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; | |
28b605d8 JH |
47 | |
48 | our $VERSION = '1.00'; | |
49 | ||
a8a597b2 MB |
50 | use Exporter; |
51 | @ISA = qw(Exporter); | |
52 | @EXPORT_OK = qw(%insn_data @insn_name @optype @specialsv_name); | |
1b11e67e | 53 | our(%insn_data, @insn_name, @optype, @specialsv_name); |
a8a597b2 MB |
54 | |
55 | EOT | |
56 | print ASMDATA_PM <<"EOT"; | |
57 | \@optype = qw(@optype); | |
58 | \@specialsv_name = qw(@specialsv); | |
59 | ||
60 | # XXX insn_data is initialised this way because with a large | |
61 | # %insn_data = (foo => [...], bar => [...], ...) initialiser | |
62 | # I get a hard-to-track-down stack underflow and segfault. | |
63 | EOT | |
64 | ||
65 | # | |
66 | # Boilerplate for byterun.c | |
67 | # | |
e8edd1e6 | 68 | open(BYTERUN_C, ">ext/ByteLoader/byterun.c") or die "ext/ByteLoader/byterun.c: $!"; |
a8a597b2 MB |
69 | print BYTERUN_C $c_header, <<'EOT'; |
70 | ||
c5be433b | 71 | #define PERL_NO_GET_CONTEXT |
a8a597b2 MB |
72 | #include "EXTERN.h" |
73 | #include "perl.h" | |
0cb96387 GS |
74 | #define NO_XSLOCKS |
75 | #include "XSUB.h" | |
76 | ||
e8edd1e6 TH |
77 | #include "byterun.h" |
78 | #include "bytecode.h" | |
79 | ||
0cb96387 | 80 | |
059a8bb7 | 81 | static const int optype_size[] = { |
e8edd1e6 TH |
82 | EOT |
83 | my $i = 0; | |
84 | for ($i = 0; $i < @optype - 1; $i++) { | |
85 | printf BYTERUN_C " sizeof(%s),\n", $optype[$i], $i; | |
86 | } | |
87 | printf BYTERUN_C " sizeof(%s)\n", $optype[$i], $i; | |
88 | print BYTERUN_C <<'EOT'; | |
89 | }; | |
90 | ||
d613ef02 | 91 | void * |
acfe0abc | 92 | bset_obj_store(pTHX_ struct byteloader_state *bstate, void *obj, I32 ix) |
d613ef02 | 93 | { |
059a8bb7 JH |
94 | if (ix > bstate->bs_obj_list_fill) { |
95 | Renew(bstate->bs_obj_list, ix + 32, void*); | |
96 | bstate->bs_obj_list_fill = ix + 31; | |
d613ef02 | 97 | } |
059a8bb7 | 98 | bstate->bs_obj_list[ix] = obj; |
d613ef02 GS |
99 | return obj; |
100 | } | |
a8a597b2 | 101 | |
cea2e8a9 | 102 | void |
acfe0abc | 103 | byterun(pTHX_ register struct byteloader_state *bstate) |
a8a597b2 | 104 | { |
059a8bb7 JH |
105 | register int insn; |
106 | U32 ix; | |
107 | SV *specialsv_list[6]; | |
108 | ||
109 | BYTECODE_HEADER_CHECK; /* croak if incorrect platform */ | |
110 | New(666, bstate->bs_obj_list, 32, void*); /* set op objlist */ | |
111 | bstate->bs_obj_list_fill = 31; | |
e8edd1e6 TH |
112 | |
113 | EOT | |
114 | ||
e3751d82 | 115 | for my $i ( 0 .. $#specialsv ) { |
e8edd1e6 TH |
116 | print BYTERUN_C " specialsv_list[$i] = $specialsv[$i];\n"; |
117 | } | |
118 | ||
119 | print BYTERUN_C <<'EOT'; | |
120 | ||
47358472 | 121 | while ((insn = BGET_FGETC()) != EOF) { |
a8a597b2 MB |
122 | switch (insn) { |
123 | EOT | |
124 | ||
125 | ||
126 | my (@insn_name, $insn_num, $insn, $lvalue, $argtype, $flags, $fundtype); | |
127 | ||
128 | while (<DATA>) { | |
129 | chop; | |
130 | s/#.*//; # remove comments | |
131 | next unless length; | |
132 | if (/^%number\s+(.*)/) { | |
133 | $insn_num = $1; | |
134 | next; | |
135 | } elsif (/%enum\s+(.*?)\s+(.*)/) { | |
136 | create_enum($1, $2); # must come before instructions | |
137 | next; | |
138 | } | |
139 | ($insn, $lvalue, $argtype, $flags) = split; | |
140 | $insn_name[$insn_num] = $insn; | |
141 | $fundtype = $alias_from{$argtype} || $argtype; | |
142 | ||
143 | # | |
144 | # Add the case statement and code for the bytecode interpreter in byterun.c | |
145 | # | |
146 | printf BYTERUN_C "\t case INSN_%s:\t\t/* %d */\n\t {\n", | |
147 | uc($insn), $insn_num; | |
148 | my $optarg = $argtype eq "none" ? "" : ", arg"; | |
149 | if ($optarg) { | |
150 | printf BYTERUN_C "\t\t$argtype arg;\n\t\tBGET_%s(arg);\n", $fundtype; | |
151 | } | |
152 | if ($flags =~ /x/) { | |
153 | print BYTERUN_C "\t\tBSET_$insn($lvalue$optarg);\n"; | |
154 | } elsif ($flags =~ /s/) { | |
e8edd1e6 | 155 | # Store instructions store to bytecode_obj_list[arg]. "lvalue" field is rvalue. |
a8a597b2 MB |
156 | print BYTERUN_C "\t\tBSET_OBJ_STORE($lvalue$optarg);\n"; |
157 | } | |
158 | elsif ($optarg && $lvalue ne "none") { | |
159 | print BYTERUN_C "\t\t$lvalue = arg;\n"; | |
160 | } | |
161 | print BYTERUN_C "\t\tbreak;\n\t }\n"; | |
162 | ||
163 | # | |
164 | # Add the initialiser line for %insn_data in Asmdata.pm | |
165 | # | |
166 | print ASMDATA_PM <<"EOT"; | |
167 | \$insn_data{$insn} = [$insn_num, \\&PUT_$fundtype, "GET_$fundtype"]; | |
168 | EOT | |
169 | ||
170 | # Find the next unused instruction number | |
171 | do { $insn_num++ } while $insn_name[$insn_num]; | |
172 | } | |
173 | ||
174 | # | |
175 | # Finish off byterun.c | |
176 | # | |
177 | print BYTERUN_C <<'EOT'; | |
178 | default: | |
cea2e8a9 | 179 | Perl_croak(aTHX_ "Illegal bytecode instruction %d\n", insn); |
a8a597b2 MB |
180 | /* NOTREACHED */ |
181 | } | |
182 | } | |
183 | } | |
184 | EOT | |
185 | ||
186 | # | |
187 | # Write the instruction and optype enum constants into byterun.h | |
188 | # | |
e8edd1e6 | 189 | open(BYTERUN_H, ">ext/ByteLoader/byterun.h") or die "ext/ByteLoader/byterun.h: $!"; |
a8a597b2 | 190 | print BYTERUN_H $c_header, <<'EOT'; |
059a8bb7 JH |
191 | struct byteloader_fdata { |
192 | SV *datasv; | |
193 | int next_out; | |
194 | int idx; | |
a8a597b2 | 195 | }; |
a8a597b2 | 196 | |
059a8bb7 JH |
197 | struct byteloader_state { |
198 | struct byteloader_fdata *bs_fdata; | |
199 | SV *bs_sv; | |
200 | void **bs_obj_list; | |
201 | int bs_obj_list_fill; | |
202 | XPV bs_pv; | |
203 | int bs_iv_overflows; | |
204 | }; | |
205 | ||
206 | int bl_getc(struct byteloader_fdata *); | |
207 | int bl_read(struct byteloader_fdata *, char *, size_t, size_t); | |
acfe0abc | 208 | extern void byterun(pTHX_ struct byteloader_state *); |
059a8bb7 | 209 | |
a8a597b2 MB |
210 | enum { |
211 | EOT | |
212 | ||
a8a597b2 MB |
213 | my $add_enum_value = 0; |
214 | my $max_insn; | |
e3751d82 | 215 | for $i ( 0 .. $#insn_name ) { |
a8a597b2 MB |
216 | $insn = uc($insn_name[$i]); |
217 | if (defined($insn)) { | |
218 | $max_insn = $i; | |
219 | if ($add_enum_value) { | |
220 | print BYTERUN_H " INSN_$insn = $i,\t\t\t/* $i */\n"; | |
221 | $add_enum_value = 0; | |
222 | } else { | |
223 | print BYTERUN_H " INSN_$insn,\t\t\t/* $i */\n"; | |
224 | } | |
225 | } else { | |
226 | $add_enum_value = 1; | |
227 | } | |
228 | } | |
229 | ||
230 | print BYTERUN_H " MAX_INSN = $max_insn\n};\n"; | |
231 | ||
232 | print BYTERUN_H "\nenum {\n"; | |
233 | for ($i = 0; $i < @optype - 1; $i++) { | |
234 | printf BYTERUN_H " OPt_%s,\t\t/* %d */\n", $optype[$i], $i; | |
235 | } | |
236 | printf BYTERUN_H " OPt_%s\t\t/* %d */\n};\n\n", $optype[$i], $i; | |
a8a597b2 | 237 | |
a8a597b2 MB |
238 | # |
239 | # Finish off insn_data and create array initialisers in Asmdata.pm | |
240 | # | |
241 | print ASMDATA_PM <<'EOT'; | |
242 | ||
243 | my ($insn_name, $insn_data); | |
244 | while (($insn_name, $insn_data) = each %insn_data) { | |
245 | $insn_name[$insn_data->[0]] = $insn_name; | |
246 | } | |
247 | # Fill in any gaps | |
248 | @insn_name = map($_ || "unused", @insn_name); | |
249 | ||
250 | 1; | |
42d3a99d GS |
251 | |
252 | __END__ | |
253 | ||
254 | =head1 NAME | |
255 | ||
256 | B::Asmdata - Autogenerated data about Perl ops, used to generate bytecode | |
257 | ||
258 | =head1 SYNOPSIS | |
259 | ||
4162ffa6 | 260 | use B::Asmdata qw(%insn_data @insn_name @optype @specialsv_name); |
42d3a99d GS |
261 | |
262 | =head1 DESCRIPTION | |
263 | ||
4162ffa6 MS |
264 | Provides information about Perl ops in order to generate bytecode via |
265 | a bunch of exported variables. Its mostly used by B::Assembler and | |
266 | B::Disassembler. | |
267 | ||
268 | =over 4 | |
269 | ||
270 | =item %insn_data | |
271 | ||
272 | my($bytecode_num, $put_sub, $get_meth) = @$insn_data{$op_name}; | |
273 | ||
274 | For a given $op_name (for example, 'cop_label', 'sv_flags', etc...) | |
275 | you get an array ref containing the bytecode number of the op, a | |
276 | reference to the subroutine used to 'PUT', and the name of the method | |
277 | used to 'GET'. | |
278 | ||
279 | =for _private | |
280 | Add more detail about what $put_sub and $get_meth are and how to use them. | |
281 | ||
282 | =item @insn_name | |
283 | ||
284 | my $op_name = $insn_name[$bytecode_num]; | |
285 | ||
286 | A simple mapping of the bytecode number to the name of the op. | |
287 | Suitable for using with %insn_data like so: | |
288 | ||
289 | my $op_info = $insn_data{$insn_name[$bytecode_num]}; | |
290 | ||
291 | =item @optype | |
292 | ||
293 | my $op_type = $optype[$op_type_num]; | |
294 | ||
295 | A simple mapping of the op type number to its type (like 'COP' or 'BINOP'). | |
296 | ||
297 | =item @specialsv_name | |
298 | ||
299 | my $sv_name = $specialsv_name[$sv_index]; | |
300 | ||
301 | Certain SV types are considered 'special'. They're represented by | |
302 | B::SPECIAL and are refered to by a number from the specialsv_list. | |
303 | This array maps that number back to the name of the SV (like 'Nullsv' | |
304 | or '&PL_sv_undef'). | |
305 | ||
306 | =back | |
42d3a99d GS |
307 | |
308 | =head1 AUTHOR | |
309 | ||
310 | Malcolm Beattie, C<mbeattie@sable.ox.ac.uk> | |
311 | ||
312 | =cut | |
a8a597b2 MB |
313 | EOT |
314 | ||
315 | __END__ | |
316 | # First set instruction ord("#") to read comment to end-of-line (sneaky) | |
317 | %number 35 | |
fe3a57c4 | 318 | comment arg comment_t |
a8a597b2 MB |
319 | # Then make ord("\n") into a no-op |
320 | %number 10 | |
321 | nop none none | |
322 | # Now for the rest of the ordinary ones, beginning with \0 which is | |
323 | # ret so that \0-terminated strings can be read properly as bytecode. | |
324 | %number 0 | |
325 | # | |
92742e37 | 326 | #opcode lvalue argtype flags |
a8a597b2 | 327 | # |
92742e37 | 328 | ret none none x |
059a8bb7 | 329 | ldsv bstate->bs_sv svindex |
92742e37 | 330 | ldop PL_op opindex |
059a8bb7 | 331 | stsv bstate->bs_sv U32 s |
92742e37 | 332 | stop PL_op U32 s |
059a8bb7 JH |
333 | stpv bstate->bs_pv.xpv_pv U32 x |
334 | ldspecsv bstate->bs_sv U8 x | |
335 | newsv bstate->bs_sv U8 x | |
92742e37 GS |
336 | newop PL_op U8 x |
337 | newopn PL_op U8 x | |
338 | newpv none PV | |
059a8bb7 JH |
339 | pv_cur bstate->bs_pv.xpv_cur STRLEN |
340 | pv_free bstate->bs_pv none x | |
6e21dc91 | 341 | sv_upgrade bstate->bs_sv U8 x |
059a8bb7 JH |
342 | sv_refcnt SvREFCNT(bstate->bs_sv) U32 |
343 | sv_refcnt_add SvREFCNT(bstate->bs_sv) I32 x | |
344 | sv_flags SvFLAGS(bstate->bs_sv) U32 | |
345 | xrv SvRV(bstate->bs_sv) svindex | |
346 | xpv bstate->bs_sv none x | |
347 | xiv32 SvIVX(bstate->bs_sv) I32 | |
348 | xiv64 SvIVX(bstate->bs_sv) IV64 | |
349 | xnv SvNVX(bstate->bs_sv) NV | |
350 | xlv_targoff LvTARGOFF(bstate->bs_sv) STRLEN | |
351 | xlv_targlen LvTARGLEN(bstate->bs_sv) STRLEN | |
352 | xlv_targ LvTARG(bstate->bs_sv) svindex | |
353 | xlv_type LvTYPE(bstate->bs_sv) char | |
354 | xbm_useful BmUSEFUL(bstate->bs_sv) I32 | |
355 | xbm_previous BmPREVIOUS(bstate->bs_sv) U16 | |
356 | xbm_rare BmRARE(bstate->bs_sv) U8 | |
11a7ac70 JH |
357 | xfm_lines FmLINES(bstate->bs_sv) IV |
358 | xio_lines IoLINES(bstate->bs_sv) IV | |
359 | xio_page IoPAGE(bstate->bs_sv) IV | |
360 | xio_page_len IoPAGE_LEN(bstate->bs_sv) IV | |
361 | xio_lines_left IoLINES_LEFT(bstate->bs_sv) IV | |
059a8bb7 JH |
362 | xio_top_name IoTOP_NAME(bstate->bs_sv) pvcontents |
363 | xio_top_gv *(SV**)&IoTOP_GV(bstate->bs_sv) svindex | |
364 | xio_fmt_name IoFMT_NAME(bstate->bs_sv) pvcontents | |
365 | xio_fmt_gv *(SV**)&IoFMT_GV(bstate->bs_sv) svindex | |
366 | xio_bottom_name IoBOTTOM_NAME(bstate->bs_sv) pvcontents | |
367 | xio_bottom_gv *(SV**)&IoBOTTOM_GV(bstate->bs_sv) svindex | |
368 | xio_subprocess IoSUBPROCESS(bstate->bs_sv) short | |
369 | xio_type IoTYPE(bstate->bs_sv) char | |
370 | xio_flags IoFLAGS(bstate->bs_sv) char | |
371 | xcv_stash *(SV**)&CvSTASH(bstate->bs_sv) svindex | |
372 | xcv_start CvSTART(bstate->bs_sv) opindex | |
373 | xcv_root CvROOT(bstate->bs_sv) opindex | |
374 | xcv_gv *(SV**)&CvGV(bstate->bs_sv) svindex | |
375 | xcv_file CvFILE(bstate->bs_sv) pvindex | |
376 | xcv_depth CvDEPTH(bstate->bs_sv) long | |
377 | xcv_padlist *(SV**)&CvPADLIST(bstate->bs_sv) svindex | |
378 | xcv_outside *(SV**)&CvOUTSIDE(bstate->bs_sv) svindex | |
379 | xcv_flags CvFLAGS(bstate->bs_sv) U16 | |
380 | av_extend bstate->bs_sv SSize_t x | |
381 | av_push bstate->bs_sv svindex x | |
382 | xav_fill AvFILLp(bstate->bs_sv) SSize_t | |
383 | xav_max AvMAX(bstate->bs_sv) SSize_t | |
384 | xav_flags AvFLAGS(bstate->bs_sv) U8 | |
385 | xhv_riter HvRITER(bstate->bs_sv) I32 | |
386 | xhv_name HvNAME(bstate->bs_sv) pvcontents | |
387 | hv_store bstate->bs_sv svindex x | |
388 | sv_magic bstate->bs_sv char x | |
389 | mg_obj SvMAGIC(bstate->bs_sv)->mg_obj svindex | |
390 | mg_private SvMAGIC(bstate->bs_sv)->mg_private U16 | |
391 | mg_flags SvMAGIC(bstate->bs_sv)->mg_flags U8 | |
392 | mg_pv SvMAGIC(bstate->bs_sv) pvcontents x | |
393 | xmg_stash *(SV**)&SvSTASH(bstate->bs_sv) svindex | |
394 | gv_fetchpv bstate->bs_sv strconst x | |
395 | gv_stashpv bstate->bs_sv strconst x | |
396 | gp_sv GvSV(bstate->bs_sv) svindex | |
397 | gp_refcnt GvREFCNT(bstate->bs_sv) U32 | |
398 | gp_refcnt_add GvREFCNT(bstate->bs_sv) I32 x | |
399 | gp_av *(SV**)&GvAV(bstate->bs_sv) svindex | |
400 | gp_hv *(SV**)&GvHV(bstate->bs_sv) svindex | |
401 | gp_cv *(SV**)&GvCV(bstate->bs_sv) svindex | |
402 | gp_file GvFILE(bstate->bs_sv) pvindex | |
403 | gp_io *(SV**)&GvIOp(bstate->bs_sv) svindex | |
404 | gp_form *(SV**)&GvFORM(bstate->bs_sv) svindex | |
405 | gp_cvgen GvCVGEN(bstate->bs_sv) U32 | |
406 | gp_line GvLINE(bstate->bs_sv) line_t | |
407 | gp_share bstate->bs_sv svindex x | |
408 | xgv_flags GvFLAGS(bstate->bs_sv) U8 | |
92742e37 GS |
409 | op_next PL_op->op_next opindex |
410 | op_sibling PL_op->op_sibling opindex | |
411 | op_ppaddr PL_op->op_ppaddr strconst x | |
412 | op_targ PL_op->op_targ PADOFFSET | |
413 | op_type PL_op OPCODE x | |
414 | op_seq PL_op->op_seq U16 | |
415 | op_flags PL_op->op_flags U8 | |
416 | op_private PL_op->op_private U8 | |
417 | op_first cUNOP->op_first opindex | |
418 | op_last cBINOP->op_last opindex | |
419 | op_other cLOGOP->op_other opindex | |
92742e37 GS |
420 | op_pmreplroot cPMOP->op_pmreplroot opindex |
421 | op_pmreplrootgv *(SV**)&cPMOP->op_pmreplroot svindex | |
422 | op_pmreplstart cPMOP->op_pmreplstart opindex | |
423 | op_pmnext *(OP**)&cPMOP->op_pmnext opindex | |
424 | pregcomp PL_op pvcontents x | |
425 | op_pmflags cPMOP->op_pmflags U16 | |
426 | op_pmpermflags cPMOP->op_pmpermflags U16 | |
427 | op_sv cSVOP->op_sv svindex | |
7934575e | 428 | op_padix cPADOP->op_padix PADOFFSET |
92742e37 GS |
429 | op_pv cPVOP->op_pv pvcontents |
430 | op_pv_tr cPVOP->op_pv op_tr_array | |
431 | op_redoop cLOOP->op_redoop opindex | |
432 | op_nextop cLOOP->op_nextop opindex | |
433 | op_lastop cLOOP->op_lastop opindex | |
059a8bb7 JH |
434 | cop_label cCOP->cop_label pvindex |
435 | cop_stashpv cCOP pvindex x | |
436 | cop_file cCOP pvindex x | |
92742e37 GS |
437 | cop_seq cCOP->cop_seq U32 |
438 | cop_arybase cCOP->cop_arybase I32 | |
57843af0 | 439 | cop_line cCOP line_t x |
b295d113 | 440 | cop_warnings cCOP->cop_warnings svindex |
92742e37 GS |
441 | main_start PL_main_start opindex |
442 | main_root PL_main_root opindex | |
443 | curpad PL_curpad svindex x | |
059a8bb7 JH |
444 | push_begin PL_beginav svindex x |
445 | push_init PL_initav svindex x | |
446 | push_end PL_endav svindex x |