Commit | Line | Data |
---|---|---|
5f05dabc | 1 | #!/usr/bin/perl -w |
e50aee73 | 2 | |
5f05dabc | 3 | require 5.003; |
4 | ||
5 | sub readsyms (\%$) { | |
6 | my ($syms, $file) = @_; | |
7 | %$syms = (); | |
8 | local (*FILE, $_); | |
9 | open(FILE, "< $file") | |
10 | or die "embed.pl: Can't open $file: $!\n"; | |
11 | while (<FILE>) { | |
12 | s/[ \t]*#.*//; # Delete comments. | |
13 | if (/^\s*(\S+)\s*$/) { | |
14 | $$syms{$1} = 1; | |
15 | } | |
16 | } | |
17 | close(FILE); | |
18 | } | |
19 | ||
20 | readsyms %global, 'global.sym'; | |
21 | readsyms %interp, 'interp.sym'; | |
5f05dabc | 22 | |
d4cce5f1 NIS |
23 | sub readvars(\%$$) { |
24 | my ($syms, $file,$pre) = @_; | |
25 | %$syms = (); | |
26 | local (*FILE, $_); | |
27 | open(FILE, "< $file") | |
28 | or die "embed.pl: Can't open $file: $!\n"; | |
29 | while (<FILE>) { | |
30 | s/[ \t]*#.*//; # Delete comments. | |
3fe35a81 | 31 | if (/PERLVARI?C?\($pre(\w+)/) { |
22239a37 | 32 | $$syms{$1} = 1; |
d4cce5f1 NIS |
33 | } |
34 | } | |
35 | close(FILE); | |
36 | } | |
37 | ||
38 | my %intrp; | |
39 | my %thread; | |
40 | ||
41 | readvars %intrp, 'intrpvar.h','I'; | |
42 | readvars %thread, 'thrdvar.h','T'; | |
22239a37 | 43 | readvars %globvar, 'perlvars.h','G'; |
d4cce5f1 NIS |
44 | |
45 | foreach my $sym (sort keys %intrp) | |
46 | { | |
47 | warn "$sym not in interp.sym\n" unless exists $interp{$sym}; | |
48 | if (exists $global{$sym}) | |
49 | { | |
50 | delete $global{$sym}; | |
51 | warn "$sym in global.sym as well as interp\n"; | |
52 | } | |
53 | } | |
54 | ||
22239a37 NIS |
55 | foreach my $sym (sort keys %globvar) |
56 | { | |
57 | if (exists $global{$sym}) | |
58 | { | |
59 | delete $global{$sym}; | |
60 | warn "$sym in global.sym as well as perlvars.h\n"; | |
61 | } | |
62 | } | |
63 | ||
d4cce5f1 NIS |
64 | foreach my $sym (keys %interp) |
65 | { | |
66 | warn "extra $sym in interp.sym\n" | |
67 | unless exists $intrp{$sym} || exists $thread{$sym}; | |
68 | } | |
69 | ||
70 | foreach my $sym (sort keys %thread) | |
71 | { | |
72 | warn "$sym in intrpvar.h\n" if exists $intrp{$sym}; | |
73 | if (exists $global{$sym}) | |
74 | { | |
75 | delete $global{$sym}; | |
76 | warn "$sym in global.sym as well as thread\n"; | |
77 | } | |
78 | } | |
79 | ||
5f05dabc | 80 | sub hide ($$) { |
81 | my ($from, $to) = @_; | |
82 | my $t = int(length($from) / 8); | |
83 | "#define $from" . "\t" x ($t < 3 ? 3 - $t : 1) . "$to\n"; | |
84 | } | |
85 | sub embed ($) { | |
86 | my ($sym) = @_; | |
87 | hide($sym, "Perl_$sym"); | |
88 | } | |
d4cce5f1 NIS |
89 | sub multon ($$$) { |
90 | my ($sym,$pre,$ptr) = @_; | |
22239a37 | 91 | hide($sym, "($ptr$pre$sym)"); |
5f05dabc | 92 | } |
d4cce5f1 NIS |
93 | sub multoff ($$) { |
94 | my ($sym,$pre) = @_; | |
95 | hide("$pre$sym", $sym); | |
5f05dabc | 96 | } |
97 | ||
98 | unlink 'embed.h'; | |
99 | open(EM, '> embed.h') | |
100 | or die "Can't create embed.h: $!\n"; | |
e50aee73 AD |
101 | |
102 | print EM <<'END'; | |
76b72cf1 | 103 | /* !!!!!!! DO NOT EDIT THIS FILE !!!!!!! |
d4cce5f1 NIS |
104 | This file is built by embed.pl from global.sym, intrpvar.h, |
105 | and thrdvar.h. Any changes made here will be lost! | |
76b72cf1 | 106 | */ |
e50aee73 AD |
107 | |
108 | /* (Doing namespace management portably in C is really gross.) */ | |
109 | ||
820c3be9 | 110 | /* EMBED has no run-time penalty, but helps keep the Perl namespace |
111 | from colliding with that used by other libraries pulled in | |
112 | by extensions or by embedding perl. Allow a cc -DNO_EMBED | |
113 | override, however, to keep binary compatability with previous | |
114 | versions of perl. | |
115 | */ | |
116 | #ifndef NO_EMBED | |
117 | # define EMBED 1 | |
118 | #endif | |
119 | ||
5f05dabc | 120 | /* Hide global symbols? */ |
121 | ||
e50aee73 AD |
122 | #ifdef EMBED |
123 | ||
e50aee73 AD |
124 | END |
125 | ||
5f05dabc | 126 | for $sym (sort keys %global) { |
dc86dda3 | 127 | print EM embed($sym); |
e50aee73 AD |
128 | } |
129 | ||
e50aee73 AD |
130 | print EM <<'END'; |
131 | ||
132 | #endif /* EMBED */ | |
133 | ||
d4cce5f1 NIS |
134 | END |
135 | ||
136 | close(EM); | |
137 | ||
138 | unlink 'embedvar.h'; | |
139 | open(EM, '> embedvar.h') | |
140 | or die "Can't create embedvar.h: $!\n"; | |
141 | ||
142 | print EM <<'END'; | |
143 | /* !!!!!!! DO NOT EDIT THIS FILE !!!!!!! | |
144 | This file is built by embed.pl from global.sym, intrpvar.h, | |
145 | and thrdvar.h. Any changes made here will be lost! | |
146 | */ | |
147 | ||
148 | /* (Doing namespace management portably in C is really gross.) */ | |
149 | ||
150 | /* EMBED has no run-time penalty, but helps keep the Perl namespace | |
151 | from colliding with that used by other libraries pulled in | |
152 | by extensions or by embedding perl. Allow a cc -DNO_EMBED | |
153 | override, however, to keep binary compatability with previous | |
154 | versions of perl. | |
155 | */ | |
156 | ||
157 | ||
5f05dabc | 158 | /* Put interpreter-specific symbols into a struct? */ |
e50aee73 AD |
159 | |
160 | #ifdef MULTIPLICITY | |
161 | ||
d4cce5f1 NIS |
162 | #ifndef USE_THREADS |
163 | /* If we do not have threads then per-thread vars are per-interpreter */ | |
164 | ||
e50aee73 AD |
165 | END |
166 | ||
d4cce5f1 | 167 | for $sym (sort keys %thread) { |
22239a37 | 168 | print EM multon($sym,'T','curinterp->'); |
d4cce5f1 NIS |
169 | } |
170 | ||
171 | print EM <<'END'; | |
172 | ||
173 | #endif /* !USE_THREADS */ | |
174 | ||
175 | /* These are always per-interpreter if there is more than one */ | |
176 | ||
177 | END | |
178 | ||
179 | for $sym (sort keys %intrp) { | |
22239a37 | 180 | print EM multon($sym,'I','curinterp->'); |
760ac839 | 181 | } |
760ac839 | 182 | |
55497cff | 183 | print EM <<'END'; |
184 | ||
5f05dabc | 185 | #else /* !MULTIPLICITY */ |
55497cff | 186 | |
187 | END | |
760ac839 | 188 | |
d4cce5f1 NIS |
189 | for $sym (sort keys %intrp) { |
190 | print EM multoff($sym,'I'); | |
e50aee73 | 191 | } |
e50aee73 | 192 | |
56d28764 CS |
193 | print EM <<'END'; |
194 | ||
d4cce5f1 NIS |
195 | #ifndef USE_THREADS |
196 | ||
197 | END | |
198 | ||
199 | for $sym (sort keys %thread) { | |
200 | print EM multoff($sym,'T'); | |
201 | } | |
202 | ||
203 | print EM <<'END'; | |
204 | ||
205 | #endif /* USE_THREADS */ | |
206 | ||
207 | /* Hide what would have been interpreter-specific symbols? */ | |
5f05dabc | 208 | |
56d28764 CS |
209 | #ifdef EMBED |
210 | ||
211 | END | |
e50aee73 | 212 | |
d4cce5f1 NIS |
213 | for $sym (sort keys %intrp) { |
214 | print EM embed($sym); | |
215 | } | |
216 | ||
217 | print EM <<'END'; | |
218 | ||
219 | #ifndef USE_THREADS | |
220 | ||
221 | END | |
222 | ||
223 | for $sym (sort keys %thread) { | |
dc86dda3 | 224 | print EM embed($sym); |
5f05dabc | 225 | } |
226 | ||
227 | print EM <<'END'; | |
228 | ||
d4cce5f1 | 229 | #endif /* USE_THREADS */ |
56d28764 | 230 | #endif /* EMBED */ |
e50aee73 | 231 | #endif /* MULTIPLICITY */ |
d4cce5f1 NIS |
232 | |
233 | /* Now same trickey for per-thread variables */ | |
234 | ||
235 | #ifdef USE_THREADS | |
236 | ||
237 | END | |
238 | ||
239 | for $sym (sort keys %thread) { | |
22239a37 | 240 | print EM multon($sym,'T','thr->'); |
d4cce5f1 NIS |
241 | } |
242 | ||
243 | print EM <<'END'; | |
244 | ||
245 | #endif /* USE_THREADS */ | |
246 | ||
22239a37 NIS |
247 | #ifdef PERL_GLOBAL_STRUCT |
248 | ||
249 | END | |
250 | ||
251 | for $sym (sort keys %globvar) { | |
252 | print EM multon($sym,'G','Perl_Vars.'); | |
253 | } | |
254 | ||
255 | print EM <<'END'; | |
256 | ||
257 | #else /* !PERL_GLOBAL_STRUCT */ | |
258 | ||
259 | END | |
260 | ||
261 | for $sym (sort keys %globvar) { | |
262 | print EM multoff($sym,'G'); | |
263 | } | |
264 | ||
265 | print EM <<'END'; | |
266 | ||
267 | #ifdef EMBED | |
268 | ||
269 | END | |
270 | ||
271 | for $sym (sort keys %globvar) { | |
272 | print EM embed($sym); | |
273 | } | |
274 | ||
275 | print EM <<'END'; | |
276 | ||
277 | #endif /* EMBED */ | |
278 | #endif /* PERL_GLOBAL_STRUCT */ | |
279 | ||
e50aee73 AD |
280 | END |
281 | ||
3fe35a81 | 282 | close(EM); |