| Filename | /2home/ss5/perl5/perlbrew/perls/perl-5.12.3/lib/5.12.3/x86_64-linux/DynaLoader.pm |
| Statements | Executed 318 statements in 4.03ms |
| Calls | P | F | Exclusive Time |
Inclusive Time |
Subroutine |
|---|---|---|---|---|---|
| 8 | 1 | 1 | 910µs | 910µs | DynaLoader::dl_load_file (xsub) |
| 8 | 8 | 8 | 613µs | 3.05ms | DynaLoader::bootstrap |
| 1 | 1 | 1 | 459µs | 544µs | DynaLoader::BEGIN@25 |
| 16 | 2 | 1 | 309µs | 309µs | DynaLoader::CORE:subst (opcode) |
| 18 | 1 | 1 | 82µs | 82µs | DynaLoader::CORE:ftdir (opcode) |
| 8 | 1 | 1 | 66µs | 66µs | DynaLoader::dl_install_xsub (xsub) |
| 8 | 1 | 1 | 30µs | 30µs | DynaLoader::CORE:ftsize (opcode) |
| 8 | 1 | 1 | 26µs | 26µs | DynaLoader::CORE:ftfile (opcode) |
| 8 | 1 | 1 | 22µs | 22µs | DynaLoader::dl_find_symbol (xsub) |
| 8 | 1 | 1 | 14µs | 14µs | DynaLoader::dl_load_flags |
| 8 | 1 | 1 | 12µs | 12µs | DynaLoader::dl_undef_symbols (xsub) |
| 1 | 1 | 1 | 7µs | 7µs | DynaLoader::BEGIN@18 |
| 0 | 0 | 0 | 0s | 0s | DynaLoader::bootstrap_inherit |
| 0 | 0 | 0 | 0s | 0s | DynaLoader::croak |
| 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 7µs within DynaLoader::BEGIN@18 which was called:
# once (7µs+0s) by Data::OptList::BEGIN@10 at line 20 | ||||
| 19 | 1 | 7µs | $VERSION = '1.10'; | ||
| 20 | 1 | 30µs | 1 | 7µs | } # spent 7µs making 1 call to DynaLoader::BEGIN@18 |
| 21 | |||||
| 22 | 1 | 69µs | require AutoLoader; | ||
| 23 | 1 | 2µs | *AUTOLOAD = \&AutoLoader::AUTOLOAD; | ||
| 24 | |||||
| 25 | 3 | 768µs | 2 | 553µs | # spent 544µs (459+85) within DynaLoader::BEGIN@25 which was called:
# once (459µs+85µs) by Data::OptList::BEGIN@10 at line 25 # spent 544µs making 1 call to DynaLoader::BEGIN@25
# spent 9µs making 1 call to Config::import |
| 26 | |||||
| 27 | # enable debug/trace messages from DynaLoader perl code | ||||
| 28 | 1 | 2µs | $dl_debug = $ENV{PERL_DL_DEBUG} || 0 unless defined $dl_debug; | ||
| 29 | |||||
| 30 | # | ||||
| 31 | # Flags to alter dl_load_file behaviour. Assigned bits: | ||||
| 32 | # 0x01 make symbols available for linking later dl_load_file's. | ||||
| 33 | # (only known to work on Solaris 2 using dlopen(RTLD_GLOBAL)) | ||||
| 34 | # (ignored under VMS; effect is built-in to image linking) | ||||
| 35 | # | ||||
| 36 | # This is called as a class method $module->dl_load_flags. The | ||||
| 37 | # definition here will be inherited and result on "default" loading | ||||
| 38 | # behaviour unless a sub-class of DynaLoader defines its own version. | ||||
| 39 | # | ||||
| 40 | |||||
| 41 | 8 | 21µs | # spent 14µs within DynaLoader::dl_load_flags which was called 8 times, avg 2µs/call:
# 8 times (14µs+0s) by DynaLoader::bootstrap at line 200, avg 2µs/call | ||
| 42 | |||||
| 43 | 1 | 17µs | 3 | 1.84ms | ($dl_dlext, $dl_so, $dlsrc) = @Config::Config{qw(dlext so dlsrc)}; # spent 1.84ms making 3 calls to Config::FETCH, avg 613µs/call |
| 44 | |||||
| 45 | |||||
| 46 | 1 | 700ns | $do_expand = 0; | ||
| 47 | |||||
| - - | |||||
| 50 | 1 | 1µs | @dl_require_symbols = (); # names of symbols we need | ||
| 51 | 1 | 800ns | @dl_resolve_using = (); # names of files to link with | ||
| 52 | 1 | 600ns | @dl_library_path = (); # path to look for files | ||
| 53 | |||||
| 54 | #XSLoader.pm may have added elements before we were required | ||||
| 55 | #@dl_shared_objects = (); # shared objects for symbols we have | ||||
| 56 | #@dl_librefs = (); # things we have loaded | ||||
| 57 | #@dl_modules = (); # Modules we have loaded | ||||
| 58 | |||||
| 59 | # This is a fix to support DLD's unfortunate desire to relink -lc | ||||
| 60 | 1 | 800ns | @dl_resolve_using = dl_findfile('-lc') if $dlsrc eq "dl_dld.xs"; | ||
| 61 | |||||
| 62 | # Initialise @dl_library_path with the 'standard' library path | ||||
| 63 | # for this platform as determined by Configure. | ||||
| 64 | |||||
| 65 | 1 | 8µs | 1 | 2µs | push(@dl_library_path, split(' ', $Config::Config{libpth})); # spent 2µs making 1 call to Config::FETCH |
| 66 | |||||
| 67 | |||||
| 68 | 1 | 4µs | 1 | 2µs | my $ldlibpthname = $Config::Config{ldlibpthname}; # spent 2µs making 1 call to Config::FETCH |
| 69 | 1 | 3µs | 1 | 1µs | my $ldlibpthname_defined = defined $Config::Config{ldlibpthname}; # spent 1µs making 1 call to Config::FETCH |
| 70 | 1 | 3µs | 1 | 1µs | my $pthsep = $Config::Config{path_sep}; # spent 1µs making 1 call to Config::FETCH |
| 71 | |||||
| 72 | # Add to @dl_library_path any extra directories we can gather from environment | ||||
| 73 | # during runtime. | ||||
| 74 | |||||
| 75 | 1 | 1µs | if ($ldlibpthname_defined && | ||
| 76 | exists $ENV{$ldlibpthname}) { | ||||
| 77 | push(@dl_library_path, split(/$pthsep/, $ENV{$ldlibpthname})); | ||||
| 78 | } | ||||
| 79 | |||||
| 80 | # E.g. HP-UX supports both its native SHLIB_PATH *and* LD_LIBRARY_PATH. | ||||
| 81 | |||||
| 82 | 1 | 800ns | if ($ldlibpthname_defined && | ||
| 83 | $ldlibpthname ne 'LD_LIBRARY_PATH' && | ||||
| 84 | exists $ENV{LD_LIBRARY_PATH}) { | ||||
| 85 | push(@dl_library_path, split(/$pthsep/, $ENV{LD_LIBRARY_PATH})); | ||||
| 86 | } | ||||
| 87 | |||||
| 88 | |||||
| 89 | # No prizes for guessing why we don't say 'bootstrap DynaLoader;' here. | ||||
| 90 | # NOTE: All dl_*.xs (including dl_none.xs) define a dl_error() XSUB | ||||
| 91 | 1 | 2µs | boot_DynaLoader('DynaLoader') if defined(&boot_DynaLoader) && | ||
| 92 | !defined(&dl_error); | ||||
| 93 | |||||
| 94 | 1 | 300ns | if ($dl_debug) { | ||
| 95 | print STDERR "DynaLoader.pm loaded (@INC, @dl_library_path)\n"; | ||||
| 96 | print STDERR "DynaLoader not linked into this perl\n" | ||||
| 97 | unless defined(&boot_DynaLoader); | ||||
| 98 | } | ||||
| 99 | |||||
| 100 | 1 | 24µs | 1; # End of main code | ||
| 101 | |||||
| 102 | |||||
| 103 | sub croak { require Carp; Carp::croak(@_) } | ||||
| 104 | |||||
| 105 | sub bootstrap_inherit { | ||||
| 106 | 4 | 24µs | my $module = $_[0]; | ||
| 107 | local *isa = *{"$module\::ISA"}; | ||||
| 108 | local @isa = (@isa, 'DynaLoader'); | ||||
| 109 | # Cannot goto due to delocalization. Will report errors on a wrong line? | ||||
| 110 | 1 | 457µs | bootstrap(@_); # spent 457µs making 1 call to DynaLoader::bootstrap | ||
| 111 | } | ||||
| 112 | |||||
| 113 | # The bootstrap function cannot be autoloaded (without complications) | ||||
| 114 | # so we define it here: | ||||
| 115 | |||||
| 116 | # spent 3.05ms (613µs+2.44) within DynaLoader::bootstrap which was called 8 times, avg 381µs/call:
# once (75µs+491µs) by DBI::BEGIN@161 at line 259 of DBI.pm
# once (84µs+482µs) by DBI::install_driver at line 27 of DBD/SQLite.pm
# once (72µs+385µs) by Moose::Exporter::BEGIN@13 at line 110
# once (82µs+229µs) by Log::Log4perl::Util::module_available at line 65 of Time/HiRes.pm
# once (72µs+238µs) by List::MoreUtils::BEGIN@9 at line 36 of List/MoreUtils.pm
# once (76µs+231µs) by SQL::Translator::Utils::BEGIN@24 at line 24 of Digest/SHA1.pm
# once (84µs+204µs) by Data::OptList::BEGIN@10 at line 88 of Params/Util.pm
# once (69µs+178µs) by Class::MOP::Mixin::HasMethods::BEGIN@17 at line 55 of Sub/Name.pm | ||||
| 117 | # use local vars to enable $module.bs script to edit values | ||||
| 118 | 284 | 3.04ms | local(@args) = @_; | ||
| 119 | local($module) = $args[0]; | ||||
| 120 | local(@dirs, $file); | ||||
| 121 | |||||
| 122 | unless ($module) { | ||||
| 123 | require Carp; | ||||
| 124 | Carp::confess("Usage: DynaLoader::bootstrap(module)"); | ||||
| 125 | } | ||||
| 126 | |||||
| 127 | # A common error on platforms which don't support dynamic loading. | ||||
| 128 | # Since it's fatal and potentially confusing we give a detailed message. | ||||
| 129 | croak("Can't load module $module, dynamic loading not available in this perl.\n". | ||||
| 130 | " (You may need to build a new perl executable which either supports\n". | ||||
| 131 | " dynamic loading or has the $module module statically linked into it.)\n") | ||||
| 132 | unless defined(&dl_load_file); | ||||
| 133 | |||||
| - - | |||||
| 136 | my @modparts = split(/::/,$module); | ||||
| 137 | my $modfname = $modparts[-1]; | ||||
| 138 | |||||
| 139 | # Some systems have restrictions on files names for DLL's etc. | ||||
| 140 | # mod2fname returns appropriate file base name (typically truncated) | ||||
| 141 | # It may also edit @modparts if required. | ||||
| 142 | $modfname = &mod2fname(\@modparts) if defined &mod2fname; | ||||
| 143 | |||||
| 144 | |||||
| 145 | |||||
| 146 | my $modpname = join('/',@modparts); | ||||
| 147 | |||||
| 148 | print STDERR "DynaLoader::bootstrap for $module ", | ||||
| 149 | "(auto/$modpname/$modfname.$dl_dlext)\n" | ||||
| 150 | if $dl_debug; | ||||
| 151 | |||||
| 152 | foreach (@INC) { | ||||
| 153 | |||||
| 154 | |||||
| 155 | my $dir = "$_/auto/$modpname"; | ||||
| 156 | |||||
| 157 | |||||
| 158 | 18 | 82µs | next unless -d $dir; # skip over uninteresting directories # spent 82µs making 18 calls to DynaLoader::CORE:ftdir, avg 5µs/call | ||
| 159 | |||||
| 160 | # check for common cases to avoid autoload of dl_findfile | ||||
| 161 | my $try = "$dir/$modfname.$dl_dlext"; | ||||
| 162 | 8 | 26µs | last if $file = ($do_expand) ? dl_expandspec($try) : ((-f $try) && $try); # spent 26µs making 8 calls to DynaLoader::CORE:ftfile, avg 3µs/call | ||
| 163 | |||||
| 164 | # no luck here, save dir for possible later dl_findfile search | ||||
| 165 | push @dirs, $dir; | ||||
| 166 | } | ||||
| 167 | # last resort, let dl_findfile have a go in all known locations | ||||
| 168 | $file = dl_findfile(map("-L$_",@dirs,@INC), $modfname) unless $file; | ||||
| 169 | |||||
| 170 | croak("Can't locate loadable object for module $module in \@INC (\@INC contains: @INC)") | ||||
| 171 | unless $file; # wording similar to error from 'require' | ||||
| 172 | |||||
| 173 | |||||
| 174 | my $bootname = "boot_$module"; | ||||
| 175 | 8 | 28µs | $bootname =~ s/\W/_/g; # spent 28µs making 8 calls to DynaLoader::CORE:subst, avg 4µs/call | ||
| 176 | @dl_require_symbols = ($bootname); | ||||
| 177 | |||||
| 178 | # Execute optional '.bootstrap' perl script for this module. | ||||
| 179 | # The .bs file can be used to configure @dl_resolve_using etc to | ||||
| 180 | # match the needs of the individual module on this architecture. | ||||
| 181 | my $bs = $file; | ||||
| 182 | 8 | 280µs | $bs =~ s/(\.\w+)?(;\d*)?$/\.bs/; # look for .bs 'beside' the library # spent 280µs making 8 calls to DynaLoader::CORE:subst, avg 35µs/call | ||
| 183 | 8 | 30µs | if (-s $bs) { # only read file if it's not empty # spent 30µs making 8 calls to DynaLoader::CORE:ftsize, avg 4µs/call | ||
| 184 | print STDERR "BS: $bs ($^O, $dlsrc)\n" if $dl_debug; | ||||
| 185 | eval { do $bs; }; | ||||
| 186 | warn "$bs: $@\n" if $@; | ||||
| 187 | } | ||||
| 188 | |||||
| 189 | my $boot_symbol_ref; | ||||
| 190 | |||||
| 191 | |||||
| 192 | |||||
| 193 | # Many dynamic extension loading problems will appear to come from | ||||
| 194 | # this section of code: XYZ failed at line 123 of DynaLoader.pm. | ||||
| 195 | # Often these errors are actually occurring in the initialisation | ||||
| 196 | # C code of the extension XS file. Perl reports the error as being | ||||
| 197 | # in this perl code simply because this was the last perl code | ||||
| 198 | # it executed. | ||||
| 199 | |||||
| 200 | 16 | 924µs | my $libref = dl_load_file($file, $module->dl_load_flags) or # spent 910µs making 8 calls to DynaLoader::dl_load_file, avg 114µs/call
# spent 14µs making 8 calls to DynaLoader::dl_load_flags, avg 2µs/call | ||
| 201 | croak("Can't load '$file' for module $module: ".dl_error()); | ||||
| 202 | |||||
| 203 | push(@dl_librefs,$libref); # record loaded object | ||||
| 204 | |||||
| 205 | 8 | 12µs | my @unresolved = dl_undef_symbols(); # spent 12µs making 8 calls to DynaLoader::dl_undef_symbols, avg 1µs/call | ||
| 206 | if (@unresolved) { | ||||
| 207 | require Carp; | ||||
| 208 | Carp::carp("Undefined symbols present after loading $file: @unresolved\n"); | ||||
| 209 | } | ||||
| 210 | |||||
| 211 | 8 | 22µs | $boot_symbol_ref = dl_find_symbol($libref, $bootname) or # spent 22µs making 8 calls to DynaLoader::dl_find_symbol, avg 3µs/call | ||
| 212 | croak("Can't find '$bootname' symbol in $file\n"); | ||||
| 213 | |||||
| 214 | push(@dl_modules, $module); # record loaded module | ||||
| 215 | |||||
| 216 | 8 | 66µs | boot: # spent 66µs making 8 calls to DynaLoader::dl_install_xsub, avg 8µs/call | ||
| 217 | my $xs = dl_install_xsub("${module}::bootstrap", $boot_symbol_ref, $file); | ||||
| 218 | |||||
| 219 | # See comment block above | ||||
| 220 | |||||
| 221 | push(@dl_shared_objects, $file); # record files loaded | ||||
| 222 | |||||
| 223 | 8 | 968µs | &$xs(@args); # spent 290µs making 1 call to DBI::bootstrap
# spent 248µs making 1 call to DBD::SQLite::bootstrap
# spent 211µs making 1 call to Moose::bootstrap
# spent 74µs making 1 call to List::MoreUtils::bootstrap
# spent 49µs making 1 call to Time::HiRes::bootstrap
# spent 43µs making 1 call to Digest::SHA1::bootstrap
# spent 36µs making 1 call to Params::Util::bootstrap
# spent 17µs making 1 call to Sub::Name::bootstrap | ||
| 224 | } | ||||
| 225 | |||||
| 226 | |||||
| 227 | #sub _check_file { # private utility to handle dl_expandspec vs -f tests | ||||
| 228 | # my($file) = @_; | ||||
| 229 | # return $file if (!$do_expand && -f $file); # the common case | ||||
| 230 | # return $file if ( $do_expand && ($file=dl_expandspec($file))); | ||||
| 231 | # return undef; | ||||
| 232 | #} | ||||
| 233 | |||||
| 234 | |||||
| 235 | # Let autosplit and the autoloader deal with these functions: | ||||
| 236 | __END__ | ||||
# spent 82µs within DynaLoader::CORE:ftdir which was called 18 times, avg 5µs/call:
# 18 times (82µs+0s) by DynaLoader::bootstrap at line 158, avg 5µs/call | |||||
# spent 26µs within DynaLoader::CORE:ftfile which was called 8 times, avg 3µs/call:
# 8 times (26µs+0s) by DynaLoader::bootstrap at line 162, avg 3µs/call | |||||
# spent 30µs within DynaLoader::CORE:ftsize which was called 8 times, avg 4µs/call:
# 8 times (30µs+0s) by DynaLoader::bootstrap at line 183, avg 4µs/call | |||||
sub DynaLoader::CORE:subst; # opcode | |||||
# spent 22µs within DynaLoader::dl_find_symbol which was called 8 times, avg 3µs/call:
# 8 times (22µs+0s) by DynaLoader::bootstrap at line 211, avg 3µs/call | |||||
# spent 66µs within DynaLoader::dl_install_xsub which was called 8 times, avg 8µs/call:
# 8 times (66µs+0s) by DynaLoader::bootstrap at line 216, avg 8µs/call | |||||
# spent 910µs within DynaLoader::dl_load_file which was called 8 times, avg 114µs/call:
# 8 times (910µs+0s) by DynaLoader::bootstrap at line 200, avg 114µs/call | |||||
# spent 12µs within DynaLoader::dl_undef_symbols which was called 8 times, avg 1µs/call:
# 8 times (12µs+0s) by DynaLoader::bootstrap at line 205, avg 1µs/call |