// natClass.cc - Implementation of java.lang.Class native methods.
-/* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
+/* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
Free Software Foundation
This file is part of libgcj.
#include <java/lang/NullPointerException.h>
#include <java/lang/RuntimePermission.h>
#include <java/lang/System.h>
+#include <java/lang/SecurityException.h>
#include <java/lang/SecurityManager.h>
#include <java/lang/StringBuffer.h>
#include <java/lang/VMClassLoader.h>
#include <gcj/method.h>
#include <gnu/gcj/RawData.h>
#include <java/lang/VerifyError.h>
+#include <java/lang/InternalError.h>
+#include <java/lang/TypeNotPresentException.h>
+#include <java/lang/Byte.h>
+#include <java/lang/Short.h>
+#include <java/lang/Integer.h>
+#include <java/lang/Float.h>
+#include <java/lang/Double.h>
+#include <java/lang/Long.h>
+#include <java/lang/Character.h>
+#include <java/lang/Boolean.h>
+#include <java/lang/annotation/Annotation.h>
+#include <java/util/HashMap.h>
+#include <java/util/Map.h>
+#include <sun/reflect/annotation/AnnotationInvocationHandler.h>
+#include <java/lang/Enum.h>
#include <java-cpool.h>
#include <java-interp.h>
if (s != NULL)
{
jclass caller = _Jv_StackTrace::GetCallingClass (&Class::class$);
- ClassLoader *caller_loader = NULL;
- if (caller)
- caller_loader = caller->getClassLoaderInternal();
+ return getClassLoader (caller);
+ }
+
+ return loader;
+}
+
+java::lang::ClassLoader *
+java::lang::Class::getClassLoader (jclass caller)
+{
+ java::lang::SecurityManager *s = java::lang::System::getSecurityManager();
+ if (s != NULL)
+ {
+ ClassLoader *caller_loader = caller->getClassLoaderInternal();
// If the caller has a non-null class loader, and that loader
// is not this class' loader or an ancestor thereof, then do a
s->checkPermission (new RuntimePermission (JvNewStringLatin1 ("getClassLoader")));
}
- // This particular 'return' has been changed a couple of times over
- // libgcj's history. This particular approach is a little weird,
- // because it means that all classes linked into the application
- // will see NULL for their class loader. This may confuse some
- // applications that aren't expecting this; the solution is to use a
- // different linking model for these applications. In the past we
- // returned the system class loader in this case, but that is
- // incorrect. Also, back then we didn't have other linkage models
- // to fall back on.
return loader;
}
}
JArray<java::lang::reflect::Constructor *> *
-java::lang::Class::_getConstructors (jboolean declared)
+java::lang::Class::getDeclaredConstructors (jboolean publicOnly)
{
- memberAccessCheck(java::lang::reflect::Member::PUBLIC);
-
int numConstructors = 0;
int max = isPrimitive () ? 0 : method_count;
int i;
if (method->name == NULL
|| ! _Jv_equalUtf8Consts (method->name, init_name))
continue;
- if (! declared
+ if (publicOnly
&& ! java::lang::reflect::Modifier::isPublic(method->accflags))
continue;
numConstructors++;
if (method->name == NULL
|| ! _Jv_equalUtf8Consts (method->name, init_name))
continue;
- if (! declared
+ if (publicOnly
&& ! java::lang::reflect::Modifier::isPublic(method->accflags))
continue;
java::lang::reflect::Constructor *cons
}
JArray<jclass> *
-java::lang::Class::getClasses (void)
-{
- // FIXME: security checking.
-
- // Until we have inner classes, it always makes sense to return an
- // empty array.
- JArray<jclass> *result
- = (JArray<jclass> *) JvNewObjectArray (0, &java::lang::Class::class$,
- NULL);
- return result;
-}
-
-JArray<jclass> *
-java::lang::Class::getDeclaredClasses (void)
-{
- memberAccessCheck (java::lang::reflect::Member::DECLARED);
- // Until we have inner classes, it always makes sense to return an
- // empty array.
- JArray<jclass> *result
- = (JArray<jclass> *) JvNewObjectArray (0, &java::lang::Class::class$,
- NULL);
- return result;
-}
-
-jclass
-java::lang::Class::getDeclaringClass (void)
-{
- // Until we have inner classes, it makes sense to always return
- // NULL.
- return NULL;
-}
-
-JArray<jclass> *
java::lang::Class::getInterfaces (void)
{
jobjectArray r = JvNewObjectArray (interface_count, getClass (), NULL);
java::lang::Class::isAssignableFrom (jclass klass)
{
// Arguments may not have been initialized, given ".class" syntax.
- _Jv_InitClass (this);
- _Jv_InitClass (klass);
- return _Jv_IsAssignableFrom (this, klass);
+ // This ensures we can at least look at their superclasses.
+ _Jv_Linker::wait_for_state (this, JV_STATE_LOADING);
+ _Jv_Linker::wait_for_state (klass, JV_STATE_LOADING);
+ return _Jv_IsAssignableFrom (klass, this);
}
jboolean
{
if (! obj)
return false;
- _Jv_InitClass (this);
- return _Jv_IsAssignableFrom (this, JV_CLASS (obj));
+ return _Jv_IsAssignableFrom (JV_CLASS (obj), this);
}
jobject
void
java::lang::Class::initializeClass (void)
{
- // Short-circuit to avoid needless locking.
- if (state == JV_STATE_DONE)
+ // Short-circuit to avoid needless locking (expression includes
+ // JV_STATE_PHANTOM and JV_STATE_DONE).
+ if (state >= JV_STATE_PHANTOM)
return;
// Step 1. We introduce a new scope so we can synchronize more
{
_Jv_Linker::wait_for_state(this, JV_STATE_LINKED);
}
+ catch (java::lang::SecurityException *x)
+ {
+ throw x;
+ }
catch (java::lang::Throwable *x)
{
// Turn into a NoClassDefFoundError.
{
_Jv_InitClass (superclass);
}
+ catch (java::lang::SecurityException *x)
+ {
+ throw x;
+ }
catch (java::lang::Throwable *except)
{
// Caught an exception.
if (meth)
((void (*) (void)) meth->ncode) ();
}
+ catch (java::lang::SecurityException *x)
+ {
+ throw x;
+ }
catch (java::lang::Throwable *except)
{
if (! java::lang::Error::class$.isInstance(except))
\f
+static unsigned char
+read_u1 (unsigned char *&p)
+{
+ return *p++;
+}
+
+static unsigned char
+read_u1 (unsigned char *&p, unsigned char *next)
+{
+ if (next - p < 1)
+ throw new java::lang::InternalError();
+ return *p++;
+}
+
+static unsigned int
+read_u2 (unsigned char *&p)
+{
+ unsigned int b1 = *p++;
+ unsigned int b2 = *p++;
+ return (b1 << 8) | b2;
+}
+
+static unsigned int
+read_u2 (unsigned char *&p, unsigned char *next)
+{
+ if (next - p < 2)
+ throw new java::lang::InternalError();
+ return read_u2 (p);
+}
+
+static int
+read_4 (unsigned char *&p)
+{
+ int b1 = *p++;
+ int b2 = *p++;
+ int b3 = *p++;
+ int b4 = *p++;
+ return (b1 << 24) | (b2 << 16) | (b3 << 8) | b4;
+}
+
+jstring
+java::lang::Class::getReflectionSignature (jint /*jv_attr_type*/ type,
+ jint obj_index)
+{
+ // We just re-parse the bytecode for this data each time. If
+ // necessary we can cache results, but I suspect this is not
+ // performance sensitive.
+ unsigned char *bytes = reflection_data;
+ if (bytes == NULL)
+ return NULL;
+ while (true)
+ {
+ int kind = read_u1 (bytes);
+ if (kind == JV_DONE_ATTR)
+ return NULL;
+ int len = read_4 (bytes);
+ unsigned char *next = bytes + len;
+ if (kind != type)
+ {
+ bytes = next;
+ continue;
+ }
+ if (type != JV_CLASS_ATTR)
+ {
+ unsigned short index = read_u2 (bytes, next);
+ if (index != obj_index)
+ {
+ bytes = next;
+ continue;
+ }
+ }
+ int nt = read_u1 (bytes, next);
+ if (nt != JV_SIGNATURE_KIND)
+ {
+ bytes = next;
+ continue;
+ }
+ unsigned int cpool_idx = read_u2 (bytes, next);
+ if (cpool_idx >= (unsigned int) constants.size
+ || constants.tags[cpool_idx] != JV_CONSTANT_Utf8)
+ {
+ // We just ignore errors for now. It isn't clear what is
+ // best to do here, as an encoding error here means a bug
+ // either in the compiler or in defineclass.cc.
+ return NULL;
+ }
+ return _Jv_NewStringUtf8Const (constants.data[cpool_idx].utf8);
+ }
+}
+
+jstring
+java::lang::Class::getReflectionSignature (::java::lang::reflect::Constructor *c)
+{
+ _Jv_Method *meth = _Jv_FromReflectedConstructor (c);
+ unsigned short meth_index = meth - methods;
+ return getReflectionSignature (JV_METHOD_ATTR, meth_index);
+}
+
+jstring
+java::lang::Class::getReflectionSignature (::java::lang::reflect::Method *m)
+{
+ _Jv_Method *meth = _Jv_FromReflectedMethod (m);
+ unsigned short meth_index = meth - methods;
+ return getReflectionSignature (JV_METHOD_ATTR, meth_index);
+}
+
+jstring
+java::lang::Class::getReflectionSignature (::java::lang::reflect::Field *f)
+{
+ _Jv_Field *fld = _Jv_FromReflectedField (f);
+ unsigned short fld_index = fld - fields;
+ return getReflectionSignature (JV_FIELD_ATTR, fld_index);
+}
+
+jstring
+java::lang::Class::getClassSignature()
+{
+ return getReflectionSignature (JV_CLASS_ATTR, 0);
+}
+
+jint
+java::lang::Class::getEnclosingMethodData()
+{
+ unsigned char *bytes = reflection_data;
+ if (bytes == NULL)
+ return 0;
+ while (true)
+ {
+ int kind = read_u1 (bytes);
+ if (kind == JV_DONE_ATTR)
+ return 0;
+ int len = read_4 (bytes);
+ unsigned char *next = bytes + len;
+ if (kind != JV_CLASS_ATTR)
+ {
+ bytes = next;
+ continue;
+ }
+ int type = read_u1 (bytes, next);
+ if (type != JV_ENCLOSING_METHOD_KIND)
+ {
+ bytes = next;
+ continue;
+ }
+ int class_index = read_u2 (bytes, next);
+ int method_index = read_u2 (bytes, next);
+ _Jv_word result;
+ _Jv_storeIndexes (&result, class_index, method_index);
+ return result.i;
+ }
+}
+
+jclass
+java::lang::Class::getEnclosingClass()
+{
+ _Jv_word indexes;
+ indexes.i = getEnclosingMethodData();
+ if (indexes.i == 0)
+ return NULL;
+ _Jv_ushort class_index, method_index;
+ _Jv_loadIndexes (&indexes, class_index, method_index);
+ return _Jv_Linker::resolve_pool_entry (this, class_index).clazz;
+}
+
+::java::lang::reflect::Method *
+java::lang::Class::getEnclosingMethod()
+{
+ _Jv_word indexes;
+ indexes.i = getEnclosingMethodData();
+ if (indexes.i == 0)
+ return NULL;
+ _Jv_ushort class_index, method_index;
+ _Jv_loadIndexes (&indexes, class_index, method_index);
+ jclass found_class;
+ _Jv_Method *method = _Jv_Linker::resolve_method_entry (this, found_class,
+ class_index,
+ method_index,
+ false, false);
+ using namespace java::lang::reflect;
+ Method *rmethod = new Method ();
+ rmethod->offset = (char *) method - (char *) found_class->methods;
+ rmethod->declaringClass = found_class;
+ return rmethod;
+}
+
+::java::lang::reflect::Constructor *
+java::lang::Class::getEnclosingConstructor()
+{
+ _Jv_word indexes;
+ indexes.i = getEnclosingMethodData();
+ if (indexes.i == 0)
+ return NULL;
+ _Jv_ushort class_index, method_index;
+ _Jv_loadIndexes (&indexes, class_index, method_index);
+ jclass found_class;
+ _Jv_Method *method = _Jv_Linker::resolve_method_entry (this, found_class,
+ class_index,
+ method_index,
+ false, false);
+ using namespace java::lang::reflect;
+ Constructor *cons = new Constructor ();
+ cons->offset = (char *) method - (char *) found_class->methods;
+ cons->declaringClass = this;
+ return cons;
+}
+
+static void
+check_constant (_Jv_Constants *pool, jint cpool_index, jint type)
+{
+ if (cpool_index <= 0 || cpool_index >= pool->size)
+ throw new InternalError(JvNewStringLatin1("invalid constant pool index"));
+ if ((pool->tags[cpool_index] &
+ ~(JV_CONSTANT_ResolvedFlag|JV_CONSTANT_LazyFlag)) != type)
+ {
+ ::java::lang::StringBuffer *sb = new ::java::lang::StringBuffer();
+ sb->append(JvNewStringLatin1("expected pool constant "));
+ sb->append(type);
+ sb->append(JvNewStringLatin1(" but got "));
+ sb->append(jint (pool->tags[cpool_index]));
+ throw new InternalError(sb->toString());
+ }
+}
+
+// Forward declaration
+static ::java::lang::annotation::Annotation *
+parseAnnotation(jclass klass, _Jv_Constants *pool,
+ unsigned char *&bytes, unsigned char *last);
+
+static jobject
+parseAnnotationElement(jclass klass, _Jv_Constants *pool,
+ unsigned char *&bytes, unsigned char *last)
+{
+ int tag = read_u1 (bytes, last);
+ jobject result;
+ switch (tag)
+ {
+ case 'B':
+ {
+ int cindex = read_u2 (bytes, last);
+ check_constant (pool, cindex, JV_CONSTANT_Integer);
+ result = Byte::valueOf (pool->data[cindex].i);
+ }
+ break;
+ case 'C':
+ {
+ int cindex = read_u2 (bytes, last);
+ check_constant (pool, cindex, JV_CONSTANT_Integer);
+ result = Character::valueOf (pool->data[cindex].i);
+ }
+ break;
+ case 'S':
+ {
+ int cindex = read_u2 (bytes, last);
+ check_constant (pool, cindex, JV_CONSTANT_Integer);
+ result = Short::valueOf (pool->data[cindex].i);
+ }
+ break;
+ case 'Z':
+ {
+ int cindex = read_u2 (bytes, last);
+ check_constant (pool, cindex, JV_CONSTANT_Integer);
+ result = Boolean::valueOf (jboolean (pool->data[cindex].i));
+ }
+ break;
+ case 'I':
+ {
+ int cindex = read_u2 (bytes, last);
+ check_constant (pool, cindex, JV_CONSTANT_Integer);
+ result = Integer::valueOf (pool->data[cindex].i);
+ }
+ break;
+ case 'D':
+ {
+ int cindex = read_u2 (bytes, last);
+ check_constant (pool, cindex, JV_CONSTANT_Double);
+ _Jv_word2 word;
+ memcpy (&word, &pool->data[cindex], 2 * sizeof (_Jv_word));
+ result = Double::valueOf (word.d);
+ }
+ break;
+ case 'F':
+ {
+ int cindex = read_u2 (bytes, last);
+ check_constant (pool, cindex, JV_CONSTANT_Float);
+ result = Float::valueOf (pool->data[cindex].f);
+ }
+ break;
+ case 'J':
+ {
+ int cindex = read_u2 (bytes, last);
+ check_constant (pool, cindex, JV_CONSTANT_Double);
+ _Jv_word2 word;
+ memcpy (&word, &pool->data[cindex], 2 * sizeof (_Jv_word));
+ result = Long::valueOf (word.l);
+ }
+ break;
+ case 's':
+ {
+ int cindex = read_u2 (bytes, last);
+ // Despite what the JVM spec says, compilers generate a Utf8
+ // constant here, not a String.
+ check_constant (pool, cindex, JV_CONSTANT_Utf8);
+ result = pool->data[cindex].utf8->toString();
+ }
+ break;
+ case 'e':
+ {
+ int type_name_index = read_u2 (bytes, last);
+ check_constant (pool, type_name_index, JV_CONSTANT_Utf8);
+ int const_name_index = read_u2 (bytes, last);
+ check_constant (pool, const_name_index, JV_CONSTANT_Utf8);
+
+ _Jv_Utf8Const *u_name = pool->data[type_name_index].utf8;
+ _Jv_Utf8Const *e_name = pool->data[const_name_index].utf8;
+
+ // FIXME: throw correct exceptions at the correct times.
+ jclass e_class = _Jv_FindClassFromSignature(u_name->chars(),
+ klass->getClassLoaderInternal());
+ result = ::java::lang::Enum::valueOf(e_class, e_name->toString());
+ }
+ break;
+ case 'c':
+ {
+ int cindex = read_u2 (bytes, last);
+ check_constant (pool, cindex, JV_CONSTANT_Utf8);
+ _Jv_Utf8Const *u_name = pool->data[cindex].utf8;
+ jclass anno_class
+ = _Jv_FindClassFromSignatureNoException(u_name->chars(),
+ klass->getClassLoaderInternal());
+ // FIXME: not correct: we should lazily do this when trying to
+ // read the element. This means that
+ // AnnotationInvocationHandler needs to have a special case.
+ if (! anno_class)
+ // FIXME: original exception...
+ throw new TypeNotPresentException(u_name->toString(), NULL);
+ result = anno_class;
+ }
+ break;
+ case '@':
+ result = parseAnnotation (klass, pool, bytes, last);
+ break;
+ case '[':
+ {
+ int n_array_elts = read_u2 (bytes, last);
+ jobjectArray aresult = _Jv_NewObjectArray (n_array_elts,
+ &Object::class$, NULL);
+ jobject *elts = elements (aresult);
+ for (int i = 0; i < n_array_elts; ++i)
+ elts[i] = parseAnnotationElement(klass, pool, bytes, last);
+ result = aresult;
+ }
+ break;
+ default:
+ throw new java::lang::InternalError();
+ }
+ return result;
+}
+
+static ::java::lang::annotation::Annotation *
+parseAnnotation(jclass klass, _Jv_Constants *pool,
+ unsigned char *&bytes, unsigned char *last)
+{
+ int type_index = read_u2 (bytes, last);
+ check_constant (pool, type_index, JV_CONSTANT_Utf8);
+
+ _Jv_Utf8Const *u_name = pool->data[type_index].utf8;
+ jclass anno_class = _Jv_FindClassFromSignatureNoException(u_name->chars(),
+ klass->getClassLoaderInternal());
+ // FIXME: what to do if anno_class==NULL?
+
+ ::java::util::HashMap *hmap = new ::java::util::HashMap();
+ int npairs = read_u2 (bytes, last);
+ for (int i = 0; i < npairs; ++i)
+ {
+ int name_index = read_u2 (bytes, last);
+ check_constant (pool, name_index, JV_CONSTANT_Utf8);
+ jstring name = _Jv_NewStringUtf8Const (pool->data[name_index].utf8);
+ jobject value = parseAnnotationElement (klass, pool, bytes, last);
+ // FIXME: any checks needed for name?
+ hmap->put(name, value);
+ }
+ using namespace ::sun::reflect::annotation;
+ return AnnotationInvocationHandler::create (anno_class,
+ (::java::util::Map *) hmap);
+}
+
+static jobjectArray
+parseAnnotations(jclass klass, _Jv_Constants *pool,
+ unsigned char *&bytes, unsigned char *last)
+{
+ int num = read_u2 (bytes, last);
+ jobjectArray result = _Jv_NewObjectArray (num,
+ &::java::lang::annotation::Annotation::class$,
+ NULL);
+ jobject *elts = elements (result);
+ for (int i = 0; i < num; ++i)
+ elts[i] = parseAnnotation(klass, pool, bytes, last);
+ return result;
+}
+
+static jobjectArray
+parseParameterAnnotations(jclass klass, _Jv_Constants *pool,
+ unsigned char *&bytes, unsigned char *last)
+{
+ jclass anno = &::java::lang::annotation::Annotation::class$;
+ jclass annoary = _Jv_GetArrayClass (anno, anno->getClassLoaderInternal());
+
+ // FIXME: something should check the number of params versus the
+ // method
+ int n_params = read_u1 (bytes, last);
+ jobjectArray result = _Jv_NewObjectArray (n_params, annoary, NULL);
+ jobject *elts = elements (result);
+ for (int i = 0; i < n_params; ++i)
+ elts[i] = parseAnnotations(klass, pool, bytes, last);
+ return result;
+}
+
+jobject
+java::lang::Class::getMethodDefaultValue(::java::lang::reflect::Method *meth)
+{
+ // FIXME: could cache the value here...
+
+ unsigned char *bytes = reflection_data;
+ if (bytes == NULL)
+ return 0;
+
+ unsigned short meth_index = _Jv_FromReflectedMethod (meth) - methods;
+
+ while (true)
+ {
+ int type = read_u1 (bytes);
+ if (type == JV_DONE_ATTR)
+ return NULL;
+ int len = read_4 (bytes);
+ unsigned char *next = bytes + len;
+ if (type != JV_METHOD_ATTR)
+ {
+ bytes = next;
+ continue;
+ }
+ int kind = read_u1 (bytes, next);
+ if (kind != JV_ANNOTATION_DEFAULT_KIND)
+ {
+ bytes = next;
+ continue;
+ }
+ int index = read_u2 (bytes, next);
+ if (meth_index != index)
+ {
+ bytes = next;
+ continue;
+ }
+
+ // FIXME: could cache here. If we do then we have to clone any
+ // array result.
+ return parseAnnotationElement(this, &this->constants, bytes, next);
+ }
+}
+
+jobjectArray
+java::lang::Class::getDeclaredAnnotations(jint /* jv_attr_type */ member_type,
+ jint member_index,
+ jint /* jv_attr_kind */ kind_req)
+{
+ using namespace java::lang::annotation;
+ jobjectArray result;
+
+ unsigned char *bytes = reflection_data;
+ if (bytes == NULL)
+ return 0;
+
+ if (loader == NULL)
+ loader = (ClassLoader *)VMClassLoader::bootLoader;
+
+ result = (loader->getDeclaredAnnotations
+ (this, member_type, member_index, kind_req));
+ if (result)
+ return result;
+
+ for (;;)
+ {
+ int type = read_u1 (bytes);
+ if (type == JV_DONE_ATTR)
+ return NULL;
+ int len = read_4 (bytes);
+ unsigned char *next = bytes + len;
+ if (type != member_type)
+ {
+ bytes = next;
+ continue;
+ }
+ int kind = read_u1 (bytes, next);
+ if (kind != kind_req)
+ {
+ bytes = next;
+ continue;
+ }
+ if (member_type != JV_CLASS_ATTR)
+ {
+ int index = read_u2 (bytes, next);
+ if (member_index != index)
+ {
+ bytes = next;
+ continue;
+ }
+ }
+
+ if (kind_req == JV_PARAMETER_ANNOTATIONS_KIND)
+ result = ((parseParameterAnnotations
+ (this, &this->constants, bytes, next)));
+ else
+ result = ((parseAnnotations (this, &this->constants, bytes, next)));
+ break;
+ }
+
+ return (loader->putDeclaredAnnotations
+ (this, member_type, member_index, kind_req, result));
+}
+
+jobjectArray
+java::lang::Class::getDeclaredAnnotations(::java::lang::reflect::Method *meth,
+ jboolean is_param)
+{
+ unsigned short meth_index = _Jv_FromReflectedMethod (meth) - methods;
+ return getDeclaredAnnotations(JV_METHOD_ATTR, meth_index,
+ (is_param
+ ? JV_PARAMETER_ANNOTATIONS_KIND
+ : JV_ANNOTATIONS_KIND));
+}
+
+jobjectArray
+java::lang::Class::getDeclaredAnnotations(::java::lang::reflect::Constructor *cons,
+ jboolean is_param)
+{
+ unsigned short meth_index = _Jv_FromReflectedConstructor (cons) - methods;
+ return getDeclaredAnnotations(JV_METHOD_ATTR, meth_index,
+ (is_param
+ ? JV_PARAMETER_ANNOTATIONS_KIND
+ : JV_ANNOTATIONS_KIND));
+}
+
+jobjectArray
+java::lang::Class::getDeclaredAnnotations(::java::lang::reflect::Field *fld)
+{
+ unsigned short field_index = _Jv_FromReflectedField (fld) - fields;
+ return getDeclaredAnnotations(JV_FIELD_ATTR, field_index,
+ JV_ANNOTATIONS_KIND);
+}
+
+JArray< ::java::lang::annotation::Annotation *> *
+java::lang::Class::getDeclaredAnnotationsInternal()
+{
+ return (JArray< ::java::lang::annotation::Annotation *> *) getDeclaredAnnotations(JV_CLASS_ATTR, 0, JV_ANNOTATIONS_KIND);
+}
+
+static jclass
+resolve_class_constant (jclass klass, _Jv_Constants *pool, int cpool_index)
+{
+ check_constant (pool, cpool_index, JV_CONSTANT_Class);
+ // FIXME: what is the correct thing to do with an exception here?
+ return _Jv_Linker::resolve_pool_entry (klass, cpool_index, false).clazz;
+}
+
+jint
+java::lang::Class::findInnerClassAttribute()
+{
+ unsigned char *bytes = reflection_data;
+ if (bytes == NULL)
+ return -1;
+ while (true)
+ {
+ int type = read_u1 (bytes);
+ if (type == JV_DONE_ATTR)
+ break;
+ // After the type but before the length.
+ unsigned char *save = bytes;
+ int len = read_4 (bytes);
+ unsigned char *next = bytes + len;
+ if (type != JV_CLASS_ATTR)
+ {
+ bytes = next;
+ continue;
+ }
+ int kind = read_u1 (bytes, next);
+ if (kind != JV_INNER_CLASSES_KIND)
+ {
+ bytes = next;
+ continue;
+ }
+ return save - reflection_data;
+ }
+ return -1;
+}
+
+jint
+java::lang::Class::findDeclaredClasses(JArray<jclass> *result,
+ jboolean publicOnly,
+ jint offset)
+{
+ unsigned char *bytes = reflection_data + offset;
+ int len = read_4 (bytes);
+ unsigned char *next = bytes + len;
+ // Skip a byte.
+ read_u1 (bytes, next);
+ int n_classes = read_u2 (bytes, next);
+ int count = 0;
+ for (int i = 0; i < n_classes; ++i)
+ {
+ int inner_class_index = read_u2 (bytes, next);
+ int outer_class_index = read_u2 (bytes, next);
+ /*int inner_name_index = */ read_u2 (bytes, next);
+ int inner_flags = read_u2 (bytes, next);
+
+ if (inner_class_index == 0 || outer_class_index == 0)
+ continue;
+ if (resolve_class_constant (this, &constants, outer_class_index) == this)
+ {
+ jclass inner = resolve_class_constant (this, &constants,
+ inner_class_index);
+ if (! publicOnly
+ || ((inner_flags
+ & java::lang::reflect::Modifier::PUBLIC) != 0))
+ {
+ if (result)
+ {
+ jclass *elts = elements (result);
+ elts[count] = inner;
+ }
+ ++count;
+ }
+ }
+ }
+
+ return count;
+}
+
+JArray<jclass> *
+java::lang::Class::getDeclaredClasses (jboolean publicOnly)
+{
+ int offset = findInnerClassAttribute();
+ int count;
+ if (offset == -1)
+ {
+ // No InnerClasses attribute, so no declared classes.
+ count = 0;
+ }
+ else
+ count = findDeclaredClasses(NULL, publicOnly, offset);
+ JArray<jclass> *result
+ = (JArray<jclass> *) JvNewObjectArray (count, &java::lang::Class::class$,
+ NULL);
+ if (count > 0)
+ findDeclaredClasses(result, publicOnly, offset);
+ return result;
+}
+
+jclass
+java::lang::Class::getDeclaringClass (void)
+{
+ int offset = findInnerClassAttribute();
+ if (offset == -1)
+ return NULL;
+
+ unsigned char *bytes = reflection_data + offset;
+ int len = read_4 (bytes);
+ unsigned char *next = bytes + len;
+ // Skip a byte.
+ read_u1 (bytes, next);
+ int n_classes = read_u2 (bytes, next);
+ for (int i = 0; i < n_classes; ++i)
+ {
+ int inner_class_index = read_u2 (bytes, next);
+ int outer_class_index = read_u2 (bytes, next);
+ /*int inner_name_index = */read_u2 (bytes, next);
+ /*int inner_flags = */read_u2 (bytes, next);
+
+ if (inner_class_index == 0 || outer_class_index == 0)
+ continue;
+ if (resolve_class_constant (this, &constants, inner_class_index) == this)
+ return resolve_class_constant (this, &constants, outer_class_index);
+ }
+
+ return NULL;
+}
+
+jboolean
+java::lang::Class::isAnonymousClass()
+{
+ int offset = findInnerClassAttribute();
+ if (offset == -1)
+ return false;
+
+ unsigned char *bytes = reflection_data + offset;
+ int len = read_4 (bytes);
+ unsigned char *next = bytes + len;
+ // Skip a byte.
+ read_u1 (bytes, next);
+ int n_classes = read_u2 (bytes, next);
+ for (int i = 0; i < n_classes; ++i)
+ {
+ int inner_class_index = read_u2 (bytes, next);
+ /*int outer_class_index = */read_u2 (bytes, next);
+ int inner_name_index = read_u2 (bytes, next);
+ /*int inner_flags = */read_u2 (bytes, next);
+
+ if (inner_class_index == 0)
+ continue;
+ if (resolve_class_constant (this, &constants, inner_class_index) == this)
+ return inner_name_index == 0;
+ }
+
+ return false;
+}
+
+jboolean
+java::lang::Class::isLocalClass()
+{
+ _Jv_word indexes;
+ indexes.i = getEnclosingMethodData();
+ return indexes.i != 0;
+}
+
+jboolean
+java::lang::Class::isMemberClass()
+{
+ // FIXME: is this correct?
+ return !isLocalClass() && getDeclaringClass() != NULL;
+}
+
+\f
+
//
// Some class-related convenience functions.
//
return NULL;
}
+#ifdef HAVE_TLS
+
// NOTE: MCACHE_SIZE should be a power of 2 minus one.
-#define MCACHE_SIZE 1023
+#define MCACHE_SIZE 31
struct _Jv_mcache
{
_Jv_Method *method;
};
-static _Jv_mcache method_cache[MCACHE_SIZE + 1];
+static __thread _Jv_mcache *method_cache;
+#endif // HAVE_TLS
static void *
-_Jv_FindMethodInCache (jclass klass,
- _Jv_Utf8Const *name,
- _Jv_Utf8Const *signature)
-{
- int index = name->hash16 () & MCACHE_SIZE;
- _Jv_mcache *mc = method_cache + index;
- _Jv_Method *m = mc->method;
-
- if (mc->klass == klass
- && m != NULL // thread safe check
- && _Jv_equalUtf8Consts (m->name, name)
- && _Jv_equalUtf8Consts (m->signature, signature))
- return mc->method->ncode;
+_Jv_FindMethodInCache (jclass klass MAYBE_UNUSED,
+ _Jv_Utf8Const *name MAYBE_UNUSED,
+ _Jv_Utf8Const *signature MAYBE_UNUSED)
+{
+#ifdef HAVE_TLS
+ _Jv_mcache *cache = method_cache;
+ if (cache)
+ {
+ int index = name->hash16 () & MCACHE_SIZE;
+ _Jv_mcache *mc = &cache[index];
+ _Jv_Method *m = mc->method;
+
+ if (mc->klass == klass
+ && _Jv_equalUtf8Consts (m->name, name)
+ && _Jv_equalUtf8Consts (m->signature, signature))
+ return mc->method->ncode;
+ }
+#endif // HAVE_TLS
return NULL;
}
static void
-_Jv_AddMethodToCache (jclass klass,
- _Jv_Method *method)
+_Jv_AddMethodToCache (jclass klass MAYBE_UNUSED,
+ _Jv_Method *method MAYBE_UNUSED)
{
- _Jv_MonitorEnter (&java::lang::Class::class$);
-
- int index = method->name->hash16 () & MCACHE_SIZE;
-
- method_cache[index].method = method;
- method_cache[index].klass = klass;
+#ifdef HAVE_TLS
+ if (method_cache == NULL)
+ method_cache = (_Jv_mcache *) _Jv_MallocUnchecked((MCACHE_SIZE + 1)
+ * sizeof (_Jv_mcache));
+ // If the allocation failed, just keep going.
+ if (method_cache != NULL)
+ {
+ int index = method->name->hash16 () & MCACHE_SIZE;
+ method_cache[index].method = method;
+ method_cache[index].klass = klass;
+ }
+#endif // HAVE_TLS
+}
- _Jv_MonitorExit (&java::lang::Class::class$);
+// Free this thread's method cache. We explicitly manage this memory
+// as the GC does not yet know how to scan TLS on all platforms.
+void
+_Jv_FreeMethodCache ()
+{
+#ifdef HAVE_TLS
+ if (method_cache != NULL)
+ {
+ _Jv_Free(method_cache);
+ method_cache = NULL;
+ }
+#endif // HAVE_TLS
}
void *
_Jv_LookupInterfaceMethodIdx (jclass klass, jclass iface, int method_idx)
{
_Jv_IDispatchTable *cldt = klass->idt;
- int idx = iface->idt->iface.ioffsets[cldt->cls.iindex] + method_idx;
- return cldt->cls.itable[idx];
+ int idx = iface->ioffsets[cldt->iindex] + method_idx;
+ return cldt->itable[idx];
}
jboolean
-_Jv_IsAssignableFrom (jclass target, jclass source)
+_Jv_IsAssignableFrom (jclass source, jclass target)
{
if (source == target)
return true;
// two interfaces for assignability.
if (__builtin_expect
(source->idt == NULL || source->isInterface(), false))
- return _Jv_InterfaceAssignableFrom (target, source);
+ return _Jv_InterfaceAssignableFrom (source, target);
_Jv_IDispatchTable *cl_idt = source->idt;
- _Jv_IDispatchTable *if_idt = target->idt;
- if (__builtin_expect ((if_idt == NULL), false))
+ if (__builtin_expect ((target->ioffsets == NULL), false))
return false; // No class implementing TARGET has been loaded.
- jshort cl_iindex = cl_idt->cls.iindex;
- if (cl_iindex < if_idt->iface.ioffsets[0])
+ jshort cl_iindex = cl_idt->iindex;
+ if (cl_iindex < target->ioffsets[0])
{
- jshort offset = if_idt->iface.ioffsets[cl_iindex];
- if (offset != -1 && offset < cl_idt->cls.itable_length
- && cl_idt->cls.itable[offset] == target)
+ jshort offset = target->ioffsets[cl_iindex];
+ if (offset != -1 && offset < cl_idt->itable_length
+ && cl_idt->itable[offset] == target)
return true;
}
return false;
// superinterface of SOURCE. This is used when SOURCE is also an interface,
// or a class with no interface dispatch table.
jboolean
-_Jv_InterfaceAssignableFrom (jclass iface, jclass source)
+_Jv_InterfaceAssignableFrom (jclass source, jclass iface)
{
for (int i = 0; i < source->interface_count; i++)
{
jclass interface = source->interfaces[i];
if (iface == interface
- || _Jv_InterfaceAssignableFrom (iface, interface))
+ || _Jv_InterfaceAssignableFrom (interface, iface))
return true;
}
if (!source->isInterface()
&& source->superclass
- && _Jv_InterfaceAssignableFrom (iface, source->superclass))
+ && _Jv_InterfaceAssignableFrom (source->superclass, iface))
return true;
return false;
{
if (__builtin_expect (!obj, false))
return false;
- return (_Jv_IsAssignableFrom (cl, JV_CLASS (obj)));
+ return _Jv_IsAssignableFrom (JV_CLASS (obj), cl);
}
void *
_Jv_CheckCast (jclass c, jobject obj)
{
if (__builtin_expect
- (obj != NULL && ! _Jv_IsAssignableFrom(c, JV_CLASS (obj)), false))
+ (obj != NULL && ! _Jv_IsAssignableFrom(JV_CLASS (obj), c), false))
throw new java::lang::ClassCastException
((new java::lang::StringBuffer
(obj->getClass()->getName()))->append
return;
jclass obj_class = JV_CLASS (obj);
if (__builtin_expect
- (! _Jv_IsAssignableFrom (elt_class, obj_class), false))
+ (! _Jv_IsAssignableFrom (obj_class, elt_class), false))
throw new java::lang::ArrayStoreException
((new java::lang::StringBuffer
(JvNewStringUTF("Cannot store ")))->append
}
jboolean
-_Jv_IsAssignableFromSlow (jclass target, jclass source)
+_Jv_IsAssignableFromSlow (jclass source, jclass target)
{
// First, strip arrays.
while (target->isArray ())
{
// We use a recursive call because we also need to
// check superinterfaces.
- if (_Jv_IsAssignableFromSlow (target, source->getInterface (i)))
+ if (_Jv_IsAssignableFromSlow (source->getInterface (i), target))
return true;
}
}
if (!klass->isInterface ())
return false;
- int i = klass->method_count;
- while (--i >= 0)
+ int max = klass->method_count;
+ int offset = 0;
+ for (int i = 0; i < max; ++i)
{
+ // Skip <clinit> here, as it will not be in the IDT.
+ if (klass->methods[i].name->first() == '<')
+ continue;
+
if (_Jv_equalUtf8Consts (klass->methods[i].name, utf_name)
&& _Jv_equalUtf8Consts (klass->methods[i].signature, utf_sig))
{
found_class = klass;
// Interface method indexes count from 1.
- index = i+1;
+ index = offset + 1;
return true;
}
+
+ ++offset;
}
}
{
using namespace java::lang::reflect;
bool found = _Jv_getInterfaceMethod (search_class->interfaces[i],
- found_class, index,
- utf_name, utf_sig);
+ found_class, index,
+ utf_name, utf_sig);
if (found)
return true;
}
return false;
}
+
+#ifdef INTERPRETER
+_Jv_MethodBase *
+_Jv_FindInterpreterMethod (jclass klass, jmethodID desired_method)
+{
+ using namespace java::lang::reflect;
+
+ _Jv_InterpClass *iclass
+ = reinterpret_cast<_Jv_InterpClass *> (klass->aux_info);
+ _Jv_MethodBase **imethods = _Jv_GetFirstMethod (iclass);
+
+ for (int i = 0; i < JvNumMethods (klass); ++i)
+ {
+ _Jv_MethodBase *imeth = imethods[i];
+ if (imeth->get_method () == desired_method)
+ return imeth;
+ }
+
+ return NULL;
+}
+#endif
+
+// Return Utf8 name of a class. This function is here for code that
+// can't access klass->name directly.
+_Jv_Utf8Const*
+_Jv_GetClassNameUtf8 (jclass klass)
+{
+ return klass->name;
+}
+
+jclass
+_Jv_GetMethodDeclaringClass (jmethodID method)
+{
+ _Jv_StackTrace::UpdateNCodeMap ();
+ jobject obj = reinterpret_cast<jobject> (method->ncode);
+ return reinterpret_cast<jclass> (_Jv_StackTrace::ncodeMap->get (obj));
+}
+
+jbyte
+_Jv_GetClassState (jclass klass)
+{
+ return klass->state;
+}
+
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