[14544] | 1 | BEGIN { |
---|
| 2 | push @INC, './lib'; |
---|
| 3 | } |
---|
| 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)], |
---|
| 10 | ); |
---|
| 11 | |
---|
| 12 | my @optype= qw(OP UNOP BINOP LOGOP LISTOP PMOP SVOP PADOP 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). |
---|
| 16 | my @specialsv = qw(Nullsv &PL_sv_undef &PL_sv_yes &PL_sv_no); |
---|
| 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 | /* |
---|
| 25 | * Copyright (c) 1996-1999 Malcolm Beattie |
---|
| 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 | |
---|
| 39 | unlink "ext/ByteLoader/byterun.c", "ext/ByteLoader/byterun.h", "ext/B/B/Asmdata.pm"; |
---|
| 40 | |
---|
| 41 | # |
---|
| 42 | # Start with boilerplate for Asmdata.pm |
---|
| 43 | # |
---|
| 44 | open(ASMDATA_PM, ">ext/B/B/Asmdata.pm") or die "ext/B/B/Asmdata.pm: $!"; |
---|
| 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 | our(%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, ">ext/ByteLoader/byterun.c") or die "ext/ByteLoader/byterun.c: $!"; |
---|
| 66 | print BYTERUN_C $c_header, <<'EOT'; |
---|
| 67 | |
---|
| 68 | #define PERL_NO_GET_CONTEXT |
---|
| 69 | #include "EXTERN.h" |
---|
| 70 | #include "perl.h" |
---|
| 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 | |
---|
| 81 | #include "byterun.h" |
---|
| 82 | #include "bytecode.h" |
---|
| 83 | |
---|
| 84 | |
---|
| 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; |
---|
| 102 | |
---|
| 103 | void * |
---|
| 104 | bset_obj_store(pTHXo_ void *obj, I32 ix) |
---|
| 105 | { |
---|
| 106 | if (ix > bytecode_obj_list_fill) { |
---|
| 107 | if (bytecode_obj_list_fill == -1) |
---|
| 108 | New(666, bytecode_obj_list, ix + 1, void*); |
---|
| 109 | else |
---|
| 110 | Renew(bytecode_obj_list, ix + 1, void*); |
---|
| 111 | bytecode_obj_list_fill = ix; |
---|
| 112 | } |
---|
| 113 | bytecode_obj_list[ix] = obj; |
---|
| 114 | return obj; |
---|
| 115 | } |
---|
| 116 | |
---|
| 117 | void |
---|
| 118 | byterun(pTHXo_ struct bytestream bs) |
---|
| 119 | { |
---|
| 120 | dTHR; |
---|
| 121 | int insn; |
---|
| 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 | |
---|
| 131 | while ((insn = BGET_FGETC()) != EOF) { |
---|
| 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/) { |
---|
| 165 | # Store instructions store to bytecode_obj_list[arg]. "lvalue" field is rvalue. |
---|
| 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: |
---|
| 189 | Perl_croak(aTHX_ "Illegal bytecode instruction %d\n", insn); |
---|
| 190 | /* NOTREACHED */ |
---|
| 191 | } |
---|
| 192 | } |
---|
| 193 | } |
---|
| 194 | EOT |
---|
| 195 | |
---|
| 196 | # |
---|
| 197 | # Write the instruction and optype enum constants into byterun.h |
---|
| 198 | # |
---|
| 199 | open(BYTERUN_H, ">ext/ByteLoader/byterun.h") or die "ext/ByteLoader/byterun.h: $!"; |
---|
| 200 | print BYTERUN_H $c_header, <<'EOT'; |
---|
| 201 | struct bytestream { |
---|
| 202 | void *data; |
---|
| 203 | int (*pfgetc)(void *); |
---|
| 204 | int (*pfread)(char *, size_t, size_t, void *); |
---|
| 205 | void (*pfreadpv)(U32, void *, XPV *); |
---|
| 206 | }; |
---|
| 207 | |
---|
| 208 | enum { |
---|
| 209 | EOT |
---|
| 210 | |
---|
| 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], $i; |
---|
| 235 | |
---|
| 236 | print BYTERUN_H <<'EOT'; |
---|
| 237 | extern void byterun(pTHXo_ struct bytestream bs); |
---|
| 238 | |
---|
| 239 | #define INIT_SPECIALSV_LIST STMT_START { \ |
---|
| 240 | EOT |
---|
| 241 | for ($i = 0; $i < @specialsv; $i++) { |
---|
| 242 | print BYTERUN_H "\tPL_specialsv_list[$i] = $specialsv[$i]; \\\n"; |
---|
| 243 | } |
---|
| 244 | print BYTERUN_H <<'EOT'; |
---|
| 245 | } STMT_END |
---|
| 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; |
---|
| 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 |
---|
| 281 | EOT |
---|
| 282 | |
---|
| 283 | __END__ |
---|
| 284 | # First set instruction ord("#") to read comment to end-of-line (sneaky) |
---|
| 285 | %number 35 |
---|
| 286 | comment arg comment_t |
---|
| 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 | # |
---|
| 294 | #opcode lvalue argtype flags |
---|
| 295 | # |
---|
| 296 | ret none none x |
---|
| 297 | ldsv bytecode_sv svindex |
---|
| 298 | ldop PL_op opindex |
---|
| 299 | stsv bytecode_sv U32 s |
---|
| 300 | stop PL_op U32 s |
---|
| 301 | ldspecsv bytecode_sv U8 x |
---|
| 302 | newsv bytecode_sv U8 x |
---|
| 303 | newop PL_op U8 x |
---|
| 304 | newopn PL_op U8 x |
---|
| 305 | newpv none PV |
---|
| 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 |
---|
| 316 | xnv SvNVX(bytecode_sv) NV |
---|
| 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 |
---|
| 342 | xcv_file CvFILE(bytecode_sv) pvcontents |
---|
| 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) U16 |
---|
| 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 |
---|
| 369 | gp_file GvFILE(bytecode_sv) pvcontents |
---|
| 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 |
---|
| 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 |
---|
| 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 |
---|
| 396 | op_padix cPADOP->op_padix PADOFFSET |
---|
| 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 |
---|
| 403 | cop_stashpv cCOP pvcontents x |
---|
| 404 | cop_file cCOP pvcontents x |
---|
| 405 | cop_seq cCOP->cop_seq U32 |
---|
| 406 | cop_arybase cCOP->cop_arybase I32 |
---|
| 407 | cop_line cCOP line_t x |
---|
| 408 | cop_warnings cCOP->cop_warnings svindex |
---|
| 409 | main_start PL_main_start opindex |
---|
| 410 | main_root PL_main_root opindex |
---|
| 411 | curpad PL_curpad svindex x |
---|