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Diffstat (limited to 'vms/gen_shrfls.pl')
-rw-r--r--vms/gen_shrfls.pl97
1 files changed, 78 insertions, 19 deletions
diff --git a/vms/gen_shrfls.pl b/vms/gen_shrfls.pl
index 043faccb09..d3a8ab9140 100644
--- a/vms/gen_shrfls.pl
+++ b/vms/gen_shrfls.pl
@@ -34,14 +34,19 @@
# (i.e. /Define=DEBUGGING,EMBED,MULTIPLICITY)?
#
# Author: Charles Bailey bailey@genetics.upenn.edu
-# Revised: 01-Mar-1995
+# Revised: 28-May-1995
require 5.000;
$debug = $ENV{'GEN_SHRFLS_DEBUG'};
$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 = ($cc_cmd !~ /~~NOCC~~/);
+$docc = ($cc_cmd !~ /^~~/);
print "\$docc = $docc\n" if $debug;
if ($docc) {
@@ -55,11 +60,30 @@ if ($docc) {
}
print "Filtered \$cc_cmd: \\$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 && $isvax && `$cc_cmd /ansi_alias _nla0:` =~ /IVQUAL/)
+ or 0; # again, make debug output nice
+ print "\$isgcc: $isgcc\n" if $debug;
+ print "\$isvaxc: $isvaxc\n" if $debug;
+
if (-f 'perl.h') { $dir = '[]'; }
elsif (-f '[-]perl.h') { $dir = '[-]'; }
else { die "$0: Can't find perl.h\n"; }
}
-else { ($cpp_file) = ($cc_cmd =~ /~~NOCC~~(.*)/) }
+else {
+ ($ccvers,$cpp_file) = ($cc_cmd =~ /^~~(\w+)~~(.*)/);
+ $isgcc = $ccvers =~ /GCC/
+ or 0; # for nice debug output
+ $isvaxc = (!$isgcc && $ccvers =~ /VAXC/)
+ or 0; # again, for nice debug output
+ print "\$isgcc: \\$isgcc\\\n" if $debug;
+ print "\$isvaxc: \\$isvaxc\\\n" if $debug;
+ print "Not running cc, preprocesor output in \\$cpp_file\\\n" if $debug;
+}
$objsuffix = shift @ARGV;
print "\$objsuffix: \\$objsuffix\\\n" if $debug;
@@ -73,9 +97,32 @@ print "\$extnames: \\$extnames\\\n" if $debug;
$rtlopt = shift @ARGV;
print "\$rtlopt: \\$rtlopt\\\n" if $debug;
-# Someday, we'll have $GetSyI built into perl . . .
-$isvax = `\$ Write Sys\$Output F\$GetSyI(\"HW_MODEL\")` <= 1024;
-print "\$isvax: \\$isvax\\\n" if $debug;
+# This part gets tricky. VAXC creates creating global symbols for the
+# constants in an enum if that enum is ever used as the data type of a
+# global[dr]ef. We have to detect enums which are used in this way, so we
+# can set up the constants as universal symbols, since anything which
+# #includes perl.h will want to resolve these global symbols.
+# We're using a weak test here - we basically know that the only enums
+# we need to handle now are the big one in opcode.h, and the
+# "typedef enum { ... } expectation" in perl.h, so we hard code
+# appropriate tests below. Since we can't know in general whether a given
+# enum will be used elsewhere in a globaldef, it's hard to decide a
+# priori whether its constants need to be treated as global symbols.
+sub scan_enum {
+ my($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 "\tvar name is \\$1\\\n" if $debug > 1;
+ $vars{$1}++;
+ }
+}
sub scan_var {
my($line) = @_;
@@ -101,7 +148,7 @@ sub scan_func {
if ($1 eq 'main' || $1 eq 'perl_init_ext') {
print "\tskipped\n" if $debug > 1;
}
- else { $funcs{$1}++ }
+ else { $fcns{$1}++ }
}
}
@@ -128,6 +175,12 @@ LINE: while (<CPP>) {
print "opcode.h>> $_" if $debug > 2;
if (/^OP \*\s/) { &scan_func($_); }
if (/^EXT/) { &scan_var($_); }
+ if (/^\s+OP_/) { &scan_enum($_); }
+ last LINE unless $_ = <CPP>;
+ }
+ while (/^typedef enum/ .. /^\}/) {
+ print "global enum>> $_" if $debug > 2;
+ &scan_enum($_);
last LINE unless $_ = <CPP>;
}
while (/^#.*proto\.h/i .. /^#.*perl\.h/i) {
@@ -143,6 +196,7 @@ close CPP;
while (<DATA>) {
next if /^#/;
s/\s+#.*\n//;
+ next if /^\s*$/;
($key,$array) = split('=',$_);
print "Adding $key to \%$array list\n" if $debug > 1;
${$array}{$key}++;
@@ -150,8 +204,8 @@ while (<DATA>) {
foreach (split /\s+/, $extnames) {
my($pkgname) = $_;
$pkgname =~ s/::/__/g;
- $funcs{"boot_$pkgname"}++;
- print "Adding boot_$pkgname to \%funcs (for extension $_)\n" if $debug;
+ $fcns{"boot_$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
@@ -160,19 +214,16 @@ foreach (split /\s+/, $extnames) {
$marord++;
open(OPTBLD,">${dir}${dbgprefix}perlshr_bld.opt")
or die "$0: Can't write to ${dir}${dbgprefix}perlshr_bld.opt: $!\n";
-open(OPTATTR,">${dir}perlshr_attr.opt")
- or die "$0: Can't write to ${dir}perlshr_attr.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";
}
-print OPTATTR "PSECT_ATTR=\$CHAR_STRING_CONSTANTS,PIC,SHR,NOEXE,RD,NOWRT\n";
foreach $var (sort keys %vars) {
- print OPTATTR "PSECT_ATTR=${var},PIC,OVR,RD,NOEXE,WRT,NOSHR\n";
if ($isvax) { print OPTBLD "UNIVERSAL=$var\n"; }
else { print OPTBLD "SYMBOL_VECTOR=($var=DATA)\n"; }
- if ($isvax) {
+ # 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;
@@ -182,27 +233,35 @@ foreach $var (sort keys %vars) {
print MAR "\t.title perlshr_gbl$marord\n";
$count = 0;
}
- # This hack brought to you by the lack of a globaldef in gcc.
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 %funcs) {
+foreach $func (sort keys %fcns) {
if ($isvax) {
print MAR "\t.transfer $func\n";
print MAR "\t.mask $func\n";
- print MAR "\tjmp L\^${func}+2\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";
+print OPTATTR "PSECT_ATTR=\$CHAR_STRING_CONSTANTS,PIC,SHR,NOEXE,RD,NOWRT\n";
+foreach $var (sort keys %vars) {
+ print OPTATTR "PSECT_ATTR=${var},PIC,OVR,RD,NOEXE,WRT,NOSHR\n";
+}
close OPTATTR;
+
$incstr = 'perl,globals';
if ($isvax) {
- print MAR "\t.end\n";
- close MAR;
$drvrname = "Compile_shrmars.tmp_".time;
open (DRVR,">$drvrname") or die "$0: Can't write to $drvrname: $!\n";
print DRVR "\$ Set NoOn\n";
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