Bug 1125 - Make ELF Reader 'jogamp.common.os.elf' Stateless

ELF Reader 'jogamp.common.os.elf' currently uses
Platform's pre-determined OS_TYPE and CPUType.

It also uses the host platforms MachineDescription,
hence can not read ELF files from other machines.

This also forbids Platform to determine CPUType etc
w/o having a valid 'os.arch' property.

+++

ElfHeader should be split in
  - ElfHeaderPart1 (CPUType independent)
  - ElfHeaderPart2 (CPUType dependent)

Fix shall make the ELF Reader self containing
by only using ELF CPUType data, etc.

This requires customization of struct parsing,
where MachineDescription.Static index shall be
  - defined in ElfHeaderPart1 using e_Ident's CPUType.
  - used in ElfHeaderPart2 and all its struct types.

1 files changed, 2 insertions, 8 deletions

diff --git a/src/java/jogamp/common/os/elf/IOUtils.java b/src/java/jogamp/common/os/elf/IOUtils.java
index 62b47db..454a325 100644
--- a/src/java/jogamp/common/os/elf/IOUtils.java
+++ b/src/java/jogamp/common/os/elf/IOUtils.java
@@ -30,7 +30,6 @@ package jogamp.common.os.elf;
 import java.io.IOException;
 import java.io.RandomAccessFile;
 
-import com.jogamp.common.os.Platform;
 import com.jogamp.common.util.Bitstream;
 
 class IOUtils {
@@ -61,17 +60,12 @@ class IOUtils {
         in.seek(newPos);
     }
 
-    static int readUInt32(final byte[] in, final int offset) {
-        final int v = Bitstream.uint32LongToInt(Bitstream.readUInt32(!Platform.isLittleEndian(), in, offset));
+    static int readUInt32(final boolean isBigEndian, final byte[] in, final int offset) {
+        final int v = Bitstream.uint32LongToInt(Bitstream.readUInt32(isBigEndian, in, offset));
         if( 0 > v ) {
             throw new IllegalArgumentException("Read uint32 value "+toHexString(v)+" > int32-max "+toHexString(MAX_INT_VALUE));
         }
         return v;
-        /** Need to fix endian for below path ..
-        checkBounds(in, offset, 4);
-        final byte[] uint = new byte[] { 0, 0, 0, 0, in[offset+0],  in[offset+1],  in[offset+2],  in[offset+3] };
-        final ByteBuffer b = ByteBuffer.wrap(uint, 0, 8).order(ByteOrder.nativeOrder());
-        return b.asLongBuffer().get(0); */
     }
 
     /**