Profile of XSLoader.pm

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For script/ponapi
Run on Wed Feb 10 15:51:26 2016
Reported on Thu Feb 11 09:43:10 2016

Filename | /usr/share/perl/5.18/XSLoader.pm
Statements | Executed 2 statements in 97µs

Subroutines
Calls | P | F | Exclusive Time | Inclusive Time | Subroutine
--- | --- | --- | --- | --- | ---
22 | 22 | 22 | 5.92ms | 6.62ms | XSLoader::::loadXSLoader::load (recurses: max depth 1, inclusive time 113µs)
0 | 0 | 0 | 0s | 0s | XSLoader::::bootstrap_inheritXSLoader::bootstrap_inherit

Call graph for these subroutines as a Graphviz dot language file.

Line | State ments | Time on line | Calls | Time in subs | Code
--- | --- | --- | --- | --- | ---
1 |  |  |  |  | # Generated from XSLoader.pm.PL (resolved %Config::Config value)
2 |  |  |  |  |
3 |  |  |  |  | package XSLoader;
4 |  |  |  |  |
5 |  |  |  |  | $VERSION = "0.16";
6 |  |  |  |  |
7 |  |  |  |  | #use strict;
8 |  |  |  |  |
9 |  |  |  |  | package DynaLoader;
10 |  |  |  |  |
11 |  |  |  |  | # No prizes for guessing why we don't say 'bootstrap DynaLoader;' here.
12 |  |  |  |  | # NOTE: All dl_*.xs (including dl_none.xs) define a dl_error() XSUB
13 |  |  |  |  | boot_DynaLoader('DynaLoader') if defined(&boot_DynaLoader) &&
14 |  |  |  |  | !defined(&dl_error);
15 |  |  |  |  | package XSLoader;
16 |  |  |  |  |
17 |  |  |  |  | # spent 6.62ms (5.92+700µs) within XSLoader::load which was called 22 times, avg 301µs/call: # once (1.90ms+0s) by Module::Runtime::require_module at line 42 of Params/Validate/XS.pm # once (241µs+813µs) by PONAPI::Server::BEGIN@14 at line 1492 of JSON/XS.pm # once (496µs+0s) by B::BEGIN@17 at line 27 of B.pm # once (414µs+0s) by PONAPI::Server::BEGIN@34 at line 36 of POSIX.pm # once (290µs+0s) by PerlIO::import at line 4 of PerlIO/scalar.pm # once (271µs+0s) by IO::Socket::BEGIN@12 at line 179 of Socket.pm # once (215µs+0s) by HTTP::Body::BEGIN@25 at line 73 of Storable.pm # once (203µs+0s) by File::stat::BEGIN@30 at line 11 of Fcntl.pm # once (185µs+0s) by YAML::XS::BEGIN@19 at line 7 of YAML/XS/LibYAML.pm # once (182µs+0s) by Scope::Upper::BEGIN@201 at line 203 of Scope/Upper.pm # once (177µs+0s) by Moose::Util::TypeConstraints::BEGIN@621 at line 85 of re.pm # once (171µs+0s) by IO::Handle::BEGIN@9 at line 11 of IO.pm # once (147µs+0s) by Module::Pluggable::Object::BEGIN@4 at line 22 of List/Util.pm # once (146µs+0s) by Data::Dumper::BEGIN@24 at line 34 of Data/Dumper.pm # once (139µs+0s) by Plack::HTTPParser::try {...} at line 31 of HTTP/Parser/XS.pm # once (128µs+0s) by Module::Runtime::require_module at line 21 of Package/Stash/XS.pm # once (123µs+0s) by Module::Pluggable::Object::BEGIN@4 at line 80 of Cwd.pm # once (116µs+0s) by Module::Runtime::require_module at line 17 of Class/Load/XS.pm # once (113µs+0s) by Sub::Identify::BEGIN@6 at line 17 of Sub/Identify.pm # once (104µs+0s) by MRO::Compat::BEGIN@10 at line 41 of mro.pm # once (44µs+0s) by Moose::Exporter::BEGIN@8 at line 31 of Class/MOP.pm # once (113µs+-113µs) by DynaLoader::BEGIN@92 at line 110 of attributes.pm sub load {
18 |  |  |  |  | package DynaLoader;
19 |  |  |  |  |
20 |  |  |  |  | my ($module, $modlibname) = caller();
21 |  |  |  |  |
22 |  |  |  |  | if (@_) {
23 |  |  |  |  | $module = $_[0];
24 |  |  |  |  | } else {
25 |  |  |  |  | $_[0] = $module;
26 |  |  |  |  | }
27 |  |  |  |  |
28 |  |  |  |  | # work with static linking too
29 |  |  |  |  | my $boots = "$module\::bootstrap";
30 |  |  |  |  | goto &$boots if defined &$boots;
31 |  |  |  |  |
32 |  |  |  |  | goto \&XSLoader::bootstrap_inherit unless $module and defined &dl_load_file;
33 |  |  |  |  |
34 |  |  |  |  | my @modparts = split(/::/,$module);
35 |  |  |  |  | my $modfname = $modparts[-1];
36 |  |  |  |  |
37 |  |  |  |  | my $modpname = join('/',@modparts);
38 |  |  |  |  | my $c = @modparts;
39 |  |  |  |  | $modlibname =~ s,[\\/][^\\/]+$,, while $c--; # Q&D basename
40 |  |  |  |  | my $file = "$modlibname/auto/$modpname/$modfname.so";
41 |  |  |  |  |
42 |  |  |  |  | # print STDERR "XSLoader::load for $module ($file)\n" if $dl_debug;
43 |  |  |  |  |
44 |  |  |  |  | my $bs = $file;
45 |  |  |  |  | $bs =~ s/(\.\w+)?(;\d*)?$/\.bs/; # look for .bs 'beside' the library
46 |  |  |  |  |
47 |  |  |  |  | if (-s $bs) { # only read file if it's not empty
48 |  |  |  |  | # print STDERR "BS: $bs ($^O, $dlsrc)\n" if $dl_debug;
49 |  |  |  |  | eval { do $bs; };
50 |  |  |  |  | warn "$bs: $@\n" if $@;
51 |  |  |  |  | }
52 |  |  |  |  |
53 |  |  |  |  | goto \&XSLoader::bootstrap_inherit if not -f $file or -s $bs;
54 |  |  |  |  |
55 |  |  |  |  | my $bootname = "boot_$module";
56 |  |  |  |  | $bootname =~ s/\W/_/g;
57 |  |  |  |  | @DynaLoader::dl_require_symbols = ($bootname);
58 |  |  |  |  |
59 |  |  |  |  | my $boot_symbol_ref;
60 |  |  |  |  |
61 |  |  |  |  | # Many dynamic extension loading problems will appear to come from
62 |  |  |  |  | # this section of code: XYZ failed at line 123 of DynaLoader.pm.
63 |  |  |  |  | # Often these errors are actually occurring in the initialisation
64 |  |  |  |  | # C code of the extension XS file. Perl reports the error as being
65 |  |  |  |  | # in this perl code simply because this was the last perl code
66 |  |  |  |  | # it executed.
67 |  |  |  |  |
68 |  |  |  |  | my $libref = dl_load_file($file, 0) or do {
69 |  |  |  |  | require Carp;
70 |  |  |  |  | Carp::croak("Can't load '$file' for module $module: " . dl_error());
71 |  |  |  |  | };
72 |  |  |  |  | push(@DynaLoader::dl_librefs,$libref); # record loaded object
73 |  |  |  |  |
74 |  |  |  |  | my @unresolved = dl_undef_symbols();
75 |  |  |  |  | if (@unresolved) {
76 |  |  |  |  | require Carp;
77 |  |  |  |  | Carp::carp("Undefined symbols present after loading $file: @unresolved\n");
78 |  |  |  |  | }
79 |  |  |  |  |
80 |  |  |  |  | $boot_symbol_ref = dl_find_symbol($libref, $bootname) or do {
81 |  |  |  |  | require Carp;
82 |  |  |  |  | Carp::croak("Can't find '$bootname' symbol in $file\n");
83 |  |  |  |  | };
84 |  |  |  |  |
85 |  |  |  |  | push(@DynaLoader::dl_modules, $module); # record loaded module
86 |  |  |  |  |
87 |  |  |  |  | boot:
88 |  |  |  |  | my $xs = dl_install_xsub($boots, $boot_symbol_ref, $file);
89 |  |  |  |  |
90 |  |  |  |  | # See comment block above
91 |  |  |  |  | push(@DynaLoader::dl_shared_objects, $file); # record files loaded
92 | 2 | 97µs | 1 | 31µs | return &$xs(@_); # spent 31µs making 1 call to attributes::import
93 |  |  |  |  | }
94 |  |  |  |  |
95 |  |  |  |  | sub bootstrap_inherit {
96 |  |  |  |  | require DynaLoader;
97 |  |  |  |  | goto \&DynaLoader::bootstrap_inherit;
98 |  |  |  |  | }
99 |  |  |  |  |
100 |  |  |  |  | 1;
101 |  |  |  |  |
102 |  |  |  |  | __END__
103 |  |  |  |  |