# Create global symbol declarations, transfer vector, and
# linker options files for PerlShr.
#
+# Processes the output of makedef.pl.
+#
# Input:
-# $cflags - command line qualifiers passed to cc when preprocesing perl.h
-# Note: A rather simple-minded attempt is made to restore quotes to
-# a /Define clause - use with care.
+# $cc_cmd - compiler command
# $objsuffix - file type (including '.') used for object files.
# $libperl - Perl object library.
# $extnames - package names for static extensions (used to generate
# must be linked
#
# Output:
-# PerlShr_Attr.Opt - linker options file which speficies that global vars
+# PerlShr_Attr.Opt - linker options file which specifies that global vars
# be placed in NOSHR,WRT psects. Use when linking any object files
# against PerlShr.Exe, since cc places global vars in SHR,WRT psects
# by default.
#
# Author: Charles Bailey bailey@newman.upenn.edu
+use strict;
require 5.000;
-$debug = $ENV{'GEN_SHRFLS_DEBUG'};
+my $debug = $ENV{'GEN_SHRFLS_DEBUG'};
-print "gen_shrfls.pl Rev. 14-Dec-1997\n" if $debug;
+print "gen_shrfls.pl Rev. 8-Jul-2011\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; # no longer used to run the preprocessor
# Someday, we'll have $GetSyI built into perl . . .
-$isvax = `\$ Write Sys\$Output F\$GetSyI(\"HW_MODEL\")` <= 1024;
+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;
+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 $debug;
-if ($docc) {
- if (-f 'perl.h') { $dir = '[]'; }
- elsif (-f '[-]perl.h') { $dir = '[-]'; }
- else { die "$0: Can't find perl.h\n"; }
-
- # Go see if debugging is enabled in config.h
- $config = $dir . "config.h";
- open CONFIG, "< $config";
- while(<CONFIG>) {
- $debugging_enabled++ if /define\s+DEBUGGING/;
- $use_mymalloc++ if /define\s+MYMALLOC/;
- $hide_mymalloc++ if /define\s+EMBEDMYMALLOC/;
- $use_threads++ if /define\s+USE_THREADS/;
- }
+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 (-f 'perl.h') { $dir = '[]'; }
+elsif (-f '[-]perl.h') { $dir = '[-]'; }
+else { die "$0: Can't find perl.h\n"; }
+
+# Go see what is enabled in config.sh
+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='[^']/;
+ $use_perlio++ if /useperlio='(define|yes|true|t|y|1)'/i;
+}
+close CONFIG;
- # put quotes back onto defines - they were removed by DCL on the way in
- if (($prefix,$defines,$suffix) =
+# put quotes back onto defines - they were removed by DCL on the way in
+if (my ($prefix,$defines,$suffix) =
($cc_cmd =~ m#(.*)/Define=(.*?)([/\s].*)#i)) {
- $defines =~ s/^\((.*)\)$/$1/;
- $debugging_enabled ||= $defines =~ /\bDEBUGGING\b/;
- @defines = split(/,/,$defines);
- $cc_cmd = "$prefix/Define=(" . join(',',grep($_ = "\"$_\"",@defines))
+ $defines =~ s/^\((.*)\)$/$1/;
+ $debugging_enabled ||= $defines =~ /\bDEBUGGING\b/;
+ my @defines = split(/,/,$defines);
+ $cc_cmd = "$prefix/Define=(" . join(',',grep($_ = "\"$_\"",@defines))
. ')' . $suffix;
- }
- print "Filtered \$cc_cmd: \\$cc_cmd\\\n" if $debug;
+}
+print "Filtered \$cc_cmd: \\$cc_cmd\\\n" if $debug;
- # check for gcc - if present, we'll need to use MACRO hack to
- # define global symbols for shared variables
- $isvaxc = 0;
- $isgcc = `$cc_cmd _nla0:/Version` =~ /GNU/
- or 0; # make debug output nice
- $isvaxc = (!$isgcc && $isvax &&
- # Check exit status too, in case message is shut off
- (`$cc_cmd /prefix=all _nla0:` =~ /IVQUAL/ || $? == 0x38240))
- or 0; # again, make debug output nice
- print "\$isgcc: $isgcc\n" if $debug;
- print "\$isvaxc: $isvaxc\n" if $debug;
- print "\$debugging_enabled: $debugging_enabled\n" if $debug;
+# check for gcc - if present, we'll need to use MACRO hack to
+# define global symbols for shared variables
-}
-else {
- ($junk,$junk,$cpp_file,$cc_cmd) = split(/~~/,$cc_cmd,4);
- $isgcc = $cc_cmd =~ /case_hack/i
- or 0; # for nice debug output
- $isvaxc = (!$isgcc && $cc_cmd !~ /standard=/i)
- or 0; # again, for nice debug output
- $debugging_enabled = $cc_cmd =~ /\bdebugging\b/i;
- print "\$isgcc: \\$isgcc\\\n" if $debug;
- print "\$isvaxc: \\$isvaxc\\\n" if $debug;
- print "\$debugging_enabled: \\$debugging_enabled\\\n" if $debug;
- print "Not running cc, preprocesor output in \\$cpp_file\\\n" if $debug;
-}
+print "\$isgcc: $isgcc\n" if $debug;
+print "\$debugging_enabled: $debugging_enabled\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 $debug;
-# This part gets tricky. VAXC creates global symbols for each of the
-# constants in an enum if that enum is ever used as the data type of a
-# global[dr]ef. We have to detect enums which are used in this way, so we
-# can set up the constants as universal symbols, since anything which
-# #includes perl.h will want to resolve these global symbols.
-# We're using a weak test here - we basically know that the only enums
-# we need to handle now are the big one in opcode.h, and the
-# "typedef enum { ... } expectation" in perl.h, so we hard code
-# appropriate tests below. Since we can't know in general whether a given
-# enum will be used elsewhere in a globaldef, it's hard to decide a
-# priori whether its constants need to be treated as global symbols.
-sub scan_enum {
- my($line) = @_;
-
- return unless $isvaxc;
-
- return unless /^\s+(OP|X)/; # we only want opcode and expectation enums
- print "\tchecking for enum constant\n" if $debug > 1;
- $line =~ s#/\*.+##;
- $line =~ s/,?\s*\n?$//;
- print "\tfiltered to \\$line\\\n" if $debug > 1;
- if ($line =~ /(\w+)$/) {
- print "\tconstant name is \\$1\\\n" if $debug > 1;
- $enums{$1}++;
- }
-}
-
-sub scan_var {
- my($line) = @_;
- my($const) = $line =~ /^EXTCONST/;
-
- print "\tchecking for global variable\n" if $debug > 1;
- $line =~ s/\s*EXT/EXT/;
- $line =~ s/INIT\s*\(.*\)//;
- $line =~ s/\[.*//;
- $line =~ s/=.*//;
- $line =~ s/\W*;?\s*$//;
- $line =~ s/\W*\)\s*\(.*$//; # closing paren for args stripped in previous stmt
- print "\tfiltered to \\$line\\\n" if $debug > 1;
- if ($line =~ /(\w+)$/) {
- print "\tvar name is \\$1\\" . ($const ? ' (const)' : '') . "\n" if $debug > 1;
- if ($const) { $cvars{$1}++; }
- else { $vars{$1}++; }
- }
- if ($isvaxc) {
- my($type) = $line =~ /^\s*EXT\w*\s+(\w+)/;
- print "\tchecking for use of enum (type is \"$type\")\n" if $debug > 2;
- if ($type eq 'expectation') {
- $used_expectation_enum++;
- print "\tsaw global use of enum \"expectation\"\n" if $debug > 1;
- }
- if ($type eq 'opcode') {
- $used_opcode_enum++;
- print "\tsaw global use of enum \"opcode\"\n" if $debug > 1;
- }
- }
-}
-
-sub scan_func {
- my($line) = @_;
-
- print "\tchecking for global routine\n" if $debug > 1;
- if ( $line =~ /(\w+)\s*\(/ ) {
- print "\troutine name is \\$1\\\n" if $debug > 1;
- if ($1 eq 'main' || $1 eq 'perl_init_ext') {
- print "\tskipped\n" if $debug > 1;
- }
- else { $fcns{uc($1)}++ }
- }
-}
+my (%vars, %fcns);
-# Go add some right up front if we need 'em
-if ($use_mymalloc) {
- $fcns{uc('Perl_malloc')}++;
- $fcns{uc('Perl_calloc')}++;
- $fcns{uc('Perl_realloc')}++;
- $fcns{uc('Perl_mfree')}++;
-}
+open my $makedefs, '<', $dir . 'makedef.lis' or die "Unable to open makedef.lis: $!";
-$used_expectation_enum = $used_opcode_enum = 0; # avoid warnings
-if ($docc) {
- open(CPP,"${cc_cmd}/NoObj/PreProc=Sys\$Output ${dir}perl.h|")
- or die "$0: Can't preprocess ${dir}perl.h: $!\n";
-}
-else {
- open(CPP,"$cpp_file") or die "$0: Can't read preprocessed file $cpp_file: $!\n";
-}
-%checkh = map { $_,1 } qw( thread bytecode byterun proto );
-$ckfunc = 0;
-LINE: while (<CPP>) {
- while (/^#.*vmsish\.h/i .. /^#.*perl\.h/i) {
- while (/__VMS_PROTOTYPES__/i .. /__VMS_SEPYTOTORP__/i) {
- print "vms_proto>> $_" if $debug > 2;
- if (/^\s*EXT/) { &scan_var($_); }
- else { &scan_func($_); }
- last LINE unless defined($_ = <CPP>);
- }
- print "vmsish.h>> $_" if $debug > 2;
- if (/^\s*EXT/) { &scan_var($_); }
- last LINE unless defined($_ = <CPP>);
- }
- while (/^#.*opcode\.h/i .. /^#.*perl\.h/i) {
- print "opcode.h>> $_" if $debug > 2;
- if (/^OP \*\s/) { &scan_func($_); }
- if (/^\s*EXT/) { &scan_var($_); }
- if (/^\s+OP_/) { &scan_enum($_); }
- last LINE unless defined($_ = <CPP>);
- }
- while (/^typedef enum/ .. /^\s*\}/) {
- print "global enum>> $_" if $debug > 2;
- &scan_enum($_);
- last LINE unless defined($_ = <CPP>);
- }
- # Check for transition to new header file
- if (/^# \d+ "(\S+)"/) {
- my $spec = $1;
- # Pull name from library module or header filespec
- $spec =~ /^(\w+)$/ or $spec =~ /(\w+)\.h/i;
- my $name = lc $1;
- $ckfunc = exists $checkh{$name} ? 1 : 0;
- $scanname = $name if $ckfunc;
- print "Header file transition: ckfunc = $ckfunc for $name.h\n" if $debug > 1;
- }
- if ($ckfunc) {
- print "$scanname>> $_" if $debug > 2;
- if (/\s*^EXT/) { &scan_var($_); }
- else { &scan_func($_); }
+while (my $line = <$makedefs>) {
+ chomp $line;
+ # makedef.pl loses distinction between vars and funcs, so
+ # use the start of the name to guess and add specific
+ # exceptions when we know about them.
+ if ($line =~ m/^PL_/
+ || $line eq 'PerlIO_perlio'
+ || $line eq 'PerlIO_pending') {
+ $vars{$line}++;
}
else {
- print $_ if $debug > 3 && ($debug > 5 || length($_));
- if (/^\s*EXT/) { &scan_var($_); }
+ $fcns{$line}++;
}
}
-close CPP;
-while (<DATA>) {
- next if /^#/;
- s/\s+#.*\n//;
- next if /^\s*$/;
- ($key,$array) = split('=',$_);
- if ($array eq 'vars') { $key = "PL_$key"; }
- else { $key = "Perl_$key"; }
- print "Adding $key to \%$array list\n" if $debug > 1;
- ${$array}{$key}++;
-}
if ($debugging_enabled and $isgcc) { $vars{'colors'}++ }
foreach (split /\s+/, $extnames) {
my($pkgname) = $_;
print "Adding boot_$pkgname to \%fcns (for extension $_)\n" if $debug;
}
-# If we're using VAXC, fold in the names of the constants for enums
-# we've seen as the type of global vars.
-if ($isvaxc) {
- foreach (keys %enums) {
- if (/^OP/) {
- $vars{$_}++ if $used_opcode_enum;
- next;
+# For symbols over 31 characters, export the shortened name.
+# TODO: Make this general purpose so we can predict the shortened name the
+# compiler will generate for any symbol over 31 characters in length. The
+# docs to CC/NAMES=SHORTENED describe the CRC used to shorten the name, but
+# don't describe its use fully enough to actually mimic what the compiler
+# does.
+
+if ($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) {
+ $fcns{'Perl_ck_entersub_args_p11c2bjj$'}++;
}
- if (/^X/) {
- $vars{$_}++ if $used_expectation_enum;
- next;
+ else {
+ $fcns{'PERL_CK_ENTERSUB_ARGS_P3IAT616$'}++;
}
- print STDERR "Unrecognized enum constant \"$_\" ignored\n";
}
}
# Eventually, we'll check against existing copies here, so we can add new
# symbols to an existing options file in an upwardly-compatible manner.
-$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";
}
unless ($isgcc) {
- print OPTBLD "PSECT_ATTR=\$GLOBAL_RO_VARS,PIC,NOEXE,RD,NOWRT,SHR\n";
- print OPTBLD "PSECT_ATTR=\$GLOBAL_RW_VARS,PIC,NOEXE,RD,WRT,NOSHR\n";
+ if ($isi64) {
+ print OPTBLD "PSECT_ATTR=\$GLOBAL_RO_VARS,NOEXE,RD,NOWRT,SHR\n";
+ print OPTBLD "PSECT_ATTR=\$GLOBAL_RW_VARS,NOEXE,RD,WRT,NOSHR\n";
+ }
+ else {
+ print OPTBLD "PSECT_ATTR=\$GLOBAL_RO_VARS,PIC,NOEXE,RD,NOWRT,SHR\n";
+ print OPTBLD "PSECT_ATTR=\$GLOBAL_RW_VARS,PIC,NOEXE,RD,WRT,NOSHR\n";
+ }
}
-foreach $var (sort (keys %vars,keys %cvars)) {
+print OPTBLD "case_sensitive=yes\n" if $care_about_case;
+my $count = 0;
+foreach my $var (sort (keys %vars)) {
if ($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: $!\n";
-if ($isvaxc) {
- print OPTATTR "PSECT_ATTR=\$CHAR_STRING_CONSTANTS,PIC,SHR,NOEXE,RD,NOWRT\n";
-}
-elsif ($isgcc) {
- foreach $var (sort keys %cvars) {
- print OPTATTR "PSECT_ATTR=${var},PIC,OVR,RD,NOEXE,NOWRT,SHR\n";
- }
- foreach $var (sort keys %vars) {
+if ($isgcc) {
+# TODO -- lost ability to distinguish constant vars from others when
+# we switched to using makedef.pl for input.
+# foreach my $var (sort keys %cvars) {
+# print OPTATTR "PSECT_ATTR=${var},PIC,OVR,RD,NOEXE,NOWRT,SHR\n";
+# }
+ 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)/;
- $gsmatch = ($sub >= 50) ? "equal" : "lequal"; # Force an equal match for
+ my ($ver, $sub) = $] =~ /\.(\d\d\d)(\d\d)/;
+ $ver += 0; $sub += 0;
+ my $gsmatch = ($sub >= 50) ? "equal" : "lequal"; # Force an equal match for
# dev, but be more forgiving
# for releases
__END__
-
-# Oddball cases, so we can keep the perl.h scan above simple
-regkind=vars # declared in regcomp.h
-simple=vars # declared in regcomp.h
-varies=vars # declared in regcomp.h
https://perl5.git.perl.org / perl5.git / blobdiff