Bug 681: Add Basic ELF Header + ARM EABI Section Parsing, allowing to distinguish ARM soft-float/hard-float (part-1)

https://jogamp.org/bugzilla/show_bug.cgi?id=681

+ * References:
+ * <ul>
+ *   <li>http://linux.die.net/man/5/elf</li>
+ *   <li>http://www.sco.com/developers/gabi/latest/contents.html</li>
+ *   <li>http://infocenter.arm.com/
+ *   <ul>
+ *      <li>ARM IHI 0044E, current through ABI release 2.09</li>
+ *      <li>ARM IHI 0045D, current through ABI release 2.09</li>
+ *   </ul></li>

Added self contained jogamp.common.os.elf package w/ entry point class ElfHeader
to read a RandomAccessFile and parse it as an ELF file.

ELF Parsing completness:
  - Header: OK
  - SectionHeader: OK
  - Section Type SHT_ARM_ATTRIBUTES: OK
     - Will be read into SectionArmAttributes
     - Used to distinguisgh soft/hard VFP float

Tested manually on:
  - Linux intel 32bit / 64bit, arm soft-float and hard-float

1 files changed, 179 insertions, 0 deletions

diff --git a/src/java/jogamp/common/os/elf/Ehdr.java b/src/java/jogamp/common/os/elf/Ehdr.java
new file mode 100644
index 0000000..d787f67
--- /dev/null
+++ b/src/java/jogamp/common/os/elf/Ehdr.java
@@ -0,0 +1,179 @@
+/* !---- DO NOT EDIT: This file autogenerated by com/jogamp/gluegen/JavaEmitter.java on Thu Feb 07 17:54:18 CET 2013 ----! */
+
+
+package jogamp.common.os.elf;
+
+import java.nio.*;
+
+import com.jogamp.gluegen.runtime.*;
+import com.jogamp.common.os.*;
+import com.jogamp.common.nio.*;
+import jogamp.common.os.MachineDescriptionRuntime;
+
+
+public class Ehdr {
+
+  StructAccessor accessor;
+
+  private static final int mdIdx = MachineDescriptionRuntime.getStatic().ordinal();
+
+  private static final int[] Ehdr_size = new int[] { 52 /* ARMle_EABI */, 52 /* X86_32_UNIX */, 64 /* X86_64_UNIX */, 52 /* X86_32_MACOS */, 52 /* X86_32_WINDOWS */, 64 /* X86_64_WINDOWS */  };
+  private static final int[] e_ident_offset = new int[] { 0 /* ARMle_EABI */, 0 /* X86_32_UNIX */, 0 /* X86_64_UNIX */, 0 /* X86_32_MACOS */, 0 /* X86_32_WINDOWS */, 0 /* X86_64_WINDOWS */ };
+  private static final int[] e_type_offset = new int[] { 16 /* ARMle_EABI */, 16 /* X86_32_UNIX */, 16 /* X86_64_UNIX */, 16 /* X86_32_MACOS */, 16 /* X86_32_WINDOWS */, 16 /* X86_64_WINDOWS */ };
+  private static final int[] e_machine_offset = new int[] { 18 /* ARMle_EABI */, 18 /* X86_32_UNIX */, 18 /* X86_64_UNIX */, 18 /* X86_32_MACOS */, 18 /* X86_32_WINDOWS */, 18 /* X86_64_WINDOWS */ };
+  private static final int[] e_version_offset = new int[] { 20 /* ARMle_EABI */, 20 /* X86_32_UNIX */, 20 /* X86_64_UNIX */, 20 /* X86_32_MACOS */, 20 /* X86_32_WINDOWS */, 20 /* X86_64_WINDOWS */ };
+  private static final int[] e_entry_offset = new int[] { 24 /* ARMle_EABI */, 24 /* X86_32_UNIX */, 24 /* X86_64_UNIX */, 24 /* X86_32_MACOS */, 24 /* X86_32_WINDOWS */, 24 /* X86_64_WINDOWS */ };
+  private static final int[] e_phoff_offset = new int[] { 28 /* ARMle_EABI */, 28 /* X86_32_UNIX */, 32 /* X86_64_UNIX */, 28 /* X86_32_MACOS */, 28 /* X86_32_WINDOWS */, 32 /* X86_64_WINDOWS */ };
+  private static final int[] e_shoff_offset = new int[] { 32 /* ARMle_EABI */, 32 /* X86_32_UNIX */, 40 /* X86_64_UNIX */, 32 /* X86_32_MACOS */, 32 /* X86_32_WINDOWS */, 40 /* X86_64_WINDOWS */ };
+  private static final int[] e_flags_offset = new int[] { 36 /* ARMle_EABI */, 36 /* X86_32_UNIX */, 48 /* X86_64_UNIX */, 36 /* X86_32_MACOS */, 36 /* X86_32_WINDOWS */, 48 /* X86_64_WINDOWS */ };
+  private static final int[] e_ehsize_offset = new int[] { 40 /* ARMle_EABI */, 40 /* X86_32_UNIX */, 52 /* X86_64_UNIX */, 40 /* X86_32_MACOS */, 40 /* X86_32_WINDOWS */, 52 /* X86_64_WINDOWS */ };
+  private static final int[] e_phentsize_offset = new int[] { 42 /* ARMle_EABI */, 42 /* X86_32_UNIX */, 54 /* X86_64_UNIX */, 42 /* X86_32_MACOS */, 42 /* X86_32_WINDOWS */, 54 /* X86_64_WINDOWS */ };
+  private static final int[] e_phnum_offset = new int[] { 44 /* ARMle_EABI */, 44 /* X86_32_UNIX */, 56 /* X86_64_UNIX */, 44 /* X86_32_MACOS */, 44 /* X86_32_WINDOWS */, 56 /* X86_64_WINDOWS */ };
+  private static final int[] e_shentsize_offset = new int[] { 46 /* ARMle_EABI */, 46 /* X86_32_UNIX */, 58 /* X86_64_UNIX */, 46 /* X86_32_MACOS */, 46 /* X86_32_WINDOWS */, 58 /* X86_64_WINDOWS */ };
+  private static final int[] e_shnum_offset = new int[] { 48 /* ARMle_EABI */, 48 /* X86_32_UNIX */, 60 /* X86_64_UNIX */, 48 /* X86_32_MACOS */, 48 /* X86_32_WINDOWS */, 60 /* X86_64_WINDOWS */ };
+  private static final int[] e_shstrndx_offset = new int[] { 50 /* ARMle_EABI */, 50 /* X86_32_UNIX */, 62 /* X86_64_UNIX */, 50 /* X86_32_MACOS */, 50 /* X86_32_WINDOWS */, 62 /* X86_64_WINDOWS */ };
+
+  public static int size() {
+    return Ehdr_size[mdIdx];
+  }
+
+  public static Ehdr create() {
+    return create(Buffers.newDirectByteBuffer(size()));
+  }
+
+  public static Ehdr create(java.nio.ByteBuffer buf) {
+      return new Ehdr(buf);
+  }
+
+  Ehdr(java.nio.ByteBuffer buf) {
+    accessor = new StructAccessor(buf);
+  }
+
+  public java.nio.ByteBuffer getBuffer() {
+    return accessor.getBuffer();
+  }
+
+  public Ehdr setE_ident(byte[] val) {
+    accessor.setBytesAt(e_ident_offset[mdIdx], val);    return this;
+  }
+
+  public byte[] getE_ident() {
+    return accessor.getBytesAt(e_ident_offset[mdIdx], new byte[16]); }
+
+  public Ehdr setE_type(short val) {
+    accessor.setShortAt(e_type_offset[mdIdx], val);
+    return this;
+  }
+
+  public short getE_type() {
+    return accessor.getShortAt(e_type_offset[mdIdx]);
+  }
+
+  public Ehdr setE_machine(short val) {
+    accessor.setShortAt(e_machine_offset[mdIdx], val);
+    return this;
+  }
+
+  public short getE_machine() {
+    return accessor.getShortAt(e_machine_offset[mdIdx]);
+  }
+
+  public Ehdr setE_version(int val) {
+    accessor.setIntAt(e_version_offset[mdIdx], val);
+    return this;
+  }
+
+  public int getE_version() {
+    return accessor.getIntAt(e_version_offset[mdIdx]);
+  }
+
+  public Ehdr setE_entry(long val) {
+    accessor.setLongAt(e_entry_offset[mdIdx], val, MachineDescriptionRuntime.getStatic().md.longSizeInBytes());
+    return this;
+  }
+
+  public long getE_entry() {
+    return accessor.getLongAt(e_entry_offset[mdIdx], MachineDescriptionRuntime.getStatic().md.longSizeInBytes());
+  }
+
+  public Ehdr setE_phoff(long val) {
+    accessor.setLongAt(e_phoff_offset[mdIdx], val, MachineDescriptionRuntime.getStatic().md.longSizeInBytes());
+    return this;
+  }
+
+  public long getE_phoff() {
+    return accessor.getLongAt(e_phoff_offset[mdIdx], MachineDescriptionRuntime.getStatic().md.longSizeInBytes());
+  }
+
+  public Ehdr setE_shoff(long val) {
+    accessor.setLongAt(e_shoff_offset[mdIdx], val, MachineDescriptionRuntime.getStatic().md.longSizeInBytes());
+    return this;
+  }
+
+  public long getE_shoff() {
+    return accessor.getLongAt(e_shoff_offset[mdIdx], MachineDescriptionRuntime.getStatic().md.longSizeInBytes());
+  }
+
+  public Ehdr setE_flags(int val) {
+    accessor.setIntAt(e_flags_offset[mdIdx], val);
+    return this;
+  }
+
+  public int getE_flags() {
+    return accessor.getIntAt(e_flags_offset[mdIdx]);
+  }
+
+  public Ehdr setE_ehsize(short val) {
+    accessor.setShortAt(e_ehsize_offset[mdIdx], val);
+    return this;
+  }
+
+  public short getE_ehsize() {
+    return accessor.getShortAt(e_ehsize_offset[mdIdx]);
+  }
+
+  public Ehdr setE_phentsize(short val) {
+    accessor.setShortAt(e_phentsize_offset[mdIdx], val);
+    return this;
+  }
+
+  public short getE_phentsize() {
+    return accessor.getShortAt(e_phentsize_offset[mdIdx]);
+  }
+
+  public Ehdr setE_phnum(short val) {
+    accessor.setShortAt(e_phnum_offset[mdIdx], val);
+    return this;
+  }
+
+  public short getE_phnum() {
+    return accessor.getShortAt(e_phnum_offset[mdIdx]);
+  }
+
+  public Ehdr setE_shentsize(short val) {
+    accessor.setShortAt(e_shentsize_offset[mdIdx], val);
+    return this;
+  }
+
+  public short getE_shentsize() {
+    return accessor.getShortAt(e_shentsize_offset[mdIdx]);
+  }
+
+  public Ehdr setE_shnum(short val) {
+    accessor.setShortAt(e_shnum_offset[mdIdx], val);
+    return this;
+  }
+
+  public short getE_shnum() {
+    return accessor.getShortAt(e_shnum_offset[mdIdx]);
+  }
+
+  public Ehdr setE_shstrndx(short val) {
+    accessor.setShortAt(e_shstrndx_offset[mdIdx], val);
+    return this;
+  }
+
+  public short getE_shstrndx() {
+    return accessor.getShortAt(e_shstrndx_offset[mdIdx]);
+  }
+}