X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/a8581515f26a081f18157dc1cf5553deae632d07..69a9b4b8cb205b3194738b7a08fc3fb9f858174f:/bytecode.pl

diff --git a/bytecode.pl b/bytecode.pl
index 7fa3fe4..cad64bc 100644
--- a/bytecode.pl
+++ b/bytecode.pl
@@ -1,17 +1,21 @@
+BEGIN {
+  push @INC, './lib';
+  require 'regen_lib.pl';
+}
 use strict;
 my %alias_to = (
-    U32 => [qw(PADOFFSET STRLEN)],
-    I32 => [qw(SSize_t long)],
-    U16 => [qw(OPCODE line_t short)],
-    U8 => [qw(char)],
-    objindex => [qw(svindex opindex)]		
+    U32 => [qw(line_t)],
+    PADOFFSET => [qw(STRLEN SSize_t)],
+    U16 => [qw(OPCODE short)],
+    U8  => [qw(char)],
 );
 
-my @optype= qw(OP UNOP BINOP LOGOP CONDOP LISTOP PMOP SVOP GVOP PVOP LOOP COP);
+my @optype= qw(OP UNOP BINOP LOGOP LISTOP PMOP SVOP PADOP PVOP LOOP COP);
 
 # Nullsv *must* come first in the following so that the condition
 # ($$sv == 0) can continue to be used to test (sv == Nullsv).
-my @specialsv = qw(Nullsv &sv_undef &sv_yes &sv_no);
+my @specialsv = qw(Nullsv &PL_sv_undef &PL_sv_yes &PL_sv_no
+		   (SV*)pWARN_ALL (SV*)pWARN_NONE (SV*)pWARN_STD);
 
 my (%alias_from, $from, $tos);
 while (($from, $tos) = each %alias_to) {
@@ -19,8 +23,9 @@ while (($from, $tos) = each %alias_to) {
 }
 
 my $c_header = <<'EOT';
-/*
- *      Copyright (c) 1996-1998 Malcolm Beattie
+/* -*- 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.
@@ -34,18 +39,22 @@ EOT
 my $perl_header;
 ($perl_header = $c_header) =~ s{[/ ]?\*/?}{#}g;
 
-unlink "byterun.c", "byterun.h", "lib/B/Asmdata.pm";
+safer_unlink "ext/ByteLoader/byterun.c", "ext/ByteLoader/byterun.h", "ext/B/B/Asmdata.pm";
 
 #
 # Start with boilerplate for Asmdata.pm
 #
-open(ASMDATA_PM, ">lib/B/Asmdata.pm") or die "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 = '1.01';
+
 use Exporter;
 @ISA = qw(Exporter);
 @EXPORT_OK = qw(%insn_data @insn_name @optype @specialsv_name);
-use vars qw(%insn_data @insn_name @optype @specialsv_name);
+our(%insn_data, @insn_name, @optype, @specialsv_name);
 
 EOT
 print ASMDATA_PM <<"EOT";
@@ -60,25 +69,67 @@ EOT
 #
 # Boilerplate for byterun.c
 #
-open(BYTERUN_C, ">byterun.c") or die "byterun.c: $!";
+open(BYTERUN_C, ">ext/ByteLoader/byterun.c") or die "ext/ByteLoader/byterun.c: $!";
+binmode BYTERUN_C;
 print BYTERUN_C $c_header, <<'EOT';
 
+#define PERL_NO_GET_CONTEXT
 #include "EXTERN.h"
 #include "perl.h"
-#include "bytecode.h"
+#define NO_XSLOCKS
+#include "XSUB.h"
+
 #include "byterun.h"
+#include "bytecode.h"
 
-#ifdef INDIRECT_BGET_MACROS
-void byterun(bs)
-struct bytestream bs;
-#else
-void byterun(fp)
-FILE *fp;
-#endif /* INDIRECT_BGET_MACROS */
+
+static const int optype_size[] = {
+EOT
+my $i = 0;
+for ($i = 0; $i < @optype - 1; $i++) {
+    printf BYTERUN_C "    sizeof(%s),\n", $optype[$i], $i;
+}
+printf BYTERUN_C "    sizeof(%s)\n", $optype[$i], $i;
+
+my $size = @specialsv;
+
+print BYTERUN_C <<"EOT";
+};
+
+void *
+bset_obj_store(pTHX_ struct byteloader_state *bstate, void *obj, I32 ix)
+{
+    if (ix > bstate->bs_obj_list_fill) {
+	Renew(bstate->bs_obj_list, ix + 32, void*);
+	bstate->bs_obj_list_fill = ix + 31;
+    }
+    bstate->bs_obj_list[ix] = obj;
+    return obj;
+}
+
+int
+byterun(pTHX_ register struct byteloader_state *bstate)
 {
-    dTHR;
-    int insn;
-    while ((insn = FGETC()) != EOF) {
+    dVAR;
+    register int insn;
+    U32 ix;
+    SV *specialsv_list[$size];
+
+    BYTECODE_HEADER_CHECK;	/* croak if incorrect platform */
+    Newx(bstate->bs_obj_list, 32, void*); /* set op objlist */
+    bstate->bs_obj_list_fill = 31;
+    bstate->bs_obj_list[0] = NULL; /* first is always Null */
+    bstate->bs_ix = 1;
+
+EOT
+
+for my $i ( 0 .. $#specialsv ) {
+    print BYTERUN_C "    specialsv_list[$i] = $specialsv[$i];\n";
+}
+
+print BYTERUN_C <<'EOT';
+
+    while ((insn = BGET_FGETC()) != EOF) {
 	switch (insn) {
 EOT
 
@@ -86,8 +137,11 @@ EOT
 my (@insn_name, $insn_num, $insn, $lvalue, $argtype, $flags, $fundtype);
 
 while (<DATA>) {
+    if (/^\s*#/) {
+	print BYTERUN_C if /^\s*#\s*(?:if|endif|el)/;
+	next;
+    }
     chop;
-    s/#.*//;			# remove comments
     next unless length;
     if (/^%number\s+(.*)/) {
 	$insn_num = $1;
@@ -97,6 +151,10 @@ while (<DATA>) {
 	next;
     }
     ($insn, $lvalue, $argtype, $flags) = split;
+    my $rvalcast = '';
+    if ($argtype =~ m:(.+)/(.+):) {
+	($rvalcast, $argtype) = ("($1)", $2);
+    }
     $insn_name[$insn_num] = $insn;
     $fundtype = $alias_from{$argtype} || $argtype;
 
@@ -112,11 +170,11 @@ while (<DATA>) {
     if ($flags =~ /x/) {
 	print BYTERUN_C "\t\tBSET_$insn($lvalue$optarg);\n";
     } elsif ($flags =~ /s/) {
-	# Store instructions store to obj_list[arg]. "lvalue" field is rvalue.
+	# Store instructions store to bytecode_obj_list[arg]. "lvalue" field is rvalue.
 	print BYTERUN_C "\t\tBSET_OBJ_STORE($lvalue$optarg);\n";
     }
     elsif ($optarg && $lvalue ne "none") {
-	print BYTERUN_C "\t\t$lvalue = arg;\n";
+	print BYTERUN_C "\t\t$lvalue = ${rvalcast}arg;\n";
     }
     print BYTERUN_C "\t\tbreak;\n\t    }\n";
 
@@ -136,45 +194,53 @@ EOT
 #
 print BYTERUN_C <<'EOT';
 	  default:
-	    croak("Illegal bytecode instruction %d\n", insn);
+	    Perl_croak(aTHX_ "Illegal bytecode instruction %d\n", insn);
 	    /* NOTREACHED */
 	}
     }
+    return 0;
 }
+
+/* ex: set ro: */
 EOT
 
 #
 # Write the instruction and optype enum constants into byterun.h
 #
-open(BYTERUN_H, ">byterun.h") or die "byterun.h: $!";
+open(BYTERUN_H, ">ext/ByteLoader/byterun.h") or die "ext/ByteLoader/byterun.h: $!";
+binmode BYTERUN_H;
 print BYTERUN_H $c_header, <<'EOT';
-#ifdef INDIRECT_BGET_MACROS
-struct bytestream {
-    void *data;
-    int (*fgetc)(void *);
-    int (*fread)(char *, size_t, size_t, void*);
-    void (*freadpv)(U32, void*);
+struct byteloader_fdata {
+    SV	*datasv;
+    int next_out;
+    int	idx;
 };
-void freadpv _((U32, void *));
-void byterun _((struct bytestream));
-#else
-void byterun _((FILE *));
-#endif /* INDIRECT_BGET_MACROS */
 
-#ifndef PATCHLEVEL
-#include "patchlevel.h"
-#endif
-#if PATCHLEVEL < 4 || (PATCHLEVEL == 4 && SUBVERSION < 50)
-#define dTHR extern int errno
-#endif
+struct byteloader_pv_state {
+    char			*pvx;
+    XPV				xpv;
+};
+
+struct byteloader_state {
+    struct byteloader_fdata	*bs_fdata;
+    SV				*bs_sv;
+    void			**bs_obj_list;
+    int				bs_obj_list_fill;
+    int				bs_ix;
+    struct byteloader_pv_state	bs_pv;
+    int				bs_iv_overflows;
+};
+
+int bl_getc(struct byteloader_fdata *);
+int bl_read(struct byteloader_fdata *, char *, size_t, size_t);
+extern int byterun(pTHX_ struct byteloader_state *);
 
 enum {
 EOT
 
-my $i = 0;
 my $add_enum_value = 0;
 my $max_insn;
-for ($i = 0; $i < @insn_name; $i++) {
+for $i ( 0 .. $#insn_name ) {
     $insn = uc($insn_name[$i]);
     if (defined($insn)) {
 	$max_insn = $i;
@@ -196,31 +262,8 @@ for ($i = 0; $i < @optype - 1; $i++) {
     printf BYTERUN_H "    OPt_%s,\t\t/* %d */\n", $optype[$i], $i;
 }
 printf BYTERUN_H "    OPt_%s\t\t/* %d */\n};\n\n", $optype[$i], $i;
-print BYTERUN_H <<'EOT';
-EXT int optype_size[]
-#ifdef DOINIT
-= {
-EOT
-for ($i = 0; $i < @optype - 1; $i++) {
-    printf BYTERUN_H "    sizeof(%s),\n", $optype[$i], $i;
-}
-printf BYTERUN_H "    sizeof(%s)\n}\n", $optype[$i], $i;
-print BYTERUN_H <<'EOT';
-#endif /* DOINIT */
-;
-
-EOT
 
-printf BYTERUN_H <<'EOT', scalar(@specialsv);
-EXT SV * specialsv_list[%d];
-#define INIT_SPECIALSV_LIST STMT_START { \
-EOT
-for ($i = 0; $i < @specialsv; $i++) {
-    print BYTERUN_H "specialsv_list[$i] = $specialsv[$i]; \\\n";
-}
-print BYTERUN_H <<'EOT';
-} STMT_END
-EOT
+print BYTERUN_H "/* ex: set ro: */\n";
 
 #
 # Finish off insn_data and create array initialisers in Asmdata.pm
@@ -235,135 +278,246 @@ while (($insn_name, $insn_data) = each %insn_data) {
 @insn_name = map($_ || "unused", @insn_name);
 
 1;
+
+__END__
+
+=head1 NAME
+
+B::Asmdata - Autogenerated data about Perl ops, used to generate bytecode
+
+=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: $!";
+close BYTERUN_H or die "Error closing BYTERUN_H: $!";
+close BYTERUN_C or die "Error closing BYTERUN_C: $!";
+
 __END__
 # First set instruction ord("#") to read comment to end-of-line (sneaky)
 %number 35
-comment		arg			comment
+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
 #
-#opcode		lvalue			argtype		flags	
+# The argtype is either a single type or "rightvaluecast/argtype".
+#
+#opcode		lvalue					argtype		flags	
 #
-ret		none			none		x
-ldsv		sv			svindex
-ldop		op			opindex
-stsv		sv			U32		s
-stop		op			U32		s
-ldspecsv	sv			U8		x
-newsv		sv			U8		x
-newop		op			U8		x
-newopn		op			U8		x
-newpv		none			PV
-pv_cur		pv.xpv_cur		STRLEN
-pv_free		pv			none		x
-sv_upgrade	sv			char		x
-sv_refcnt	SvREFCNT(sv)		U32
-sv_refcnt_add	SvREFCNT(sv)		I32		x
-sv_flags	SvFLAGS(sv)		U32
-xrv		SvRV(sv)		svindex
-xpv		sv			none		x
-xiv32		SvIVX(sv)		I32
-xiv64		SvIVX(sv)		IV64
-xnv		SvNVX(sv)		double
-xlv_targoff	LvTARGOFF(sv)		STRLEN
-xlv_targlen	LvTARGLEN(sv)		STRLEN
-xlv_targ	LvTARG(sv)		svindex
-xlv_type	LvTYPE(sv)		char
-xbm_useful	BmUSEFUL(sv)		I32
-xbm_previous	BmPREVIOUS(sv)		U16
-xbm_rare	BmRARE(sv)		U8
-xfm_lines	FmLINES(sv)		I32
-xio_lines	IoLINES(sv)		long
-xio_page	IoPAGE(sv)		long
-xio_page_len	IoPAGE_LEN(sv)		long
-xio_lines_left	IoLINES_LEFT(sv)	long
-xio_top_name	IoTOP_NAME(sv)		pvcontents
-xio_top_gv	*(SV**)&IoTOP_GV(sv)	svindex
-xio_fmt_name	IoFMT_NAME(sv)		pvcontents
-xio_fmt_gv	*(SV**)&IoFMT_GV(sv)	svindex
-xio_bottom_name	IoBOTTOM_NAME(sv)	pvcontents
-xio_bottom_gv	*(SV**)&IoBOTTOM_GV(sv)	svindex
-xio_subprocess	IoSUBPROCESS(sv)	short
-xio_type	IoTYPE(sv)		char
-xio_flags	IoFLAGS(sv)		char
-xcv_stash	*(SV**)&CvSTASH(sv)	svindex
-xcv_start	CvSTART(sv)		opindex
-xcv_root	CvROOT(sv)		opindex
-xcv_gv		*(SV**)&CvGV(sv)	svindex
-xcv_filegv	*(SV**)&CvFILEGV(sv)	svindex
-xcv_depth	CvDEPTH(sv)		long
-xcv_padlist	*(SV**)&CvPADLIST(sv)	svindex
-xcv_outside	*(SV**)&CvOUTSIDE(sv)	svindex
-xcv_flags	CvFLAGS(sv)		U8
-av_extend	sv			SSize_t		x
-av_push		sv			svindex		x
-xav_fill	AvFILLp(sv)		SSize_t
-xav_max		AvMAX(sv)		SSize_t
-xav_flags	AvFLAGS(sv)		U8
-xhv_riter	HvRITER(sv)		I32
-xhv_name	HvNAME(sv)		pvcontents
-hv_store	sv			svindex		x
-sv_magic	sv			char		x
-mg_obj		SvMAGIC(sv)->mg_obj	svindex
-mg_private	SvMAGIC(sv)->mg_private	U16
-mg_flags	SvMAGIC(sv)->mg_flags	U8
-mg_pv		SvMAGIC(sv)		pvcontents	x
-xmg_stash	*(SV**)&SvSTASH(sv)	svindex
-gv_fetchpv	sv			strconst	x
-gv_stashpv	sv			strconst	x
-gp_sv		GvSV(sv)		svindex
-gp_refcnt	GvREFCNT(sv)		U32
-gp_refcnt_add	GvREFCNT(sv)		I32		x
-gp_av		*(SV**)&GvAV(sv)	svindex
-gp_hv		*(SV**)&GvHV(sv)	svindex
-gp_cv		*(SV**)&GvCV(sv)	svindex
-gp_filegv	*(SV**)&GvFILEGV(sv)	svindex
-gp_io		*(SV**)&GvIOp(sv)	svindex
-gp_form		*(SV**)&GvFORM(sv)	svindex
-gp_cvgen	GvCVGEN(sv)		U32
-gp_line		GvLINE(sv)		line_t
-gp_share	sv			svindex		x
-xgv_flags	GvFLAGS(sv)		U8
-op_next		op->op_next		opindex
-op_sibling	op->op_sibling		opindex
-op_ppaddr	op->op_ppaddr		strconst	x
-op_targ		op->op_targ		PADOFFSET
-op_type		op			OPCODE		x
-op_seq		op->op_seq		U16
-op_flags	op->op_flags		U8
-op_private	op->op_private		U8
-op_first	cUNOP->op_first		opindex
-op_last		cBINOP->op_last		opindex
-op_other	cLOGOP->op_other	opindex
-op_true		cCONDOP->op_true	opindex
-op_false	cCONDOP->op_false	opindex
-op_children	cLISTOP->op_children	U32
-op_pmreplroot	cPMOP->op_pmreplroot	opindex
-op_pmreplrootgv	*(SV**)&cPMOP->op_pmreplroot	svindex
-op_pmreplstart	cPMOP->op_pmreplstart	opindex
-op_pmnext	*(OP**)&cPMOP->op_pmnext	opindex
-pregcomp	op			pvcontents	x
-op_pmflags	cPMOP->op_pmflags	U16
-op_pmpermflags	cPMOP->op_pmpermflags	U16
-op_sv		cSVOP->op_sv		svindex
-op_gv		*(SV**)&cGVOP->op_gv	svindex
-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		pvcontents
-cop_stash	*(SV**)&cCOP->cop_stash		svindex
-cop_filegv	*(SV**)&cCOP->cop_filegv	svindex
-cop_seq		cCOP->cop_seq		U32
-cop_arybase	cCOP->cop_arybase	I32
-cop_line	cCOP->cop_line		line_t
-main_start	main_start		opindex
-main_root	main_root		opindex
-curpad		curpad			svindex		x
+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				U8		x
+newsvx		bstate->bs_sv				U32		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				U8		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_pmpermflags	cPMOP->op_pmpermflags			U16
+op_pmdynflags	cPMOP->op_pmdynflags			U8
+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