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 | # | |
36 | # Author: Charles Bailey bailey@genetics.upenn.edu | |
e518068a | 37 | # Revised: 4-Dec-1995 |
a0d0e21e LW |
38 | |
39 | require 5.000; | |
40 | ||
41 | $debug = $ENV{'GEN_SHRFLS_DEBUG'}; | |
42 | $cc_cmd = shift @ARGV; | |
4633a7c4 LW |
43 | |
44 | # Someday, we'll have $GetSyI built into perl . . . | |
45 | $isvax = `\$ Write Sys\$Output F\$GetSyI(\"HW_MODEL\")` <= 1024; | |
46 | print "\$isvax: \\$isvax\\\n" if $debug; | |
47 | ||
a0d0e21e | 48 | print "Input \$cc_cmd: \\$cc_cmd\\\n" if $debug; |
4633a7c4 | 49 | $docc = ($cc_cmd !~ /^~~/); |
a0d0e21e LW |
50 | print "\$docc = $docc\n" if $debug; |
51 | ||
52 | if ($docc) { | |
53 | # put quotes back onto defines - they were removed by DCL on the way in | |
54 | if (($prefix,$defines,$suffix) = | |
55 | ($cc_cmd =~ m#(.*)/Define=(.*?)([/\s].*)#i)) { | |
56 | $defines =~ s/^\((.*)\)$/$1/; | |
57 | @defines = split(/,/,$defines); | |
58 | $cc_cmd = "$prefix/Define=(" . join(',',grep($_ = "\"$_\"",@defines)) | |
59 | . ')' . $suffix; | |
60 | } | |
61 | print "Filtered \$cc_cmd: \\$cc_cmd\\\n" if $debug; | |
62 | ||
4633a7c4 LW |
63 | # check for gcc - if present, we'll need to use MACRO hack to |
64 | # define global symbols for shared variables | |
65 | $isvaxc = 0; | |
66 | $isgcc = `$cc_cmd _nla0:/Version` =~ /GNU/ | |
67 | or 0; # make debug output nice | |
e518068a | 68 | $isvaxc = (!$isgcc && $isvax && `$cc_cmd /prefix=all _nla0:` =~ /IVQUAL/) |
4633a7c4 LW |
69 | or 0; # again, make debug output nice |
70 | print "\$isgcc: $isgcc\n" if $debug; | |
71 | print "\$isvaxc: $isvaxc\n" if $debug; | |
72 | ||
a0d0e21e LW |
73 | if (-f 'perl.h') { $dir = '[]'; } |
74 | elsif (-f '[-]perl.h') { $dir = '[-]'; } | |
75 | else { die "$0: Can't find perl.h\n"; } | |
76 | } | |
4633a7c4 | 77 | else { |
482b294c | 78 | ($junk,$ccvers,$cpp_file,$cc_cmd) = split(/~~/,$cc_cmd,4); |
79 | $isgcc = $cc_cmd =~ /case_hack/i | |
4633a7c4 | 80 | or 0; # for nice debug output |
482b294c | 81 | $isvaxc = (!$isgcc && $cc_cmd !~ /standard=/i) |
4633a7c4 LW |
82 | or 0; # again, for nice debug output |
83 | print "\$isgcc: \\$isgcc\\\n" if $debug; | |
84 | print "\$isvaxc: \\$isvaxc\\\n" if $debug; | |
85 | print "Not running cc, preprocesor output in \\$cpp_file\\\n" if $debug; | |
86 | } | |
a0d0e21e LW |
87 | |
88 | $objsuffix = shift @ARGV; | |
89 | print "\$objsuffix: \\$objsuffix\\\n" if $debug; | |
748a9306 LW |
90 | $dbgprefix = shift @ARGV; |
91 | print "\$dbgprefix: \\$dbgprefix\\\n" if $debug; | |
92 | $olbsuffix = shift @ARGV; | |
93 | print "\$olbsuffix: \\$olbsuffix\\\n" if $debug; | |
94 | $libperl = "${dbgprefix}libperl$olbsuffix"; | |
95 | $extnames = shift @ARGV; | |
96 | print "\$extnames: \\$extnames\\\n" if $debug; | |
97 | $rtlopt = shift @ARGV; | |
98 | print "\$rtlopt: \\$rtlopt\\\n" if $debug; | |
a0d0e21e | 99 | |
e518068a | 100 | # This part gets tricky. VAXC creates global symbols for each of the |
4633a7c4 LW |
101 | # constants in an enum if that enum is ever used as the data type of a |
102 | # global[dr]ef. We have to detect enums which are used in this way, so we | |
103 | # can set up the constants as universal symbols, since anything which | |
104 | # #includes perl.h will want to resolve these global symbols. | |
105 | # We're using a weak test here - we basically know that the only enums | |
106 | # we need to handle now are the big one in opcode.h, and the | |
107 | # "typedef enum { ... } expectation" in perl.h, so we hard code | |
108 | # appropriate tests below. Since we can't know in general whether a given | |
109 | # enum will be used elsewhere in a globaldef, it's hard to decide a | |
110 | # priori whether its constants need to be treated as global symbols. | |
111 | sub scan_enum { | |
112 | my($line) = @_; | |
113 | ||
114 | return unless $isvaxc; | |
115 | ||
116 | return unless /^\s+(OP|X)/; # we only want opcode and expectation enums | |
117 | print "\tchecking for enum constant\n" if $debug > 1; | |
118 | $line =~ s#/\*.+##; | |
119 | $line =~ s/,?\s*\n?$//; | |
120 | print "\tfiltered to \\$line\\\n" if $debug > 1; | |
121 | if ($line =~ /(\w+)$/) { | |
c07a80fd | 122 | print "\tconstant name is \\$1\\\n" if $debug > 1; |
123 | $enums{$1}++; | |
4633a7c4 LW |
124 | } |
125 | } | |
a0d0e21e LW |
126 | |
127 | sub scan_var { | |
128 | my($line) = @_; | |
129 | ||
748a9306 | 130 | print "\tchecking for global variable\n" if $debug > 1; |
a0d0e21e LW |
131 | $line =~ s/INIT\(.*\)//; |
132 | $line =~ s/\[.*//; | |
133 | $line =~ s/=.*//; | |
134 | $line =~ s/\W*;?\s*$//; | |
748a9306 | 135 | print "\tfiltered to \\$line\\\n" if $debug > 1; |
a0d0e21e | 136 | if ($line =~ /(\w+)$/) { |
748a9306 | 137 | print "\tvar name is \\$1\\\n" if $debug > 1; |
a0d0e21e LW |
138 | $vars{$1}++; |
139 | } | |
140 | } | |
141 | ||
142 | sub scan_func { | |
143 | my($line) = @_; | |
144 | ||
748a9306 | 145 | print "\tchecking for global routine\n" if $debug > 1; |
a0d0e21e | 146 | if ( /(\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 | } |
4633a7c4 | 151 | else { $fcns{$1}++ } |
a0d0e21e LW |
152 | } |
153 | } | |
154 | ||
c07a80fd | 155 | $used_expectation_enum = $used_opcode_enum = 0; # avoid warnings |
a0d0e21e LW |
156 | if ($docc) { |
157 | open(CPP,"${cc_cmd}/NoObj/PreProc=Sys\$Output ${dir}perl.h|") | |
158 | or die "$0: Can't preprocess ${dir}perl.h: $!\n"; | |
159 | } | |
160 | else { | |
161 | open(CPP,"$cpp_file") or die "$0: Can't read $cpp_file: $!\n"; | |
162 | } | |
163 | LINE: while (<CPP>) { | |
164 | while (/^#.*vmsish\.h/i .. /^#.*perl\.h/i) { | |
165 | while (/__VMS_PROTOTYPES__/i .. /__VMS_SEPYTOTORP__/i) { | |
748a9306 | 166 | print "vms_proto>> $_" if $debug > 2; |
a0d0e21e LW |
167 | &scan_func($_); |
168 | if (/^EXT/) { &scan_var($_); } | |
169 | last LINE unless $_ = <CPP>; | |
170 | } | |
748a9306 | 171 | print "vmsish.h>> $_" if $debug > 2; |
a0d0e21e LW |
172 | if (/^EXT/) { &scan_var($_); } |
173 | last LINE unless $_ = <CPP>; | |
174 | } | |
175 | while (/^#.*opcode\.h/i .. /^#.*perl\.h/i) { | |
748a9306 | 176 | print "opcode.h>> $_" if $debug > 2; |
a0d0e21e LW |
177 | if (/^OP \*\s/) { &scan_func($_); } |
178 | if (/^EXT/) { &scan_var($_); } | |
4633a7c4 LW |
179 | if (/^\s+OP_/) { &scan_enum($_); } |
180 | last LINE unless $_ = <CPP>; | |
181 | } | |
182 | while (/^typedef enum/ .. /^\}/) { | |
183 | print "global enum>> $_" if $debug > 2; | |
184 | &scan_enum($_); | |
a0d0e21e LW |
185 | last LINE unless $_ = <CPP>; |
186 | } | |
187 | while (/^#.*proto\.h/i .. /^#.*perl\.h/i) { | |
748a9306 | 188 | print "proto.h>> $_" if $debug > 2; |
a0d0e21e LW |
189 | &scan_func($_); |
190 | if (/^EXT/) { &scan_var($_); } | |
191 | last LINE unless $_ = <CPP>; | |
192 | } | |
748a9306 | 193 | print $_ if $debug > 3; |
c07a80fd | 194 | if (($type) = /^EXT\s+(\w+)/) { |
195 | if ($isvaxc) { | |
196 | if ($type eq 'expectation') { | |
197 | $used_expectation_enum++; | |
198 | print "\tsaw global use of enum \"expectation\"\n" if $debug > 1; | |
199 | } | |
200 | if ($type eq 'opcode') { | |
201 | $used_opcode_enum++; | |
202 | print "\tsaw global use of enum \"opcode\"\n" if $debug > 1; | |
203 | } | |
204 | } | |
205 | &scan_var($_); | |
206 | } | |
a0d0e21e LW |
207 | } |
208 | close CPP; | |
209 | while (<DATA>) { | |
210 | next if /^#/; | |
211 | s/\s+#.*\n//; | |
4633a7c4 | 212 | next if /^\s*$/; |
a0d0e21e | 213 | ($key,$array) = split('=',$_); |
748a9306 | 214 | print "Adding $key to \%$array list\n" if $debug > 1; |
a0d0e21e LW |
215 | ${$array}{$key}++; |
216 | } | |
748a9306 LW |
217 | foreach (split /\s+/, $extnames) { |
218 | my($pkgname) = $_; | |
219 | $pkgname =~ s/::/__/g; | |
4633a7c4 LW |
220 | $fcns{"boot_$pkgname"}++; |
221 | print "Adding boot_$pkgname to \%fcns (for extension $_)\n" if $debug; | |
748a9306 | 222 | } |
a0d0e21e | 223 | |
c07a80fd | 224 | # If we're using VAXC, fold in the names of the constants for enums |
225 | # we've seen as the type of global vars. | |
226 | if ($isvaxc) { | |
227 | foreach (keys %enums) { | |
228 | if (/^OP/) { | |
229 | $vars{$_}++ if $used_opcode_enum; | |
230 | next; | |
231 | } | |
232 | if (/^X/) { | |
233 | $vars{$_}++ if $used_expectation_enum; | |
234 | next; | |
235 | } | |
236 | print STDERR "Unrecognized enum constant \"$_\" ignored\n"; | |
237 | } | |
238 | } | |
239 | ||
a0d0e21e LW |
240 | # Eventually, we'll check against existing copies here, so we can add new |
241 | # symbols to an existing options file in an upwardly-compatible manner. | |
242 | ||
243 | $marord++; | |
748a9306 LW |
244 | open(OPTBLD,">${dir}${dbgprefix}perlshr_bld.opt") |
245 | or die "$0: Can't write to ${dir}${dbgprefix}perlshr_bld.opt: $!\n"; | |
a0d0e21e LW |
246 | if ($isvax) { |
247 | open(MAR,">${dir}perlshr_gbl${marord}.mar") | |
248 | or die "$0: Can't write to ${dir}perlshr_gbl${marord}.mar: $!\n"; | |
748a9306 | 249 | print MAR "\t.title perlshr_gbl$marord\n"; |
a0d0e21e | 250 | } |
a0d0e21e | 251 | foreach $var (sort keys %vars) { |
748a9306 LW |
252 | if ($isvax) { print OPTBLD "UNIVERSAL=$var\n"; } |
253 | else { print OPTBLD "SYMBOL_VECTOR=($var=DATA)\n"; } | |
4633a7c4 LW |
254 | # This hack brought to you by the lack of a globaldef in gcc. |
255 | if ($isgcc) { | |
a0d0e21e LW |
256 | if ($count++ > 200) { # max 254 psects/file |
257 | print MAR "\t.end\n"; | |
258 | close MAR; | |
259 | $marord++; | |
260 | open(MAR,">${dir}perlshr_gbl${marord}.mar") | |
261 | or die "$0: Can't write to ${dir}perlshr_gbl${marord}.mar: $!\n"; | |
748a9306 | 262 | print MAR "\t.title perlshr_gbl$marord\n"; |
a0d0e21e LW |
263 | $count = 0; |
264 | } | |
a0d0e21e LW |
265 | print MAR "\t.psect ${var},long,pic,ovr,rd,wrt,noexe,noshr\n"; |
266 | print MAR "\t${var}:: .blkl 1\n"; | |
267 | } | |
268 | } | |
269 | ||
270 | print MAR "\t.psect \$transfer_vec,pic,rd,nowrt,exe,shr\n" if ($isvax); | |
4633a7c4 | 271 | foreach $func (sort keys %fcns) { |
a0d0e21e LW |
272 | if ($isvax) { |
273 | print MAR "\t.transfer $func\n"; | |
274 | print MAR "\t.mask $func\n"; | |
4633a7c4 | 275 | print MAR "\tjmp G\^${func}+2\n"; |
a0d0e21e | 276 | } |
748a9306 | 277 | else { print OPTBLD "SYMBOL_VECTOR=($func=PROCEDURE)\n"; } |
a0d0e21e | 278 | } |
4633a7c4 LW |
279 | if ($isvax) { |
280 | print MAR "\t.end\n"; | |
281 | close MAR; | |
282 | } | |
a0d0e21e | 283 | |
4633a7c4 LW |
284 | open(OPTATTR,">${dir}perlshr_attr.opt") |
285 | or die "$0: Can't write to ${dir}perlshr_attr.opt: $!\n"; | |
286 | print OPTATTR "PSECT_ATTR=\$CHAR_STRING_CONSTANTS,PIC,SHR,NOEXE,RD,NOWRT\n"; | |
287 | foreach $var (sort keys %vars) { | |
288 | print OPTATTR "PSECT_ATTR=${var},PIC,OVR,RD,NOEXE,WRT,NOSHR\n"; | |
289 | } | |
a0d0e21e | 290 | close OPTATTR; |
4633a7c4 | 291 | |
748a9306 | 292 | $incstr = 'perl,globals'; |
a0d0e21e | 293 | if ($isvax) { |
a0d0e21e LW |
294 | $drvrname = "Compile_shrmars.tmp_".time; |
295 | open (DRVR,">$drvrname") or die "$0: Can't write to $drvrname: $!\n"; | |
296 | print DRVR "\$ Set NoOn\n"; | |
297 | print DRVR "\$ Delete/NoLog/NoConfirm $drvrname;\n"; | |
298 | print DRVR "\$ old_proc_vfy = F\$Environment(\"VERIFY_PROCEDURE\")\n"; | |
299 | print DRVR "\$ old_img_vfy = F\$Environment(\"VERIFY_IMAGE\")\n"; | |
748a9306 | 300 | print DRVR "\$ MCR $^X -e \"\$ENV{'LIBPERL_RDT'} = (stat('$libperl'))[9]\"\n"; |
a0d0e21e | 301 | print DRVR "\$ Set Verify\n"; |
748a9306 | 302 | print DRVR "\$ If F\$Search(\"$libperl\").eqs.\"\" Then Library/Object/Create $libperl\n"; |
a0d0e21e | 303 | do { |
748a9306 | 304 | $incstr .= ",perlshr_gbl$marord"; |
a0d0e21e | 305 | print DRVR "\$ Macro/NoDebug/Object=PerlShr_Gbl${marord}$objsuffix PerlShr_Gbl$marord.Mar\n"; |
748a9306 | 306 | print DRVR "\$ Library/Object/Replace/Log $libperl PerlShr_Gbl${marord}$objsuffix\n"; |
a0d0e21e | 307 | } while (--$marord); |
748a9306 LW |
308 | # We had to have a working miniperl to run this program; it's probably the |
309 | # one we just built. It depended on LibPerl, which will be changed when | |
310 | # the PerlShr_Gbl* modules get inserted, so miniperl will be out of date, | |
311 | # and so, therefore, will all of its dependents . . . | |
312 | # We touch LibPerl here so it'll be back 'in date', and we won't rebuild | |
313 | # miniperl etc., and therefore LibPerl, the next time we invoke MM[KS]. | |
a0d0e21e | 314 | print DRVR "\$ old_proc_vfy = F\$Verify(old_proc_vfy,old_img_vfy)\n"; |
748a9306 | 315 | print DRVR "\$ MCR $^X -e \"utime 0, \$ENV{'LIBPERL_RDT'}, '$libperl'\"\n"; |
a0d0e21e | 316 | close DRVR; |
a0d0e21e | 317 | } |
748a9306 LW |
318 | |
319 | # Include object modules and RTLs in options file | |
320 | # Linker wants /Include and /Library on different lines | |
321 | print OPTBLD "$libperl/Include=($incstr)\n"; | |
322 | print OPTBLD "$libperl/Library\n"; | |
323 | open(RTLOPT,$rtlopt) or die "$0: Can't read $rtlopt: $!\n"; | |
324 | while (<RTLOPT>) { print OPTBLD; } | |
325 | close RTLOPT; | |
326 | close OPTBLD; | |
327 | ||
328 | exec "\$ \@$drvrname" if $isvax; | |
329 | ||
330 | ||
a0d0e21e LW |
331 | __END__ |
332 | ||
333 | # Oddball cases, so we can keep the perl.h scan above simple | |
334 | error=vars # declared in perl.h only when DOINIT defined by INTERN.h | |
335 | rcsid=vars # declared in perl.c | |
336 | regarglen=vars # declared in regcomp.h | |
337 | regdummy=vars # declared in regcomp.h | |
338 | regkind=vars # declared in regcomp.h | |
339 | simple=vars # declared in regcomp.h | |
340 | varies=vars # declared in regcomp.h | |
341 | watchaddr=vars # declared in run.c | |
342 | watchok=vars # declared in run.c | |
343 | yychar=vars # generated by byacc in perly.c | |
344 | yycheck=vars # generated by byacc in perly.c | |
345 | yydebug=vars # generated by byacc in perly.c | |
346 | yydefred=vars # generated by byacc in perly.c | |
347 | yydgoto=vars # generated by byacc in perly.c | |
348 | yyerrflag=vars # generated by byacc in perly.c | |
349 | yygindex=vars # generated by byacc in perly.c | |
350 | yylen=vars # generated by byacc in perly.c | |
351 | yylhs=vars # generated by byacc in perly.c | |
352 | yylval=vars # generated by byacc in perly.c | |
353 | yyname=vars # generated by byacc in perly.c | |
354 | yynerrs=vars # generated by byacc in perly.c | |
355 | yyrindex=vars # generated by byacc in perly.c | |
356 | yyrule=vars # generated by byacc in perly.c | |
357 | yysindex=vars # generated by byacc in perly.c | |
358 | yytable=vars # generated by byacc in perly.c | |
359 | yyval=vars # generated by byacc in perly.c |