X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/c2dedb93787513d66c49e180154d0200519dbf74..81fc59efbb1a08ca114afd7063c6d7630d321552:/opcode.pl diff --git a/opcode.pl b/opcode.pl index 9a022ca..01db025 100755 --- a/opcode.pl +++ b/opcode.pl @@ -1,4 +1,19 @@ #!/usr/bin/perl -w +# +# Regenerate (overwriting only if changed): +# +# opcode.h +# opnames.h +# pp_proto.h +# pp.sym +# +# from information stored in the DATA section of this file, plus the +# values hardcoded into this script in @raw_alias. +# +# Accepts the standard regen_lib -q and -v args. +# +# This script is normally invoked from regen.pl. + use strict; BEGIN { @@ -8,16 +23,14 @@ BEGIN { my $opcode_new = 'opcode.h-new'; my $opname_new = 'opnames.h-new'; -open(OC, ">$opcode_new") || die "Can't create $opcode_new: $!\n"; -binmode OC; -open(ON, ">$opname_new") || die "Can't create $opname_new: $!\n"; -binmode ON; -select OC; +my $oc = safer_open($opcode_new); +my $on = safer_open($opname_new); +select $oc; # Read data. my %seen; -my (@ops, %desc, %check, %ckname, %flags, %args); +my (@ops, %desc, %check, %ckname, %flags, %args, %opnum); while () { chop; @@ -32,6 +45,7 @@ while () { $seen{$key} = qq[opcode "$key"]; push(@ops, $key); + $opnum{$key} = $#ops; $desc{$key} = $desc; $check{$key} = $check; $ckname{$check}++; @@ -127,13 +141,13 @@ PERL_PPDEF(Perl_unimplemented_op) END -print ON <<"END"; +print $on <<"END"; /* -*- buffer-read-only: t -*- * * opnames.h * * Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, - * 2007 by Larry Wall and others + * 2007, 2008 by Larry Wall and others * * You may distribute under the terms of either the GNU General Public * License or the Artistic License, as specified in the README file. @@ -149,13 +163,14 @@ END my $i = 0; for (@ops) { - print ON "\t", &tab(3,"OP_\U$_,"), "/* ", $i++, " */\n"; + # print $on "\t", &tab(3,"OP_\U$_,"), "/* ", $i++, " */\n"; + print $on "\t", &tab(3,"OP_\U$_"), " = ", $i++, ",\n"; } -print ON "\t", &tab(3,"OP_max"), "\n"; -print ON "} opcode;\n"; -print ON "\n#define MAXO ", scalar @ops, "\n"; -print ON "#define OP_phoney_INPUT_ONLY -1\n"; -print ON "#define OP_phoney_OUTPUT_ONLY -2\n\n"; +print $on "\t", &tab(3,"OP_max"), "\n"; +print $on "} opcode;\n"; +print $on "\n#define MAXO ", scalar @ops, "\n"; +print $on "#define OP_phoney_INPUT_ONLY -1\n"; +print $on "#define OP_phoney_OUTPUT_ONLY -2\n\n"; # Emit op names and descriptions. @@ -342,6 +357,7 @@ my %opflags = ( my %OP_IS_SOCKET; my %OP_IS_FILETEST; +my %OP_IS_FT_ACCESS; my $OCSHIFT = 9; my $OASHIFT = 13; @@ -350,19 +366,21 @@ for my $op (@ops) { my $flags = $flags{$op}; for my $flag (keys %opflags) { if ($flags =~ s/$flag//) { - die "Flag collision for '$op' ($flags{$op}, $flag)" + die "Flag collision for '$op' ($flags{$op}, $flag)\n" if $argsum & $opflags{$flag}; $argsum |= $opflags{$flag}; } } - die qq[Opcode '$op' has no class indicator ($flags{$op} => $flags)] + die qq[Opcode '$op' has no class indicator ($flags{$op} => $flags)\n] unless exists $opclass{$flags}; $argsum |= $opclass{$flags} << $OCSHIFT; my $argshift = $OASHIFT; for my $arg (split(' ',$args{$op})) { if ($arg =~ /^F/) { - $OP_IS_SOCKET{$op} = 1 if $arg =~ s/s//; - $OP_IS_FILETEST{$op} = 1 if $arg =~ s/-//; + # record opnums of these opnames + $OP_IS_SOCKET{$op} = $opnum{$op} if $arg =~ s/s//; + $OP_IS_FILETEST{$op} = $opnum{$op} if $arg =~ s/-//; + $OP_IS_FT_ACCESS{$op} = $opnum{$op} if $arg =~ s/\+//; } my $argnum = ($arg =~ s/\?//) ? 8 : 0; die "op = $op, arg = $arg\n" @@ -388,41 +406,66 @@ END_EXTERN_C END -if (keys %OP_IS_SOCKET) { - print ON "\n#define OP_IS_SOCKET(op) \\\n\t("; - print ON join(" || \\\n\t ", - map { "(op) == OP_" . uc() } sort keys %OP_IS_SOCKET); - print ON ")\n\n"; +# Emit OP_IS_* macros + +print $on < table. opcode.pl verifies the range contiguity. */ + +EO_OP_IS_COMMENT + +gen_op_is_macro( \%OP_IS_SOCKET, 'OP_IS_SOCKET'); +gen_op_is_macro( \%OP_IS_FILETEST, 'OP_IS_FILETEST'); +gen_op_is_macro( \%OP_IS_FT_ACCESS, 'OP_IS_FILETEST_ACCESS'); + +sub gen_op_is_macro { + my ($op_is, $macname) = @_; + if (keys %$op_is) { + + # get opnames whose numbers are lowest and highest + my ($first, @rest) = sort { + $op_is->{$a} <=> $op_is->{$b} + } keys %$op_is; + + my $last = pop @rest; # @rest slurped, get its last + die "Invalid range of ops: $first .. $last\n" unless $last; + + print $on "#define $macname(op) \\\n\t("; + + # verify that op-ct matches 1st..last range (and fencepost) + # (we know there are no dups) + if ( $op_is->{$last} - $op_is->{$first} == scalar @rest + 1) { + + # contiguous ops -> optimized version + print $on "(op) >= OP_" . uc($first) . " && (op) <= OP_" . uc($last); + print $on ")\n\n"; + } + else { + print $on join(" || \\\n\t ", + map { "(op) == OP_" . uc() } sort keys %$op_is); + print $on ")\n\n"; + } + } } -if (keys %OP_IS_FILETEST) { - print ON "\n#define OP_IS_FILETEST(op) \\\n\t("; - print ON join(" || \\\n\t ", - map { "(op) == OP_" . uc() } sort keys %OP_IS_FILETEST); - print ON ")\n\n"; -} +print $oc "/* ex: set ro: */\n"; +print $on "/* ex: set ro: */\n"; -print OC "/* ex: set ro: */\n"; -print ON "/* ex: set ro: */\n"; +safer_close($oc); +safer_close($on); -close OC or die "Error closing opcode.h: $!"; -close ON or die "Error closing opnames.h: $!"; - -foreach ('opcode.h', 'opnames.h') { - safer_rename_silent $_, "$_-old"; -} -safer_rename $opcode_new, 'opcode.h'; -safer_rename $opname_new, 'opnames.h'; +rename_if_different $opcode_new, 'opcode.h'; +rename_if_different $opname_new, 'opnames.h'; my $pp_proto_new = 'pp_proto.h-new'; my $pp_sym_new = 'pp.sym-new'; -open PP, ">$pp_proto_new" or die "Error creating $pp_proto_new: $!"; -binmode PP; -open PPSYM, ">$pp_sym_new" or die "Error creating $pp_sym_new: $!"; -binmode PPSYM; +my $pp = safer_open($pp_proto_new); +my $ppsym = safer_open($pp_sym_new); -print PP <<"END"; +print $pp <<"END"; /* -*- buffer-read-only: t -*- !!!!!!! DO NOT EDIT THIS FILE !!!!!!! This file is built by opcode.pl from its data. Any changes made here @@ -431,7 +474,7 @@ print PP <<"END"; END -print PPSYM <<"END"; +print $ppsym <<"END"; # -*- buffer-read-only: t -*- # # !!!!!!! DO NOT EDIT THIS FILE !!!!!!! @@ -443,30 +486,27 @@ END for (sort keys %ckname) { - print PP "PERL_CKDEF(Perl_$_)\n"; - print PPSYM "Perl_$_\n"; + print $pp "PERL_CKDEF(Perl_$_)\n"; + print $ppsym "Perl_$_\n"; #OP *\t", &tab(3,$_),"(OP* o);\n"; } -print PP "\n\n"; +print $pp "\n\n"; for (@ops) { next if /^i_(pre|post)(inc|dec)$/; next if /^custom$/; - print PP "PERL_PPDEF(Perl_pp_$_)\n"; - print PPSYM "Perl_pp_$_\n"; + print $pp "PERL_PPDEF(Perl_pp_$_)\n"; + print $ppsym "Perl_pp_$_\n"; } -print PP "\n/* ex: set ro: */\n"; -print PPSYM "\n# ex: set ro:\n"; +print $pp "\n/* ex: set ro: */\n"; +print $ppsym "\n# ex: set ro:\n"; -close PP or die "Error closing pp_proto.h: $!"; -close PPSYM or die "Error closing pp.sym: $!"; +safer_close($pp); +safer_close($ppsym); -foreach ('pp_proto.h', 'pp.sym') { - safer_rename_silent $_, "$_-old"; -} -safer_rename $pp_proto_new, 'pp_proto.h'; -safer_rename $pp_sym_new, 'pp.sym'; +rename_if_different $pp_proto_new, 'pp_proto.h'; +rename_if_different $pp_sym_new, 'pp.sym'; END { foreach ('opcode.h', 'opnames.h', 'pp_proto.h', 'pp.sym') { @@ -571,7 +611,9 @@ __END__ # Values for the operands are: # scalar - S list - L array - A # hash - H sub (CV) - C file - F -# socket - Fs filetest - F- reference - R +# socket - Fs filetest - F- filetest_access - F-+ + +# reference - R # "?" denotes an optional operand. # Nothing. @@ -729,14 +771,14 @@ abs abs ck_fun fsTu% S? # String stuff. -length length ck_lengthconst isTu% S? +length length ck_fun ifsTu% S? substr substr ck_substr st@ S S S? S? vec vec ck_fun ist@ S S S index index ck_index isT@ S S S? rindex rindex ck_index isT@ S S S? -sprintf sprintf ck_fun mst@ S L +sprintf sprintf ck_fun fmst@ S L formline formline ck_fun ms@ S L ord ord ck_fun ifsTu% S? chr chr ck_fun fsTu% S? @@ -768,6 +810,7 @@ exists exists ck_exists is% S rv2hv hash dereference ck_rvconst dt1 helem hash element ck_null s2 H S hslice hash slice ck_null m@ H L +boolkeys boolkeys ck_fun % H # Explosives and implosives. @@ -841,7 +884,6 @@ redo redo ck_null ds} dump dump ck_null ds} goto goto ck_null ds} exit exit ck_exit ds% S? -setstate set statement info ck_null s; method_named method with known name ck_null d$ entergiven given() ck_null d| @@ -884,9 +926,6 @@ 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? -send send ck_fun imst@ Fs S S S? -recv recv ck_fun imst@ Fs R S S - eof eof ck_eof is% F? tell tell ck_fun st% F? seek seek ck_fun s@ F S S @@ -897,7 +936,10 @@ fcntl fcntl ck_fun st@ F S S ioctl ioctl ck_fun st@ F S S flock flock ck_fun isT@ F S -# Sockets. +# Sockets. OP_IS_SOCKET wants them consecutive (so moved 1st 2) + +send send ck_fun imst@ Fs S S S? +recv recv ck_fun imst@ Fs R S S socket socket ck_fun is@ Fs S S S sockpair socketpair ck_fun is@ Fs Fs S S S @@ -914,16 +956,16 @@ ssockopt setsockopt ck_fun is@ Fs S S S getsockname getsockname ck_fun is% Fs getpeername getpeername ck_fun is% Fs -# Stat calls. +# Stat calls. OP_IS_FILETEST wants them consecutive. lstat lstat ck_ftst u- F stat stat ck_ftst u- F -ftrread -R ck_ftst isu- F- -ftrwrite -W ck_ftst isu- F- -ftrexec -X ck_ftst isu- F- -fteread -r ck_ftst isu- F- -ftewrite -w ck_ftst isu- F- -fteexec -x ck_ftst isu- F- +ftrread -R ck_ftst isu- F-+ +ftrwrite -W ck_ftst isu- F-+ +ftrexec -X ck_ftst isu- F-+ +fteread -r ck_ftst isu- F-+ +ftewrite -w ck_ftst isu- F-+ +fteexec -x ck_ftst isu- F-+ ftis -e ck_ftst isu- F- ftsize -s ck_ftst istu- F- ftmtime -M ck_ftst stu- F- @@ -1022,10 +1064,11 @@ semctl semctl ck_fun imst@ S S S S require require ck_require du% S? dofile do "file" ck_fun d1 S +hintseval eval hints ck_svconst s$ entereval eval "string" ck_eval d% S leaveeval eval "string" exit ck_null 1 S #evalonce eval constant string ck_null d1 S -entertry eval {block} ck_null | +entertry eval {block} ck_eval d% leavetry eval {block} exit ck_null @ # Get system info.