1 # Create global symbol declarations, transfer vector, and
2 # linker options files for PerlShr.
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.
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
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
20 # PerlShr_Bld.Opt - declares universal symbols for PerlShr.Exe
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.
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)?
36 # Author: Charles Bailey bailey@newman.upenn.edu
40 $debug = $ENV{'GEN_SHRFLS_DEBUG'};
42 print "gen_shrfls.pl Rev. 14-Dec-1997\n" if $debug;
44 if ($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 $debug;
50 push(@ARGV,split(/\|/,$_));
53 print "Read input data | ",join(' | ',@ARGV)," |\n" if $debug > 1;
56 $cc_cmd = shift @ARGV;
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 $debug;
62 print "Input \$cc_cmd: \\$cc_cmd\\\n" if $debug;
63 $docc = ($cc_cmd !~ /^~~/);
64 print "\$docc = $docc\n" if $debug;
67 if (-f 'perl.h') { $dir = '[]'; }
68 elsif (-f '[-]perl.h') { $dir = '[-]'; }
69 else { die "$0: Can't find perl.h\n"; }
71 $use_threads = $use_mymalloc = $case_about_case = $debugging_enabled = 0;
72 $hide_mymalloc = $isgcc = 0;
74 # Go see what is enabled in config.sh
75 $config = $dir . "config.sh";
76 open CONFIG, "< $config";
78 $use_threads++ if /usethreads='define'/;
79 $use_mymalloc++ if /usemymalloc='Y'/;
80 $care_about_case++ if /d_vms_case_sensitive_symbols='define'/;
81 $debugging_enabled++ if /usedebugging_perl='Y'/;
82 $hide_mymalloc++ if /embedmymalloc='Y'/;
83 $isgcc++ if /gccversion='[^']/;
87 # put quotes back onto defines - they were removed by DCL on the way in
88 if (($prefix,$defines,$suffix) =
89 ($cc_cmd =~ m#(.*)/Define=(.*?)([/\s].*)#i)) {
90 $defines =~ s/^\((.*)\)$/$1/;
91 $debugging_enabled ||= $defines =~ /\bDEBUGGING\b/;
92 @defines = split(/,/,$defines);
93 $cc_cmd = "$prefix/Define=(" . join(',',grep($_ = "\"$_\"",@defines))
96 print "Filtered \$cc_cmd: \\$cc_cmd\\\n" if $debug;
98 # check for gcc - if present, we'll need to use MACRO hack to
99 # define global symbols for shared variables
101 print "\$isgcc: $isgcc\n" if $debug;
102 print "\$debugging_enabled: $debugging_enabled\n" if $debug;
106 ($junk,$junk,$cpp_file,$cc_cmd) = split(/~~/,$cc_cmd,4);
107 $isgcc = $cc_cmd =~ /case_hack/i
108 or 0; # for nice debug output
109 $debugging_enabled = $cc_cmd =~ /\bdebugging\b/i;
110 print "\$isgcc: \\$isgcc\\\n" if $debug;
111 print "\$debugging_enabled: \\$debugging_enabled\\\n" if $debug;
112 print "Not running cc, preprocesor output in \\$cpp_file\\\n" if $debug;
115 $objsuffix = shift @ARGV;
116 print "\$objsuffix: \\$objsuffix\\\n" if $debug;
117 $dbgprefix = shift @ARGV;
118 print "\$dbgprefix: \\$dbgprefix\\\n" if $debug;
119 $olbsuffix = shift @ARGV;
120 print "\$olbsuffix: \\$olbsuffix\\\n" if $debug;
121 $libperl = "${dbgprefix}libperl$olbsuffix";
122 $extnames = shift @ARGV;
123 print "\$extnames: \\$extnames\\\n" if $debug;
124 $rtlopt = shift @ARGV;
125 print "\$rtlopt: \\$rtlopt\\\n" if $debug;
129 my($const) = $line =~ /^EXTCONST/;
131 print "\tchecking for global variable\n" if $debug > 1;
132 $line =~ s/\s*EXT/EXT/;
133 $line =~ s/INIT\s*\(.*\)//;
136 $line =~ s/\W*;?\s*$//;
137 $line =~ s/\W*\)\s*\(.*$//; # closing paren for args stripped in previous stmt
138 print "\tfiltered to \\$line\\\n" if $debug > 1;
139 if ($line =~ /(\w+)$/) {
140 print "\tvar name is \\$1\\" . ($const ? ' (const)' : '') . "\n" if $debug > 1;
141 if ($const) { $cvars{$1}++; }
142 else { $vars{$1}++; }
149 print "\tchecking for global routine\n" if $debug > 1;
150 if ( $line =~ /(\w+)\s*\(/ ) {
151 print "\troutine name is \\$1\\\n" if $debug > 1;
152 if ($1 eq 'main' || $1 eq 'perl_init_ext') {
153 print "\tskipped\n" if $debug > 1;
159 # Go add some right up front if we need 'em
161 $fcns{'Perl_malloc'}++;
162 $fcns{'Perl_calloc'}++;
163 $fcns{'Perl_realloc'}++;
164 $fcns{'Perl_mfree'}++;
167 $used_expectation_enum = $used_opcode_enum = 0; # avoid warnings
169 open(CPP,"${cc_cmd}/NoObj/PreProc=Sys\$Output ${dir}perl.h|")
170 or die "$0: Can't preprocess ${dir}perl.h: $!\n";
173 open(CPP,"$cpp_file") or die "$0: Can't read preprocessed file $cpp_file: $!\n";
175 %checkh = map { $_,1 } qw( thread bytecode byterun proto perlio );
177 LINE: while (<CPP>) {
178 while (/^#.*vmsish\.h/i .. /^#.*perl\.h/i) {
179 while (/__VMS_PROTOTYPES__/i .. /__VMS_SEPYTOTORP__/i) {
180 print "vms_proto>> $_" if $debug > 2;
181 if (/^\s*EXT/) { &scan_var($_); }
182 else { &scan_func($_); }
183 last LINE unless defined($_ = <CPP>);
185 print "vmsish.h>> $_" if $debug > 2;
186 if (/^\s*EXT/) { &scan_var($_); }
187 last LINE unless defined($_ = <CPP>);
189 while (/^#.*opcode\.h/i .. /^#.*perl\.h/i) {
190 print "opcode.h>> $_" if $debug > 2;
191 if (/^OP \*\s/) { &scan_func($_); }
192 if (/^\s*EXT/) { &scan_var($_); }
193 last LINE unless defined($_ = <CPP>);
195 # Check for transition to new header file
196 if (/^# \d+ "(\S+)"/) {
198 # Pull name from library module or header filespec
199 $spec =~ /^(\w+)$/ or $spec =~ /(\w+)\.h/i;
201 $ckfunc = exists $checkh{$name} ? 1 : 0;
202 $scanname = $name if $ckfunc;
203 print "Header file transition: ckfunc = $ckfunc for $name.h\n" if $debug > 1;
206 print "$scanname>> $_" if $debug > 2;
207 if (/\s*^EXT/) { &scan_var($_); }
208 else { &scan_func($_); }
211 print $_ if $debug > 3 && ($debug > 5 || length($_));
212 if (/^\s*EXT/) { &scan_var($_); }
221 ($key,$array) = split('=',$_);
222 if ($array eq 'vars') { $key = "PL_$key"; }
223 else { $key = "Perl_$key"; }
224 print "Adding $key to \%$array list\n" if $debug > 1;
227 if ($debugging_enabled and $isgcc) { $vars{'colors'}++ }
228 foreach (split /\s+/, $extnames) {
230 $pkgname =~ s/::/__/g;
231 $fcns{"boot_$pkgname"}++;
232 print "Adding boot_$pkgname to \%fcns (for extension $_)\n" if $debug;
235 # Eventually, we'll check against existing copies here, so we can add new
236 # symbols to an existing options file in an upwardly-compatible manner.
239 open(OPTBLD,">${dir}${dbgprefix}perlshr_bld.opt")
240 or die "$0: Can't write to ${dir}${dbgprefix}perlshr_bld.opt: $!\n";
242 open(MAR,">${dir}perlshr_gbl${marord}.mar")
243 or die "$0: Can't write to ${dir}perlshr_gbl${marord}.mar: $!\n";
244 print MAR "\t.title perlshr_gbl$marord\n";
248 print OPTBLD "PSECT_ATTR=\$GLOBAL_RO_VARS,PIC,NOEXE,RD,NOWRT,SHR\n";
249 print OPTBLD "PSECT_ATTR=\$GLOBAL_RW_VARS,PIC,NOEXE,RD,WRT,NOSHR\n";
251 print OPTBLD "case_sensitive=yes\n" if $care_about_case;
252 foreach $var (sort (keys %vars,keys %cvars)) {
253 if ($isvax) { print OPTBLD "UNIVERSAL=$var\n"; }
254 else { print OPTBLD "SYMBOL_VECTOR=($var=DATA)\n"; }
255 # This hack brought to you by the lack of a globaldef in gcc.
257 if ($count++ > 200) { # max 254 psects/file
258 print MAR "\t.end\n";
261 open(MAR,">${dir}perlshr_gbl${marord}.mar")
262 or die "$0: Can't write to ${dir}perlshr_gbl${marord}.mar: $!\n";
263 print MAR "\t.title perlshr_gbl$marord\n";
266 print MAR "\t.psect ${var},long,pic,ovr,rd,wrt,noexe,noshr\n";
267 print MAR "\t${var}:: .blkl 1\n";
271 print MAR "\t.psect \$transfer_vec,pic,rd,nowrt,exe,shr\n" if ($isvax);
272 foreach $func (sort keys %fcns) {
274 print MAR "\t.transfer $func\n";
275 print MAR "\t.mask $func\n";
276 print MAR "\tjmp G\^${func}+2\n";
278 else { print OPTBLD "SYMBOL_VECTOR=($func=PROCEDURE)\n"; }
281 print MAR "\t.end\n";
285 open(OPTATTR,">${dir}perlshr_attr.opt")
286 or die "$0: Can't write to ${dir}perlshr_attr.opt: $!\n";
288 foreach $var (sort keys %cvars) {
289 print OPTATTR "PSECT_ATTR=${var},PIC,OVR,RD,NOEXE,NOWRT,SHR\n";
291 foreach $var (sort keys %vars) {
292 print OPTATTR "PSECT_ATTR=${var},PIC,OVR,RD,NOEXE,WRT,NOSHR\n";
296 print OPTATTR "! No additional linker directives are needed when using DECC\n";
300 $incstr = 'PERL,GLOBALS';
302 $drvrname = "Compile_shrmars.tmp_".time;
303 open (DRVR,">$drvrname") or die "$0: Can't write to $drvrname: $!\n";
304 print DRVR "\$ Set NoOn\n";
305 print DRVR "\$ Delete/NoLog/NoConfirm $drvrname;\n";
306 print DRVR "\$ old_proc_vfy = F\$Environment(\"VERIFY_PROCEDURE\")\n";
307 print DRVR "\$ old_img_vfy = F\$Environment(\"VERIFY_IMAGE\")\n";
308 print DRVR "\$ MCR $^X -e \"\$ENV{'LIBPERL_RDT'} = (stat('$libperl'))[9]\"\n";
309 print DRVR "\$ Set Verify\n";
310 print DRVR "\$ If F\$Search(\"$libperl\").eqs.\"\" Then Library/Object/Create $libperl\n";
312 push(@symfiles,"perlshr_gbl$marord");
313 print DRVR "\$ Macro/NoDebug/Object=PerlShr_Gbl${marord}$objsuffix PerlShr_Gbl$marord.Mar\n";
314 print DRVR "\$ Library/Object/Replace/Log $libperl PerlShr_Gbl${marord}$objsuffix\n";
316 # We had to have a working miniperl to run this program; it's probably the
317 # one we just built. It depended on LibPerl, which will be changed when
318 # the PerlShr_Gbl* modules get inserted, so miniperl will be out of date,
319 # and so, therefore, will all of its dependents . . .
320 # We touch LibPerl here so it'll be back 'in date', and we won't rebuild
321 # miniperl etc., and therefore LibPerl, the next time we invoke MM[KS].
322 print DRVR "\$ old_proc_vfy = F\$Verify(old_proc_vfy,old_img_vfy)\n";
323 print DRVR "\$ MCR $^X -e \"utime 0, \$ENV{'LIBPERL_RDT'}, '$libperl'\"\n";
327 # Initial hack to permit building of compatible shareable images for a
328 # given version of Perl.
329 if ($ENV{PERLSHR_USE_GSMATCH}) {
330 if ($ENV{PERLSHR_USE_GSMATCH} eq 'INCLUDE_COMPILE_OPTIONS') {
331 # Build up a major ID. Since it can only be 8 bits, we encode the version
332 # number in the top four bits and use the bottom four for build options
333 # that'll cause incompatibilities
334 ($ver, $sub) = $] =~ /\.(\d\d\d)(\d\d)/;
335 $ver += 0; $sub += 0;
336 $gsmatch = ($sub >= 50) ? "equal" : "lequal"; # Force an equal match for
337 # dev, but be more forgiving
341 $ver += 8 if $debugging_enabled; # If DEBUGGING is set
342 $ver += 4 if $use_threads; # if we're threaded
343 $ver += 2 if $use_mymalloc; # if we're using perl's malloc
344 print OPTBLD "GSMATCH=$gsmatch,$ver,$sub\n";
347 my $major = int($] * 1000) & 0xFF; # range 0..255
348 my $minor = int(($] * 1000 - $major) * 100 + 0.5) & 0xFF; # range 0..255
349 print OPTBLD "GSMATCH=LEQUAL,$major,$minor\n";
351 print OPTBLD 'CLUSTER=$$TRANSFER_VECTOR,,',
352 map(",$_$objsuffix",@symfiles), "\n";
354 elsif (@symfiles) { $incstr .= ',' . join(',',@symfiles); }
355 # Include object modules and RTLs in options file
356 # Linker wants /Include and /Library on different lines
357 print OPTBLD "$libperl/Include=($incstr)\n";
358 print OPTBLD "$libperl/Library\n";
359 open(RTLOPT,$rtlopt) or die "$0: Can't read options file $rtlopt: $!\n";
360 while (<RTLOPT>) { print OPTBLD; }
364 exec "\$ \@$drvrname" if $isvax;
369 # Oddball cases, so we can keep the perl.h scan above simple
370 regkind=vars # declared in regcomp.h
371 simple=vars # declared in regcomp.h
372 varies=vars # declared in regcomp.h