Estimate a (close) upper bound on the size of black-marked objects on each page.

src/assembler.cc

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // All Rights Reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 // - Redistributions of source code must retain the above copyright notice,
 // this list of conditions and the following disclaimer.
 //
@@ skipping 80 matching lines @@
 
 // -----------------------------------------------------------------------------
 // Implementation of Label
 
 int Label::pos() const {
   if (pos_ < 0) return -pos_ - 1;
   if (pos_ > 0) return  pos_ - 1;
   UNREACHABLE();
   return 0;
 }
 

[Erik Corry, 2011/06/24 09:46:17]

Inadvertent edit?

[Lasse Reichstein, 2011/06/24 11:09:08]

fixed.

-
 // -----------------------------------------------------------------------------
 // Implementation of RelocInfoWriter and RelocIterator
 //
 // Relocation information is written backwards in memory, from high addresses
 // towards low addresses, byte by byte.  Therefore, in the encodings listed
 // below, the first byte listed it at the highest address, and successive
 // bytes in the record are at progressively lower addresses.
 //
 // Encoding
 //
@@ skipping 1108 matching lines @@
     assembler_->RecordRelocInfo(RelocInfo::POSITION, state_.current_position);
     state_.written_position = state_.current_position;
     written = true;
   }
 
   // Return whether something was written.
   return written;
 }
 
 } }  // namespace v8::internal