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, 60 insertions, 0 deletions

diff --git a/make/stub_includes/os/elf_header.h b/make/stub_includes/os/elf_header.h
new file mode 100644
index 0000000..7d608f0
--- /dev/null
+++ b/make/stub_includes/os/elf_header.h
@@ -0,0 +1,60 @@
+
+#include <gluegen_stddef.h>
+#include <gluegen_stdint.h>
+
+// #define EI_NIDENT 16
+
+// #define ElfN_Addr uintptr_t
+// #define ElfN_Off size_t
+typedef uintptr_t ElfN_Addr;
+typedef size_t ElfN_Off;
+typedef size_t ElfN_size;
+ 
+typedef struct {
+    unsigned char   e_ident[16];
+    uint16_t        e_type;
+    uint16_t        e_machine;
+    uint32_t        e_version;
+    ElfN_Addr       e_entry;
+    ElfN_Off        e_phoff;
+    ElfN_Off        e_shoff;
+    uint32_t        e_flags;
+    uint16_t        e_ehsize;
+    uint16_t        e_phentsize;
+    uint16_t        e_phnum;
+    uint16_t        e_shentsize;
+    uint16_t        e_shnum;
+    uint16_t        e_shstrndx;
+} Ehdr;
+
+typedef struct {
+    uint32_t        sh_name;     
+    uint32_t        sh_type;     
+    ElfN_size       sh_flags;    
+    ElfN_Addr       sh_addr;     
+    ElfN_Off        sh_offset;   
+    ElfN_size       sh_size;     
+    uint32_t        sh_link;     
+    uint32_t        sh_info;     
+    ElfN_size       sh_addralign;    
+    ElfN_size       sh_entsize;      
+} Shdr;
+
+typedef struct {
+    uint32_t        st_name;     
+    ElfN_Addr       st_value;    
+    ElfN_size       st_size;     
+    uint8_t         st_info;     
+    uint8_t         st_other;    
+    uint16_t        st_shndx;    
+} Sym32;
+
+typedef struct {
+    uint32_t        st_name;     
+    uint8_t         st_info;     
+    uint8_t         st_other;    
+    uint16_t        st_shndx;    
+    ElfN_Addr       st_value;    
+    ElfN_size       st_size;     
+} Sym64;
+