Profile of DynaLoader.pm

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For t/app_dpath.t
Run on Tue Jun 5 15:25:28 2012
Reported on Tue Jun 5 15:26:06 2012

Filename | /home/ss5/perl5/perlbrew/perls/perl-5.14.1/lib/5.14.1/x86_64-linux-thread-multi/DynaLoader.pm
Statements | Executed 55 statements in 7.97ms

Subroutines
Calls | P | F | Exclusive Time | Inclusive Time | Subroutine
--- | --- | --- | --- | --- | ---
1 | 1 | 1 | 361µs | 1.13ms | DynaLoader::::bootstrapDynaLoader::bootstrap
1 | 1 | 1 | 268µs | 268µs | DynaLoader::::dl_load_fileDynaLoader::dl_load_file (xsub)
2 | 2 | 1 | 174µs | 174µs | DynaLoader::::CORE:substDynaLoader::CORE:subst (opcode)
2 | 1 | 1 | 59µs | 59µs | DynaLoader::::CORE:ftdirDynaLoader::CORE:ftdir (opcode)
1 | 1 | 1 | 46µs | 46µs | DynaLoader::::BEGIN@18DynaLoader::BEGIN@18
1 | 1 | 1 | 41µs | 110µs | DynaLoader::::BEGIN@22DynaLoader::BEGIN@22
1 | 1 | 1 | 32µs | 32µs | DynaLoader::::dl_install_xsubDynaLoader::dl_install_xsub (xsub)
1 | 1 | 1 | 18µs | 18µs | DynaLoader::::CORE:ftsizeDynaLoader::CORE:ftsize (opcode)
1 | 1 | 1 | 15µs | 15µs | DynaLoader::::CORE:ftfileDynaLoader::CORE:ftfile (opcode)
1 | 1 | 1 | 10µs | 10µs | DynaLoader::::dl_find_symbolDynaLoader::dl_find_symbol (xsub)
1 | 1 | 1 | 7µs | 7µs | DynaLoader::::dl_load_flagsDynaLoader::dl_load_flags
1 | 1 | 1 | 5µs | 5µs | DynaLoader::::dl_undef_symbolsDynaLoader::dl_undef_symbols (xsub)
0 | 0 | 0 | 0s | 0s | DynaLoader::::bootstrap_inheritDynaLoader::bootstrap_inherit
0 | 0 | 0 | 0s | 0s | DynaLoader::::croakDynaLoader::croak
0 | 0 | 0 | 0s | 0s | DynaLoader::::dl_expandspecDynaLoader::dl_expandspec
0 | 0 | 0 | 0s | 0s | DynaLoader::::dl_find_symbol_anywhereDynaLoader::dl_find_symbol_anywhere
0 | 0 | 0 | 0s | 0s | DynaLoader::::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 |  |  |  |  |
4 |  |  |  |  | package 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 46µs within DynaLoader::BEGIN@18 which was called: # once (46µs+0s) by main::BEGIN@13 at line 20 BEGIN {
19 | 1 | 28µs |  |  | $VERSION = '1.13';
20 | 1 | 85µs | 1 | 46µs | } # spent 46µs making 1 call to DynaLoader::BEGIN@18
21 |  |  |  |  |
22 | 2 | 6.49ms | 2 | 180µs | # spent 110µs (41+69) within DynaLoader::BEGIN@22 which was called: # once (41µs+69µs) by main::BEGIN@13 at line 22 use Config; # spent 110µs making 1 call to DynaLoader::BEGIN@22 # spent 69µs making 1 call to Config::import
23 |  |  |  |  |
24 |  |  |  |  | # enable debug/trace messages from DynaLoader perl code
25 | 1 | 8µs |  |  | $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 $module->dl_load_flags. The
34 |  |  |  |  | # definition here will be inherited and result on "default" loading
35 |  |  |  |  | # behaviour unless a sub-class of DynaLoader defines its own version.
36 |  |  |  |  | #
37 |  |  |  |  |
38 | 1 | 14µs |  |  | # spent 7µs within DynaLoader::dl_load_flags which was called: # once (7µs+0s) by DynaLoader::bootstrap at line 190 sub dl_load_flags { 0x00 }
39 |  |  |  |  |
40 | 1 | 67µs | 3 | 44µs | ($dl_dlext, $dl_so, $dlsrc) = @Config::Config{qw(dlext so dlsrc)}; # spent 44µs making 3 calls to Config::FETCH, avg 15µs/call
41 |  |  |  |  |
42 |  |  |  |  |
43 | 1 | 1µs |  |  | $do_expand = 0;
44 |  |  |  |  |
45 | 1 | 3µs |  |  | @dl_require_symbols = (); # names of symbols we need
46 | 1 | 1µs |  |  | @dl_resolve_using = (); # names of files to link with
47 | 1 | 1µs |  |  | @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
55 | 1 | 2µs |  |  | @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 |  |  |  |  |
60 | 1 | 25µs | 1 | 10µs | push(@dl_library_path, split(' ', $Config::Config{libpth})); # spent 10µs making 1 call to Config::FETCH
61 |  |  |  |  |
62 |  |  |  |  |
63 | 1 | 14µs | 1 | 9µs | my $ldlibpthname = $Config::Config{ldlibpthname}; # spent 9µs making 1 call to Config::FETCH
64 | 1 | 14µs | 1 | 9µs | my $ldlibpthname_defined = defined $Config::Config{ldlibpthname}; # spent 9µs making 1 call to Config::FETCH
65 | 1 | 14µs | 1 | 9µs | my $pthsep = $Config::Config{path_sep}; # spent 9µs making 1 call to Config::FETCH
66 |  |  |  |  |
67 |  |  |  |  | # Add to @dl_library_path any extra directories we can gather from environment
68 |  |  |  |  | # during runtime.
69 |  |  |  |  |
70 | 1 | 3µs |  |  | if ($ldlibpthname_defined &&
71 |  |  |  |  | exists $ENV{$ldlibpthname}) {
72 |  |  |  |  | push(@dl_library_path, split(/$pthsep/, $ENV{$ldlibpthname}));
73 |  |  |  |  | }
74 |  |  |  |  |
75 |  |  |  |  | # E.g. HP-UX supports both its native SHLIB_PATH *and* LD_LIBRARY_PATH.
76 |  |  |  |  |
77 | 1 | 1µs |  |  | if ($ldlibpthname_defined &&
78 |  |  |  |  | $ldlibpthname ne 'LD_LIBRARY_PATH' &&
79 |  |  |  |  | exists $ENV{LD_LIBRARY_PATH}) {
80 |  |  |  |  | push(@dl_library_path, split(/$pthsep/, $ENV{LD_LIBRARY_PATH}));
81 |  |  |  |  | }
82 |  |  |  |  |
83 |  |  |  |  |
84 |  |  |  |  | # No prizes for guessing why we don't say 'bootstrap DynaLoader;' here.
85 |  |  |  |  | # NOTE: All dl_*.xs (including dl_none.xs) define a dl_error() XSUB
86 | 1 | 4µs |  |  | boot_DynaLoader('DynaLoader') if defined(&boot_DynaLoader) &&
87 |  |  |  |  | !defined(&dl_error);
88 |  |  |  |  |
89 | 1 | 600ns |  |  | if ($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 |  |  |  |  |
95 | 1 | 72µs |  |  | 1; # End of main code
96 |  |  |  |  |
97 |  |  |  |  |
98 |  |  |  |  | sub croak { require Carp; Carp::croak(@_) }
99 |  |  |  |  |
100 |  |  |  |  | sub bootstrap_inherit {
101 |  |  |  |  | my $module = $_[0];
102 |  |  |  |  | local *isa = *{"$module\::ISA"};
103 |  |  |  |  | local @isa = (@isa, 'DynaLoader');
104 |  |  |  |  | # Cannot goto due to delocalization. Will report errors on a wrong line?
105 |  |  |  |  | bootstrap(@_);
106 |  |  |  |  | }
107 |  |  |  |  |
108 |  |  |  |  | # spent 1.13ms (361µs+765µs) within DynaLoader::bootstrap which was called: # once (361µs+765µs) by main::BEGIN@13 at line 29 of Data/Structure/Util.pm sub bootstrap {
109 |  |  |  |  | # use local vars to enable $module.bs script to edit values
110 | 29 | 966µs |  |  | local(@args) = @_;
111 |  |  |  |  | local($module) = $args[0];
112 |  |  |  |  | local(@dirs, $file);
113 |  |  |  |  |
114 |  |  |  |  | unless ($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.
121 |  |  |  |  | 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 $module module statically linked into it.)\n")
124 |  |  |  |  | unless defined(&dl_load_file);
125 |  |  |  |  |
- - |  |  |  |  |
128 |  |  |  |  | my @modparts = split(/::/,$module);
129 |  |  |  |  | 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.
134 |  |  |  |  | $modfname = &mod2fname(\@modparts) if defined &mod2fname;
135 |  |  |  |  |
136 |  |  |  |  |
137 |  |  |  |  |
138 |  |  |  |  | my $modpname = join('/',@modparts);
139 |  |  |  |  |
140 |  |  |  |  | print STDERR "DynaLoader::bootstrap for $module ",
141 |  |  |  |  | "(auto/$modpname/$modfname.$dl_dlext)\n"
142 |  |  |  |  | if $dl_debug;
143 |  |  |  |  |
144 |  |  |  |  | foreach (@INC) {
145 |  |  |  |  |
146 | 6 | 152µs |  |  | my $dir = "$_/auto/$modpname";
147 |  |  |  |  |
148 |  |  | 2 | 59µs | next unless -d $dir; # skip over uninteresting directories # spent 59µs making 2 calls to DynaLoader::CORE:ftdir, avg 30µs/call
149 |  |  |  |  |
150 |  |  |  |  | # check for common cases to avoid autoload of dl_findfile
151 |  |  |  |  | my $try = "$dir/$modfname.$dl_dlext";
152 |  |  | 1 | 15µs | last if $file = ($do_expand) ? dl_expandspec($try) : ((-f $try) && $try); # spent 15µs making 1 call to DynaLoader::CORE:ftfile
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
158 |  |  |  |  | $file = dl_findfile(map("-L$_",@dirs,@INC), $modfname) unless $file;
159 |  |  |  |  |
160 |  |  |  |  | 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 |  |  |  |  |
164 |  |  |  |  | my $bootname = "boot_$module";
165 |  |  | 1 | 20µs | $bootname =~ s/\W/_/g; # spent 20µs making 1 call to DynaLoader::CORE:subst
166 |  |  |  |  | @dl_require_symbols = ($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.
171 |  |  |  |  | my $bs = $file;
172 |  |  | 1 | 154µs | $bs =~ s/(\.\w+)?(;\d*)?$/\.bs/; # look for .bs 'beside' the library # spent 154µs making 1 call to DynaLoader::CORE:subst
173 |  |  | 1 | 18µs | if (-s $bs) { # only read file if it's not empty # spent 18µs making 1 call to DynaLoader::CORE:ftsize
174 |  |  |  |  | print STDERR "BS: $bs ($^O, $dlsrc)\n" if $dl_debug;
175 |  |  |  |  | eval { do $bs; };
176 |  |  |  |  | warn "$bs: $@\n" if $@;
177 |  |  |  |  | }
178 |  |  |  |  |
179 |  |  |  |  | my $boot_symbol_ref;
180 |  |  |  |  |
181 |  |  |  |  |
182 |  |  |  |  |
183 |  |  |  |  | # Many dynamic extension loading problems will appear to come from
184 |  |  |  |  | # this section of code: XYZ failed at line 123 of DynaLoader.pm.
185 |  |  |  |  | # Often these errors are actually occurring in the initialisation
186 |  |  |  |  | # C code of the extension XS file. Perl reports the error as being
187 |  |  |  |  | # in this perl code simply because this was the last perl code
188 |  |  |  |  | # it executed.
189 |  |  |  |  |
190 |  |  | 2 | 274µs | my $libref = dl_load_file($file, $module->dl_load_flags) or # spent 268µs making 1 call to DynaLoader::dl_load_file # spent 7µs making 1 call to DynaLoader::dl_load_flags
191 |  |  |  |  | croak("Can't load '$file' for module $module: ".dl_error());
192 |  |  |  |  |
193 |  |  |  |  | push(@dl_librefs,$libref); # record loaded object
194 |  |  |  |  |
195 |  |  | 1 | 5µs | my @unresolved = dl_undef_symbols(); # spent 5µs making 1 call to DynaLoader::dl_undef_symbols
196 |  |  |  |  | if (@unresolved) {
197 |  |  |  |  | require Carp;
198 |  |  |  |  | Carp::carp("Undefined symbols present after loading $file: @unresolved\n");
199 |  |  |  |  | }
200 |  |  |  |  |
201 |  |  | 1 | 10µs | $boot_symbol_ref = dl_find_symbol($libref, $bootname) or # spent 10µs making 1 call to DynaLoader::dl_find_symbol
202 |  |  |  |  | croak("Can't find '$bootname' symbol in $file\n");
203 |  |  |  |  |
204 |  |  |  |  | push(@dl_modules, $module); # record loaded module
205 |  |  |  |  |
206 |  |  | 1 | 32µs | boot: # spent 32µs making 1 call to DynaLoader::dl_install_xsub
207 |  |  |  |  | my $xs = dl_install_xsub("${module}::bootstrap", $boot_symbol_ref, $file);
208 |  |  |  |  |
209 |  |  |  |  | # See comment block above
210 |  |  |  |  |
211 |  |  |  |  | push(@dl_shared_objects, $file); # record files loaded
212 |  |  |  |  |
213 |  |  | 1 | 180µs | &$xs(@args); # spent 180µs making 1 call to Data::Structure::Util::bootstrap
214 |  |  |  |  | }
215 |  |  |  |  |
216 |  |  |  |  | sub dl_findfile {
217 |  |  |  |  | # Read ext/DynaLoader/DynaLoader.doc for detailed information.
218 |  |  |  |  | # This function does not automatically consider the architecture
219 |  |  |  |  | # or the perl library auto directories.
220 |  |  |  |  | my (@args) = @_;
221 |  |  |  |  | my (@dirs, $dir); # which directories to search
222 |  |  |  |  | my (@found); # full paths to real files we have found
223 |  |  |  |  | #my $dl_ext= 'so'; # $Config::Config{'dlext'} suffix for perl extensions
224 |  |  |  |  | #my $dl_so = 'so'; # $Config::Config{'so'} suffix for shared libraries
225 |  |  |  |  |
226 |  |  |  |  | print STDERR "dl_findfile(@args)\n" if $dl_debug;
227 |  |  |  |  |
228 |  |  |  |  | # accumulate directories but process files as they appear
229 |  |  |  |  | arg: foreach(@args) {
230 |  |  |  |  | # Special fast case: full filepath requires no search
231 |  |  |  |  |
232 |  |  |  |  |
233 |  |  |  |  | if (m:/: && -f $_) {
234 |  |  |  |  | push(@found,$_);
235 |  |  |  |  | last arg unless wantarray;
236 |  |  |  |  | next;
237 |  |  |  |  | }
238 |  |  |  |  |
239 |  |  |  |  |
240 |  |  |  |  | # Deal with directories first:
241 |  |  |  |  | # Using a -L prefix is the preferred option (faster and more robust)
242 |  |  |  |  | if (m:^-L:) { s/^-L//; push(@dirs, $_); next; }
243 |  |  |  |  |
244 |  |  |  |  | # Otherwise we try to try to spot directories by a heuristic
245 |  |  |  |  | # (this is a more complicated issue than it first appears)
246 |  |  |  |  | if (m:/: && -d $_) { push(@dirs, $_); next; }
247 |  |  |  |  |
248 |  |  |  |  |
249 |  |  |  |  |
250 |  |  |  |  | # Only files should get this far...
251 |  |  |  |  | my(@names, $name); # what filenames to look for
252 |  |  |  |  | if (m:-l: ) { # convert -lname to appropriate library name
253 |  |  |  |  | s/-l//;
254 |  |  |  |  | push(@names,"lib$_.$dl_so");
255 |  |  |  |  | push(@names,"lib$_.a");
256 |  |  |  |  | } else { # Umm, a bare name. Try various alternatives:
257 |  |  |  |  | # these should be ordered with the most likely first
258 |  |  |  |  | push(@names,"$_.$dl_dlext") unless m/\.$dl_dlext$/o;
259 |  |  |  |  | push(@names,"$_.$dl_so") unless m/\.$dl_so$/o;
260 |  |  |  |  |
261 |  |  |  |  | push(@names,"lib$_.$dl_so") unless m:/:;
262 |  |  |  |  | push(@names,"$_.a") if !m/\.a$/ and $dlsrc eq "dl_dld.xs";
263 |  |  |  |  | push(@names, $_);
264 |  |  |  |  | }
265 |  |  |  |  | my $dirsep = '/';
266 |  |  |  |  |
267 |  |  |  |  | foreach $dir (@dirs, @dl_library_path) {
268 |  |  |  |  | next unless -d $dir;
269 |  |  |  |  |
270 |  |  |  |  | foreach $name (@names) {
271 |  |  |  |  | my($file) = "$dir$dirsep$name";
272 |  |  |  |  | print STDERR " checking in $dir for $name\n" if $dl_debug;
273 |  |  |  |  | $file = ($do_expand) ? dl_expandspec($file) : (-f $file && $file);
274 |  |  |  |  | #$file = _check_file($file);
275 |  |  |  |  | if ($file) {
276 |  |  |  |  | push(@found, $file);
277 |  |  |  |  | next arg; # no need to look any further
278 |  |  |  |  | }
279 |  |  |  |  | }
280 |  |  |  |  | }
281 |  |  |  |  | }
282 |  |  |  |  | if ($dl_debug) {
283 |  |  |  |  | foreach(@dirs) {
284 |  |  |  |  | print STDERR " dl_findfile ignored non-existent directory: $_\n" unless -d $_;
285 |  |  |  |  | }
286 |  |  |  |  | print STDERR "dl_findfile found: @found\n";
287 |  |  |  |  | }
288 |  |  |  |  | return $found[0] unless wantarray;
289 |  |  |  |  | @found;
290 |  |  |  |  | }
291 |  |  |  |  |
- - |  |  |  |  |
294 |  |  |  |  | sub dl_expandspec {
295 |  |  |  |  | my($spec) = @_;
296 |  |  |  |  | # Optional function invoked if DynaLoader.pm sets $do_expand.
297 |  |  |  |  | # Most systems do not require or use this function.
298 |  |  |  |  | # Some systems may implement it in the dl_*.xs file in which case
299 |  |  |  |  | # this Perl version should be excluded at build time.
300 |  |  |  |  |
301 |  |  |  |  | # This function is designed to deal with systems which treat some
302 |  |  |  |  | # 'filenames' in a special way. For example VMS 'Logical Names'
303 |  |  |  |  | # (something like unix environment variables - but different).
304 |  |  |  |  | # This function should recognise such names and expand them into
305 |  |  |  |  | # full file paths.
306 |  |  |  |  | # Must return undef if $spec is invalid or file does not exist.
307 |  |  |  |  |
308 |  |  |  |  | my $file = $spec; # default output to input
309 |  |  |  |  |
310 |  |  |  |  | return undef unless -f $file;
311 |  |  |  |  | print STDERR "dl_expandspec($spec) => $file\n" if $dl_debug;
312 |  |  |  |  | $file;
313 |  |  |  |  | }
314 |  |  |  |  |
315 |  |  |  |  | sub dl_find_symbol_anywhere
316 |  |  |  |  | {
317 |  |  |  |  | my $sym = shift;
318 |  |  |  |  | my $libref;
319 |  |  |  |  | foreach $libref (@dl_librefs) {
320 |  |  |  |  | my $symref = dl_find_symbol($libref,$sym);
321 |  |  |  |  | return $symref if $symref;
322 |  |  |  |  | }
323 |  |  |  |  | return undef;
324 |  |  |  |  | }
325 |  |  |  |  |
326 |  |  |  |  | __END__
|  |  |  |  | # spent 59µs within DynaLoader::CORE:ftdir which was called 2 times, avg 30µs/call: # 2 times (59µs+0s) by DynaLoader::bootstrap at line 148, avg 30µs/call sub DynaLoader::CORE:ftdir; # opcode
|  |  |  |  | # spent 15µs within DynaLoader::CORE:ftfile which was called: # once (15µs+0s) by DynaLoader::bootstrap at line 152 sub DynaLoader::CORE:ftfile; # opcode
|  |  |  |  | # spent 18µs within DynaLoader::CORE:ftsize which was called: # once (18µs+0s) by DynaLoader::bootstrap at line 173 sub DynaLoader::CORE:ftsize; # opcode
|  |  |  |  | # spent 174µs within DynaLoader::CORE:subst which was called 2 times, avg 87µs/call: # once (154µs+0s) by DynaLoader::bootstrap at line 172 # once (20µs+0s) by DynaLoader::bootstrap at line 165 sub DynaLoader::CORE:subst; # opcode
|  |  |  |  | # spent 10µs within DynaLoader::dl_find_symbol which was called: # once (10µs+0s) by DynaLoader::bootstrap at line 201 sub DynaLoader::dl_find_symbol; # xsub
|  |  |  |  | # spent 32µs within DynaLoader::dl_install_xsub which was called: # once (32µs+0s) by DynaLoader::bootstrap at line 206 sub DynaLoader::dl_install_xsub; # xsub
|  |  |  |  | # spent 268µs within DynaLoader::dl_load_file which was called: # once (268µs+0s) by DynaLoader::bootstrap at line 190 sub DynaLoader::dl_load_file; # xsub
|  |  |  |  | # spent 5µs within DynaLoader::dl_undef_symbols which was called: # once (5µs+0s) by DynaLoader::bootstrap at line 195 sub DynaLoader::dl_undef_symbols; # xsub