findfile(map("-L$_",@dirs,@INC), $modfname) unless $file;
159
1605700ns croak("Can't locate loadable object for module $module in \@INC (\@INC contains: @INC)")
161 unless $file; # wording similar to error from 'require'
162
163
16453µs my $bootname = "boot_$module";
165530µs516µs $bootname =~ s/\W/_/g;
# spent 16µs making 5 calls to DynaLoader::CORE:subst, avg 3µs/call
16657µs @dl_require_symbols = ($bootname);
167
168 # Execute optional '.bootstrap' perl script for this module.
169 # The .bs file can be used to configure @dl_resolve_using etc to
170 # match the needs of the individual module on this architecture.
17152µs my $bs = $file;
1725183µs5171µs $bs =~ s/(\.\w+)?(;\d*)?$/\.bs/; # look for .bs 'beside' the library
# spent 171µs making 5 calls to DynaLoader::CORE:subst, avg 34µs/call
173540µs526µs if (-s $bs) { # only read file if it's not empty
# spent 26µs making 5 calls to DynaLoader::CORE:ftsize, avg 5µs/call
174 print STDERR "BS: $bs ($^O, $dlsrc)\n" if $dl_debug;
175 eval { do $bs; };
176 warn "$bs: $@\n" if $@;
177 }
178
1795500ns my $boot_symbol_ref;
180
181
182559µs539µs if ($boot_symbol_ref = dl_find_symbol(0, $bootname)) {
# spent 39µs making 5 calls to DynaLoader::dl_find_symbol, avg 8µs/call
183 goto boot; #extension library has already been loaded, e.g. darwin
184 }
185
186
187 # Many dynamic extension loading problems will appear to come from
188 # this section of code: XYZ failed at line 123 of DynaLoader.pm.
189 # Often these errors are actually occurring in the initialisation
190 # C code of the extension XS file. Perl reports the error as being
191 # in this perl code simply because this was the last perl code
192 # it executed.
193
1945664µs10610µs my $libref = dl_load_file($file, $module->dl_load_flags) or
# spent 602µs making 5 calls to DynaLoader::dl_load_file, avg 120µs/call # spent 7µs making 5 calls to DynaLoader::dl_load_flags, avg 1µs/call
195 croak("Can't load '$file' for module $module: ".dl_error());
196
19757µs push(@dl_librefs,$libref); # record loaded object
198
199525µs56µs my @unresolved = dl_undef_symbols();
# spent 6µs making 5 calls to DynaLoader::dl_undef_symbols, avg 1µs/call
20052µs if (@unresolved) {
201 require Carp;
202 Carp::carp("Undefined symbols present after loading $file: @unresolved\n");
203 }
204
205523µs510µs $boot_symbol_ref = dl_find_symbol($libref, $bootname) or
# spent 10µs making 5 calls to DynaLoader::dl_find_symbol, avg 2µs/call
206 croak("Can't find '$bootname' symbol in $file\n");
207
20856µs push(@dl_modules, $module); # record loaded module
209
210551µs532µs boot:
# spent 32µs making 5 calls to DynaLoader::dl_install_xsub, avg 6µs/call
211 my $xs = dl_install_xsub("${module}::bootstrap", $boot_symbol_ref, $file);
212
213 # See comment block above
214
21554µs push(@dl_shared_objects, $file); # record files loaded
216
2175600µs5531µs &$xs(@args);
# spent 296µs making 1 call to Moose::bootstrap # spent 102µs making 1 call to List::MoreUtils::bootstrap # spent 62µs making 1 call to Time::HiRes::bootstrap # spent 48µs making 1 call to Params::Util::bootstrap # spent 23µs making 1 call to Sub::Name::bootstrap
218}
219
220sub dl_findfile {
221 # Read ext/DynaLoader/DynaLoader.doc for detailed information.
222 # This function does not automatically consider the architecture
223 # or the perl library auto directories.
224 my (@args) = @_;
225 my (@dirs, $dir); # which directories to search
226 my (@found); # full paths to real files we have found
227 #my $dl_ext= 'bundle'; # $Config::Config{'dlext'} suffix for perl extensions
228 #my $dl_so = 'dylib'; # $Config::Config{'so'} suffix for shared libraries
229
230 print STDERR "dl_findfile(@args)\n" if $dl_debug;
231
232 # accumulate directories but process files as they appear
233 arg: foreach(@args) {
234 # Special fast case: full filepath requires no search
235
236
237 if (m:/: && -f $_) {
238 push(@found,$_);
239 last arg unless wantarray;
240 next;
241 }
242
243
244 # Deal with directories first:
245 # Using a -L prefix is the preferred option (faster and more robust)
246 if (m:^-L:) { s/^-L//; push(@dirs, $_); next; }
247
248 # Otherwise we try to try to spot directories by a heuristic
249 # (this is a more complicated issue than it first appears)
250 if (m:/: && -d $_) { push(@dirs, $_); next; }
251
252
253
254 # Only files should get this far...
255 my(@names, $name); # what filenames to look for
256 if (m:-l: ) { # convert -lname to appropriate library name
257 s/-l//;
258 push(@names,"lib$_.$dl_so");
259 push(@names,"lib$_.a");
260 } else { # Umm, a bare name. Try various alternatives:
261 # these should be ordered with the most likely first
262 push(@names,"$_.$dl_dlext") unless m/\.$dl_dlext$/o;
263 push(@names,"$_.$dl_so") unless m/\.$dl_so$/o;
264
265 push(@names,"lib$_.$dl_so") unless m:/:;
266 push(@names,"$_.a") if !m/\.a$/ and $dlsrc eq "dl_dld.xs";
267 push(@names, $_);
268 }
269 my $dirsep = '/';
270
271 foreach $dir (@dirs, @dl_library_path) {
272 next unless -d $dir;
273
274 foreach $name (@names) {
275 my($file) = "$dir$dirsep$name";
276 print STDERR " checking in $dir for $name\n" if $dl_debug;
277 $file = ($do_expand) ? dl_expandspec($file) : (-f $file && $file);
278 #$file = _check_file($file);
279 if ($file) {
280 push(@found, $file);
281 next arg; # no need to look any further
282 }
283 }
284 }
285 }
286 if ($dl_debug) {
287 foreach(@dirs) {
288 print STDERR " dl_findfile ignored non-existent directory: $_\n" unless -d $_;
289 }
290 print STDERR "dl_findfile found: @found\n";
291 }
292 return $found[0] unless wantarray;
293 @found;
294}
295
- -
298sub dl_expandspec {
299 my($spec) = @_;
300 # Optional function invoked if DynaLoader.pm sets $do_expand.
301 # Most systems do not require or use this function.
302 # Some systems may implement it in the dl_*.xs file in which case
303 # this Perl version should be excluded at build time.
304
305 # This function is designed to deal with systems which treat some
306 # 'filenames' in a special way. For example VMS 'Logical Names'
307 # (something like unix environment variables - but different).
308 # This function should recognise such names and expand them into
309 # full file paths.
310 # Must return undef if $spec is invalid or file does not exist.
311
312 my $file = $spec; # default output to input
313
314 return undef unless -f $file;
315 print STDERR "dl_expandspec($spec) => $file\n" if $dl_debug;
316 $file;
317}
318
319sub dl_find_symbol_anywhere
320{
321 my $sym = shift;
322 my $libref;
323 foreach $libref (@dl_librefs) {
324 my $symref = dl_find_symbol($libref,$sym);
325 return $symref if $symref;
326 }
327 return undef;
328}
329
330__END__
 
# spent 54µs within DynaLoader::CORE:ftdir which was called 7 times, avg 8µs/call: # 7 times (54µs+0s) by DynaLoader::bootstrap at line 148, avg 8µs/call
sub DynaLoader::CORE:ftdir; # opcode
# spent 21µs within DynaLoader::CORE:ftfile which was called 5 times, avg 4µs/call: # 5 times (21µs+0s) by DynaLoader::bootstrap at line 152, avg 4µs/call
sub DynaLoader::CORE:ftfile; # opcode
# spent 26µs within DynaLoader::CORE:ftsize which was called 5 times, avg 5µs/call: # 5 times (26µs+0s) by DynaLoader::bootstrap at line 173, avg 5µs/call
sub DynaLoader::CORE:ftsize; # opcode
# spent 6µs within DynaLoader::CORE:regcomp which was called: # once (6µs+0s) by Data::OptList::BEGIN@10 at line 72
sub DynaLoader::CORE:regcomp; # opcode
# spent 187µs within DynaLoader::CORE:subst which was called 10 times, avg 19µs/call: # 5 times (171µs+0s) by DynaLoader::bootstrap at line 172, avg 34µs/call # 5 times (16µs+0s) by DynaLoader::bootstrap at line 165, avg 3µs/call
sub DynaLoader::CORE:subst; # opcode
# spent 49µs within DynaLoader::dl_find_symbol which was called 10 times, avg 5µs/call: # 5 times (39µs+0s) by DynaLoader::bootstrap at line 182, avg 8µs/call # 5 times (10µs+0s) by DynaLoader::bootstrap at line 205, avg 2µs/call
sub DynaLoader::dl_find_symbol; # xsub
# spent 32µs within DynaLoader::dl_install_xsub which was called 5 times, avg 6µs/call: # 5 times (32µs+0s) by DynaLoader::bootstrap at line 210, avg 6µs/call
sub DynaLoader::dl_install_xsub; # xsub
# spent 602µs within DynaLoader::dl_load_file which was called 5 times, avg 120µs/call: # 5 times (602µs+0s) by DynaLoader::bootstrap at line 194, avg 120µs/call
sub DynaLoader::dl_load_file; # xsub
# spent 6µs within DynaLoader::dl_undef_symbols which was called 5 times, avg 1µs/call: # 5 times (6µs+0s) by DynaLoader::bootstrap at line 199, avg 1µs/call
sub DynaLoader::dl_undef_symbols; # xsub