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118 lines
3.4 KiB
Perl
118 lines
3.4 KiB
Perl
# Generated from XSLoader.pm.PL (resolved %Config::Config value)
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package XSLoader;
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$VERSION = "0.10";
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#use strict;
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# enable debug/trace messages from DynaLoader perl code
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# $dl_debug = $ENV{PERL_DL_DEBUG} || 0 unless defined $dl_debug;
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my $dl_dlext = 'so';
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package DynaLoader;
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# No prizes for guessing why we don't say 'bootstrap DynaLoader;' here.
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# NOTE: All dl_*.xs (including dl_none.xs) define a dl_error() XSUB
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boot_DynaLoader('DynaLoader') if defined(&boot_DynaLoader) &&
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!defined(&dl_error);
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package XSLoader;
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sub load {
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package DynaLoader;
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die q{XSLoader::load('Your::Module', $Your::Module::VERSION)} unless @_;
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my($module) = $_[0];
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# work with static linking too
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my $boots = "$module\::bootstrap";
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goto &$boots if defined &$boots;
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goto retry unless $module and defined &dl_load_file;
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my @modparts = split(/::/,$module);
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my $modfname = $modparts[-1];
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my $modpname = join('/',@modparts);
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my $modlibname = (caller())[1];
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my $c = @modparts;
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$modlibname =~ s,[\\/][^\\/]+$,, while $c--; # Q&D basename
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my $file = "$modlibname/auto/$modpname/$modfname.$dl_dlext";
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# print STDERR "XSLoader::load for $module ($file)\n" if $dl_debug;
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my $bs = $file;
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$bs =~ s/(\.\w+)?(;\d*)?$/\.bs/; # look for .bs 'beside' the library
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if (-s $bs) { # only read file if it's not empty
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# print STDERR "BS: $bs ($^O, $dlsrc)\n" if $dl_debug;
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eval { do $bs; };
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warn "$bs: $@\n" if $@;
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}
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goto retry if not -f $file or -s $bs;
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my $bootname = "boot_$module";
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$bootname =~ s/\W/_/g;
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@DynaLoader::dl_require_symbols = ($bootname);
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my $boot_symbol_ref;
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# Many dynamic extension loading problems will appear to come from
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# this section of code: XYZ failed at line 123 of DynaLoader.pm.
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# Often these errors are actually occurring in the initialisation
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# C code of the extension XS file. Perl reports the error as being
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# in this perl code simply because this was the last perl code
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# it executed.
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my $libref = dl_load_file($file, 0) or do {
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require Carp;
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Carp::croak("Can't load '$file' for module $module: " . dl_error());
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};
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push(@DynaLoader::dl_librefs,$libref); # record loaded object
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my @unresolved = dl_undef_symbols();
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if (@unresolved) {
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require Carp;
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Carp::carp("Undefined symbols present after loading $file: @unresolved\n");
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}
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$boot_symbol_ref = dl_find_symbol($libref, $bootname) or do {
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require Carp;
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Carp::croak("Can't find '$bootname' symbol in $file\n");
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};
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push(@DynaLoader::dl_modules, $module); # record loaded module
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boot:
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my $xs = dl_install_xsub($boots, $boot_symbol_ref, $file);
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# See comment block above
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push(@DynaLoader::dl_shared_objects, $file); # record files loaded
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return &$xs(@_);
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retry:
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my $bootstrap_inherit = DynaLoader->can('bootstrap_inherit') ||
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XSLoader->can('bootstrap_inherit');
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goto &$bootstrap_inherit;
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}
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# Versions of DynaLoader prior to 5.6.0 don't have this function.
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sub bootstrap_inherit {
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package DynaLoader;
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my $module = $_[0];
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local *DynaLoader::isa = *{"$module\::ISA"};
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local @DynaLoader::isa = (@DynaLoader::isa, 'DynaLoader');
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# Cannot goto due to delocalization. Will report errors on a wrong line?
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require DynaLoader;
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DynaLoader::bootstrap(@_);
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}
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1;
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__END__
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