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, 55 insertions, 1 deletions

diff --git a/make/elf-header.cfg b/make/elf-header.cfg
index 05c7d79..53da3f6 100644
--- a/make/elf-header.cfg
+++ b/make/elf-header.cfg
@@ -6,7 +6,61 @@ HierarchicalNativeOutput false
 #Implements Sym32 Sym
 #Implements Sym64 Sym
 
-EmitStruct Ehdr
+# ELF-1 (part-1) is independent of CPUType/ABI
+# hence can use an arbitrary MachineDescriptor index
+# for reading the struct Ehdr_p1 !
+StructMachineDescriptorIndex Ehdr_p1 private static final int mdIdx = 0;
+
+# The following sub structures shall use an mdIdx
+# defined by ELF-1 header code, set w/ ctor!
+StructMachineDescriptorIndex Ehdr_p2 private final int mdIdx;
+StructMachineDescriptorIndex Shdr private final int mdIdx;
+
+ManuallyImplement Ehdr_p2.size
+ManuallyImplement Ehdr_p2.create
+ManuallyImplement Ehdr_p2.Ehdr_p2
+ManuallyImplement Shdr.size
+ManuallyImplement Shdr.create
+ManuallyImplement Shdr.Shdr
+
+CustomJavaCode Ehdr_p2  public static int size(final int mdIdx) {
+CustomJavaCode Ehdr_p2      return Ehdr_p2_size[mdIdx];
+CustomJavaCode Ehdr_p2  }
+CustomJavaCode Ehdr_p2
+CustomJavaCode Ehdr_p2  public static Ehdr_p2 create(final int mdIdx) {
+CustomJavaCode Ehdr_p2      return create(mdIdx, Buffers.newDirectByteBuffer(size(mdIdx)));
+CustomJavaCode Ehdr_p2  }
+CustomJavaCode Ehdr_p2
+CustomJavaCode Ehdr_p2  public static Ehdr_p2 create(final int mdIdx, final java.nio.ByteBuffer buf) {
+CustomJavaCode Ehdr_p2      return new Ehdr_p2(mdIdx, buf);
+CustomJavaCode Ehdr_p2  }
+CustomJavaCode Ehdr_p2
+CustomJavaCode Ehdr_p2  Ehdr_p2(final int mdIdx, final java.nio.ByteBuffer buf) {
+CustomJavaCode Ehdr_p2      this.mdIdx = mdIdx;
+CustomJavaCode Ehdr_p2      this.md = MachineDescription.StaticConfig.values()[mdIdx].md;
+CustomJavaCode Ehdr_p2      this.accessor = new StructAccessor(buf);
+CustomJavaCode Ehdr_p2  }
+
+CustomJavaCode Shdr  public static int size(final int mdIdx) {
+CustomJavaCode Shdr      return Shdr_size[mdIdx];
+CustomJavaCode Shdr  }
+CustomJavaCode Shdr
+CustomJavaCode Shdr  public static Shdr create(final int mdIdx) {
+CustomJavaCode Shdr      return create(mdIdx, Buffers.newDirectByteBuffer(size(mdIdx)));
+CustomJavaCode Shdr  }
+CustomJavaCode Shdr
+CustomJavaCode Shdr  public static Shdr create(final int mdIdx, final java.nio.ByteBuffer buf) {
+CustomJavaCode Shdr      return new Shdr(mdIdx, buf);
+CustomJavaCode Shdr  }
+CustomJavaCode Shdr
+CustomJavaCode Shdr  Shdr(final int mdIdx, final java.nio.ByteBuffer buf) {
+CustomJavaCode Shdr      this.mdIdx = mdIdx;
+CustomJavaCode Shdr      this.md = MachineDescription.StaticConfig.values()[mdIdx].md;
+CustomJavaCode Shdr      this.accessor = new StructAccessor(buf);
+CustomJavaCode Shdr  }
+
+EmitStruct Ehdr_p1
+EmitStruct Ehdr_p2
 EmitStruct Shdr
 #EmitStruct Sym32
 #EmitStruct Sym64