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73f0cc2d GS |
1 | BEGIN { |
2 | push @INC, './lib'; | |
3 | } | |
a8a597b2 MB |
4 | use strict; |
5 | my %alias_to = ( | |
6 | U32 => [qw(PADOFFSET STRLEN)], | |
7 | I32 => [qw(SSize_t long)], | |
8 | U16 => [qw(OPCODE line_t short)], | |
9 | U8 => [qw(char)], | |
a8a597b2 MB |
10 | ); |
11 | ||
12 | my @optype= qw(OP UNOP BINOP LOGOP CONDOP LISTOP PMOP SVOP GVOP PVOP LOOP COP); | |
13 | ||
14 | # Nullsv *must* come first in the following so that the condition | |
15 | # ($$sv == 0) can continue to be used to test (sv == Nullsv). | |
6b88bc9c | 16 | my @specialsv = qw(Nullsv &PL_sv_undef &PL_sv_yes &PL_sv_no); |
a8a597b2 MB |
17 | |
18 | my (%alias_from, $from, $tos); | |
19 | while (($from, $tos) = each %alias_to) { | |
20 | map { $alias_from{$_} = $from } @$tos; | |
21 | } | |
22 | ||
23 | my $c_header = <<'EOT'; | |
24 | /* | |
a8581515 | 25 | * Copyright (c) 1996-1998 Malcolm Beattie |
a8a597b2 MB |
26 | * |
27 | * You may distribute under the terms of either the GNU General Public | |
28 | * License or the Artistic License, as specified in the README file. | |
29 | * | |
30 | */ | |
31 | /* | |
32 | * This file is autogenerated from bytecode.pl. Changes made here will be lost. | |
33 | */ | |
34 | EOT | |
35 | ||
36 | my $perl_header; | |
37 | ($perl_header = $c_header) =~ s{[/ ]?\*/?}{#}g; | |
38 | ||
33b839e2 | 39 | unlink "byterun.c", "byterun.h", "ext/B/B/Asmdata.pm"; |
a8a597b2 MB |
40 | |
41 | # | |
42 | # Start with boilerplate for Asmdata.pm | |
43 | # | |
33b839e2 | 44 | open(ASMDATA_PM, ">ext/B/B/Asmdata.pm") or die "ext/B/B/Asmdata.pm: $!"; |
a8a597b2 MB |
45 | print ASMDATA_PM $perl_header, <<'EOT'; |
46 | package B::Asmdata; | |
47 | use Exporter; | |
48 | @ISA = qw(Exporter); | |
49 | @EXPORT_OK = qw(%insn_data @insn_name @optype @specialsv_name); | |
50 | use vars qw(%insn_data @insn_name @optype @specialsv_name); | |
51 | ||
52 | EOT | |
53 | print ASMDATA_PM <<"EOT"; | |
54 | \@optype = qw(@optype); | |
55 | \@specialsv_name = qw(@specialsv); | |
56 | ||
57 | # XXX insn_data is initialised this way because with a large | |
58 | # %insn_data = (foo => [...], bar => [...], ...) initialiser | |
59 | # I get a hard-to-track-down stack underflow and segfault. | |
60 | EOT | |
61 | ||
62 | # | |
63 | # Boilerplate for byterun.c | |
64 | # | |
65 | open(BYTERUN_C, ">byterun.c") or die "byterun.c: $!"; | |
66 | print BYTERUN_C $c_header, <<'EOT'; | |
67 | ||
68 | #include "EXTERN.h" | |
69 | #include "perl.h" | |
d613ef02 GS |
70 | |
71 | void * | |
72 | bset_obj_store(void *obj, I32 ix) | |
73 | { | |
92742e37 GS |
74 | if (ix > PL_bytecode_obj_list_fill) { |
75 | if (PL_bytecode_obj_list_fill == -1) | |
76 | New(666, PL_bytecode_obj_list, ix + 1, void*); | |
d613ef02 | 77 | else |
92742e37 GS |
78 | Renew(PL_bytecode_obj_list, ix + 1, void*); |
79 | PL_bytecode_obj_list_fill = ix; | |
d613ef02 | 80 | } |
92742e37 | 81 | PL_bytecode_obj_list[ix] = obj; |
d613ef02 GS |
82 | return obj; |
83 | } | |
a8a597b2 MB |
84 | |
85 | #ifdef INDIRECT_BGET_MACROS | |
33b839e2 | 86 | void byterun(struct bytestream bs) |
a8a597b2 | 87 | #else |
4b534093 | 88 | void byterun(PerlIO *fp) |
a8a597b2 MB |
89 | #endif /* INDIRECT_BGET_MACROS */ |
90 | { | |
91 | dTHR; | |
92 | int insn; | |
47358472 | 93 | while ((insn = BGET_FGETC()) != EOF) { |
a8a597b2 MB |
94 | switch (insn) { |
95 | EOT | |
96 | ||
97 | ||
98 | my (@insn_name, $insn_num, $insn, $lvalue, $argtype, $flags, $fundtype); | |
99 | ||
100 | while (<DATA>) { | |
101 | chop; | |
102 | s/#.*//; # remove comments | |
103 | next unless length; | |
104 | if (/^%number\s+(.*)/) { | |
105 | $insn_num = $1; | |
106 | next; | |
107 | } elsif (/%enum\s+(.*?)\s+(.*)/) { | |
108 | create_enum($1, $2); # must come before instructions | |
109 | next; | |
110 | } | |
111 | ($insn, $lvalue, $argtype, $flags) = split; | |
112 | $insn_name[$insn_num] = $insn; | |
113 | $fundtype = $alias_from{$argtype} || $argtype; | |
114 | ||
115 | # | |
116 | # Add the case statement and code for the bytecode interpreter in byterun.c | |
117 | # | |
118 | printf BYTERUN_C "\t case INSN_%s:\t\t/* %d */\n\t {\n", | |
119 | uc($insn), $insn_num; | |
120 | my $optarg = $argtype eq "none" ? "" : ", arg"; | |
121 | if ($optarg) { | |
122 | printf BYTERUN_C "\t\t$argtype arg;\n\t\tBGET_%s(arg);\n", $fundtype; | |
123 | } | |
124 | if ($flags =~ /x/) { | |
125 | print BYTERUN_C "\t\tBSET_$insn($lvalue$optarg);\n"; | |
126 | } elsif ($flags =~ /s/) { | |
92742e37 | 127 | # Store instructions store to PL_bytecode_obj_list[arg]. "lvalue" field is rvalue. |
a8a597b2 MB |
128 | print BYTERUN_C "\t\tBSET_OBJ_STORE($lvalue$optarg);\n"; |
129 | } | |
130 | elsif ($optarg && $lvalue ne "none") { | |
131 | print BYTERUN_C "\t\t$lvalue = arg;\n"; | |
132 | } | |
133 | print BYTERUN_C "\t\tbreak;\n\t }\n"; | |
134 | ||
135 | # | |
136 | # Add the initialiser line for %insn_data in Asmdata.pm | |
137 | # | |
138 | print ASMDATA_PM <<"EOT"; | |
139 | \$insn_data{$insn} = [$insn_num, \\&PUT_$fundtype, "GET_$fundtype"]; | |
140 | EOT | |
141 | ||
142 | # Find the next unused instruction number | |
143 | do { $insn_num++ } while $insn_name[$insn_num]; | |
144 | } | |
145 | ||
146 | # | |
147 | # Finish off byterun.c | |
148 | # | |
149 | print BYTERUN_C <<'EOT'; | |
150 | default: | |
151 | croak("Illegal bytecode instruction %d\n", insn); | |
152 | /* NOTREACHED */ | |
153 | } | |
154 | } | |
155 | } | |
156 | EOT | |
157 | ||
158 | # | |
159 | # Write the instruction and optype enum constants into byterun.h | |
160 | # | |
161 | open(BYTERUN_H, ">byterun.h") or die "byterun.h: $!"; | |
162 | print BYTERUN_H $c_header, <<'EOT'; | |
163 | #ifdef INDIRECT_BGET_MACROS | |
164 | struct bytestream { | |
165 | void *data; | |
166 | int (*fgetc)(void *); | |
167 | int (*fread)(char *, size_t, size_t, void*); | |
168 | void (*freadpv)(U32, void*); | |
169 | }; | |
a8a597b2 MB |
170 | #endif /* INDIRECT_BGET_MACROS */ |
171 | ||
d613ef02 | 172 | void *bset_obj_store _((void *, I32)); |
a8a597b2 MB |
173 | |
174 | enum { | |
175 | EOT | |
176 | ||
177 | my $i = 0; | |
178 | my $add_enum_value = 0; | |
179 | my $max_insn; | |
180 | for ($i = 0; $i < @insn_name; $i++) { | |
181 | $insn = uc($insn_name[$i]); | |
182 | if (defined($insn)) { | |
183 | $max_insn = $i; | |
184 | if ($add_enum_value) { | |
185 | print BYTERUN_H " INSN_$insn = $i,\t\t\t/* $i */\n"; | |
186 | $add_enum_value = 0; | |
187 | } else { | |
188 | print BYTERUN_H " INSN_$insn,\t\t\t/* $i */\n"; | |
189 | } | |
190 | } else { | |
191 | $add_enum_value = 1; | |
192 | } | |
193 | } | |
194 | ||
195 | print BYTERUN_H " MAX_INSN = $max_insn\n};\n"; | |
196 | ||
197 | print BYTERUN_H "\nenum {\n"; | |
198 | for ($i = 0; $i < @optype - 1; $i++) { | |
199 | printf BYTERUN_H " OPt_%s,\t\t/* %d */\n", $optype[$i], $i; | |
200 | } | |
201 | printf BYTERUN_H " OPt_%s\t\t/* %d */\n};\n\n", $optype[$i], $i; | |
202 | print BYTERUN_H <<'EOT'; | |
203 | EXT int optype_size[] | |
204 | #ifdef DOINIT | |
205 | = { | |
206 | EOT | |
207 | for ($i = 0; $i < @optype - 1; $i++) { | |
208 | printf BYTERUN_H " sizeof(%s),\n", $optype[$i], $i; | |
209 | } | |
210 | printf BYTERUN_H " sizeof(%s)\n}\n", $optype[$i], $i; | |
211 | print BYTERUN_H <<'EOT'; | |
212 | #endif /* DOINIT */ | |
213 | ; | |
214 | ||
215 | EOT | |
216 | ||
fe3a57c4 | 217 | print BYTERUN_H <<'EOT'; |
a8a597b2 MB |
218 | #define INIT_SPECIALSV_LIST STMT_START { \ |
219 | EOT | |
220 | for ($i = 0; $i < @specialsv; $i++) { | |
6b88bc9c | 221 | print BYTERUN_H "\tPL_specialsv_list[$i] = $specialsv[$i]; \\\n"; |
a8a597b2 MB |
222 | } |
223 | print BYTERUN_H <<'EOT'; | |
33b839e2 | 224 | } STMT_END |
a8a597b2 MB |
225 | EOT |
226 | ||
227 | # | |
228 | # Finish off insn_data and create array initialisers in Asmdata.pm | |
229 | # | |
230 | print ASMDATA_PM <<'EOT'; | |
231 | ||
232 | my ($insn_name, $insn_data); | |
233 | while (($insn_name, $insn_data) = each %insn_data) { | |
234 | $insn_name[$insn_data->[0]] = $insn_name; | |
235 | } | |
236 | # Fill in any gaps | |
237 | @insn_name = map($_ || "unused", @insn_name); | |
238 | ||
239 | 1; | |
42d3a99d GS |
240 | |
241 | __END__ | |
242 | ||
243 | =head1 NAME | |
244 | ||
245 | B::Asmdata - Autogenerated data about Perl ops, used to generate bytecode | |
246 | ||
247 | =head1 SYNOPSIS | |
248 | ||
249 | use Asmdata; | |
250 | ||
251 | =head1 DESCRIPTION | |
252 | ||
253 | See F<ext/B/B/Asmdata.pm>. | |
254 | ||
255 | =head1 AUTHOR | |
256 | ||
257 | Malcolm Beattie, C<mbeattie@sable.ox.ac.uk> | |
258 | ||
259 | =cut | |
a8a597b2 MB |
260 | EOT |
261 | ||
262 | __END__ | |
263 | # First set instruction ord("#") to read comment to end-of-line (sneaky) | |
264 | %number 35 | |
fe3a57c4 | 265 | comment arg comment_t |
a8a597b2 MB |
266 | # Then make ord("\n") into a no-op |
267 | %number 10 | |
268 | nop none none | |
269 | # Now for the rest of the ordinary ones, beginning with \0 which is | |
270 | # ret so that \0-terminated strings can be read properly as bytecode. | |
271 | %number 0 | |
272 | # | |
92742e37 | 273 | #opcode lvalue argtype flags |
a8a597b2 | 274 | # |
92742e37 GS |
275 | ret none none x |
276 | ldsv PL_bytecode_sv svindex | |
277 | ldop PL_op opindex | |
278 | stsv PL_bytecode_sv U32 s | |
279 | stop PL_op U32 s | |
280 | ldspecsv PL_bytecode_sv U8 x | |
281 | newsv PL_bytecode_sv U8 x | |
282 | newop PL_op U8 x | |
283 | newopn PL_op U8 x | |
284 | newpv none PV | |
285 | pv_cur PL_bytecode_pv.xpv_cur STRLEN | |
286 | pv_free PL_bytecode_pv none x | |
287 | sv_upgrade PL_bytecode_sv char x | |
288 | sv_refcnt SvREFCNT(PL_bytecode_sv) U32 | |
289 | sv_refcnt_add SvREFCNT(PL_bytecode_sv) I32 x | |
290 | sv_flags SvFLAGS(PL_bytecode_sv) U32 | |
291 | xrv SvRV(PL_bytecode_sv) svindex | |
292 | xpv PL_bytecode_sv none x | |
293 | xiv32 SvIVX(PL_bytecode_sv) I32 | |
294 | xiv64 SvIVX(PL_bytecode_sv) IV64 | |
295 | xnv SvNVX(PL_bytecode_sv) double | |
296 | xlv_targoff LvTARGOFF(PL_bytecode_sv) STRLEN | |
297 | xlv_targlen LvTARGLEN(PL_bytecode_sv) STRLEN | |
298 | xlv_targ LvTARG(PL_bytecode_sv) svindex | |
299 | xlv_type LvTYPE(PL_bytecode_sv) char | |
300 | xbm_useful BmUSEFUL(PL_bytecode_sv) I32 | |
301 | xbm_previous BmPREVIOUS(PL_bytecode_sv) U16 | |
302 | xbm_rare BmRARE(PL_bytecode_sv) U8 | |
303 | xfm_lines FmLINES(PL_bytecode_sv) I32 | |
304 | xio_lines IoLINES(PL_bytecode_sv) long | |
305 | xio_page IoPAGE(PL_bytecode_sv) long | |
306 | xio_page_len IoPAGE_LEN(PL_bytecode_sv) long | |
307 | xio_lines_left IoLINES_LEFT(PL_bytecode_sv) long | |
308 | xio_top_name IoTOP_NAME(PL_bytecode_sv) pvcontents | |
309 | xio_top_gv *(SV**)&IoTOP_GV(PL_bytecode_sv) svindex | |
310 | xio_fmt_name IoFMT_NAME(PL_bytecode_sv) pvcontents | |
311 | xio_fmt_gv *(SV**)&IoFMT_GV(PL_bytecode_sv) svindex | |
312 | xio_bottom_name IoBOTTOM_NAME(PL_bytecode_sv) pvcontents | |
313 | xio_bottom_gv *(SV**)&IoBOTTOM_GV(PL_bytecode_sv) svindex | |
314 | xio_subprocess IoSUBPROCESS(PL_bytecode_sv) short | |
315 | xio_type IoTYPE(PL_bytecode_sv) char | |
316 | xio_flags IoFLAGS(PL_bytecode_sv) char | |
317 | xcv_stash *(SV**)&CvSTASH(PL_bytecode_sv) svindex | |
318 | xcv_start CvSTART(PL_bytecode_sv) opindex | |
319 | xcv_root CvROOT(PL_bytecode_sv) opindex | |
320 | xcv_gv *(SV**)&CvGV(PL_bytecode_sv) svindex | |
321 | xcv_filegv *(SV**)&CvFILEGV(PL_bytecode_sv) svindex | |
322 | xcv_depth CvDEPTH(PL_bytecode_sv) long | |
323 | xcv_padlist *(SV**)&CvPADLIST(PL_bytecode_sv) svindex | |
324 | xcv_outside *(SV**)&CvOUTSIDE(PL_bytecode_sv) svindex | |
325 | xcv_flags CvFLAGS(PL_bytecode_sv) U8 | |
326 | av_extend PL_bytecode_sv SSize_t x | |
327 | av_push PL_bytecode_sv svindex x | |
328 | xav_fill AvFILLp(PL_bytecode_sv) SSize_t | |
329 | xav_max AvMAX(PL_bytecode_sv) SSize_t | |
330 | xav_flags AvFLAGS(PL_bytecode_sv) U8 | |
331 | xhv_riter HvRITER(PL_bytecode_sv) I32 | |
332 | xhv_name HvNAME(PL_bytecode_sv) pvcontents | |
333 | hv_store PL_bytecode_sv svindex x | |
334 | sv_magic PL_bytecode_sv char x | |
335 | mg_obj SvMAGIC(PL_bytecode_sv)->mg_obj svindex | |
336 | mg_private SvMAGIC(PL_bytecode_sv)->mg_private U16 | |
337 | mg_flags SvMAGIC(PL_bytecode_sv)->mg_flags U8 | |
338 | mg_pv SvMAGIC(PL_bytecode_sv) pvcontents x | |
339 | xmg_stash *(SV**)&SvSTASH(PL_bytecode_sv) svindex | |
340 | gv_fetchpv PL_bytecode_sv strconst x | |
341 | gv_stashpv PL_bytecode_sv strconst x | |
342 | gp_sv GvSV(PL_bytecode_sv) svindex | |
343 | gp_refcnt GvREFCNT(PL_bytecode_sv) U32 | |
344 | gp_refcnt_add GvREFCNT(PL_bytecode_sv) I32 x | |
345 | gp_av *(SV**)&GvAV(PL_bytecode_sv) svindex | |
346 | gp_hv *(SV**)&GvHV(PL_bytecode_sv) svindex | |
347 | gp_cv *(SV**)&GvCV(PL_bytecode_sv) svindex | |
348 | gp_filegv *(SV**)&GvFILEGV(PL_bytecode_sv) svindex | |
349 | gp_io *(SV**)&GvIOp(PL_bytecode_sv) svindex | |
350 | gp_form *(SV**)&GvFORM(PL_bytecode_sv) svindex | |
351 | gp_cvgen GvCVGEN(PL_bytecode_sv) U32 | |
352 | gp_line GvLINE(PL_bytecode_sv) line_t | |
353 | gp_share PL_bytecode_sv svindex x | |
354 | xgv_flags GvFLAGS(PL_bytecode_sv) U8 | |
355 | op_next PL_op->op_next opindex | |
356 | op_sibling PL_op->op_sibling opindex | |
357 | op_ppaddr PL_op->op_ppaddr strconst x | |
358 | op_targ PL_op->op_targ PADOFFSET | |
359 | op_type PL_op OPCODE x | |
360 | op_seq PL_op->op_seq U16 | |
361 | op_flags PL_op->op_flags U8 | |
362 | op_private PL_op->op_private U8 | |
363 | op_first cUNOP->op_first opindex | |
364 | op_last cBINOP->op_last opindex | |
365 | op_other cLOGOP->op_other opindex | |
366 | op_true cCONDOP->op_true opindex | |
367 | op_false cCONDOP->op_false opindex | |
368 | op_children cLISTOP->op_children U32 | |
369 | op_pmreplroot cPMOP->op_pmreplroot opindex | |
370 | op_pmreplrootgv *(SV**)&cPMOP->op_pmreplroot svindex | |
371 | op_pmreplstart cPMOP->op_pmreplstart opindex | |
372 | op_pmnext *(OP**)&cPMOP->op_pmnext opindex | |
373 | pregcomp PL_op pvcontents x | |
374 | op_pmflags cPMOP->op_pmflags U16 | |
375 | op_pmpermflags cPMOP->op_pmpermflags U16 | |
376 | op_sv cSVOP->op_sv svindex | |
377 | op_gv *(SV**)&cGVOP->op_gv svindex | |
378 | op_pv cPVOP->op_pv pvcontents | |
379 | op_pv_tr cPVOP->op_pv op_tr_array | |
380 | op_redoop cLOOP->op_redoop opindex | |
381 | op_nextop cLOOP->op_nextop opindex | |
382 | op_lastop cLOOP->op_lastop opindex | |
383 | cop_label cCOP->cop_label pvcontents | |
384 | cop_stash *(SV**)&cCOP->cop_stash svindex | |
385 | cop_filegv *(SV**)&cCOP->cop_filegv svindex | |
386 | cop_seq cCOP->cop_seq U32 | |
387 | cop_arybase cCOP->cop_arybase I32 | |
388 | cop_line cCOP->cop_line line_t | |
389 | main_start PL_main_start opindex | |
390 | main_root PL_main_root opindex | |
391 | curpad PL_curpad svindex x |