Commit | Line | Data |
73f0cc2d |
1 | BEGIN { |
2 | push @INC, './lib'; |
3 | } |
a8a597b2 |
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 |
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 |
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 | /* |
4eb8286e |
25 | * Copyright (c) 1996-1999 Malcolm Beattie |
a8a597b2 |
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 | |
e8edd1e6 |
39 | unlink "ext/ByteLoader/byterun.c", "ext/ByteLoader/byterun.h", "ext/B/B/Asmdata.pm"; |
a8a597b2 |
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 |
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 | # |
e8edd1e6 |
65 | open(BYTERUN_C, ">ext/ByteLoader/byterun.c") or die "ext/ByteLoader/byterun.c: $!"; |
a8a597b2 |
66 | print BYTERUN_C $c_header, <<'EOT'; |
67 | |
68 | #include "EXTERN.h" |
69 | #include "perl.h" |
e8edd1e6 |
70 | #include "byterun.h" |
71 | #include "bytecode.h" |
72 | |
73 | static int optype_size[] = { |
74 | EOT |
75 | my $i = 0; |
76 | for ($i = 0; $i < @optype - 1; $i++) { |
77 | printf BYTERUN_C " sizeof(%s),\n", $optype[$i], $i; |
78 | } |
79 | printf BYTERUN_C " sizeof(%s)\n", $optype[$i], $i; |
80 | print BYTERUN_C <<'EOT'; |
81 | }; |
82 | |
83 | static SV *specialsv_list[4]; |
84 | |
85 | static int bytecode_iv_overflows = 0; |
86 | static SV *bytecode_sv; |
87 | static XPV bytecode_pv; |
88 | static void **bytecode_obj_list; |
89 | static I32 bytecode_obj_list_fill = -1; |
d613ef02 |
90 | |
91 | void * |
92 | bset_obj_store(void *obj, I32 ix) |
93 | { |
e8edd1e6 |
94 | if (ix > bytecode_obj_list_fill) { |
95 | if (bytecode_obj_list_fill == -1) |
96 | New(666, bytecode_obj_list, ix + 1, void*); |
d613ef02 |
97 | else |
e8edd1e6 |
98 | Renew(bytecode_obj_list, ix + 1, void*); |
99 | bytecode_obj_list_fill = ix; |
d613ef02 |
100 | } |
e8edd1e6 |
101 | bytecode_obj_list[ix] = obj; |
d613ef02 |
102 | return obj; |
103 | } |
a8a597b2 |
104 | |
cea2e8a9 |
105 | void |
106 | byterun(pTHX_ struct bytestream bs) |
a8a597b2 |
107 | { |
108 | dTHR; |
109 | int insn; |
e8edd1e6 |
110 | |
111 | EOT |
112 | |
113 | for (my $i = 0; $i < @specialsv; $i++) { |
114 | print BYTERUN_C " specialsv_list[$i] = $specialsv[$i];\n"; |
115 | } |
116 | |
117 | print BYTERUN_C <<'EOT'; |
118 | |
47358472 |
119 | while ((insn = BGET_FGETC()) != EOF) { |
a8a597b2 |
120 | switch (insn) { |
121 | EOT |
122 | |
123 | |
124 | my (@insn_name, $insn_num, $insn, $lvalue, $argtype, $flags, $fundtype); |
125 | |
126 | while (<DATA>) { |
127 | chop; |
128 | s/#.*//; # remove comments |
129 | next unless length; |
130 | if (/^%number\s+(.*)/) { |
131 | $insn_num = $1; |
132 | next; |
133 | } elsif (/%enum\s+(.*?)\s+(.*)/) { |
134 | create_enum($1, $2); # must come before instructions |
135 | next; |
136 | } |
137 | ($insn, $lvalue, $argtype, $flags) = split; |
138 | $insn_name[$insn_num] = $insn; |
139 | $fundtype = $alias_from{$argtype} || $argtype; |
140 | |
141 | # |
142 | # Add the case statement and code for the bytecode interpreter in byterun.c |
143 | # |
144 | printf BYTERUN_C "\t case INSN_%s:\t\t/* %d */\n\t {\n", |
145 | uc($insn), $insn_num; |
146 | my $optarg = $argtype eq "none" ? "" : ", arg"; |
147 | if ($optarg) { |
148 | printf BYTERUN_C "\t\t$argtype arg;\n\t\tBGET_%s(arg);\n", $fundtype; |
149 | } |
150 | if ($flags =~ /x/) { |
151 | print BYTERUN_C "\t\tBSET_$insn($lvalue$optarg);\n"; |
152 | } elsif ($flags =~ /s/) { |
e8edd1e6 |
153 | # Store instructions store to bytecode_obj_list[arg]. "lvalue" field is rvalue. |
a8a597b2 |
154 | print BYTERUN_C "\t\tBSET_OBJ_STORE($lvalue$optarg);\n"; |
155 | } |
156 | elsif ($optarg && $lvalue ne "none") { |
157 | print BYTERUN_C "\t\t$lvalue = arg;\n"; |
158 | } |
159 | print BYTERUN_C "\t\tbreak;\n\t }\n"; |
160 | |
161 | # |
162 | # Add the initialiser line for %insn_data in Asmdata.pm |
163 | # |
164 | print ASMDATA_PM <<"EOT"; |
165 | \$insn_data{$insn} = [$insn_num, \\&PUT_$fundtype, "GET_$fundtype"]; |
166 | EOT |
167 | |
168 | # Find the next unused instruction number |
169 | do { $insn_num++ } while $insn_name[$insn_num]; |
170 | } |
171 | |
172 | # |
173 | # Finish off byterun.c |
174 | # |
175 | print BYTERUN_C <<'EOT'; |
176 | default: |
cea2e8a9 |
177 | Perl_croak(aTHX_ "Illegal bytecode instruction %d\n", insn); |
a8a597b2 |
178 | /* NOTREACHED */ |
179 | } |
180 | } |
181 | } |
182 | EOT |
183 | |
184 | # |
185 | # Write the instruction and optype enum constants into byterun.h |
186 | # |
e8edd1e6 |
187 | open(BYTERUN_H, ">ext/ByteLoader/byterun.h") or die "ext/ByteLoader/byterun.h: $!"; |
a8a597b2 |
188 | print BYTERUN_H $c_header, <<'EOT'; |
a8a597b2 |
189 | struct bytestream { |
190 | void *data; |
4f63d024 |
191 | int (*pfgetc)(void *); |
192 | int (*pfread)(char *, size_t, size_t, void *); |
193 | void (*pfreadpv)(U32, void *, XPV *); |
a8a597b2 |
194 | }; |
a8a597b2 |
195 | |
a8a597b2 |
196 | enum { |
197 | EOT |
198 | |
199 | my $i = 0; |
200 | my $add_enum_value = 0; |
201 | my $max_insn; |
202 | for ($i = 0; $i < @insn_name; $i++) { |
203 | $insn = uc($insn_name[$i]); |
204 | if (defined($insn)) { |
205 | $max_insn = $i; |
206 | if ($add_enum_value) { |
207 | print BYTERUN_H " INSN_$insn = $i,\t\t\t/* $i */\n"; |
208 | $add_enum_value = 0; |
209 | } else { |
210 | print BYTERUN_H " INSN_$insn,\t\t\t/* $i */\n"; |
211 | } |
212 | } else { |
213 | $add_enum_value = 1; |
214 | } |
215 | } |
216 | |
217 | print BYTERUN_H " MAX_INSN = $max_insn\n};\n"; |
218 | |
219 | print BYTERUN_H "\nenum {\n"; |
220 | for ($i = 0; $i < @optype - 1; $i++) { |
221 | printf BYTERUN_H " OPt_%s,\t\t/* %d */\n", $optype[$i], $i; |
222 | } |
223 | printf BYTERUN_H " OPt_%s\t\t/* %d */\n};\n\n", $optype[$i], $i; |
224 | print BYTERUN_H <<'EOT'; |
015b361d |
225 | EXT int PL_optype_size[] |
a8a597b2 |
226 | #ifdef DOINIT |
227 | = { |
228 | EOT |
229 | for ($i = 0; $i < @optype - 1; $i++) { |
230 | printf BYTERUN_H " sizeof(%s),\n", $optype[$i], $i; |
231 | } |
232 | printf BYTERUN_H " sizeof(%s)\n}\n", $optype[$i], $i; |
233 | print BYTERUN_H <<'EOT'; |
234 | #endif /* DOINIT */ |
235 | ; |
236 | |
237 | EOT |
238 | |
fe3a57c4 |
239 | print BYTERUN_H <<'EOT'; |
a8a597b2 |
240 | #define INIT_SPECIALSV_LIST STMT_START { \ |
241 | EOT |
242 | for ($i = 0; $i < @specialsv; $i++) { |
6b88bc9c |
243 | print BYTERUN_H "\tPL_specialsv_list[$i] = $specialsv[$i]; \\\n"; |
a8a597b2 |
244 | } |
245 | print BYTERUN_H <<'EOT'; |
33b839e2 |
246 | } STMT_END |
a8a597b2 |
247 | EOT |
248 | |
249 | # |
250 | # Finish off insn_data and create array initialisers in Asmdata.pm |
251 | # |
252 | print ASMDATA_PM <<'EOT'; |
253 | |
254 | my ($insn_name, $insn_data); |
255 | while (($insn_name, $insn_data) = each %insn_data) { |
256 | $insn_name[$insn_data->[0]] = $insn_name; |
257 | } |
258 | # Fill in any gaps |
259 | @insn_name = map($_ || "unused", @insn_name); |
260 | |
261 | 1; |
42d3a99d |
262 | |
263 | __END__ |
264 | |
265 | =head1 NAME |
266 | |
267 | B::Asmdata - Autogenerated data about Perl ops, used to generate bytecode |
268 | |
269 | =head1 SYNOPSIS |
270 | |
271 | use Asmdata; |
272 | |
273 | =head1 DESCRIPTION |
274 | |
275 | See F<ext/B/B/Asmdata.pm>. |
276 | |
277 | =head1 AUTHOR |
278 | |
279 | Malcolm Beattie, C<mbeattie@sable.ox.ac.uk> |
280 | |
281 | =cut |
a8a597b2 |
282 | EOT |
283 | |
284 | __END__ |
285 | # First set instruction ord("#") to read comment to end-of-line (sneaky) |
286 | %number 35 |
fe3a57c4 |
287 | comment arg comment_t |
a8a597b2 |
288 | # Then make ord("\n") into a no-op |
289 | %number 10 |
290 | nop none none |
291 | # Now for the rest of the ordinary ones, beginning with \0 which is |
292 | # ret so that \0-terminated strings can be read properly as bytecode. |
293 | %number 0 |
294 | # |
92742e37 |
295 | #opcode lvalue argtype flags |
a8a597b2 |
296 | # |
92742e37 |
297 | ret none none x |
e8edd1e6 |
298 | ldsv bytecode_sv svindex |
92742e37 |
299 | ldop PL_op opindex |
e8edd1e6 |
300 | stsv bytecode_sv U32 s |
92742e37 |
301 | stop PL_op U32 s |
e8edd1e6 |
302 | ldspecsv bytecode_sv U8 x |
303 | newsv bytecode_sv U8 x |
92742e37 |
304 | newop PL_op U8 x |
305 | newopn PL_op U8 x |
306 | newpv none PV |
e8edd1e6 |
307 | pv_cur bytecode_pv.xpv_cur STRLEN |
308 | pv_free bytecode_pv none x |
309 | sv_upgrade bytecode_sv char x |
310 | sv_refcnt SvREFCNT(bytecode_sv) U32 |
311 | sv_refcnt_add SvREFCNT(bytecode_sv) I32 x |
312 | sv_flags SvFLAGS(bytecode_sv) U32 |
313 | xrv SvRV(bytecode_sv) svindex |
314 | xpv bytecode_sv none x |
315 | xiv32 SvIVX(bytecode_sv) I32 |
316 | xiv64 SvIVX(bytecode_sv) IV64 |
317 | xnv SvNVX(bytecode_sv) double |
318 | xlv_targoff LvTARGOFF(bytecode_sv) STRLEN |
319 | xlv_targlen LvTARGLEN(bytecode_sv) STRLEN |
320 | xlv_targ LvTARG(bytecode_sv) svindex |
321 | xlv_type LvTYPE(bytecode_sv) char |
322 | xbm_useful BmUSEFUL(bytecode_sv) I32 |
323 | xbm_previous BmPREVIOUS(bytecode_sv) U16 |
324 | xbm_rare BmRARE(bytecode_sv) U8 |
325 | xfm_lines FmLINES(bytecode_sv) I32 |
326 | xio_lines IoLINES(bytecode_sv) long |
327 | xio_page IoPAGE(bytecode_sv) long |
328 | xio_page_len IoPAGE_LEN(bytecode_sv) long |
329 | xio_lines_left IoLINES_LEFT(bytecode_sv) long |
330 | xio_top_name IoTOP_NAME(bytecode_sv) pvcontents |
331 | xio_top_gv *(SV**)&IoTOP_GV(bytecode_sv) svindex |
332 | xio_fmt_name IoFMT_NAME(bytecode_sv) pvcontents |
333 | xio_fmt_gv *(SV**)&IoFMT_GV(bytecode_sv) svindex |
334 | xio_bottom_name IoBOTTOM_NAME(bytecode_sv) pvcontents |
335 | xio_bottom_gv *(SV**)&IoBOTTOM_GV(bytecode_sv) svindex |
336 | xio_subprocess IoSUBPROCESS(bytecode_sv) short |
337 | xio_type IoTYPE(bytecode_sv) char |
338 | xio_flags IoFLAGS(bytecode_sv) char |
339 | xcv_stash *(SV**)&CvSTASH(bytecode_sv) svindex |
340 | xcv_start CvSTART(bytecode_sv) opindex |
341 | xcv_root CvROOT(bytecode_sv) opindex |
342 | xcv_gv *(SV**)&CvGV(bytecode_sv) svindex |
343 | xcv_filegv *(SV**)&CvFILEGV(bytecode_sv) svindex |
344 | xcv_depth CvDEPTH(bytecode_sv) long |
345 | xcv_padlist *(SV**)&CvPADLIST(bytecode_sv) svindex |
346 | xcv_outside *(SV**)&CvOUTSIDE(bytecode_sv) svindex |
347 | xcv_flags CvFLAGS(bytecode_sv) U8 |
348 | av_extend bytecode_sv SSize_t x |
349 | av_push bytecode_sv svindex x |
350 | xav_fill AvFILLp(bytecode_sv) SSize_t |
351 | xav_max AvMAX(bytecode_sv) SSize_t |
352 | xav_flags AvFLAGS(bytecode_sv) U8 |
353 | xhv_riter HvRITER(bytecode_sv) I32 |
354 | xhv_name HvNAME(bytecode_sv) pvcontents |
355 | hv_store bytecode_sv svindex x |
356 | sv_magic bytecode_sv char x |
357 | mg_obj SvMAGIC(bytecode_sv)->mg_obj svindex |
358 | mg_private SvMAGIC(bytecode_sv)->mg_private U16 |
359 | mg_flags SvMAGIC(bytecode_sv)->mg_flags U8 |
360 | mg_pv SvMAGIC(bytecode_sv) pvcontents x |
361 | xmg_stash *(SV**)&SvSTASH(bytecode_sv) svindex |
362 | gv_fetchpv bytecode_sv strconst x |
363 | gv_stashpv bytecode_sv strconst x |
364 | gp_sv GvSV(bytecode_sv) svindex |
365 | gp_refcnt GvREFCNT(bytecode_sv) U32 |
366 | gp_refcnt_add GvREFCNT(bytecode_sv) I32 x |
367 | gp_av *(SV**)&GvAV(bytecode_sv) svindex |
368 | gp_hv *(SV**)&GvHV(bytecode_sv) svindex |
369 | gp_cv *(SV**)&GvCV(bytecode_sv) svindex |
370 | gp_filegv *(SV**)&GvFILEGV(bytecode_sv) svindex |
371 | gp_io *(SV**)&GvIOp(bytecode_sv) svindex |
372 | gp_form *(SV**)&GvFORM(bytecode_sv) svindex |
373 | gp_cvgen GvCVGEN(bytecode_sv) U32 |
374 | gp_line GvLINE(bytecode_sv) line_t |
375 | gp_share bytecode_sv svindex x |
376 | xgv_flags GvFLAGS(bytecode_sv) U8 |
92742e37 |
377 | op_next PL_op->op_next opindex |
378 | op_sibling PL_op->op_sibling opindex |
379 | op_ppaddr PL_op->op_ppaddr strconst x |
380 | op_targ PL_op->op_targ PADOFFSET |
381 | op_type PL_op OPCODE x |
382 | op_seq PL_op->op_seq U16 |
383 | op_flags PL_op->op_flags U8 |
384 | op_private PL_op->op_private U8 |
385 | op_first cUNOP->op_first opindex |
386 | op_last cBINOP->op_last opindex |
387 | op_other cLOGOP->op_other opindex |
388 | op_true cCONDOP->op_true opindex |
389 | op_false cCONDOP->op_false opindex |
390 | op_children cLISTOP->op_children U32 |
391 | op_pmreplroot cPMOP->op_pmreplroot opindex |
392 | op_pmreplrootgv *(SV**)&cPMOP->op_pmreplroot svindex |
393 | op_pmreplstart cPMOP->op_pmreplstart opindex |
394 | op_pmnext *(OP**)&cPMOP->op_pmnext opindex |
395 | pregcomp PL_op pvcontents x |
396 | op_pmflags cPMOP->op_pmflags U16 |
397 | op_pmpermflags cPMOP->op_pmpermflags U16 |
398 | op_sv cSVOP->op_sv svindex |
399 | op_gv *(SV**)&cGVOP->op_gv svindex |
400 | op_pv cPVOP->op_pv pvcontents |
401 | op_pv_tr cPVOP->op_pv op_tr_array |
402 | op_redoop cLOOP->op_redoop opindex |
403 | op_nextop cLOOP->op_nextop opindex |
404 | op_lastop cLOOP->op_lastop opindex |
405 | cop_label cCOP->cop_label pvcontents |
406 | cop_stash *(SV**)&cCOP->cop_stash svindex |
407 | cop_filegv *(SV**)&cCOP->cop_filegv svindex |
408 | cop_seq cCOP->cop_seq U32 |
409 | cop_arybase cCOP->cop_arybase I32 |
410 | cop_line cCOP->cop_line line_t |
b295d113 |
411 | cop_warnings cCOP->cop_warnings svindex |
92742e37 |
412 | main_start PL_main_start opindex |
413 | main_root PL_main_root opindex |
414 | curpad PL_curpad svindex x |