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, 61 insertions, 0 deletions

diff --git a/doc/elf/crosstest-java-linux-armv6hf-raspi.log b/doc/elf/crosstest-java-linux-armv6hf-raspi.log
new file mode 100644
index 0000000..724ee8e
--- /dev/null
+++ b/doc/elf/crosstest-java-linux-armv6hf-raspi.log
@@ -0,0 +1,61 @@
+JUnit version 4.8.2
+.++++ TestCase.setUp: com.jogamp.common.os.TestElfReader01 - testGNULinuxSelfExe
+[0..4]: 0x0x7f, 0x0x45, 0x0x4c, 0x0x46
+e_class      1, 32 bits
+e_data       1, 1
+e_flags      0x5000002
+    ARM ABI     5
+    ARM lGCC    2
+    ARM FLOAT   0, is hard-float false
+e_version    1
+e_osabi      0, Linux 3
+e_abiversion 0
+e_machine    40, isARM true, isIntel false
+e_version    1
+e_type       2
+EH Size      52
+SH num       29
+SH entsz     40
+SH off       0x1168
+SH strndx    28
+SH num 29
+SH size 40
+abiVFPArgsAcceptsVFPVariant true
+SectionHeader[idx 0, name , type 0x0, link 0, info 0x0, flags 0x0]
+SectionHeader[idx 1, name .interp, type 0x1, link 0, info 0x0, flags 0x2]
+SectionHeader[idx 2, name .note.ABI-tag, type 0x7, link 0, info 0x0, flags 0x2]
+SectionHeader[idx 3, name .note.gnu.build-id, type 0x7, link 0, info 0x0, flags 0x2]
+SectionHeader[idx 4, name .hash, type 0x5, link 6, info 0x0, flags 0x2]
+SectionHeader[idx 5, name .gnu.hash, type 0x6ffffff6, link 6, info 0x0, flags 0x2]
+SectionHeader[idx 6, name .dynsym, type 0xb, link 7, info 0x1, flags 0x2]
+SectionHeader[idx 7, name .dynstr, type 0x3, link 0, info 0x0, flags 0x2]
+SHT_STRTAB: read 307, Section[SectionHeader[idx 7, name .dynstr, type 0x3, link 0, info 0x0, flags 0x2], data[off 0, len 307/307]]
+SectionHeader[idx 8, name .gnu.version, type 0x6fffffff, link 6, info 0x0, flags 0x2]
+SectionHeader[idx 9, name .gnu.version_r, type 0x6ffffffe, link 7, info 0x2, flags 0x2]
+SectionHeader[idx 10, name .rel.dyn, type 0x9, link 6, info 0x0, flags 0x2]
+SectionHeader[idx 11, name .rel.plt, type 0x9, link 6, info 0xd, flags 0x2]
+SectionHeader[idx 12, name .init, type 0x1, link 0, info 0x0, flags 0x6]
+SectionHeader[idx 13, name .plt, type 0x1, link 0, info 0x0, flags 0x6]
+SectionHeader[idx 14, name .text, type 0x1, link 0, info 0x0, flags 0x6]
+SectionHeader[idx 15, name .fini, type 0x1, link 0, info 0x0, flags 0x6]
+SectionHeader[idx 16, name .rodata, type 0x1, link 0, info 0x0, flags 0x2]
+SectionHeader[idx 17, name .ARM.exidx, type 0x70000001, link 14, info 0x0, flags 0x82]
+SectionHeader[idx 18, name .eh_frame, type 0x1, link 0, info 0x0, flags 0x2]
+SectionHeader[idx 19, name .init_array, type 0xe, link 0, info 0x0, flags 0x3]
+SectionHeader[idx 20, name .fini_array, type 0xf, link 0, info 0x0, flags 0x3]
+SectionHeader[idx 21, name .jcr, type 0x1, link 0, info 0x0, flags 0x3]
+SectionHeader[idx 22, name .dynamic, type 0x6, link 7, info 0x0, flags 0x3]
+SectionHeader[idx 23, name .got, type 0x1, link 0, info 0x0, flags 0x3]
+SectionHeader[idx 24, name .data, type 0x1, link 0, info 0x0, flags 0x3]
+SectionHeader[idx 25, name .bss, type 0x8, link 0, info 0x0, flags 0x3]
+SectionHeader[idx 26, name .ARM.attributes, type 0x70000003, link 0, info 0x0, flags 0x0]
+SHT_ARM_ATTRIBUTES: read 49, SectionArmAttributes[SectionHeader[idx 26, name .ARM.attributes, type 0x70000003, link 0, info 0x0, flags 0x0], data[off 0, len 49/49], [aeabi[CPU_name = 6, CPU_arch = 6, ARM_ISA_use = 1, THUMB_ISA_use = 1, FP_arch = 2, ABI_PCS_wchar_t = 4, ABI_FP_denormal = 1, ABI_FP_exceptions = 1, ABI_FP_number_model = 3, ABI_align_needed = 1, ABI_align_preserved = 1, ABI_enum_size = 2, ABI_HardFP_use = 3, ABI_VFP_args = 1, CPU_unaligned_access = 1, DIV_use = 1]]]
+SectionHeader[idx 27, name .gnu_debuglink, type 0x1, link 0, info 0x0, flags 0x0]
+SectionHeader[idx 28, name .shstrtab, type 0x3, link 0, info 0x0, flags 0x0]
+SHT_STRTAB: read 256, Section[SectionHeader[idx 28, name .shstrtab, type 0x3, link 0, info 0x0, flags 0x0], data[off 0, len 256/256]]
+++++ TestCase.tearDown: com.jogamp.common.os.TestElfReader01 - testGNULinuxSelfExe
+
+Time: 1.016
+
+OK (1 test)
+