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For /usr/sbin/pkg_info
  Run on Fri Aug 4 10:12:01 2017
Reported on Fri Aug 4 10:12:17 2017

Filename/usr/libdata/perl5/constant.pm
StatementsExecuted 2938 statements in 8.58ms
Subroutines
Calls P F Exclusive
Time		 Inclusive
Time		 Subroutine
838375.52ms6.64msconstant::::importconstant::import
10911344µs344µsconstant::::CORE:regcompconstant::CORE:regcomp (opcode)
10911253µs253µsconstant::::CORE:substconstant::CORE:subst (opcode)
10911220µs220µsconstant::::CORE:matchconstant::CORE:match (opcode)
111213µs418µsconstant::::BEGIN@4constant::BEGIN@4
11125µs29µsconstant::::BEGIN@24constant::BEGIN@24
11120µs20µsconstant::::BEGIN@2constant::BEGIN@2
33114µs14µsconstant::::CORE:qrconstant::CORE:qr (opcode)
11110µs28µsconstant::::BEGIN@141constant::BEGIN@141
11110µs30µsconstant::::BEGIN@40constant::BEGIN@40
11110µs29µsconstant::::BEGIN@65constant::BEGIN@65
11110µs28µsconstant::::BEGIN@90constant::BEGIN@90
1119µs13µsconstant::::BEGIN@3constant::BEGIN@3
0000s0sconstant::::__ANON__[:174]constant::__ANON__[:174]
0000s0sconstant::::__ANON__[:190]constant::__ANON__[:190]
0000s0sconstant::::__ANON__[:192]constant::__ANON__[:192]
0000s0sconstant::::__ANON__[:41]constant::__ANON__[:41]
0000s0sconstant::::__ANON__[:42]constant::__ANON__[:42]
0000s0sconstant::::__ANON__[:43]constant::__ANON__[:43]
Call graph for these subroutines as a Graphviz dot language file.
Line State
ments		 Time
on line		 Calls Time
in subs		 Code
1package constant;
2247µs120µs
# spent 20µs within constant::BEGIN@2 which was called: # once (20µs+0s) by OpenBSD::PackageInfo::BEGIN@31 at line 2
use 5.008;
# spent 20µs making 1 call to constant::BEGIN@2
3234µs216µs
# spent 13µs (9+4) within constant::BEGIN@3 which was called: # once (9µs+4µs) by OpenBSD::PackageInfo::BEGIN@31 at line 3
use strict;
# spent 13µs making 1 call to constant::BEGIN@3 # spent 4µs making 1 call to strict::import
42457µs2624µs
# spent 418µs (213+206) within constant::BEGIN@4 which was called: # once (213µs+206µs) by OpenBSD::PackageInfo::BEGIN@31 at line 4
use warnings::register;
# spent 418µs making 1 call to constant::BEGIN@4 # spent 206µs making 1 call to warnings::register::import
5
611µsour $VERSION = '1.33';
7our %declared;
8
9#=======================================================================
10
11# Some names are evil choices.
12137µsmy %keywords = map +($_, 1), qw{ BEGIN INIT CHECK END DESTROY AUTOLOAD };
1312µs$keywords{UNITCHECK}++ if $] > 5.009;
14
1516µsmy %forced_into_main = map +($_, 1),
16 qw{ STDIN STDOUT STDERR ARGV ARGVOUT ENV INC SIG };
17
18112µsmy %forbidden = (%keywords, %forced_into_main);
19
20119µs111µsmy $normal_constant_name = qr/^_?[^\W_0-9]\w*\z/;
# spent 11µs making 1 call to constant::CORE:qr
2115µs12µsmy $tolerable = qr/^[A-Za-z_]\w*\z/;
# spent 2µs making 1 call to constant::CORE:qr
2215µs12µsmy $boolean = qr/^[01]?\z/;
# spent 2µs making 1 call to constant::CORE:qr
23
24
# spent 29µs (25+4) within constant::BEGIN@24 which was called: # once (25µs+4µs) by OpenBSD::PackageInfo::BEGIN@31 at line 45
BEGIN {
25 # We'd like to do use constant _CAN_PCS => $] > 5.009002
26 # but that's a bit tricky before we load the constant module :-)
27 # By doing this, we save several run time checks for *every* call
28 # to import.
2912µs my $const = $] > 5.009002;
3011µs my $downgrade = $] < 5.015004; # && $] >= 5.008
3112µs my $constarray = exists &_make_const;
32112µs if ($const) {
33111µs13µs Internals::SvREADONLY($const, 1);
# spent 3µs making 1 call to Internals::SvREADONLY
3414µs11µs Internals::SvREADONLY($downgrade, 1);
# spent 1µs making 1 call to Internals::SvREADONLY
3512µs $constant::{_CAN_PCS} = \$const;
361800ns $constant::{_DOWNGRADE} = \$downgrade;
3711µs $constant::{_CAN_PCS_FOR_ARRAY} = \$constarray;
38 }
39 else {
40298µs250µs
# spent 30µs (10+20) within constant::BEGIN@40 which was called: # once (10µs+20µs) by OpenBSD::PackageInfo::BEGIN@31 at line 40
no strict 'refs';
# spent 30µs making 1 call to constant::BEGIN@40 # spent 20µs making 1 call to strict::unimport
41 *{"_CAN_PCS"} = sub () {$const};
42 *{"_DOWNGRADE"} = sub () { $downgrade };
43 *{"_CAN_PCS_FOR_ARRAY"} = sub () { $constarray };
44 }
45186µs129µs}
# spent 29µs making 1 call to constant::BEGIN@24
46
47#=======================================================================
48# import() - import symbols into user's namespace
49#
50# What we actually do is define a function in the caller's namespace
51# which returns the value. The function we create will normally
52# be inlined as a constant, thereby avoiding further sub calling
53# overhead.
54#=======================================================================
55
# spent 6.64ms (5.52+1.12) within constant::import which was called 83 times, avg 80µs/call: # once (448µs+103µs) by OpenBSD::Ustar::BEGIN@25 at line 46 of OpenBSD/Ustar.pm # once (236µs+115µs) by Compress::Raw::Zlib::BEGIN@105 at line 105 of Compress/Raw/Zlib.pm # once (185µs+63µs) by OpenBSD::PackageInfo::BEGIN@31 at line 37 of OpenBSD/PackageInfo.pm # once (210µs+22µs) by IO::Compress::Base::Common::BEGIN@45 at line 45 of IO/Compress/Base/Common.pm # once (127µs+26µs) by OpenBSD::CompactWriter::BEGIN@738 at line 743 of OpenBSD/Ustar.pm # once (91µs+18µs) by IO::Compress::Base::Common::BEGIN@481 at line 481 of IO/Compress/Base/Common.pm # once (68µs+39µs) by Compress::Raw::Zlib::BEGIN@138 at line 138 of Compress/Raw/Zlib.pm # once (85µs+16µs) by Compress::Raw::Zlib::BEGIN@106 at line 106 of Compress/Raw/Zlib.pm # once (80µs+21µs) by Compress::Raw::Zlib::BEGIN@118 at line 118 of Compress/Raw/Zlib.pm # once (85µs+14µs) by Compress::Raw::Zlib::BEGIN@121 at line 121 of Compress/Raw/Zlib.pm # once (77µs+20µs) by File::Spec::Unix::BEGIN@130 at line 130 of File/Spec/Unix.pm # once (84µs+12µs) by Compress::Raw::Zlib::BEGIN@150 at line 150 of Compress/Raw/Zlib.pm # once (74µs+17µs) by IO::Compress::Base::Common::BEGIN@480 at line 480 of IO/Compress/Base/Common.pm # once (72µs+19µs) by Compress::Raw::Zlib::BEGIN@120 at line 120 of Compress/Raw/Zlib.pm # once (78µs+13µs) by Compress::Raw::Zlib::BEGIN@119 at line 119 of Compress/Raw/Zlib.pm # once (76µs+14µs) by Compress::Raw::Zlib::BEGIN@136 at line 136 of Compress/Raw/Zlib.pm # once (76µs+14µs) by IO::Compress::Base::Common::BEGIN@46 at line 46 of IO/Compress/Base/Common.pm # once (71µs+17µs) by IO::Compress::Base::Common::BEGIN@148 at line 148 of IO/Compress/Base/Common.pm # once (67µs+20µs) by Compress::Raw::Zlib::BEGIN@139 at line 139 of Compress/Raw/Zlib.pm # once (74µs+13µs) by Compress::Raw::Zlib::BEGIN@146 at line 146 of Compress/Raw/Zlib.pm # once (73µs+13µs) by IO::Compress::Base::Common::BEGIN@49 at line 49 of IO/Compress/Base/Common.pm # once (72µs+12µs) by IO::Compress::Base::Common::BEGIN@482 at line 482 of IO/Compress/Base/Common.pm # once (71µs+12µs) by IO::Compress::Base::Common::BEGIN@48 at line 48 of IO/Compress/Base/Common.pm # once (71µs+13µs) by IO::Compress::Base::Common::BEGIN@47 at line 47 of IO/Compress/Base/Common.pm # once (69µs+13µs) by IO::Compress::Base::Common::BEGIN@51 at line 51 of IO/Compress/Base/Common.pm # once (63µs+13µs) by Compress::Raw::Zlib::BEGIN@137 at line 137 of Compress/Raw/Zlib.pm # once (63µs+13µs) by Compress::Raw::Zlib::BEGIN@122 at line 122 of Compress/Raw/Zlib.pm # once (64µs+10µs) by IO::Compress::Base::Common::BEGIN@50 at line 50 of IO/Compress/Base/Common.pm # once (62µs+11µs) by Compress::Raw::Zlib::BEGIN@145 at line 145 of Compress/Raw/Zlib.pm # once (62µs+12µs) by Compress::Raw::Zlib::BEGIN@147 at line 147 of Compress/Raw/Zlib.pm # once (61µs+11µs) by Compress::Raw::Zlib::BEGIN@149 at line 149 of Compress/Raw/Zlib.pm # once (61µs+10µs) by Compress::Raw::Zlib::BEGIN@148 at line 148 of Compress/Raw/Zlib.pm # once (61µs+10µs) by IO::Compress::Base::Common::BEGIN@150 at line 150 of IO/Compress/Base/Common.pm # once (60µs+10µs) by IO::Uncompress::Base::BEGIN@14 at line 14 of IO/Uncompress/Base.pm # once (58µs+12µs) by IO::Compress::Gzip::Constants::BEGIN@65 at line 65 of IO/Compress/Gzip/Constants.pm # once (60µs+7µs) by U64::BEGIN@837 at line 837 of IO/Compress/Base/Common.pm # once (59µs+7µs) by IO::Compress::Gzip::Constants::BEGIN@143 at line 145 of IO/Compress/Gzip/Constants.pm # once (60µs+7µs) by IO::Compress::Gzip::Constants::BEGIN@115 at line 115 of IO/Compress/Gzip/Constants.pm # once (55µs+11µs) by IO::Compress::Base::Common::BEGIN@149 at line 149 of IO/Compress/Base/Common.pm # once (54µs+11µs) by IO::Compress::Base::Common::BEGIN@483 at line 483 of IO/Compress/Base/Common.pm # once (53µs+8µs) by IO::Uncompress::Base::BEGIN@15 at line 15 of IO/Uncompress/Base.pm # once (51µs+10µs) by U64::BEGIN@835 at line 835 of IO/Compress/Base/Common.pm # once (52µs+8µs) by IO::Compress::Base::Common::BEGIN@484 at line 484 of IO/Compress/Base/Common.pm # once (52µs+8µs) by File::Spec::Unix::BEGIN@139 at line 139 of File/Spec/Unix.pm # once (50µs+10µs) by File::Spec::Unix::BEGIN@223 at line 223 of File/Spec/Unix.pm # once (52µs+7µs) by IO::Compress::Base::Common::BEGIN@152 at line 152 of IO/Compress/Base/Common.pm # once (50µs+9µs) by IO::Compress::Base::Common::BEGIN@489 at line 489 of IO/Compress/Base/Common.pm # once (50µs+7µs) by IO::Compress::Base::Common::BEGIN@493 at line 493 of IO/Compress/Base/Common.pm # once (49µs+8µs) by IO::Compress::Base::Common::BEGIN@492 at line 492 of IO/Compress/Base/Common.pm # once (50µs+7µs) by IO::Compress::Gzip::Constants::BEGIN@76 at line 76 of IO/Compress/Gzip/Constants.pm # once (47µs+8µs) by IO::Compress::Base::Common::BEGIN@490 at line 490 of IO/Compress/Base/Common.pm # once (48µs+7µs) by IO::Compress::Gzip::Constants::BEGIN@69 at line 69 of IO/Compress/Gzip/Constants.pm # once (47µs+6µs) by IO::Compress::Gzip::Constants::BEGIN@113 at line 113 of IO/Compress/Gzip/Constants.pm # once (44µs+8µs) by File::Spec::Unix::BEGIN@245 at line 245 of File/Spec/Unix.pm # once (45µs+7µs) by IO::Compress::Base::Common::BEGIN@494 at line 494 of IO/Compress/Base/Common.pm # once (44µs+8µs) by U64::BEGIN@836 at line 836 of IO/Compress/Base/Common.pm # once (44µs+7µs) by IO::Compress::Base::Common::BEGIN@485 at line 485 of IO/Compress/Base/Common.pm # once (44µs+7µs) by IO::Compress::Gzip::Constants::BEGIN@70 at line 70 of IO/Compress/Gzip/Constants.pm # once (44µs+8µs) by IO::Compress::Gzip::Constants::BEGIN@66 at line 66 of IO/Compress/Gzip/Constants.pm # once (44µs+7µs) by IO::Compress::Base::Common::BEGIN@495 at line 495 of IO/Compress/Base/Common.pm # once (44µs+7µs) by IO::Compress::Base::Common::BEGIN@500 at line 500 of IO/Compress/Base/Common.pm # once (43µs+7µs) by IO::Compress::Base::Common::BEGIN@499 at line 499 of IO/Compress/Base/Common.pm # once (42µs+7µs) by U64::BEGIN@838 at line 838 of IO/Compress/Base/Common.pm # once (42µs+7µs) by IO::Compress::Gzip::Constants::BEGIN@92 at line 93 of IO/Compress/Gzip/Constants.pm # once (42µs+7µs) by IO::Compress::Gzip::Constants::BEGIN@109 at line 109 of IO/Compress/Gzip/Constants.pm # once (42µs+6µs) by File::Spec::Unix::BEGIN@148 at line 148 of File/Spec/Unix.pm # once (42µs+7µs) by IO::Compress::Gzip::Constants::BEGIN@80 at line 80 of IO/Compress/Gzip/Constants.pm # once (41µs+7µs) by IO::Compress::Gzip::Constants::BEGIN@75 at line 75 of IO/Compress/Gzip/Constants.pm # once (41µs+7µs) by IO::Compress::Gzip::Constants::BEGIN@77 at line 77 of IO/Compress/Gzip/Constants.pm # once (40µs+7µs) by IO::Compress::Gzip::Constants::BEGIN@86 at line 86 of IO/Compress/Gzip/Constants.pm # once (41µs+6µs) by IO::Compress::Gzip::Constants::BEGIN@74 at line 74 of IO/Compress/Gzip/Constants.pm # once (41µs+6µs) by IO::Compress::Gzip::Constants::BEGIN@67 at line 67 of IO/Compress/Gzip/Constants.pm # once (41µs+6µs) by IO::Compress::Gzip::Constants::BEGIN@73 at line 73 of IO/Compress/Gzip/Constants.pm # once (40µs+7µs) by IO::Compress::Gzip::Constants::BEGIN@119 at line 119 of IO/Compress/Gzip/Constants.pm # once (40µs+7µs) by IO::Compress::Gzip::Constants::BEGIN@114 at line 114 of IO/Compress/Gzip/Constants.pm # once (40µs+7µs) by IO::Compress::Gzip::Constants::BEGIN@78 at line 78 of IO/Compress/Gzip/Constants.pm # once (40µs+6µs) by IO::Compress::Gzip::Constants::BEGIN@84 at line 84 of IO/Compress/Gzip/Constants.pm # once (40µs+7µs) by IO::Compress::Gzip::Constants::BEGIN@89 at line 89 of IO/Compress/Gzip/Constants.pm # once (39µs+7µs) by IO::Compress::Gzip::Constants::BEGIN@90 at line 91 of IO/Compress/Gzip/Constants.pm # once (40µs+6µs) by IO::Compress::Gzip::Constants::BEGIN@111 at line 111 of IO/Compress/Gzip/Constants.pm # once (40µs+6µs) by IO::Compress::Gzip::Constants::BEGIN@88 at line 88 of IO/Compress/Gzip/Constants.pm # once (40µs+6µs) by IO::Compress::Gzip::Constants::BEGIN@87 at line 87 of IO/Compress/Gzip/Constants.pm # once (39µs+6µs) by IO::Compress::Gzip::Constants::BEGIN@82 at line 82 of IO/Compress/Gzip/Constants.pm
sub import {
568389µs my $class = shift;
578370µs return unless @_; # Ignore 'use constant;'
588361µs my $constants;
598388µs my $multiple = ref $_[0];
6083108µs my $caller = caller;
618358µs my $flush_mro;
62 my $symtab;
63
6483121µs if (_CAN_PCS) {
652140µs248µs
# spent 29µs (10+19) within constant::BEGIN@65 which was called: # once (10µs+19µs) by OpenBSD::PackageInfo::BEGIN@31 at line 65
no strict 'refs';
# spent 29µs making 1 call to constant::BEGIN@65 # spent 19µs making 1 call to strict::unimport
6683153µs $symtab = \%{$caller . '::'};
67 };
68
6983124µs if ( $multiple ) {
7034µs if (ref $_[0] ne 'HASH') {
71 require Carp;
72 Carp::croak("Invalid reference type '".ref(shift)."' not 'HASH'");
73 }
7432µs $constants = shift;
75 } else {
768062µs unless (defined $_[0]) {
77 require Carp;
78 Carp::croak("Can't use undef as constant name");
79 }
8080162µs $constants->{+shift} = undef;
81 }
82
8383253µs foreach my $name ( keys %$constants ) {
8410970µs my $pkg;
8510975µs my $symtab = $symtab;
8610983µs my $orig_name = $name;
87109727µs109253µs if ($name =~ s/(.*)(?:::|')(?=.)//s) {
# spent 253µs making 109 calls to constant::CORE:subst, avg 2µs/call
88 $pkg = $1;
89 if (_CAN_PCS && $pkg ne $caller) {
902231µs246µs
# spent 28µs (10+18) within constant::BEGIN@90 which was called: # once (10µs+18µs) by OpenBSD::PackageInfo::BEGIN@31 at line 90
no strict 'refs';
# spent 28µs making 1 call to constant::BEGIN@90 # spent 18µs making 1 call to strict::unimport
91 $symtab = \%{$pkg . '::'};
92 }
93 }
94 else {
9510983µs $pkg = $caller;
96 }
97
98 # Normal constant name
991091.20ms218564µs if ($name =~ $normal_constant_name and !$forbidden{$name}) {
# spent 344µs making 109 calls to constant::CORE:regcomp, avg 3µs/call # spent 220µs making 109 calls to constant::CORE:match, avg 2µs/call
100 # Everything is okay
101
102 # Name forced into main, but we're not in main. Fatal.
103 } elsif ($forced_into_main{$name} and $pkg ne 'main') {
104 require Carp;
105 Carp::croak("Constant name '$name' is forced into main::");
106
107 # Starts with double underscore. Fatal.
108 } elsif ($name =~ /^__/) {
109 require Carp;
110 Carp::croak("Constant name '$name' begins with '__'");
111
112 # Maybe the name is tolerable
113 } elsif ($name =~ $tolerable) {
114 # Then we'll warn only if you've asked for warnings
115 if (warnings::enabled()) {
116 if ($keywords{$name}) {
117 warnings::warn("Constant name '$name' is a Perl keyword");
118 } elsif ($forced_into_main{$name}) {
119 warnings::warn("Constant name '$name' is " .
120 "forced into package main::");
121 }
122 }
123
124 # Looks like a boolean
125 # use constant FRED == fred;
126 } elsif ($name =~ $boolean) {
127 require Carp;
128 if (@_) {
129 Carp::croak("Constant name '$name' is invalid");
130 } else {
131 Carp::croak("Constant name looks like boolean value");
132 }
133
134 } else {
135 # Must have bad characters
136 require Carp;
137 Carp::croak("Constant name '$name' has invalid characters");
138 }
139
140 {
141111654µs246µs
# spent 28µs (10+18) within constant::BEGIN@141 which was called: # once (10µs+18µs) by OpenBSD::PackageInfo::BEGIN@31 at line 141
no strict 'refs';
# spent 28µs making 1 call to constant::BEGIN@141 # spent 18µs making 1 call to strict::unimport
142109128µs my $full_name = "${pkg}::$name";
143109248µs $declared{$full_name}++;
144109167µs if ($multiple || @_ == 1) {
14510989µs my $scalar = $multiple ? $constants->{$orig_name} : $_[0];
146
147 if (_DOWNGRADE) { # for 5.8 to 5.14
148 # Work around perl bug #31991: Sub names (actually glob
149 # names in general) ignore the UTF8 flag. So we have to
150 # turn it off to get the "right" symbol table entry.
151 utf8::is_utf8 $name and utf8::encode $name;
152 }
153
154 # The constant serves to optimise this entire block out on
155 # 5.8 and earlier.
156109158µs if (_CAN_PCS) {
157 # Use a reference as a proxy for a constant subroutine.
158 # If this is not a glob yet, it saves space. If it is
159 # a glob, we must still create it this way to get the
160 # right internal flags set, as constants are distinct
161 # from subroutines created with sub(){...}.
162 # The check in Perl_ck_rvconst knows that inlinable
163 # constants from cv_const_sv are read only. So we have to:
164109535µs109172µs Internals::SvREADONLY($scalar, 1);
# spent 172µs making 109 calls to Internals::SvREADONLY, avg 2µs/call
165109182µs if (!exists $symtab->{$name}) {
166109116µs $symtab->{$name} = \$scalar;
167109142µs ++$flush_mro->{$pkg};
168 }
169 else {
170 local $constant::{_dummy} = \$scalar;
171 *$full_name = \&{"_dummy"};
172 }
173 } else {
174 *$full_name = sub () { $scalar };
175 }
176 } elsif (@_) {
177 my @list = @_;
178 if (_CAN_PCS_FOR_ARRAY) {
179 _make_const($list[$_]) for 0..$#list;
180 _make_const(@list);
181 if (!exists $symtab->{$name}) {
182 $symtab->{$name} = \@list;
183 $flush_mro->{$pkg}++;
184 }
185 else {
186 local $constant::{_dummy} = \@list;
187 *$full_name = \&{"_dummy"};
188 }
189 }
190 else { *$full_name = sub () { @list }; }
191 } else {
192 *$full_name = sub () { };
193 }
194 }
195 }
196 # Flush the cache exactly once if we make any direct symbol table changes.
19783708µs if (_CAN_PCS && $flush_mro) {
19883636µs83130µs mro::method_changed_in($_) for keys %$flush_mro;
# spent 130µs making 83 calls to mro::method_changed_in, avg 2µs/call
199 }
200}
201
202111µs1;
203
204__END__
 
# spent 220µs within constant::CORE:match which was called 109 times, avg 2µs/call: # 109 times (220µs+0s) by constant::import at line 99, avg 2µs/call
sub constant::CORE:match; # opcode
# spent 14µs within constant::CORE:qr which was called 3 times, avg 5µs/call: # once (11µs+0s) by OpenBSD::PackageInfo::BEGIN@31 at line 20 # once (2µs+0s) by OpenBSD::PackageInfo::BEGIN@31 at line 21 # once (2µs+0s) by OpenBSD::PackageInfo::BEGIN@31 at line 22
sub constant::CORE:qr; # opcode
# spent 344µs within constant::CORE:regcomp which was called 109 times, avg 3µs/call: # 109 times (344µs+0s) by constant::import at line 99, avg 3µs/call
sub constant::CORE:regcomp; # opcode
# spent 253µs within constant::CORE:subst which was called 109 times, avg 2µs/call: # 109 times (253µs+0s) by constant::import at line 87, avg 2µs/call
sub constant::CORE:subst; # opcode
Report produced by the NYTProf 6.04 Perl profiler, developed by Tim Bunce based on work by Adam Kaplan and Salvador Fandiño García.