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)],
+ U32 => [qw(line_t)],
+ PADOFFSET => [qw(STRLEN SSize_t)],
+ U16 => [qw(OPCODE short)],
+ U8 => [qw(char)],
);
my @optype= qw(OP UNOP BINOP LOGOP LISTOP PMOP SVOP PADOP PVOP LOOP COP);
my $perl_header;
($perl_header = $c_header) =~ s{[/ ]?\*/?}{#}g;
-unlink "ext/ByteLoader/byterun.c", "ext/ByteLoader/byterun.h", "ext/B/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, ">ext/B/B/Asmdata.pm") or die "ext/B/B/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);
#define NO_XSLOCKS
#include "XSUB.h"
-#ifdef PERL_OBJECT
-#undef CALL_FPTR
-#define CALL_FPTR(fptr) (pPerl->*fptr)
-#undef PL_ppaddr
-#define PL_ppaddr (*get_ppaddr())
-#endif
-
#include "byterun.h"
#include "bytecode.h"
};
void *
-bset_obj_store(pTHXo_ struct byteloader_state *bstate, void *obj, I32 ix)
+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*);
return obj;
}
-void
-byterun(pTHXo_ register struct byteloader_state *bstate)
+int
+byterun(pTHX_ register struct byteloader_state *bstate)
{
- dTHR;
register int insn;
U32 ix;
SV *specialsv_list[6];
BYTECODE_HEADER_CHECK; /* croak if incorrect platform */
New(666, 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; $i < @specialsv; $i++) {
+for my $i ( 0 .. $#specialsv ) {
print BYTERUN_C " specialsv_list[$i] = $specialsv[$i];\n";
}
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 = $1;
next;
}
($insn, $lvalue, $argtype, $flags) = split;
+ my $rvalcast = '';
+ if ($argtype =~ m:(.+)/(.+):) {
+ ($rvalcast, $argtype) = ("($1)", $2);
+ }
$insn_name[$insn_num] = $insn;
$fundtype = $alias_from{$argtype} || $argtype;
print BYTERUN_C "\t\tBSET_OBJ_STORE($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";
/* NOTREACHED */
}
}
+ return 0;
}
EOT
SV *bs_sv;
void **bs_obj_list;
int bs_obj_list_fill;
+ int bs_ix;
XPV bs_pv;
int bs_iv_overflows;
};
int bl_getc(struct byteloader_fdata *);
int bl_read(struct byteloader_fdata *, char *, size_t, size_t);
-extern void byterun(pTHXo_ struct byteloader_state *);
+extern int byterun(pTHX_ struct byteloader_state *);
enum {
EOT
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 = $i;
=head1 SYNOPSIS
- use Asmdata;
+ use B::Asmdata qw(%insn_data @insn_name @optype @specialsv_name);
=head1 DESCRIPTION
-See F<ext/B/B/Asmdata.pm>.
+Provides information about Perl ops in order to generate bytecode via
+a bunch of exported variables. Its mostly used by B::Assembler and
+B::Disassembler.
+
+=over 4
+
+=item %insn_data
+
+ my($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 refered 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
=cut
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
# 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
stop PL_op U32 s
stpv bstate->bs_pv.xpv_pv 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_cur STRLEN
pv_free bstate->bs_pv none x
-sv_upgrade bstate->bs_sv char 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 SvRV(bstate->bs_sv) svindex
xpv bstate->bs_sv none x
-xiv32 SvIVX(bstate->bs_sv) I32
-xiv64 SvIVX(bstate->bs_sv) IV64
+xpv_cur SvCUR(bstate->bs_sv) STRLEN
+xpv_len SvLEN(bstate->bs_sv) STRLEN
+xiv SvIVX(bstate->bs_sv) IV
xnv SvNVX(bstate->bs_sv) NV
xlv_targoff LvTARGOFF(bstate->bs_sv) STRLEN
xlv_targlen LvTARGLEN(bstate->bs_sv) STRLEN
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) I32
-xio_lines IoLINES(bstate->bs_sv) long
-xio_page IoPAGE(bstate->bs_sv) long
-xio_page_len IoPAGE_LEN(bstate->bs_sv) long
-xio_lines_left IoLINES_LEFT(bstate->bs_sv) long
-xio_top_name IoTOP_NAME(bstate->bs_sv) pvcontents
+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) pvcontents
+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) pvcontents
+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_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
xav_flags AvFLAGS(bstate->bs_sv) U8
xhv_riter HvRITER(bstate->bs_sv) I32
-xhv_name HvNAME(bstate->bs_sv) pvcontents
+xhv_name HvNAME(bstate->bs_sv) pvindex
+xhv_pmroot *(OP**)&HvPMROOT(bstate->bs_sv) opindex
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_pv SvMAGIC(bstate->bs_sv) pvcontents x
+mg_name SvMAGIC(bstate->bs_sv) pvcontents x
+mg_namex SvMAGIC(bstate->bs_sv) svindex x
xmg_stash *(SV**)&SvSTASH(bstate->bs_sv) svindex
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
op_first cUNOP->op_first opindex
op_last cBINOP->op_last opindex
op_other cLOGOP->op_other 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
+#ifdef USE_ITHREADS
+op_pmstashpv cPMOP->op_pmstashpv pvindex
+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_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->cop_arybase I32
-cop_line cCOP line_t x
+cop_line cCOP->cop_line line_t
+cop_io cCOP->cop_io svindex
cop_warnings cCOP->cop_warnings svindex
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
https://perl5.git.perl.org / perl5.git / blobdiff