[perl5.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. 18-Dec-2003\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 \(F\$GetSyI(\"HW_MODEL\") .LE. 1024 .AND. F\$GetSyI(\"HW_MODEL\") .GT. 0\)`;
chomp $isvax;
print "\$isvax: \\$isvax\\\n" if $debug;

$isi64 = `\$ Write Sys\$Output \(F\$GetSyI(\"HW_MODEL\") .GE. 4096)`;
chomp $isi64;
print "\$isi64: \\$isi64\\\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"; }

  $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";
  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;
    $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,$suffix) =
         ($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

  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 @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)\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)) {
        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'}++;
}

if ($use_perlio) {
  $preprocess_list = "${dir}perl.h+${dir}perlapi.h,${dir}perliol.h";
} else {
  $preprocess_list = "${dir}perl.h+${dir}perlapi.h";
}

$used_expectation_enum = $used_opcode_enum = 0; # avoid warnings
if ($docc) {
  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( thread bytecode byterun proto perlapi perlio perlvars intrpvar thrdvar );
$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;
    $name = 'perlio' if $name eq 'perliol';
    $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 ($isgcc) {
  if ($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";
  }
}
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 LW	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 LW	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 LW	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 LW	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 LW	37
	38	require 5.000;
	39
	40	$debug = $ENV{'GEN_SHRFLS_DEBUG'};
a5f75d66	41
a50752f9	42	print "gen_shrfls.pl Rev. 18-Dec-2003\n" if $debug;
71be2cbc	43
a5f75d66 AD	44	if ($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 LW	57
4633a7c4 LW	58	# Someday, we'll have $GetSyI built into perl . . .
a50752f9 CB	59	$isvax = `\$ Write Sys\$Output \(F\$GetSyI(\"HW_MODEL\") .LE. 1024 .AND. F\$GetSyI(\"HW_MODEL\") .GT. 0\)`;
a50752f9 CB	60	chomp $isvax;
4633a7c4 LW	61	print "\$isvax: \\$isvax\\\n" if $debug;
4633a7c4 LW	62
2ee88f01	63	$isi64 = `\$ Write Sys\$Output \(F\$GetSyI(\"HW_MODEL\") .GE. 4096)`;
e8e09534 PP	64	chomp $isi64;
	65	print "\$isi64: \\$isi64\\\n" if $debug;
	66
a0d0e21e	67	print "Input \$cc_cmd: \\$cc_cmd\\\n" if $debug;
4633a7c4	68	$docc = ($cc_cmd !~ /^~~/);
a0d0e21e LW	69	print "\$docc = $docc\n" if $debug;
	70
	71	if ($docc) {
429a5e67 DS	72	if (-f 'perl.h') { $dir = '[]'; }
	73	elsif (-f '[-]perl.h') { $dir = '[-]'; }
	74	else { die "$0: Can't find perl.h\n"; }
	75
de4b552e	76	$use_threads = $use_mymalloc = $case_about_case = $debugging_enabled = 0;
a15cef0c	77	$hide_mymalloc = $isgcc = $use_perlio = 0;
de4b552e	78
403396f3 CL	79	# Go see what is enabled in config.sh
403396f3 CL	80	$config = $dir . "config.sh";
429a5e67 DS	81	open CONFIG, "< $config";
429a5e67 DS	82	while(<CONFIG>) {
ac25e0e7	83	$use_threads++ if /usethreads='(define\|yes\|true\|t\|y\|1)'/i;
cbe4ad0c	84	$use_mymalloc++ if /usemymalloc='(define\|yes\|true\|t\|y\|1)'/i;
ac25e0e7 CL	85	$care_about_case++ if /d_vms_case_sensitive_symbols='(define\|yes\|true\|t\|y\|1)'/i;
	86	$debugging_enabled++ if /usedebugging_perl='(define\|yes\|true\|t\|y\|1)'/i;
	87	$hide_mymalloc++ if /embedmymalloc='(define\|yes\|true\|t\|y\|1)'/i;
de4b552e	88	$isgcc++ if /gccversion='[^']/;
ac25e0e7	89	$use_perlio++ if /useperlio='(define\|yes\|true\|t\|y\|1)'/i;
429a5e67	90	}
403396f3	91	close CONFIG;
429a5e67	92
a0d0e21e LW	93	# put quotes back onto defines - they were removed by DCL on the way in
	94	if (($prefix,$defines,$suffix) =
	95	($cc_cmd =~ m#(.)/Define=(.?)([/\s].*)#i)) {
	96	$defines =~ s/^\((.*)\)$/$1/;
429a5e67	97	$debugging_enabled \|\|= $defines =~ /\bDEBUGGING\b/;
a0d0e21e LW	98	@defines = split(/,/,$defines);
	99	$cc_cmd = "$prefix/Define=(" . join(',',grep($_ = "\"$_\"",@defines))
	100	. ')' . $suffix;
	101	}
	102	print "Filtered \$cc_cmd: \\$cc_cmd\\\n" if $debug;
	103
4633a7c4 LW	104	# check for gcc - if present, we'll need to use MACRO hack to
4633a7c4 LW	105	# define global symbols for shared variables
de4b552e	106
4633a7c4	107	print "\$isgcc: $isgcc\n" if $debug;
09b7f37c	108	print "\$debugging_enabled: $debugging_enabled\n" if $debug;
4633a7c4	109
a0d0e21e	110	}
4633a7c4	111	else {
a5f75d66	112	($junk,$junk,$cpp_file,$cc_cmd) = split(/~~/,$cc_cmd,4);
482b294c	113	$isgcc = $cc_cmd =~ /case_hack/i
4633a7c4	114	or 0; # for nice debug output
09b7f37c	115	$debugging_enabled = $cc_cmd =~ /\bdebugging\b/i;
4633a7c4	116	print "\$isgcc: \\$isgcc\\\n" if $debug;
09b7f37c	117	print "\$debugging_enabled: \\$debugging_enabled\\\n" if $debug;
4633a7c4 LW	118	print "Not running cc, preprocesor output in \\$cpp_file\\\n" if $debug;
4633a7c4 LW	119	}
a0d0e21e LW	120
	121	$objsuffix = shift @ARGV;
	122	print "\$objsuffix: \\$objsuffix\\\n" if $debug;
748a9306 LW	123	$dbgprefix = shift @ARGV;
	124	print "\$dbgprefix: \\$dbgprefix\\\n" if $debug;
	125	$olbsuffix = shift @ARGV;
	126	print "\$olbsuffix: \\$olbsuffix\\\n" if $debug;
	127	$libperl = "${dbgprefix}libperl$olbsuffix";
	128	$extnames = shift @ARGV;
	129	print "\$extnames: \\$extnames\\\n" if $debug;
	130	$rtlopt = shift @ARGV;
	131	print "\$rtlopt: \\$rtlopt\\\n" if $debug;
a0d0e21e	132
a0d0e21e LW	133	sub scan_var {
a0d0e21e LW	134	my($line) = @_;
71be2cbc	135	my($const) = $line =~ /^EXTCONST/;
a0d0e21e	136
748a9306	137	print "\tchecking for global variable\n" if $debug > 1;
3e3baf6d TB	138	$line =~ s/\s*EXT/EXT/;
3e3baf6d TB	139	$line =~ s/INIT\s\(.\)//;
a0d0e21e LW	140	$line =~ s/\[.*//;
	141	$line =~ s/=.*//;
	142	$line =~ s/\W;?\s$//;
61bb5906	143	$line =~ s/\W\)\s\(.*$//; # closing paren for args stripped in previous stmt
748a9306	144	print "\tfiltered to \\$line\\\n" if $debug > 1;
a0d0e21e	145	if ($line =~ /(\w+)$/) {
71be2cbc	146	print "\tvar name is \\$1\\" . ($const ? ' (const)' : '') . "\n" if $debug > 1;
	147	if ($const) { $cvars{$1}++; }
	148	else { $vars{$1}++; }
	149	}
a0d0e21e LW	150	}
	151
	152	sub scan_func {
b37f629b CB	153	my @lines = split /;/, @_[0];
	154
	155	for my $line (@lines) {
	156	print "\tchecking for global routine\n" if $debug > 1;
	157	$line =~ s/\b(IV\|Off_t\|Size_t\|SSize_t\|void)\b//i;
	158	if ( $line =~ /(\w+)\s*\(/ ) {
	159	print "\troutine name is \\$1\\\n" if $debug > 1;
	160	if ($1 eq 'main' \|\| $1 eq 'perl_init_ext' \|\| $1 eq '__attribute__format__'
	161	\|\| $1 eq 'sizeof' \|\| (($1 eq 'Perl_stashpv_hvname_match') && ! $use_threads)) {
	162	print "\tskipped\n" if $debug > 1;
	163	}
	164	else { $fcns{$1}++ }
a0d0e21e	165	}
a0d0e21e LW	166	}
	167	}
	168
429a5e67 DS	169	# Go add some right up front if we need 'em
429a5e67 DS	170	if ($use_mymalloc) {
b6837a3b CB	171	$fcns{'Perl_malloc'}++;
	172	$fcns{'Perl_calloc'}++;
	173	$fcns{'Perl_realloc'}++;
	174	$fcns{'Perl_mfree'}++;
429a5e67 DS	175	}
429a5e67 DS	176
a15cef0c	177	if ($use_perlio) {
32af7c23	178	$preprocess_list = "${dir}perl.h+${dir}perlapi.h,${dir}perliol.h";
a15cef0c	179	} else {
32af7c23	180	$preprocess_list = "${dir}perl.h+${dir}perlapi.h";
a15cef0c CB	181	}
a15cef0c CB	182
c07a80fd	183	$used_expectation_enum = $used_opcode_enum = 0; # avoid warnings
a0d0e21e	184	if ($docc) {
a15cef0c CB	185	open(CPP,"${cc_cmd}/NoObj/PreProc=Sys\$Output $preprocess_list\|")
a15cef0c CB	186	or die "$0: Can't preprocess $preprocess_list: $!\n";
a0d0e21e LW	187	}
a0d0e21e LW	188	else {
a5f75d66	189	open(CPP,"$cpp_file") or die "$0: Can't read preprocessed file $cpp_file: $!\n";
a0d0e21e	190	}
9fa802f3	191	%checkh = map { $_,1 } qw( thread bytecode byterun proto perlapi perlio perlvars intrpvar thrdvar );
09b7f37c	192	$ckfunc = 0;
a0d0e21e LW	193	LINE: while (<CPP>) {
	194	while (/^#.vmsish\.h/i .. /^#.perl\.h/i) {
	195	while (/__VMS_PROTOTYPES__/i .. /__VMS_SEPYTOTORP__/i) {
748a9306	196	print "vms_proto>> $_" if $debug > 2;
3e3baf6d	197	if (/^\s*EXT/) { &scan_var($_); }
b9f71c63	198	else { &scan_func($_); }
09b7f37c	199	last LINE unless defined($_ = <CPP>);
a0d0e21e	200	}
748a9306	201	print "vmsish.h>> $_" if $debug > 2;
3e3baf6d	202	if (/^\s*EXT/) { &scan_var($_); }
09b7f37c	203	last LINE unless defined($_ = <CPP>);
a0d0e21e LW	204	}
a0d0e21e LW	205	while (/^#.opcode\.h/i .. /^#.perl\.h/i) {
748a9306	206	print "opcode.h>> $_" if $debug > 2;
a0d0e21e	207	if (/^OP \*\s/) { &scan_func($_); }
3e3baf6d	208	if (/^\s*EXT/) { &scan_var($_); }
09b7f37c	209	last LINE unless defined($_ = <CPP>);
a0d0e21e	210	}
09b7f37c CB	211	# Check for transition to new header file
	212	if (/^# \d+ "(\S+)"/) {
	213	my $spec = $1;
	214	# Pull name from library module or header filespec
	215	$spec =~ /^(\w+)$/ or $spec =~ /(\w+)\.h/i;
	216	my $name = lc $1;
a15cef0c	217	$name = 'perlio' if $name eq 'perliol';
09b7f37c CB	218	$ckfunc = exists $checkh{$name} ? 1 : 0;
	219	$scanname = $name if $ckfunc;
	220	print "Header file transition: ckfunc = $ckfunc for $name.h\n" if $debug > 1;
61bb5906	221	}
09b7f37c CB	222	if ($ckfunc) {
09b7f37c CB	223	print "$scanname>> $_" if $debug > 2;
72d9590d	224	if (/^\s*EXT/) { &scan_var($_); }
09b7f37c CB	225	else { &scan_func($_); }
	226	}
	227	else {
	228	print $_ if $debug > 3 && ($debug > 5 \|\| length($_));
	229	if (/^\s*EXT/) { &scan_var($_); }
a0d0e21e	230	}
a0d0e21e LW	231	}
a0d0e21e LW	232	close CPP;
b9f71c63	233
a0d0e21e LW	234	while (<DATA>) {
	235	next if /^#/;
	236	s/\s+#.*\n//;
4633a7c4	237	next if /^\s*$/;
a0d0e21e	238	($key,$array) = split('=',$_);
cc391245 CB	239	if ($array eq 'vars') { $key = "PL_$key"; }
cc391245 CB	240	else { $key = "Perl_$key"; }
748a9306	241	print "Adding $key to \%$array list\n" if $debug > 1;
a0d0e21e LW	242	${$array}{$key}++;
a0d0e21e LW	243	}
9ef4b0a6	244	if ($debugging_enabled and $isgcc) { $vars{'colors'}++ }
748a9306 LW	245	foreach (split /\s+/, $extnames) {
	246	my($pkgname) = $_;
	247	$pkgname =~ s/::/__/g;
4633a7c4 LW	248	$fcns{"boot_$pkgname"}++;
4633a7c4 LW	249	print "Adding boot_$pkgname to \%fcns (for extension $_)\n" if $debug;
748a9306	250	}
a0d0e21e LW	251
	252	# Eventually, we'll check against existing copies here, so we can add new
	253	# symbols to an existing options file in an upwardly-compatible manner.
	254
	255	$marord++;
748a9306 LW	256	open(OPTBLD,">${dir}${dbgprefix}perlshr_bld.opt")
748a9306 LW	257	or die "$0: Can't write to ${dir}${dbgprefix}perlshr_bld.opt: $!\n";
a0d0e21e LW	258	if ($isvax) {
	259	open(MAR,">${dir}perlshr_gbl${marord}.mar")
	260	or die "$0: Can't write to ${dir}perlshr_gbl${marord}.mar: $!\n";
748a9306	261	print MAR "\t.title perlshr_gbl$marord\n";
a0d0e21e	262	}
5e4ba136	263
71be2cbc	264	unless ($isgcc) {
e8e09534 PP	265	if ($isi64) {
	266	print OPTBLD "PSECT_ATTR=\$GLOBAL_RO_VARS,NOEXE,RD,NOWRT,SHR\n";
	267	print OPTBLD "PSECT_ATTR=\$GLOBAL_RW_VARS,NOEXE,RD,WRT,NOSHR\n";
	268	}
	269	else {
	270	print OPTBLD "PSECT_ATTR=\$GLOBAL_RO_VARS,PIC,NOEXE,RD,NOWRT,SHR\n";
	271	print OPTBLD "PSECT_ATTR=\$GLOBAL_RW_VARS,PIC,NOEXE,RD,WRT,NOSHR\n";
	272	}
71be2cbc	273	}
b6837a3b	274	print OPTBLD "case_sensitive=yes\n" if $care_about_case;
71be2cbc	275	foreach $var (sort (keys %vars,keys %cvars)) {
748a9306 LW	276	if ($isvax) { print OPTBLD "UNIVERSAL=$var\n"; }
748a9306 LW	277	else { print OPTBLD "SYMBOL_VECTOR=($var=DATA)\n"; }
4633a7c4 LW	278	# This hack brought to you by the lack of a globaldef in gcc.
4633a7c4 LW	279	if ($isgcc) {
a0d0e21e LW	280	if ($count++ > 200) { # max 254 psects/file
	281	print MAR "\t.end\n";
	282	close MAR;
	283	$marord++;
	284	open(MAR,">${dir}perlshr_gbl${marord}.mar")
	285	or die "$0: Can't write to ${dir}perlshr_gbl${marord}.mar: $!\n";
748a9306	286	print MAR "\t.title perlshr_gbl$marord\n";
a0d0e21e LW	287	$count = 0;
a0d0e21e LW	288	}
a0d0e21e LW	289	print MAR "\t.psect ${var},long,pic,ovr,rd,wrt,noexe,noshr\n";
	290	print MAR "\t${var}:: .blkl 1\n";
	291	}
	292	}
	293
	294	print MAR "\t.psect \$transfer_vec,pic,rd,nowrt,exe,shr\n" if ($isvax);
4633a7c4	295	foreach $func (sort keys %fcns) {
a0d0e21e LW	296	if ($isvax) {
	297	print MAR "\t.transfer $func\n";
	298	print MAR "\t.mask $func\n";
4633a7c4	299	print MAR "\tjmp G\^${func}+2\n";
a0d0e21e	300	}
748a9306	301	else { print OPTBLD "SYMBOL_VECTOR=($func=PROCEDURE)\n"; }
a0d0e21e	302	}
4633a7c4 LW	303	if ($isvax) {
	304	print MAR "\t.end\n";
	305	close MAR;
	306	}
a0d0e21e	307
4633a7c4 LW	308	open(OPTATTR,">${dir}perlshr_attr.opt")
4633a7c4 LW	309	or die "$0: Can't write to ${dir}perlshr_attr.opt: $!\n";
ecc0eccd	310	if ($isgcc) {
71be2cbc	311	foreach $var (sort keys %cvars) {
	312	print OPTATTR "PSECT_ATTR=${var},PIC,OVR,RD,NOEXE,NOWRT,SHR\n";
	313	}
	314	foreach $var (sort keys %vars) {
	315	print OPTATTR "PSECT_ATTR=${var},PIC,OVR,RD,NOEXE,WRT,NOSHR\n";
	316	}
	317	}
	318	else {
	319	print OPTATTR "! No additional linker directives are needed when using DECC\n";
4633a7c4	320	}
a0d0e21e	321	close OPTATTR;
4633a7c4	322
b6837a3b	323	$incstr = 'PERL,GLOBALS';
a0d0e21e	324	if ($isvax) {
a0d0e21e LW	325	$drvrname = "Compile_shrmars.tmp_".time;
	326	open (DRVR,">$drvrname") or die "$0: Can't write to $drvrname: $!\n";
	327	print DRVR "\$ Set NoOn\n";
	328	print DRVR "\$ Delete/NoLog/NoConfirm $drvrname;\n";
	329	print DRVR "\$ old_proc_vfy = F\$Environment(\"VERIFY_PROCEDURE\")\n";
	330	print DRVR "\$ old_img_vfy = F\$Environment(\"VERIFY_IMAGE\")\n";
748a9306	331	print DRVR "\$ MCR $^X -e \"\$ENV{'LIBPERL_RDT'} = (stat('$libperl'))[9]\"\n";
a0d0e21e	332	print DRVR "\$ Set Verify\n";
748a9306	333	print DRVR "\$ If F\$Search(\"$libperl\").eqs.\"\" Then Library/Object/Create $libperl\n";
a0d0e21e	334	do {
bbce6d69	335	push(@symfiles,"perlshr_gbl$marord");
a0d0e21e	336	print DRVR "\$ Macro/NoDebug/Object=PerlShr_Gbl${marord}$objsuffix PerlShr_Gbl$marord.Mar\n";
748a9306	337	print DRVR "\$ Library/Object/Replace/Log $libperl PerlShr_Gbl${marord}$objsuffix\n";
a0d0e21e	338	} while (--$marord);
748a9306 LW	339	# We had to have a working miniperl to run this program; it's probably the
	340	# one we just built. It depended on LibPerl, which will be changed when
	341	# the PerlShr_Gbl* modules get inserted, so miniperl will be out of date,
	342	# and so, therefore, will all of its dependents . . .
	343	# We touch LibPerl here so it'll be back 'in date', and we won't rebuild
	344	# miniperl etc., and therefore LibPerl, the next time we invoke MM[KS].
a0d0e21e	345	print DRVR "\$ old_proc_vfy = F\$Verify(old_proc_vfy,old_img_vfy)\n";
748a9306	346	print DRVR "\$ MCR $^X -e \"utime 0, \$ENV{'LIBPERL_RDT'}, '$libperl'\"\n";
a0d0e21e	347	close DRVR;
a0d0e21e	348	}
748a9306	349
bbce6d69	350	# Initial hack to permit building of compatible shareable images for a
	351	# given version of Perl.
	352	if ($ENV{PERLSHR_USE_GSMATCH}) {
424a8fe9 CB	353	if ($ENV{PERLSHR_USE_GSMATCH} eq 'INCLUDE_COMPILE_OPTIONS') {
	354	# Build up a major ID. Since it can only be 8 bits, we encode the version
	355	# number in the top four bits and use the bottom four for build options
	356	# that'll cause incompatibilities
	357	($ver, $sub) = $] =~ /\.(\d\d\d)(\d\d)/;
e4dfc136	358	$ver += 0; $sub += 0;
424a8fe9 CB	359	$gsmatch = ($sub >= 50) ? "equal" : "lequal"; # Force an equal match for
	360	# dev, but be more forgiving
	361	# for releases
	362
	363	$ver *=16;
	364	$ver += 8 if $debugging_enabled; # If DEBUGGING is set
	365	$ver += 4 if $use_threads; # if we're threaded
	366	$ver += 2 if $use_mymalloc; # if we're using perl's malloc
	367	print OPTBLD "GSMATCH=$gsmatch,$ver,$sub\n";
	368	}
	369	else {
	370	my $major = int($] * 1000) & 0xFF; # range 0..255
	371	my $minor = int(($] * 1000 - $major) * 100 + 0.5) & 0xFF; # range 0..255
	372	print OPTBLD "GSMATCH=LEQUAL,$major,$minor\n";
	373	}
09b7f37c CB	374	print OPTBLD 'CLUSTER=$$TRANSFER_VECTOR,,',
09b7f37c CB	375	map(",$_$objsuffix",@symfiles), "\n";
bbce6d69	376	}
36477c24	377	elsif (@symfiles) { $incstr .= ',' . join(',',@symfiles); }
748a9306 LW	378	# Include object modules and RTLs in options file
	379	# Linker wants /Include and /Library on different lines
	380	print OPTBLD "$libperl/Include=($incstr)\n";
	381	print OPTBLD "$libperl/Library\n";
a5f75d66	382	open(RTLOPT,$rtlopt) or die "$0: Can't read options file $rtlopt: $!\n";
748a9306 LW	383	while (<RTLOPT>) { print OPTBLD; }
	384	close RTLOPT;
	385	close OPTBLD;
	386
	387	exec "\$ \@$drvrname" if $isvax;
	388
	389
a0d0e21e LW	390	__END__
	391
	392	# Oddball cases, so we can keep the perl.h scan above simple
a0d0e21e LW	393	regkind=vars # declared in regcomp.h
	394	simple=vars # declared in regcomp.h
	395	varies=vars # declared in regcomp.h