# must be linked
#
# Output:
-# PerlShr_Attr.Opt - linker options file which speficies that global vars
+# PerlShr_Attr.Opt - linker options file which specifies that global vars
# be placed in NOSHR,WRT psects. Use when linking any object files
# against PerlShr.Exe, since cc places global vars in SHR,WRT psects
# by default.
#
# Author: Charles Bailey bailey@newman.upenn.edu
+use strict;
require 5.000;
-$debug = $ENV{'GEN_SHRFLS_DEBUG'};
+my $debug = $ENV{'GEN_SHRFLS_DEBUG'};
-print "gen_shrfls.pl Rev. 18-Dec-2003\n" if $debug;
+print "gen_shrfls.pl Rev. 30-Sep-2010\n" if $debug;
if ($ARGV[0] eq '-f') {
open(INP,$ARGV[1]) or die "Can't read input file $ARGV[1]: $!\n";
print "Read input data | ",join(' | ',@ARGV)," |\n" if $debug > 1;
}
-$cc_cmd = shift @ARGV;
+my $cc_cmd = shift @ARGV;
+my $cpp_file;
# Someday, we'll have $GetSyI built into perl . . .
-$isvax = `\$ Write Sys\$Output \(F\$GetSyI(\"HW_MODEL\") .LE. 1024 .AND. F\$GetSyI(\"HW_MODEL\") .GT. 0\)`;
+my $isvax = `\$ Write Sys\$Output \(F\$GetSyI(\"HW_MODEL\") .LE. 1024 .AND. F\$GetSyI(\"HW_MODEL\") .GT. 0\)`;
chomp $isvax;
print "\$isvax: \\$isvax\\\n" if $debug;
-$isi64 = `\$ Write Sys\$Output \(F\$GetSyI(\"HW_MODEL\") .GE. 4096)`;
+my $isi64 = `\$ Write Sys\$Output \(F\$GetSyI(\"HW_MODEL\") .GE. 4096)`;
chomp $isi64;
print "\$isi64: \\$isi64\\\n" if $debug;
print "Input \$cc_cmd: \\$cc_cmd\\\n" if $debug;
-$docc = ($cc_cmd !~ /^~~/);
+my $docc = ($cc_cmd !~ /^~~/);
print "\$docc = $docc\n" if $debug;
+my ( $use_threads, $use_mymalloc, $care_about_case, $shorten_symbols,
+ $debugging_enabled, $hide_mymalloc, $isgcc, $use_perlio, $dir )
+ = ( 0, 0, 0, 0, 0, 0, 0, 0 );
+
if ($docc) {
if (-f 'perl.h') { $dir = '[]'; }
elsif (-f '[-]perl.h') { $dir = '[-]'; }
else { die "$0: Can't find perl.h\n"; }
- $use_threads = $use_mymalloc = $case_about_case = $debugging_enabled = 0;
- $hide_mymalloc = $isgcc = $use_perlio = 0;
-
# Go see what is enabled in config.sh
- $config = $dir . "config.sh";
- open CONFIG, "< $config";
+ my $config = $dir . "config.sh";
+ open CONFIG, '<', $config;
while(<CONFIG>) {
$use_threads++ if /usethreads='(define|yes|true|t|y|1)'/i;
$use_mymalloc++ if /usemymalloc='(define|yes|true|t|y|1)'/i;
$care_about_case++ if /d_vms_case_sensitive_symbols='(define|yes|true|t|y|1)'/i;
+ $shorten_symbols++ if /d_vms_shorten_long_symbols='(define|yes|true|t|y|1)'/i;
$debugging_enabled++ if /usedebugging_perl='(define|yes|true|t|y|1)'/i;
$hide_mymalloc++ if /embedmymalloc='(define|yes|true|t|y|1)'/i;
$isgcc++ if /gccversion='[^']/;
close CONFIG;
# put quotes back onto defines - they were removed by DCL on the way in
- if (($prefix,$defines,$suffix) =
+ if (my ($prefix,$defines,$suffix) =
($cc_cmd =~ m#(.*)/Define=(.*?)([/\s].*)#i)) {
$defines =~ s/^\((.*)\)$/$1/;
$debugging_enabled ||= $defines =~ /\bDEBUGGING\b/;
- @defines = split(/,/,$defines);
+ my @defines = split(/,/,$defines);
$cc_cmd = "$prefix/Define=(" . join(',',grep($_ = "\"$_\"",@defines))
. ')' . $suffix;
}
}
else {
- ($junk,$junk,$cpp_file,$cc_cmd) = split(/~~/,$cc_cmd,4);
+ (undef,undef,$cpp_file,$cc_cmd) = split(/~~/,$cc_cmd,4);
$isgcc = $cc_cmd =~ /case_hack/i
or 0; # for nice debug output
$debugging_enabled = $cc_cmd =~ /\bdebugging\b/i;
print "Not running cc, preprocesor output in \\$cpp_file\\\n" if $debug;
}
-$objsuffix = shift @ARGV;
+my $objsuffix = shift @ARGV;
print "\$objsuffix: \\$objsuffix\\\n" if $debug;
-$dbgprefix = shift @ARGV;
+my $dbgprefix = shift @ARGV;
print "\$dbgprefix: \\$dbgprefix\\\n" if $debug;
-$olbsuffix = shift @ARGV;
+my $olbsuffix = shift @ARGV;
print "\$olbsuffix: \\$olbsuffix\\\n" if $debug;
-$libperl = "${dbgprefix}libperl$olbsuffix";
-$extnames = shift @ARGV;
+my $libperl = "${dbgprefix}libperl$olbsuffix";
+my $extnames = shift @ARGV;
print "\$extnames: \\$extnames\\\n" if $debug;
-$rtlopt = shift @ARGV;
+my $rtlopt = shift @ARGV;
print "\$rtlopt: \\$rtlopt\\\n" if $debug;
+my (%vars, %cvars, %fcns);
+
+# These are symbols that we should not export. They may merely
+# look like exportable symbols but aren't, or they may be declared
+# as exportable symbols but there is no function implementing them
+# (possibly due to an alias).
+
+my %symbols_to_exclude = (
+ '__attribute__format__' => 1,
+ 'main' => 1,
+ 'Perl_pp_avalues' => 1,
+ 'Perl_pp_reach' => 1,
+ 'Perl_pp_rvalues' => 1,
+ 'Perl_pp_say' => 1,
+ 'Perl_pp_transr' => 1,
+ 'sizeof' => 1,
+);
+
sub scan_var {
my($line) = @_;
my($const) = $line =~ /^EXTCONST/;
}
sub scan_func {
- my @lines = split /;/, @_[0];
+ my @lines = split /;/, $_[0];
for my $line (@lines) {
print "\tchecking for global routine\n" if $debug > 1;
$line =~ s/\b(IV|Off_t|Size_t|SSize_t|void|int)\b//i;
if ( $line =~ /(\w+)\s*\(/ ) {
print "\troutine name is \\$1\\\n" if $debug > 1;
- if ($1 eq 'main' || $1 eq 'perl_init_ext' || $1 eq '__attribute__format__'
- || $1 eq 'sizeof' || (($1 eq 'Perl_stashpv_hvname_match') && ! $use_threads)
- || $1 eq 'Perl_pp_avalues' || $1 eq 'Perl_pp_say') {
+ if (exists($symbols_to_exclude{$1})
+ || ($1 eq 'Perl_stashpv_hvname_match' && ! $use_threads)) {
print "\tskipped\n" if $debug > 1;
}
else { $fcns{$1}++ }
$fcns{'Perl_mfree'}++;
}
-$used_expectation_enum = $used_opcode_enum = 0; # avoid warnings
+my ($used_expectation_enum, $used_opcode_enum) = (0, 0); # avoid warnings
if ($docc) {
1 while unlink 'perlincludes.tmp';
END { 1 while unlink 'perlincludes.tmp'; } # and clean up after
- open(PERLINC, '>perlincludes.tmp') or die "Couldn't open 'perlincludes.tmp' $!";
+ open(PERLINC, '>', 'perlincludes.tmp') or die "Couldn't open 'perlincludes.tmp' $!";
print PERLINC qq/#include "${dir}perl.h"\n/;
print PERLINC qq/#include "${dir}perlapi.h"\n/;
print PERLINC qq/#include "${dir}regcomp.h"\n/;
close PERLINC;
- $preprocess_list = 'perlincludes.tmp';
+ my $preprocess_list = 'perlincludes.tmp';
open(CPP,"${cc_cmd}/NoObj/PreProc=Sys\$Output $preprocess_list|")
or die "$0: Can't preprocess $preprocess_list: $!\n";
else {
open(CPP,"$cpp_file") or die "$0: Can't read preprocessed file $cpp_file: $!\n";
}
-%checkh = map { $_,1 } qw( bytecode byterun intrpvar perlapi perlio perliol
+my %checkh = map { $_,1 } qw( bytecode byterun intrpvar perlapi perlio perliol
perlvars proto regcomp thrdvar thread );
-$ckfunc = 0;
+my $ckfunc = 0;
LINE: while (<CPP>) {
while (/^#.*vmsish\.h/i .. /^#.*perl\.h/i) {
while (/__VMS_PROTOTYPES__/i .. /__VMS_SEPYTOTORP__/i) {
last LINE unless defined($_ = <CPP>);
}
# Check for transition to new header file
+ my $scanname;
if (/^# \d+ "(\S+)"/) {
my $spec = $1;
# Pull name from library module or header filespec
next if /^#/;
s/\s+#.*\n//;
next if /^\s*$/;
- ($key,$array) = split('=',$_);
+ my ($key,$array) = split('=',$_);
if ($array eq 'vars') { $key = "PL_$key"; }
else { $key = "Perl_$key"; }
print "Adding $key to \%$array list\n" if $debug > 1;
print "Adding boot_$pkgname to \%fcns (for extension $_)\n" if $debug;
}
+# For symbols over 31 characters, export the shortened name.
+# TODO: Make this general purpose so we can predict the shortened name the
+# compiler will generate for any symbol over 31 characters in length. The
+# docs to CC/NAMES=SHORTENED describe the CRC used to shorten the name, but
+# don't describe its use fully enough to actually mimic what the compiler
+# does.
+
+if ($shorten_symbols) {
+ if (exists $fcns{'Perl_ck_entersub_args_proto_or_list'}) {
+ delete $fcns{'Perl_ck_entersub_args_proto_or_list'};
+ if ($care_about_case) {
+ $fcns{'Perl_ck_entersub_args_p11c2bjj$'}++;
+ }
+ else {
+ $fcns{'PERL_CK_ENTERSUB_ARGS_P3IAT616$'}++;
+ }
+ }
+}
+
# Eventually, we'll check against existing copies here, so we can add new
# symbols to an existing options file in an upwardly-compatible manner.
-$marord++;
-open(OPTBLD,">${dir}${dbgprefix}perlshr_bld.opt")
+my $marord = 1;
+open(OPTBLD,'>', "${dir}${dbgprefix}perlshr_bld.opt")
or die "$0: Can't write to ${dir}${dbgprefix}perlshr_bld.opt: $!\n";
if ($isvax) {
- open(MAR,">${dir}perlshr_gbl${marord}.mar")
+ open(MAR, '>', "${dir}perlshr_gbl${marord}.mar")
or die "$0: Can't write to ${dir}perlshr_gbl${marord}.mar: $!\n";
print MAR "\t.title perlshr_gbl$marord\n";
}
}
}
print OPTBLD "case_sensitive=yes\n" if $care_about_case;
-foreach $var (sort (keys %vars,keys %cvars)) {
+my $count = 0;
+foreach my $var (sort (keys %vars,keys %cvars)) {
if ($isvax) { print OPTBLD "UNIVERSAL=$var\n"; }
else { print OPTBLD "SYMBOL_VECTOR=($var=DATA)\n"; }
# This hack brought to you by the lack of a globaldef in gcc.
print MAR "\t.end\n";
close MAR;
$marord++;
- open(MAR,">${dir}perlshr_gbl${marord}.mar")
+ open(MAR, '>', "${dir}perlshr_gbl${marord}.mar")
or die "$0: Can't write to ${dir}perlshr_gbl${marord}.mar: $!\n";
print MAR "\t.title perlshr_gbl$marord\n";
$count = 0;
}
print MAR "\t.psect \$transfer_vec,pic,rd,nowrt,exe,shr\n" if ($isvax);
-foreach $func (sort keys %fcns) {
+foreach my $func (sort keys %fcns) {
if ($isvax) {
print MAR "\t.transfer $func\n";
print MAR "\t.mask $func\n";
close MAR;
}
-open(OPTATTR,">${dir}perlshr_attr.opt")
+open(OPTATTR, '>', "${dir}perlshr_attr.opt")
or die "$0: Can't write to ${dir}perlshr_attr.opt: $!\n";
if ($isgcc) {
- foreach $var (sort keys %cvars) {
+ foreach my $var (sort keys %cvars) {
print OPTATTR "PSECT_ATTR=${var},PIC,OVR,RD,NOEXE,NOWRT,SHR\n";
}
- foreach $var (sort keys %vars) {
+ foreach my $var (sort keys %vars) {
print OPTATTR "PSECT_ATTR=${var},PIC,OVR,RD,NOEXE,WRT,NOSHR\n";
}
}
}
close OPTATTR;
-$incstr = 'PERL,GLOBALS';
+my $incstr = 'PERL,GLOBALS';
+my (@symfiles, $drvrname);
if ($isvax) {
$drvrname = "Compile_shrmars.tmp_".time;
- open (DRVR,">$drvrname") or die "$0: Can't write to $drvrname: $!\n";
+ open (DRVR,'>', $drvrname) or die "$0: Can't write to $drvrname: $!\n";
print DRVR "\$ Set NoOn\n";
print DRVR "\$ Delete/NoLog/NoConfirm $drvrname;\n";
print DRVR "\$ old_proc_vfy = F\$Environment(\"VERIFY_PROCEDURE\")\n";
# Build up a major ID. Since it can only be 8 bits, we encode the version
# number in the top four bits and use the bottom four for build options
# that'll cause incompatibilities
- ($ver, $sub) = $] =~ /\.(\d\d\d)(\d\d)/;
+ my ($ver, $sub) = $] =~ /\.(\d\d\d)(\d\d)/;
$ver += 0; $sub += 0;
- $gsmatch = ($sub >= 50) ? "equal" : "lequal"; # Force an equal match for
+ my $gsmatch = ($sub >= 50) ? "equal" : "lequal"; # Force an equal match for
# dev, but be more forgiving
# for releases
https://perl5.git.perl.org / perl5.git / blobdiff