# 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
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]: $!\n";
+ open(INP,'<',$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>) {
my $cc_cmd = shift @ARGV; # no longer used to run the preprocessor
-# Someday, we'll have $GetSyI built into perl . . .
-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;
my $docc = ($cc_cmd !~ /^~~/);
print "\$docc = $docc\n" if $debug;
while (my $line = <$makedefs>) {
chomp $line;
+ $line = shorten_symbol($line, $care_about_case) if $shorten_symbols;
# makedef.pl loses distinction between vars and funcs, so
# use the start of the name to guess and add specific
# exceptions when we know about them.
- if ($line =~ m/^PL_/
+ if ($line =~ m/^(PL_|MallocCfg)/
|| $line eq 'PerlIO_perlio'
|| $line eq 'PerlIO_pending') {
$vars{$line}++;
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.
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")
- 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 "PSECT_ATTR=LIB\$INITIALIZE,GBL,NOEXE,NOWRT,NOSHR,LONG\n";
}
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.
- 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 OPTBLD "SYMBOL_VECTOR=($var=DATA)\n";
}
-print MAR "\t.psect \$transfer_vec,pic,rd,nowrt,exe,shr\n" if ($isvax);
foreach my $func (sort keys %fcns) {
- if ($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;
+ print OPTBLD "SYMBOL_VECTOR=($func=PROCEDURE)\n";
}
open(OPTATTR, '>', "${dir}perlshr_attr.opt")
}
close OPTATTR;
-my $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";
- 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
- my ($ver, $sub) = $] =~ /\.(\d\d\d)(\d\d)/;
+ # Build up a major ID. Since on Alpha it can only be 8 bits, we encode
+ # the version number in the top 6 bits and use the bottom 2 for build
+ # options most likely to cause incompatibilities. Breaks at Perl 5.64.
+ my ($ver, $sub) = $] =~ /\.(\d\d\d)(\d\d\d)/;
$ver += 0; $sub += 0;
- my $gsmatch = ($sub >= 50) ? "equal" : "lequal"; # Force an equal match for
+ my $gsmatch = ($ver % 2 == 1) ? "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
+ $ver <<= 2;
+ $ver += 1 if $debugging_enabled; # If DEBUGGING is set
+ $ver += 2 if $use_threads; # if we're threaded
print OPTBLD "GSMATCH=$gsmatch,$ver,$sub\n";
}
else {
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: $!\n";
+open(RTLOPT,'<',$rtlopt) or die "$0: Can't read options file $rtlopt: $!\n";
while (<RTLOPT>) { print OPTBLD; }
close RTLOPT;
close OPTBLD;
-exec "\$ \@$drvrname" if $isvax;
+# Symbol shortening Copyright (c) 2012 Craig A. Berry
+#
+# Released under the same terms as Perl itself.
+#
+# This code provides shortening of long symbols (> 31 characters) using the
+# same mechanism as the OpenVMS C compiler. The basic procedure is to compute
+# an AUTODIN II checksum of the entire symbol, encode the checksum in base32,
+# and glue together a shortened symbol from the first 23 characters of the
+# original symbol plus the encoded checksum appended. The output format is
+# the same used in the name mangler database, stored by default in
+# [.CXX_REPOSITORY]CXX$DEMANGLER_DB.
+
+sub crc32 {
+ use constant autodin_ii_table => [
+ 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
+ 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
+ 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2,
+ 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
+ 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
+ 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
+ 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c,
+ 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
+ 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423,
+ 0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
+ 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106,
+ 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
+ 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d,
+ 0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
+ 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
+ 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
+ 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7,
+ 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
+ 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa,
+ 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
+ 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81,
+ 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
+ 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84,
+ 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
+ 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
+ 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
+ 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e,
+ 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
+ 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55,
+ 0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
+ 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28,
+ 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
+ 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f,
+ 0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
+ 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
+ 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
+ 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69,
+ 0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
+ 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc,
+ 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
+ 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693,
+ 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
+ 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d,
+ ];
+
+ my $input_string = shift;
+ my $crc = 0xFFFFFFFF;
+
+ for my $byte (unpack 'C*', $input_string) {
+ $crc = ($crc >> 8) ^ autodin_ii_table->[($crc ^ $byte) & 0xff];
+ }
+ return ~$crc;
+}
+
+sub base32 {
+ my $input = shift;
+ my $output = '';
+ use constant base32hex_table => [
+ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
+ 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j',
+ 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't',
+ 'u', 'v'
+ ];
+
+ # Grab lowest 5 bits and look up conversion in table. Lather, rinse,
+ # repeat for a total of 7, 5-bit chunks to accommodate 32 bits of input.
+
+ for (0..6) {
+ $output = base32hex_table->[$input & 0x1f] . $output;
+ $input >>= 5; # position to look at next 5
+ }
+ $output .= '$'; # It's DEC, so use '$' not '=' to pad.
+
+ return $output;
+}
+
+sub shorten_symbol {
+ my $input_symbol = shift;
+ my $as_is_flag = shift;
+ my $symbol = $input_symbol;
+
+ return $symbol unless length($input_symbol) > 31;
+
+ $symbol = uc($symbol) unless $as_is_flag;
+ my $crc = crc32($symbol);
+ $crc = ~$crc; # Compiler uses non-inverted form.
+ my $b32 = base32($crc);
+ $b32 = uc($b32) unless $as_is_flag;
+
+ return substr($symbol, 0, 23) . $b32;
+}
__END__
+
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