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). | |
059a8bb7 | 16 | my @specialsv = qw(Nullsv &PL_sv_undef &PL_sv_yes &PL_sv_no pWARN_ALL pWARN_NONE); |
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 | |
059a8bb7 | 85 | static const int optype_size[] = { |
e8edd1e6 TH |
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 | ||
d613ef02 | 95 | void * |
059a8bb7 | 96 | bset_obj_store(pTHXo_ struct byteloader_state *bstate, void *obj, I32 ix) |
d613ef02 | 97 | { |
059a8bb7 JH |
98 | if (ix > bstate->bs_obj_list_fill) { |
99 | Renew(bstate->bs_obj_list, ix + 32, void*); | |
100 | bstate->bs_obj_list_fill = ix + 31; | |
d613ef02 | 101 | } |
059a8bb7 | 102 | bstate->bs_obj_list[ix] = obj; |
d613ef02 GS |
103 | return obj; |
104 | } | |
a8a597b2 | 105 | |
cea2e8a9 | 106 | void |
059a8bb7 | 107 | byterun(pTHXo_ register struct byteloader_state *bstate) |
a8a597b2 | 108 | { |
059a8bb7 JH |
109 | register int insn; |
110 | U32 ix; | |
111 | SV *specialsv_list[6]; | |
112 | ||
113 | BYTECODE_HEADER_CHECK; /* croak if incorrect platform */ | |
114 | New(666, bstate->bs_obj_list, 32, void*); /* set op objlist */ | |
115 | bstate->bs_obj_list_fill = 31; | |
e8edd1e6 TH |
116 | |
117 | EOT | |
118 | ||
119 | for (my $i = 0; $i < @specialsv; $i++) { | |
120 | print BYTERUN_C " specialsv_list[$i] = $specialsv[$i];\n"; | |
121 | } | |
122 | ||
123 | print BYTERUN_C <<'EOT'; | |
124 | ||
47358472 | 125 | while ((insn = BGET_FGETC()) != EOF) { |
a8a597b2 MB |
126 | switch (insn) { |
127 | EOT | |
128 | ||
129 | ||
130 | my (@insn_name, $insn_num, $insn, $lvalue, $argtype, $flags, $fundtype); | |
131 | ||
132 | while (<DATA>) { | |
133 | chop; | |
134 | s/#.*//; # remove comments | |
135 | next unless length; | |
136 | if (/^%number\s+(.*)/) { | |
137 | $insn_num = $1; | |
138 | next; | |
139 | } elsif (/%enum\s+(.*?)\s+(.*)/) { | |
140 | create_enum($1, $2); # must come before instructions | |
141 | next; | |
142 | } | |
143 | ($insn, $lvalue, $argtype, $flags) = split; | |
144 | $insn_name[$insn_num] = $insn; | |
145 | $fundtype = $alias_from{$argtype} || $argtype; | |
146 | ||
147 | # | |
148 | # Add the case statement and code for the bytecode interpreter in byterun.c | |
149 | # | |
150 | printf BYTERUN_C "\t case INSN_%s:\t\t/* %d */\n\t {\n", | |
151 | uc($insn), $insn_num; | |
152 | my $optarg = $argtype eq "none" ? "" : ", arg"; | |
153 | if ($optarg) { | |
154 | printf BYTERUN_C "\t\t$argtype arg;\n\t\tBGET_%s(arg);\n", $fundtype; | |
155 | } | |
156 | if ($flags =~ /x/) { | |
157 | print BYTERUN_C "\t\tBSET_$insn($lvalue$optarg);\n"; | |
158 | } elsif ($flags =~ /s/) { | |
e8edd1e6 | 159 | # Store instructions store to bytecode_obj_list[arg]. "lvalue" field is rvalue. |
a8a597b2 MB |
160 | print BYTERUN_C "\t\tBSET_OBJ_STORE($lvalue$optarg);\n"; |
161 | } | |
162 | elsif ($optarg && $lvalue ne "none") { | |
163 | print BYTERUN_C "\t\t$lvalue = arg;\n"; | |
164 | } | |
165 | print BYTERUN_C "\t\tbreak;\n\t }\n"; | |
166 | ||
167 | # | |
168 | # Add the initialiser line for %insn_data in Asmdata.pm | |
169 | # | |
170 | print ASMDATA_PM <<"EOT"; | |
171 | \$insn_data{$insn} = [$insn_num, \\&PUT_$fundtype, "GET_$fundtype"]; | |
172 | EOT | |
173 | ||
174 | # Find the next unused instruction number | |
175 | do { $insn_num++ } while $insn_name[$insn_num]; | |
176 | } | |
177 | ||
178 | # | |
179 | # Finish off byterun.c | |
180 | # | |
181 | print BYTERUN_C <<'EOT'; | |
182 | default: | |
cea2e8a9 | 183 | Perl_croak(aTHX_ "Illegal bytecode instruction %d\n", insn); |
a8a597b2 MB |
184 | /* NOTREACHED */ |
185 | } | |
186 | } | |
187 | } | |
188 | EOT | |
189 | ||
190 | # | |
191 | # Write the instruction and optype enum constants into byterun.h | |
192 | # | |
e8edd1e6 | 193 | open(BYTERUN_H, ">ext/ByteLoader/byterun.h") or die "ext/ByteLoader/byterun.h: $!"; |
a8a597b2 | 194 | print BYTERUN_H $c_header, <<'EOT'; |
059a8bb7 JH |
195 | struct byteloader_fdata { |
196 | SV *datasv; | |
197 | int next_out; | |
198 | int idx; | |
a8a597b2 | 199 | }; |
a8a597b2 | 200 | |
059a8bb7 JH |
201 | struct byteloader_state { |
202 | struct byteloader_fdata *bs_fdata; | |
203 | SV *bs_sv; | |
204 | void **bs_obj_list; | |
205 | int bs_obj_list_fill; | |
206 | XPV bs_pv; | |
207 | int bs_iv_overflows; | |
208 | }; | |
209 | ||
210 | int bl_getc(struct byteloader_fdata *); | |
211 | int bl_read(struct byteloader_fdata *, char *, size_t, size_t); | |
212 | extern void byterun(pTHXo_ struct byteloader_state *); | |
213 | ||
a8a597b2 MB |
214 | enum { |
215 | EOT | |
216 | ||
a8a597b2 MB |
217 | my $add_enum_value = 0; |
218 | my $max_insn; | |
219 | for ($i = 0; $i < @insn_name; $i++) { | |
220 | $insn = uc($insn_name[$i]); | |
221 | if (defined($insn)) { | |
222 | $max_insn = $i; | |
223 | if ($add_enum_value) { | |
224 | print BYTERUN_H " INSN_$insn = $i,\t\t\t/* $i */\n"; | |
225 | $add_enum_value = 0; | |
226 | } else { | |
227 | print BYTERUN_H " INSN_$insn,\t\t\t/* $i */\n"; | |
228 | } | |
229 | } else { | |
230 | $add_enum_value = 1; | |
231 | } | |
232 | } | |
233 | ||
234 | print BYTERUN_H " MAX_INSN = $max_insn\n};\n"; | |
235 | ||
236 | print BYTERUN_H "\nenum {\n"; | |
237 | for ($i = 0; $i < @optype - 1; $i++) { | |
238 | printf BYTERUN_H " OPt_%s,\t\t/* %d */\n", $optype[$i], $i; | |
239 | } | |
240 | printf BYTERUN_H " OPt_%s\t\t/* %d */\n};\n\n", $optype[$i], $i; | |
a8a597b2 | 241 | |
a8a597b2 MB |
242 | # |
243 | # Finish off insn_data and create array initialisers in Asmdata.pm | |
244 | # | |
245 | print ASMDATA_PM <<'EOT'; | |
246 | ||
247 | my ($insn_name, $insn_data); | |
248 | while (($insn_name, $insn_data) = each %insn_data) { | |
249 | $insn_name[$insn_data->[0]] = $insn_name; | |
250 | } | |
251 | # Fill in any gaps | |
252 | @insn_name = map($_ || "unused", @insn_name); | |
253 | ||
254 | 1; | |
42d3a99d GS |
255 | |
256 | __END__ | |
257 | ||
258 | =head1 NAME | |
259 | ||
260 | B::Asmdata - Autogenerated data about Perl ops, used to generate bytecode | |
261 | ||
262 | =head1 SYNOPSIS | |
263 | ||
264 | use Asmdata; | |
265 | ||
266 | =head1 DESCRIPTION | |
267 | ||
268 | See F<ext/B/B/Asmdata.pm>. | |
269 | ||
270 | =head1 AUTHOR | |
271 | ||
272 | Malcolm Beattie, C<mbeattie@sable.ox.ac.uk> | |
273 | ||
274 | =cut | |
a8a597b2 MB |
275 | EOT |
276 | ||
277 | __END__ | |
278 | # First set instruction ord("#") to read comment to end-of-line (sneaky) | |
279 | %number 35 | |
fe3a57c4 | 280 | comment arg comment_t |
a8a597b2 MB |
281 | # Then make ord("\n") into a no-op |
282 | %number 10 | |
283 | nop none none | |
284 | # Now for the rest of the ordinary ones, beginning with \0 which is | |
285 | # ret so that \0-terminated strings can be read properly as bytecode. | |
286 | %number 0 | |
287 | # | |
92742e37 | 288 | #opcode lvalue argtype flags |
a8a597b2 | 289 | # |
92742e37 | 290 | ret none none x |
059a8bb7 | 291 | ldsv bstate->bs_sv svindex |
92742e37 | 292 | ldop PL_op opindex |
059a8bb7 | 293 | stsv bstate->bs_sv U32 s |
92742e37 | 294 | stop PL_op U32 s |
059a8bb7 JH |
295 | stpv bstate->bs_pv.xpv_pv U32 x |
296 | ldspecsv bstate->bs_sv U8 x | |
297 | newsv bstate->bs_sv U8 x | |
92742e37 GS |
298 | newop PL_op U8 x |
299 | newopn PL_op U8 x | |
300 | newpv none PV | |
059a8bb7 JH |
301 | pv_cur bstate->bs_pv.xpv_cur STRLEN |
302 | pv_free bstate->bs_pv none x | |
303 | sv_upgrade bstate->bs_sv char x | |
304 | sv_refcnt SvREFCNT(bstate->bs_sv) U32 | |
305 | sv_refcnt_add SvREFCNT(bstate->bs_sv) I32 x | |
306 | sv_flags SvFLAGS(bstate->bs_sv) U32 | |
307 | xrv SvRV(bstate->bs_sv) svindex | |
308 | xpv bstate->bs_sv none x | |
309 | xiv32 SvIVX(bstate->bs_sv) I32 | |
310 | xiv64 SvIVX(bstate->bs_sv) IV64 | |
311 | xnv SvNVX(bstate->bs_sv) NV | |
312 | xlv_targoff LvTARGOFF(bstate->bs_sv) STRLEN | |
313 | xlv_targlen LvTARGLEN(bstate->bs_sv) STRLEN | |
314 | xlv_targ LvTARG(bstate->bs_sv) svindex | |
315 | xlv_type LvTYPE(bstate->bs_sv) char | |
316 | xbm_useful BmUSEFUL(bstate->bs_sv) I32 | |
317 | xbm_previous BmPREVIOUS(bstate->bs_sv) U16 | |
318 | xbm_rare BmRARE(bstate->bs_sv) U8 | |
319 | xfm_lines FmLINES(bstate->bs_sv) I32 | |
320 | xio_lines IoLINES(bstate->bs_sv) long | |
321 | xio_page IoPAGE(bstate->bs_sv) long | |
322 | xio_page_len IoPAGE_LEN(bstate->bs_sv) long | |
323 | xio_lines_left IoLINES_LEFT(bstate->bs_sv) long | |
324 | xio_top_name IoTOP_NAME(bstate->bs_sv) pvcontents | |
325 | xio_top_gv *(SV**)&IoTOP_GV(bstate->bs_sv) svindex | |
326 | xio_fmt_name IoFMT_NAME(bstate->bs_sv) pvcontents | |
327 | xio_fmt_gv *(SV**)&IoFMT_GV(bstate->bs_sv) svindex | |
328 | xio_bottom_name IoBOTTOM_NAME(bstate->bs_sv) pvcontents | |
329 | xio_bottom_gv *(SV**)&IoBOTTOM_GV(bstate->bs_sv) svindex | |
330 | xio_subprocess IoSUBPROCESS(bstate->bs_sv) short | |
331 | xio_type IoTYPE(bstate->bs_sv) char | |
332 | xio_flags IoFLAGS(bstate->bs_sv) char | |
333 | xcv_stash *(SV**)&CvSTASH(bstate->bs_sv) svindex | |
334 | xcv_start CvSTART(bstate->bs_sv) opindex | |
335 | xcv_root CvROOT(bstate->bs_sv) opindex | |
336 | xcv_gv *(SV**)&CvGV(bstate->bs_sv) svindex | |
337 | xcv_file CvFILE(bstate->bs_sv) pvindex | |
338 | xcv_depth CvDEPTH(bstate->bs_sv) long | |
339 | xcv_padlist *(SV**)&CvPADLIST(bstate->bs_sv) svindex | |
340 | xcv_outside *(SV**)&CvOUTSIDE(bstate->bs_sv) svindex | |
341 | xcv_flags CvFLAGS(bstate->bs_sv) U16 | |
342 | av_extend bstate->bs_sv SSize_t x | |
343 | av_push bstate->bs_sv svindex x | |
344 | xav_fill AvFILLp(bstate->bs_sv) SSize_t | |
345 | xav_max AvMAX(bstate->bs_sv) SSize_t | |
346 | xav_flags AvFLAGS(bstate->bs_sv) U8 | |
347 | xhv_riter HvRITER(bstate->bs_sv) I32 | |
348 | xhv_name HvNAME(bstate->bs_sv) pvcontents | |
349 | hv_store bstate->bs_sv svindex x | |
350 | sv_magic bstate->bs_sv char x | |
351 | mg_obj SvMAGIC(bstate->bs_sv)->mg_obj svindex | |
352 | mg_private SvMAGIC(bstate->bs_sv)->mg_private U16 | |
353 | mg_flags SvMAGIC(bstate->bs_sv)->mg_flags U8 | |
354 | mg_pv SvMAGIC(bstate->bs_sv) pvcontents x | |
355 | xmg_stash *(SV**)&SvSTASH(bstate->bs_sv) svindex | |
356 | gv_fetchpv bstate->bs_sv strconst x | |
357 | gv_stashpv bstate->bs_sv strconst x | |
358 | gp_sv GvSV(bstate->bs_sv) svindex | |
359 | gp_refcnt GvREFCNT(bstate->bs_sv) U32 | |
360 | gp_refcnt_add GvREFCNT(bstate->bs_sv) I32 x | |
361 | gp_av *(SV**)&GvAV(bstate->bs_sv) svindex | |
362 | gp_hv *(SV**)&GvHV(bstate->bs_sv) svindex | |
363 | gp_cv *(SV**)&GvCV(bstate->bs_sv) svindex | |
364 | gp_file GvFILE(bstate->bs_sv) pvindex | |
365 | gp_io *(SV**)&GvIOp(bstate->bs_sv) svindex | |
366 | gp_form *(SV**)&GvFORM(bstate->bs_sv) svindex | |
367 | gp_cvgen GvCVGEN(bstate->bs_sv) U32 | |
368 | gp_line GvLINE(bstate->bs_sv) line_t | |
369 | gp_share bstate->bs_sv svindex x | |
370 | xgv_flags GvFLAGS(bstate->bs_sv) U8 | |
92742e37 GS |
371 | op_next PL_op->op_next opindex |
372 | op_sibling PL_op->op_sibling opindex | |
373 | op_ppaddr PL_op->op_ppaddr strconst x | |
374 | op_targ PL_op->op_targ PADOFFSET | |
375 | op_type PL_op OPCODE x | |
376 | op_seq PL_op->op_seq U16 | |
377 | op_flags PL_op->op_flags U8 | |
378 | op_private PL_op->op_private U8 | |
379 | op_first cUNOP->op_first opindex | |
380 | op_last cBINOP->op_last opindex | |
381 | op_other cLOGOP->op_other opindex | |
92742e37 GS |
382 | op_pmreplroot cPMOP->op_pmreplroot opindex |
383 | op_pmreplrootgv *(SV**)&cPMOP->op_pmreplroot svindex | |
384 | op_pmreplstart cPMOP->op_pmreplstart opindex | |
385 | op_pmnext *(OP**)&cPMOP->op_pmnext opindex | |
386 | pregcomp PL_op pvcontents x | |
387 | op_pmflags cPMOP->op_pmflags U16 | |
388 | op_pmpermflags cPMOP->op_pmpermflags U16 | |
389 | op_sv cSVOP->op_sv svindex | |
7934575e | 390 | op_padix cPADOP->op_padix PADOFFSET |
92742e37 GS |
391 | op_pv cPVOP->op_pv pvcontents |
392 | op_pv_tr cPVOP->op_pv op_tr_array | |
393 | op_redoop cLOOP->op_redoop opindex | |
394 | op_nextop cLOOP->op_nextop opindex | |
395 | op_lastop cLOOP->op_lastop opindex | |
059a8bb7 JH |
396 | cop_label cCOP->cop_label pvindex |
397 | cop_stashpv cCOP pvindex x | |
398 | cop_file cCOP pvindex x | |
92742e37 GS |
399 | cop_seq cCOP->cop_seq U32 |
400 | cop_arybase cCOP->cop_arybase I32 | |
57843af0 | 401 | cop_line cCOP line_t x |
b295d113 | 402 | cop_warnings cCOP->cop_warnings svindex |
92742e37 GS |
403 | main_start PL_main_start opindex |
404 | main_root PL_main_root opindex | |
405 | curpad PL_curpad svindex x | |
059a8bb7 JH |
406 | push_begin PL_beginav svindex x |
407 | push_init PL_initav svindex x | |
408 | push_end PL_endav svindex x |