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 | } | |
3280af22 NIS |
89 | sub embedvar ($) { |
90 | my ($sym) = @_; | |
91 | # hide($sym, "Perl_$sym"); | |
92 | return ''; | |
93 | } | |
94 | ||
d4cce5f1 NIS |
95 | sub multon ($$$) { |
96 | my ($sym,$pre,$ptr) = @_; | |
3280af22 | 97 | hide("PL_$sym", "($ptr$pre$sym)"); |
5f05dabc | 98 | } |
d4cce5f1 NIS |
99 | sub multoff ($$) { |
100 | my ($sym,$pre) = @_; | |
8f872242 NIS |
101 | # hide("$pre$sym", "PL_$sym"); |
102 | return ''; | |
5f05dabc | 103 | } |
104 | ||
105 | unlink 'embed.h'; | |
106 | open(EM, '> embed.h') | |
107 | or die "Can't create embed.h: $!\n"; | |
e50aee73 AD |
108 | |
109 | print EM <<'END'; | |
76b72cf1 | 110 | /* !!!!!!! DO NOT EDIT THIS FILE !!!!!!! |
d4cce5f1 NIS |
111 | This file is built by embed.pl from global.sym, intrpvar.h, |
112 | and thrdvar.h. Any changes made here will be lost! | |
76b72cf1 | 113 | */ |
e50aee73 AD |
114 | |
115 | /* (Doing namespace management portably in C is really gross.) */ | |
116 | ||
820c3be9 | 117 | /* EMBED has no run-time penalty, but helps keep the Perl namespace |
118 | from colliding with that used by other libraries pulled in | |
119 | by extensions or by embedding perl. Allow a cc -DNO_EMBED | |
120 | override, however, to keep binary compatability with previous | |
121 | versions of perl. | |
122 | */ | |
123 | #ifndef NO_EMBED | |
124 | # define EMBED 1 | |
125 | #endif | |
126 | ||
5f05dabc | 127 | /* Hide global symbols? */ |
128 | ||
e50aee73 AD |
129 | #ifdef EMBED |
130 | ||
e50aee73 AD |
131 | END |
132 | ||
5f05dabc | 133 | for $sym (sort keys %global) { |
dc86dda3 | 134 | print EM embed($sym); |
e50aee73 AD |
135 | } |
136 | ||
e50aee73 AD |
137 | print EM <<'END'; |
138 | ||
139 | #endif /* EMBED */ | |
140 | ||
d4cce5f1 NIS |
141 | END |
142 | ||
143 | close(EM); | |
144 | ||
145 | unlink 'embedvar.h'; | |
146 | open(EM, '> embedvar.h') | |
147 | or die "Can't create embedvar.h: $!\n"; | |
148 | ||
149 | print EM <<'END'; | |
150 | /* !!!!!!! DO NOT EDIT THIS FILE !!!!!!! | |
151 | This file is built by embed.pl from global.sym, intrpvar.h, | |
152 | and thrdvar.h. Any changes made here will be lost! | |
153 | */ | |
154 | ||
155 | /* (Doing namespace management portably in C is really gross.) */ | |
156 | ||
157 | /* EMBED has no run-time penalty, but helps keep the Perl namespace | |
158 | from colliding with that used by other libraries pulled in | |
159 | by extensions or by embedding perl. Allow a cc -DNO_EMBED | |
160 | override, however, to keep binary compatability with previous | |
161 | versions of perl. | |
162 | */ | |
163 | ||
164 | ||
5f05dabc | 165 | /* Put interpreter-specific symbols into a struct? */ |
e50aee73 AD |
166 | |
167 | #ifdef MULTIPLICITY | |
168 | ||
d4cce5f1 NIS |
169 | #ifndef USE_THREADS |
170 | /* If we do not have threads then per-thread vars are per-interpreter */ | |
171 | ||
e50aee73 AD |
172 | END |
173 | ||
d4cce5f1 | 174 | for $sym (sort keys %thread) { |
8f872242 | 175 | print EM multon($sym,'T','PL_curinterp->'); |
d4cce5f1 NIS |
176 | } |
177 | ||
178 | print EM <<'END'; | |
179 | ||
180 | #endif /* !USE_THREADS */ | |
181 | ||
182 | /* These are always per-interpreter if there is more than one */ | |
183 | ||
184 | END | |
185 | ||
186 | for $sym (sort keys %intrp) { | |
8f872242 | 187 | print EM multon($sym,'I','PL_curinterp->'); |
760ac839 | 188 | } |
760ac839 | 189 | |
55497cff | 190 | print EM <<'END'; |
191 | ||
5f05dabc | 192 | #else /* !MULTIPLICITY */ |
55497cff | 193 | |
194 | END | |
760ac839 | 195 | |
d4cce5f1 NIS |
196 | for $sym (sort keys %intrp) { |
197 | print EM multoff($sym,'I'); | |
e50aee73 | 198 | } |
e50aee73 | 199 | |
56d28764 CS |
200 | print EM <<'END'; |
201 | ||
d4cce5f1 NIS |
202 | #ifndef USE_THREADS |
203 | ||
204 | END | |
205 | ||
206 | for $sym (sort keys %thread) { | |
207 | print EM multoff($sym,'T'); | |
208 | } | |
209 | ||
210 | print EM <<'END'; | |
211 | ||
212 | #endif /* USE_THREADS */ | |
213 | ||
214 | /* Hide what would have been interpreter-specific symbols? */ | |
5f05dabc | 215 | |
56d28764 CS |
216 | #ifdef EMBED |
217 | ||
218 | END | |
e50aee73 | 219 | |
d4cce5f1 | 220 | for $sym (sort keys %intrp) { |
3280af22 | 221 | print EM embedvar($sym); |
d4cce5f1 NIS |
222 | } |
223 | ||
224 | print EM <<'END'; | |
225 | ||
226 | #ifndef USE_THREADS | |
227 | ||
228 | END | |
229 | ||
230 | for $sym (sort keys %thread) { | |
3280af22 | 231 | print EM embedvar($sym); |
5f05dabc | 232 | } |
233 | ||
234 | print EM <<'END'; | |
235 | ||
d4cce5f1 | 236 | #endif /* USE_THREADS */ |
56d28764 | 237 | #endif /* EMBED */ |
e50aee73 | 238 | #endif /* MULTIPLICITY */ |
d4cce5f1 NIS |
239 | |
240 | /* Now same trickey for per-thread variables */ | |
241 | ||
242 | #ifdef USE_THREADS | |
243 | ||
244 | END | |
245 | ||
246 | for $sym (sort keys %thread) { | |
22239a37 | 247 | print EM multon($sym,'T','thr->'); |
d4cce5f1 NIS |
248 | } |
249 | ||
250 | print EM <<'END'; | |
251 | ||
252 | #endif /* USE_THREADS */ | |
253 | ||
22239a37 NIS |
254 | #ifdef PERL_GLOBAL_STRUCT |
255 | ||
256 | END | |
257 | ||
258 | for $sym (sort keys %globvar) { | |
259 | print EM multon($sym,'G','Perl_Vars.'); | |
260 | } | |
261 | ||
262 | print EM <<'END'; | |
263 | ||
264 | #else /* !PERL_GLOBAL_STRUCT */ | |
265 | ||
266 | END | |
267 | ||
268 | for $sym (sort keys %globvar) { | |
269 | print EM multoff($sym,'G'); | |
270 | } | |
271 | ||
272 | print EM <<'END'; | |
273 | ||
274 | #ifdef EMBED | |
275 | ||
276 | END | |
277 | ||
278 | for $sym (sort keys %globvar) { | |
3280af22 | 279 | print EM embedvar($sym); |
22239a37 NIS |
280 | } |
281 | ||
282 | print EM <<'END'; | |
283 | ||
284 | #endif /* EMBED */ | |
285 | #endif /* PERL_GLOBAL_STRUCT */ | |
286 | ||
e50aee73 AD |
287 | END |
288 | ||
3fe35a81 | 289 | close(EM); |