X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/2faa37ccf8e46b865687f0ab4992b29a75eb79ea..1f763251de9d15bd843d41adf21f5de7aa72b2ea:/opcode.pl

diff --git a/opcode.pl b/opcode.pl
index c67f142..f2b876d 100755
--- a/opcode.pl
+++ b/opcode.pl
@@ -29,10 +29,15 @@ while (<DATA>) {
 
 $i = 0;
 print <<"END";
-#define pp_i_preinc pp_preinc
-#define pp_i_predec pp_predec
-#define pp_i_postinc pp_postinc
-#define pp_i_postdec pp_postdec
+/* !!!!!!!   DO NOT EDIT THIS FILE   !!!!!!! 
+   This file is built by opcode.pl from its data.  Any changes made here
+   will be lost!
+*/
+
+#define Perl_pp_i_preinc Perl_pp_preinc
+#define Perl_pp_i_predec Perl_pp_predec
+#define Perl_pp_i_postinc Perl_pp_postinc
+#define Perl_pp_i_postdec Perl_pp_postdec
 
 typedef enum {
 END
@@ -46,10 +51,13 @@ print "\n#define MAXO ", scalar @ops, "\n\n";
 # Emit op names and descriptions.
 
 print <<END;
+
+START_EXTERN_C
+
 #ifndef DOINIT
-EXT char *op_name[];
+EXT char *PL_op_name[];
 #else
-EXT char *op_name[] = {
+EXT char *PL_op_name[] = {
 END
 
 for (@ops) {
@@ -64,9 +72,9 @@ END
 
 print <<END;
 #ifndef DOINIT
-EXT char *op_desc[];
+EXT char *PL_op_desc[];
 #else
-EXT char *op_desc[] = {
+EXT char *PL_op_desc[] = {
 END
 
 for (@ops) {
@@ -77,32 +85,36 @@ print <<END;
 };
 #endif
 
+END_EXTERN_C
+
 END
 
 # Emit function declarations.
 
-for (sort keys %ckname) {
-    print "OP *\t", &tab(3,$_),"_((OP* o));\n";
-}
-
-print "\n";
-
-for (@ops) {
-    print "OP *\t", &tab(3, "pp_$_"), "_((ARGSproto));\n";
-}
+#for (sort keys %ckname) {
+#    print "OP *\t", &tab(3,$_),"(pTHX_ OP* o);\n";
+#}
+#
+#print "\n";
+#
+#for (@ops) {
+#    print "OP *\t", &tab(3, "pp_$_"), "(pTHX);\n";
+#}
 
 # Emit ppcode switch array.
 
 print <<END;
 
+START_EXTERN_C
+
 #ifndef DOINIT
-EXT OP * (*ppaddr[])();
+EXT OP * (CPERLscope(*PL_ppaddr)[])(pTHX);
 #else
-EXT OP * (*ppaddr[])() = {
+EXT OP * (CPERLscope(*PL_ppaddr)[])(pTHX) = {
 END
 
 for (@ops) {
-    print "\tpp_$_,\n";
+    print "\tPerl_pp_$_,\n";
 }
 
 print <<END;
@@ -115,13 +127,13 @@ END
 
 print <<END;
 #ifndef DOINIT
-EXT OP * (*check[]) _((OP *op));
+EXT OP * (CPERLscope(*PL_check)[]) (pTHX_ OP *op);
 #else
-EXT OP * (*check[]) _((OP *op)) = {
+EXT OP * (CPERLscope(*PL_check)[]) (pTHX_ OP *op) = {
 END
 
 for (@ops) {
-    print "\t", &tab(3, "$check{$_},"), "/* $_ */\n";
+    print "\t", &tab(3, "Perl_$check{$_},"), "/* $_ */\n";
 }
 
 print <<END;
@@ -134,9 +146,9 @@ END
 
 print <<END;
 #ifndef DOINIT
-EXT U32 opargs[];
+EXT U32 PL_opargs[];
 #else
-EXT U32 opargs[] = {
+EXT U32 PL_opargs[] = {
 END
 
 %argnum = (
@@ -154,17 +166,16 @@ END
     '1',  1,		# unop
     '2',  2,		# binop
     '|',  3,		# logop
-    '?',  4,		# condop
-    '@',  5,		# listop
-    '/',  6,		# pmop
-    '$',  7,		# svop
-    '*',  8,		# gvop
-    '"',  9,		# pvop
-    '{',  10,		# loop
-    ';',  11,		# cop
-    '%',  12,		# baseop_or_unop
-    '-',  13,		# filestatop
-    '}',  14,		# loopexop
+    '@',  4,		# listop
+    '/',  5,		# pmop
+    '$',  6,		# svop
+    '*',  7,		# gvop
+    '"',  8,		# pvop_or_svop
+    '{',  9,		# loop
+    ';',  10,		# cop
+    '%',  11,		# baseop_or_unop
+    '-',  12,		# filestatop
+    '}',  13,		# loopexop
 );
 
 for (@ops) {
@@ -174,17 +185,20 @@ for (@ops) {
     $argsum |= 2 if $flags =~ /f/;		# fold constants
     $argsum |= 4 if $flags =~ /s/;		# always produces scalar
     $argsum |= 8 if $flags =~ /t/;		# needs target scalar
+    $argsum |= (8|256) if $flags =~ /T/;	# ... which may be lexical
     $argsum |= 16 if $flags =~ /i/;		# always produces integer
     $argsum |= 32 if $flags =~ /I/;		# has corresponding int op
     $argsum |= 64 if $flags =~ /d/;		# danger, unknown side effects
     $argsum |= 128 if $flags =~ /u/;		# defaults to $_
 
-    $flags =~ /([^a-zA-Z])/ or die qq[Opcode "$_" has no class indicator];
-    $argsum |= $opclass{$1} << 8;
-    $mul = 4096;				# 2 ^ OASHIFT
+    $flags =~ /([\W\d_])/ or die qq[Opcode "$_" has no class indicator];
+    $argsum |= $opclass{$1} << 9;
+    $mul = 0x2000;				# 2 ^ OASHIFT
     for $arg (split(' ',$args{$_})) {
 	$argnum = ($arg =~ s/\?//) ? 8 : 0;
 	$argnum += $argnum{$arg};
+	warn "# Conflicting bit 32 for '$_'.\n"
+	    if $argnum & 8 and $mul == 0x10000000;
 	$argsum += $argnum * $mul;
 	$mul <<= 4;
     }
@@ -195,8 +209,52 @@ for (@ops) {
 print <<END;
 };
 #endif
+
+END_EXTERN_C
+END
+
+close OC or die "Error closing opcode.h: $!";
+
+unlink "pp_proto.h";
+unlink "pp.sym";
+open PP, '>pp_proto.h' or die "Error creating pp_proto.h: $!";
+open PPSYM, '>pp.sym' or die "Error creating pp.sym: $!";
+
+print PP <<"END";
+/* !!!!!!!   DO NOT EDIT THIS FILE   !!!!!!! 
+   This file is built by opcode.pl from its data.  Any changes made here
+   will be lost!
+*/
+
+END
+
+print PPSYM <<"END";
+#
+# !!!!!!!   DO NOT EDIT THIS FILE   !!!!!!! 
+#   This file is built by opcode.pl from its data.  Any changes made here
+#   will be lost!
+#
+
 END
 
+
+for (sort keys %ckname) {
+    print PP "PERL_CKDEF(Perl_$_)\n";
+    print PPSYM "Perl_$_\n";
+#OP *\t", &tab(3,$_),"(OP* o);\n";
+}
+
+print PP "\n\n";
+
+for (@ops) {
+    next if /^i_(pre|post)(inc|dec)$/;
+    print PP "PERL_PPDEF(Perl_pp_$_)\n";
+    print PPSYM "Perl_pp_$_\n";
+}
+
+close PP or die "Error closing pp_proto.h: $!";
+close PPSYM or die "Error closing pp.sym: $!";
+
 ###########################################################################
 sub tab {
     local($l, $t) = @_;
@@ -204,8 +262,47 @@ sub tab {
     $t;
 }
 ###########################################################################
+
+# Some comments about 'T' opcode classifier:
+
+# Safe to set if the ppcode uses:
+#	tryAMAGICbin, tryAMAGICun, SETn, SETi, SETu, PUSHn, PUSHTARG, SETTARG,
+#	SETs(TARG), XPUSHn, XPUSHu,
+
+# Unsafe to set if the ppcode uses dTARG or [X]RETPUSH[YES|NO|UNDEF]
+
+# lt and friends do SETs (including ncmp, but not scmp)
+
+# pp.c	pos substr each not OK (RETPUSHUNDEF)
+#	substr vec also not OK due to LV to target (are they???)
+#	ref not OK (RETPUSHNO)
+#	trans not OK (dTARG; TARG = sv_newmortal();)
+#	ucfirst etc not OK: TMP arg processed inplace
+#	each repeat not OK too due to array context
+#	pack split - unknown whether they are safe
+
+# pp_hot.c
+#	readline - unknown whether it is safe
+#	match subst not OK (dTARG)
+#	grepwhile not OK (not always setting)
+
+# pp_ctl.c
+#	mapwhile flip caller not OK (not always setting)
+
+# pp_sys.c
+#	backtick glob warn die not OK (not always setting)
+#	warn not OK (RETPUSHYES)
+#	open fileno getc sysread syswrite ioctl accept shutdown
+#	 ftsize(etc) readlink telldir fork alarm getlogin not OK (RETPUSHUNDEF)
+#	umask select not OK (XPUSHs(&PL_sv_undef);)
+#	fileno getc sysread syswrite tell not OK (meth("FILENO" "GETC"))
+#	sselect shm* sem* msg* syscall - unknown whether they are safe
+#	gmtime not OK (list context)
+
 __END__
 
+# New ops always go at the very end
+
 # Nothing.
 
 null		null operation		ck_null		0	
@@ -227,7 +324,7 @@ padav		private array		ck_null		d0
 padhv		private hash		ck_null		d0
 padany		private something	ck_null		d0
 
-pushre		push regexp		ck_null		/
+pushre		push regexp		ck_null		d/
 
 # References and stuff.
 
@@ -237,8 +334,8 @@ av2arylen	array length		ck_null		is1
 rv2cv		subroutine deref	ck_rvconst	d1
 anoncode	anonymous subroutine	ck_anoncode	$	
 prototype	subroutine prototype	ck_null		s%	S
-refgen		reference constructor	ck_spair	m0	L
-srefgen		scalar ref constructor	ck_null		fs0	S
+refgen		reference constructor	ck_spair	m1	L
+srefgen		single ref constructor	ck_null		fs1	S
 ref		reference-type operator	ck_fun		stu%	S?
 bless		bless			ck_fun		s@	S S?
 
@@ -253,8 +350,10 @@ rcatline	append I/O operator	ck_null		t%
 # Bindable operators.
 
 regcmaybe	regexp comp once	ck_fun		s1	S
+regcreset	regexp reset interpolation flag	ck_fun		s1	S
 regcomp		regexp compilation	ck_null		s|	S
 match		pattern match		ck_match	d/
+qr		pattern quote		ck_match	s/
 subst		substitution		ck_null		dis/	S
 substcont	substitution cont	ck_null		dis|	
 trans		character translation	ck_null		is"	S
@@ -262,14 +361,14 @@ trans		character translation	ck_null		is"	S
 # Lvalue operators.
 # sassign is special-cased for op class
 
-sassign		scalar assignment	ck_null		s0
+sassign		scalar assignment	ck_sassign	s0
 aassign		list assignment		ck_null		t2	L L
 
-chop		chop			ck_spair	mts%	L
-schop		scalar chop		ck_null		stu%	S?
-chomp		safe chop		ck_spair	mts%	L
-schomp		scalar safe chop	ck_null		stu%	S?
-defined		defined operator	ck_rfun		isu%	S?
+chop		chop			ck_spair	mTs%	L
+schop		scalar chop		ck_null		sTu%	S?
+chomp		safe chop		ck_spair	mTs%	L
+schomp		scalar safe chop	ck_null		sTu%	S?
+defined		defined operator	ck_defined	isu%	S?
 undef		undef operator		ck_lfun		s%	S?
 study		study			ck_fun		su%	S?
 pos		match position		ck_lfun		stu%	S?
@@ -278,32 +377,32 @@ preinc		preincrement		ck_lfun		dIs1	S
 i_preinc	integer preincrement	ck_lfun		dis1	S
 predec		predecrement		ck_lfun		dIs1	S
 i_predec	integer predecrement	ck_lfun		dis1	S
-postinc		postincrement		ck_lfun		dIst1	S
-i_postinc	integer postincrement	ck_lfun		dist1	S
-postdec		postdecrement		ck_lfun		dIst1	S
-i_postdec	integer postdecrement	ck_lfun		dist1	S
+postinc		postincrement		ck_lfun		dIsT1	S
+i_postinc	integer postincrement	ck_lfun		disT1	S
+postdec		postdecrement		ck_lfun		dIsT1	S
+i_postdec	integer postdecrement	ck_lfun		disT1	S
 
 # Ordinary operators.
 
-pow		exponentiation		ck_null		fst2	S S
+pow		exponentiation		ck_null		fsT2	S S
 
-multiply	multiplication		ck_null		Ifst2	S S
-i_multiply	integer multiplication	ck_null		ifst2	S S
-divide		division		ck_null		Ifst2	S S
-i_divide	integer division	ck_null		ifst2	S S
-modulo		modulus			ck_null		Iifst2	S S
-i_modulo	integer modulus		ck_null		ifst2	S S
+multiply	multiplication		ck_null		IfsT2	S S
+i_multiply	integer multiplication	ck_null		ifsT2	S S
+divide		division		ck_null		IfsT2	S S
+i_divide	integer division	ck_null		ifsT2	S S
+modulo		modulus			ck_null		IifsT2	S S
+i_modulo	integer modulus		ck_null		ifsT2	S S
 repeat		repeat			ck_repeat	mt2	L S
 
-add		addition		ck_null		Ifst2	S S
-i_add		integer addition	ck_null		ifst2	S S
-subtract	subtraction		ck_null		Ifst2	S S
-i_subtract	integer subtraction	ck_null		ifst2	S S
-concat		concatenation		ck_concat	fst2	S S
-stringify	string			ck_fun		fst@	S
+add		addition		ck_null		IfsT2	S S
+i_add		integer addition	ck_null		ifsT2	S S
+subtract	subtraction		ck_null		IfsT2	S S
+i_subtract	integer subtraction	ck_null		ifsT2	S S
+concat		concatenation		ck_concat	fsT2	S S
+stringify	string			ck_fun		fsT@	S
 
-left_shift	left bitshift		ck_bitop	fst2	S S
-right_shift	right bitshift		ck_bitop	fst2	S S
+left_shift	left bitshift		ck_bitop	fsT2	S S
+right_shift	right bitshift		ck_bitop	fsT2	S S
 
 lt		numeric lt		ck_null		Iifs2	S S
 i_lt		integer lt		ck_null		ifs2	S S
@@ -328,52 +427,52 @@ seq		string eq		ck_null		ifs2	S S
 sne		string ne		ck_null		ifs2	S S
 scmp		string comparison	ck_scmp		ifst2	S S
 
-bit_and		bitwise and		ck_bitop	fst2	S S
-bit_xor		bitwise xor		ck_bitop	fst2	S S
-bit_or		bitwise or		ck_bitop	fst2	S S
+bit_and		bitwise and		ck_bitop	fsT2	S S
+bit_xor		bitwise xor		ck_bitop	fsT2	S S
+bit_or		bitwise or		ck_bitop	fsT2	S S
 
-negate		negate			ck_null		Ifst1	S
-i_negate	integer negate		ck_null		ifst1	S
+negate		negate			ck_null		IfsT1	S
+i_negate	integer negate		ck_null		ifsT1	S
 not		not			ck_null		ifs1	S
-complement	1's complement		ck_bitop	fst1	S
+complement	1's complement		ck_bitop	fsT1	S
 
 # High falutin' math.
 
-atan2		atan2			ck_fun		fst@	S S
-sin		sin			ck_fun		fstu%	S?
-cos		cos			ck_fun		fstu%	S?
-rand		rand			ck_fun		st%	S?
+atan2		atan2			ck_fun		fsT@	S S
+sin		sin			ck_fun		fsTu%	S?
+cos		cos			ck_fun		fsTu%	S?
+rand		rand			ck_fun		sT%	S?
 srand		srand			ck_fun		s%	S?
-exp		exp			ck_fun		fstu%	S?
-log		log			ck_fun		fstu%	S?
-sqrt		sqrt			ck_fun		fstu%	S?
+exp		exp			ck_fun		fsTu%	S?
+log		log			ck_fun		fsTu%	S?
+sqrt		sqrt			ck_fun		fsTu%	S?
 
 # Lowbrow math.
 
-int		int			ck_fun		fstu%	S?
-hex		hex			ck_fun		fstu%	S?
-oct		oct			ck_fun		fstu%	S?
-abs		abs			ck_fun		fstu%	S?
+int		int			ck_fun		fsTu%	S?
+hex		hex			ck_fun		fsTu%	S?
+oct		oct			ck_fun		fsTu%	S?
+abs		abs			ck_fun		fsTu%	S?
 
 # String stuff.
 
-length		length			ck_lengthconst	istu%	S?
-substr		substr			ck_fun		st@	S S S?
+length		length			ck_lengthconst	isTu%	S?
+substr		substr			ck_fun		st@	S S S? S?
 vec		vec			ck_fun		ist@	S S S
 
-index		index			ck_index	ist@	S S S?
-rindex		rindex			ck_index	ist@	S S S?
+index		index			ck_index	isT@	S S S?
+rindex		rindex			ck_index	isT@	S S S?
 
-sprintf		sprintf			ck_fun_locale	mfst@	S L
+sprintf		sprintf			ck_fun_locale	mfsT@	S L
 formline	formline		ck_fun		ms@	S L
-ord		ord			ck_fun		ifstu%	S?
-chr		chr			ck_fun		fstu%	S?
-crypt		crypt			ck_fun		fst@	S S
+ord		ord			ck_fun		ifsTu%	S?
+chr		chr			ck_fun		fsTu%	S?
+crypt		crypt			ck_fun		fsT@	S S
 ucfirst		upper case first	ck_fun_locale	fstu%	S?
 lcfirst		lower case first	ck_fun_locale	fstu%	S?
 uc		upper case		ck_fun_locale	fstu%	S?
 lc		lower case		ck_fun_locale	fstu%	S?
-quotemeta	quote metachars		ck_fun		fstu%	S?
+quotemeta	quote metachars		ck_fun		fsTu%	S?
 
 # Arrays.
 
@@ -384,7 +483,7 @@ aslice		array slice		ck_null		m@	A L
 
 # Hashes.
 
-each		each			ck_fun		t%	H
+each		each			ck_fun		%	H
 values		values			ck_fun		t%	H
 keys		keys			ck_fun		t%	H
 delete		delete			ck_delete	%	S
@@ -398,7 +497,7 @@ hslice		hash slice		ck_null		m@	H L
 unpack		unpack			ck_fun		@	S S
 pack		pack			ck_fun		mst@	S L
 split		split			ck_split	t@	S S S
-join		join			ck_fun		mst@	S L
+join		join			ck_fun		msT@	S L
 
 # List operators.
 
@@ -408,10 +507,10 @@ anonlist	anonymous list		ck_fun		ms@	L
 anonhash	anonymous hash		ck_fun		ms@	L
 
 splice		splice			ck_fun		m@	A S? S? L
-push		push			ck_fun		imst@	A L
-pop		pop			ck_shift	si%	A
+push		push			ck_fun		imsT@	A L
+pop		pop			ck_shift	s%	A
 shift		shift			ck_shift	s%	A
-unshift		unshift			ck_fun		imst@	A L
+unshift		unshift			ck_fun		imsT@	A L
 sort		sort			ck_sort		m@	C? L
 reverse		reverse			ck_fun		mt@	L
 
@@ -423,7 +522,7 @@ mapwhile	map iterator		ck_null		dt|
 
 # Range stuff.
 
-range		flipflop		ck_null		?	S S
+range		flipflop		ck_null		|	S S
 flip		range (or flip)		ck_null		1	S S
 flop		range (or flop)		ck_null		1
 
@@ -432,7 +531,7 @@ flop		range (or flop)		ck_null		1
 and		logical and		ck_null		|	
 or		logical or		ck_null		|	
 xor		logical xor		ck_null		fs|	S S	
-cond_expr	conditional expression	ck_null		d?	
+cond_expr	conditional expression	ck_null		d|	
 andassign	logical and assignment	ck_null		s|	
 orassign	logical or assignment	ck_null		s|	
 
@@ -447,7 +546,7 @@ reset		reset			ck_fun		is%	S?
 lineseq		line sequence		ck_null		@	
 nextstate	next statement		ck_null		s;	
 dbstate		debug next statement	ck_null		s;	
-unstack		unstack			ck_null		s0
+unstack		iteration finalizer	ck_null		s0
 enter		block entry		ck_null		0	
 leave		block exit		ck_null		@	
 scope		block			ck_null		@	
@@ -462,6 +561,7 @@ redo		redo			ck_null		ds}
 dump		dump			ck_null		ds}	
 goto		goto			ck_null		ds}	
 exit		exit			ck_fun		ds%	S?
+# continued below
 
 #nswitch		numeric switch		ck_null		d	
 #cswitch		character switch	ck_null		d	
@@ -496,7 +596,7 @@ print		print			ck_listiob	ims@	F? L
 sysopen		sysopen			ck_fun		s@	F S S S?
 sysseek		sysseek			ck_fun		s@	F S S
 sysread		sysread			ck_fun		imst@	F R S S?
-syswrite	syswrite		ck_fun		imst@	F S S S?
+syswrite	syswrite		ck_fun		imst@	F S S? S?
 
 send		send			ck_fun		imst@	F S S S?
 recv		recv			ck_fun		imst@	F R S S
@@ -509,7 +609,7 @@ truncate	truncate		ck_trunc	is@	S S
 
 fcntl		fcntl			ck_fun		st@	F S S
 ioctl		ioctl			ck_fun		st@	F S S
-flock		flock			ck_fun		ist@	F S
+flock		flock			ck_fun		isT@	F S
 
 # Sockets.
 
@@ -562,18 +662,18 @@ ftbinary	-B			ck_ftst		isu-	F
 
 # File calls.
 
-chdir		chdir			ck_fun		ist%	S?
-chown		chown			ck_fun		imst@	L
-chroot		chroot			ck_fun		istu%	S?
-unlink		unlink			ck_fun		imstu@	L
-chmod		chmod			ck_fun		imst@	L
-utime		utime			ck_fun		imst@	L
-rename		rename			ck_fun		ist@	S S
-link		link			ck_fun		ist@	S S
-symlink		symlink			ck_fun		ist@	S S
+chdir		chdir			ck_fun		isT%	S?
+chown		chown			ck_fun		imsT@	L
+chroot		chroot			ck_fun		isTu%	S?
+unlink		unlink			ck_fun		imsTu@	L
+chmod		chmod			ck_fun		imsT@	L
+utime		utime			ck_fun		imsT@	L
+rename		rename			ck_fun		isT@	S S
+link		link			ck_fun		isT@	S S
+symlink		symlink			ck_fun		isT@	S S
 readlink	readlink		ck_fun		stu%	S?
-mkdir		mkdir			ck_fun		ist@	S S
-rmdir		rmdir			ck_fun		istu%	S?
+mkdir		mkdir			ck_fun		isT@	S S
+rmdir		rmdir			ck_fun		isTu%	S?
 
 # Directory calls.
 
@@ -587,25 +687,25 @@ closedir	closedir		ck_fun		is%	F
 # Process control.
 
 fork		fork			ck_null		ist0	
-wait		wait			ck_null		ist0	
-waitpid		waitpid			ck_fun		ist@	S S
-system		system			ck_exec		imst@	S? L
-exec		exec			ck_exec		dimst@	S? L
-kill		kill			ck_fun		dimst@	L
-getppid		getppid			ck_null		ist0	
-getpgrp		getpgrp			ck_fun		ist%	S?
-setpgrp		setpgrp			ck_fun		ist@	S? S?
-getpriority	getpriority		ck_fun		ist@	S S
-setpriority	setpriority		ck_fun		ist@	S S S
+wait		wait			ck_null		isT0	
+waitpid		waitpid			ck_fun		isT@	S S
+system		system			ck_exec		imsT@	S? L
+exec		exec			ck_exec		dimsT@	S? L
+kill		kill			ck_fun		dimsT@	L
+getppid		getppid			ck_null		isT0	
+getpgrp		getpgrp			ck_fun		isT%	S?
+setpgrp		setpgrp			ck_fun		isT@	S? S?
+getpriority	getpriority		ck_fun		isT@	S S
+setpriority	setpriority		ck_fun		isT@	S S S
 
 # Time calls.
 
-time		time			ck_null		ist0	
+time		time			ck_null		isT0	
 tms		times			ck_null		0	
 localtime	localtime		ck_fun		t%	S?
 gmtime		gmtime			ck_fun		t%	S?
 alarm		alarm			ck_fun		istu%	S?
-sleep		sleep			ck_fun		ist%	S?
+sleep		sleep			ck_fun		isT%	S?
 
 # Shared memory.
 
@@ -678,3 +778,6 @@ syscall		syscall			ck_fun		imst@	S L
 # For multi-threading
 lock		lock			ck_rfun		s%	S
 threadsv	per-thread variable	ck_null		ds0
+
+# Control (contd.)
+setstate	set statement info	ck_null		s;