Examples with CEntryPointOptions com.oracle.svm.core.c.function.CEntryPointOptions used on opensource projects

Example 16 with CEntryPointOptions

use of com.oracle.svm.core.c.function.CEntryPointOptions in project graal by oracle.

the class JNIFunctions method FromReflectedMethod.

/*
     * jmethodID FromReflectedMethod(JNIEnv *env, jobject method);
     */
@CEntryPoint
@CEntryPointOptions(prologue = JNIEnvironmentEnterPrologue.class, exceptionHandler = JNIExceptionHandlerReturnNullWord.class, publishAs = Publish.NotPublished, include = CEntryPointOptions.NotIncludedAutomatically.class)
static JNIMethodId FromReflectedMethod(JNIEnvironment env, JNIObjectHandle methodHandle) {
    JNIMethodId methodId = Word.nullPointer();
    if (JNIAccessFeature.singleton().haveJavaRuntimeReflectionSupport()) {
        Executable method = JNIObjectHandles.getObject(methodHandle);
        if (method != null) {
            boolean isStatic = Modifier.isStatic(method.getModifiers());
            JNIAccessibleMethodDescriptor descriptor = JNIAccessibleMethodDescriptor.of(method);
            methodId = JNIReflectionDictionary.singleton().getMethodID(method.getDeclaringClass(), descriptor, isStatic);
        }
    }
    return methodId;
}

Example 17 with CEntryPointOptions

use of com.oracle.svm.core.c.function.CEntryPointOptions in project graal by oracle.

the class JNIFunctions method NewWeakGlobalRef.

/*
     * jweak NewWeakGlobalRef(JNIEnv *env, jobject obj);
     */
@CEntryPoint
@CEntryPointOptions(prologue = JNIEnvironmentEnterPrologue.class, exceptionHandler = JNIExceptionHandlerReturnNullHandle.class, publishAs = Publish.NotPublished, include = CEntryPointOptions.NotIncludedAutomatically.class)
static JNIObjectHandle NewWeakGlobalRef(JNIEnvironment env, JNIObjectHandle handle) {
    JNIObjectHandle result = JNIObjectHandles.nullHandle();
    Object obj = JNIObjectHandles.getObject(handle);
    if (obj != null) {
        result = (JNIObjectHandle) JNIGlobalHandles.singleton().createWeak(obj);
    }
    return result;
}

Example 18 with CEntryPointOptions

use of com.oracle.svm.core.c.function.CEntryPointOptions in project graal by oracle.

the class JNIFunctions method ThrowNew.

/*
     * jint ThrowNew(JNIEnv *env, jclass clazz, const char *message);
     */
@CEntryPoint
@CEntryPointOptions(prologue = JNIEnvironmentEnterPrologue.class, exceptionHandler = JNIExceptionHandlerVoid.class, publishAs = Publish.NotPublished, include = CEntryPointOptions.NotIncludedAutomatically.class)
static void ThrowNew(JNIEnvironment env, JNIObjectHandle clazzHandle, CCharPointer message) throws Throwable {
    Class<?> clazz = JNIObjectHandles.getObject(clazzHandle);
    JNIMethodId ctor = JNIReflectionDictionary.singleton().getMethodID(clazz, "<init>", "(Ljava/lang/String;)V", false);
    JNIObjectHandle messageHandle = NewStringUTF(env, message);
    NewObjectWithObjectArgFunctionPointer newObject = (NewObjectWithObjectArgFunctionPointer) env.getFunctions().getNewObject();
    JNIObjectHandle exception = newObject.invoke(env, clazzHandle, ctor, messageHandle);
    throw (Throwable) JNIObjectHandles.getObject(exception);
}

Example 19 with CEntryPointOptions

use of com.oracle.svm.core.c.function.CEntryPointOptions in project graal by oracle.

the class JNIFunctions method FatalError.

/*
     * void FatalError(JNIEnv *env, const char *msg);
     */
@CEntryPoint
@CEntryPointOptions(prologue = JNIEnvironmentEnterPrologue.class, exceptionHandler = JNIExceptionHandlerVoid.class, publishAs = Publish.NotPublished, include = CEntryPointOptions.NotIncludedAutomatically.class)
static void FatalError(JNIEnvironment env, CCharPointer message) {
    Log log = Log.log().autoflush(true);
    log.string("Fatal error reported via JNI: ").string(message).newline();
    VMThreads.StatusSupport.setStatusIgnoreSafepoints();
    SubstrateUtil.printDiagnostics(log, KnownIntrinsics.readCallerStackPointer(), KnownIntrinsics.readReturnAddress());
    LogHandler.get().fatalError();
}

Example 20 with CEntryPointOptions

use of com.oracle.svm.core.c.function.CEntryPointOptions in project graal by oracle.

the class SubstrateSegfaultHandler method dispatch.

@CEntryPoint
@CEntryPointOptions(prologue = NoPrologue.class, epilogue = NoEpilogue.class, publishAs = Publish.NotPublished, include = CEntryPointOptions.NotIncludedAutomatically.class)
@RestrictHeapAccess(access = RestrictHeapAccess.Access.NO_ALLOCATION, reason = "Must not allocate in segfault signal handler.")
@Uninterruptible(reason = "Must be uninterruptible until it gets immune to safepoints", calleeMustBe = false)
private static void dispatch(int signalNumber, @SuppressWarnings("unused") siginfo_t sigInfo, ucontext_t uContext) {
    if (dispatchInProgress) {
        Log.log().newline().string("[ [ SubstrateSegfaultHandler already handling signal ").signed(signalNumber).string(" ] ]").newline();
        return;
    }
    dispatchInProgress = true;
    VMThreads.StatusSupport.setStatusIgnoreSafepoints();
    Log log = Log.log();
    log.autoflush(true);
    log.string("[ [ SubstrateSegfaultHandler caught signal ").signed(signalNumber).string(" ] ]").newline();
    GregsPointer gregs = uContext.uc_mcontext_gregs();
    long spValue = gregs.read(Signal.GregEnum.REG_RSP.getCValue());
    long ipValue = gregs.read(Signal.GregEnum.REG_RIP.getCValue());
    log.newline().string("General Purpose Register Set Values: ").newline();
    log.indent(true);
    log.string("RAX ").zhex(gregs.read(Signal.GregEnum.REG_RAX.getCValue())).newline();
    log.string("RBX ").zhex(gregs.read(Signal.GregEnum.REG_RBX.getCValue())).newline();
    log.string("RCX ").zhex(gregs.read(Signal.GregEnum.REG_RCX.getCValue())).newline();
    log.string("RDX ").zhex(gregs.read(Signal.GregEnum.REG_RDX.getCValue())).newline();
    log.string("RBP ").zhex(gregs.read(Signal.GregEnum.REG_RBP.getCValue())).newline();
    log.string("RSI ").zhex(gregs.read(Signal.GregEnum.REG_RSI.getCValue())).newline();
    log.string("RDI ").zhex(gregs.read(Signal.GregEnum.REG_RDI.getCValue())).newline();
    log.string("RSP ").zhex(spValue).newline();
    log.string("R8  ").zhex(gregs.read(Signal.GregEnum.REG_R8.getCValue())).newline();
    log.string("R9  ").zhex(gregs.read(Signal.GregEnum.REG_R9.getCValue())).newline();
    log.string("R10 ").zhex(gregs.read(Signal.GregEnum.REG_R10.getCValue())).newline();
    log.string("R11 ").zhex(gregs.read(Signal.GregEnum.REG_R11.getCValue())).newline();
    log.string("R12 ").zhex(gregs.read(Signal.GregEnum.REG_R12.getCValue())).newline();
    log.string("R13 ").zhex(gregs.read(Signal.GregEnum.REG_R13.getCValue())).newline();
    log.string("R14 ").zhex(gregs.read(Signal.GregEnum.REG_R14.getCValue())).newline();
    log.string("R15 ").zhex(gregs.read(Signal.GregEnum.REG_R15.getCValue())).newline();
    log.string("EFL ").zhex(gregs.read(Signal.GregEnum.REG_EFL.getCValue())).newline();
    log.string("RIP ").zhex(ipValue).newline();
    log.indent(false);
    SubstrateUtil.printDiagnostics(log, WordFactory.pointer(spValue), WordFactory.pointer(ipValue));
    log.string("Use runtime option -R:-InstallSegfaultHandler if you don't want to use SubstrateSegfaultHandler.").newline();
    log.newline().string("Bye bye ...").newline().newline();
    LogHandler.get().fatalError();
}