From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001
From: upstream source tree <ports@midipix.org>
Date: Sun, 15 Mar 2015 20:14:05 -0400
Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified
 gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream
 tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.
---
 libjava/gnu/gcj/tools/gc_analyze/BytePtr.java | 115 ++++++++++++++++++++++++++
 1 file changed, 115 insertions(+)
 create mode 100644 libjava/gnu/gcj/tools/gc_analyze/BytePtr.java

(limited to 'libjava/gnu/gcj/tools/gc_analyze/BytePtr.java')

diff --git a/libjava/gnu/gcj/tools/gc_analyze/BytePtr.java b/libjava/gnu/gcj/tools/gc_analyze/BytePtr.java
new file mode 100644
index 000000000..4afceeeec
--- /dev/null
+++ b/libjava/gnu/gcj/tools/gc_analyze/BytePtr.java
@@ -0,0 +1,115 @@
+/* BytePtr.java -- Container for bytes from a memory image.
+   Copyright (C) 2007  Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+package gnu.gcj.tools.gc_analyze;
+
+import java.nio.ByteBuffer;
+
+public class BytePtr
+{
+  ByteBuffer content;
+  int wordSize;
+
+  BytePtr(ByteBuffer b, int ws)
+  {
+    content = b;
+    wordSize = ws;
+  }
+  
+  public int getsize()
+  {
+    return content.limit();
+  }
+
+  public int getByte(int offset)
+  {
+    return content.get(offset);
+  }
+
+  public int getInt(int n)
+  {
+    return content.getInt(n * 4);
+  }
+
+  public int getShort(int n)
+  {
+    return content.getShort(n * 2);
+  }
+  
+  public long getWord(int n)
+  {
+    if (4 == wordSize)
+      return 0xffffffffL & content.getInt(n * 4);
+    else
+      return content.getLong(n * 8);
+  }
+  
+  public int intsPerWord()
+  {
+    return (4 == wordSize) ? 1 : 2;
+  }
+
+  public BytePtr getRegion(int offset, int size)
+  {
+    int oldLimit = content.limit();
+    content.position(offset);
+    content.limit(offset + size);
+    ByteBuffer n = content.slice();
+    content.position(0);
+    content.limit(oldLimit);
+    
+    return new BytePtr(n, wordSize);
+  }
+
+  public void setInt(int a, int n)
+  {
+    content.putInt(a * 4, n);
+  }
+
+  public void dump()
+  {
+    // 38 5a f4 2a 50 bd 04 10 10 00 00 00 0e 00 00 00   8Z.*P...........
+    int i;
+    StringBuilder b = new StringBuilder(67);
+    for (i = 0; i < 66; i++)
+      b.append(' ');
+    b.append('\n');
+
+    i = 0;
+    do
+      {
+        for (int j = 0; j < 16; j++)
+          {
+            int k = i + j;
+
+            if (k < content.limit())
+              {
+                int v = 0xff & getByte(k);
+                // hex
+                int v1 = v/16;
+                b.setCharAt(j * 3 + 0,
+                            (char)(v1 >= 10 ? 'a' - 10 + v1 : v1 + '0'));
+                v1 = v % 16;
+                b.setCharAt(j * 3 + 1,
+                            (char)(v1 >= 10 ? 'a' - 10 + v1 : v1 + '0'));
+                // ascii
+                b.setCharAt(j + 50, (char)((v >= 32 && v <= 127) ? v: '.'));
+              }
+            else
+              {
+                b.setCharAt(j * 3 + 0, ' ');
+                b.setCharAt(j * 3 + 1, ' ');
+                b.setCharAt(j + 50, ' ');
+              }
+          }
+        i += 16;
+        System.out.print(b);
+      } while (i < content.limit());
+  }
+}
-- 
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