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