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author | Nicholas Clark <nick@ccl4.org> | 2007-05-07 15:35:56 +0000 |
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committer | Nicholas Clark <nick@ccl4.org> | 2007-05-07 15:35:56 +0000 |
commit | 6c993494e4b729540ad72e7f1088e3dd0ee70221 (patch) | |
tree | 12566956fde62790d83b1fa9d6a98c9353cd1565 /bytecode.pl | |
parent | baccf54f1213c0da51c9cff1078e4351fc442f70 (diff) | |
download | perl-6c993494e4b729540ad72e7f1088e3dd0ee70221.tar.gz |
bytecode.pl: Exterminate!
ext/B/B/Asmdata.pm: Exterminate!
p4raw-id: //depot/perl@31165
Diffstat (limited to 'bytecode.pl')
-rw-r--r-- | bytecode.pl | 346 |
1 files changed, 0 insertions, 346 deletions
diff --git a/bytecode.pl b/bytecode.pl deleted file mode 100644 index 6d09f8e2bf..0000000000 --- a/bytecode.pl +++ /dev/null @@ -1,346 +0,0 @@ -BEGIN { - push @INC, './lib'; - require 'regen_lib.pl'; -} -use strict; -my %alias_to = ( - U32 => [qw(line_t)], - PADOFFSET => [qw(STRLEN SSize_t)], - U16 => [qw(OPCODE short)], - U8 => [qw(char)], -); - -my (%alias_from, $from, $tos); -while (($from, $tos) = each %alias_to) { - map { $alias_from{$_} = $from } @$tos; -} - -my $c_header = <<'EOT'; -/* -*- buffer-read-only: t -*- - * - * Copyright (c) 1996-1999 Malcolm Beattie - * - * You may distribute under the terms of either the GNU General Public - * License or the Artistic License, as specified in the README file. - * - */ -/* - * This file is autogenerated from bytecode.pl. Changes made here will be lost. - */ -EOT - -my $perl_header; -($perl_header = $c_header) =~ s{[/ ]?\*/?}{#}g; - -safer_unlink "ext/B/B/Asmdata.pm"; - -# -# Start with boilerplate for Asmdata.pm -# -open(ASMDATA_PM, ">ext/B/B/Asmdata.pm") or die "ext/B/B/Asmdata.pm: $!"; -binmode ASMDATA_PM; -print ASMDATA_PM $perl_header, <<'EOT'; -package B::Asmdata; - -our $VERSION = '1.02'; - -use Exporter; -@ISA = qw(Exporter); -@EXPORT_OK = qw(%insn_data @insn_name @optype @specialsv_name); -our(%insn_data, @insn_name); - -use B qw(@optype @specialsv_name); -EOT -print ASMDATA_PM <<"EOT"; - -# XXX insn_data is initialised this way because with a large -# %insn_data = (foo => [...], bar => [...], ...) initialiser -# I get a hard-to-track-down stack underflow and segfault. -EOT - -my (@insn_name, $insn_num, $insn, $lvalue, $argtype, $flags, $fundtype); - -while (<DATA>) { - if (/^\s*#/) { - next; - } - chop; - next unless length; - if (/^%number\s+(.*)/) { - $insn_num = $1; - next; - } elsif (/%enum\s+(.*?)\s+(.*)/) { - create_enum($1, $2); # must come before instructions - next; - } - ($insn, $lvalue, $argtype, $flags) = split; - my $rvalcast = ''; - if ($argtype =~ m:(.+)/(.+):) { - ($rvalcast, $argtype) = ("($1)", $2); - } - $insn_name[$insn_num] = $insn; - $fundtype = $alias_from{$argtype} || $argtype; - - # - # Add the initialiser line for %insn_data in Asmdata.pm - # - print ASMDATA_PM <<"EOT"; -\$insn_data{$insn} = [$insn_num, \\&PUT_$fundtype, "GET_$fundtype"]; -EOT - - # Find the next unused instruction number - do { $insn_num++ } while $insn_name[$insn_num]; -} - -# -# Finish off insn_data and create array initialisers in Asmdata.pm -# -print ASMDATA_PM <<'EOT'; - -my ($insn_name, $insn_data); -while (($insn_name, $insn_data) = each %insn_data) { - $insn_name[$insn_data->[0]] = $insn_name; -} -# Fill in any gaps -@insn_name = map($_ || "unused", @insn_name); - -1; - -__END__ - -=head1 NAME - -B::Asmdata - Autogenerated data about Perl ops - -=head1 SYNOPSIS - - use B::Asmdata qw(%insn_data @insn_name @optype @specialsv_name); - -=head1 DESCRIPTION - -Provides information about Perl ops in order to generate bytecode via -a bunch of exported variables. Its mostly used by B::Assembler and -B::Disassembler. - -=over 4 - -=item %insn_data - - my($bytecode_num, $put_sub, $get_meth) = @$insn_data{$op_name}; - -For a given $op_name (for example, 'cop_label', 'sv_flags', etc...) -you get an array ref containing the bytecode number of the op, a -reference to the subroutine used to 'PUT', and the name of the method -used to 'GET'. - -=for _private -Add more detail about what $put_sub and $get_meth are and how to use them. - -=item @insn_name - - my $op_name = $insn_name[$bytecode_num]; - -A simple mapping of the bytecode number to the name of the op. -Suitable for using with %insn_data like so: - - my $op_info = $insn_data{$insn_name[$bytecode_num]}; - -=item @optype - - my $op_type = $optype[$op_type_num]; - -A simple mapping of the op type number to its type (like 'COP' or 'BINOP'). - -=item @specialsv_name - - my $sv_name = $specialsv_name[$sv_index]; - -Certain SV types are considered 'special'. They're represented by -B::SPECIAL and are referred to by a number from the specialsv_list. -This array maps that number back to the name of the SV (like 'Nullsv' -or '&PL_sv_undef'). - -=back - -=head1 AUTHOR - -Malcolm Beattie, C<mbeattie@sable.ox.ac.uk> - -=cut - -# ex: set ro: -EOT - - -close ASMDATA_PM or die "Error closing ASMDATA_PM: $!"; - -__END__ -# First set instruction ord("#") to read comment to end-of-line (sneaky) -%number 35 -comment arg comment_t -# Then make ord("\n") into a no-op -%number 10 -nop none none - -# Now for the rest of the ordinary ones, beginning with \0 which is -# ret so that \0-terminated strings can be read properly as bytecode. -%number 0 -# -# The argtype is either a single type or "rightvaluecast/argtype". -# -#opcode lvalue argtype flags -# -ret none none x -ldsv bstate->bs_sv svindex -ldop PL_op opindex -stsv bstate->bs_sv U32 s -stop PL_op U32 s -stpv bstate->bs_pv.pvx U32 x -ldspecsv bstate->bs_sv U8 x -ldspecsvx bstate->bs_sv U8 x -newsv bstate->bs_sv svtype x -newsvx bstate->bs_sv svtype x -newop PL_op U8 x -newopx PL_op U16 x -newopn PL_op U8 x -newpv none PV -pv_cur bstate->bs_pv.xpv.xpv_cur STRLEN -pv_free bstate->bs_pv.pvx none x -sv_upgrade bstate->bs_sv svtype x -sv_refcnt SvREFCNT(bstate->bs_sv) U32 -sv_refcnt_add SvREFCNT(bstate->bs_sv) I32 x -sv_flags SvFLAGS(bstate->bs_sv) U32 -xrv bstate->bs_sv svindex x -xpv bstate->bs_sv none x -xpv_cur bstate->bs_sv STRLEN x -xpv_len bstate->bs_sv STRLEN x -xiv bstate->bs_sv IV x -xnv bstate->bs_sv NV x -xlv_targoff LvTARGOFF(bstate->bs_sv) STRLEN -xlv_targlen LvTARGLEN(bstate->bs_sv) STRLEN -xlv_targ LvTARG(bstate->bs_sv) svindex -xlv_type LvTYPE(bstate->bs_sv) char -xbm_useful BmUSEFUL(bstate->bs_sv) I32 -xbm_previous BmPREVIOUS(bstate->bs_sv) U16 -xbm_rare BmRARE(bstate->bs_sv) U8 -xfm_lines FmLINES(bstate->bs_sv) IV -xio_lines IoLINES(bstate->bs_sv) IV -xio_page IoPAGE(bstate->bs_sv) IV -xio_page_len IoPAGE_LEN(bstate->bs_sv) IV -xio_lines_left IoLINES_LEFT(bstate->bs_sv) IV -xio_top_name IoTOP_NAME(bstate->bs_sv) pvindex -xio_top_gv *(SV**)&IoTOP_GV(bstate->bs_sv) svindex -xio_fmt_name IoFMT_NAME(bstate->bs_sv) pvindex -xio_fmt_gv *(SV**)&IoFMT_GV(bstate->bs_sv) svindex -xio_bottom_name IoBOTTOM_NAME(bstate->bs_sv) pvindex -xio_bottom_gv *(SV**)&IoBOTTOM_GV(bstate->bs_sv) svindex -xio_subprocess IoSUBPROCESS(bstate->bs_sv) short -xio_type IoTYPE(bstate->bs_sv) char -xio_flags IoFLAGS(bstate->bs_sv) char -xcv_xsubany *(SV**)&CvXSUBANY(bstate->bs_sv).any_ptr svindex -xcv_stash *(SV**)&CvSTASH(bstate->bs_sv) svindex -xcv_start CvSTART(bstate->bs_sv) opindex -xcv_root CvROOT(bstate->bs_sv) opindex -xcv_gv *(SV**)&CvGV(bstate->bs_sv) svindex -xcv_file CvFILE(bstate->bs_sv) pvindex -xcv_depth CvDEPTH(bstate->bs_sv) long -xcv_padlist *(SV**)&CvPADLIST(bstate->bs_sv) svindex -xcv_outside *(SV**)&CvOUTSIDE(bstate->bs_sv) svindex -xcv_outside_seq CvOUTSIDE_SEQ(bstate->bs_sv) U32 -xcv_flags CvFLAGS(bstate->bs_sv) U16 -av_extend bstate->bs_sv SSize_t x -av_pushx bstate->bs_sv svindex x -av_push bstate->bs_sv svindex x -xav_fill AvFILLp(bstate->bs_sv) SSize_t -xav_max AvMAX(bstate->bs_sv) SSize_t -xhv_riter HvRITER(bstate->bs_sv) I32 -xhv_name bstate->bs_sv pvindex x -hv_store bstate->bs_sv svindex x -sv_magic bstate->bs_sv char x -mg_obj SvMAGIC(bstate->bs_sv)->mg_obj svindex -mg_private SvMAGIC(bstate->bs_sv)->mg_private U16 -mg_flags SvMAGIC(bstate->bs_sv)->mg_flags U8 -mg_name SvMAGIC(bstate->bs_sv) pvcontents x -mg_namex SvMAGIC(bstate->bs_sv) svindex x -xmg_stash bstate->bs_sv svindex x -gv_fetchpv bstate->bs_sv strconst x -gv_fetchpvx bstate->bs_sv strconst x -gv_stashpv bstate->bs_sv strconst x -gv_stashpvx bstate->bs_sv strconst x -gp_sv GvSV(bstate->bs_sv) svindex -gp_refcnt GvREFCNT(bstate->bs_sv) U32 -gp_refcnt_add GvREFCNT(bstate->bs_sv) I32 x -gp_av *(SV**)&GvAV(bstate->bs_sv) svindex -gp_hv *(SV**)&GvHV(bstate->bs_sv) svindex -gp_cv *(SV**)&GvCV(bstate->bs_sv) svindex -gp_file bstate->bs_sv pvindex x -gp_io *(SV**)&GvIOp(bstate->bs_sv) svindex -gp_form *(SV**)&GvFORM(bstate->bs_sv) svindex -gp_cvgen GvCVGEN(bstate->bs_sv) U32 -gp_line GvLINE(bstate->bs_sv) line_t -gp_share bstate->bs_sv svindex x -xgv_flags GvFLAGS(bstate->bs_sv) U8 -op_next PL_op->op_next opindex -op_sibling PL_op->op_sibling opindex -op_ppaddr PL_op->op_ppaddr strconst x -op_targ PL_op->op_targ PADOFFSET -op_type PL_op OPCODE x -op_opt PL_op->op_opt U8 -op_static PL_op->op_static U8 -op_flags PL_op->op_flags U8 -op_private PL_op->op_private U8 -op_first cUNOP->op_first opindex -op_last cBINOP->op_last opindex -op_other cLOGOP->op_other opindex -op_pmreplroot cPMOP->op_pmreplroot opindex -op_pmreplstart cPMOP->op_pmreplstart opindex -op_pmnext *(OP**)&cPMOP->op_pmnext opindex -#ifdef USE_ITHREADS -op_pmstashpv cPMOP pvindex x -op_pmreplrootpo cPMOP->op_pmreplroot OP*/PADOFFSET -#else -op_pmstash *(SV**)&cPMOP->op_pmstash svindex -op_pmreplrootgv *(SV**)&cPMOP->op_pmreplroot svindex -#endif -pregcomp PL_op pvcontents x -op_pmflags cPMOP->op_pmflags U16 -op_sv cSVOP->op_sv svindex -op_padix cPADOP->op_padix PADOFFSET -op_pv cPVOP->op_pv pvcontents -op_pv_tr cPVOP->op_pv op_tr_array -op_redoop cLOOP->op_redoop opindex -op_nextop cLOOP->op_nextop opindex -op_lastop cLOOP->op_lastop opindex -cop_label cCOP->cop_label pvindex -#ifdef USE_ITHREADS -cop_stashpv cCOP pvindex x -cop_file cCOP pvindex x -#else -cop_stash cCOP svindex x -cop_filegv cCOP svindex x -#endif -cop_seq cCOP->cop_seq U32 -cop_arybase cCOP I32 x -cop_line cCOP->cop_line line_t -cop_warnings cCOP svindex x -main_start PL_main_start opindex -main_root PL_main_root opindex -main_cv *(SV**)&PL_main_cv svindex -curpad PL_curpad svindex x -push_begin PL_beginav svindex x -push_init PL_initav svindex x -push_end PL_endav svindex x -curstash *(SV**)&PL_curstash svindex -defstash *(SV**)&PL_defstash svindex -data none U8 x -incav *(SV**)&GvAV(PL_incgv) svindex -load_glob none svindex x -#ifdef USE_ITHREADS -regex_padav *(SV**)&PL_regex_padav svindex -#endif -dowarn PL_dowarn U8 -comppad_name *(SV**)&PL_comppad_name svindex -xgv_stash *(SV**)&GvSTASH(bstate->bs_sv) svindex -signal bstate->bs_sv strconst x -# to be removed -formfeed PL_formfeed svindex |