| Filename | /usr/lib/perl/5.10/DynaLoader.pm |
| Statements | Executed 622 statements in 10.8ms |
| Calls | P | F | Exclusive Time |
Inclusive Time |
Subroutine |
|---|---|---|---|---|---|
| 14 | 1 | 1 | 3.74ms | 3.74ms | DynaLoader::dl_load_file (xsub) |
| 1 | 1 | 1 | 1.89ms | 2.07ms | DynaLoader::BEGIN@24 |
| 14 | 14 | 14 | 1.79ms | 8.85ms | DynaLoader::bootstrap |
| 28 | 2 | 1 | 368µs | 368µs | DynaLoader::CORE:subst (opcode) |
| 76 | 1 | 1 | 340µs | 340µs | DynaLoader::CORE:ftdir (opcode) |
| 14 | 1 | 1 | 163µs | 163µs | DynaLoader::dl_install_xsub (xsub) |
| 14 | 1 | 1 | 72µs | 72µs | DynaLoader::CORE:ftfile (opcode) |
| 14 | 1 | 1 | 69µs | 69µs | DynaLoader::dl_find_symbol (xsub) |
| 14 | 1 | 1 | 68µs | 68µs | DynaLoader::CORE:ftsize (opcode) |
| 14 | 1 | 1 | 46µs | 46µs | DynaLoader::dl_load_flags |
| 14 | 1 | 1 | 44µs | 44µs | DynaLoader::dl_undef_symbols (xsub) |
| 1 | 1 | 1 | 23µs | 23µs | DynaLoader::BEGIN@17 |
| 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 | # Generated from DynaLoader_pm.PL | ||||
| 2 | |||||
| 3 | package DynaLoader; | ||||
| 4 | |||||
| 5 | # And Gandalf said: 'Many folk like to know beforehand what is to | ||||
| 6 | # be set on the table; but those who have laboured to prepare the | ||||
| 7 | # feast like to keep their secret; for wonder makes the words of | ||||
| 8 | # praise louder.' | ||||
| 9 | |||||
| 10 | # (Quote from Tolkien suggested by Anno Siegel.) | ||||
| 11 | # | ||||
| 12 | # See pod text at end of file for documentation. | ||||
| 13 | # See also ext/DynaLoader/README in source tree for other information. | ||||
| 14 | # | ||||
| 15 | # Tim.Bunce@ig.co.uk, August 1994 | ||||
| 16 | |||||
| 17 | # spent 23µs within DynaLoader::BEGIN@17 which was called:
# once (23µs+0s) by DBI::BEGIN@157 at line 19 | ||||
| 18 | 1 | 19µs | $VERSION = '1.10'; | ||
| 19 | 1 | 64µs | 1 | 23µs | } # spent 23µs making 1 call to DynaLoader::BEGIN@17 |
| 20 | |||||
| 21 | 1 | 124µs | require AutoLoader; | ||
| 22 | 1 | 3µs | *AUTOLOAD = \&AutoLoader::AUTOLOAD; | ||
| 23 | |||||
| 24 | 3 | 1.61ms | 2 | 2.11ms | # spent 2.07ms (1.89+178µs) within DynaLoader::BEGIN@24 which was called:
# once (1.89ms+178µs) by DBI::BEGIN@157 at line 24 # spent 2.07ms making 1 call to DynaLoader::BEGIN@24
# spent 41µs making 1 call to Config::import |
| 25 | |||||
| 26 | # enable debug/trace messages from DynaLoader perl code | ||||
| 27 | 1 | 3µs | $dl_debug = $ENV{PERL_DL_DEBUG} || 0 unless defined $dl_debug; | ||
| 28 | |||||
| 29 | # | ||||
| 30 | # Flags to alter dl_load_file behaviour. Assigned bits: | ||||
| 31 | # 0x01 make symbols available for linking later dl_load_file's. | ||||
| 32 | # (only known to work on Solaris 2 using dlopen(RTLD_GLOBAL)) | ||||
| 33 | # (ignored under VMS; effect is built-in to image linking) | ||||
| 34 | # | ||||
| 35 | # This is called as a class method $module->dl_load_flags. The | ||||
| 36 | # definition here will be inherited and result on "default" loading | ||||
| 37 | # behaviour unless a sub-class of DynaLoader defines its own version. | ||||
| 38 | # | ||||
| 39 | |||||
| 40 | 14 | 55µs | # spent 46µs within DynaLoader::dl_load_flags which was called 14 times, avg 3µs/call:
# 14 times (46µs+0s) by DynaLoader::bootstrap at line 192, avg 3µs/call | ||
| 41 | |||||
| 42 | 1 | 28µs | 3 | 2.50ms | ($dl_dlext, $dl_so, $dlsrc) = @Config::Config{qw(dlext so dlsrc)}; # spent 2.50ms making 3 calls to Config::FETCH, avg 835µs/call |
| 43 | |||||
| 44 | 1 | 1µs | $do_expand = 0; | ||
| 45 | |||||
| 46 | 1 | 2µs | @dl_require_symbols = (); # names of symbols we need | ||
| 47 | 1 | 900ns | @dl_resolve_using = (); # names of files to link with | ||
| 48 | 1 | 900ns | @dl_library_path = (); # path to look for files | ||
| 49 | |||||
| 50 | #XSLoader.pm may have added elements before we were required | ||||
| 51 | #@dl_shared_objects = (); # shared objects for symbols we have | ||||
| 52 | #@dl_librefs = (); # things we have loaded | ||||
| 53 | #@dl_modules = (); # Modules we have loaded | ||||
| 54 | |||||
| 55 | # This is a fix to support DLD's unfortunate desire to relink -lc | ||||
| 56 | 1 | 1µs | @dl_resolve_using = dl_findfile('-lc') if $dlsrc eq "dl_dld.xs"; | ||
| 57 | |||||
| 58 | # Initialise @dl_library_path with the 'standard' library path | ||||
| 59 | # for this platform as determined by Configure. | ||||
| 60 | |||||
| 61 | 1 | 20µs | 1 | 6µs | push(@dl_library_path, split(' ', $Config::Config{libpth})); # spent 6µs making 1 call to Config::FETCH |
| 62 | |||||
| 63 | 1 | 7µs | 1 | 5µs | my $ldlibpthname = $Config::Config{ldlibpthname}; # spent 5µs making 1 call to Config::FETCH |
| 64 | 1 | 7µs | 1 | 4µs | my $ldlibpthname_defined = defined $Config::Config{ldlibpthname}; # spent 4µs making 1 call to Config::FETCH |
| 65 | 1 | 8µs | 1 | 4µs | my $pthsep = $Config::Config{path_sep}; # spent 4µs making 1 call to Config::FETCH |
| 66 | |||||
| 67 | # Add to @dl_library_path any extra directories we can gather from environment | ||||
| 68 | # during runtime. | ||||
| 69 | |||||
| 70 | 1 | 2µs | if ($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 | 2µs | if ($ldlibpthname_defined && | ||
| 78 | $ldlibpthname ne 'LD_LIBRARY_PATH' && | ||||
| 79 | exists $ENV{LD_LIBRARY_PATH}) { | ||||
| 80 | push(@dl_library_path, split(/$pthsep/, $ENV{LD_LIBRARY_PATH})); | ||||
| 81 | } | ||||
| 82 | |||||
| 83 | # No prizes for guessing why we don't say 'bootstrap DynaLoader;' here. | ||||
| 84 | # NOTE: All dl_*.xs (including dl_none.xs) define a dl_error() XSUB | ||||
| 85 | 1 | 2µs | boot_DynaLoader('DynaLoader') if defined(&boot_DynaLoader) && | ||
| 86 | !defined(&dl_error); | ||||
| 87 | |||||
| 88 | 1 | 700ns | if ($dl_debug) { | ||
| 89 | print STDERR "DynaLoader.pm loaded (@INC, @dl_library_path)\n"; | ||||
| 90 | print STDERR "DynaLoader not linked into this perl\n" | ||||
| 91 | unless defined(&boot_DynaLoader); | ||||
| 92 | } | ||||
| 93 | |||||
| 94 | 1 | 38µs | 1; # End of main code | ||
| 95 | |||||
| 96 | sub croak { require Carp; Carp::croak(@_) } | ||||
| 97 | |||||
| 98 | sub bootstrap_inherit { | ||||
| 99 | my $module = $_[0]; | ||||
| 100 | local *isa = *{"$module\::ISA"}; | ||||
| 101 | local @isa = (@isa, 'DynaLoader'); | ||||
| 102 | # Cannot goto due to delocalization. Will report errors on a wrong line? | ||||
| 103 | bootstrap(@_); | ||||
| 104 | } | ||||
| 105 | |||||
| 106 | # The bootstrap function cannot be autoloaded (without complications) | ||||
| 107 | # so we define it here: | ||||
| 108 | |||||
| 109 | # spent 8.85ms (1.79+7.05) within DynaLoader::bootstrap which was called 14 times, avg 632µs/call:
# once (119µs+1.59ms) by DBI::install_driver at line 14 of DBD/mysql.pm
# once (152µs+1.31ms) by XML::LibXML::BEGIN@28 at line 147 of XML/LibXML.pm
# once (136µs+677µs) by MARC::Charset::BEGIN@10 at line 42 of Unicode/Normalize.pm
# once (189µs+473µs) by C4::Members::BEGIN@42 at line 32 of Text/Unaccent.pm
# once (164µs+414µs) by DBI::BEGIN@160 at line 258 of DBI.pm
# once (113µs+449µs) by XML::LibXSLT::BEGIN@23 at line 38 of XML/LibXSLT.pm
# once (158µs+314µs) by Math::BigInt::BEGIN@1 at line 16 of Math/BigInt/FastCalc.pm
# once (99µs+325µs) by C4::Dates::BEGIN@29 at line 108 of Date/Calc.pm
# once (116µs+289µs) by Template::Stash::XS::BEGIN@21 at line 26 of Template/Stash/XS.pm
# once (111µs+287µs) by LWP::UserAgent::BEGIN@10 at line 67 of Storable.pm
# once (121µs+240µs) by C4::Charset::BEGIN@24 at line 21 of Text/Iconv.pm
# once (93µs+250µs) by C4::SQLHelper::BEGIN@23 at line 26 of List/MoreUtils.pm
# once (106µs+228µs) by base::import at line 55 of Sub/Name.pm
# once (118µs+209µs) by Text::CSV::BEGIN@1 at line 35 of Text/CSV_XS.pm | ||||
| 110 | # use local vars to enable $module.bs script to edit values | ||||
| 111 | 586 | 8.81ms | local(@args) = @_; | ||
| 112 | local($module) = $args[0]; | ||||
| 113 | local(@dirs, $file); | ||||
| 114 | |||||
| 115 | unless ($module) { | ||||
| 116 | require Carp; | ||||
| 117 | Carp::confess("Usage: DynaLoader::bootstrap(module)"); | ||||
| 118 | } | ||||
| 119 | |||||
| 120 | # A common error on platforms which don't support dynamic loading. | ||||
| 121 | # Since it's fatal and potentially confusing we give a detailed message. | ||||
| 122 | croak("Can't load module $module, dynamic loading not available in this perl.\n". | ||||
| 123 | " (You may need to build a new perl executable which either supports\n". | ||||
| 124 | " dynamic loading or has the $module module statically linked into it.)\n") | ||||
| 125 | unless defined(&dl_load_file); | ||||
| 126 | |||||
| 127 | |||||
| 128 | my @modparts = split(/::/,$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 | |||||
| 147 | my $dir = "$_/auto/$modpname"; | ||||
| 148 | |||||
| 149 | |||||
| 150 | 76 | 340µs | next unless -d $dir; # skip over uninteresting directories # spent 340µs making 76 calls to DynaLoader::CORE:ftdir, avg 4µs/call | ||
| 151 | |||||
| 152 | # check for common cases to avoid autoload of dl_findfile | ||||
| 153 | my $try = "$dir/$modfname.$dl_dlext"; | ||||
| 154 | 14 | 72µs | last if $file = ($do_expand) ? dl_expandspec($try) : ((-f $try) && $try); # spent 72µs making 14 calls to DynaLoader::CORE:ftfile, avg 5µs/call | ||
| 155 | |||||
| 156 | # no luck here, save dir for possible later dl_findfile search | ||||
| 157 | push @dirs, $dir; | ||||
| 158 | } | ||||
| 159 | # last resort, let dl_findfile have a go in all known locations | ||||
| 160 | $file = dl_findfile(map("-L$_",@dirs,@INC), $modfname) unless $file; | ||||
| 161 | |||||
| 162 | croak("Can't locate loadable object for module $module in \@INC (\@INC contains: @INC)") | ||||
| 163 | unless $file; # wording similar to error from 'require' | ||||
| 164 | |||||
| 165 | |||||
| 166 | my $bootname = "boot_$module"; | ||||
| 167 | 14 | 67µs | $bootname =~ s/\W/_/g; # spent 67µs making 14 calls to DynaLoader::CORE:subst, avg 5µs/call | ||
| 168 | @dl_require_symbols = ($bootname); | ||||
| 169 | |||||
| 170 | # Execute optional '.bootstrap' perl script for this module. | ||||
| 171 | # The .bs file can be used to configure @dl_resolve_using etc to | ||||
| 172 | # match the needs of the individual module on this architecture. | ||||
| 173 | my $bs = $file; | ||||
| 174 | 14 | 301µs | $bs =~ s/(\.\w+)?(;\d*)?$/\.bs/; # look for .bs 'beside' the library # spent 301µs making 14 calls to DynaLoader::CORE:subst, avg 21µs/call | ||
| 175 | 14 | 68µs | if (-s $bs) { # only read file if it's not empty # spent 68µs making 14 calls to DynaLoader::CORE:ftsize, avg 5µs/call | ||
| 176 | print STDERR "BS: $bs ($^O, $dlsrc)\n" if $dl_debug; | ||||
| 177 | eval { do $bs; }; | ||||
| 178 | warn "$bs: $@\n" if $@; | ||||
| 179 | } | ||||
| 180 | |||||
| 181 | my $boot_symbol_ref; | ||||
| 182 | |||||
| 183 | |||||
| 184 | |||||
| 185 | # Many dynamic extension loading problems will appear to come from | ||||
| 186 | # this section of code: XYZ failed at line 123 of DynaLoader.pm. | ||||
| 187 | # Often these errors are actually occurring in the initialisation | ||||
| 188 | # C code of the extension XS file. Perl reports the error as being | ||||
| 189 | # in this perl code simply because this was the last perl code | ||||
| 190 | # it executed. | ||||
| 191 | |||||
| 192 | 28 | 3.79ms | my $libref = dl_load_file($file, $module->dl_load_flags) or # spent 3.74ms making 14 calls to DynaLoader::dl_load_file, avg 267µs/call
# spent 46µs making 14 calls to DynaLoader::dl_load_flags, avg 3µs/call | ||
| 193 | croak("Can't load '$file' for module $module: ".dl_error()); | ||||
| 194 | |||||
| 195 | push(@dl_librefs,$libref); # record loaded object | ||||
| 196 | |||||
| 197 | 14 | 44µs | my @unresolved = dl_undef_symbols(); # spent 44µs making 14 calls to DynaLoader::dl_undef_symbols, avg 3µs/call | ||
| 198 | if (@unresolved) { | ||||
| 199 | require Carp; | ||||
| 200 | Carp::carp("Undefined symbols present after loading $file: @unresolved\n"); | ||||
| 201 | } | ||||
| 202 | |||||
| 203 | 14 | 69µs | $boot_symbol_ref = dl_find_symbol($libref, $bootname) or # spent 69µs making 14 calls to DynaLoader::dl_find_symbol, avg 5µs/call | ||
| 204 | croak("Can't find '$bootname' symbol in $file\n"); | ||||
| 205 | |||||
| 206 | push(@dl_modules, $module); # record loaded module | ||||
| 207 | |||||
| 208 | 14 | 163µs | boot: # spent 163µs making 14 calls to DynaLoader::dl_install_xsub, avg 12µs/call | ||
| 209 | my $xs = dl_install_xsub("${module}::bootstrap", $boot_symbol_ref, $file); | ||||
| 210 | |||||
| 211 | # See comment block above | ||||
| 212 | |||||
| 213 | push(@dl_shared_objects, $file); # record files loaded | ||||
| 214 | |||||
| 215 | 14 | 2.14ms | &$xs(@args); # spent 857µs making 1 call to XML::LibXML::bootstrap
# spent 230µs making 1 call to DBI::bootstrap
# spent 190µs making 1 call to XML::LibXSLT::bootstrap
# spent 133µs making 1 call to DBD::mysql::bootstrap
# spent 130µs making 1 call to Date::Calc::bootstrap
# spent 116µs making 1 call to Template::Stash::XS::bootstrap
# spent 90µs making 1 call to Storable::bootstrap
# spent 82µs making 1 call to List::MoreUtils::bootstrap
# spent 80µs making 1 call to Unicode::Normalize::bootstrap
# spent 64µs making 1 call to Math::BigInt::FastCalc::bootstrap
# spent 64µs making 1 call to Text::Unaccent::bootstrap
# spent 50µs making 1 call to Text::Iconv::bootstrap
# spent 30µs making 1 call to Text::CSV_XS::bootstrap
# spent 24µs making 1 call to Sub::Name::bootstrap | ||
| 216 | } | ||||
| 217 | |||||
| 218 | #sub _check_file { # private utility to handle dl_expandspec vs -f tests | ||||
| 219 | # my($file) = @_; | ||||
| 220 | # return $file if (!$do_expand && -f $file); # the common case | ||||
| 221 | # return $file if ( $do_expand && ($file=dl_expandspec($file))); | ||||
| 222 | # return undef; | ||||
| 223 | #} | ||||
| 224 | |||||
| 225 | # Let autosplit and the autoloader deal with these functions: | ||||
# spent 340µs within DynaLoader::CORE:ftdir which was called 76 times, avg 4µs/call:
# 76 times (340µs+0s) by DynaLoader::bootstrap at line 150, avg 4µs/call | |||||
# spent 72µs within DynaLoader::CORE:ftfile which was called 14 times, avg 5µs/call:
# 14 times (72µs+0s) by DynaLoader::bootstrap at line 154, avg 5µs/call | |||||
# spent 68µs within DynaLoader::CORE:ftsize which was called 14 times, avg 5µs/call:
# 14 times (68µs+0s) by DynaLoader::bootstrap at line 175, avg 5µs/call | |||||
sub DynaLoader::CORE:subst; # opcode | |||||
# spent 69µs within DynaLoader::dl_find_symbol which was called 14 times, avg 5µs/call:
# 14 times (69µs+0s) by DynaLoader::bootstrap at line 203, avg 5µs/call | |||||
# spent 163µs within DynaLoader::dl_install_xsub which was called 14 times, avg 12µs/call:
# 14 times (163µs+0s) by DynaLoader::bootstrap at line 208, avg 12µs/call | |||||
# spent 3.74ms within DynaLoader::dl_load_file which was called 14 times, avg 267µs/call:
# 14 times (3.74ms+0s) by DynaLoader::bootstrap at line 192, avg 267µs/call | |||||
# spent 44µs within DynaLoader::dl_undef_symbols which was called 14 times, avg 3µs/call:
# 14 times (44µs+0s) by DynaLoader::bootstrap at line 197, avg 3µs/call |