use Config;
use strict;
-our $VERSION = "1.111";
+our $VERSION = "1.12";
my %err = ();
+my %wsa = ();
+
+# Symbian cross-compiling environment.
+my $IsSymbian = exists $ENV{SDK} && -d "$ENV{SDK}\\epoc32";
+
+my $IsMSWin32 = $^O eq 'MSWin32' && !$IsSymbian;
unlink "Errno.pm" if -f "Errno.pm";
-open OUT, ">Errno.pm" or die "Cannot open Errno.pm: $!";
+unlink "Errno.tmp" if -f "Errno.tmp";
+open OUT, ">Errno.tmp" or die "Cannot open Errno.tmp: $!";
select OUT;
my $file;
-foreach $file (get_files()) {
- process_file($file);
+my @files = get_files();
+if ($Config{gccversion} ne '' && $^O eq 'MSWin32') {
+ # MinGW complains "warning: #pragma system_header ignored outside include
+ # file" if the header files are processed individually, so include them
+ # all in .c file and process that instead.
+ open INCS, '>includes.c' or
+ die "Cannot open includes.c";
+ foreach $file (@files) {
+ next if $file eq 'errno.c';
+ next unless -f $file;
+ print INCS qq[#include "$file"\n];
+ }
+ close INCS;
+ process_file('includes.c');
+ unlink 'includes.c';
+}
+else {
+ foreach $file (@files) {
+ process_file($file);
+ }
}
write_errno_pm();
unlink "errno.c" if -f "errno.c";
+close OUT or die "Error closing Errno.tmp: $!";
+select STDOUT;
+rename "Errno.tmp", "Errno.pm" or die "Cannot rename Errno.tmp to Errno.pm: $!";
sub process_file {
my($file) = @_;
+ # for win32 perl under cygwin, we need to get a windows pathname
+ if ($^O eq 'MSWin32' && $Config{cc} =~ /\B-mno-cygwin\b/ &&
+ defined($file) && !-f $file) {
+ chomp($file = `cygpath -w "$file"`);
+ }
+
return unless defined $file and -f $file;
+# warn "Processing $file\n";
local *FH;
if (($^O eq 'VMS') && ($Config{vms_cc_type} ne 'gnuc')) {
warn "Cannot open '$file'";
return;
}
- } elsif ($Config{gccversion} ne '' &&
+ } elsif ($Config{gccversion} ne ''
# OpenSTEP has gcc 2.7.2.1 which recognizes but
# doesn't implement the -dM flag.
- $^O ne 'next4'
+ && $^O ne 'openstep' && $^O ne 'next' && $^O ne 'darwin'
) {
# With the -dM option, gcc outputs every #define it finds
unless(open(FH,"$Config{cc} -E -dM $Config{cppflags} $file |")) {
return;
}
}
-
+
if ($^O eq 'MacOS') {
while(<FH>) {
$err{$1} = $2
while(<FH>) {
$err{$1} = 1
if /^\s*#\s*define\s+(E\w+)\s+/;
+ if ($IsMSWin32) {
+ $wsa{$1} = 1
+ if /^\s*#\s*define\s+WSA(E\w+)\s+/;
+ }
}
}
+
close(FH);
}
$file{'../../vmesa/errno.h'} = 1;
} elsif ($Config{archname} eq 'epoc') {
# Watch out for cross compiling for EPOC (usually done on linux)
- $file{'/usr/local/epoc/include/libc/sys/errno.h'} = 1;
- } elsif ($^O eq 'linux') {
+ $file{'/usr/local/epocemx/epocsdk/include/libc/sys/errno.h'} = 1;
+ } elsif ($Config{archname} eq 'arm-riscos') {
+ # Watch out for cross compiling for RISC OS
+ my $dep = `echo "#include <errno.h>" | gcc -E -M -`;
+ if ($dep =~ /(\S+errno\.h)/) {
+ $file{$1} = 1;
+ }
+ } elsif ($^O eq 'linux' &&
+ $Config{gccversion} ne '' &&
+ $Config{gccversion} !~ /intel/i
+ # might be using, say, Intel's icc
+ ) {
# Some Linuxes have weird errno.hs which generate
# no #file or #line directives
- $file{'/usr/include/errno.h'} = 1;
+ my $linux_errno_h = -e '/usr/include/errno.h' ?
+ '/usr/include/errno.h' : '/usr/local/include/errno.h';
+ $file{$linux_errno_h} = 1;
} elsif ($^O eq 'MacOS') {
# note that we are only getting the GUSI errno's here ...
# we might miss out on compiler-specific ones
$file{"$ENV{GUSI}include:sys:errno.h"} = 1;
+ } elsif ($^O eq 'beos' || $^O eq 'haiku') {
+ # hidden in a special place
+ $file{'/boot/develop/headers/posix/errno.h'} = 1;
+
+ } elsif ($^O eq 'vos') {
+ # avoid problem where cpp returns non-POSIX pathnames
+ $file{'/system/include_library/errno.h'} = 1;
+ } elsif ($IsSymbian) {
+ my $SDK = $ENV{SDK};
+ $SDK =~ s!\\!/!g;
+ $file{"$SDK/epoc32/include/libc/sys/errno.h"} = 1;
} else {
open(CPPI,"> errno.c") or
die "Cannot open errno.c";
if ($^O eq 'NetWare') {
- print CPPI "#include <nwerrno.h>\n";
+ print CPPI "#include <nwerrno.h>\n";
} else {
- print CPPI "#include <errno.h>\n";
+ print CPPI "#include <errno.h>\n";
+ if ($IsMSWin32) {
+ print CPPI "#define _WINSOCKAPI_\n"; # don't drag in everything
+ print CPPI "#include <winsock.h>\n";
+ }
}
close(CPPI);
# invoke CPP and read the output
- if ($^O eq 'MSWin32' || $^O eq 'NetWare') {
+ if ($IsMSWin32 || $^O eq 'NetWare') {
open(CPPO,"$Config{cpprun} $Config{cppflags} errno.c |") or
die "Cannot run '$Config{cpprun} $Config{cppflags} errno.c'";
} else {
}
my $pat;
- if (($^O eq 'MSWin32' || $^O eq 'NetWare') and $Config{cc} =~ /^bcc/i) {
+ if (($IsMSWin32 || $^O eq 'NetWare') and $Config{cc} =~ /^bcc/i) {
$pat = '^/\*\s+(.+)\s+\d+\s*:\s+\*/';
}
else {
$pat = '^#\s*(?:line)?\s*\d+\s+"([^"]+)"';
}
while(<CPPO>) {
- if ($^O eq 'os2' or $^O eq 'MSWin32' or $^O eq 'NetWare') {
+ if ($^O eq 'os2' or $IsMSWin32 or $^O eq 'NetWare') {
if (/$pat/o) {
my $f = $1;
$f =~ s,\\\\,/,g;
die "Cannot open errno.c";
if ($^O eq 'NetWare') {
- print CPPI "#include <nwerrno.h>\n";
- } else {
- print CPPI "#include <errno.h>\n";
+ print CPPI "#include <nwerrno.h>\n";
+ }
+ else {
+ print CPPI "#include <errno.h>\n";
+ }
+ if ($IsMSWin32) {
+ print CPPI "#include <winsock.h>\n";
+ foreach $err (keys %wsa) {
+ print CPPI "#ifndef $err\n";
+ print CPPI "#define $err WSA$err\n";
+ print CPPI "#endif\n";
+ $err{$err} = 1;
}
-
+ }
+
foreach $err (keys %err) {
print CPPI '"',$err,'" [[',$err,']]',"\n";
}
close(CPPI);
- unless ($^O eq 'MacOS') { # trust what we have
+ unless ($^O eq 'MacOS' || $^O eq 'beos') { # trust what we have / get later
# invoke CPP and read the output
if ($^O eq 'VMS') {
$cpp =~ s/sys\$input//i;
open(CPPO,"$cpp errno.c |") or
die "Cannot exec $Config{cppstdin}";
- } elsif ($^O eq 'MSWin32' || $^O eq 'NetWare') {
+ } elsif ($IsMSWin32 || $^O eq 'NetWare') {
open(CPPO,"$Config{cpprun} $Config{cppflags} errno.c |") or
die "Cannot run '$Config{cpprun} $Config{cppflags} errno.c'";
- } else {
+ } elsif ($IsSymbian) {
+ my $cpp = "gcc -E -I$ENV{SDK}\\epoc32\\include\\libc -";
+ open(CPPO,"$cpp < errno.c |")
+ or die "Cannot exec $cpp";
+ } else {
my $cpp = default_cpp();
open(CPPO,"$cpp < errno.c |")
or die "Cannot exec $cpp";
my($name,$expr);
next unless ($name, $expr) = /"(.*?)"\s*\[\s*\[\s*(.*?)\s*\]\s*\]/;
next if $name eq $expr;
+ $expr =~ s/\(?\([a-z_]\w*\)([^\)]*)\)?/$1/i; # ((type)0xcafebabe) at alia
+ $expr =~ s/((?:0x)?[0-9a-fA-F]+)[LU]+\b/$1/g; # 2147483647L et alia
+ next if $expr =~ m/^[a-zA-Z]+$/; # skip some Win32 functions
+ if($expr =~ m/^0[xX]/) {
+ $err{$name} = hex $expr;
+ }
+ else {
$err{$name} = eval $expr;
}
+ delete $err{$name} unless defined $err{$name};
+ }
close(CPPO);
}
+ # Many of the E constants (including ENOENT, which is being
+ # used in the Perl test suite a lot), are available only as
+ # enums in BeOS, so compiling and executing some code is about
+ # only way to find out what the numeric Evalues are. In fact above, we
+ # didn't even bother to get the values of the ones that have numeric
+ # values, since we can get all of them here, anyway.
+
+ if ($^O eq 'beos') {
+ if (open(C, ">errno.c")) {
+ my @allerrs = keys %err;
+ print C <<EOF;
+#include <errno.h>
+#include <stdio.h>
+int main() {
+EOF
+ for (@allerrs) {
+ print C qq[printf("$_ %d\n", $_);]
+ }
+ print C "}\n";
+ close C;
+ system("cc -o errno errno.c");
+ unlink("errno.c");
+ if (open(C, "./errno|")) {
+ while (<C>) {
+ if (/^(\w+) (-?\d+)$/) { $err{$1} = $2 }
+ }
+ close(C);
+ } else {
+ die "failed to execute ./errno: $!\n";
+ }
+ unlink("errno");
+ } else {
+ die "failed to create errno.c: $!\n";
+ }
+ }
+
# Write Errno.pm
print <<"EDQ";
#
package Errno;
-our (\@EXPORT_OK,\%EXPORT_TAGS,\@ISA,\$VERSION,\%errno,\$AUTOLOAD);
+our (\@ISA,\$VERSION);
use Exporter ();
use Config;
use strict;
die "Errno architecture ($Config{'archname'}-$Config{'osvers'}) does not match executable architecture (\$Config{'archname'}-\$Config{'osvers'})";
\$VERSION = "$VERSION";
+\$VERSION = eval \$VERSION;
\@ISA = qw(Exporter);
+my %err;
+
+BEGIN {
+ %err = (
EDQ
- my $len = 0;
my @err = sort { $err{$a} <=> $err{$b} } keys %err;
- map { $len = length if length > $len } @err;
- my $j = "\@EXPORT_OK = qw(" . join(" ",keys %err) . ");\n";
- $j =~ s/(.{50,70})\s/$1\n\t/g;
- print $j,"\n";
+ foreach $err (@err) {
+ print "\t$err => $err{$err},\n";
+ }
print <<'ESQ';
+ );
+ # Generate proxy constant subroutines for all the values.
+ # We assume at this point that our symbol table is empty.
+ # Doing this before defining @EXPORT_OK etc means that even if a platform is
+ # crazy enough to define EXPORT_OK as an error constant, everything will
+ # still work, because the parser will upgrade the PCS to a real typeglob.
+ # We rely on the subroutine definitions below to update the internal caches.
+ # Don't use %each, as we don't want a copy of the value.
+ foreach my $name (keys %err) {
+ $Errno::{$name} = \$err{$name};
+ }
+}
+
+our (@EXPORT_OK, %EXPORT_TAGS);
+
+@EXPORT_OK = keys %err;
+
%EXPORT_TAGS = (
POSIX => [qw(
ESQ
$k =~ s/(.{50,70})\s/$1\n\t/g;
print "\t",$k,"\n )]\n);\n\n";
- foreach $err (@err) {
- printf "sub %s () { %d }\n",,$err,$err{$err};
- }
-
print <<'ESQ';
-
-sub TIEHASH { bless [] }
+sub TIEHASH { bless \%err }
sub FETCH {
- my ($self, $errname) = @_;
- my $proto = prototype("Errno::$errname");
- my $errno = "";
- if (defined($proto) && $proto eq "") {
- no strict 'refs';
- $errno = &$errname;
- $errno = 0 unless $! == $errno;
- }
- return $errno;
+ my (undef, $errname) = @_;
+ return "" unless exists $err{$errname};
+ my $errno = $err{$errname};
+ return $errno == $! ? $errno : 0;
}
sub STORE {
*DELETE = \&STORE;
sub NEXTKEY {
- my($k,$v);
- while(($k,$v) = each %Errno::) {
- my $proto = prototype("Errno::$k");
- last if (defined($proto) && $proto eq "");
- }
- $k
+ each %err;
}
sub FIRSTKEY {
- my $s = scalar keys %Errno::; # initialize iterator
- goto &NEXTKEY;
+ my $s = scalar keys %err; # initialize iterator
+ each %err;
}
sub EXISTS {
- my ($self, $errname) = @_;
- my $proto = prototype($errname);
- defined($proto) && $proto eq "";
+ my (undef, $errname) = @_;
+ exists $err{$errname};
}
-tie %!, __PACKAGE__;
+tie %!, __PACKAGE__; # Returns an object, objects are true.
-1;
__END__
=head1 NAME
https://perl5.git.perl.org / perl5.git / blobdiff