From 30841742e735e70b3946d16711089960084e894c Mon Sep 17 00:00:00 2001 From: Sven Gothel Date: Sat, 9 Feb 2013 06:17:45 +0100 Subject: Bug 681: Add Elf Parsing for other OS than Linux, if ARM and !ANDROID using /proc/self/exe (Linux) or a found java/jvm native lib. - PlatformPropsImpl.queryABITypeImpl: Check Elf Header for ARM + !ANDROID (i.e. add other OS than Linux, use native java/jmv lib) - NativeLibrary.enumerateLibraryPaths: Add 'sun.boot.library.path' to enumeration! - TestElfReader01: Add test for finding java/jvm native lib and parse it --- src/java/jogamp/common/os/PlatformPropsImpl.java | 117 ++++++++++++++++------- 1 file changed, 83 insertions(+), 34 deletions(-) (limited to 'src/java/jogamp') diff --git a/src/java/jogamp/common/os/PlatformPropsImpl.java b/src/java/jogamp/common/os/PlatformPropsImpl.java index 0c597cb..5b8bf0e 100644 --- a/src/java/jogamp/common/os/PlatformPropsImpl.java +++ b/src/java/jogamp/common/os/PlatformPropsImpl.java @@ -1,5 +1,6 @@ package jogamp.common.os; +import java.io.File; import java.io.IOException; import java.io.RandomAccessFile; import java.nio.ByteBuffer; @@ -7,6 +8,7 @@ import java.nio.IntBuffer; import java.nio.ShortBuffer; import java.security.AccessController; import java.security.PrivilegedAction; +import java.util.List; import jogamp.common.Debug; import jogamp.common.os.elf.ElfHeader; @@ -15,6 +17,7 @@ import jogamp.common.os.elf.SectionHeader; import com.jogamp.common.nio.Buffers; import com.jogamp.common.os.AndroidVersion; +import com.jogamp.common.os.NativeLibrary; import com.jogamp.common.os.Platform; import com.jogamp.common.os.Platform.ABIType; import com.jogamp.common.os.Platform.CPUFamily; @@ -91,7 +94,7 @@ public abstract class PlatformPropsImpl { CPU_ARCH = getCPUTypeImpl(ARCH_lower); OS_TYPE = getOSTypeImpl(); - ABI_TYPE = queryABITypeImpl(CPU_ARCH, OS_TYPE); + ABI_TYPE = queryABITypeImpl(OS_TYPE, CPU_ARCH); os_and_arch = getOSAndArch(OS_TYPE, CPU_ARCH, ABI_TYPE); } @@ -185,59 +188,81 @@ public abstract class PlatformPropsImpl { *
  • not {@link CPUFamily#ARM} -> {@link ABIType#GENERIC_ABI}
    • *
  • else *
    • * *

    *

    + * For Elf parsing either the current executable is used (Linux) or a found java/jvm native library. + *

    + *

    * Elf ARM Tags are read using {@link ElfHeader}, .. and {@link SectionArmAttributes#abiVFPArgsAcceptsVFPVariant(byte)}. *

    - * - * @param cpuType * @param osType + * @param cpuType + * * @return */ - private static final ABIType queryABITypeImpl(CPUType cpuType, OSType osType) { + private static final ABIType queryABITypeImpl(final OSType osType, final CPUType cpuType) { if( CPUFamily.ARM != cpuType.family ) { return ABIType.GENERIC_ABI; } - // TODO: GNU/Linux-Android and other OS - // Android: /proc/self/exe: open failed: EACCES (Permission denied) - // ( OSType.LINUX != osType && OSType.ANDROID != osType ) ) - if( OSType.LINUX != osType ) { + if( OSType.ANDROID == osType ) { // EACCES (Permission denied) - We assume a not rooted device! return ABIType.EABI_GNU_ARMEL; } return AccessController.doPrivileged(new PrivilegedAction() { private final String GNU_LINUX_SELF_EXE = "/proc/self/exe"; public ABIType run() { + boolean abiARM = false; boolean abiVFPArgsAcceptsVFPVariant = false; RandomAccessFile in = null; try { - in = new RandomAccessFile(GNU_LINUX_SELF_EXE, "r"); - final ElfHeader eh = ElfHeader.read(in); - if(DEBUG) { - System.err.println("ELF: Got HDR "+GNU_LINUX_SELF_EXE+": "+eh); - } - final SectionHeader sh = eh.getSectionHeader(SectionHeader.SHT_ARM_ATTRIBUTES); - if( null != sh ) { - if(DEBUG) { - System.err.println("ELF: Got ARM Attribs Section Header: "+sh); + File file = null; + if( OSType.LINUX == osType ) { + file = new File(GNU_LINUX_SELF_EXE); + if( !checkFileReadAccess(file) ) { + file = null; } - final SectionArmAttributes sArmAttrs = (SectionArmAttributes) sh.readSection(in); + } + if( null == file ) { + file = findSysLib("java"); + } + if( null == file ) { + file = findSysLib("jvm"); + } + if( null != file ) { + in = new RandomAccessFile(file, "r"); + final ElfHeader eh = ElfHeader.read(in); if(DEBUG) { - System.err.println("ELF: Got ARM Attribs Section Block : "+sArmAttrs); + System.err.println("ELF: Got HDR "+GNU_LINUX_SELF_EXE+": "+eh); } - final SectionArmAttributes.Attribute abiVFPArgsAttr = sArmAttrs.get(SectionArmAttributes.Tag.ABI_VFP_args); - if( null != abiVFPArgsAttr ) { - abiVFPArgsAcceptsVFPVariant = SectionArmAttributes.abiVFPArgsAcceptsVFPVariant(abiVFPArgsAttr.getULEB128()); + abiARM = eh.isArm(); + if( abiARM ) { + final SectionHeader sh = eh.getSectionHeader(SectionHeader.SHT_ARM_ATTRIBUTES); + if( null != sh ) { + if(DEBUG) { + System.err.println("ELF: Got ARM Attribs Section Header: "+sh); + } + final SectionArmAttributes sArmAttrs = (SectionArmAttributes) sh.readSection(in); + if(DEBUG) { + System.err.println("ELF: Got ARM Attribs Section Block : "+sArmAttrs); + } + final SectionArmAttributes.Attribute abiVFPArgsAttr = sArmAttrs.get(SectionArmAttributes.Tag.ABI_VFP_args); + if( null != abiVFPArgsAttr ) { + abiVFPArgsAcceptsVFPVariant = SectionArmAttributes.abiVFPArgsAcceptsVFPVariant(abiVFPArgsAttr.getULEB128()); + } + } } } } catch(Throwable t) { - t.printStackTrace(); + if(DEBUG) { + t.printStackTrace(); + } } finally { if(null != in) { try { @@ -245,13 +270,42 @@ public abstract class PlatformPropsImpl { } catch (IOException e) { } } } - final ABIType res = abiVFPArgsAcceptsVFPVariant ? ABIType.EABI_GNU_ARMHF : ABIType.EABI_GNU_ARMEL; + final ABIType res; + if( abiARM ) { + res = abiVFPArgsAcceptsVFPVariant ? ABIType.EABI_GNU_ARMHF : ABIType.EABI_GNU_ARMEL; + } else { + res = ABIType.GENERIC_ABI; + } if(DEBUG) { - System.err.println("ELF: abiVFPArgsAcceptsVFPVariant : "+abiVFPArgsAcceptsVFPVariant+" -> "+res); + System.err.println("ELF: abiARM "+abiARM+", abiVFPArgsAcceptsVFPVariant "+abiVFPArgsAcceptsVFPVariant+" -> "+res); } return res; } } ); } + private static boolean checkFileReadAccess(File file) { + try { + return file.isFile() && file.canRead(); + } catch (Throwable t) { } + return false; + } + private static File findSysLib(String libName) { + ClassLoader cl = PlatformPropsImpl.class.getClassLoader(); + final List possibleLibPaths = NativeLibrary.enumerateLibraryPaths(libName, libName, libName, true, cl); + for(int i=0; ilinux-ia64 *
  • linux-i586
    • *
  • linux-armv6
    • + *
  • linux-armv6hf
    • *
  • android-armv6
    • *
  • macosx-universal
    • *
  • solaris-sparc
    • @@ -322,16 +377,10 @@ public abstract class PlatformPropsImpl { _os_and_arch = "i586"; break; case ARM: - _os_and_arch = "armv6"; // TODO: sync with gluegen-cpptasks-base.xml - break; case ARMv5: - _os_and_arch = "armv6"; - break; case ARMv6: - _os_and_arch = "armv6"; - break; case ARMv7: - _os_and_arch = "armv6"; + _os_and_arch = "armv6"; // TODO: sync with gluegen-cpptasks-base.xml break; case SPARC_32: _os_and_arch = "sparc"; -- cgit v1.2.3