If PERL_TRACK_MEMPOOL and PERL_POISON are in use, then scribble all

[p5sagit/p5-mst-13.2.git] / embed.pl

diff --git a/embed.pl b/embed.pl
index 27815ae..1e51aaa 100755 (executable)
--- a/embed.pl
+++ b/embed.pl
@@ -124,26 +124,6 @@ sub munge_c_files () {
     } '/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;
@@ -194,7 +174,22 @@ sub write_protos {
            my $n;
            for my $arg ( @args ) {
                ++$n;
+               if ( $arg =~ /\*/ && $arg !~ /\b(NN|NULLOK)\b/ ) {
+                   warn "$func: $arg needs NN or NULLOK\n";
+                   our $unflagged_pointers;
+                   ++$unflagged_pointers;
+               }
                push( @nonnull, $n ) if ( $arg =~ s/\s*\bNN\b\s+// );
+               $arg =~ s/\s*\bNULLOK\b\s+//; # strip NULLOK with no effect
+
+               # Make sure each arg has at least a type and a var name.
+               # An arg of "int" is valid C, but want it to be "int foo".
+               my $temp_arg = $arg;
+               $temp_arg =~ s/\*//g;
+               $temp_arg =~ s/\s*\bstruct\b\s*/ /g;
+               if ( ($temp_arg ne "...") && ($temp_arg !~ /\w+\s+\w+/) ) {
+                   warn "$func: $arg doesn't have a name\n";
+               }
            }
            $ret .= join ", ", @args;
        }
@@ -237,21 +232,30 @@ sub write_protos {
     $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;
+# generates global.sym (API export list)
+{
+  my %seen;
+  sub write_global_sym {
+      my $ret = "";
+      if (@_ > 1) {
+         my ($flags,$retval,$func,@args) = @_;
+         # If a function is defined twice, for example before and after an
+         # #else, only process the flags on the first instance for global.sym
+         return $ret if $seen{$func}++;
+         if ($flags =~ /[AX]/ && $flags !~ /[xm]/
+             || $flags =~ /b/) { # public API, so export
+             $func = "Perl_$func" if $flags =~ /[pbX]/;
+             $ret = "$func\n";
+         }
+      }
+      $ret;
+  }
 }
 
+
+our $unflagged_pointers;
 walk_table(\&write_protos,     "proto.h", undef, "/* ex: set ro: */\n");
+warn "$unflagged_pointers pointer arguments to clean up\n" if $unflagged_pointers;
 walk_table(\&write_global_sym, "global.sym", undef, "# ex: set ro:\n");
 
 # XXX others that may need adding
@@ -953,3 +957,5 @@ my %vfuncs = qw(
     Perl_dump_indent           Perl_dump_vindent
     Perl_default_protect       Perl_vdefault_protect
 );
+
+# ex: set ts=8 sts=4 sw=4 noet: