[p5sagit/p5-mst-13.2.git] / vms / gen_shrfls.pl

# Create global symbol declarations, transfer vector, and
# linker options files for PerlShr.
#
# 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.
#    $objsuffix - file type (including '.') used for object files.
#    $libperl - Perl object library.
#    $extnames - package names for static extensions (used to generate
#        linker options file entries for boot functions)
#    $rtlopt - name of options file specifying RTLs to which PerlShr.Exe
#        must be linked
#
# Output:
#    PerlShr_Attr.Opt - linker options file which speficies 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.
#    PerlShr_Bld.Opt - declares universal symbols for PerlShr.Exe
#    Perlshr_Gbl*.Mar, Perlshr_Gbl*.Obj (VAX  only) - declares global symbols
#        for global vars (done here because gcc can't globaldef) and creates
#        transfer vectors for routines on a VAX.
#    PerlShr_Gbl.Opt (VAX only) - list of PerlShr_Gbl*.Obj, used for input
#        to the linker when building PerlShr.Exe.
#
# To do:
#   - figure out a good way to collect global vars in one psect, given that
#     we can't use globaldef because of gcc.
#   - then, check for existing files and preserve symbol and transfer vector
#     order for upward compatibility
#   - then, add GSMATCH to options file - but how do we insure that new
#     library has everything old one did
#     (i.e. /Define=DEBUGGING,EMBED,MULTIPLICITY)?
#
# Author: Charles Bailey  bailey@newman.upenn.edu

require 5.000;

$debug = $ENV{'GEN_SHRFLS_DEBUG'};

print "gen_shrfls.pl Rev. 14-Dec-1997\n" if $debug;

if ($ARGV[0] eq '-f') {
  open(INP,$ARGV[1]) or die "Can't read input file $ARGV[1]: $!\n";
  print "Input taken from file $ARGV[1]\n" if $debug;
  @ARGV = ();
  while (<INP>) {
    chomp;
    push(@ARGV,split(/\|/,$_));
  }
  close INP;
  print "Read input data | ",join(' | ',@ARGV)," |\n" if $debug > 1;
}

$cc_cmd = shift @ARGV;

# Someday, we'll have $GetSyI built into perl . . .
$isvax = `\$ Write Sys\$Output F\$GetSyI(\"HW_MODEL\")` <= 1024;
print "\$isvax: \\$isvax\\\n" if $debug;

print "Input \$cc_cmd: \\$cc_cmd\\\n" if $debug;
$docc = ($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 what is enabled in config.sh
  $config = $dir . "config.sh";
  open CONFIG, "< $config";
  while(<CONFIG>) {
    $use_threads++ if /usethreads='define'/;
    $use_mymalloc++ if /usemymalloc='Y'/;
    $care_about_case++ if /d_vms_case_sensitive_symbols='define'/;
    $debugging_enabled++ if /usedebugging_perl='Y'/;
    $hide_mymalloc++ if /embedmymalloc='Y'/;
  }
  close CONFIG;
  
  # put quotes back onto defines - they were removed by DCL on the way in
  if (($prefix,$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)) 
              . ')' . $suffix;
  }
  print "Filtered \$cc_cmd: \\$cc_cmd\\\n" if $debug;

  # check for gcc - if present, we'll need to use MACRO hack to
  # define global symbols for shared variables
  $isgcc = `$cc_cmd _nla0:/Version` =~ /GNU/
           or 0; # make debug output nice
  print "\$isgcc: $isgcc\n" if $debug;
  print "\$debugging_enabled: $debugging_enabled\n" if $debug;

}
else { 
  ($junk,$junk,$cpp_file,$cc_cmd) = split(/~~/,$cc_cmd,4);
  $isgcc = $cc_cmd =~ /case_hack/i
           or 0;  # for nice debug output
  $debugging_enabled = $cc_cmd =~ /\bdebugging\b/i;
  print "\$isgcc: \\$isgcc\\\n" if $debug;
  print "\$debugging_enabled: \\$debugging_enabled\\\n" if $debug;
  print "Not running cc, preprocesor output in \\$cpp_file\\\n" if $debug;
}

$objsuffix = shift @ARGV;
print "\$objsuffix: \\$objsuffix\\\n" if $debug;
$dbgprefix = shift @ARGV;
print "\$dbgprefix: \\$dbgprefix\\\n" if $debug;
$olbsuffix = shift @ARGV;
print "\$olbsuffix: \\$olbsuffix\\\n" if $debug;
$libperl = "${dbgprefix}libperl$olbsuffix";
$extnames = shift @ARGV;
print "\$extnames: \\$extnames\\\n" if $debug;
$rtlopt = shift @ARGV;
print "\$rtlopt: \\$rtlopt\\\n" if $debug;

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}++;  }
  }
}

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{$1}++ }
  }
}

# Go add some right up front if we need 'em
if ($use_mymalloc) {
  $fcns{'Perl_malloc'}++;
  $fcns{'Perl_calloc'}++;
  $fcns{'Perl_realloc'}++;
  $fcns{'Perl_mfree'}++;
}

$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($_); }
    last LINE unless defined($_ = <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($_); }
  }
  else {
    print $_ if $debug > 3 && ($debug > 5 || length($_));
    if (/^\s*EXT/) { &scan_var($_); }
  }
}
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) = $_;
  $pkgname =~ s/::/__/g;
  $fcns{"boot_$pkgname"}++;
  print "Adding boot_$pkgname to \%fcns (for extension $_)\n" if $debug;
}

# 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")
  or die "$0: Can't write to ${dir}${dbgprefix}perlshr_bld.opt: $!\n";
if ($isvax) {
  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";
}
print OPTBLD "case_sensitive=yes\n" if $care_about_case;
foreach $var (sort (keys %vars,keys %cvars)) {
  if ($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.
  if ($isgcc) {
    if ($count++ > 200) {  # max 254 psects/file
      print MAR "\t.end\n";
      close MAR;
      $marord++;
      open(MAR,">${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 ${var},long,pic,ovr,rd,wrt,noexe,noshr\n";
    print MAR "\t${var}::	.blkl 1\n";
  }
}

print MAR "\t.psect \$transfer_vec,pic,rd,nowrt,exe,shr\n" if ($isvax);
foreach $func (sort keys %fcns) {
  if ($isvax) {
    print MAR "\t.transfer $func\n";
    print MAR "\t.mask $func\n";
    print MAR "\tjmp G\^${func}+2\n";
  }
  else { print OPTBLD "SYMBOL_VECTOR=($func=PROCEDURE)\n"; }
}
if ($isvax) {
  print MAR "\t.end\n";
  close MAR;
}

open(OPTATTR,">${dir}perlshr_attr.opt")
  or die "$0: Can't write to ${dir}perlshr_attr.opt: $!\n";
if ($isgcc) {
  foreach $var (sort keys %cvars) {
    print OPTATTR "PSECT_ATTR=${var},PIC,OVR,RD,NOEXE,NOWRT,SHR\n";
  }
  foreach $var (sort keys %vars) {
    print OPTATTR "PSECT_ATTR=${var},PIC,OVR,RD,NOEXE,WRT,NOSHR\n";
  }
}
else {
  print OPTATTR "! No additional linker directives are needed when using DECC\n";
}
close OPTATTR;

$incstr = 'PERL,GLOBALS';
if ($isvax) {
  $drvrname = "Compile_shrmars.tmp_".time;
  open (DRVR,">$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";
  print DRVR "\$ old_img_vfy = F\$Environment(\"VERIFY_IMAGE\")\n";
  print DRVR "\$ MCR $^X -e \"\$ENV{'LIBPERL_RDT'} = (stat('$libperl'))[9]\"\n";
  print DRVR "\$ Set Verify\n";
  print DRVR "\$ If F\$Search(\"$libperl\").eqs.\"\" Then Library/Object/Create $libperl\n";
  do {
    push(@symfiles,"perlshr_gbl$marord");
    print DRVR "\$ Macro/NoDebug/Object=PerlShr_Gbl${marord}$objsuffix PerlShr_Gbl$marord.Mar\n";
    print DRVR "\$ Library/Object/Replace/Log $libperl PerlShr_Gbl${marord}$objsuffix\n";
  } while (--$marord); 
  # We had to have a working miniperl to run this program; it's probably the
  # one we just built.  It depended on LibPerl, which will be changed when
  # the PerlShr_Gbl* modules get inserted, so miniperl will be out of date,
  # and so, therefore, will all of its dependents . . .
  # We touch LibPerl here so it'll be back 'in date', and we won't rebuild
  # miniperl etc., and therefore LibPerl, the next time we invoke MM[KS].
  print DRVR "\$ old_proc_vfy = F\$Verify(old_proc_vfy,old_img_vfy)\n";
  print DRVR "\$ MCR $^X -e \"utime 0, \$ENV{'LIBPERL_RDT'}, '$libperl'\"\n";
  close DRVR;
}

# Initial hack to permit building of compatible shareable images for a
# given version of Perl.
if ($ENV{PERLSHR_USE_GSMATCH}) {
  if ($ENV{PERLSHR_USE_GSMATCH} eq 'INCLUDE_COMPILE_OPTIONS') {
    # 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)/;
    $ver += 0; $sub += 0;
    $gsmatch = ($sub >= 50) ? "equal" : "lequal"; # Force an equal match for
						  # dev, but be more forgiving
						  # for releases

    $ver *=16;
    $ver += 8 if $debugging_enabled;	# If DEBUGGING is set
    $ver += 4 if $use_threads;		# if we're threaded
    $ver += 2 if $use_mymalloc;		# if we're using perl's malloc
    print OPTBLD "GSMATCH=$gsmatch,$ver,$sub\n";
  }
  else {
    my $major = int($] * 1000)                        & 0xFF;  # range 0..255
    my $minor = int(($] * 1000 - $major) * 100 + 0.5) & 0xFF;  # range 0..255
    print OPTBLD "GSMATCH=LEQUAL,$major,$minor\n";
  }
  print OPTBLD 'CLUSTER=$$TRANSFER_VECTOR,,',
               map(",$_$objsuffix",@symfiles), "\n";
}
elsif (@symfiles) { $incstr .= ',' . join(',',@symfiles); }
# Include object modules and RTLs in options file
# Linker wants /Include and /Library on different lines
print OPTBLD "$libperl/Include=($incstr)\n";
print OPTBLD "$libperl/Library\n";
open(RTLOPT,$rtlopt) or die "$0: Can't read options file $rtlopt: $!\n";
while (<RTLOPT>) { print OPTBLD; }
close RTLOPT;
close OPTBLD;

exec "\$ \@$drvrname" if $isvax;


__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
Commit	Line	Data
a0d0e21e	1	# Create global symbol declarations, transfer vector, and
	2	# linker options files for PerlShr.
	3	#
	4	# Input:
	5	# $cflags - command line qualifiers passed to cc when preprocesing perl.h
	6	# Note: A rather simple-minded attempt is made to restore quotes to
	7	# a /Define clause - use with care.
	8	# $objsuffix - file type (including '.') used for object files.
748a9306	9	# $libperl - Perl object library.
	10	# $extnames - package names for static extensions (used to generate
	11	# linker options file entries for boot functions)
	12	# $rtlopt - name of options file specifying RTLs to which PerlShr.Exe
	13	# must be linked
a0d0e21e	14	#
	15	# Output:
	16	# PerlShr_Attr.Opt - linker options file which speficies that global vars
	17	# be placed in NOSHR,WRT psects. Use when linking any object files
	18	# against PerlShr.Exe, since cc places global vars in SHR,WRT psects
	19	# by default.
748a9306	20	# PerlShr_Bld.Opt - declares universal symbols for PerlShr.Exe
a0d0e21e	21	# Perlshr_Gbl.Mar, Perlshr_Gbl.Obj (VAX only) - declares global symbols
	22	# for global vars (done here because gcc can't globaldef) and creates
	23	# transfer vectors for routines on a VAX.
	24	# PerlShr_Gbl.Opt (VAX only) - list of PerlShr_Gbl*.Obj, used for input
	25	# to the linker when building PerlShr.Exe.
	26	#
	27	# To do:
	28	# - figure out a good way to collect global vars in one psect, given that
	29	# we can't use globaldef because of gcc.
	30	# - then, check for existing files and preserve symbol and transfer vector
	31	# order for upward compatibility
	32	# - then, add GSMATCH to options file - but how do we insure that new
	33	# library has everything old one did
	34	# (i.e. /Define=DEBUGGING,EMBED,MULTIPLICITY)?
	35	#
bd3fa61c	36	# Author: Charles Bailey bailey@newman.upenn.edu
a0d0e21e	37
	38	require 5.000;
	39
	40	$debug = $ENV{'GEN_SHRFLS_DEBUG'};
a5f75d66	41
fc1ce8cc	42	print "gen_shrfls.pl Rev. 14-Dec-1997\n" if $debug;
71be2cbc	43
a5f75d66	44	if ($ARGV[0] eq '-f') {
	45	open(INP,$ARGV[1]) or die "Can't read input file $ARGV[1]: $!\n";
	46	print "Input taken from file $ARGV[1]\n" if $debug;
	47	@ARGV = ();
	48	while (<INP>) {
	49	chomp;
	50	push(@ARGV,split(/\\|/,$_));
	51	}
	52	close INP;
	53	print "Read input data \| ",join(' \| ',@ARGV)," \|\n" if $debug > 1;
	54	}
	55
a0d0e21e	56	$cc_cmd = shift @ARGV;
4633a7c4	57
	58	# Someday, we'll have $GetSyI built into perl . . .
	59	$isvax = `\$ Write Sys\$Output F\$GetSyI(\"HW_MODEL\")` <= 1024;
	60	print "\$isvax: \\$isvax\\\n" if $debug;
	61
a0d0e21e	62	print "Input \$cc_cmd: \\$cc_cmd\\\n" if $debug;
4633a7c4	63	$docc = ($cc_cmd !~ /^~~/);
a0d0e21e	64	print "\$docc = $docc\n" if $debug;
	65
	66	if ($docc) {
429a5e67	67	if (-f 'perl.h') { $dir = '[]'; }
	68	elsif (-f '[-]perl.h') { $dir = '[-]'; }
	69	else { die "$0: Can't find perl.h\n"; }
	70
403396f3	71	# Go see what is enabled in config.sh
403396f3	72	$config = $dir . "config.sh";
429a5e67	73	open CONFIG, "< $config";
429a5e67	74	while(<CONFIG>) {
403396f3	75	$use_threads++ if /usethreads='define'/;
	76	$use_mymalloc++ if /usemymalloc='Y'/;
	77	$care_about_case++ if /d_vms_case_sensitive_symbols='define'/;
	78	$debugging_enabled++ if /usedebugging_perl='Y'/;
	79	$hide_mymalloc++ if /embedmymalloc='Y'/;
429a5e67	80	}
403396f3	81	close CONFIG;
429a5e67	82
a0d0e21e	83	# put quotes back onto defines - they were removed by DCL on the way in
	84	if (($prefix,$defines,$suffix) =
	85	($cc_cmd =~ m#(.)/Define=(.?)([/\s].*)#i)) {
	86	$defines =~ s/^\((.*)\)$/$1/;
429a5e67	87	$debugging_enabled \|\|= $defines =~ /\bDEBUGGING\b/;
a0d0e21e	88	@defines = split(/,/,$defines);
	89	$cc_cmd = "$prefix/Define=(" . join(',',grep($_ = "\"$_\"",@defines))
	90	. ')' . $suffix;
	91	}
	92	print "Filtered \$cc_cmd: \\$cc_cmd\\\n" if $debug;
	93
4633a7c4	94	# check for gcc - if present, we'll need to use MACRO hack to
4633a7c4	95	# define global symbols for shared variables
4633a7c4	96	$isgcc = `$cc_cmd _nla0:/Version` =~ /GNU/
4633a7c4	97	or 0; # make debug output nice
4633a7c4	98	print "\$isgcc: $isgcc\n" if $debug;
09b7f37c	99	print "\$debugging_enabled: $debugging_enabled\n" if $debug;
4633a7c4	100
a0d0e21e	101	}
4633a7c4	102	else {
a5f75d66	103	($junk,$junk,$cpp_file,$cc_cmd) = split(/~~/,$cc_cmd,4);
482b294c	104	$isgcc = $cc_cmd =~ /case_hack/i
4633a7c4	105	or 0; # for nice debug output
09b7f37c	106	$debugging_enabled = $cc_cmd =~ /\bdebugging\b/i;
4633a7c4	107	print "\$isgcc: \\$isgcc\\\n" if $debug;
09b7f37c	108	print "\$debugging_enabled: \\$debugging_enabled\\\n" if $debug;
4633a7c4	109	print "Not running cc, preprocesor output in \\$cpp_file\\\n" if $debug;
4633a7c4	110	}
a0d0e21e	111
	112	$objsuffix = shift @ARGV;
	113	print "\$objsuffix: \\$objsuffix\\\n" if $debug;
748a9306	114	$dbgprefix = shift @ARGV;
	115	print "\$dbgprefix: \\$dbgprefix\\\n" if $debug;
	116	$olbsuffix = shift @ARGV;
	117	print "\$olbsuffix: \\$olbsuffix\\\n" if $debug;
	118	$libperl = "${dbgprefix}libperl$olbsuffix";
	119	$extnames = shift @ARGV;
	120	print "\$extnames: \\$extnames\\\n" if $debug;
	121	$rtlopt = shift @ARGV;
	122	print "\$rtlopt: \\$rtlopt\\\n" if $debug;
a0d0e21e	123
a0d0e21e	124	sub scan_var {
a0d0e21e	125	my($line) = @_;
71be2cbc	126	my($const) = $line =~ /^EXTCONST/;
a0d0e21e	127
748a9306	128	print "\tchecking for global variable\n" if $debug > 1;
3e3baf6d	129	$line =~ s/\s*EXT/EXT/;
3e3baf6d	130	$line =~ s/INIT\s\(.\)//;
a0d0e21e	131	$line =~ s/\[.*//;
	132	$line =~ s/=.*//;
	133	$line =~ s/\W;?\s$//;
61bb5906	134	$line =~ s/\W\)\s\(.*$//; # closing paren for args stripped in previous stmt
748a9306	135	print "\tfiltered to \\$line\\\n" if $debug > 1;
a0d0e21e	136	if ($line =~ /(\w+)$/) {
71be2cbc	137	print "\tvar name is \\$1\\" . ($const ? ' (const)' : '') . "\n" if $debug > 1;
	138	if ($const) { $cvars{$1}++; }
	139	else { $vars{$1}++; }
	140	}
a0d0e21e	141	}
	142
	143	sub scan_func {
	144	my($line) = @_;
	145
748a9306	146	print "\tchecking for global routine\n" if $debug > 1;
7f00e737	147	if ( $line =~ /(\w+)\s*\(/ ) {
748a9306	148	print "\troutine name is \\$1\\\n" if $debug > 1;
a0d0e21e	149	if ($1 eq 'main' \|\| $1 eq 'perl_init_ext') {
748a9306	150	print "\tskipped\n" if $debug > 1;
a0d0e21e	151	}
b6837a3b	152	else { $fcns{$1}++ }
a0d0e21e	153	}
	154	}
	155
429a5e67	156	# Go add some right up front if we need 'em
429a5e67	157	if ($use_mymalloc) {
b6837a3b	158	$fcns{'Perl_malloc'}++;
	159	$fcns{'Perl_calloc'}++;
	160	$fcns{'Perl_realloc'}++;
	161	$fcns{'Perl_mfree'}++;
429a5e67	162	}
429a5e67	163
c07a80fd	164	$used_expectation_enum = $used_opcode_enum = 0; # avoid warnings
a0d0e21e	165	if ($docc) {
	166	open(CPP,"${cc_cmd}/NoObj/PreProc=Sys\$Output ${dir}perl.h\|")
	167	or die "$0: Can't preprocess ${dir}perl.h: $!\n";
	168	}
	169	else {
a5f75d66	170	open(CPP,"$cpp_file") or die "$0: Can't read preprocessed file $cpp_file: $!\n";
a0d0e21e	171	}
09b7f37c	172	%checkh = map { $_,1 } qw( thread bytecode byterun proto );
09b7f37c	173	$ckfunc = 0;
a0d0e21e	174	LINE: while (<CPP>) {
	175	while (/^#.vmsish\.h/i .. /^#.perl\.h/i) {
	176	while (/__VMS_PROTOTYPES__/i .. /__VMS_SEPYTOTORP__/i) {
748a9306	177	print "vms_proto>> $_" if $debug > 2;
3e3baf6d	178	if (/^\s*EXT/) { &scan_var($_); }
b9f71c63	179	else { &scan_func($_); }
09b7f37c	180	last LINE unless defined($_ = <CPP>);
a0d0e21e	181	}
748a9306	182	print "vmsish.h>> $_" if $debug > 2;
3e3baf6d	183	if (/^\s*EXT/) { &scan_var($_); }
09b7f37c	184	last LINE unless defined($_ = <CPP>);
a0d0e21e	185	}
a0d0e21e	186	while (/^#.opcode\.h/i .. /^#.perl\.h/i) {
748a9306	187	print "opcode.h>> $_" if $debug > 2;
a0d0e21e	188	if (/^OP \*\s/) { &scan_func($_); }
3e3baf6d	189	if (/^\s*EXT/) { &scan_var($_); }
09b7f37c	190	last LINE unless defined($_ = <CPP>);
a0d0e21e	191	}
09b7f37c	192	# Check for transition to new header file
	193	if (/^# \d+ "(\S+)"/) {
	194	my $spec = $1;
	195	# Pull name from library module or header filespec
	196	$spec =~ /^(\w+)$/ or $spec =~ /(\w+)\.h/i;
	197	my $name = lc $1;
	198	$ckfunc = exists $checkh{$name} ? 1 : 0;
	199	$scanname = $name if $ckfunc;
	200	print "Header file transition: ckfunc = $ckfunc for $name.h\n" if $debug > 1;
61bb5906	201	}
09b7f37c	202	if ($ckfunc) {
09b7f37c	203	print "$scanname>> $_" if $debug > 2;
3e3baf6d	204	if (/\s*^EXT/) { &scan_var($_); }
09b7f37c	205	else { &scan_func($_); }
	206	}
	207	else {
	208	print $_ if $debug > 3 && ($debug > 5 \|\| length($_));
	209	if (/^\s*EXT/) { &scan_var($_); }
a0d0e21e	210	}
a0d0e21e	211	}
a0d0e21e	212	close CPP;
b9f71c63	213
a0d0e21e	214	while (<DATA>) {
	215	next if /^#/;
	216	s/\s+#.*\n//;
4633a7c4	217	next if /^\s*$/;
a0d0e21e	218	($key,$array) = split('=',$_);
cc391245	219	if ($array eq 'vars') { $key = "PL_$key"; }
cc391245	220	else { $key = "Perl_$key"; }
748a9306	221	print "Adding $key to \%$array list\n" if $debug > 1;
a0d0e21e	222	${$array}{$key}++;
a0d0e21e	223	}
9ef4b0a6	224	if ($debugging_enabled and $isgcc) { $vars{'colors'}++ }
748a9306	225	foreach (split /\s+/, $extnames) {
	226	my($pkgname) = $_;
	227	$pkgname =~ s/::/__/g;
4633a7c4	228	$fcns{"boot_$pkgname"}++;
4633a7c4	229	print "Adding boot_$pkgname to \%fcns (for extension $_)\n" if $debug;
748a9306	230	}
a0d0e21e	231
	232	# Eventually, we'll check against existing copies here, so we can add new
	233	# symbols to an existing options file in an upwardly-compatible manner.
	234
	235	$marord++;
748a9306	236	open(OPTBLD,">${dir}${dbgprefix}perlshr_bld.opt")
748a9306	237	or die "$0: Can't write to ${dir}${dbgprefix}perlshr_bld.opt: $!\n";
a0d0e21e	238	if ($isvax) {
	239	open(MAR,">${dir}perlshr_gbl${marord}.mar")
	240	or die "$0: Can't write to ${dir}perlshr_gbl${marord}.mar: $!\n";
748a9306	241	print MAR "\t.title perlshr_gbl$marord\n";
a0d0e21e	242	}
5e4ba136	243
71be2cbc	244	unless ($isgcc) {
	245	print OPTBLD "PSECT_ATTR=\$GLOBAL_RO_VARS,PIC,NOEXE,RD,NOWRT,SHR\n";
	246	print OPTBLD "PSECT_ATTR=\$GLOBAL_RW_VARS,PIC,NOEXE,RD,WRT,NOSHR\n";
	247	}
b6837a3b	248	print OPTBLD "case_sensitive=yes\n" if $care_about_case;
71be2cbc	249	foreach $var (sort (keys %vars,keys %cvars)) {
748a9306	250	if ($isvax) { print OPTBLD "UNIVERSAL=$var\n"; }
748a9306	251	else { print OPTBLD "SYMBOL_VECTOR=($var=DATA)\n"; }
4633a7c4	252	# This hack brought to you by the lack of a globaldef in gcc.
4633a7c4	253	if ($isgcc) {
a0d0e21e	254	if ($count++ > 200) { # max 254 psects/file
	255	print MAR "\t.end\n";
	256	close MAR;
	257	$marord++;
	258	open(MAR,">${dir}perlshr_gbl${marord}.mar")
	259	or die "$0: Can't write to ${dir}perlshr_gbl${marord}.mar: $!\n";
748a9306	260	print MAR "\t.title perlshr_gbl$marord\n";
a0d0e21e	261	$count = 0;
a0d0e21e	262	}
a0d0e21e	263	print MAR "\t.psect ${var},long,pic,ovr,rd,wrt,noexe,noshr\n";
	264	print MAR "\t${var}:: .blkl 1\n";
	265	}
	266	}
	267
	268	print MAR "\t.psect \$transfer_vec,pic,rd,nowrt,exe,shr\n" if ($isvax);
4633a7c4	269	foreach $func (sort keys %fcns) {
a0d0e21e	270	if ($isvax) {
	271	print MAR "\t.transfer $func\n";
	272	print MAR "\t.mask $func\n";
4633a7c4	273	print MAR "\tjmp G\^${func}+2\n";
a0d0e21e	274	}
748a9306	275	else { print OPTBLD "SYMBOL_VECTOR=($func=PROCEDURE)\n"; }
a0d0e21e	276	}
4633a7c4	277	if ($isvax) {
	278	print MAR "\t.end\n";
	279	close MAR;
	280	}
a0d0e21e	281
4633a7c4	282	open(OPTATTR,">${dir}perlshr_attr.opt")
4633a7c4	283	or die "$0: Can't write to ${dir}perlshr_attr.opt: $!\n";
ecc0eccd	284	if ($isgcc) {
71be2cbc	285	foreach $var (sort keys %cvars) {
	286	print OPTATTR "PSECT_ATTR=${var},PIC,OVR,RD,NOEXE,NOWRT,SHR\n";
	287	}
	288	foreach $var (sort keys %vars) {
	289	print OPTATTR "PSECT_ATTR=${var},PIC,OVR,RD,NOEXE,WRT,NOSHR\n";
	290	}
	291	}
	292	else {
	293	print OPTATTR "! No additional linker directives are needed when using DECC\n";
4633a7c4	294	}
a0d0e21e	295	close OPTATTR;
4633a7c4	296
b6837a3b	297	$incstr = 'PERL,GLOBALS';
a0d0e21e	298	if ($isvax) {
a0d0e21e	299	$drvrname = "Compile_shrmars.tmp_".time;
	300	open (DRVR,">$drvrname") or die "$0: Can't write to $drvrname: $!\n";
	301	print DRVR "\$ Set NoOn\n";
	302	print DRVR "\$ Delete/NoLog/NoConfirm $drvrname;\n";
	303	print DRVR "\$ old_proc_vfy = F\$Environment(\"VERIFY_PROCEDURE\")\n";
	304	print DRVR "\$ old_img_vfy = F\$Environment(\"VERIFY_IMAGE\")\n";
748a9306	305	print DRVR "\$ MCR $^X -e \"\$ENV{'LIBPERL_RDT'} = (stat('$libperl'))[9]\"\n";
a0d0e21e	306	print DRVR "\$ Set Verify\n";
748a9306	307	print DRVR "\$ If F\$Search(\"$libperl\").eqs.\"\" Then Library/Object/Create $libperl\n";
a0d0e21e	308	do {
bbce6d69	309	push(@symfiles,"perlshr_gbl$marord");
a0d0e21e	310	print DRVR "\$ Macro/NoDebug/Object=PerlShr_Gbl${marord}$objsuffix PerlShr_Gbl$marord.Mar\n";
748a9306	311	print DRVR "\$ Library/Object/Replace/Log $libperl PerlShr_Gbl${marord}$objsuffix\n";
a0d0e21e	312	} while (--$marord);
748a9306	313	# We had to have a working miniperl to run this program; it's probably the
	314	# one we just built. It depended on LibPerl, which will be changed when
	315	# the PerlShr_Gbl* modules get inserted, so miniperl will be out of date,
	316	# and so, therefore, will all of its dependents . . .
	317	# We touch LibPerl here so it'll be back 'in date', and we won't rebuild
	318	# miniperl etc., and therefore LibPerl, the next time we invoke MM[KS].
a0d0e21e	319	print DRVR "\$ old_proc_vfy = F\$Verify(old_proc_vfy,old_img_vfy)\n";
748a9306	320	print DRVR "\$ MCR $^X -e \"utime 0, \$ENV{'LIBPERL_RDT'}, '$libperl'\"\n";
a0d0e21e	321	close DRVR;
a0d0e21e	322	}
748a9306	323
bbce6d69	324	# Initial hack to permit building of compatible shareable images for a
	325	# given version of Perl.
	326	if ($ENV{PERLSHR_USE_GSMATCH}) {
424a8fe9	327	if ($ENV{PERLSHR_USE_GSMATCH} eq 'INCLUDE_COMPILE_OPTIONS') {
	328	# Build up a major ID. Since it can only be 8 bits, we encode the version
	329	# number in the top four bits and use the bottom four for build options
	330	# that'll cause incompatibilities
	331	($ver, $sub) = $] =~ /\.(\d\d\d)(\d\d)/;
e4dfc136	332	$ver += 0; $sub += 0;
424a8fe9	333	$gsmatch = ($sub >= 50) ? "equal" : "lequal"; # Force an equal match for
	334	# dev, but be more forgiving
	335	# for releases
	336
	337	$ver *=16;
	338	$ver += 8 if $debugging_enabled; # If DEBUGGING is set
	339	$ver += 4 if $use_threads; # if we're threaded
	340	$ver += 2 if $use_mymalloc; # if we're using perl's malloc
	341	print OPTBLD "GSMATCH=$gsmatch,$ver,$sub\n";
	342	}
	343	else {
	344	my $major = int($] * 1000) & 0xFF; # range 0..255
	345	my $minor = int(($] * 1000 - $major) * 100 + 0.5) & 0xFF; # range 0..255
	346	print OPTBLD "GSMATCH=LEQUAL,$major,$minor\n";
	347	}
09b7f37c	348	print OPTBLD 'CLUSTER=$$TRANSFER_VECTOR,,',
09b7f37c	349	map(",$_$objsuffix",@symfiles), "\n";
bbce6d69	350	}
36477c24	351	elsif (@symfiles) { $incstr .= ',' . join(',',@symfiles); }
748a9306	352	# Include object modules and RTLs in options file
	353	# Linker wants /Include and /Library on different lines
	354	print OPTBLD "$libperl/Include=($incstr)\n";
	355	print OPTBLD "$libperl/Library\n";
a5f75d66	356	open(RTLOPT,$rtlopt) or die "$0: Can't read options file $rtlopt: $!\n";
748a9306	357	while (<RTLOPT>) { print OPTBLD; }
	358	close RTLOPT;
	359	close OPTBLD;
	360
	361	exec "\$ \@$drvrname" if $isvax;
	362
	363
a0d0e21e	364	__END__
	365
	366	# Oddball cases, so we can keep the perl.h scan above simple
a0d0e21e	367	regkind=vars # declared in regcomp.h
	368	simple=vars # declared in regcomp.h
	369	varies=vars # declared in regcomp.h