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<span class="siteTitle">NYTProf Performance Profile</span>
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<span class="siteSubtitle">Run on Tue Feb 24 07:41:47 2015<br />Reported on Tue Feb 24 07:41:51 2015</span>
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<div class="body_content"><br />
<table class="file_summary"><tr><td class="h">Filename</td><td align="left"><a href="file:///usr/lib/perl5/5.20.1/x86_64-linux-thread-multi/DynaLoader.pm">/usr/lib/perl5/5.20.1/x86_64-linux-thread-multi/DynaLoader.pm</a></td></tr>
<tr><td class="h">Statements</td><td align="left">Executed 74 statements in 1.08ms</td></tr></table>
<table id="subs_table" border="1" cellpadding="0" class="tablesorter">
<caption>Subroutines</caption>
<thead>
<tr>
<th>Calls</th>
<th><span title="Number of Places sub is called from">P</span></th>
<th><span title="Number of Files sub is called from">F</span></th>
<th>Exclusive<br />Time</th>
<th>Inclusive<br />Time</th>
<th>Subroutine</th>
</tr>
</thead>
<tbody>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c0"><span title="0.0%">409µs</span></td><td class="c0"><span title="0.0%">940µs</span></td><td class="sub_name"><span style="display: none;">DynaLoader::::BEGIN@22</span>DynaLoader::<a href="DynaLoader-pm-6-line.html#22">BEGIN@22</a></td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c0"><span title="0.0%">50µs</span></td><td class="c0"><span title="0.0%">140µs</span></td><td class="sub_name"><span style="display: none;">DynaLoader::::bootstrap</span>DynaLoader::<a href="DynaLoader-pm-6-line.html#109">bootstrap</a></td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c0"><span title="0.0%">30µs</span></td><td class="c0"><span title="0.0%">30µs</span></td><td class="sub_name"><span style="display: none;">DynaLoader::::dl_load_file</span>DynaLoader::<a href="DynaLoader-pm-6-line.html#DynaLoader__dl_load_file">dl_load_file</a> (xsub)</td></tr>
<tr><td class="c1">2</td><td class="c1">2</td><td class="c3">1</td><td class="c1"><span title="0.0%">14µs</span></td><td class="c1"><span title="0.0%">14µs</span></td><td class="sub_name"><span style="display: none;">DynaLoader::::CORE:subst</span>DynaLoader::<a href="DynaLoader-pm-6-line.html#DynaLoader__CORE_subst">CORE:subst</a> (opcode)</td></tr>
<tr><td class="c0">11</td><td class="c3">1</td><td class="c3">1</td><td class="c1"><span title="0.0%">13µs</span></td><td class="c1"><span title="0.0%">13µs</span></td><td class="sub_name"><span style="display: none;">DynaLoader::::CORE:ftdir</span>DynaLoader::<a href="DynaLoader-pm-6-line.html#DynaLoader__CORE_ftdir">CORE:ftdir</a> (opcode)</td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c3"><span title="0.0%">5µs</span></td><td class="c3"><span title="0.0%">5µs</span></td><td class="sub_name"><span style="display: none;">DynaLoader::::BEGIN@18</span>DynaLoader::<a href="DynaLoader-pm-6-line.html#18">BEGIN@18</a></td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c3"><span title="0.0%">3µs</span></td><td class="c3"><span title="0.0%">3µs</span></td><td class="sub_name"><span style="display: none;">DynaLoader::::dl_install_xsub</span>DynaLoader::<a href="DynaLoader-pm-6-line.html#DynaLoader__dl_install_xsub">dl_install_xsub</a> (xsub)</td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c3"><span title="0.0%">1µs</span></td><td class="c3"><span title="0.0%">1µs</span></td><td class="sub_name"><span style="display: none;">DynaLoader::::CORE:ftfile</span>DynaLoader::<a href="DynaLoader-pm-6-line.html#DynaLoader__CORE_ftfile">CORE:ftfile</a> (opcode)</td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c3"><span title="0.0%">1µs</span></td><td class="c3"><span title="0.0%">1µs</span></td><td class="sub_name"><span style="display: none;">DynaLoader::::CORE:ftsize</span>DynaLoader::<a href="DynaLoader-pm-6-line.html#DynaLoader__CORE_ftsize">CORE:ftsize</a> (opcode)</td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c3"><span title="0.0%">1µs</span></td><td class="c3"><span title="0.0%">1µs</span></td><td class="sub_name"><span style="display: none;">DynaLoader::::dl_find_symbol</span>DynaLoader::<a href="DynaLoader-pm-6-line.html#DynaLoader__dl_find_symbol">dl_find_symbol</a> (xsub)</td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c3"><span title="0.0%">700ns</span></td><td class="c3"><span title="0.0%">700ns</span></td><td class="sub_name"><span style="display: none;">DynaLoader::::dl_load_flags</span>DynaLoader::<a href="DynaLoader-pm-6-line.html#39">dl_load_flags</a></td></tr>
<tr><td class="c3">1</td><td class="c3">1</td><td class="c3">1</td><td class="c3"><span title="0.0%">500ns</span></td><td class="c3"><span title="0.0%">500ns</span></td><td class="sub_name"><span style="display: none;">DynaLoader::::dl_undef_symbols</span>DynaLoader::<a href="DynaLoader-pm-6-line.html#DynaLoader__dl_undef_symbols">dl_undef_symbols</a> (xsub)</td></tr>
<tr><td class="c3">0</td><td class="c3">0</td><td class="c3">0</td><td class="c3"><span title="0.0%">0s</span></td><td class="c3"><span title="0.0%">0s</span></td><td class="sub_name"><span style="display: none;">DynaLoader::::bootstrap_inherit</span>DynaLoader::<a href="DynaLoader-pm-6-line.html#101">bootstrap_inherit</a></td></tr>
<tr><td class="c3">0</td><td class="c3">0</td><td class="c3">0</td><td class="c3"><span title="0.0%">0s</span></td><td class="c3"><span title="0.0%">0s</span></td><td class="sub_name"><span style="display: none;">DynaLoader::::croak</span>DynaLoader::<a href="DynaLoader-pm-6-line.html#99">croak</a></td></tr>
<tr><td class="c3">0</td><td class="c3">0</td><td class="c3">0</td><td class="c3"><span title="0.0%">0s</span></td><td class="c3"><span title="0.0%">0s</span></td><td class="sub_name"><span style="display: none;">DynaLoader::::dl_expandspec</span>DynaLoader::<a href="DynaLoader-pm-6-line.html#297">dl_expandspec</a></td></tr>
<tr><td class="c3">0</td><td class="c3">0</td><td class="c3">0</td><td class="c3"><span title="0.0%">0s</span></td><td class="c3"><span title="0.0%">0s</span></td><td class="sub_name"><span style="display: none;">DynaLoader::::dl_find_symbol_anywhere</span>DynaLoader::<a href="DynaLoader-pm-6-line.html#319">dl_find_symbol_anywhere</a></td></tr>
<tr><td class="c3">0</td><td class="c3">0</td><td class="c3">0</td><td class="c3"><span title="0.0%">0s</span></td><td class="c3"><span title="0.0%">0s</span></td><td class="sub_name"><span style="display: none;">DynaLoader::::dl_findfile</span>DynaLoader::<a href="DynaLoader-pm-6-line.html#219">dl_findfile</a></td></tr>
</tbody></table>
Call graph for these subroutines as a
<a href="http://en.wikipedia.org/wiki/Graphviz">Graphviz</a>
<a href="usr-lib-perl5-5-20-1-x86_64-linux-thread-multi-DynaLoader-pm.dot">dot language file</a>.
<table border="1" cellpadding="0">
<thead>
<tr><th>Line</th>
<th><span title="Number of statements executed">State<br />ments</span></th>
<th><span title="Time spend executing statements on the line,
excluding time spent executing statements in any called subroutines">Time<br />on line</span></th>
<th><span title="Number of subroutines calls">Calls</span></th>
<th><span title="Time spent in subroutines called (inclusive)">Time<br />in subs</span></th>
<th class="left_indent_header">Code</th>
</tr>
</thead>
<tbody>
<tr><td class="h"><a name="1"></a>1</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="2"></a>2</td><td></td><td></td><td></td><td></td><td class="s"># Generated from DynaLoader_pm.PL</td></tr>
<tr><td class="h"><a name="3"></a>3</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="4"></a>4</td><td></td><td></td><td></td><td></td><td class="s">package DynaLoader;</td></tr>
<tr><td class="h"><a name="5"></a>5</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="6"></a>6</td><td></td><td></td><td></td><td></td><td class="s"># And Gandalf said: 'Many folk like to know beforehand what is to</td></tr>
<tr><td class="h"><a name="7"></a>7</td><td></td><td></td><td></td><td></td><td class="s"># be set on the table; but those who have laboured to prepare the</td></tr>
<tr><td class="h"><a name="8"></a>8</td><td></td><td></td><td></td><td></td><td class="s"># feast like to keep their secret; for wonder makes the words of</td></tr>
<tr><td class="h"><a name="9"></a>9</td><td></td><td></td><td></td><td></td><td class="s"># praise louder.'</td></tr>
<tr><td class="h"><a name="10"></a>10</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="11"></a>11</td><td></td><td></td><td></td><td></td><td class="s"># (Quote from Tolkien suggested by Anno Siegel.)</td></tr>
<tr><td class="h"><a name="12"></a>12</td><td></td><td></td><td></td><td></td><td class="s">#</td></tr>
<tr><td class="h"><a name="13"></a>13</td><td></td><td></td><td></td><td></td><td class="s"># See pod text at end of file for documentation.</td></tr>
<tr><td class="h"><a name="14"></a>14</td><td></td><td></td><td></td><td></td><td class="s"># See also ext/DynaLoader/README in source tree for other information.</td></tr>
<tr><td class="h"><a name="15"></a>15</td><td></td><td></td><td></td><td></td><td class="s">#</td></tr>
<tr><td class="h"><a name="16"></a>16</td><td></td><td></td><td></td><td></td><td class="s"># Tim.Bunce@ig.co.uk, August 1994</td></tr>
<tr><td class="h"><a name="17"></a>17</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="18"></a>18</td><td></td><td></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 5µs within DynaLoader::BEGIN@18 which was called:
# once (5µs+0s) by main::BEGIN@10 at <a href="DynaLoader-pm-6-line.html#20">line 20</a></div></div>BEGIN {</td></tr>
<tr><td class="h"><a name="19"></a>19</td><td class="c3">1</td><td class="c0"><span title="Avg 3µs">3µs</span></td><td></td><td></td><td class="s"> $VERSION = '1.25';</td></tr>
<tr><td class="h"><a name="20"></a>20</td><td class="c3">1</td><td class="c0"><span title="Avg 12µs">12µs</span></td><td class="c3">1</td><td class="c1">5µs</td><td class="s">}<div class="calls"><div class="calls_out"># spent 5µs making 1 call to <a href="DynaLoader-pm-6-line.html#18">DynaLoader::BEGIN@18</a></div></div></td></tr>
<tr><td class="h"><a name="21"></a>21</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="22"></a>22</td><td class="c1">2</td><td class="c0"><span title="Avg 445µs">890µs</span></td><td class="c1">2</td><td class="c0">946µs</td><td class="s"><div class="calls"><div class="calls_in"># spent 940µs (409+530) within DynaLoader::BEGIN@22 which was called:
# once (409µs+530µs) by main::BEGIN@10 at <a href="DynaLoader-pm-6-line.html#22">line 22</a></div></div>use Config;<div class="calls"><div class="calls_out"># spent 940µs making 1 call to <a href="DynaLoader-pm-6-line.html#22">DynaLoader::BEGIN@22</a>
# spent 7µs making 1 call to <a href="Config-pm-7-line.html#40">Config::import</a></div></div></td></tr>
<tr><td class="h"><a name="23"></a>23</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="24"></a>24</td><td></td><td></td><td></td><td></td><td class="s"># enable debug/trace messages from DynaLoader perl code</td></tr>
<tr><td class="h"><a name="25"></a>25</td><td class="c3">1</td><td class="c3"><span title="Avg 900ns">900ns</span></td><td></td><td></td><td class="s">$dl_debug = $ENV{PERL_DL_DEBUG} || 0 unless defined $dl_debug;</td></tr>
<tr><td class="h"><a name="26"></a>26</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="27"></a>27</td><td></td><td></td><td></td><td></td><td class="s">#</td></tr>
<tr><td class="h"><a name="28"></a>28</td><td></td><td></td><td></td><td></td><td class="s"># Flags to alter dl_load_file behaviour. Assigned bits:</td></tr>
<tr><td class="h"><a name="29"></a>29</td><td></td><td></td><td></td><td></td><td class="s"># 0x01 make symbols available for linking later dl_load_file's.</td></tr>
<tr><td class="h"><a name="30"></a>30</td><td></td><td></td><td></td><td></td><td class="s"># (only known to work on Solaris 2 using dlopen(RTLD_GLOBAL))</td></tr>
<tr><td class="h"><a name="31"></a>31</td><td></td><td></td><td></td><td></td><td class="s"># (ignored under VMS; effect is built-in to image linking)</td></tr>
<tr><td class="h"><a name="32"></a>32</td><td></td><td></td><td></td><td></td><td class="s"># (ignored under Android; the linker always uses RTLD_LOCAL)</td></tr>
<tr><td class="h"><a name="33"></a>33</td><td></td><td></td><td></td><td></td><td class="s">#</td></tr>
<tr><td class="h"><a name="34"></a>34</td><td></td><td></td><td></td><td></td><td class="s"># This is called as a class method $module->dl_load_flags. The</td></tr>
<tr><td class="h"><a name="35"></a>35</td><td></td><td></td><td></td><td></td><td class="s"># definition here will be inherited and result on "default" loading</td></tr>
<tr><td class="h"><a name="36"></a>36</td><td></td><td></td><td></td><td></td><td class="s"># behaviour unless a sub-class of DynaLoader defines its own version.</td></tr>
<tr><td class="h"><a name="37"></a>37</td><td></td><td></td><td></td><td></td><td class="s">#</td></tr>
<tr><td class="h"><a name="38"></a>38</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="39"></a>39</td><td class="c3">1</td><td class="c1"><span title="Avg 2µs">2µs</span></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 700ns within DynaLoader::dl_load_flags which was called:
# once (700ns+0s) by DynaLoader::bootstrap at <a href="DynaLoader-pm-6-line.html#191">line 191</a></div></div>sub dl_load_flags { 0x00 }</td></tr>
<tr><td class="h"><a name="40"></a>40</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="41"></a>41</td><td class="c3">1</td><td class="c0"><span title="Avg 6µs">6µs</span></td><td class="c0">3</td><td class="c2">4µs</td><td class="s">($dl_dlext, $dl_so, $dlsrc) = @Config::Config{qw(dlext so dlsrc)};<div class="calls"><div class="calls_out"># spent 4µs making 3 calls to <a href="Config-pm-7-line.html#66">Config::FETCH</a>, avg 1µs/call</div></div></td></tr>
<tr><td class="h"><a name="42"></a>42</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="43"></a>43</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="44"></a>44</td><td class="c3">1</td><td class="c3"><span title="Avg 100ns">100ns</span></td><td></td><td></td><td class="s">$do_expand = 0;</td></tr>
<tr><td class="h"><a name="45"></a>45</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="46"></a>46</td><td class="c3">1</td><td class="c3"><span title="Avg 400ns">400ns</span></td><td></td><td></td><td class="s">@dl_require_symbols = (); # names of symbols we need</td></tr>
<tr><td class="h"><a name="47"></a>47</td><td class="c3">1</td><td class="c3"><span title="Avg 100ns">100ns</span></td><td></td><td></td><td class="s">@dl_resolve_using = (); # names of files to link with</td></tr>
<tr><td class="h"><a name="48"></a>48</td><td class="c3">1</td><td class="c3"><span title="Avg 100ns">100ns</span></td><td></td><td></td><td class="s">@dl_library_path = (); # path to look for files</td></tr>
<tr><td class="h"><a name="49"></a>49</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="50"></a>50</td><td></td><td></td><td></td><td></td><td class="s">#XSLoader.pm may have added elements before we were required</td></tr>
<tr><td class="h"><a name="51"></a>51</td><td></td><td></td><td></td><td></td><td class="s">#@dl_shared_objects = (); # shared objects for symbols we have </td></tr>
<tr><td class="h"><a name="52"></a>52</td><td></td><td></td><td></td><td></td><td class="s">#@dl_librefs = (); # things we have loaded</td></tr>
<tr><td class="h"><a name="53"></a>53</td><td></td><td></td><td></td><td></td><td class="s">#@dl_modules = (); # Modules we have loaded</td></tr>
<tr><td class="h"><a name="54"></a>54</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="55"></a>55</td><td></td><td></td><td></td><td></td><td class="s"># This is a fix to support DLD's unfortunate desire to relink -lc</td></tr>
<tr><td class="h"><a name="56"></a>56</td><td class="c3">1</td><td class="c3"><span title="Avg 200ns">200ns</span></td><td></td><td></td><td class="s">@dl_resolve_using = dl_findfile('-lc') if $dlsrc eq "dl_dld.xs";</td></tr>
<tr><td class="h"><a name="57"></a>57</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="58"></a>58</td><td></td><td></td><td></td><td></td><td class="s"># Initialise @dl_library_path with the 'standard' library path</td></tr>
<tr><td class="h"><a name="59"></a>59</td><td></td><td></td><td></td><td></td><td class="s"># for this platform as determined by Configure.</td></tr>
<tr><td class="h"><a name="60"></a>60</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="61"></a>61</td><td class="c3">1</td><td class="c0"><span title="Avg 8µs">8µs</span></td><td class="c3">1</td><td class="c3">800ns</td><td class="s">push(@dl_library_path, split(' ', $Config::Config{libpth}));<div class="calls"><div class="calls_out"># spent 800ns making 1 call to <a href="Config-pm-7-line.html#66">Config::FETCH</a></div></div></td></tr>
<tr><td class="h"><a name="62"></a>62</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="63"></a>63</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="64"></a>64</td><td class="c3">1</td><td class="c2"><span title="Avg 1µs">1µs</span></td><td class="c3">1</td><td class="c3">900ns</td><td class="s">my $ldlibpthname = $Config::Config{ldlibpthname};<div class="calls"><div class="calls_out"># spent 900ns making 1 call to <a href="Config-pm-7-line.html#66">Config::FETCH</a></div></div></td></tr>
<tr><td class="h"><a name="65"></a>65</td><td class="c3">1</td><td class="c2"><span title="Avg 1µs">1µs</span></td><td class="c3">1</td><td class="c3">500ns</td><td class="s">my $ldlibpthname_defined = defined $Config::Config{ldlibpthname};<div class="calls"><div class="calls_out"># spent 500ns making 1 call to <a href="Config-pm-7-line.html#66">Config::FETCH</a></div></div></td></tr>
<tr><td class="h"><a name="66"></a>66</td><td class="c3">1</td><td class="c3"><span title="Avg 900ns">900ns</span></td><td class="c3">1</td><td class="c3">500ns</td><td class="s">my $pthsep = $Config::Config{path_sep};<div class="calls"><div class="calls_out"># spent 500ns making 1 call to <a href="Config-pm-7-line.html#66">Config::FETCH</a></div></div></td></tr>
<tr><td class="h"><a name="67"></a>67</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="68"></a>68</td><td></td><td></td><td></td><td></td><td class="s"># Add to @dl_library_path any extra directories we can gather from environment</td></tr>
<tr><td class="h"><a name="69"></a>69</td><td></td><td></td><td></td><td></td><td class="s"># during runtime.</td></tr>
<tr><td class="h"><a name="70"></a>70</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="71"></a>71</td><td class="c3">1</td><td class="c3"><span title="Avg 400ns">400ns</span></td><td></td><td></td><td class="s">if ($ldlibpthname_defined &&</td></tr>
<tr><td class="h"><a name="72"></a>72</td><td></td><td></td><td></td><td></td><td class="s"> exists $ENV{$ldlibpthname}) {</td></tr>
<tr><td class="h"><a name="73"></a>73</td><td></td><td></td><td></td><td></td><td class="s"> push(@dl_library_path, split(/$pthsep/, $ENV{$ldlibpthname}));</td></tr>
<tr><td class="h"><a name="74"></a>74</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="75"></a>75</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="76"></a>76</td><td></td><td></td><td></td><td></td><td class="s"># E.g. HP-UX supports both its native SHLIB_PATH *and* LD_LIBRARY_PATH.</td></tr>
<tr><td class="h"><a name="77"></a>77</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="78"></a>78</td><td class="c3">1</td><td class="c3"><span title="Avg 200ns">200ns</span></td><td></td><td></td><td class="s">if ($ldlibpthname_defined &&</td></tr>
<tr><td class="h"><a name="79"></a>79</td><td></td><td></td><td></td><td></td><td class="s"> $ldlibpthname ne 'LD_LIBRARY_PATH' &&</td></tr>
<tr><td class="h"><a name="80"></a>80</td><td></td><td></td><td></td><td></td><td class="s"> exists $ENV{LD_LIBRARY_PATH}) {</td></tr>
<tr><td class="h"><a name="81"></a>81</td><td></td><td></td><td></td><td></td><td class="s"> push(@dl_library_path, split(/$pthsep/, $ENV{LD_LIBRARY_PATH}));</td></tr>
<tr><td class="h"><a name="82"></a>82</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="83"></a>83</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="84"></a>84</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="85"></a>85</td><td></td><td></td><td></td><td></td><td class="s"># No prizes for guessing why we don't say 'bootstrap DynaLoader;' here.</td></tr>
<tr><td class="h"><a name="86"></a>86</td><td></td><td></td><td></td><td></td><td class="s"># NOTE: All dl_*.xs (including dl_none.xs) define a dl_error() XSUB</td></tr>
<tr><td class="h"><a name="87"></a>87</td><td class="c3">1</td><td class="c3"><span title="Avg 300ns">300ns</span></td><td></td><td></td><td class="s">boot_DynaLoader('DynaLoader') if defined(&boot_DynaLoader) &&</td></tr>
<tr><td class="h"><a name="88"></a>88</td><td></td><td></td><td></td><td></td><td class="s"> !defined(&dl_error);</td></tr>
<tr><td class="h"><a name="89"></a>89</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="90"></a>90</td><td class="c3">1</td><td class="c3"><span title="Avg 100ns">100ns</span></td><td></td><td></td><td class="s">if ($dl_debug) {</td></tr>
<tr><td class="h"><a name="91"></a>91</td><td></td><td></td><td></td><td></td><td class="s"> print STDERR "DynaLoader.pm loaded (@INC, @dl_library_path)\n";</td></tr>
<tr><td class="h"><a name="92"></a>92</td><td></td><td></td><td></td><td></td><td class="s"> print STDERR "DynaLoader not linked into this perl\n"</td></tr>
<tr><td class="h"><a name="93"></a>93</td><td></td><td></td><td></td><td></td><td class="s"> unless defined(&boot_DynaLoader);</td></tr>
<tr><td class="h"><a name="94"></a>94</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="95"></a>95</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="96"></a>96</td><td class="c3">1</td><td class="c0"><span title="Avg 9µs">9µs</span></td><td></td><td></td><td class="s">1; # End of main code</td></tr>
<tr><td class="h"><a name="97"></a>97</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="98"></a>98</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="99"></a>99</td><td></td><td></td><td></td><td></td><td class="s">sub croak { require Carp; Carp::croak(@_) }</td></tr>
<tr><td class="h"><a name="100"></a>100</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="101"></a>101</td><td></td><td></td><td></td><td></td><td class="s">sub bootstrap_inherit {</td></tr>
<tr><td class="h"><a name="102"></a>102</td><td></td><td></td><td></td><td></td><td class="s"> my $module = $_[0];</td></tr>
<tr><td class="h"><a name="103"></a>103</td><td></td><td></td><td></td><td></td><td class="s"> local *isa = *{"$module\::ISA"};</td></tr>
<tr><td class="h"><a name="104"></a>104</td><td></td><td></td><td></td><td></td><td class="s"> local @isa = (@isa, 'DynaLoader');</td></tr>
<tr><td class="h"><a name="105"></a>105</td><td></td><td></td><td></td><td></td><td class="s"> # Cannot goto due to delocalization. Will report errors on a wrong line?</td></tr>
<tr><td class="h"><a name="106"></a>106</td><td></td><td></td><td></td><td></td><td class="s"> bootstrap(@_);</td></tr>
<tr><td class="h"><a name="107"></a>107</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="108"></a>108</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="109"></a>109</td><td></td><td></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 140µs (50+90) within DynaLoader::bootstrap which was called:
# once (50µs+90µs) by main::BEGIN@10 at <a href="Time-HiRes-pm-4-line.html#66">line 66 of Time/HiRes.pm</a></div></div>sub bootstrap {</td></tr>
<tr><td class="h"><a name="110"></a>110</td><td></td><td></td><td></td><td></td><td class="s"> # use local vars to enable $module.bs script to edit values</td></tr>
<tr><td class="h"><a name="111"></a>111</td><td class="c3">1</td><td class="c3"><span title="Avg 700ns">700ns</span></td><td></td><td></td><td class="s"> local(@args) = @_;</td></tr>
<tr><td class="h"><a name="112"></a>112</td><td class="c3">1</td><td class="c3"><span title="Avg 300ns">300ns</span></td><td></td><td></td><td class="s"> local($module) = $args[0];</td></tr>
<tr><td class="h"><a name="113"></a>113</td><td class="c3">1</td><td class="c3"><span title="Avg 200ns">200ns</span></td><td></td><td></td><td class="s"> local(@dirs, $file);</td></tr>
<tr><td class="h"><a name="114"></a>114</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="115"></a>115</td><td class="c3">1</td><td class="c3"><span title="Avg 200ns">200ns</span></td><td></td><td></td><td class="s"> unless ($module) {</td></tr>
<tr><td class="h"><a name="116"></a>116</td><td></td><td></td><td></td><td></td><td class="s"> require Carp;</td></tr>
<tr><td class="h"><a name="117"></a>117</td><td></td><td></td><td></td><td></td><td class="s"> Carp::confess("Usage: DynaLoader::bootstrap(module)");</td></tr>
<tr><td class="h"><a name="118"></a>118</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="119"></a>119</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="120"></a>120</td><td></td><td></td><td></td><td></td><td class="s"> # A common error on platforms which don't support dynamic loading.</td></tr>
<tr><td class="h"><a name="121"></a>121</td><td></td><td></td><td></td><td></td><td class="s"> # Since it's fatal and potentially confusing we give a detailed message.</td></tr>
<tr><td class="h"><a name="122"></a>122</td><td class="c3">1</td><td class="c3"><span title="Avg 300ns">300ns</span></td><td></td><td></td><td class="s"> croak("Can't load module $module, dynamic loading not available in this perl.\n".</td></tr>
<tr><td class="h"><a name="123"></a>123</td><td></td><td></td><td></td><td></td><td class="s"> " (You may need to build a new perl executable which either supports\n".</td></tr>
<tr><td class="h"><a name="124"></a>124</td><td></td><td></td><td></td><td></td><td class="s"> " dynamic loading or has the $module module statically linked into it.)\n")</td></tr>
<tr><td class="h"><a name="125"></a>125</td><td></td><td></td><td></td><td></td><td class="s"> unless defined(&dl_load_file);</td></tr>
<tr><td class="h"><a name="126"></a>126</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="- -"></a>- -</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="129"></a>129</td><td class="c3">1</td><td class="c2"><span title="Avg 1µs">1µs</span></td><td></td><td></td><td class="s"> my @modparts = split(/::/,$module);</td></tr>
<tr><td class="h"><a name="130"></a>130</td><td class="c3">1</td><td class="c3"><span title="Avg 400ns">400ns</span></td><td></td><td></td><td class="s"> my $modfname = $modparts[-1];</td></tr>
<tr><td class="h"><a name="131"></a>131</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="132"></a>132</td><td></td><td></td><td></td><td></td><td class="s"> # Some systems have restrictions on files names for DLL's etc.</td></tr>
<tr><td class="h"><a name="133"></a>133</td><td></td><td></td><td></td><td></td><td class="s"> # mod2fname returns appropriate file base name (typically truncated)</td></tr>
<tr><td class="h"><a name="134"></a>134</td><td></td><td></td><td></td><td></td><td class="s"> # It may also edit @modparts if required.</td></tr>
<tr><td class="h"><a name="135"></a>135</td><td class="c3">1</td><td class="c3"><span title="Avg 100ns">100ns</span></td><td></td><td></td><td class="s"> $modfname = &mod2fname(\@modparts) if defined &mod2fname;</td></tr>
<tr><td class="h"><a name="136"></a>136</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="137"></a>137</td><td></td><td></td><td></td><td></td><td class="s"> </td></tr>
<tr><td class="h"><a name="138"></a>138</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="139"></a>139</td><td class="c3">1</td><td class="c3"><span title="Avg 800ns">800ns</span></td><td></td><td></td><td class="s"> my $modpname = join('/',@modparts);</td></tr>
<tr><td class="h"><a name="140"></a>140</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="141"></a>141</td><td class="c3">1</td><td class="c3"><span title="Avg 100ns">100ns</span></td><td></td><td></td><td class="s"> print STDERR "DynaLoader::bootstrap for $module ",</td></tr>
<tr><td class="h"><a name="142"></a>142</td><td></td><td></td><td></td><td></td><td class="s"> "(auto/$modpname/$modfname.$dl_dlext)\n"</td></tr>
<tr><td class="h"><a name="143"></a>143</td><td></td><td></td><td></td><td></td><td class="s"> if $dl_debug;</td></tr>
<tr><td class="h"><a name="144"></a>144</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="145"></a>145</td><td class="c3">1</td><td class="c2"><span title="Avg 1µs">1µs</span></td><td></td><td></td><td class="s"> foreach (@INC) {</td></tr>
<tr><td class="h"><a name="146"></a>146</td><td></td><td></td><td></td><td></td><td class="s"> </td></tr>
<tr><td class="h"><a name="147"></a>147</td><td class="c0">11</td><td class="c0"><span title="Avg 264ns">3µs</span></td><td></td><td></td><td class="s"> my $dir = "$_/auto/$modpname";</td></tr>
<tr><td class="h"><a name="148"></a>148</td><td></td><td></td><td></td><td></td><td class="s"> </td></tr>
<tr><td class="h"><a name="149"></a>149</td><td class="c0">11</td><td class="c0"><span title="Avg 2µs">25µs</span></td><td class="c0">11</td><td class="c0">13µs</td><td class="s"> next unless -d $dir; # skip over uninteresting directories<div class="calls"><div class="calls_out"> # spent 13µs making 11 calls to <a href="DynaLoader-pm-6-line.html#DynaLoader__CORE_ftdir">DynaLoader::CORE:ftdir</a>, avg 1µs/call</div></div></td></tr>
<tr><td class="h"><a name="150"></a>150</td><td></td><td></td><td></td><td></td><td class="s"> </td></tr>
<tr><td class="h"><a name="151"></a>151</td><td></td><td></td><td></td><td></td><td class="s"> # check for common cases to avoid autoload of dl_findfile</td></tr>
<tr><td class="h"><a name="152"></a>152</td><td class="c3">1</td><td class="c3"><span title="Avg 600ns">600ns</span></td><td></td><td></td><td class="s"> my $try = "$dir/$modfname.$dl_dlext";</td></tr>
<tr><td class="h"><a name="153"></a>153</td><td class="c3">1</td><td class="c0"><span title="Avg 4µs">4µs</span></td><td class="c3">1</td><td class="c3">1µs</td><td class="s"> last if $file = ($do_expand) ? dl_expandspec($try) : ((-f $try) && $try);<div class="calls"><div class="calls_out"> # spent 1µs making 1 call to <a href="DynaLoader-pm-6-line.html#DynaLoader__CORE_ftfile">DynaLoader::CORE:ftfile</a></div></div></td></tr>
<tr><td class="h"><a name="154"></a>154</td><td></td><td></td><td></td><td></td><td class="s"> </td></tr>
<tr><td class="h"><a name="155"></a>155</td><td></td><td></td><td></td><td></td><td class="s"> # no luck here, save dir for possible later dl_findfile search</td></tr>
<tr><td class="h"><a name="156"></a>156</td><td></td><td></td><td></td><td></td><td class="s"> push @dirs, $dir;</td></tr>
<tr><td class="h"><a name="157"></a>157</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="158"></a>158</td><td></td><td></td><td></td><td></td><td class="s"> # last resort, let dl_findfile have a go in all known locations</td></tr>
<tr><td class="h"><a name="159"></a>159</td><td class="c3">1</td><td class="c3"><span title="Avg 100ns">100ns</span></td><td></td><td></td><td class="s"> $file = dl_findfile(map("-L$_",@dirs,@INC), $modfname) unless $file;</td></tr>
<tr><td class="h"><a name="160"></a>160</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="161"></a>161</td><td class="c3">1</td><td class="c3"><span title="Avg 100ns">100ns</span></td><td></td><td></td><td class="s"> croak("Can't locate loadable object for module $module in \@INC (\@INC contains: @INC)")</td></tr>
<tr><td class="h"><a name="162"></a>162</td><td></td><td></td><td></td><td></td><td class="s"> unless $file; # wording similar to error from 'require'</td></tr>
<tr><td class="h"><a name="163"></a>163</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="164"></a>164</td><td></td><td></td><td></td><td></td><td class="s"> </td></tr>
<tr><td class="h"><a name="165"></a>165</td><td class="c3">1</td><td class="c3"><span title="Avg 400ns">400ns</span></td><td></td><td></td><td class="s"> my $bootname = "boot_$module";</td></tr>
<tr><td class="h"><a name="166"></a>166</td><td class="c3">1</td><td class="c0"><span title="Avg 4µs">4µs</span></td><td class="c3">1</td><td class="c3">2µs</td><td class="s"> $bootname =~ s/\W/_/g;<div class="calls"><div class="calls_out"> # spent 2µs making 1 call to <a href="DynaLoader-pm-6-line.html#DynaLoader__CORE_subst">DynaLoader::CORE:subst</a></div></div></td></tr>
<tr><td class="h"><a name="167"></a>167</td><td class="c3">1</td><td class="c3"><span title="Avg 400ns">400ns</span></td><td></td><td></td><td class="s"> @dl_require_symbols = ($bootname);</td></tr>
<tr><td class="h"><a name="168"></a>168</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="169"></a>169</td><td></td><td></td><td></td><td></td><td class="s"> # Execute optional '.bootstrap' perl script for this module.</td></tr>
<tr><td class="h"><a name="170"></a>170</td><td></td><td></td><td></td><td></td><td class="s"> # The .bs file can be used to configure @dl_resolve_using etc to</td></tr>
<tr><td class="h"><a name="171"></a>171</td><td></td><td></td><td></td><td></td><td class="s"> # match the needs of the individual module on this architecture.</td></tr>
<tr><td class="h"><a name="172"></a>172</td><td class="c3">1</td><td class="c3"><span title="Avg 100ns">100ns</span></td><td></td><td></td><td class="s"> my $bs = $file;</td></tr>
<tr><td class="h"><a name="173"></a>173</td><td class="c3">1</td><td class="c0"><span title="Avg 13µs">13µs</span></td><td class="c3">1</td><td class="c0">11µs</td><td class="s"> $bs =~ s/(\.\w+)?(;\d*)?$/\.bs/; # look for .bs 'beside' the library<div class="calls"><div class="calls_out"> # spent 11µs making 1 call to <a href="DynaLoader-pm-6-line.html#DynaLoader__CORE_subst">DynaLoader::CORE:subst</a></div></div></td></tr>
<tr><td class="h"><a name="174"></a>174</td><td class="c3">1</td><td class="c0"><span title="Avg 4µs">4µs</span></td><td class="c3">1</td><td class="c3">1µs</td><td class="s"> if (-s $bs) { # only read file if it's not empty<div class="calls"><div class="calls_out"> # spent 1µs making 1 call to <a href="DynaLoader-pm-6-line.html#DynaLoader__CORE_ftsize">DynaLoader::CORE:ftsize</a></div></div></td></tr>
<tr><td class="h"><a name="175"></a>175</td><td></td><td></td><td></td><td></td><td class="s"> print STDERR "BS: $bs ($^O, $dlsrc)\n" if $dl_debug;</td></tr>
<tr><td class="h"><a name="176"></a>176</td><td></td><td></td><td></td><td></td><td class="s"> eval { do $bs; };</td></tr>
<tr><td class="h"><a name="177"></a>177</td><td></td><td></td><td></td><td></td><td class="s"> warn "$bs: $@\n" if $@;</td></tr>
<tr><td class="h"><a name="178"></a>178</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="179"></a>179</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="180"></a>180</td><td class="c3">1</td><td class="c3"><span title="Avg 100ns">100ns</span></td><td></td><td></td><td class="s"> my $boot_symbol_ref;</td></tr>
<tr><td class="h"><a name="181"></a>181</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="182"></a>182</td><td></td><td></td><td></td><td></td><td class="s"> </td></tr>
<tr><td class="h"><a name="183"></a>183</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="184"></a>184</td><td></td><td></td><td></td><td></td><td class="s"> # Many dynamic extension loading problems will appear to come from</td></tr>
<tr><td class="h"><a name="185"></a>185</td><td></td><td></td><td></td><td></td><td class="s"> # this section of code: XYZ failed at line 123 of DynaLoader.pm.</td></tr>
<tr><td class="h"><a name="186"></a>186</td><td></td><td></td><td></td><td></td><td class="s"> # Often these errors are actually occurring in the initialisation</td></tr>
<tr><td class="h"><a name="187"></a>187</td><td></td><td></td><td></td><td></td><td class="s"> # C code of the extension XS file. Perl reports the error as being</td></tr>
<tr><td class="h"><a name="188"></a>188</td><td></td><td></td><td></td><td></td><td class="s"> # in this perl code simply because this was the last perl code</td></tr>
<tr><td class="h"><a name="189"></a>189</td><td></td><td></td><td></td><td></td><td class="s"> # it executed.</td></tr>
<tr><td class="h"><a name="190"></a>190</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="191"></a>191</td><td class="c3">1</td><td class="c0"><span title="Avg 2µs">2µs</span></td><td class="c3">1</td><td class="c3">700ns</td><td class="s"> my $flags = $module->dl_load_flags;<div class="calls"><div class="calls_out"> # spent 700ns making 1 call to <a href="DynaLoader-pm-6-line.html#39">DynaLoader::dl_load_flags</a></div></div></td></tr>
<tr><td class="h"><a name="192"></a>192</td><td></td><td></td><td></td><td></td><td class="s"> </td></tr>
<tr><td class="h"><a name="193"></a>193</td><td class="c3">1</td><td class="c0"><span title="Avg 34µs">34µs</span></td><td class="c3">1</td><td class="c0">30µs</td><td class="s"> my $libref = dl_load_file($file, $flags) or<div class="calls"><div class="calls_out"> # spent 30µs making 1 call to <a href="DynaLoader-pm-6-line.html#DynaLoader__dl_load_file">DynaLoader::dl_load_file</a></div></div></td></tr>
<tr><td class="h"><a name="194"></a>194</td><td></td><td></td><td></td><td></td><td class="s"> croak("Can't load '$file' for module $module: ".dl_error());</td></tr>
<tr><td class="h"><a name="195"></a>195</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="196"></a>196</td><td class="c3">1</td><td class="c3"><span title="Avg 300ns">300ns</span></td><td></td><td></td><td class="s"> push(@dl_librefs,$libref); # record loaded object</td></tr>
<tr><td class="h"><a name="197"></a>197</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="198"></a>198</td><td class="c3">1</td><td class="c0"><span title="Avg 3µs">3µs</span></td><td class="c3">1</td><td class="c3">500ns</td><td class="s"> my @unresolved = dl_undef_symbols();<div class="calls"><div class="calls_out"> # spent 500ns making 1 call to <a href="DynaLoader-pm-6-line.html#DynaLoader__dl_undef_symbols">DynaLoader::dl_undef_symbols</a></div></div></td></tr>
<tr><td class="h"><a name="199"></a>199</td><td class="c3">1</td><td class="c3"><span title="Avg 300ns">300ns</span></td><td></td><td></td><td class="s"> if (@unresolved) {</td></tr>
<tr><td class="h"><a name="200"></a>200</td><td></td><td></td><td></td><td></td><td class="s"> require Carp;</td></tr>
<tr><td class="h"><a name="201"></a>201</td><td></td><td></td><td></td><td></td><td class="s"> Carp::carp("Undefined symbols present after loading $file: @unresolved\n");</td></tr>
<tr><td class="h"><a name="202"></a>202</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="203"></a>203</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="204"></a>204</td><td class="c3">1</td><td class="c0"><span title="Avg 3µs">3µs</span></td><td class="c3">1</td><td class="c3">1µs</td><td class="s"> $boot_symbol_ref = dl_find_symbol($libref, $bootname) or<div class="calls"><div class="calls_out"> # spent 1µs making 1 call to <a href="DynaLoader-pm-6-line.html#DynaLoader__dl_find_symbol">DynaLoader::dl_find_symbol</a></div></div></td></tr>
<tr><td class="h"><a name="205"></a>205</td><td></td><td></td><td></td><td></td><td class="s"> croak("Can't find '$bootname' symbol in $file\n");</td></tr>
<tr><td class="h"><a name="206"></a>206</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="207"></a>207</td><td class="c3">1</td><td class="c3"><span title="Avg 300ns">300ns</span></td><td></td><td></td><td class="s"> push(@dl_modules, $module); # record loaded module</td></tr>
<tr><td class="h"><a name="208"></a>208</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="209"></a>209</td><td class="c3">1</td><td class="c0"><span title="Avg 6µs">6µs</span></td><td class="c3">1</td><td class="c3">3µs</td><td class="s"> boot:<div class="calls"><div class="calls_out"> # spent 3µs making 1 call to <a href="DynaLoader-pm-6-line.html#DynaLoader__dl_install_xsub">DynaLoader::dl_install_xsub</a></div></div></td></tr>
<tr><td class="h"><a name="210"></a>210</td><td></td><td></td><td></td><td></td><td class="s"> my $xs = dl_install_xsub("${module}::bootstrap", $boot_symbol_ref, $file);</td></tr>
<tr><td class="h"><a name="211"></a>211</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="212"></a>212</td><td></td><td></td><td></td><td></td><td class="s"> # See comment block above</td></tr>
<tr><td class="h"><a name="213"></a>213</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="214"></a>214</td><td class="c3">1</td><td class="c3"><span title="Avg 200ns">200ns</span></td><td></td><td></td><td class="s"> push(@dl_shared_objects, $file); # record files loaded</td></tr>
<tr><td class="h"><a name="215"></a>215</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="216"></a>216</td><td class="c3">1</td><td class="c0"><span title="Avg 30µs">30µs</span></td><td class="c3">1</td><td class="c0">25µs</td><td class="s"> &$xs(@args);<div class="calls"><div class="calls_out"> # spent 25µs making 1 call to <a href="Time-HiRes-pm-4-line.html#Time__HiRes__bootstrap">Time::HiRes::bootstrap</a></div></div></td></tr>
<tr><td class="h"><a name="217"></a>217</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="218"></a>218</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="219"></a>219</td><td></td><td></td><td></td><td></td><td class="s">sub dl_findfile {</td></tr>
<tr><td class="h"><a name="220"></a>220</td><td></td><td></td><td></td><td></td><td class="s"> # Read ext/DynaLoader/DynaLoader.doc for detailed information.</td></tr>
<tr><td class="h"><a name="221"></a>221</td><td></td><td></td><td></td><td></td><td class="s"> # This function does not automatically consider the architecture</td></tr>
<tr><td class="h"><a name="222"></a>222</td><td></td><td></td><td></td><td></td><td class="s"> # or the perl library auto directories.</td></tr>
<tr><td class="h"><a name="223"></a>223</td><td></td><td></td><td></td><td></td><td class="s"> my (@args) = @_;</td></tr>
<tr><td class="h"><a name="224"></a>224</td><td></td><td></td><td></td><td></td><td class="s"> my (@dirs, $dir); # which directories to search</td></tr>
<tr><td class="h"><a name="225"></a>225</td><td></td><td></td><td></td><td></td><td class="s"> my (@found); # full paths to real files we have found</td></tr>
<tr><td class="h"><a name="226"></a>226</td><td></td><td></td><td></td><td></td><td class="s"> #my $dl_ext= 'so'; # $Config::Config{'dlext'} suffix for perl extensions</td></tr>
<tr><td class="h"><a name="227"></a>227</td><td></td><td></td><td></td><td></td><td class="s"> #my $dl_so = 'so'; # $Config::Config{'so'} suffix for shared libraries</td></tr>
<tr><td class="h"><a name="228"></a>228</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="229"></a>229</td><td></td><td></td><td></td><td></td><td class="s"> print STDERR "dl_findfile(@args)\n" if $dl_debug;</td></tr>
<tr><td class="h"><a name="230"></a>230</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="231"></a>231</td><td></td><td></td><td></td><td></td><td class="s"> # accumulate directories but process files as they appear</td></tr>
<tr><td class="h"><a name="232"></a>232</td><td></td><td></td><td></td><td></td><td class="s"> arg: foreach(@args) {</td></tr>
<tr><td class="h"><a name="233"></a>233</td><td></td><td></td><td></td><td></td><td class="s"> # Special fast case: full filepath requires no search</td></tr>
<tr><td class="h"><a name="234"></a>234</td><td></td><td></td><td></td><td></td><td class="s"> </td></tr>
<tr><td class="h"><a name="235"></a>235</td><td></td><td></td><td></td><td></td><td class="s"> </td></tr>
<tr><td class="h"><a name="236"></a>236</td><td></td><td></td><td></td><td></td><td class="s"> if (m:/: && -f $_) {</td></tr>
<tr><td class="h"><a name="237"></a>237</td><td></td><td></td><td></td><td></td><td class="s"> push(@found,$_);</td></tr>
<tr><td class="h"><a name="238"></a>238</td><td></td><td></td><td></td><td></td><td class="s"> last arg unless wantarray;</td></tr>
<tr><td class="h"><a name="239"></a>239</td><td></td><td></td><td></td><td></td><td class="s"> next;</td></tr>
<tr><td class="h"><a name="240"></a>240</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="241"></a>241</td><td></td><td></td><td></td><td></td><td class="s"> </td></tr>
<tr><td class="h"><a name="242"></a>242</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="243"></a>243</td><td></td><td></td><td></td><td></td><td class="s"> # Deal with directories first:</td></tr>
<tr><td class="h"><a name="244"></a>244</td><td></td><td></td><td></td><td></td><td class="s"> # Using a -L prefix is the preferred option (faster and more robust)</td></tr>
<tr><td class="h"><a name="245"></a>245</td><td></td><td></td><td></td><td></td><td class="s"> if (m:^-L:) { s/^-L//; push(@dirs, $_); next; }</td></tr>
<tr><td class="h"><a name="246"></a>246</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="247"></a>247</td><td></td><td></td><td></td><td></td><td class="s"> # Otherwise we try to try to spot directories by a heuristic</td></tr>
<tr><td class="h"><a name="248"></a>248</td><td></td><td></td><td></td><td></td><td class="s"> # (this is a more complicated issue than it first appears)</td></tr>
<tr><td class="h"><a name="249"></a>249</td><td></td><td></td><td></td><td></td><td class="s"> if (m:/: && -d $_) { push(@dirs, $_); next; }</td></tr>
<tr><td class="h"><a name="250"></a>250</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="251"></a>251</td><td></td><td></td><td></td><td></td><td class="s"> </td></tr>
<tr><td class="h"><a name="252"></a>252</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="253"></a>253</td><td></td><td></td><td></td><td></td><td class="s"> # Only files should get this far...</td></tr>
<tr><td class="h"><a name="254"></a>254</td><td></td><td></td><td></td><td></td><td class="s"> my(@names, $name); # what filenames to look for</td></tr>
<tr><td class="h"><a name="255"></a>255</td><td></td><td></td><td></td><td></td><td class="s"> if (m:-l: ) { # convert -lname to appropriate library name</td></tr>
<tr><td class="h"><a name="256"></a>256</td><td></td><td></td><td></td><td></td><td class="s"> s/-l//;</td></tr>
<tr><td class="h"><a name="257"></a>257</td><td></td><td></td><td></td><td></td><td class="s"> push(@names,"lib$_.$dl_so");</td></tr>
<tr><td class="h"><a name="258"></a>258</td><td></td><td></td><td></td><td></td><td class="s"> push(@names,"lib$_.a");</td></tr>
<tr><td class="h"><a name="259"></a>259</td><td></td><td></td><td></td><td></td><td class="s"> } else { # Umm, a bare name. Try various alternatives:</td></tr>
<tr><td class="h"><a name="260"></a>260</td><td></td><td></td><td></td><td></td><td class="s"> # these should be ordered with the most likely first</td></tr>
<tr><td class="h"><a name="261"></a>261</td><td></td><td></td><td></td><td></td><td class="s"> push(@names,"$_.$dl_dlext") unless m/\.$dl_dlext$/o;</td></tr>
<tr><td class="h"><a name="262"></a>262</td><td></td><td></td><td></td><td></td><td class="s"> push(@names,"$_.$dl_so") unless m/\.$dl_so$/o;</td></tr>
<tr><td class="h"><a name="263"></a>263</td><td></td><td></td><td></td><td></td><td class="s"> </td></tr>
<tr><td class="h"><a name="264"></a>264</td><td></td><td></td><td></td><td></td><td class="s"> push(@names,"lib$_.$dl_so") unless m:/:;</td></tr>
<tr><td class="h"><a name="265"></a>265</td><td></td><td></td><td></td><td></td><td class="s"> push(@names,"$_.a") if !m/\.a$/ and $dlsrc eq "dl_dld.xs";</td></tr>
<tr><td class="h"><a name="266"></a>266</td><td></td><td></td><td></td><td></td><td class="s"> push(@names, $_);</td></tr>
<tr><td class="h"><a name="267"></a>267</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="268"></a>268</td><td></td><td></td><td></td><td></td><td class="s"> my $dirsep = '/';</td></tr>
<tr><td class="h"><a name="269"></a>269</td><td></td><td></td><td></td><td></td><td class="s"> </td></tr>
<tr><td class="h"><a name="270"></a>270</td><td></td><td></td><td></td><td></td><td class="s"> foreach $dir (@dirs, @dl_library_path) {</td></tr>
<tr><td class="h"><a name="271"></a>271</td><td></td><td></td><td></td><td></td><td class="s"> next unless -d $dir;</td></tr>
<tr><td class="h"><a name="272"></a>272</td><td></td><td></td><td></td><td></td><td class="s"> </td></tr>
<tr><td class="h"><a name="273"></a>273</td><td></td><td></td><td></td><td></td><td class="s"> foreach $name (@names) {</td></tr>
<tr><td class="h"><a name="274"></a>274</td><td></td><td></td><td></td><td></td><td class="s"> my($file) = "$dir$dirsep$name";</td></tr>
<tr><td class="h"><a name="275"></a>275</td><td></td><td></td><td></td><td></td><td class="s"> print STDERR " checking in $dir for $name\n" if $dl_debug;</td></tr>
<tr><td class="h"><a name="276"></a>276</td><td></td><td></td><td></td><td></td><td class="s"> $file = ($do_expand) ? dl_expandspec($file) : (-f $file && $file);</td></tr>
<tr><td class="h"><a name="277"></a>277</td><td></td><td></td><td></td><td></td><td class="s"> #$file = _check_file($file);</td></tr>
<tr><td class="h"><a name="278"></a>278</td><td></td><td></td><td></td><td></td><td class="s"> if ($file) {</td></tr>
<tr><td class="h"><a name="279"></a>279</td><td></td><td></td><td></td><td></td><td class="s"> push(@found, $file);</td></tr>
<tr><td class="h"><a name="280"></a>280</td><td></td><td></td><td></td><td></td><td class="s"> next arg; # no need to look any further</td></tr>
<tr><td class="h"><a name="281"></a>281</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="282"></a>282</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="283"></a>283</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="284"></a>284</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="285"></a>285</td><td></td><td></td><td></td><td></td><td class="s"> if ($dl_debug) {</td></tr>
<tr><td class="h"><a name="286"></a>286</td><td></td><td></td><td></td><td></td><td class="s"> foreach(@dirs) {</td></tr>
<tr><td class="h"><a name="287"></a>287</td><td></td><td></td><td></td><td></td><td class="s"> print STDERR " dl_findfile ignored non-existent directory: $_\n" unless -d $_;</td></tr>
<tr><td class="h"><a name="288"></a>288</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="289"></a>289</td><td></td><td></td><td></td><td></td><td class="s"> print STDERR "dl_findfile found: @found\n";</td></tr>
<tr><td class="h"><a name="290"></a>290</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="291"></a>291</td><td></td><td></td><td></td><td></td><td class="s"> return $found[0] unless wantarray;</td></tr>
<tr><td class="h"><a name="292"></a>292</td><td></td><td></td><td></td><td></td><td class="s"> @found;</td></tr>
<tr><td class="h"><a name="293"></a>293</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="294"></a>294</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="- -"></a>- -</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="297"></a>297</td><td></td><td></td><td></td><td></td><td class="s">sub dl_expandspec {</td></tr>
<tr><td class="h"><a name="298"></a>298</td><td></td><td></td><td></td><td></td><td class="s"> my($spec) = @_;</td></tr>
<tr><td class="h"><a name="299"></a>299</td><td></td><td></td><td></td><td></td><td class="s"> # Optional function invoked if DynaLoader.pm sets $do_expand.</td></tr>
<tr><td class="h"><a name="300"></a>300</td><td></td><td></td><td></td><td></td><td class="s"> # Most systems do not require or use this function.</td></tr>
<tr><td class="h"><a name="301"></a>301</td><td></td><td></td><td></td><td></td><td class="s"> # Some systems may implement it in the dl_*.xs file in which case</td></tr>
<tr><td class="h"><a name="302"></a>302</td><td></td><td></td><td></td><td></td><td class="s"> # this Perl version should be excluded at build time.</td></tr>
<tr><td class="h"><a name="303"></a>303</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="304"></a>304</td><td></td><td></td><td></td><td></td><td class="s"> # This function is designed to deal with systems which treat some</td></tr>
<tr><td class="h"><a name="305"></a>305</td><td></td><td></td><td></td><td></td><td class="s"> # 'filenames' in a special way. For example VMS 'Logical Names'</td></tr>
<tr><td class="h"><a name="306"></a>306</td><td></td><td></td><td></td><td></td><td class="s"> # (something like unix environment variables - but different).</td></tr>
<tr><td class="h"><a name="307"></a>307</td><td></td><td></td><td></td><td></td><td class="s"> # This function should recognise such names and expand them into</td></tr>
<tr><td class="h"><a name="308"></a>308</td><td></td><td></td><td></td><td></td><td class="s"> # full file paths.</td></tr>
<tr><td class="h"><a name="309"></a>309</td><td></td><td></td><td></td><td></td><td class="s"> # Must return undef if $spec is invalid or file does not exist.</td></tr>
<tr><td class="h"><a name="310"></a>310</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="311"></a>311</td><td></td><td></td><td></td><td></td><td class="s"> my $file = $spec; # default output to input</td></tr>
<tr><td class="h"><a name="312"></a>312</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="313"></a>313</td><td></td><td></td><td></td><td></td><td class="s"> return undef unless -f $file;</td></tr>
<tr><td class="h"><a name="314"></a>314</td><td></td><td></td><td></td><td></td><td class="s"> print STDERR "dl_expandspec($spec) => $file\n" if $dl_debug;</td></tr>
<tr><td class="h"><a name="315"></a>315</td><td></td><td></td><td></td><td></td><td class="s"> $file;</td></tr>
<tr><td class="h"><a name="316"></a>316</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="317"></a>317</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="318"></a>318</td><td></td><td></td><td></td><td></td><td class="s">sub dl_find_symbol_anywhere</td></tr>
<tr><td class="h"><a name="319"></a>319</td><td></td><td></td><td></td><td></td><td class="s">{</td></tr>
<tr><td class="h"><a name="320"></a>320</td><td></td><td></td><td></td><td></td><td class="s"> my $sym = shift;</td></tr>
<tr><td class="h"><a name="321"></a>321</td><td></td><td></td><td></td><td></td><td class="s"> my $libref;</td></tr>
<tr><td class="h"><a name="322"></a>322</td><td></td><td></td><td></td><td></td><td class="s"> foreach $libref (@dl_librefs) {</td></tr>
<tr><td class="h"><a name="323"></a>323</td><td></td><td></td><td></td><td></td><td class="s"> my $symref = dl_find_symbol($libref,$sym);</td></tr>
<tr><td class="h"><a name="324"></a>324</td><td></td><td></td><td></td><td></td><td class="s"> return $symref if $symref;</td></tr>
<tr><td class="h"><a name="325"></a>325</td><td></td><td></td><td></td><td></td><td class="s"> }</td></tr>
<tr><td class="h"><a name="326"></a>326</td><td></td><td></td><td></td><td></td><td class="s"> return undef;</td></tr>
<tr><td class="h"><a name="327"></a>327</td><td></td><td></td><td></td><td></td><td class="s">}</td></tr>
<tr><td class="h"><a name="328"></a>328</td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="329"></a>329</td><td></td><td></td><td></td><td></td><td class="s">__END__</td></tr>
<tr><td class="s"><a name=""></a> </td><td></td><td></td><td></td><td></td><td class="s"></td></tr>
<tr><td class="h"><a name="DynaLoader__CORE_ftdir"></a></td><td></td><td></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 13µs within DynaLoader::CORE:ftdir which was called 11 times, avg 1µs/call:
# 11 times (13µs+0s) by DynaLoader::bootstrap at <a href="DynaLoader-pm-6-line.html#149">line 149</a>, avg 1µs/call</div></div>sub DynaLoader::CORE:ftdir; # opcode<br /> </td></tr>
<tr><td class="h"><a name="DynaLoader__CORE_ftfile"></a></td><td></td><td></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 1µs within DynaLoader::CORE:ftfile which was called:
# once (1µs+0s) by DynaLoader::bootstrap at <a href="DynaLoader-pm-6-line.html#153">line 153</a></div></div>sub DynaLoader::CORE:ftfile; # opcode<br /> </td></tr>
<tr><td class="h"><a name="DynaLoader__CORE_ftsize"></a></td><td></td><td></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 1µs within DynaLoader::CORE:ftsize which was called:
# once (1µs+0s) by DynaLoader::bootstrap at <a href="DynaLoader-pm-6-line.html#174">line 174</a></div></div>sub DynaLoader::CORE:ftsize; # opcode<br /> </td></tr>
<tr><td class="h"><a name="DynaLoader__CORE_subst"></a></td><td></td><td></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 14µs within DynaLoader::CORE:subst which was called 2 times, avg 7µs/call:
# once (11µs+0s) by DynaLoader::bootstrap at <a href="DynaLoader-pm-6-line.html#173">line 173</a>
# once (2µs+0s) by DynaLoader::bootstrap at <a href="DynaLoader-pm-6-line.html#166">line 166</a></div></div>sub DynaLoader::CORE:subst; # opcode<br /> </td></tr>
<tr><td class="h"><a name="DynaLoader__dl_find_symbol"></a></td><td></td><td></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 1µs within DynaLoader::dl_find_symbol which was called:
# once (1µs+0s) by DynaLoader::bootstrap at <a href="DynaLoader-pm-6-line.html#204">line 204</a></div></div>sub DynaLoader::dl_find_symbol; # xsub<br /> </td></tr>
<tr><td class="h"><a name="DynaLoader__dl_install_xsub"></a></td><td></td><td></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 3µs within DynaLoader::dl_install_xsub which was called:
# once (3µs+0s) by DynaLoader::bootstrap at <a href="DynaLoader-pm-6-line.html#209">line 209</a></div></div>sub DynaLoader::dl_install_xsub; # xsub<br /> </td></tr>
<tr><td class="h"><a name="DynaLoader__dl_load_file"></a></td><td></td><td></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 30µs within DynaLoader::dl_load_file which was called:
# once (30µs+0s) by DynaLoader::bootstrap at <a href="DynaLoader-pm-6-line.html#193">line 193</a></div></div>sub DynaLoader::dl_load_file; # xsub<br /> </td></tr>
<tr><td class="h"><a name="DynaLoader__dl_undef_symbols"></a></td><td></td><td></td><td></td><td></td><td class="s"><div class="calls"><div class="calls_in"># spent 500ns within DynaLoader::dl_undef_symbols which was called:
# once (500ns+0s) by DynaLoader::bootstrap at <a href="DynaLoader-pm-6-line.html#198">line 198</a></div></div>sub DynaLoader::dl_undef_symbols; # xsub<br /> </td></tr>
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