Commit | Line | Data |
---|---|---|
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 | ||
7934575e | 12 | my @optype= qw(OP UNOP BINOP LOGOP LISTOP PMOP SVOP PADOP PVOP LOOP COP); |
a8a597b2 MB |
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 | /* | |
4eb8286e | 25 | * Copyright (c) 1996-1999 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 | ||
e8edd1e6 | 39 | unlink "ext/ByteLoader/byterun.c", "ext/ByteLoader/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); | |
1b11e67e | 50 | our(%insn_data, @insn_name, @optype, @specialsv_name); |
a8a597b2 MB |
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 MB |
66 | print BYTERUN_C $c_header, <<'EOT'; |
67 | ||
c5be433b | 68 | #define PERL_NO_GET_CONTEXT |
a8a597b2 MB |
69 | #include "EXTERN.h" |
70 | #include "perl.h" | |
0cb96387 GS |
71 | #define NO_XSLOCKS |
72 | #include "XSUB.h" | |
73 | ||
74 | #ifdef PERL_OBJECT | |
75 | #undef CALL_FPTR | |
76 | #define CALL_FPTR(fptr) (pPerl->*fptr) | |
77 | #undef PL_ppaddr | |
78 | #define PL_ppaddr (*get_ppaddr()) | |
79 | #endif | |
80 | ||
e8edd1e6 TH |
81 | #include "byterun.h" |
82 | #include "bytecode.h" | |
83 | ||
0cb96387 | 84 | |
e8edd1e6 TH |
85 | static int optype_size[] = { |
86 | EOT | |
87 | my $i = 0; | |
88 | for ($i = 0; $i < @optype - 1; $i++) { | |
89 | printf BYTERUN_C " sizeof(%s),\n", $optype[$i], $i; | |
90 | } | |
91 | printf BYTERUN_C " sizeof(%s)\n", $optype[$i], $i; | |
92 | print BYTERUN_C <<'EOT'; | |
93 | }; | |
94 | ||
95 | static SV *specialsv_list[4]; | |
96 | ||
97 | static int bytecode_iv_overflows = 0; | |
98 | static SV *bytecode_sv; | |
99 | static XPV bytecode_pv; | |
100 | static void **bytecode_obj_list; | |
101 | static I32 bytecode_obj_list_fill = -1; | |
d613ef02 GS |
102 | |
103 | void * | |
0cb96387 | 104 | bset_obj_store(pTHXo_ void *obj, I32 ix) |
d613ef02 | 105 | { |
e8edd1e6 TH |
106 | if (ix > bytecode_obj_list_fill) { |
107 | if (bytecode_obj_list_fill == -1) | |
108 | New(666, bytecode_obj_list, ix + 1, void*); | |
d613ef02 | 109 | else |
e8edd1e6 TH |
110 | Renew(bytecode_obj_list, ix + 1, void*); |
111 | bytecode_obj_list_fill = ix; | |
d613ef02 | 112 | } |
e8edd1e6 | 113 | bytecode_obj_list[ix] = obj; |
d613ef02 GS |
114 | return obj; |
115 | } | |
a8a597b2 | 116 | |
cea2e8a9 | 117 | void |
0cb96387 | 118 | byterun(pTHXo_ struct bytestream bs) |
a8a597b2 MB |
119 | { |
120 | dTHR; | |
121 | int insn; | |
e8edd1e6 TH |
122 | |
123 | EOT | |
124 | ||
125 | for (my $i = 0; $i < @specialsv; $i++) { | |
126 | print BYTERUN_C " specialsv_list[$i] = $specialsv[$i];\n"; | |
127 | } | |
128 | ||
129 | print BYTERUN_C <<'EOT'; | |
130 | ||
47358472 | 131 | while ((insn = BGET_FGETC()) != EOF) { |
a8a597b2 MB |
132 | switch (insn) { |
133 | EOT | |
134 | ||
135 | ||
136 | my (@insn_name, $insn_num, $insn, $lvalue, $argtype, $flags, $fundtype); | |
137 | ||
138 | while (<DATA>) { | |
139 | chop; | |
140 | s/#.*//; # remove comments | |
141 | next unless length; | |
142 | if (/^%number\s+(.*)/) { | |
143 | $insn_num = $1; | |
144 | next; | |
145 | } elsif (/%enum\s+(.*?)\s+(.*)/) { | |
146 | create_enum($1, $2); # must come before instructions | |
147 | next; | |
148 | } | |
149 | ($insn, $lvalue, $argtype, $flags) = split; | |
150 | $insn_name[$insn_num] = $insn; | |
151 | $fundtype = $alias_from{$argtype} || $argtype; | |
152 | ||
153 | # | |
154 | # Add the case statement and code for the bytecode interpreter in byterun.c | |
155 | # | |
156 | printf BYTERUN_C "\t case INSN_%s:\t\t/* %d */\n\t {\n", | |
157 | uc($insn), $insn_num; | |
158 | my $optarg = $argtype eq "none" ? "" : ", arg"; | |
159 | if ($optarg) { | |
160 | printf BYTERUN_C "\t\t$argtype arg;\n\t\tBGET_%s(arg);\n", $fundtype; | |
161 | } | |
162 | if ($flags =~ /x/) { | |
163 | print BYTERUN_C "\t\tBSET_$insn($lvalue$optarg);\n"; | |
164 | } elsif ($flags =~ /s/) { | |
e8edd1e6 | 165 | # Store instructions store to bytecode_obj_list[arg]. "lvalue" field is rvalue. |
a8a597b2 MB |
166 | print BYTERUN_C "\t\tBSET_OBJ_STORE($lvalue$optarg);\n"; |
167 | } | |
168 | elsif ($optarg && $lvalue ne "none") { | |
169 | print BYTERUN_C "\t\t$lvalue = arg;\n"; | |
170 | } | |
171 | print BYTERUN_C "\t\tbreak;\n\t }\n"; | |
172 | ||
173 | # | |
174 | # Add the initialiser line for %insn_data in Asmdata.pm | |
175 | # | |
176 | print ASMDATA_PM <<"EOT"; | |
177 | \$insn_data{$insn} = [$insn_num, \\&PUT_$fundtype, "GET_$fundtype"]; | |
178 | EOT | |
179 | ||
180 | # Find the next unused instruction number | |
181 | do { $insn_num++ } while $insn_name[$insn_num]; | |
182 | } | |
183 | ||
184 | # | |
185 | # Finish off byterun.c | |
186 | # | |
187 | print BYTERUN_C <<'EOT'; | |
188 | default: | |
cea2e8a9 | 189 | Perl_croak(aTHX_ "Illegal bytecode instruction %d\n", insn); |
a8a597b2 MB |
190 | /* NOTREACHED */ |
191 | } | |
192 | } | |
193 | } | |
194 | EOT | |
195 | ||
196 | # | |
197 | # Write the instruction and optype enum constants into byterun.h | |
198 | # | |
e8edd1e6 | 199 | open(BYTERUN_H, ">ext/ByteLoader/byterun.h") or die "ext/ByteLoader/byterun.h: $!"; |
a8a597b2 | 200 | print BYTERUN_H $c_header, <<'EOT'; |
a8a597b2 MB |
201 | struct bytestream { |
202 | void *data; | |
4f63d024 GS |
203 | int (*pfgetc)(void *); |
204 | int (*pfread)(char *, size_t, size_t, void *); | |
205 | void (*pfreadpv)(U32, void *, XPV *); | |
a8a597b2 | 206 | }; |
a8a597b2 | 207 | |
a8a597b2 MB |
208 | enum { |
209 | EOT | |
210 | ||
a8a597b2 MB |
211 | my $add_enum_value = 0; |
212 | my $max_insn; | |
213 | for ($i = 0; $i < @insn_name; $i++) { | |
214 | $insn = uc($insn_name[$i]); | |
215 | if (defined($insn)) { | |
216 | $max_insn = $i; | |
217 | if ($add_enum_value) { | |
218 | print BYTERUN_H " INSN_$insn = $i,\t\t\t/* $i */\n"; | |
219 | $add_enum_value = 0; | |
220 | } else { | |
221 | print BYTERUN_H " INSN_$insn,\t\t\t/* $i */\n"; | |
222 | } | |
223 | } else { | |
224 | $add_enum_value = 1; | |
225 | } | |
226 | } | |
227 | ||
228 | print BYTERUN_H " MAX_INSN = $max_insn\n};\n"; | |
229 | ||
230 | print BYTERUN_H "\nenum {\n"; | |
231 | for ($i = 0; $i < @optype - 1; $i++) { | |
232 | printf BYTERUN_H " OPt_%s,\t\t/* %d */\n", $optype[$i], $i; | |
233 | } | |
234 | printf BYTERUN_H " OPt_%s\t\t/* %d */\n};\n\n", $optype[$i], $i; | |
a8a597b2 | 235 | |
fe3a57c4 | 236 | print BYTERUN_H <<'EOT'; |
b78218b7 | 237 | extern void byterun(pTHXo_ struct bytestream bs); |
0cb96387 | 238 | |
a8a597b2 MB |
239 | #define INIT_SPECIALSV_LIST STMT_START { \ |
240 | EOT | |
241 | for ($i = 0; $i < @specialsv; $i++) { | |
6b88bc9c | 242 | print BYTERUN_H "\tPL_specialsv_list[$i] = $specialsv[$i]; \\\n"; |
a8a597b2 MB |
243 | } |
244 | print BYTERUN_H <<'EOT'; | |
33b839e2 | 245 | } STMT_END |
a8a597b2 MB |
246 | EOT |
247 | ||
248 | # | |
249 | # Finish off insn_data and create array initialisers in Asmdata.pm | |
250 | # | |
251 | print ASMDATA_PM <<'EOT'; | |
252 | ||
253 | my ($insn_name, $insn_data); | |
254 | while (($insn_name, $insn_data) = each %insn_data) { | |
255 | $insn_name[$insn_data->[0]] = $insn_name; | |
256 | } | |
257 | # Fill in any gaps | |
258 | @insn_name = map($_ || "unused", @insn_name); | |
259 | ||
260 | 1; | |
42d3a99d GS |
261 | |
262 | __END__ | |
263 | ||
264 | =head1 NAME | |
265 | ||
266 | B::Asmdata - Autogenerated data about Perl ops, used to generate bytecode | |
267 | ||
268 | =head1 SYNOPSIS | |
269 | ||
270 | use Asmdata; | |
271 | ||
272 | =head1 DESCRIPTION | |
273 | ||
274 | See F<ext/B/B/Asmdata.pm>. | |
275 | ||
276 | =head1 AUTHOR | |
277 | ||
278 | Malcolm Beattie, C<mbeattie@sable.ox.ac.uk> | |
279 | ||
280 | =cut | |
a8a597b2 MB |
281 | EOT |
282 | ||
283 | __END__ | |
284 | # First set instruction ord("#") to read comment to end-of-line (sneaky) | |
285 | %number 35 | |
fe3a57c4 | 286 | comment arg comment_t |
a8a597b2 MB |
287 | # Then make ord("\n") into a no-op |
288 | %number 10 | |
289 | nop none none | |
290 | # Now for the rest of the ordinary ones, beginning with \0 which is | |
291 | # ret so that \0-terminated strings can be read properly as bytecode. | |
292 | %number 0 | |
293 | # | |
92742e37 | 294 | #opcode lvalue argtype flags |
a8a597b2 | 295 | # |
92742e37 | 296 | ret none none x |
e8edd1e6 | 297 | ldsv bytecode_sv svindex |
92742e37 | 298 | ldop PL_op opindex |
e8edd1e6 | 299 | stsv bytecode_sv U32 s |
92742e37 | 300 | stop PL_op U32 s |
e8edd1e6 TH |
301 | ldspecsv bytecode_sv U8 x |
302 | newsv bytecode_sv U8 x | |
92742e37 GS |
303 | newop PL_op U8 x |
304 | newopn PL_op U8 x | |
305 | newpv none PV | |
e8edd1e6 TH |
306 | pv_cur bytecode_pv.xpv_cur STRLEN |
307 | pv_free bytecode_pv none x | |
308 | sv_upgrade bytecode_sv char x | |
309 | sv_refcnt SvREFCNT(bytecode_sv) U32 | |
310 | sv_refcnt_add SvREFCNT(bytecode_sv) I32 x | |
311 | sv_flags SvFLAGS(bytecode_sv) U32 | |
312 | xrv SvRV(bytecode_sv) svindex | |
313 | xpv bytecode_sv none x | |
314 | xiv32 SvIVX(bytecode_sv) I32 | |
315 | xiv64 SvIVX(bytecode_sv) IV64 | |
65202027 | 316 | xnv SvNVX(bytecode_sv) NV |
e8edd1e6 TH |
317 | xlv_targoff LvTARGOFF(bytecode_sv) STRLEN |
318 | xlv_targlen LvTARGLEN(bytecode_sv) STRLEN | |
319 | xlv_targ LvTARG(bytecode_sv) svindex | |
320 | xlv_type LvTYPE(bytecode_sv) char | |
321 | xbm_useful BmUSEFUL(bytecode_sv) I32 | |
322 | xbm_previous BmPREVIOUS(bytecode_sv) U16 | |
323 | xbm_rare BmRARE(bytecode_sv) U8 | |
324 | xfm_lines FmLINES(bytecode_sv) I32 | |
325 | xio_lines IoLINES(bytecode_sv) long | |
326 | xio_page IoPAGE(bytecode_sv) long | |
327 | xio_page_len IoPAGE_LEN(bytecode_sv) long | |
328 | xio_lines_left IoLINES_LEFT(bytecode_sv) long | |
329 | xio_top_name IoTOP_NAME(bytecode_sv) pvcontents | |
330 | xio_top_gv *(SV**)&IoTOP_GV(bytecode_sv) svindex | |
331 | xio_fmt_name IoFMT_NAME(bytecode_sv) pvcontents | |
332 | xio_fmt_gv *(SV**)&IoFMT_GV(bytecode_sv) svindex | |
333 | xio_bottom_name IoBOTTOM_NAME(bytecode_sv) pvcontents | |
334 | xio_bottom_gv *(SV**)&IoBOTTOM_GV(bytecode_sv) svindex | |
335 | xio_subprocess IoSUBPROCESS(bytecode_sv) short | |
336 | xio_type IoTYPE(bytecode_sv) char | |
337 | xio_flags IoFLAGS(bytecode_sv) char | |
338 | xcv_stash *(SV**)&CvSTASH(bytecode_sv) svindex | |
339 | xcv_start CvSTART(bytecode_sv) opindex | |
340 | xcv_root CvROOT(bytecode_sv) opindex | |
341 | xcv_gv *(SV**)&CvGV(bytecode_sv) svindex | |
57843af0 | 342 | xcv_file CvFILE(bytecode_sv) pvcontents |
e8edd1e6 TH |
343 | xcv_depth CvDEPTH(bytecode_sv) long |
344 | xcv_padlist *(SV**)&CvPADLIST(bytecode_sv) svindex | |
345 | xcv_outside *(SV**)&CvOUTSIDE(bytecode_sv) svindex | |
346 | xcv_flags CvFLAGS(bytecode_sv) U8 | |
347 | av_extend bytecode_sv SSize_t x | |
348 | av_push bytecode_sv svindex x | |
349 | xav_fill AvFILLp(bytecode_sv) SSize_t | |
350 | xav_max AvMAX(bytecode_sv) SSize_t | |
351 | xav_flags AvFLAGS(bytecode_sv) U8 | |
352 | xhv_riter HvRITER(bytecode_sv) I32 | |
353 | xhv_name HvNAME(bytecode_sv) pvcontents | |
354 | hv_store bytecode_sv svindex x | |
355 | sv_magic bytecode_sv char x | |
356 | mg_obj SvMAGIC(bytecode_sv)->mg_obj svindex | |
357 | mg_private SvMAGIC(bytecode_sv)->mg_private U16 | |
358 | mg_flags SvMAGIC(bytecode_sv)->mg_flags U8 | |
359 | mg_pv SvMAGIC(bytecode_sv) pvcontents x | |
360 | xmg_stash *(SV**)&SvSTASH(bytecode_sv) svindex | |
361 | gv_fetchpv bytecode_sv strconst x | |
362 | gv_stashpv bytecode_sv strconst x | |
363 | gp_sv GvSV(bytecode_sv) svindex | |
364 | gp_refcnt GvREFCNT(bytecode_sv) U32 | |
365 | gp_refcnt_add GvREFCNT(bytecode_sv) I32 x | |
366 | gp_av *(SV**)&GvAV(bytecode_sv) svindex | |
367 | gp_hv *(SV**)&GvHV(bytecode_sv) svindex | |
368 | gp_cv *(SV**)&GvCV(bytecode_sv) svindex | |
b195d487 | 369 | gp_file GvFILE(bytecode_sv) pvcontents |
e8edd1e6 TH |
370 | gp_io *(SV**)&GvIOp(bytecode_sv) svindex |
371 | gp_form *(SV**)&GvFORM(bytecode_sv) svindex | |
372 | gp_cvgen GvCVGEN(bytecode_sv) U32 | |
373 | gp_line GvLINE(bytecode_sv) line_t | |
374 | gp_share bytecode_sv svindex x | |
375 | xgv_flags GvFLAGS(bytecode_sv) U8 | |
92742e37 GS |
376 | op_next PL_op->op_next opindex |
377 | op_sibling PL_op->op_sibling opindex | |
378 | op_ppaddr PL_op->op_ppaddr strconst x | |
379 | op_targ PL_op->op_targ PADOFFSET | |
380 | op_type PL_op OPCODE x | |
381 | op_seq PL_op->op_seq U16 | |
382 | op_flags PL_op->op_flags U8 | |
383 | op_private PL_op->op_private U8 | |
384 | op_first cUNOP->op_first opindex | |
385 | op_last cBINOP->op_last opindex | |
386 | op_other cLOGOP->op_other opindex | |
92742e37 GS |
387 | op_children cLISTOP->op_children U32 |
388 | op_pmreplroot cPMOP->op_pmreplroot opindex | |
389 | op_pmreplrootgv *(SV**)&cPMOP->op_pmreplroot svindex | |
390 | op_pmreplstart cPMOP->op_pmreplstart opindex | |
391 | op_pmnext *(OP**)&cPMOP->op_pmnext opindex | |
392 | pregcomp PL_op pvcontents x | |
393 | op_pmflags cPMOP->op_pmflags U16 | |
394 | op_pmpermflags cPMOP->op_pmpermflags U16 | |
395 | op_sv cSVOP->op_sv svindex | |
7934575e | 396 | op_padix cPADOP->op_padix PADOFFSET |
92742e37 GS |
397 | op_pv cPVOP->op_pv pvcontents |
398 | op_pv_tr cPVOP->op_pv op_tr_array | |
399 | op_redoop cLOOP->op_redoop opindex | |
400 | op_nextop cLOOP->op_nextop opindex | |
401 | op_lastop cLOOP->op_lastop opindex | |
402 | cop_label cCOP->cop_label pvcontents | |
11faa288 | 403 | cop_stashpv cCOP pvcontents x |
57843af0 | 404 | cop_file cCOP pvcontents x |
92742e37 GS |
405 | cop_seq cCOP->cop_seq U32 |
406 | cop_arybase cCOP->cop_arybase I32 | |
57843af0 | 407 | cop_line cCOP line_t x |
b295d113 | 408 | cop_warnings cCOP->cop_warnings svindex |
92742e37 GS |
409 | main_start PL_main_start opindex |
410 | main_root PL_main_root opindex | |
411 | curpad PL_curpad svindex x |