agent/src/share/classes/sun/jvm/hotspot/debugger/DebuggerBase.java

rev 3688 : 7054512: Compress class pointers after perm gen removal
Summary: support of compress class pointers in the compilers.
Reviewed-by:

*** 56,65 ****
--- 56,69 ----
    // heap data.
    protected long oopSize;
    protected long heapOopSize;
    protected long narrowOopBase;  // heap base for compressed oops.
    protected int  narrowOopShift; // shift to decode compressed oops.
+   // class metadata space
+   protected long klassPtrSize;
+   protected long narrowKlassBase;  // heap base for compressed klass ptrs.
+   protected int  narrowKlassShift; // shift to decode compressed klass ptrs.
    // Should be initialized if desired by calling initCache()
    private PageCache cache;
  
    // State for faster accessors that don't allocate memory on each read
    private boolean useFastAccessors;
*** 157,170 ****
         (jshortSize   == 2));
  
      javaPrimitiveTypesConfigured = true;
    }
  
!   public void putHeapConst(long heapOopSize, long narrowOopBase, int narrowOopShift) {
      this.heapOopSize = heapOopSize;
      this.narrowOopBase = narrowOopBase;
      this.narrowOopShift = narrowOopShift;
    }
  
    /** May be called by subclasses if desired to initialize the page
        cache but may not be overridden */
    protected final void initCache(long pageSize, long maxNumPages) {
--- 161,178 ----
         (jshortSize   == 2));
  
      javaPrimitiveTypesConfigured = true;
    }
  
!   public void putHeapConst(long heapOopSize, long klassPtrSize, long narrowOopBase, int narrowOopShift, 
!                            long narrowKlassBase, int narrowKlassShift) {
      this.heapOopSize = heapOopSize;
+     this.klassPtrSize = klassPtrSize;
      this.narrowOopBase = narrowOopBase;
      this.narrowOopShift = narrowOopShift;
+     this.narrowKlassBase = narrowKlassBase;
+     this.narrowKlassShift = narrowKlassShift;
    }
  
    /** May be called by subclasses if desired to initialize the page
        cache but may not be overridden */
    protected final void initCache(long pageSize, long maxNumPages) {
*** 462,471 ****
--- 470,488 ----
        value = (long)(narrowOopBase + (long)(value << narrowOopShift));
      }
      return value;
    }
  
+   protected long readCompKlassAddressValue(long address)
+     throws UnmappedAddressException, UnalignedAddressException {
+     long value = readCInteger(address, getKlassPtrSize(), true);
+     if (value != 0) {
+       value = (long)(narrowKlassBase + (long)(value << narrowKlassShift));
+     }
+     return value;
+   }
+ 
    protected void writeAddressValue(long address, long value)
      throws UnmappedAddressException, UnalignedAddressException {
      writeCInteger(address, machDesc.getAddressSize(), value);
    }
  
*** 549,554 ****
--- 566,582 ----
      return narrowOopBase;
    }
    public int getNarrowOopShift() {
      return narrowOopShift;
    }
+ 
+   public long getKlassPtrSize() {
+     return klassPtrSize;
+   }
+ 
+   public long getNarrowKlassBase() {
+     return narrowKlassBase;
+   }
+   public int getNarrowKlassShift() {
+     return narrowKlassShift;
+   }
  }