| Commit message (Collapse) | Author | Age | Files | Lines |
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c47bc86ae2ee268a1f38c5580d11f93d7f8d6e74)
Code Clean-Up based on our Recommended Settings (jogamp-scripting c47bc86ae2ee268a1f38c5580d11f93d7f8d6e74)
- Change non static accesses to static members using declaring type
- Change indirect accesses to static members to direct accesses (accesses through subtypes)
- Add final modifier to private fields
- Add final modifier to method parameters
- Add final modifier to local variables
- Remove unnecessary casts
- Remove unnecessary '$NON-NLS$' tags
- Remove trailing white spaces on all lines
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'best' ABI
- Use 'os.arch' as a prelim CPUType for MachineDescription
- Always attempt to load a binary and parse it's elf header
- Linux: self-exe
- Android: gluegen-rt library
- Other: java lib
- Always use details (ABI) if ARM
- Android: Check CPU_TYPE and CPU_TYPE2
// FIXME / HACK:
// We use sCPUType for MachineDescriptionRuntime.getStatic()
// until we have determined the final CPU_TYPE, etc.
// MachineDescriptionRuntime gets notified via MachineDescriptionRuntime.notifyPropsInitialized() below.
//
// We could use Elf Ehdr's machine value to determine the bit-size
// used for it's offset table!
// However, 'os.arch' should be a good guess for this task.
Tested manually on
- Linux x86, x86_64, armhf (raspi)
- Android intel and arm
- Windows x86_64
- OSX x86_64
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Signed-off-by: Harvey Harrison <[email protected]>
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Signed-off-by: Harvey Harrison <[email protected]>
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to distinguish ARM soft-float/hard-float (part-2)
+ /**
+ * Returns the {@link ABIType} of the current platform using given {@link CPUType cpuType}
+ * and {@link OSType osType} as a hint.
+ * <p>
+ * Note the following queries are performed:
+ * <ul>
+ * <li> not {@link CPUFamily#ARM} -> {@link ABIType#GENERIC_ABI} </li>
+ * <li> else
+ * <ul>
+ * <li> not {@link OSType#LINUX} -> {@link ABIType#EABI_GNU_ARMEL} </li>
+ * <li> else
+ * <ul>
+ * <li> Elf ARM Tags -> {@link ABIType#EABI_GNU_ARMEL}, {@link ABIType#EABI_GNU_ARMHF} </li>
+ * </ul></li>
+ * </ul></li>
+ * </ul>
+ * </p>
+ * <p>
+ * Elf ARM Tags are read using {@link ElfHeader}, .. and {@link SectionArmAttributes#abiVFPArgsAcceptsVFPVariant(byte)}.
+ * </p>
+ *
+ * @param cpuType
+ * @param osType
+ * @return
+ */
+ private static final ABIType queryABITypeImpl(CPUType cpuType, OSType osType) {
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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
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