Examples with CallVariant com.oracle.svm.jni.hosted.JNIJavaCallWrapperMethod.CallVariant used on opensource projects

Example 1 with CallVariant

use of com.oracle.svm.jni.hosted.JNIJavaCallWrapperMethod.CallVariant in project graal by oracle.

the class JNIFunctionTablesFeature method buildFunctionsInitializer.

private JNIStructFunctionsInitializer<JNINativeInterface> buildFunctionsInitializer(CompilationAccessImpl access, CFunctionPointer unimplemented) {
    Class<JNIFunctions> clazz = JNIFunctions.class;
    HostedType functions = access.getMetaAccess().lookupJavaType(clazz);
    HostedMethod[] methods = functions.getDeclaredMethods();
    int index = 0;
    int count = methods.length + generatedMethods.length;
    // Call, CallStatic, CallNonvirtual: for each return value kind: array, va_list, varargs
    // NewObject: array, va_list, varargs
    count += (jniKinds.size() * 3 + 1) * 3;
    int[] offsets = new int[count];
    CFunctionPointer[] pointers = new CFunctionPointer[offsets.length];
    for (HostedMethod method : methods) {
        StructFieldInfo field = findFieldFor(functionTableMetadata, method.getName());
        offsets[index] = field.getOffsetInfo().getProperty();
        pointers[index] = getStubFunctionPointer(access, method);
        index++;
    }
    for (ResolvedJavaMethod accessor : generatedMethods) {
        StructFieldInfo field = findFieldFor(functionTableMetadata, accessor.getName());
        AnalysisUniverse analysisUniverse = access.getUniverse().getBigBang().getUniverse();
        AnalysisMethod analysisMethod = analysisUniverse.lookup(accessor);
        HostedMethod hostedMethod = access.getUniverse().lookup(analysisMethod);
        offsets[index] = field.getOffsetInfo().getProperty();
        pointers[index] = MethodPointer.factory(hostedMethod);
        index++;
    }
    for (CallVariant variant : CallVariant.values()) {
        CFunctionPointer trampoline = prepareCallTrampoline(access, variant, false);
        String suffix = (variant == CallVariant.ARRAY) ? "A" : ((variant == CallVariant.VA_LIST) ? "V" : "");
        CFunctionPointer nonvirtualTrampoline = prepareCallTrampoline(access, variant, true);
        for (JavaKind kind : jniKinds) {
            String[] prefixes = { "Call", "CallStatic" };
            for (String prefix : prefixes) {
                StructFieldInfo field = findFieldFor(functionTableMetadata, prefix + kind.name() + "Method" + suffix);
                offsets[index] = field.getOffsetInfo().getProperty();
                pointers[index] = trampoline;
                index++;
            }
            StructFieldInfo field = findFieldFor(functionTableMetadata, "CallNonvirtual" + kind.name() + "Method" + suffix);
            offsets[index] = field.getOffsetInfo().getProperty();
            pointers[index] = nonvirtualTrampoline;
            index++;
        }
        StructFieldInfo field = findFieldFor(functionTableMetadata, "NewObject" + suffix);
        offsets[index] = field.getOffsetInfo().getProperty();
        pointers[index] = trampoline;
        index++;
    }
    VMError.guarantee(index == offsets.length && index == pointers.length);
    return new JNIStructFunctionsInitializer<>(JNINativeInterface.class, offsets, pointers, unimplemented);
}