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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. |
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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 |
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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. |
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20 | # PerlShr_Bld.Opt - declares universal symbols for PerlShr.Exe |
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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 |
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37 | # Revised: 28-May-1995 |
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38 | |
39 | require 5.000; |
40 | |
41 | $debug = $ENV{'GEN_SHRFLS_DEBUG'}; |
42 | $cc_cmd = shift @ARGV; |
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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 $debug; |
47 | |
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48 | print "Input \$cc_cmd: \\$cc_cmd\\\n" if $debug; |
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49 | $docc = ($cc_cmd !~ /^~~/); |
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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 | |
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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 |
68 | $isvaxc = (!$isgcc && $isvax && `$cc_cmd /ansi_alias _nla0:` =~ /IVQUAL/) |
69 | or 0; # again, make debug output nice |
70 | print "\$isgcc: $isgcc\n" if $debug; |
71 | print "\$isvaxc: $isvaxc\n" if $debug; |
72 | |
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73 | if (-f 'perl.h') { $dir = '[]'; } |
74 | elsif (-f '[-]perl.h') { $dir = '[-]'; } |
75 | else { die "$0: Can't find perl.h\n"; } |
76 | } |
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77 | else { |
78 | ($ccvers,$cpp_file) = ($cc_cmd =~ /^~~(\w+)~~(.*)/); |
79 | $isgcc = $ccvers =~ /GCC/ |
80 | or 0; # for nice debug output |
81 | $isvaxc = (!$isgcc && $ccvers =~ /VAXC/) |
82 | or 0; # again, for nice debug output |
83 | print "\$isgcc: \\$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 | } |
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87 | |
88 | $objsuffix = shift @ARGV; |
89 | print "\$objsuffix: \\$objsuffix\\\n" if $debug; |
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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 $debug; |
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99 | |
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100 | # This part gets tricky. VAXC creates creating global symbols for the |
101 | # constants in an enum if that enum is ever used as the data type of a |
102 | # global[dr]ef. We have to detect enums which are used in this way, so we |
103 | # can set up the constants as universal symbols, since anything which |
104 | # #includes perl.h will want to resolve these global symbols. |
105 | # We're using a weak test here - we basically know that the only enums |
106 | # we need to handle now are the big one in opcode.h, and the |
107 | # "typedef enum { ... } expectation" in perl.h, so we hard code |
108 | # appropriate tests below. Since we can't know in general whether a given |
109 | # enum will be used elsewhere in a globaldef, it's hard to decide a |
110 | # priori whether its constants need to be treated as global symbols. |
111 | sub scan_enum { |
112 | my($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+)$/) { |
122 | print "\tvar name is \\$1\\\n" if $debug > 1; |
123 | $vars{$1}++; |
124 | } |
125 | } |
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126 | |
127 | sub scan_var { |
128 | my($line) = @_; |
129 | |
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130 | print "\tchecking for global variable\n" if $debug > 1; |
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131 | $line =~ s/INIT\(.*\)//; |
132 | $line =~ s/\[.*//; |
133 | $line =~ s/=.*//; |
134 | $line =~ s/\W*;?\s*$//; |
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135 | print "\tfiltered to \\$line\\\n" if $debug > 1; |
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136 | if ($line =~ /(\w+)$/) { |
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137 | print "\tvar name is \\$1\\\n" if $debug > 1; |
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138 | $vars{$1}++; |
139 | } |
140 | } |
141 | |
142 | sub scan_func { |
143 | my($line) = @_; |
144 | |
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145 | print "\tchecking for global routine\n" if $debug > 1; |
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146 | if ( /(\w+)\s+\(/ ) { |
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147 | print "\troutine name is \\$1\\\n" if $debug > 1; |
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148 | if ($1 eq 'main' || $1 eq 'perl_init_ext') { |
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149 | print "\tskipped\n" if $debug > 1; |
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150 | } |
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151 | else { $fcns{$1}++ } |
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152 | } |
153 | } |
154 | |
155 | if ($docc) { |
156 | open(CPP,"${cc_cmd}/NoObj/PreProc=Sys\$Output ${dir}perl.h|") |
157 | or die "$0: Can't preprocess ${dir}perl.h: $!\n"; |
158 | } |
159 | else { |
160 | open(CPP,"$cpp_file") or die "$0: Can't read $cpp_file: $!\n"; |
161 | } |
162 | LINE: while (<CPP>) { |
163 | while (/^#.*vmsish\.h/i .. /^#.*perl\.h/i) { |
164 | while (/__VMS_PROTOTYPES__/i .. /__VMS_SEPYTOTORP__/i) { |
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165 | print "vms_proto>> $_" if $debug > 2; |
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166 | &scan_func($_); |
167 | if (/^EXT/) { &scan_var($_); } |
168 | last LINE unless $_ = <CPP>; |
169 | } |
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170 | print "vmsish.h>> $_" if $debug > 2; |
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171 | if (/^EXT/) { &scan_var($_); } |
172 | last LINE unless $_ = <CPP>; |
173 | } |
174 | while (/^#.*opcode\.h/i .. /^#.*perl\.h/i) { |
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175 | print "opcode.h>> $_" if $debug > 2; |
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176 | if (/^OP \*\s/) { &scan_func($_); } |
177 | if (/^EXT/) { &scan_var($_); } |
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178 | if (/^\s+OP_/) { &scan_enum($_); } |
179 | last LINE unless $_ = <CPP>; |
180 | } |
181 | while (/^typedef enum/ .. /^\}/) { |
182 | print "global enum>> $_" if $debug > 2; |
183 | &scan_enum($_); |
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184 | last LINE unless $_ = <CPP>; |
185 | } |
186 | while (/^#.*proto\.h/i .. /^#.*perl\.h/i) { |
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187 | print "proto.h>> $_" if $debug > 2; |
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188 | &scan_func($_); |
189 | if (/^EXT/) { &scan_var($_); } |
190 | last LINE unless $_ = <CPP>; |
191 | } |
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192 | print $_ if $debug > 3; |
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193 | if (/^EXT/) { &scan_var($_); } |
194 | } |
195 | close CPP; |
196 | while (<DATA>) { |
197 | next if /^#/; |
198 | s/\s+#.*\n//; |
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199 | next if /^\s*$/; |
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200 | ($key,$array) = split('=',$_); |
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201 | print "Adding $key to \%$array list\n" if $debug > 1; |
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202 | ${$array}{$key}++; |
203 | } |
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204 | foreach (split /\s+/, $extnames) { |
205 | my($pkgname) = $_; |
206 | $pkgname =~ s/::/__/g; |
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207 | $fcns{"boot_$pkgname"}++; |
208 | print "Adding boot_$pkgname to \%fcns (for extension $_)\n" if $debug; |
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209 | } |
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210 | |
211 | # Eventually, we'll check against existing copies here, so we can add new |
212 | # symbols to an existing options file in an upwardly-compatible manner. |
213 | |
214 | $marord++; |
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215 | open(OPTBLD,">${dir}${dbgprefix}perlshr_bld.opt") |
216 | or die "$0: Can't write to ${dir}${dbgprefix}perlshr_bld.opt: $!\n"; |
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217 | if ($isvax) { |
218 | open(MAR,">${dir}perlshr_gbl${marord}.mar") |
219 | or die "$0: Can't write to ${dir}perlshr_gbl${marord}.mar: $!\n"; |
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220 | print MAR "\t.title perlshr_gbl$marord\n"; |
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221 | } |
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222 | foreach $var (sort keys %vars) { |
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223 | if ($isvax) { print OPTBLD "UNIVERSAL=$var\n"; } |
224 | else { print OPTBLD "SYMBOL_VECTOR=($var=DATA)\n"; } |
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225 | # This hack brought to you by the lack of a globaldef in gcc. |
226 | if ($isgcc) { |
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227 | if ($count++ > 200) { # max 254 psects/file |
228 | print MAR "\t.end\n"; |
229 | close MAR; |
230 | $marord++; |
231 | open(MAR,">${dir}perlshr_gbl${marord}.mar") |
232 | or die "$0: Can't write to ${dir}perlshr_gbl${marord}.mar: $!\n"; |
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233 | print MAR "\t.title perlshr_gbl$marord\n"; |
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234 | $count = 0; |
235 | } |
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236 | print MAR "\t.psect ${var},long,pic,ovr,rd,wrt,noexe,noshr\n"; |
237 | print MAR "\t${var}:: .blkl 1\n"; |
238 | } |
239 | } |
240 | |
241 | print MAR "\t.psect \$transfer_vec,pic,rd,nowrt,exe,shr\n" if ($isvax); |
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242 | foreach $func (sort keys %fcns) { |
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243 | if ($isvax) { |
244 | print MAR "\t.transfer $func\n"; |
245 | print MAR "\t.mask $func\n"; |
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246 | print MAR "\tjmp G\^${func}+2\n"; |
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247 | } |
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248 | else { print OPTBLD "SYMBOL_VECTOR=($func=PROCEDURE)\n"; } |
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249 | } |
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250 | if ($isvax) { |
251 | print MAR "\t.end\n"; |
252 | close MAR; |
253 | } |
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254 | |
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255 | open(OPTATTR,">${dir}perlshr_attr.opt") |
256 | or die "$0: Can't write to ${dir}perlshr_attr.opt: $!\n"; |
257 | print OPTATTR "PSECT_ATTR=\$CHAR_STRING_CONSTANTS,PIC,SHR,NOEXE,RD,NOWRT\n"; |
258 | foreach $var (sort keys %vars) { |
259 | print OPTATTR "PSECT_ATTR=${var},PIC,OVR,RD,NOEXE,WRT,NOSHR\n"; |
260 | } |
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261 | close OPTATTR; |
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262 | |
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263 | $incstr = 'perl,globals'; |
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264 | if ($isvax) { |
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265 | $drvrname = "Compile_shrmars.tmp_".time; |
266 | open (DRVR,">$drvrname") or die "$0: Can't write to $drvrname: $!\n"; |
267 | print DRVR "\$ Set NoOn\n"; |
268 | print DRVR "\$ Delete/NoLog/NoConfirm $drvrname;\n"; |
269 | print DRVR "\$ old_proc_vfy = F\$Environment(\"VERIFY_PROCEDURE\")\n"; |
270 | print DRVR "\$ old_img_vfy = F\$Environment(\"VERIFY_IMAGE\")\n"; |
748a9306 |
271 | print DRVR "\$ MCR $^X -e \"\$ENV{'LIBPERL_RDT'} = (stat('$libperl'))[9]\"\n"; |
a0d0e21e |
272 | print DRVR "\$ Set Verify\n"; |
748a9306 |
273 | print DRVR "\$ If F\$Search(\"$libperl\").eqs.\"\" Then Library/Object/Create $libperl\n"; |
a0d0e21e |
274 | do { |
748a9306 |
275 | $incstr .= ",perlshr_gbl$marord"; |
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276 | print DRVR "\$ Macro/NoDebug/Object=PerlShr_Gbl${marord}$objsuffix PerlShr_Gbl$marord.Mar\n"; |
748a9306 |
277 | print DRVR "\$ Library/Object/Replace/Log $libperl PerlShr_Gbl${marord}$objsuffix\n"; |
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278 | } while (--$marord); |
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279 | # We had to have a working miniperl to run this program; it's probably the |
280 | # one we just built. It depended on LibPerl, which will be changed when |
281 | # the PerlShr_Gbl* modules get inserted, so miniperl will be out of date, |
282 | # and so, therefore, will all of its dependents . . . |
283 | # We touch LibPerl here so it'll be back 'in date', and we won't rebuild |
284 | # miniperl etc., and therefore LibPerl, the next time we invoke MM[KS]. |
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285 | print DRVR "\$ old_proc_vfy = F\$Verify(old_proc_vfy,old_img_vfy)\n"; |
748a9306 |
286 | print DRVR "\$ MCR $^X -e \"utime 0, \$ENV{'LIBPERL_RDT'}, '$libperl'\"\n"; |
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287 | close DRVR; |
a0d0e21e |
288 | } |
748a9306 |
289 | |
290 | # Include object modules and RTLs in options file |
291 | # Linker wants /Include and /Library on different lines |
292 | print OPTBLD "$libperl/Include=($incstr)\n"; |
293 | print OPTBLD "$libperl/Library\n"; |
294 | open(RTLOPT,$rtlopt) or die "$0: Can't read $rtlopt: $!\n"; |
295 | while (<RTLOPT>) { print OPTBLD; } |
296 | close RTLOPT; |
297 | close OPTBLD; |
298 | |
299 | exec "\$ \@$drvrname" if $isvax; |
300 | |
301 | |
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302 | __END__ |
303 | |
304 | # Oddball cases, so we can keep the perl.h scan above simple |
305 | error=vars # declared in perl.h only when DOINIT defined by INTERN.h |
306 | rcsid=vars # declared in perl.c |
307 | regarglen=vars # declared in regcomp.h |
308 | regdummy=vars # declared in regcomp.h |
309 | regkind=vars # declared in regcomp.h |
310 | simple=vars # declared in regcomp.h |
311 | varies=vars # declared in regcomp.h |
312 | watchaddr=vars # declared in run.c |
313 | watchok=vars # declared in run.c |
314 | yychar=vars # generated by byacc in perly.c |
315 | yycheck=vars # generated by byacc in perly.c |
316 | yydebug=vars # generated by byacc in perly.c |
317 | yydefred=vars # generated by byacc in perly.c |
318 | yydgoto=vars # generated by byacc in perly.c |
319 | yyerrflag=vars # generated by byacc in perly.c |
320 | yygindex=vars # generated by byacc in perly.c |
321 | yylen=vars # generated by byacc in perly.c |
322 | yylhs=vars # generated by byacc in perly.c |
323 | yylval=vars # generated by byacc in perly.c |
324 | yyname=vars # generated by byacc in perly.c |
325 | yynerrs=vars # generated by byacc in perly.c |
326 | yyrindex=vars # generated by byacc in perly.c |
327 | yyrule=vars # generated by byacc in perly.c |
328 | yysindex=vars # generated by byacc in perly.c |
329 | yytable=vars # generated by byacc in perly.c |
330 | yyval=vars # generated by byacc in perly.c |