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-rw-r--r--Master/tlpkg/tlperl/lib/B/C.pm2272
1 files changed, 0 insertions, 2272 deletions
diff --git a/Master/tlpkg/tlperl/lib/B/C.pm b/Master/tlpkg/tlperl/lib/B/C.pm
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index cebf4132ffd..00000000000
--- a/Master/tlpkg/tlperl/lib/B/C.pm
+++ /dev/null
@@ -1,2272 +0,0 @@
-# C.pm
-#
-# Copyright (c) 1996, 1997, 1998 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.
-#
-
-package B::C;
-
-our $VERSION = '1.04_01';
-
-package B::C::Section;
-
-use B ();
-use base B::Section;
-
-sub new
-{
- my $class = shift;
- my $o = $class->SUPER::new(@_);
- push @$o, { values => [] };
- return $o;
-}
-
-sub add
-{
- my $section = shift;
- push(@{$section->[-1]{values}},@_);
-}
-
-sub index
-{
- my $section = shift;
- return scalar(@{$section->[-1]{values}})-1;
-}
-
-sub output
-{
- my ($section, $fh, $format) = @_;
- my $sym = $section->symtable || {};
- my $default = $section->default;
- my $i;
- foreach (@{$section->[-1]{values}})
- {
- s{(s\\_[0-9a-f]+)}{ exists($sym->{$1}) ? $sym->{$1} : $default; }ge;
- printf $fh $format, $_, $i;
- ++$i;
- }
-}
-
-package B::C::InitSection;
-
-# avoid use vars
-@B::C::InitSection::ISA = qw(B::C::Section);
-
-sub new {
- my $class = shift;
- my $max_lines = 10000; #pop;
- my $section = $class->SUPER::new( @_ );
-
- $section->[-1]{evals} = [];
- $section->[-1]{chunks} = [];
- $section->[-1]{nosplit} = 0;
- $section->[-1]{current} = [];
- $section->[-1]{count} = 0;
- $section->[-1]{max_lines} = $max_lines;
-
- return $section;
-}
-
-sub split {
- my $section = shift;
- $section->[-1]{nosplit}--
- if $section->[-1]{nosplit} > 0;
-}
-
-sub no_split {
- shift->[-1]{nosplit}++;
-}
-
-sub inc_count {
- my $section = shift;
-
- $section->[-1]{count} += $_[0];
- # this is cheating
- $section->add();
-}
-
-sub add {
- my $section = shift->[-1];
- my $current = $section->{current};
- my $nosplit = $section->{nosplit};
-
- push @$current, @_;
- $section->{count} += scalar(@_);
- if( !$nosplit && $section->{count} >= $section->{max_lines} ) {
- push @{$section->{chunks}}, $current;
- $section->{current} = [];
- $section->{count} = 0;
- }
-}
-
-sub add_eval {
- my $section = shift;
- my @strings = @_;
-
- foreach my $i ( @strings ) {
- $i =~ s/\"/\\\"/g;
- }
- push @{$section->[-1]{evals}}, @strings;
-}
-
-sub output {
- my( $section, $fh, $format, $init_name ) = @_;
- my $sym = $section->symtable || {};
- my $default = $section->default;
- push @{$section->[-1]{chunks}}, $section->[-1]{current};
-
- my $name = "aaaa";
- foreach my $i ( @{$section->[-1]{chunks}} ) {
- print $fh <<"EOT";
-static int perl_init_${name}()
-{
- dTARG;
- dSP;
-EOT
- foreach my $j ( @$i ) {
- $j =~ s{(s\\_[0-9a-f]+)}
- { exists($sym->{$1}) ? $sym->{$1} : $default; }ge;
- print $fh "\t$j\n";
- }
- print $fh "\treturn 0;\n}\n";
-
- $section->SUPER::add( "perl_init_${name}();" );
- ++$name;
- }
- foreach my $i ( @{$section->[-1]{evals}} ) {
- $section->SUPER::add( sprintf q{eval_pv("%s",1);}, $i );
- }
-
- print $fh <<"EOT";
-static int ${init_name}()
-{
- dTARG;
- dSP;
-EOT
- $section->SUPER::output( $fh, $format );
- print $fh "\treturn 0;\n}\n";
-}
-
-
-package B::C;
-use Exporter ();
-our %REGEXP;
-
-{ # block necessary for caller to work
- my $caller = caller;
- if( $caller eq 'O' ) {
- require XSLoader;
- XSLoader::load( 'B::C' );
- }
-}
-
-@ISA = qw(Exporter);
-@EXPORT_OK = qw(output_all output_boilerplate output_main mark_unused
- init_sections set_callback save_unused_subs objsym save_context);
-
-use B qw(minus_c sv_undef walkoptree walksymtable main_root main_start peekop
- class cstring cchar svref_2object compile_stats comppadlist hash
- threadsv_names main_cv init_av end_av regex_padav opnumber amagic_generation
- HEf_SVKEY SVf_POK SVf_ROK CVf_CONST);
-use B::Asmdata qw(@specialsv_name);
-
-use FileHandle;
-use Carp;
-use strict;
-use Config;
-
-my $hv_index = 0;
-my $gv_index = 0;
-my $re_index = 0;
-my $pv_index = 0;
-my $cv_index = 0;
-my $anonsub_index = 0;
-my $initsub_index = 0;
-
-my %symtable;
-my %xsub;
-my $warn_undefined_syms;
-my $verbose;
-my %unused_sub_packages;
-my $use_xsloader;
-my $nullop_count;
-my $pv_copy_on_grow = 0;
-my $optimize_ppaddr = 0;
-my $optimize_warn_sv = 0;
-my $use_perl_script_name = 0;
-my $save_data_fh = 0;
-my $save_sig = 0;
-my ($debug_cops, $debug_av, $debug_cv, $debug_mg);
-my $max_string_len;
-
-my $ithreads = $Config{useithreads} eq 'define';
-
-my @threadsv_names;
-BEGIN {
- @threadsv_names = threadsv_names();
-}
-
-# Code sections
-my ($init, $decl, $symsect, $binopsect, $condopsect, $copsect,
- $padopsect, $listopsect, $logopsect, $loopsect, $opsect, $pmopsect,
- $pvopsect, $svopsect, $unopsect, $svsect, $xpvsect, $xpvavsect,
- $xpvhvsect, $xpvcvsect, $xpvivsect, $xpvnvsect, $xpvmgsect, $xpvlvsect,
- $xrvsect, $xpvbmsect, $xpviosect );
-my @op_sections = \( $binopsect, $condopsect, $copsect, $padopsect, $listopsect,
- $logopsect, $loopsect, $opsect, $pmopsect, $pvopsect, $svopsect,
- $unopsect );
-
-sub walk_and_save_optree;
-my $saveoptree_callback = \&walk_and_save_optree;
-sub set_callback { $saveoptree_callback = shift }
-sub saveoptree { &$saveoptree_callback(@_) }
-
-sub walk_and_save_optree {
- my ($name, $root, $start) = @_;
- walkoptree($root, "save");
- return objsym($start);
-}
-
-# Look this up here so we can do just a number compare
-# rather than looking up the name of every BASEOP in B::OP
-my $OP_THREADSV = opnumber('threadsv');
-
-sub savesym {
- my ($obj, $value) = @_;
- my $sym = sprintf("s\\_%x", $$obj);
- $symtable{$sym} = $value;
-}
-
-sub objsym {
- my $obj = shift;
- return $symtable{sprintf("s\\_%x", $$obj)};
-}
-
-sub getsym {
- my $sym = shift;
- my $value;
-
- return 0 if $sym eq "sym_0"; # special case
- $value = $symtable{$sym};
- if (defined($value)) {
- return $value;
- } else {
- warn "warning: undefined symbol $sym\n" if $warn_undefined_syms;
- return "UNUSED";
- }
-}
-
-sub savere {
- my $re = shift;
- my $sym = sprintf("re%d", $re_index++);
- $decl->add(sprintf("static char *$sym = %s;", cstring($re)));
-
- return ($sym,length(pack "a*",$re));
-}
-
-sub savepv {
- my $pv = pack "a*", shift;
- my $pvsym = 0;
- my $pvmax = 0;
- if ($pv_copy_on_grow) {
- $pvsym = sprintf("pv%d", $pv_index++);
-
- if( defined $max_string_len && length($pv) > $max_string_len ) {
- my $chars = join ', ', map { cchar $_ } split //, $pv;
- $decl->add(sprintf("static char %s[] = { %s };", $pvsym, $chars));
- }
- else {
- my $cstring = cstring($pv);
- if ($cstring ne "0") { # sic
- $decl->add(sprintf("static char %s[] = %s;",
- $pvsym, $cstring));
- }
- }
- } else {
- $pvmax = length(pack "a*",$pv) + 1;
- }
- return ($pvsym, $pvmax);
-}
-
-sub save_rv {
- my $sv = shift;
-# confess "Can't save RV: not ROK" unless $sv->FLAGS & SVf_ROK;
- my $rv = $sv->RV->save;
-
- $rv =~ s/^\(([AGHS]V|IO)\s*\*\)\s*(\&sv_list.*)$/$2/;
-
- return $rv;
-}
-
-# savesym, pvmax, len, pv
-sub save_pv_or_rv {
- my $sv = shift;
-
- my $rok = $sv->FLAGS & SVf_ROK;
- my $pok = $sv->FLAGS & SVf_POK;
- my( $len, $pvmax, $savesym, $pv ) = ( 0, 0 );
- if( $rok ) {
- $savesym = '(char*)' . save_rv( $sv );
- }
- else {
- $pv = $pok ? (pack "a*", $sv->PV) : undef;
- $len = $pok ? length($pv) : 0;
- ($savesym, $pvmax) = $pok ? savepv($pv) : ( 'NULL', 0 );
- }
-
- return ( $savesym, $pvmax, $len, $pv );
-}
-
-# see also init_op_ppaddr below; initializes the ppaddt to the
-# OpTYPE; init_op_ppaddr iterates over the ops and sets
-# op_ppaddr to PL_ppaddr[op_ppaddr]; this avoids an explicit assignmente
-# in perl_init ( ~10 bytes/op with GCC/i386 )
-sub B::OP::fake_ppaddr {
- return $optimize_ppaddr ?
- sprintf("INT2PTR(void*,OP_%s)", uc( $_[0]->name ) ) :
- 'NULL';
-}
-
-# This pair is needed becase B::FAKEOP::save doesn't scalar dereference
-# $op->next and $op->sibling
-
-{
- # For 5.9 the hard coded text is the values for op_opt and op_static in each
- # op. The value of op_opt is irrelevant, and the value of op_static needs to
- # be 1 to tell op_free that this is a statically defined op and that is
- # shouldn't be freed.
-
- # For 5.8:
- # Current workaround/fix for op_free() trying to free statically
- # defined OPs is to set op_seq = -1 and check for that in op_free().
- # Instead of hardwiring -1 in place of $op->seq, we use $op_seq
- # so that it can be changed back easily if necessary. In fact, to
- # stop compilers from moaning about a U16 being initialised with an
- # uncast -1 (the printf format is %d so we can't tweak it), we have
- # to "know" that op_seq is a U16 and use 65535. Ugh.
-
- my $static = $] > 5.009 ? '0, 1, 0' : sprintf "%u", 65535;
- sub B::OP::_save_common_middle {
- my $op = shift;
- sprintf ("%s, %u, %u, $static, 0x%x, 0x%x",
- $op->fake_ppaddr, $op->targ, $op->type, $op->flags, $op->private);
- }
-}
-
-sub B::OP::_save_common {
- my $op = shift;
- return sprintf("s\\_%x, s\\_%x, %s",
- ${$op->next}, ${$op->sibling}, $op->_save_common_middle);
-}
-
-sub B::OP::save {
- my ($op, $level) = @_;
- my $sym = objsym($op);
- return $sym if defined $sym;
- my $type = $op->type;
- $nullop_count++ unless $type;
- if ($type == $OP_THREADSV) {
- # saves looking up ppaddr but it's a bit naughty to hard code this
- $init->add(sprintf("(void)find_threadsv(%s);",
- cstring($threadsv_names[$op->targ])));
- }
- $opsect->add($op->_save_common);
- my $ix = $opsect->index;
- $init->add(sprintf("op_list[$ix].op_ppaddr = %s;", $op->ppaddr))
- unless $optimize_ppaddr;
- savesym($op, "&op_list[$ix]");
-}
-
-sub B::FAKEOP::new {
- my ($class, %objdata) = @_;
- bless \%objdata, $class;
-}
-
-sub B::FAKEOP::save {
- my ($op, $level) = @_;
- $opsect->add(sprintf("%s, %s, %s",
- $op->next, $op->sibling, $op->_save_common_middle));
- my $ix = $opsect->index;
- $init->add(sprintf("op_list[$ix].op_ppaddr = %s;", $op->ppaddr))
- unless $optimize_ppaddr;
- return "&op_list[$ix]";
-}
-
-sub B::FAKEOP::next { $_[0]->{"next"} || 0 }
-sub B::FAKEOP::type { $_[0]->{type} || 0}
-sub B::FAKEOP::sibling { $_[0]->{sibling} || 0 }
-sub B::FAKEOP::ppaddr { $_[0]->{ppaddr} || 0 }
-sub B::FAKEOP::targ { $_[0]->{targ} || 0 }
-sub B::FAKEOP::flags { $_[0]->{flags} || 0 }
-sub B::FAKEOP::private { $_[0]->{private} || 0 }
-
-sub B::UNOP::save {
- my ($op, $level) = @_;
- my $sym = objsym($op);
- return $sym if defined $sym;
- $unopsect->add(sprintf("%s, s\\_%x", $op->_save_common, ${$op->first}));
- my $ix = $unopsect->index;
- $init->add(sprintf("unop_list[$ix].op_ppaddr = %s;", $op->ppaddr))
- unless $optimize_ppaddr;
- savesym($op, "(OP*)&unop_list[$ix]");
-}
-
-sub B::BINOP::save {
- my ($op, $level) = @_;
- my $sym = objsym($op);
- return $sym if defined $sym;
- $binopsect->add(sprintf("%s, s\\_%x, s\\_%x",
- $op->_save_common, ${$op->first}, ${$op->last}));
- my $ix = $binopsect->index;
- $init->add(sprintf("binop_list[$ix].op_ppaddr = %s;", $op->ppaddr))
- unless $optimize_ppaddr;
- savesym($op, "(OP*)&binop_list[$ix]");
-}
-
-sub B::LISTOP::save {
- my ($op, $level) = @_;
- my $sym = objsym($op);
- return $sym if defined $sym;
- $listopsect->add(sprintf("%s, s\\_%x, s\\_%x",
- $op->_save_common, ${$op->first}, ${$op->last}));
- my $ix = $listopsect->index;
- $init->add(sprintf("listop_list[$ix].op_ppaddr = %s;", $op->ppaddr))
- unless $optimize_ppaddr;
- savesym($op, "(OP*)&listop_list[$ix]");
-}
-
-sub B::LOGOP::save {
- my ($op, $level) = @_;
- my $sym = objsym($op);
- return $sym if defined $sym;
- $logopsect->add(sprintf("%s, s\\_%x, s\\_%x",
- $op->_save_common, ${$op->first}, ${$op->other}));
- my $ix = $logopsect->index;
- $init->add(sprintf("logop_list[$ix].op_ppaddr = %s;", $op->ppaddr))
- unless $optimize_ppaddr;
- savesym($op, "(OP*)&logop_list[$ix]");
-}
-
-sub B::LOOP::save {
- my ($op, $level) = @_;
- my $sym = objsym($op);
- return $sym if defined $sym;
- #warn sprintf("LOOP: redoop %s, nextop %s, lastop %s\n",
- # peekop($op->redoop), peekop($op->nextop),
- # peekop($op->lastop)); # debug
- $loopsect->add(sprintf("%s, s\\_%x, s\\_%x, s\\_%x, s\\_%x, s\\_%x",
- $op->_save_common, ${$op->first}, ${$op->last},
- ${$op->redoop}, ${$op->nextop},
- ${$op->lastop}));
- my $ix = $loopsect->index;
- $init->add(sprintf("loop_list[$ix].op_ppaddr = %s;", $op->ppaddr))
- unless $optimize_ppaddr;
- savesym($op, "(OP*)&loop_list[$ix]");
-}
-
-sub B::PVOP::save {
- my ($op, $level) = @_;
- my $sym = objsym($op);
- return $sym if defined $sym;
- $pvopsect->add(sprintf("%s, %s", $op->_save_common, cstring($op->pv)));
- my $ix = $pvopsect->index;
- $init->add(sprintf("pvop_list[$ix].op_ppaddr = %s;", $op->ppaddr))
- unless $optimize_ppaddr;
- savesym($op, "(OP*)&pvop_list[$ix]");
-}
-
-sub B::SVOP::save {
- my ($op, $level) = @_;
- my $sym = objsym($op);
- return $sym if defined $sym;
- my $sv = $op->sv;
- my $svsym = '(SV*)' . $sv->save;
- my $is_const_addr = $svsym =~ m/Null|\&/;
- $svopsect->add(sprintf("%s, %s", $op->_save_common,
- ( $is_const_addr ? $svsym : 'Nullsv' )));
- my $ix = $svopsect->index;
- $init->add(sprintf("svop_list[$ix].op_ppaddr = %s;", $op->ppaddr))
- unless $optimize_ppaddr;
- $init->add("svop_list[$ix].op_sv = $svsym;")
- unless $is_const_addr;
- savesym($op, "(OP*)&svop_list[$ix]");
-}
-
-sub B::PADOP::save {
- my ($op, $level) = @_;
- my $sym = objsym($op);
- return $sym if defined $sym;
- $padopsect->add(sprintf("%s, %d",
- $op->_save_common, $op->padix));
- my $ix = $padopsect->index;
- $init->add(sprintf("padop_list[$ix].op_ppaddr = %s;", $op->ppaddr))
- unless $optimize_ppaddr;
-# $init->add(sprintf("padop_list[$ix].op_padix = %ld;", $op->padix));
- savesym($op, "(OP*)&padop_list[$ix]");
-}
-
-sub B::COP::save {
- my ($op, $level) = @_;
- my $sym = objsym($op);
- return $sym if defined $sym;
- warn sprintf("COP: line %d file %s\n", $op->line, $op->file)
- if $debug_cops;
- # shameless cut'n'paste from B::Deparse
- my $warn_sv;
- my $warnings = $op->warnings;
- my $is_special = $warnings->isa("B::SPECIAL");
- if ($is_special && $$warnings == 4) {
- # use warnings 'all';
- $warn_sv = $optimize_warn_sv ?
- 'INT2PTR(SV*,1)' :
- 'pWARN_ALL';
- }
- elsif ($is_special && $$warnings == 5) {
- # no warnings 'all';
- $warn_sv = $optimize_warn_sv ?
- 'INT2PTR(SV*,2)' :
- 'pWARN_NONE';
- }
- elsif ($is_special) {
- # use warnings;
- $warn_sv = $optimize_warn_sv ?
- 'INT2PTR(SV*,3)' :
- 'pWARN_STD';
- }
- else {
- # something else
- $warn_sv = $warnings->save;
- }
-
- $copsect->add(sprintf("%s, %s, NULL, NULL, %u, %d, %u, %s",
- $op->_save_common, cstring($op->label), $op->cop_seq,
- $op->arybase, $op->line,
- ( $optimize_warn_sv ? $warn_sv : 'NULL' )));
- my $ix = $copsect->index;
- $init->add(sprintf("cop_list[$ix].op_ppaddr = %s;", $op->ppaddr))
- unless $optimize_ppaddr;
- $init->add(sprintf("cop_list[$ix].cop_warnings = %s;", $warn_sv ))
- unless $optimize_warn_sv;
- $init->add(sprintf("CopFILE_set(&cop_list[$ix], %s);", cstring($op->file)),
- sprintf("CopSTASHPV_set(&cop_list[$ix], %s);", cstring($op->stashpv)));
-
- savesym($op, "(OP*)&cop_list[$ix]");
-}
-
-sub B::PMOP::save {
- my ($op, $level) = @_;
- my $sym = objsym($op);
- return $sym if defined $sym;
- my $replroot = $op->pmreplroot;
- my $replstart = $op->pmreplstart;
- my $replrootfield;
- my $replstartfield = sprintf("s\\_%x", $$replstart);
- my $gvsym;
- my $ppaddr = $op->ppaddr;
- # under ithreads, OP_PUSHRE.op_replroot is an integer
- $replrootfield = sprintf("s\\_%x", $$replroot) if ref $replroot;
- if($ithreads && $op->name eq "pushre") {
- $replrootfield = "INT2PTR(OP*,${replroot})";
- } elsif ($$replroot) {
- # OP_PUSHRE (a mutated version of OP_MATCH for the regexp
- # argument to a split) stores a GV in op_pmreplroot instead
- # of a substitution syntax tree. We don't want to walk that...
- if ($op->name eq "pushre") {
- $gvsym = $replroot->save;
-# warn "PMOP::save saving a pp_pushre with GV $gvsym\n"; # debug
- $replrootfield = 0;
- } else {
- $replstartfield = saveoptree("*ignore*", $replroot, $replstart);
- }
- }
- # pmnext handling is broken in perl itself, I think. Bad op_pmnext
- # fields aren't noticed in perl's runtime (unless you try reset) but we
- # segfault when trying to dereference it to find op->op_pmnext->op_type
- $pmopsect->add(sprintf("%s, s\\_%x, s\\_%x, %s, %s, 0, %u, 0x%x, 0x%x, 0x%x",
- $op->_save_common, ${$op->first}, ${$op->last},
- $replrootfield, $replstartfield,
- ( $ithreads ? $op->pmoffset : 0 ),
- $op->pmflags, $op->pmpermflags, $op->pmdynflags ));
- my $pm = sprintf("pmop_list[%d]", $pmopsect->index);
- $init->add(sprintf("$pm.op_ppaddr = %s;", $ppaddr))
- unless $optimize_ppaddr;
- my $re = $op->precomp;
- if (defined($re)) {
- my( $resym, $relen ) = savere( $re );
- $init->add(sprintf("PM_SETRE(&$pm,pregcomp($resym, $resym + %u, &$pm));",
- $relen));
- }
- if ($gvsym) {
- $init->add("$pm.op_pmreplroot = (OP*)$gvsym;");
- }
- savesym($op, "(OP*)&$pm");
-}
-
-sub B::SPECIAL::save {
- my ($sv) = @_;
- # special case: $$sv is not the address but an index into specialsv_list
-# warn "SPECIAL::save specialsv $$sv\n"; # debug
- my $sym = $specialsv_name[$$sv];
- if (!defined($sym)) {
- confess "unknown specialsv index $$sv passed to B::SPECIAL::save";
- }
- return $sym;
-}
-
-sub B::OBJECT::save {}
-
-sub B::NULL::save {
- my ($sv) = @_;
- my $sym = objsym($sv);
- return $sym if defined $sym;
-# warn "Saving SVt_NULL SV\n"; # debug
- # debug
- if ($$sv == 0) {
- warn "NULL::save for sv = 0 called from @{[(caller(1))[3]]}\n";
- return savesym($sv, "(void*)Nullsv /* XXX */");
- }
- $svsect->add(sprintf("0, %u, 0x%x", $sv->REFCNT , $sv->FLAGS));
- return savesym($sv, sprintf("&sv_list[%d]", $svsect->index));
-}
-
-sub B::IV::save {
- my ($sv) = @_;
- my $sym = objsym($sv);
- return $sym if defined $sym;
- $xpvivsect->add(sprintf("0, 0, 0, %d", $sv->IVX));
- $svsect->add(sprintf("&xpviv_list[%d], %lu, 0x%x",
- $xpvivsect->index, $sv->REFCNT , $sv->FLAGS));
- return savesym($sv, sprintf("&sv_list[%d]", $svsect->index));
-}
-
-sub B::NV::save {
- my ($sv) = @_;
- my $sym = objsym($sv);
- return $sym if defined $sym;
- my $val= $sv->NVX;
- $val .= '.00' if $val =~ /^-?\d+$/;
- $xpvnvsect->add(sprintf("0, 0, 0, %d, %s", $sv->IVX, $val));
- $svsect->add(sprintf("&xpvnv_list[%d], %lu, 0x%x",
- $xpvnvsect->index, $sv->REFCNT , $sv->FLAGS));
- return savesym($sv, sprintf("&sv_list[%d]", $svsect->index));
-}
-
-sub savepvn {
- my ($dest,$pv) = @_;
- my @res;
- # work with byte offsets/lengths
- my $pv = pack "a*", $pv;
- if (defined $max_string_len && length($pv) > $max_string_len) {
- push @res, sprintf("Newx(%s,%u,char);", $dest, length($pv)+1);
- my $offset = 0;
- while (length $pv) {
- my $str = substr $pv, 0, $max_string_len, '';
- push @res, sprintf("Copy(%s,$dest+$offset,%u,char);",
- cstring($str), length($str));
- $offset += length $str;
- }
- push @res, sprintf("%s[%u] = '\\0';", $dest, $offset);
- }
- else {
- push @res, sprintf("%s = savepvn(%s, %u);", $dest,
- cstring($pv), length($pv));
- }
- return @res;
-}
-
-sub B::PVLV::save {
- my ($sv) = @_;
- my $sym = objsym($sv);
- return $sym if defined $sym;
- my $pv = $sv->PV;
- my $len = length($pv);
- my ($pvsym, $pvmax) = savepv($pv);
- my ($lvtarg, $lvtarg_sym);
- $xpvlvsect->add(sprintf("%s, %u, %u, %d, %g, 0, 0, %u, %u, 0, %s",
- $pvsym, $len, $pvmax, $sv->IVX, $sv->NVX,
- $sv->TARGOFF, $sv->TARGLEN, cchar($sv->TYPE)));
- $svsect->add(sprintf("&xpvlv_list[%d], %lu, 0x%x",
- $xpvlvsect->index, $sv->REFCNT , $sv->FLAGS));
- if (!$pv_copy_on_grow) {
- $init->add(savepvn(sprintf("xpvlv_list[%d].xpv_pv",
- $xpvlvsect->index), $pv));
- }
- $sv->save_magic;
- return savesym($sv, sprintf("&sv_list[%d]", $svsect->index));
-}
-
-sub B::PVIV::save {
- my ($sv) = @_;
- my $sym = objsym($sv);
- return $sym if defined $sym;
- my( $savesym, $pvmax, $len, $pv ) = save_pv_or_rv( $sv );
- $xpvivsect->add(sprintf("%s, %u, %u, %d", $savesym, $len, $pvmax, $sv->IVX));
- $svsect->add(sprintf("&xpviv_list[%d], %u, 0x%x",
- $xpvivsect->index, $sv->REFCNT , $sv->FLAGS));
- if (defined($pv) && !$pv_copy_on_grow) {
- $init->add(savepvn(sprintf("xpviv_list[%d].xpv_pv",
- $xpvivsect->index), $pv));
- }
- return savesym($sv, sprintf("&sv_list[%d]", $svsect->index));
-}
-
-sub B::PVNV::save {
- my ($sv) = @_;
- my $sym = objsym($sv);
- return $sym if defined $sym;
- my( $savesym, $pvmax, $len, $pv ) = save_pv_or_rv( $sv );
- my $val= $sv->NVX;
- $val .= '.00' if $val =~ /^-?\d+$/;
- $xpvnvsect->add(sprintf("%s, %u, %u, %d, %s",
- $savesym, $len, $pvmax, $sv->IVX, $val));
- $svsect->add(sprintf("&xpvnv_list[%d], %lu, 0x%x",
- $xpvnvsect->index, $sv->REFCNT , $sv->FLAGS));
- if (defined($pv) && !$pv_copy_on_grow) {
- $init->add(savepvn(sprintf("xpvnv_list[%d].xpv_pv",
- $xpvnvsect->index), $pv));
- }
- return savesym($sv, sprintf("&sv_list[%d]", $svsect->index));
-}
-
-sub B::BM::save {
- my ($sv) = @_;
- my $sym = objsym($sv);
- return $sym if defined $sym;
- my $pv = pack "a*", ($sv->PV . "\0" . $sv->TABLE);
- my $len = length($pv);
- $xpvbmsect->add(sprintf("0, %u, %u, %d, %s, 0, 0, %d, %u, 0x%x",
- $len, $len + 258, $sv->IVX, $sv->NVX,
- $sv->USEFUL, $sv->PREVIOUS, $sv->RARE));
- $svsect->add(sprintf("&xpvbm_list[%d], %lu, 0x%x",
- $xpvbmsect->index, $sv->REFCNT , $sv->FLAGS));
- $sv->save_magic;
- $init->add(savepvn(sprintf("xpvbm_list[%d].xpv_pv",
- $xpvbmsect->index), $pv),
- sprintf("xpvbm_list[%d].xpv_cur = %u;",
- $xpvbmsect->index, $len - 257));
- return savesym($sv, sprintf("&sv_list[%d]", $svsect->index));
-}
-
-sub B::PV::save {
- my ($sv) = @_;
- my $sym = objsym($sv);
- return $sym if defined $sym;
- my( $savesym, $pvmax, $len, $pv ) = save_pv_or_rv( $sv );
- $xpvsect->add(sprintf("%s, %u, %u", $savesym, $len, $pvmax));
- $svsect->add(sprintf("&xpv_list[%d], %lu, 0x%x",
- $xpvsect->index, $sv->REFCNT , $sv->FLAGS));
- if (defined($pv) && !$pv_copy_on_grow) {
- $init->add(savepvn(sprintf("xpv_list[%d].xpv_pv",
- $xpvsect->index), $pv));
- }
- return savesym($sv, sprintf("&sv_list[%d]", $svsect->index));
-}
-
-sub B::PVMG::save {
- my ($sv) = @_;
- my $sym = objsym($sv);
- return $sym if defined $sym;
- my( $savesym, $pvmax, $len, $pv ) = save_pv_or_rv( $sv );
-
- $xpvmgsect->add(sprintf("%s, %u, %u, %d, %s, 0, 0",
- $savesym, $len, $pvmax,
- $sv->IVX, $sv->NVX));
- $svsect->add(sprintf("&xpvmg_list[%d], %lu, 0x%x",
- $xpvmgsect->index, $sv->REFCNT , $sv->FLAGS));
- if (defined($pv) && !$pv_copy_on_grow) {
- $init->add(savepvn(sprintf("xpvmg_list[%d].xpv_pv",
- $xpvmgsect->index), $pv));
- }
- $sym = savesym($sv, sprintf("&sv_list[%d]", $svsect->index));
- $sv->save_magic;
- return $sym;
-}
-
-sub B::PVMG::save_magic {
- my ($sv) = @_;
- #warn sprintf("saving magic for %s (0x%x)\n", class($sv), $$sv); # debug
- my $stash = $sv->SvSTASH;
- $stash->save;
- if ($$stash) {
- warn sprintf("xmg_stash = %s (0x%x)\n", $stash->NAME, $$stash)
- if $debug_mg;
- # XXX Hope stash is already going to be saved.
- $init->add(sprintf("SvSTASH(s\\_%x) = s\\_%x;", $$sv, $$stash));
- }
- my @mgchain = $sv->MAGIC;
- my ($mg, $type, $obj, $ptr,$len,$ptrsv);
- foreach $mg (@mgchain) {
- $type = $mg->TYPE;
- $ptr = $mg->PTR;
- $len=$mg->LENGTH;
- if ($debug_mg) {
- warn sprintf("magic %s (0x%x), obj %s (0x%x), type %s, ptr %s\n",
- class($sv), $$sv, class($obj), $$obj,
- cchar($type), cstring($ptr));
- }
-
- unless( $type eq 'r' ) {
- $obj = $mg->OBJ;
- $obj->save;
- }
-
- if ($len == HEf_SVKEY){
- #The pointer is an SV*
- $ptrsv=svref_2object($ptr)->save;
- $init->add(sprintf("sv_magic((SV*)s\\_%x, (SV*)s\\_%x, %s,(char *) %s, %d);",
- $$sv, $$obj, cchar($type),$ptrsv,$len));
- }elsif( $type eq 'r' ){
- my $rx = $mg->REGEX;
- my $pmop = $REGEXP{$rx};
-
- confess "PMOP not found for REGEXP $rx" unless $pmop;
-
- my( $resym, $relen ) = savere( $mg->precomp );
- my $pmsym = $pmop->save;
- $init->add( split /\n/, sprintf <<CODE, $$sv, cchar($type), cstring($ptr) );
-{
- REGEXP* rx = pregcomp($resym, $resym + $relen, (PMOP*)$pmsym);
- sv_magic((SV*)s\\_%x, (SV*)rx, %s, %s, %d);
-}
-CODE
- }else{
- $init->add(sprintf("sv_magic((SV*)s\\_%x, (SV*)s\\_%x, %s, %s, %d);",
- $$sv, $$obj, cchar($type),cstring($ptr),$len));
- }
- }
-}
-
-sub B::RV::save {
- my ($sv) = @_;
- my $sym = objsym($sv);
- return $sym if defined $sym;
- my $rv = save_rv( $sv );
- # GVs need to be handled at runtime
- if( ref( $sv->RV ) eq 'B::GV' ) {
- $xrvsect->add( "(SV*)Nullgv" );
- $init->add(sprintf("xrv_list[%d].xrv_rv = (SV*)%s;\n", $xrvsect->index, $rv));
- }
- # and stashes, too
- elsif( $sv->RV->isa( 'B::HV' ) && $sv->RV->NAME ) {
- $xrvsect->add( "(SV*)Nullhv" );
- $init->add(sprintf("xrv_list[%d].xrv_rv = (SV*)%s;\n", $xrvsect->index, $rv));
- }
- else {
- $xrvsect->add($rv);
- }
- $svsect->add(sprintf("&xrv_list[%d], %lu, 0x%x",
- $xrvsect->index, $sv->REFCNT , $sv->FLAGS));
- return savesym($sv, sprintf("&sv_list[%d]", $svsect->index));
-}
-
-sub try_autoload {
- my ($cvstashname, $cvname) = @_;
- warn sprintf("No definition for sub %s::%s\n", $cvstashname, $cvname);
- # Handle AutoLoader classes explicitly. Any more general AUTOLOAD
- # use should be handled by the class itself.
- no strict 'refs';
- my $isa = \@{"$cvstashname\::ISA"};
- if (grep($_ eq "AutoLoader", @$isa)) {
- warn "Forcing immediate load of sub derived from AutoLoader\n";
- # Tweaked version of AutoLoader::AUTOLOAD
- my $dir = $cvstashname;
- $dir =~ s(::)(/)g;
- eval { require "auto/$dir/$cvname.al" };
- if ($@) {
- warn qq(failed require "auto/$dir/$cvname.al": $@\n);
- return 0;
- } else {
- return 1;
- }
- }
-}
-sub Dummy_initxs{};
-sub B::CV::save {
- my ($cv) = @_;
- my $sym = objsym($cv);
- if (defined($sym)) {
-# warn sprintf("CV 0x%x already saved as $sym\n", $$cv); # debug
- return $sym;
- }
- # Reserve a place in svsect and xpvcvsect and record indices
- my $gv = $cv->GV;
- my ($cvname, $cvstashname);
- if ($$gv){
- $cvname = $gv->NAME;
- $cvstashname = $gv->STASH->NAME;
- }
- my $root = $cv->ROOT;
- my $cvxsub = $cv->XSUB;
- my $isconst = $cv->CvFLAGS & CVf_CONST;
- if( $isconst ) {
- my $value = $cv->XSUBANY;
- my $stash = $gv->STASH;
- my $vsym = $value->save;
- my $stsym = $stash->save;
- my $name = cstring($cvname);
- $decl->add( "static CV* cv$cv_index;" );
- $init->add( "cv$cv_index = newCONSTSUB( $stsym, NULL, $vsym );" );
- my $sym = savesym( $cv, "cv$cv_index" );
- $cv_index++;
- return $sym;
- }
- #INIT is removed from the symbol table, so this call must come
- # from PL_initav->save. Re-bootstrapping will push INIT back in
- # so nullop should be sent.
- if (!$isconst && $cvxsub && ($cvname ne "INIT")) {
- my $egv = $gv->EGV;
- my $stashname = $egv->STASH->NAME;
- if ($cvname eq "bootstrap")
- {
- my $file = $gv->FILE;
- $decl->add("/* bootstrap $file */");
- warn "Bootstrap $stashname $file\n";
- # if it not isa('DynaLoader'), it should hopefully be XSLoaded
- # ( attributes being an exception, of course )
- if( $stashname ne 'attributes' &&
- !UNIVERSAL::isa($stashname,'DynaLoader') ) {
- $xsub{$stashname}='Dynamic-XSLoaded';
- $use_xsloader = 1;
- }
- else {
- $xsub{$stashname}='Dynamic';
- }
- # $xsub{$stashname}='Static' unless $xsub{$stashname};
- return qq/NULL/;
- }
- else
- {
- # XSUBs for IO::File, IO::Handle, IO::Socket,
- # IO::Seekable and IO::Poll
- # are defined in IO.xs, so let's bootstrap it
- svref_2object( \&IO::bootstrap )->save
- if grep { $stashname eq $_ } qw(IO::File IO::Handle IO::Socket
- IO::Seekable IO::Poll);
- }
- warn sprintf("stub for XSUB $cvstashname\:\:$cvname CV 0x%x\n", $$cv) if $debug_cv;
- return qq/(perl_get_cv("$stashname\:\:$cvname",TRUE))/;
- }
- if ($cvxsub && $cvname eq "INIT") {
- no strict 'refs';
- return svref_2object(\&Dummy_initxs)->save;
- }
- my $sv_ix = $svsect->index + 1;
- $svsect->add("svix$sv_ix");
- my $xpvcv_ix = $xpvcvsect->index + 1;
- $xpvcvsect->add("xpvcvix$xpvcv_ix");
- # Save symbol now so that GvCV() doesn't recurse back to us via CvGV()
- $sym = savesym($cv, "&sv_list[$sv_ix]");
- warn sprintf("saving $cvstashname\:\:$cvname CV 0x%x as $sym\n", $$cv) if $debug_cv;
- if (!$$root && !$cvxsub) {
- if (try_autoload($cvstashname, $cvname)) {
- # Recalculate root and xsub
- $root = $cv->ROOT;
- $cvxsub = $cv->XSUB;
- if ($$root || $cvxsub) {
- warn "Successful forced autoload\n";
- }
- }
- }
- my $startfield = 0;
- my $padlist = $cv->PADLIST;
- my $pv = $cv->PV;
- my $xsub = 0;
- my $xsubany = "Nullany";
- if ($$root) {
- warn sprintf("saving op tree for CV 0x%x, root = 0x%x\n",
- $$cv, $$root) if $debug_cv;
- my $ppname = "";
- if ($$gv) {
- my $stashname = $gv->STASH->NAME;
- my $gvname = $gv->NAME;
- if ($gvname ne "__ANON__") {
- $ppname = (${$gv->FORM} == $$cv) ? "pp_form_" : "pp_sub_";
- $ppname .= ($stashname eq "main") ?
- $gvname : "$stashname\::$gvname";
- $ppname =~ s/::/__/g;
- if ($gvname eq "INIT"){
- $ppname .= "_$initsub_index";
- $initsub_index++;
- }
- }
- }
- if (!$ppname) {
- $ppname = "pp_anonsub_$anonsub_index";
- $anonsub_index++;
- }
- $startfield = saveoptree($ppname, $root, $cv->START, $padlist->ARRAY);
- warn sprintf("done saving op tree for CV 0x%x, name %s, root 0x%x\n",
- $$cv, $ppname, $$root) if $debug_cv;
- if ($$padlist) {
- warn sprintf("saving PADLIST 0x%x for CV 0x%x\n",
- $$padlist, $$cv) if $debug_cv;
- $padlist->save;
- warn sprintf("done saving PADLIST 0x%x for CV 0x%x\n",
- $$padlist, $$cv) if $debug_cv;
- }
- }
- else {
- warn sprintf("No definition for sub %s::%s (unable to autoload)\n",
- $cvstashname, $cvname); # debug
- }
- $pv = '' unless defined $pv; # Avoid use of undef warnings
- $symsect->add(sprintf("xpvcvix%d\t%s, %u, 0, %d, %s, 0, Nullhv, Nullhv, %s, s\\_%x, $xsub, $xsubany, Nullgv, \"\", %d, s\\_%x, (CV*)s\\_%x, 0x%x, 0x%x",
- $xpvcv_ix, cstring($pv), length($pv), $cv->IVX,
- $cv->NVX, $startfield, ${$cv->ROOT}, $cv->DEPTH,
- $$padlist, ${$cv->OUTSIDE}, $cv->CvFLAGS,
- $cv->OUTSIDE_SEQ));
-
- if (${$cv->OUTSIDE} == ${main_cv()}){
- $init->add(sprintf("CvOUTSIDE(s\\_%x)=PL_main_cv;",$$cv));
- $init->add(sprintf("SvREFCNT_inc(PL_main_cv);"));
- }
-
- if ($$gv) {
- $gv->save;
- $init->add(sprintf("CvGV(s\\_%x) = s\\_%x;",$$cv,$$gv));
- warn sprintf("done saving GV 0x%x for CV 0x%x\n",
- $$gv, $$cv) if $debug_cv;
- }
- if( $ithreads ) {
- $init->add( savepvn( "CvFILE($sym)", $cv->FILE) );
- }
- else {
- $init->add(sprintf("CvFILE($sym) = %s;", cstring($cv->FILE)));
- }
- my $stash = $cv->STASH;
- if ($$stash) {
- $stash->save;
- $init->add(sprintf("CvSTASH(s\\_%x) = s\\_%x;", $$cv, $$stash));
- warn sprintf("done saving STASH 0x%x for CV 0x%x\n",
- $$stash, $$cv) if $debug_cv;
- }
- $symsect->add(sprintf("svix%d\t(XPVCV*)&xpvcv_list[%u], %lu, 0x%x",
- $sv_ix, $xpvcv_ix, $cv->REFCNT +1*0 , $cv->FLAGS));
- return $sym;
-}
-
-sub B::GV::save {
- my ($gv) = @_;
- my $sym = objsym($gv);
- if (defined($sym)) {
- #warn sprintf("GV 0x%x already saved as $sym\n", $$gv); # debug
- return $sym;
- } else {
- my $ix = $gv_index++;
- $sym = savesym($gv, "gv_list[$ix]");
- #warn sprintf("Saving GV 0x%x as $sym\n", $$gv); # debug
- }
- my $is_empty = $gv->is_empty;
- my $gvname = $gv->NAME;
- my $fullname = $gv->STASH->NAME . "::" . $gvname;
- my $name = cstring($fullname);
- #warn "GV name is $name\n"; # debug
- my $egvsym;
- unless ($is_empty) {
- my $egv = $gv->EGV;
- if ($$gv != $$egv) {
- #warn(sprintf("EGV name is %s, saving it now\n",
- # $egv->STASH->NAME . "::" . $egv->NAME)); # debug
- $egvsym = $egv->save;
- }
- }
- $init->add(qq[$sym = gv_fetchpv($name, TRUE, SVt_PV);],
- sprintf("SvFLAGS($sym) = 0x%x;", $gv->FLAGS ),
- sprintf("GvFLAGS($sym) = 0x%x;", $gv->GvFLAGS));
- $init->add(sprintf("GvLINE($sym) = %u;", $gv->LINE)) unless $is_empty;
- # XXX hack for when Perl accesses PVX of GVs
- $init->add("SvPVX($sym) = emptystring;\n");
- # Shouldn't need to do save_magic since gv_fetchpv handles that
- #$gv->save_magic;
- # XXX will always be > 1!!!
- my $refcnt = $gv->REFCNT + 1;
- $init->add(sprintf("SvREFCNT($sym) += %u;", $refcnt - 1 )) if $refcnt > 1;
-
- return $sym if $is_empty;
-
- # XXX B::walksymtable creates an extra reference to the GV
- my $gvrefcnt = $gv->GvREFCNT;
- if ($gvrefcnt > 1) {
- $init->add(sprintf("GvREFCNT($sym) += %u;", $gvrefcnt - 1));
- }
- # some non-alphavetic globs require some parts to be saved
- # ( ex. %!, but not $! )
- sub Save_HV() { 1 }
- sub Save_AV() { 2 }
- sub Save_SV() { 4 }
- sub Save_CV() { 8 }
- sub Save_FORM() { 16 }
- sub Save_IO() { 32 }
- my $savefields = 0;
- if( $gvname !~ /^([^A-Za-z]|STDIN|STDOUT|STDERR|ARGV|SIG|ENV)$/ ) {
- $savefields = Save_HV|Save_AV|Save_SV|Save_CV|Save_FORM|Save_IO;
- }
- elsif( $gvname eq '!' ) {
- $savefields = Save_HV;
- }
- # attributes::bootstrap is created in perl_parse
- # saving it would overwrite it, because perl_init() is
- # called after perl_parse()
- $savefields&=~Save_CV if $fullname eq 'attributes::bootstrap';
-
- # save it
- # XXX is that correct?
- if (defined($egvsym) && $egvsym !~ m/Null/ ) {
- # Shared glob *foo = *bar
- $init->add("gp_free($sym);",
- "GvGP($sym) = GvGP($egvsym);");
- } elsif ($savefields) {
- # Don't save subfields of special GVs (*_, *1, *# and so on)
-# warn "GV::save saving subfields\n"; # debug
- my $gvsv = $gv->SV;
- if ($$gvsv && $savefields&Save_SV) {
- $gvsv->save;
- $init->add(sprintf("GvSV($sym) = s\\_%x;", $$gvsv));
-# warn "GV::save \$$name\n"; # debug
- }
- my $gvav = $gv->AV;
- if ($$gvav && $savefields&Save_AV) {
- $gvav->save;
- $init->add(sprintf("GvAV($sym) = s\\_%x;", $$gvav));
-# warn "GV::save \@$name\n"; # debug
- }
- my $gvhv = $gv->HV;
- if ($$gvhv && $savefields&Save_HV) {
- $gvhv->save;
- $init->add(sprintf("GvHV($sym) = s\\_%x;", $$gvhv));
-# warn "GV::save \%$name\n"; # debug
- }
- my $gvcv = $gv->CV;
- if ($$gvcv && $savefields&Save_CV) {
- my $origname=cstring($gvcv->GV->EGV->STASH->NAME .
- "::" . $gvcv->GV->EGV->NAME);
- if (0 && $gvcv->XSUB && $name ne $origname) { #XSUB alias
- # must save as a 'stub' so newXS() has a CV to populate
- $init->add("{ CV *cv;");
- $init->add("\tcv=perl_get_cv($origname,TRUE);");
- $init->add("\tGvCV($sym)=cv;");
- $init->add("\tSvREFCNT_inc((SV *)cv);");
- $init->add("}");
- } else {
- $init->add(sprintf("GvCV($sym) = (CV*)(%s);", $gvcv->save));
-# warn "GV::save &$name\n"; # debug
- }
- }
- $init->add(sprintf("GvFILE($sym) = %s;", cstring($gv->FILE)));
-# warn "GV::save GvFILE(*$name)\n"; # debug
- my $gvform = $gv->FORM;
- if ($$gvform && $savefields&Save_FORM) {
- $gvform->save;
- $init->add(sprintf("GvFORM($sym) = (CV*)s\\_%x;", $$gvform));
-# warn "GV::save GvFORM(*$name)\n"; # debug
- }
- my $gvio = $gv->IO;
- if ($$gvio && $savefields&Save_IO) {
- $gvio->save;
- $init->add(sprintf("GvIOp($sym) = s\\_%x;", $$gvio));
- if( $fullname =~ m/::DATA$/ && $save_data_fh ) {
- no strict 'refs';
- my $fh = *{$fullname}{IO};
- use strict 'refs';
- $gvio->save_data( $fullname, <$fh> ) if $fh->opened;
- }
-# warn "GV::save GvIO(*$name)\n"; # debug
- }
- }
- return $sym;
-}
-
-sub B::AV::save {
- my ($av) = @_;
- my $sym = objsym($av);
- return $sym if defined $sym;
- my $line = "0, -1, -1, 0, 0.0, 0, Nullhv, 0, 0";
- $line .= sprintf(", 0x%x", $av->AvFLAGS) if $] < 5.009;
- $xpvavsect->add($line);
- $svsect->add(sprintf("&xpvav_list[%d], %lu, 0x%x",
- $xpvavsect->index, $av->REFCNT , $av->FLAGS));
- my $sv_list_index = $svsect->index;
- my $fill = $av->FILL;
- $av->save_magic;
- if ($debug_av) {
- $line = sprintf("saving AV 0x%x FILL=$fill", $$av);
- $line .= sprintf(" AvFLAGS=0x%x", $av->AvFLAGS) if $] < 5.009;
- warn $line;
- }
- # XXX AVf_REAL is wrong test: need to save comppadlist but not stack
- #if ($fill > -1 && ($avflags & AVf_REAL)) {
- if ($fill > -1) {
- my @array = $av->ARRAY;
- if ($debug_av) {
- my $el;
- my $i = 0;
- foreach $el (@array) {
- warn sprintf("AV 0x%x[%d] = %s 0x%x\n",
- $$av, $i++, class($el), $$el);
- }
- }
-# my @names = map($_->save, @array);
- # XXX Better ways to write loop?
- # Perhaps svp[0] = ...; svp[1] = ...; svp[2] = ...;
- # Perhaps I32 i = 0; svp[i++] = ...; svp[i++] = ...; svp[i++] = ...;
-
- # micro optimization: op/pat.t ( and other code probably )
- # has very large pads ( 20k/30k elements ) passing them to
- # ->add is a performance bottleneck: passing them as a
- # single string cuts runtime from 6min20sec to 40sec
-
- # you want to keep this out of the no_split/split
- # map("\t*svp++ = (SV*)$_;", @names),
- my $acc = '';
- foreach my $i ( 0..$#array ) {
- $acc .= "\t*svp++ = (SV*)" . $array[$i]->save . ";\n\t";
- }
- $acc .= "\n";
-
- $init->no_split;
- $init->add("{",
- "\tSV **svp;",
- "\tAV *av = (AV*)&sv_list[$sv_list_index];",
- "\tav_extend(av, $fill);",
- "\tsvp = AvARRAY(av);" );
- $init->add($acc);
- $init->add("\tAvFILLp(av) = $fill;",
- "}");
- $init->split;
- # we really added a lot of lines ( B::C::InitSection->add
- # should really scan for \n, but that would slow
- # it down
- $init->inc_count( $#array );
- } else {
- my $max = $av->MAX;
- $init->add("av_extend((AV*)&sv_list[$sv_list_index], $max);")
- if $max > -1;
- }
- return savesym($av, "(AV*)&sv_list[$sv_list_index]");
-}
-
-sub B::HV::save {
- my ($hv) = @_;
- my $sym = objsym($hv);
- return $sym if defined $sym;
- my $name = $hv->NAME;
- if ($name) {
- # It's a stash
-
- # A perl bug means HvPMROOT isn't altered when a PMOP is freed. Usually
- # the only symptom is that sv_reset tries to reset the PMf_USED flag of
- # a trashed op but we look at the trashed op_type and segfault.
- #my $adpmroot = ${$hv->PMROOT};
- my $adpmroot = 0;
- $decl->add("static HV *hv$hv_index;");
- # XXX Beware of weird package names containing double-quotes, \n, ...?
- $init->add(qq[hv$hv_index = gv_stashpv("$name", TRUE);]);
- if ($adpmroot) {
- $init->add(sprintf("HvPMROOT(hv$hv_index) = (PMOP*)s\\_%x;",
- $adpmroot));
- }
- $sym = savesym($hv, "hv$hv_index");
- $hv_index++;
- return $sym;
- }
- # It's just an ordinary HV
- $xpvhvsect->add(sprintf("0, 0, %d, 0, 0.0, 0, Nullhv, %d, 0, 0, 0",
- $hv->MAX, $hv->RITER));
- $svsect->add(sprintf("&xpvhv_list[%d], %lu, 0x%x",
- $xpvhvsect->index, $hv->REFCNT , $hv->FLAGS));
- my $sv_list_index = $svsect->index;
- my @contents = $hv->ARRAY;
- if (@contents) {
- my $i;
- for ($i = 1; $i < @contents; $i += 2) {
- $contents[$i] = $contents[$i]->save;
- }
- $init->no_split;
- $init->add("{", "\tHV *hv = (HV*)&sv_list[$sv_list_index];");
- while (@contents) {
- my ($key, $value) = splice(@contents, 0, 2);
- $init->add(sprintf("\thv_store(hv, %s, %u, %s, %s);",
- cstring($key),length(pack "a*",$key),
- $value, hash($key)));
-# $init->add(sprintf("\thv_store(hv, %s, %u, %s, %s);",
-# cstring($key),length($key),$value, 0));
- }
- $init->add("}");
- $init->split;
- }
- $hv->save_magic();
- return savesym($hv, "(HV*)&sv_list[$sv_list_index]");
-}
-
-sub B::IO::save_data {
- my( $io, $globname, @data ) = @_;
- my $data = join '', @data;
-
- # XXX using $DATA might clobber it!
- my $sym = svref_2object( \\$data )->save;
- $init->add( split /\n/, <<CODE );
- {
- GV* gv = (GV*)gv_fetchpv( "$globname", TRUE, SVt_PV );
- SV* sv = $sym;
- GvSV( gv ) = sv;
- }
-CODE
- # for PerlIO::scalar
- $use_xsloader = 1;
- $init->add_eval( sprintf 'open(%s, "<", $%s)', $globname, $globname );
-}
-
-sub B::IO::save {
- my ($io) = @_;
- my $sym = objsym($io);
- return $sym if defined $sym;
- my $pv = $io->PV;
- $pv = '' unless defined $pv;
- my $len = length($pv);
- $xpviosect->add(sprintf("0, %u, %u, %d, %s, 0, 0, 0, 0, 0, %d, %d, %d, %d, %s, Nullgv, %s, Nullgv, %s, Nullgv, %d, %s, 0x%x",
- $len, $len+1, $io->IVX, $io->NVX, $io->LINES,
- $io->PAGE, $io->PAGE_LEN, $io->LINES_LEFT,
- cstring($io->TOP_NAME), cstring($io->FMT_NAME),
- cstring($io->BOTTOM_NAME), $io->SUBPROCESS,
- cchar($io->IoTYPE), $io->IoFLAGS));
- $svsect->add(sprintf("&xpvio_list[%d], %lu, 0x%x",
- $xpviosect->index, $io->REFCNT , $io->FLAGS));
- $sym = savesym($io, sprintf("(IO*)&sv_list[%d]", $svsect->index));
- # deal with $x = *STDIN/STDOUT/STDERR{IO}
- my $perlio_func;
- foreach ( qw(stdin stdout stderr) ) {
- $io->IsSTD($_) and $perlio_func = $_;
- }
- if( $perlio_func ) {
- $init->add( "IoIFP(${sym})=PerlIO_${perlio_func}();" );
- $init->add( "IoOFP(${sym})=PerlIO_${perlio_func}();" );
- }
-
- my ($field, $fsym);
- foreach $field (qw(TOP_GV FMT_GV BOTTOM_GV)) {
- $fsym = $io->$field();
- if ($$fsym) {
- $init->add(sprintf("Io$field($sym) = (GV*)s\\_%x;", $$fsym));
- $fsym->save;
- }
- }
- $io->save_magic;
- return $sym;
-}
-
-sub B::SV::save {
- my $sv = shift;
- # This is where we catch an honest-to-goodness Nullsv (which gets
- # blessed into B::SV explicitly) and any stray erroneous SVs.
- return 0 unless $$sv;
- confess sprintf("cannot save that type of SV: %s (0x%x)\n",
- class($sv), $$sv);
-}
-
-sub output_all {
- my $init_name = shift;
- my $section;
- my @sections = ($opsect, $unopsect, $binopsect, $logopsect, $condopsect,
- $listopsect, $pmopsect, $svopsect, $padopsect, $pvopsect,
- $loopsect, $copsect, $svsect, $xpvsect,
- $xpvavsect, $xpvhvsect, $xpvcvsect, $xpvivsect, $xpvnvsect,
- $xpvmgsect, $xpvlvsect, $xrvsect, $xpvbmsect, $xpviosect);
- $symsect->output(\*STDOUT, "#define %s\n");
- print "\n";
- output_declarations();
- foreach $section (@sections) {
- my $lines = $section->index + 1;
- if ($lines) {
- my $name = $section->name;
- my $typename = ($name eq "xpvcv") ? "XPVCV_or_similar" : uc($name);
- print "Static $typename ${name}_list[$lines];\n";
- }
- }
- # XXX hack for when Perl accesses PVX of GVs
- print 'Static char emptystring[] = "\0";';
-
- $decl->output(\*STDOUT, "%s\n");
- print "\n";
- foreach $section (@sections) {
- my $lines = $section->index + 1;
- if ($lines) {
- my $name = $section->name;
- my $typename = ($name eq "xpvcv") ? "XPVCV_or_similar" : uc($name);
- printf "static %s %s_list[%u] = {\n", $typename, $name, $lines;
- $section->output(\*STDOUT, "\t{ %s }, /* %d */\n");
- print "};\n\n";
- }
- }
-
- $init->output(\*STDOUT, "\t%s\n", $init_name );
- if ($verbose) {
- warn compile_stats();
- warn "NULLOP count: $nullop_count\n";
- }
-}
-
-sub output_declarations {
- print <<'EOT';
-#ifdef BROKEN_STATIC_REDECL
-#define Static extern
-#else
-#define Static static
-#endif /* BROKEN_STATIC_REDECL */
-
-#ifdef BROKEN_UNION_INIT
-/*
- * Cribbed from cv.h with ANY (a union) replaced by void*.
- * Some pre-Standard compilers can't cope with initialising unions. Ho hum.
- */
-typedef struct {
- char * xpv_pv; /* pointer to malloced string */
- STRLEN xpv_cur; /* length of xp_pv as a C string */
- STRLEN xpv_len; /* allocated size */
- IV xof_off; /* integer value */
- NV xnv_nv; /* numeric value, if any */
- MAGIC* xmg_magic; /* magic for scalar array */
- HV* xmg_stash; /* class package */
-
- HV * xcv_stash;
- OP * xcv_start;
- OP * xcv_root;
- void (*xcv_xsub) (pTHX_ CV*);
- ANY xcv_xsubany;
- GV * xcv_gv;
- char * xcv_file;
- long xcv_depth; /* >= 2 indicates recursive call */
- AV * xcv_padlist;
- CV * xcv_outside;
-EOT
- print <<'EOT' if $] < 5.009;
-#ifdef USE_5005THREADS
- perl_mutex *xcv_mutexp;
- struct perl_thread *xcv_owner; /* current owner thread */
-#endif /* USE_5005THREADS */
-EOT
- print <<'EOT';
- cv_flags_t xcv_flags;
- U32 xcv_outside_seq; /* the COP sequence (at the point of our
- * compilation) in the lexically enclosing
- * sub */
-} XPVCV_or_similar;
-#define ANYINIT(i) i
-#else
-#define XPVCV_or_similar XPVCV
-#define ANYINIT(i) {i}
-#endif /* BROKEN_UNION_INIT */
-#define Nullany ANYINIT(0)
-
-#define UNUSED 0
-#define sym_0 0
-EOT
- print "static GV *gv_list[$gv_index];\n" if $gv_index;
- print "\n";
-}
-
-
-sub output_boilerplate {
- print <<'EOT';
-#include "EXTERN.h"
-#include "perl.h"
-#include "XSUB.h"
-
-/* Workaround for mapstart: the only op which needs a different ppaddr */
-#undef Perl_pp_mapstart
-#define Perl_pp_mapstart Perl_pp_grepstart
-#undef OP_MAPSTART
-#define OP_MAPSTART OP_GREPSTART
-#define XS_DynaLoader_boot_DynaLoader boot_DynaLoader
-EXTERN_C void boot_DynaLoader (pTHX_ CV* cv);
-
-static void xs_init (pTHX);
-static void dl_init (pTHX);
-static PerlInterpreter *my_perl;
-EOT
-}
-
-sub init_op_addr {
- my( $op_type, $num ) = @_;
- my $op_list = $op_type."_list";
-
- $init->add( split /\n/, <<EOT );
- {
- int i;
-
- for( i = 0; i < ${num}; ++i )
- {
- ${op_list}\[i].op_ppaddr = PL_ppaddr[INT2PTR(int,${op_list}\[i].op_ppaddr)];
- }
- }
-EOT
-}
-
-sub init_op_warn {
- my( $op_type, $num ) = @_;
- my $op_list = $op_type."_list";
-
- # for resons beyond imagination, MSVC5 considers pWARN_ALL non-const
- $init->add( split /\n/, <<EOT );
- {
- int i;
-
- for( i = 0; i < ${num}; ++i )
- {
- switch( (int)(${op_list}\[i].cop_warnings) )
- {
- case 1:
- ${op_list}\[i].cop_warnings = pWARN_ALL;
- break;
- case 2:
- ${op_list}\[i].cop_warnings = pWARN_NONE;
- break;
- case 3:
- ${op_list}\[i].cop_warnings = pWARN_STD;
- break;
- default:
- break;
- }
- }
- }
-EOT
-}
-
-sub output_main {
- print <<'EOT';
-/* if USE_IMPLICIT_SYS, we need a 'real' exit */
-#if defined(exit)
-#undef exit
-#endif
-
-int
-main(int argc, char **argv, char **env)
-{
- int exitstatus;
- int i;
- char **fakeargv;
- GV* tmpgv;
- SV* tmpsv;
- int options_count;
-
- PERL_SYS_INIT3(&argc,&argv,&env);
-
- if (!PL_do_undump) {
- my_perl = perl_alloc();
- if (!my_perl)
- exit(1);
- perl_construct( my_perl );
- PL_perl_destruct_level = 0;
- }
-EOT
- if( $ithreads ) {
- # XXX init free elems!
- my $pad_len = regex_padav->FILL + 1 - 1; # first is an avref
-
- print <<EOT;
-#ifdef USE_ITHREADS
- for( i = 0; i < $pad_len; ++i ) {
- av_push( PL_regex_padav, newSViv(0) );
- }
- PL_regex_pad = AvARRAY( PL_regex_padav );
-#endif
-EOT
- }
-
- print <<'EOT';
-#ifdef CSH
- if (!PL_cshlen)
- PL_cshlen = strlen(PL_cshname);
-#endif
-
-#ifdef ALLOW_PERL_OPTIONS
-#define EXTRA_OPTIONS 3
-#else
-#define EXTRA_OPTIONS 4
-#endif /* ALLOW_PERL_OPTIONS */
- Newx(fakeargv, argc + EXTRA_OPTIONS + 1, char *);
-
- fakeargv[0] = argv[0];
- fakeargv[1] = "-e";
- fakeargv[2] = "";
- options_count = 3;
-EOT
- # honour -T
- print <<EOT;
- if( ${^TAINT} ) {
- fakeargv[options_count] = "-T";
- ++options_count;
- }
-EOT
- print <<'EOT';
-#ifndef ALLOW_PERL_OPTIONS
- fakeargv[options_count] = "--";
- ++options_count;
-#endif /* ALLOW_PERL_OPTIONS */
- for (i = 1; i < argc; i++)
- fakeargv[i + options_count - 1] = argv[i];
- fakeargv[argc + options_count - 1] = 0;
-
- exitstatus = perl_parse(my_perl, xs_init, argc + options_count - 1,
- fakeargv, NULL);
-
- if (exitstatus)
- exit( exitstatus );
-
- TAINT;
-EOT
-
- if( $use_perl_script_name ) {
- my $dollar_0 = $0;
- $dollar_0 =~ s/\\/\\\\/g;
- $dollar_0 = '"' . $dollar_0 . '"';
-
- print <<EOT;
- if ((tmpgv = gv_fetchpv("0",TRUE, SVt_PV))) {/* $0 */
- tmpsv = GvSV(tmpgv);
- sv_setpv(tmpsv, ${dollar_0});
- SvSETMAGIC(tmpsv);
- }
-EOT
- }
- else {
- print <<EOT;
- if ((tmpgv = gv_fetchpv("0",TRUE, SVt_PV))) {/* $0 */
- tmpsv = GvSV(tmpgv);
- sv_setpv(tmpsv, argv[0]);
- SvSETMAGIC(tmpsv);
- }
-EOT
- }
-
- print <<'EOT';
- if ((tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))) {/* $^X */
- tmpsv = GvSV(tmpgv);
-#ifdef WIN32
- sv_setpv(tmpsv,"perl.exe");
-#else
- sv_setpv(tmpsv,"perl");
-#endif
- SvSETMAGIC(tmpsv);
- }
-
- TAINT_NOT;
-
- /* PL_main_cv = PL_compcv; */
- PL_compcv = 0;
-
- exitstatus = perl_init();
- if (exitstatus)
- exit( exitstatus );
- dl_init(aTHX);
-
- exitstatus = perl_run( my_perl );
-
- perl_destruct( my_perl );
- perl_free( my_perl );
-
- PERL_SYS_TERM();
-
- exit( exitstatus );
-}
-
-/* yanked from perl.c */
-static void
-xs_init(pTHX)
-{
- char *file = __FILE__;
- dTARG;
- dSP;
-EOT
- print "\n#ifdef USE_DYNAMIC_LOADING";
- print qq/\n\tnewXS("DynaLoader::boot_DynaLoader", boot_DynaLoader, file);/;
- print "\n#endif\n" ;
- # delete $xsub{'DynaLoader'};
- delete $xsub{'UNIVERSAL'};
- print("/* bootstrapping code*/\n\tSAVETMPS;\n");
- print("\ttarg=sv_newmortal();\n");
- print "#ifdef USE_DYNAMIC_LOADING\n";
- print "\tPUSHMARK(sp);\n";
- print qq/\tXPUSHp("DynaLoader",strlen("DynaLoader"));\n/;
- print qq/\tPUTBACK;\n/;
- print "\tboot_DynaLoader(aTHX_ NULL);\n";
- print qq/\tSPAGAIN;\n/;
- print "#endif\n";
- foreach my $stashname (keys %xsub){
- if ($xsub{$stashname} !~ m/Dynamic/ ) {
- my $stashxsub=$stashname;
- $stashxsub =~ s/::/__/g;
- print "\tPUSHMARK(sp);\n";
- print qq/\tXPUSHp("$stashname",strlen("$stashname"));\n/;
- print qq/\tPUTBACK;\n/;
- print "\tboot_$stashxsub(aTHX_ NULL);\n";
- print qq/\tSPAGAIN;\n/;
- }
- }
- print("\tFREETMPS;\n/* end bootstrapping code */\n");
- print "}\n";
-
-print <<'EOT';
-static void
-dl_init(pTHX)
-{
- char *file = __FILE__;
- dTARG;
- dSP;
-EOT
- print("/* Dynamicboot strapping code*/\n\tSAVETMPS;\n");
- print("\ttarg=sv_newmortal();\n");
- foreach my $stashname (@DynaLoader::dl_modules) {
- warn "Loaded $stashname\n";
- if (exists($xsub{$stashname}) && $xsub{$stashname} =~ m/Dynamic/) {
- my $stashxsub=$stashname;
- $stashxsub =~ s/::/__/g;
- print "\tPUSHMARK(sp);\n";
- print qq/\tXPUSHp("$stashname",/,length($stashname),qq/);\n/;
- print qq/\tPUTBACK;\n/;
- print "#ifdef USE_DYNAMIC_LOADING\n";
- warn "bootstrapping $stashname added to xs_init\n";
- if( $xsub{$stashname} eq 'Dynamic' ) {
- print qq/\tperl_call_method("bootstrap",G_DISCARD);\n/;
- }
- else {
- print qq/\tperl_call_pv("XSLoader::load",G_DISCARD);\n/;
- }
- print "#else\n";
- print "\tboot_$stashxsub(aTHX_ NULL);\n";
- print "#endif\n";
- print qq/\tSPAGAIN;\n/;
- }
- }
- print("\tFREETMPS;\n/* end Dynamic bootstrapping code */\n");
- print "}\n";
-}
-sub dump_symtable {
- # For debugging
- my ($sym, $val);
- warn "----Symbol table:\n";
- while (($sym, $val) = each %symtable) {
- warn "$sym => $val\n";
- }
- warn "---End of symbol table\n";
-}
-
-sub save_object {
- my $sv;
- foreach $sv (@_) {
- svref_2object($sv)->save;
- }
-}
-
-sub Dummy_BootStrap { }
-
-sub B::GV::savecv
-{
- my $gv = shift;
- my $package=$gv->STASH->NAME;
- my $name = $gv->NAME;
- my $cv = $gv->CV;
- my $sv = $gv->SV;
- my $av = $gv->AV;
- my $hv = $gv->HV;
-
- my $fullname = $gv->STASH->NAME . "::" . $gv->NAME;
-
- # We may be looking at this package just because it is a branch in the
- # symbol table which is on the path to a package which we need to save
- # e.g. this is 'Getopt' and we need to save 'Getopt::Long'
- #
- return unless ($unused_sub_packages{$package});
- return unless ($$cv || $$av || $$sv || $$hv);
- $gv->save;
-}
-
-sub mark_package
-{
- my $package = shift;
- unless ($unused_sub_packages{$package})
- {
- no strict 'refs';
- $unused_sub_packages{$package} = 1;
- if (defined @{$package.'::ISA'})
- {
- foreach my $isa (@{$package.'::ISA'})
- {
- if ($isa eq 'DynaLoader')
- {
- unless (defined(&{$package.'::bootstrap'}))
- {
- warn "Forcing bootstrap of $package\n";
- eval { $package->bootstrap };
- }
- }
-# else
- {
- unless ($unused_sub_packages{$isa})
- {
- warn "$isa saved (it is in $package\'s \@ISA)\n";
- mark_package($isa);
- }
- }
- }
- }
- }
- return 1;
-}
-
-sub should_save
-{
- no strict qw(vars refs);
- my $package = shift;
- $package =~ s/::$//;
- return $unused_sub_packages{$package} = 0 if ($package =~ /::::/); # skip ::::ISA::CACHE etc.
- # warn "Considering $package\n";#debug
- foreach my $u (grep($unused_sub_packages{$_},keys %unused_sub_packages))
- {
- # If this package is a prefix to something we are saving, traverse it
- # but do not mark it for saving if it is not already
- # e.g. to get to Getopt::Long we need to traverse Getopt but need
- # not save Getopt
- return 1 if ($u =~ /^$package\:\:/);
- }
- if (exists $unused_sub_packages{$package})
- {
- # warn "Cached $package is ".$unused_sub_packages{$package}."\n";
- delete_unsaved_hashINC($package) unless $unused_sub_packages{$package} ;
- return $unused_sub_packages{$package};
- }
- # Omit the packages which we use (and which cause grief
- # because of fancy "goto &$AUTOLOAD" stuff).
- # XXX Surely there must be a nicer way to do this.
- if ($package eq "FileHandle" || $package eq "Config" ||
- $package eq "SelectSaver" || $package =~/^(B|IO)::/)
- {
- delete_unsaved_hashINC($package);
- return $unused_sub_packages{$package} = 0;
- }
- # Now see if current package looks like an OO class this is probably too strong.
- foreach my $m (qw(new DESTROY TIESCALAR TIEARRAY TIEHASH TIEHANDLE))
- {
- if (UNIVERSAL::can($package, $m))
- {
- warn "$package has method $m: saving package\n";#debug
- return mark_package($package);
- }
- }
- delete_unsaved_hashINC($package);
- return $unused_sub_packages{$package} = 0;
-}
-sub delete_unsaved_hashINC{
- my $packname=shift;
- $packname =~ s/\:\:/\//g;
- $packname .= '.pm';
-# warn "deleting $packname" if $INC{$packname} ;# debug
- delete $INC{$packname};
-}
-sub walkpackages
-{
- my ($symref, $recurse, $prefix) = @_;
- my $sym;
- my $ref;
- no strict 'vars';
- $prefix = '' unless defined $prefix;
- while (($sym, $ref) = each %$symref)
- {
- local(*glob);
- *glob = $ref;
- if ($sym =~ /::$/)
- {
- $sym = $prefix . $sym;
- if ($sym ne "main::" && $sym ne "<none>::" && &$recurse($sym))
- {
- walkpackages(\%glob, $recurse, $sym);
- }
- }
- }
-}
-
-
-sub save_unused_subs
-{
- no strict qw(refs);
- &descend_marked_unused;
- warn "Prescan\n";
- walkpackages(\%{"main::"}, sub { should_save($_[0]); return 1 });
- warn "Saving methods\n";
- walksymtable(\%{"main::"}, "savecv", \&should_save);
-}
-
-sub save_context
-{
- my $curpad_nam = (comppadlist->ARRAY)[0]->save;
- my $curpad_sym = (comppadlist->ARRAY)[1]->save;
- my $inc_hv = svref_2object(\%INC)->save;
- my $inc_av = svref_2object(\@INC)->save;
- my $amagic_generate= amagic_generation;
- $init->add( "PL_curpad = AvARRAY($curpad_sym);",
- "GvHV(PL_incgv) = $inc_hv;",
- "GvAV(PL_incgv) = $inc_av;",
- "av_store(CvPADLIST(PL_main_cv),0,SvREFCNT_inc($curpad_nam));",
- "av_store(CvPADLIST(PL_main_cv),1,SvREFCNT_inc($curpad_sym));",
- "PL_amagic_generation= $amagic_generate;" );
-}
-
-sub descend_marked_unused {
- foreach my $pack (keys %unused_sub_packages)
- {
- mark_package($pack);
- }
-}
-
-sub save_main {
- # this is mainly for the test suite
- my $warner = $SIG{__WARN__};
- local $SIG{__WARN__} = sub { print STDERR @_ };
-
- warn "Starting compile\n";
- warn "Walking tree\n";
- seek(STDOUT,0,0); #exclude print statements in BEGIN{} into output
- walkoptree(main_root, "save");
- warn "done main optree, walking symtable for extras\n" if $debug_cv;
- save_unused_subs();
- # XSLoader was used, force saving of XSLoader::load
- if( $use_xsloader ) {
- my $cv = svref_2object( \&XSLoader::load );
- $cv->save;
- }
- # save %SIG ( in case it was set in a BEGIN block )
- if( $save_sig ) {
- local $SIG{__WARN__} = $warner;
- $init->no_split;
- $init->add("{", "\tHV* hv = get_hv(\"main::SIG\",1);" );
- foreach my $k ( keys %SIG ) {
- next unless ref $SIG{$k};
- my $cv = svref_2object( \$SIG{$k} );
- my $sv = $cv->save;
- $init->add('{',sprintf 'SV* sv = (SV*)%s;', $sv );
- $init->add(sprintf("\thv_store(hv, %s, %u, %s, %s);",
- cstring($k),length(pack "a*",$k),
- 'sv', hash($k)));
- $init->add('mg_set(sv);','}');
- }
- $init->add('}');
- $init->split;
- }
- # honour -w
- $init->add( sprintf " PL_dowarn = ( %s ) ? G_WARN_ON : G_WARN_OFF;", $^W );
- #
- my $init_av = init_av->save;
- my $end_av = end_av->save;
- $init->add(sprintf("PL_main_root = s\\_%x;", ${main_root()}),
- sprintf("PL_main_start = s\\_%x;", ${main_start()}),
- "PL_initav = (AV *) $init_av;",
- "PL_endav = (AV*) $end_av;");
- save_context();
- # init op addrs ( must be the last action, otherwise
- # some ops might not be initialized
- if( $optimize_ppaddr ) {
- foreach my $i ( @op_sections ) {
- my $section = $$i;
- next unless $section->index >= 0;
- init_op_addr( $section->name, $section->index + 1);
- }
- }
- init_op_warn( $copsect->name, $copsect->index + 1)
- if $optimize_warn_sv && $copsect->index >= 0;
-
- warn "Writing output\n";
- output_boilerplate();
- print "\n";
- output_all("perl_init");
- print "\n";
- output_main();
-}
-
-sub init_sections {
- my @sections = (decl => \$decl, sym => \$symsect,
- binop => \$binopsect, condop => \$condopsect,
- cop => \$copsect, padop => \$padopsect,
- listop => \$listopsect, logop => \$logopsect,
- loop => \$loopsect, op => \$opsect, pmop => \$pmopsect,
- pvop => \$pvopsect, svop => \$svopsect, unop => \$unopsect,
- sv => \$svsect, xpv => \$xpvsect, xpvav => \$xpvavsect,
- xpvhv => \$xpvhvsect, xpvcv => \$xpvcvsect,
- xpviv => \$xpvivsect, xpvnv => \$xpvnvsect,
- xpvmg => \$xpvmgsect, xpvlv => \$xpvlvsect,
- xrv => \$xrvsect, xpvbm => \$xpvbmsect,
- xpvio => \$xpviosect);
- my ($name, $sectref);
- while (($name, $sectref) = splice(@sections, 0, 2)) {
- $$sectref = new B::C::Section $name, \%symtable, 0;
- }
- $init = new B::C::InitSection 'init', \%symtable, 0;
-}
-
-sub mark_unused
-{
- my ($arg,$val) = @_;
- $unused_sub_packages{$arg} = $val;
-}
-
-sub compile {
- my @options = @_;
- my ($option, $opt, $arg);
- my @eval_at_startup;
- my %option_map = ( 'cog' => \$pv_copy_on_grow,
- 'save-data' => \$save_data_fh,
- 'ppaddr' => \$optimize_ppaddr,
- 'warn-sv' => \$optimize_warn_sv,
- 'use-script-name' => \$use_perl_script_name,
- 'save-sig-hash' => \$save_sig,
- );
- my %optimization_map = ( 0 => [ qw() ], # special case
- 1 => [ qw(-fcog) ],
- 2 => [ qw(-fwarn-sv -fppaddr) ],
- );
- OPTION:
- while ($option = shift @options) {
- if ($option =~ /^-(.)(.*)/) {
- $opt = $1;
- $arg = $2;
- } else {
- unshift @options, $option;
- last OPTION;
- }
- if ($opt eq "-" && $arg eq "-") {
- shift @options;
- last OPTION;
- }
- if ($opt eq "w") {
- $warn_undefined_syms = 1;
- } elsif ($opt eq "D") {
- $arg ||= shift @options;
- foreach $arg (split(//, $arg)) {
- if ($arg eq "o") {
- B->debug(1);
- } elsif ($arg eq "c") {
- $debug_cops = 1;
- } elsif ($arg eq "A") {
- $debug_av = 1;
- } elsif ($arg eq "C") {
- $debug_cv = 1;
- } elsif ($arg eq "M") {
- $debug_mg = 1;
- } else {
- warn "ignoring unknown debug option: $arg\n";
- }
- }
- } elsif ($opt eq "o") {
- $arg ||= shift @options;
- open(STDOUT, ">$arg") or return "$arg: $!\n";
- } elsif ($opt eq "v") {
- $verbose = 1;
- } elsif ($opt eq "u") {
- $arg ||= shift @options;
- mark_unused($arg,undef);
- } elsif ($opt eq "f") {
- $arg ||= shift @options;
- $arg =~ m/(no-)?(.*)/;
- my $no = defined($1) && $1 eq 'no-';
- $arg = $no ? $2 : $arg;
- if( exists $option_map{$arg} ) {
- ${$option_map{$arg}} = !$no;
- } else {
- die "Invalid optimization '$arg'";
- }
- } elsif ($opt eq "O") {
- $arg = 1 if $arg eq "";
- my @opt;
- foreach my $i ( 1 .. $arg ) {
- push @opt, @{$optimization_map{$i}}
- if exists $optimization_map{$i};
- }
- unshift @options, @opt;
- } elsif ($opt eq "e") {
- push @eval_at_startup, $arg;
- } elsif ($opt eq "l") {
- $max_string_len = $arg;
- }
- }
- init_sections();
- foreach my $i ( @eval_at_startup ) {
- $init->add_eval( $i );
- }
- if (@options) {
- return sub {
- my $objname;
- foreach $objname (@options) {
- eval "save_object(\\$objname)";
- }
- output_all();
- }
- } else {
- return sub { save_main() };
- }
-}
-
-1;
-
-__END__
-
-=head1 NAME
-
-B::C - Perl compiler's C backend
-
-=head1 SYNOPSIS
-
- perl -MO=C[,OPTIONS] foo.pl
-
-=head1 DESCRIPTION
-
-This compiler backend takes Perl source and generates C source code
-corresponding to the internal structures that perl uses to run
-your program. When the generated C source is compiled and run, it
-cuts out the time which perl would have taken to load and parse
-your program into its internal semi-compiled form. That means that
-compiling with this backend will not help improve the runtime
-execution speed of your program but may improve the start-up time.
-Depending on the environment in which your program runs this may be
-either a help or a hindrance.
-
-=head1 OPTIONS
-
-If there are any non-option arguments, they are taken to be
-names of objects to be saved (probably doesn't work properly yet).
-Without extra arguments, it saves the main program.
-
-=over 4
-
-=item B<-ofilename>
-
-Output to filename instead of STDOUT
-
-=item B<-v>
-
-Verbose compilation (currently gives a few compilation statistics).
-
-=item B<-->
-
-Force end of options
-
-=item B<-uPackname>
-
-Force apparently unused subs from package Packname to be compiled.
-This allows programs to use eval "foo()" even when sub foo is never
-seen to be used at compile time. The down side is that any subs which
-really are never used also have code generated. This option is
-necessary, for example, if you have a signal handler foo which you
-initialise with C<$SIG{BAR} = "foo">. A better fix, though, is just
-to change it to C<$SIG{BAR} = \&foo>. You can have multiple B<-u>
-options. The compiler tries to figure out which packages may possibly
-have subs in which need compiling but the current version doesn't do
-it very well. In particular, it is confused by nested packages (i.e.
-of the form C<A::B>) where package C<A> does not contain any subs.
-
-=item B<-D>
-
-Debug options (concatenated or separate flags like C<perl -D>).
-
-=item B<-Do>
-
-OPs, prints each OP as it's processed
-
-=item B<-Dc>
-
-COPs, prints COPs as processed (incl. file & line num)
-
-=item B<-DA>
-
-prints AV information on saving
-
-=item B<-DC>
-
-prints CV information on saving
-
-=item B<-DM>
-
-prints MAGIC information on saving
-
-=item B<-f>
-
-Force options/optimisations on or off one at a time. You can explicitly
-disable an option using B<-fno-option>. All options default to
-B<disabled>.
-
-=over 4
-
-=item B<-fcog>
-
-Copy-on-grow: PVs declared and initialised statically.
-
-=item B<-fsave-data>
-
-Save package::DATA filehandles ( only available with PerlIO ).
-
-=item B<-fppaddr>
-
-Optimize the initialization of op_ppaddr.
-
-=item B<-fwarn-sv>
-
-Optimize the initialization of cop_warnings.
-
-=item B<-fuse-script-name>
-
-Use the script name instead of the program name as $0.
-
-=item B<-fsave-sig-hash>
-
-Save compile-time modifications to the %SIG hash.
-
-=back
-
-=item B<-On>
-
-Optimisation level (n = 0, 1, 2, ...). B<-O> means B<-O1>.
-
-=over 4
-
-=item B<-O0>
-
-Disable all optimizations.
-
-=item B<-O1>
-
-Enable B<-fcog>.
-
-=item B<-O2>
-
-Enable B<-fppaddr>, B<-fwarn-sv>.
-
-=back
-
-=item B<-llimit>
-
-Some C compilers impose an arbitrary limit on the length of string
-constants (e.g. 2048 characters for Microsoft Visual C++). The
-B<-llimit> options tells the C backend not to generate string literals
-exceeding that limit.
-
-=back
-
-=head1 EXAMPLES
-
- perl -MO=C,-ofoo.c foo.pl
- perl cc_harness -o foo foo.c
-
-Note that C<cc_harness> lives in the C<B> subdirectory of your perl
-library directory. The utility called C<perlcc> may also be used to
-help make use of this compiler.
-
- perl -MO=C,-v,-DcA,-l2048 bar.pl > /dev/null
-
-=head1 BUGS
-
-Plenty. Current status: experimental.
-
-=head1 AUTHOR
-
-Malcolm Beattie, C<mbeattie@sable.ox.ac.uk>
-
-=cut