#!/usr/bin/perl -w require 5.003; # keep this compatible, an old perl is all we may have before # we build the new one BEGIN { # Get function prototypes require 'regen_lib.pl'; } # # See database of global and static function prototypes in embed.fnc # This is used to generate prototype headers under various configurations, # export symbols lists for different platforms, and macros to provide an # implicit interpreter context argument. # sub do_not_edit ($) { my $file = shift; my $years; if ($file eq 'embed.h') { $years = '1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004'; } elsif ($file eq 'embedvar.h') { $years = '1999, 2000, 2001, 2002, 2003, 2004'; } elsif ($file eq 'global.sym') { $years = '1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004'; } elsif ($file eq 'perlapi.c') { $years = '1999, 2000, 2001'; } elsif ($file eq 'perlapi.h') { $years = '1999, 2000, 2001, 2002, 2003, 2004'; } elsif ($file eq 'proto.h') { $years = '1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004'; } $years =~ s/1999,/1999,\n / if length $years > 40; my $warning = <$filename" or die "Can't open $filename: $!"; binmode F; $F = \*F; } print $F $leader if $leader; seek IN, 0, 0; # so we may restart while () { chomp; next if /^:/; while (s|\\$||) { $_ .= ; chomp; } my @args; if (/^\s*(#|$)/) { @args = $_; } else { @args = split /\s*\|\s*/, $_; } my @outs = &{$function}(@args); print $F @outs; # $function->(@args) is not 5.003 } print $F $trailer if $trailer; unless (ref $filename) { close $F or die "Error closing $filename: $!"; } } sub munge_c_files () { my $functions = {}; unless (@ARGV) { warn "\@ARGV empty, nothing to do\n"; return; } walk_table { if (@_ > 1) { $functions->{$_[2]} = \@_ if $_[@_-1] =~ /\.\.\./; } } '/dev/null', ''; local $^I = '.bak'; while (<>) { # if (/^#\s*include\s+"perl.h"/) { # my $file = uc $ARGV; # $file =~ s/\./_/g; # print "#define PERL_IN_$file\n"; # } # s{^(\w+)\s*\(} # { # my $f = $1; # my $repl = "$f("; # if (exists $functions->{$f}) { # my $flags = $functions->{$f}[0]; # $repl = "Perl_$repl" if $flags =~ /p/; # unless ($flags =~ /n/) { # $repl .= "pTHX"; # $repl .= "_ " if @{$functions->{$f}} > 3; # } # warn("$ARGV:$.:$repl\n"); # } # $repl; # }e; s{(\b(\w+)[ \t]*\([ \t]*(?!aTHX))} { my $repl = $1; my $f = $2; if (exists $functions->{$f}) { $repl .= "aTHX_ "; warn("$ARGV:$.:$`#$repl#$'"); } $repl; }eg; print; close ARGV if eof; # restart $. } exit; } #munge_c_files(); # generate proto.h my $wrote_protected = 0; sub write_protos { my $ret = ""; if (@_ == 1) { my $arg = shift; $ret .= "$arg\n"; } else { my ($flags,$retval,$func,@args) = @_; $ret .= '/* ' if $flags =~ /m/; if ($flags =~ /s/) { $retval = "STATIC $retval"; $func = "S_$func"; } else { $retval = "PERL_CALLCONV $retval"; if ($flags =~ /p/) { $func = "Perl_$func"; } } $ret .= "$retval\t$func("; unless ($flags =~ /n/) { $ret .= "pTHX"; $ret .= "_ " if @args; } if (@args) { $ret .= join ", ", @args; } else { $ret .= "void" if $flags =~ /n/; } $ret .= ")"; $ret .= " __attribute__((noreturn))" if $flags =~ /r/; if( $flags =~ /f/ ) { my $prefix = $flags =~ /n/ ? '' : 'pTHX_'; my $args = scalar @args; $ret .= sprintf "\n\t__attribute__format__(__printf__,%s%d,%s%d)", $prefix, $args - 1, $prefix, $args; } $ret .= ";"; $ret .= ' */' if $flags =~ /m/; $ret .= "\n"; } $ret; } # generates global.sym (API export list), and populates %global with global symbols sub write_global_sym { my $ret = ""; if (@_ > 1) { my ($flags,$retval,$func,@args) = @_; if ($flags =~ /[AX]/ && $flags !~ /[xm]/ || $flags =~ /b/) { # public API, so export $func = "Perl_$func" if $flags =~ /[pbX]/; $ret = "$func\n"; } } $ret; } walk_table(\&write_protos, "proto.h", undef); walk_table(\&write_global_sym, "global.sym", undef); # XXX others that may need adding # warnhook # hints # copline my @extvars = qw(sv_undef sv_yes sv_no na dowarn curcop compiling tainting tainted stack_base stack_sp sv_arenaroot no_modify curstash DBsub DBsingle DBassertion debstash rsfp stdingv defgv errgv rsfp_filters perldb diehook dirty perl_destruct_level ppaddr ); sub readsyms (\%$) { my ($syms, $file) = @_; local (*FILE, $_); open(FILE, "< $file") or die "embed.pl: Can't open $file: $!\n"; while () { s/[ \t]*#.*//; # Delete comments. if (/^\s*(\S+)\s*$/) { my $sym = $1; warn "duplicate symbol $sym while processing $file\n" if exists $$syms{$sym}; $$syms{$sym} = 1; } } close(FILE); } # Perl_pp_* and Perl_ck_* are in pp.sym readsyms my %ppsym, 'pp.sym'; sub readvars(\%$$@) { my ($syms, $file,$pre,$keep_pre) = @_; local (*FILE, $_); open(FILE, "< $file") or die "embed.pl: Can't open $file: $!\n"; while () { s/[ \t]*#.*//; # Delete comments. if (/PERLVARA?I?C?\($pre(\w+)/) { my $sym = $1; $sym = $pre . $sym if $keep_pre; warn "duplicate symbol $sym while processing $file\n" if exists $$syms{$sym}; $$syms{$sym} = $pre || 1; } } close(FILE); } my %intrp; my %thread; readvars %intrp, 'intrpvar.h','I'; readvars %thread, 'thrdvar.h','T'; readvars %globvar, 'perlvars.h','G'; my $sym; foreach $sym (sort keys %thread) { warn "$sym in intrpvar.h as well as thrdvar.h\n" if exists $intrp{$sym}; } sub undefine ($) { my ($sym) = @_; "#undef $sym\n"; } sub hide ($$) { my ($from, $to) = @_; my $t = int(length($from) / 8); "#define $from" . "\t" x ($t < 3 ? 3 - $t : 1) . "$to\n"; } sub bincompat_var ($$) { my ($pfx, $sym) = @_; my $arg = ($pfx eq 'G' ? 'NULL' : 'aTHX'); undefine("PL_$sym") . hide("PL_$sym", "(*Perl_${pfx}${sym}_ptr($arg))"); } sub multon ($$$) { my ($sym,$pre,$ptr) = @_; hide("PL_$sym", "($ptr$pre$sym)"); } sub multoff ($$) { my ($sym,$pre) = @_; return hide("PL_$pre$sym", "PL_$sym"); } safer_unlink 'embed.h'; open(EM, '> embed.h') or die "Can't create embed.h: $!\n"; binmode EM; print EM do_not_edit ("embed.h"), <<'END'; /* (Doing namespace management portably in C is really gross.) */ /* By defining PERL_NO_SHORT_NAMES (not done by default) the short forms * (like warn instead of Perl_warn) for the API are not defined. * Not defining the short forms is a good thing for cleaner embedding. */ #ifndef PERL_NO_SHORT_NAMES /* Hide global symbols */ #if !defined(PERL_IMPLICIT_CONTEXT) END walk_table { my $ret = ""; if (@_ == 1) { my $arg = shift; $ret .= "$arg\n" if $arg =~ /^#\s*(if|ifn?def|else|endif)\b/; } else { my ($flags,$retval,$func,@args) = @_; unless ($flags =~ /[om]/) { if ($flags =~ /s/) { $ret .= hide($func,"S_$func"); } elsif ($flags =~ /p/) { $ret .= hide($func,"Perl_$func"); } } if ($ret ne '' && $flags !~ /A/) { if ($flags =~ /E/) { $ret = "#if defined(PERL_CORE) || defined(PERL_EXT)\n$ret#endif\n"; } else { $ret = "#ifdef PERL_CORE\n$ret#endif\n"; } } } $ret; } \*EM, ""; for $sym (sort keys %ppsym) { $sym =~ s/^Perl_//; print EM hide($sym, "Perl_$sym"); } print EM <<'END'; #else /* PERL_IMPLICIT_CONTEXT */ END my @az = ('a'..'z'); walk_table { my $ret = ""; if (@_ == 1) { my $arg = shift; $ret .= "$arg\n" if $arg =~ /^#\s*(if|ifn?def|else|endif)\b/; } else { my ($flags,$retval,$func,@args) = @_; unless ($flags =~ /[om]/) { my $args = scalar @args; if ($args and $args[$args-1] =~ /\.\.\./) { # we're out of luck for varargs functions under CPP } elsif ($flags =~ /n/) { if ($flags =~ /s/) { $ret .= hide($func,"S_$func"); } elsif ($flags =~ /p/) { $ret .= hide($func,"Perl_$func"); } } else { my $alist = join(",", @az[0..$args-1]); $ret = "#define $func($alist)"; my $t = int(length($ret) / 8); $ret .= "\t" x ($t < 4 ? 4 - $t : 1); if ($flags =~ /s/) { $ret .= "S_$func(aTHX"; } elsif ($flags =~ /p/) { $ret .= "Perl_$func(aTHX"; } $ret .= "_ " if $alist; $ret .= $alist . ")\n"; } } unless ($flags =~ /A/) { if ($flags =~ /E/) { $ret = "#if defined(PERL_CORE) || defined(PERL_EXT)\n$ret#endif\n"; } else { $ret = "#ifdef PERL_CORE\n$ret#endif\n"; } } } $ret; } \*EM, ""; for $sym (sort keys %ppsym) { $sym =~ s/^Perl_//; if ($sym =~ /^ck_/) { print EM hide("$sym(a)", "Perl_$sym(aTHX_ a)"); } elsif ($sym =~ /^pp_/) { print EM hide("$sym()", "Perl_$sym(aTHX)"); } else { warn "Illegal symbol '$sym' in pp.sym"; } } print EM <<'END'; #endif /* PERL_IMPLICIT_CONTEXT */ #endif /* #ifndef PERL_NO_SHORT_NAMES */ END print EM <<'END'; /* Compatibility stubs. Compile extensions with -DPERL_NOCOMPAT to disable them. */ #if !defined(PERL_CORE) # define sv_setptrobj(rv,ptr,name) sv_setref_iv(rv,name,PTR2IV(ptr)) # define sv_setptrref(rv,ptr) sv_setref_iv(rv,Nullch,PTR2IV(ptr)) #endif #if !defined(PERL_CORE) && !defined(PERL_NOCOMPAT) /* Compatibility for various misnamed functions. All functions in the API that begin with "perl_" (not "Perl_") take an explicit interpreter context pointer. The following are not like that, but since they had a "perl_" prefix in previous versions, we provide compatibility macros. */ # define perl_atexit(a,b) call_atexit(a,b) # define perl_call_argv(a,b,c) call_argv(a,b,c) # define perl_call_pv(a,b) call_pv(a,b) # define perl_call_method(a,b) call_method(a,b) # define perl_call_sv(a,b) call_sv(a,b) # define perl_eval_sv(a,b) eval_sv(a,b) # define perl_eval_pv(a,b) eval_pv(a,b) # define perl_require_pv(a) require_pv(a) # define perl_get_sv(a,b) get_sv(a,b) # define perl_get_av(a,b) get_av(a,b) # define perl_get_hv(a,b) get_hv(a,b) # define perl_get_cv(a,b) get_cv(a,b) # define perl_init_i18nl10n(a) init_i18nl10n(a) # define perl_init_i18nl14n(a) init_i18nl14n(a) # define perl_new_ctype(a) new_ctype(a) # define perl_new_collate(a) new_collate(a) # define perl_new_numeric(a) new_numeric(a) /* varargs functions can't be handled with CPP macros. :-( This provides a set of compatibility functions that don't take an extra argument but grab the context pointer using the macro dTHX. */ #if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_NO_SHORT_NAMES) # define croak Perl_croak_nocontext # define deb Perl_deb_nocontext # define die Perl_die_nocontext # define form Perl_form_nocontext # define load_module Perl_load_module_nocontext # define mess Perl_mess_nocontext # define newSVpvf Perl_newSVpvf_nocontext # define sv_catpvf Perl_sv_catpvf_nocontext # define sv_setpvf Perl_sv_setpvf_nocontext # define warn Perl_warn_nocontext # define warner Perl_warner_nocontext # define sv_catpvf_mg Perl_sv_catpvf_mg_nocontext # define sv_setpvf_mg Perl_sv_setpvf_mg_nocontext #endif #endif /* !defined(PERL_CORE) && !defined(PERL_NOCOMPAT) */ #if !defined(PERL_IMPLICIT_CONTEXT) /* undefined symbols, point them back at the usual ones */ # define Perl_croak_nocontext Perl_croak # define Perl_die_nocontext Perl_die # define Perl_deb_nocontext Perl_deb # define Perl_form_nocontext Perl_form # define Perl_load_module_nocontext Perl_load_module # define Perl_mess_nocontext Perl_mess # define Perl_newSVpvf_nocontext Perl_newSVpvf # define Perl_sv_catpvf_nocontext Perl_sv_catpvf # define Perl_sv_setpvf_nocontext Perl_sv_setpvf # define Perl_warn_nocontext Perl_warn # define Perl_warner_nocontext Perl_warner # define Perl_sv_catpvf_mg_nocontext Perl_sv_catpvf_mg # define Perl_sv_setpvf_mg_nocontext Perl_sv_setpvf_mg #endif END close(EM) or die "Error closing EM: $!"; safer_unlink 'embedvar.h'; open(EM, '> embedvar.h') or die "Can't create embedvar.h: $!\n"; binmode EM; print EM do_not_edit ("embedvar.h"), <<'END'; /* (Doing namespace management portably in C is really gross.) */ /* The following combinations of MULTIPLICITY and PERL_IMPLICIT_CONTEXT are supported: 1) none 2) MULTIPLICITY # supported for compatibility 3) MULTIPLICITY && PERL_IMPLICIT_CONTEXT All other combinations of these flags are errors. only #3 is supported directly, while #2 is a special case of #3 (supported by redefining vTHX appropriately). */ #if defined(MULTIPLICITY) /* cases 2 and 3 above */ # if defined(PERL_IMPLICIT_CONTEXT) # define vTHX aTHX # else # define vTHX PERL_GET_INTERP # endif END for $sym (sort keys %thread) { print EM multon($sym,'T','vTHX->'); } print EM <<'END'; /* cases 2 and 3 above */ END for $sym (sort keys %intrp) { print EM multon($sym,'I','vTHX->'); } print EM <<'END'; #else /* !MULTIPLICITY */ /* case 1 above */ END for $sym (sort keys %intrp) { print EM multoff($sym,'I'); } print EM <<'END'; END for $sym (sort keys %thread) { print EM multoff($sym,'T'); } print EM <<'END'; #endif /* MULTIPLICITY */ #if defined(PERL_GLOBAL_STRUCT) END for $sym (sort keys %globvar) { print EM multon($sym,'G','PL_Vars.'); } print EM <<'END'; #else /* !PERL_GLOBAL_STRUCT */ END for $sym (sort keys %globvar) { print EM multoff($sym,'G'); } print EM <<'END'; #endif /* PERL_GLOBAL_STRUCT */ #ifdef PERL_POLLUTE /* disabled by default in 5.6.0 */ END for $sym (sort @extvars) { print EM hide($sym,"PL_$sym"); } print EM <<'END'; #endif /* PERL_POLLUTE */ END close(EM) or die "Error closing EM: $!"; safer_unlink 'perlapi.h'; safer_unlink 'perlapi.c'; open(CAPI, '> perlapi.c') or die "Can't create perlapi.c: $!\n"; binmode CAPI; open(CAPIH, '> perlapi.h') or die "Can't create perlapi.h: $!\n"; binmode CAPIH; print CAPIH do_not_edit ("perlapi.h"), <<'EOT'; /* declare accessor functions for Perl variables */ #ifndef __perlapi_h__ #define __perlapi_h__ #if defined (MULTIPLICITY) START_EXTERN_C #undef PERLVAR #undef PERLVARA #undef PERLVARI #undef PERLVARIC #define PERLVAR(v,t) EXTERN_C t* Perl_##v##_ptr(pTHX); #define PERLVARA(v,n,t) typedef t PL_##v##_t[n]; \ EXTERN_C PL_##v##_t* Perl_##v##_ptr(pTHX); #define PERLVARI(v,t,i) PERLVAR(v,t) #define PERLVARIC(v,t,i) PERLVAR(v, const t) #include "thrdvar.h" #include "intrpvar.h" #include "perlvars.h" #undef PERLVAR #undef PERLVARA #undef PERLVARI #undef PERLVARIC END_EXTERN_C #if defined(PERL_CORE) /* accessor functions for Perl variables (provide binary compatibility) */ /* these need to be mentioned here, or most linkers won't put them in the perl executable */ #ifndef PERL_NO_FORCE_LINK START_EXTERN_C #ifndef DOINIT EXT void *PL_force_link_funcs[]; #else EXT void *PL_force_link_funcs[] = { #undef PERLVAR #undef PERLVARA #undef PERLVARI #undef PERLVARIC #define PERLVAR(v,t) (void*)Perl_##v##_ptr, #define PERLVARA(v,n,t) PERLVAR(v,t) #define PERLVARI(v,t,i) PERLVAR(v,t) #define PERLVARIC(v,t,i) PERLVAR(v,t) #include "thrdvar.h" #include "intrpvar.h" #include "perlvars.h" #undef PERLVAR #undef PERLVARA #undef PERLVARI #undef PERLVARIC }; #endif /* DOINIT */ END_EXTERN_C #endif /* PERL_NO_FORCE_LINK */ #else /* !PERL_CORE */ EOT foreach $sym (sort keys %intrp) { print CAPIH bincompat_var('I',$sym); } foreach $sym (sort keys %thread) { print CAPIH bincompat_var('T',$sym); } foreach $sym (sort keys %globvar) { print CAPIH bincompat_var('G',$sym); } print CAPIH <<'EOT'; #endif /* !PERL_CORE */ #endif /* MULTIPLICITY */ #endif /* __perlapi_h__ */ EOT close CAPIH or die "Error closing CAPIH: $!"; print CAPI do_not_edit ("perlapi.c"), <<'EOT'; #include "EXTERN.h" #include "perl.h" #include "perlapi.h" #if defined (MULTIPLICITY) /* accessor functions for Perl variables (provides binary compatibility) */ START_EXTERN_C #undef PERLVAR #undef PERLVARA #undef PERLVARI #undef PERLVARIC #define PERLVAR(v,t) t* Perl_##v##_ptr(pTHX) \ { return &(aTHX->v); } #define PERLVARA(v,n,t) PL_##v##_t* Perl_##v##_ptr(pTHX) \ { return &(aTHX->v); } #define PERLVARI(v,t,i) PERLVAR(v,t) #define PERLVARIC(v,t,i) PERLVAR(v, const t) #include "thrdvar.h" #include "intrpvar.h" #undef PERLVAR #undef PERLVARA #define PERLVAR(v,t) t* Perl_##v##_ptr(pTHX) \ { return &(PL_##v); } #define PERLVARA(v,n,t) PL_##v##_t* Perl_##v##_ptr(pTHX) \ { return &(PL_##v); } #undef PERLVARIC #define PERLVARIC(v,t,i) const t* Perl_##v##_ptr(pTHX) \ { return (const t *)&(PL_##v); } #include "perlvars.h" #undef PERLVAR #undef PERLVARA #undef PERLVARI #undef PERLVARIC END_EXTERN_C #endif /* MULTIPLICITY */ EOT close(CAPI) or die "Error closing CAPI: $!"; # functions that take va_list* for implementing vararg functions # NOTE: makedef.pl must be updated if you add symbols to %vfuncs # XXX %vfuncs currently unused my %vfuncs = qw( Perl_croak Perl_vcroak Perl_warn Perl_vwarn Perl_warner Perl_vwarner Perl_die Perl_vdie Perl_form Perl_vform Perl_load_module Perl_vload_module Perl_mess Perl_vmess Perl_deb Perl_vdeb Perl_newSVpvf Perl_vnewSVpvf Perl_sv_setpvf Perl_sv_vsetpvf Perl_sv_setpvf_mg Perl_sv_vsetpvf_mg Perl_sv_catpvf Perl_sv_vcatpvf Perl_sv_catpvf_mg Perl_sv_vcatpvf_mg Perl_dump_indent Perl_dump_vindent Perl_default_protect Perl_vdefault_protect );