// jni.cc - JNI implementation, including the jump table.
-/* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation
+/* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+ Free Software Foundation
This file is part of libgcj.
#include <config.h>
+#include <stdio.h>
#include <stddef.h>
#include <string.h>
#include <java/lang/Throwable.h>
#include <java/lang/ArrayIndexOutOfBoundsException.h>
#include <java/lang/StringIndexOutOfBoundsException.h>
+#include <java/lang/StringBuffer.h>
#include <java/lang/UnsatisfiedLinkError.h>
#include <java/lang/InstantiationException.h>
#include <java/lang/NoSuchFieldError.h>
#include <java/lang/reflect/Method.h>
#include <java/lang/reflect/Modifier.h>
#include <java/lang/OutOfMemoryError.h>
-#include <java/util/IdentityHashMap.h>
#include <java/lang/Integer.h>
#include <java/lang/ThreadGroup.h>
#include <java/lang/Thread.h>
+#include <java/lang/IllegalAccessError.h>
+#include <java/nio/Buffer.h>
+#include <java/nio/DirectByteBufferImpl.h>
+#include <java/nio/DirectByteBufferImpl$ReadWrite.h>
+#include <java/util/IdentityHashMap.h>
+#include <gnu/gcj/RawData.h>
+#include <java/lang/ClassNotFoundException.h>
#include <gcj/method.h>
#include <gcj/field.h>
// Number of slots in the default frame. The VM must allow at least
// 16.
-#define FRAME_SIZE 32
+#define FRAME_SIZE 16
// Mark value indicating this is an overflow frame.
#define MARK_NONE 0
{
// This is true if this frame object represents a pushed frame (eg
// from PushLocalFrame).
- int marker : 2;
+ int marker;
+
+ // Flag to indicate some locals were allocated.
+ int allocated_p;
// Number of elements in frame.
- int size : 30;
+ int size;
// Next frame in chain.
_Jv_JNI_LocalFrame *next;
return reinterpret_cast<T *> (wr->get ());
}
+jobject
+_Jv_UnwrapJNIweakReference (jobject obj)
+{
+ return unwrap (obj);
+}
+
\f
-static jobject
-(JNICALL _Jv_JNI_NewGlobalRef) (JNIEnv *, jobject obj)
+static jobject JNICALL
+_Jv_JNI_NewGlobalRef (JNIEnv *, jobject obj)
{
// This seems weird but I think it is correct.
obj = unwrap (obj);
return obj;
}
-static void
-(JNICALL _Jv_JNI_DeleteGlobalRef) (JNIEnv *, jobject obj)
+static void JNICALL
+_Jv_JNI_DeleteGlobalRef (JNIEnv *, jobject obj)
{
// This seems weird but I think it is correct.
obj = unwrap (obj);
unmark_for_gc (obj, global_ref_table);
}
-static void
-(JNICALL _Jv_JNI_DeleteLocalRef) (JNIEnv *env, jobject obj)
+static void JNICALL
+_Jv_JNI_DeleteLocalRef (JNIEnv *env, jobject obj)
{
_Jv_JNI_LocalFrame *frame;
JvAssert (0);
}
-static jint
-(JNICALL _Jv_JNI_EnsureLocalCapacity) (JNIEnv *env, jint size)
+static jint JNICALL
+_Jv_JNI_EnsureLocalCapacity (JNIEnv *env, jint size)
{
// It is easier to just always allocate a new frame of the requested
// size. This isn't the most efficient thing, but for now we don't
frame->marker = MARK_NONE;
frame->size = size;
+ frame->allocated_p = 0;
memset (&frame->vec[0], 0, size * sizeof (jobject));
frame->next = env->locals;
env->locals = frame;
return 0;
}
-static jint
-(JNICALL _Jv_JNI_PushLocalFrame) (JNIEnv *env, jint size)
+static jint JNICALL
+_Jv_JNI_PushLocalFrame (JNIEnv *env, jint size)
{
jint r = _Jv_JNI_EnsureLocalCapacity (env, size);
if (r < 0)
return 0;
}
-static jobject
-(JNICALL _Jv_JNI_NewLocalRef) (JNIEnv *env, jobject obj)
+static jobject JNICALL
+_Jv_JNI_NewLocalRef (JNIEnv *env, jobject obj)
{
// This seems weird but I think it is correct.
obj = unwrap (obj);
set = true;
done = true;
frame->vec[i] = obj;
+ frame->allocated_p = 1;
break;
}
}
_Jv_JNI_EnsureLocalCapacity (env, 16);
// We know the first element of the new frame will be ok.
env->locals->vec[0] = obj;
+ env->locals->allocated_p = 1;
}
mark_for_gc (obj, local_ref_table);
return obj;
}
-static jobject
-(JNICALL _Jv_JNI_PopLocalFrame) (JNIEnv *env, jobject result, int stop)
+static jobject JNICALL
+_Jv_JNI_PopLocalFrame (JNIEnv *env, jobject result, int stop)
{
_Jv_JNI_LocalFrame *rf = env->locals;
done = (rf->marker == stop);
_Jv_JNI_LocalFrame *n = rf->next;
- // When N==NULL, we've reached the stack-allocated frame, and we
- // must not free it. However, we must be sure to clear all its
- // elements, since we might conceivably reuse it.
+ // When N==NULL, we've reached the reusable bottom_locals, and we must
+ // not free it. However, we must be sure to clear all its elements.
if (n == NULL)
{
- memset (&rf->vec[0], 0, rf->size * sizeof (jobject));
+ if (rf->allocated_p)
+ memset (&rf->vec[0], 0, rf->size * sizeof (jobject));
+ rf->allocated_p = 0;
+ rf = NULL;
break;
}
return result == NULL ? NULL : _Jv_JNI_NewLocalRef (env, result);
}
-static jobject
-(JNICALL _Jv_JNI_PopLocalFrame) (JNIEnv *env, jobject result)
+static jobject JNICALL
+_Jv_JNI_PopLocalFrame (JNIEnv *env, jobject result)
{
return _Jv_JNI_PopLocalFrame (env, result, MARK_USER);
}
+// Make sure an array's type is compatible with the type of the
+// destination.
+template<typename T>
+static bool
+_Jv_JNI_check_types (JNIEnv *env, JArray<T> *array, jclass K)
+{
+ jclass klass = array->getClass()->getComponentType();
+ if (__builtin_expect (klass != K, false))
+ {
+ env->ex = new java::lang::IllegalAccessError ();
+ return false;
+ }
+ else
+ return true;
+}
+
// Pop a `system' frame from the stack. This is `extern "C"' as it is
// used by the compiler.
extern "C" void
_Jv_JNI_PopSystemFrame (JNIEnv *env)
{
- _Jv_JNI_PopLocalFrame (env, NULL, MARK_SYSTEM);
+ // Only enter slow path when we're not at the bottom, or there have been
+ // allocations. Usually this is false and we can just null out the locals
+ // field.
- if (env->ex)
+ if (__builtin_expect ((env->locals->next
+ || env->locals->allocated_p), false))
+ _Jv_JNI_PopLocalFrame (env, NULL, MARK_SYSTEM);
+ else
+ env->locals = NULL;
+
+ if (__builtin_expect (env->ex != NULL, false))
{
jthrowable t = env->ex;
env->ex = NULL;
}
}
+template<typename T> T extract_from_jvalue(jvalue const & t);
+template<> jboolean extract_from_jvalue(jvalue const & jv) { return jv.z; }
+template<> jbyte extract_from_jvalue(jvalue const & jv) { return jv.b; }
+template<> jchar extract_from_jvalue(jvalue const & jv) { return jv.c; }
+template<> jshort extract_from_jvalue(jvalue const & jv) { return jv.s; }
+template<> jint extract_from_jvalue(jvalue const & jv) { return jv.i; }
+template<> jlong extract_from_jvalue(jvalue const & jv) { return jv.j; }
+template<> jfloat extract_from_jvalue(jvalue const & jv) { return jv.f; }
+template<> jdouble extract_from_jvalue(jvalue const & jv) { return jv.d; }
+template<> jobject extract_from_jvalue(jvalue const & jv) { return jv.l; }
+
+
// This function is used from other template functions. It wraps the
// return value appropriately; we specialize it so that object returns
// are turned into local references.
// This specialization is used for jobject, jclass, jstring, jarray,
// etc.
-template<typename T>
+template<typename R, typename T>
static T *
wrap_value (JNIEnv *env, T *value)
{
\f
-static jint
-(JNICALL _Jv_JNI_GetVersion) (JNIEnv *)
+static jint JNICALL
+_Jv_JNI_GetVersion (JNIEnv *)
{
return JNI_VERSION_1_4;
}
-static jclass
-(JNICALL _Jv_JNI_DefineClass) (JNIEnv *env, const char *name, jobject loader,
- const jbyte *buf, jsize bufLen)
+static jclass JNICALL
+_Jv_JNI_DefineClass (JNIEnv *env, const char *name, jobject loader,
+ const jbyte *buf, jsize bufLen)
{
try
{
}
}
-static jclass
-(JNICALL _Jv_JNI_FindClass) (JNIEnv *env, const char *name)
+static jclass JNICALL
+_Jv_JNI_FindClass (JNIEnv *env, const char *name)
{
// FIXME: assume that NAME isn't too long.
int len = strlen (name);
java::lang::ClassLoader *loader = NULL;
if (env->klass != NULL)
- loader = env->klass->getClassLoader ();
+ loader = env->klass->getClassLoaderInternal ();
if (loader == NULL)
{
return (jclass) wrap_value (env, r);
}
-static jclass
-(JNICALL _Jv_JNI_GetSuperclass) (JNIEnv *env, jclass clazz)
+static jclass JNICALL
+_Jv_JNI_GetSuperclass (JNIEnv *env, jclass clazz)
{
return (jclass) wrap_value (env, unwrap (clazz)->getSuperclass ());
}
-static jboolean
-(JNICALL _Jv_JNI_IsAssignableFrom) (JNIEnv *, jclass clazz1, jclass clazz2)
+static jboolean JNICALL
+_Jv_JNI_IsAssignableFrom (JNIEnv *, jclass clazz1, jclass clazz2)
{
- return unwrap (clazz1)->isAssignableFrom (unwrap (clazz2));
+ return unwrap (clazz2)->isAssignableFrom (unwrap (clazz1));
}
-static jint
-(JNICALL _Jv_JNI_Throw) (JNIEnv *env, jthrowable obj)
+static jint JNICALL
+_Jv_JNI_Throw (JNIEnv *env, jthrowable obj)
{
// We check in case the user did some funky cast.
obj = unwrap (obj);
return 0;
}
-static jint
-(JNICALL _Jv_JNI_ThrowNew) (JNIEnv *env, jclass clazz, const char *message)
+static jint JNICALL
+_Jv_JNI_ThrowNew (JNIEnv *env, jclass clazz, const char *message)
{
using namespace java::lang::reflect;
NULL);
jclass *elts = elements (argtypes);
- elts[0] = &StringClass;
+ elts[0] = &java::lang::String::class$;
Constructor *cons = clazz->getConstructor (argtypes);
- jobjectArray values = JvNewObjectArray (1, &StringClass, NULL);
+ jobjectArray values = JvNewObjectArray (1, &java::lang::String::class$,
+ NULL);
jobject *velts = elements (values);
velts[0] = JvNewStringUTF (message);
return r;
}
-static jthrowable
-(JNICALL _Jv_JNI_ExceptionOccurred) (JNIEnv *env)
+static jthrowable JNICALL
+_Jv_JNI_ExceptionOccurred (JNIEnv *env)
{
return (jthrowable) wrap_value (env, env->ex);
}
-static void
-(JNICALL _Jv_JNI_ExceptionDescribe) (JNIEnv *env)
+static void JNICALL
+_Jv_JNI_ExceptionDescribe (JNIEnv *env)
{
if (env->ex != NULL)
env->ex->printStackTrace();
}
-static void
-(JNICALL _Jv_JNI_ExceptionClear) (JNIEnv *env)
+static void JNICALL
+_Jv_JNI_ExceptionClear (JNIEnv *env)
{
env->ex = NULL;
}
-static jboolean
-(JNICALL _Jv_JNI_ExceptionCheck) (JNIEnv *env)
+static jboolean JNICALL
+_Jv_JNI_ExceptionCheck (JNIEnv *env)
{
return env->ex != NULL;
}
-static void
-(JNICALL _Jv_JNI_FatalError) (JNIEnv *, const char *message)
+static void JNICALL
+_Jv_JNI_FatalError (JNIEnv *, const char *message)
{
JvFail (message);
}
\f
-static jboolean
-(JNICALL _Jv_JNI_IsSameObject) (JNIEnv *, jobject obj1, jobject obj2)
+static jboolean JNICALL
+_Jv_JNI_IsSameObject (JNIEnv *, jobject obj1, jobject obj2)
{
return unwrap (obj1) == unwrap (obj2);
}
-static jobject
-(JNICALL _Jv_JNI_AllocObject) (JNIEnv *env, jclass clazz)
+static jobject JNICALL
+_Jv_JNI_AllocObject (JNIEnv *env, jclass clazz)
{
jobject obj = NULL;
using namespace java::lang::reflect;
if (clazz->isInterface() || Modifier::isAbstract(clazz->getModifiers()))
env->ex = new java::lang::InstantiationException ();
else
- obj = JvAllocObject (clazz);
+ obj = _Jv_AllocObject (clazz);
}
catch (jthrowable t)
{
return wrap_value (env, obj);
}
-static jclass
-(JNICALL _Jv_JNI_GetObjectClass) (JNIEnv *env, jobject obj)
+static jclass JNICALL
+_Jv_JNI_GetObjectClass (JNIEnv *env, jobject obj)
{
obj = unwrap (obj);
JvAssert (obj);
return (jclass) wrap_value (env, obj->getClass());
}
-static jboolean
-(JNICALL _Jv_JNI_IsInstanceOf) (JNIEnv *, jobject obj, jclass clazz)
+static jboolean JNICALL
+_Jv_JNI_IsInstanceOf (JNIEnv *, jobject obj, jclass clazz)
{
return unwrap (clazz)->isInstance(unwrap (obj));
}
//
template<jboolean is_static>
-static jmethodID
-(JNICALL _Jv_JNI_GetAnyMethodID) (JNIEnv *env, jclass clazz,
- const char *name, const char *sig)
+static jmethodID JNICALL
+_Jv_JNI_GetAnyMethodID (JNIEnv *env, jclass clazz,
+ const char *name, const char *sig)
{
try
{
clazz = clazz->getSuperclass ();
}
- env->ex = new java::lang::NoSuchMethodError ();
+ java::lang::StringBuffer *name_sig =
+ new java::lang::StringBuffer (JvNewStringUTF (name));
+ name_sig->append ((jchar) ' ')->append (JvNewStringUTF (s));
+ env->ex = new java::lang::NoSuchMethodError (name_sig->toString ());
}
catch (jthrowable t)
{
// This can call any sort of method: virtual, "nonvirtual", static, or
// constructor.
template<typename T, invocation_type style>
-static T
-(JNICALL _Jv_JNI_CallAnyMethodV) (JNIEnv *env, jobject obj, jclass klass,
- jmethodID id, va_list vargs)
+static T JNICALL
+_Jv_JNI_CallAnyMethodV (JNIEnv *env, jobject obj, jclass klass,
+ jmethodID id, va_list vargs)
{
obj = unwrap (obj);
klass = unwrap (klass);
- if (style == normal)
- id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
-
jclass decl_class = klass ? klass : obj->getClass ();
JvAssert (decl_class != NULL);
return_type = klass;
jvalue result;
- jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
- style == constructor,
- arg_types, args, &result);
-
- if (ex != NULL)
- env->ex = ex;
+ _Jv_CallAnyMethodA (obj, return_type, id,
+ style == constructor,
+ style == normal,
+ arg_types, args, &result);
- // We cheat a little here. FIXME.
- return wrap_value (env, * (T *) &result);
+ return wrap_value (env, extract_from_jvalue<T>(result));
}
catch (jthrowable t)
{
}
template<typename T, invocation_type style>
-static T
-(JNICALL _Jv_JNI_CallAnyMethod) (JNIEnv *env, jobject obj, jclass klass,
- jmethodID method, ...)
+static T JNICALL
+_Jv_JNI_CallAnyMethod (JNIEnv *env, jobject obj, jclass klass,
+ jmethodID method, ...)
{
va_list args;
T result;
}
template<typename T, invocation_type style>
-static T
-(JNICALL _Jv_JNI_CallAnyMethodA) (JNIEnv *env, jobject obj, jclass klass,
- jmethodID id, jvalue *args)
+static T JNICALL
+_Jv_JNI_CallAnyMethodA (JNIEnv *env, jobject obj, jclass klass,
+ jmethodID id, jvalue *args)
{
obj = unwrap (obj);
klass = unwrap (klass);
- if (style == normal)
- id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
-
jclass decl_class = klass ? klass : obj->getClass ();
JvAssert (decl_class != NULL);
}
jvalue result;
- jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
- style == constructor,
- arg_types, arg_copy, &result);
+ _Jv_CallAnyMethodA (obj, return_type, id,
+ style == constructor,
+ style == normal,
+ arg_types, arg_copy, &result);
- if (ex != NULL)
- env->ex = ex;
-
- // We cheat a little here. FIXME.
- return wrap_value (env, * (T *) &result);
+ return wrap_value (env, extract_from_jvalue<T>(result));
}
catch (jthrowable t)
{
}
template<invocation_type style>
-static void
-(JNICALL _Jv_JNI_CallAnyVoidMethodV) (JNIEnv *env, jobject obj, jclass klass,
- jmethodID id, va_list vargs)
+static void JNICALL
+_Jv_JNI_CallAnyVoidMethodV (JNIEnv *env, jobject obj, jclass klass,
+ jmethodID id, va_list vargs)
{
obj = unwrap (obj);
klass = unwrap (klass);
- if (style == normal)
- id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
-
jclass decl_class = klass ? klass : obj->getClass ();
JvAssert (decl_class != NULL);
if (style == constructor)
return_type = klass;
- jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
- style == constructor,
- arg_types, args, NULL);
-
- if (ex != NULL)
- env->ex = ex;
+ _Jv_CallAnyMethodA (obj, return_type, id,
+ style == constructor,
+ style == normal,
+ arg_types, args, NULL);
}
catch (jthrowable t)
{
}
template<invocation_type style>
-static void
-(JNICALL _Jv_JNI_CallAnyVoidMethod) (JNIEnv *env, jobject obj, jclass klass,
- jmethodID method, ...)
+static void JNICALL
+_Jv_JNI_CallAnyVoidMethod (JNIEnv *env, jobject obj, jclass klass,
+ jmethodID method, ...)
{
va_list args;
}
template<invocation_type style>
-static void
-(JNICALL _Jv_JNI_CallAnyVoidMethodA) (JNIEnv *env, jobject obj, jclass klass,
- jmethodID id, jvalue *args)
+static void JNICALL
+_Jv_JNI_CallAnyVoidMethodA (JNIEnv *env, jobject obj, jclass klass,
+ jmethodID id, jvalue *args)
{
- if (style == normal)
- id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
-
jclass decl_class = klass ? klass : obj->getClass ();
JvAssert (decl_class != NULL);
arg_copy[i].l = unwrap (args[i].l);
}
- jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
- style == constructor,
- arg_types, args, NULL);
-
- if (ex != NULL)
- env->ex = ex;
+ _Jv_CallAnyMethodA (obj, return_type, id,
+ style == constructor,
+ style == normal,
+ arg_types, args, NULL);
}
catch (jthrowable t)
{
// Functions with this signature are used to implement functions in
// the CallMethod family.
template<typename T>
-static T
-(JNICALL _Jv_JNI_CallMethodV) (JNIEnv *env, jobject obj,
- jmethodID id, va_list args)
+static T JNICALL
+_Jv_JNI_CallMethodV (JNIEnv *env, jobject obj,
+ jmethodID id, va_list args)
{
return _Jv_JNI_CallAnyMethodV<T, normal> (env, obj, NULL, id, args);
}
// Functions with this signature are used to implement functions in
// the CallMethod family.
template<typename T>
-static T
-(JNICALL _Jv_JNI_CallMethod) (JNIEnv *env, jobject obj, jmethodID id, ...)
+static T JNICALL
+_Jv_JNI_CallMethod (JNIEnv *env, jobject obj, jmethodID id, ...)
{
va_list args;
T result;
// Functions with this signature are used to implement functions in
// the CallMethod family.
template<typename T>
-static T
-(JNICALL _Jv_JNI_CallMethodA) (JNIEnv *env, jobject obj,
- jmethodID id, jvalue *args)
+static T JNICALL
+_Jv_JNI_CallMethodA (JNIEnv *env, jobject obj,
+ jmethodID id, jvalue *args)
{
return _Jv_JNI_CallAnyMethodA<T, normal> (env, obj, NULL, id, args);
}
-static void
-(JNICALL _Jv_JNI_CallVoidMethodV) (JNIEnv *env, jobject obj,
- jmethodID id, va_list args)
+static void JNICALL
+_Jv_JNI_CallVoidMethodV (JNIEnv *env, jobject obj,
+ jmethodID id, va_list args)
{
_Jv_JNI_CallAnyVoidMethodV<normal> (env, obj, NULL, id, args);
}
-static void
-(JNICALL _Jv_JNI_CallVoidMethod) (JNIEnv *env, jobject obj, jmethodID id, ...)
+static void JNICALL
+_Jv_JNI_CallVoidMethod (JNIEnv *env, jobject obj, jmethodID id, ...)
{
va_list args;
va_end (args);
}
-static void
-(JNICALL _Jv_JNI_CallVoidMethodA) (JNIEnv *env, jobject obj,
- jmethodID id, jvalue *args)
+static void JNICALL
+_Jv_JNI_CallVoidMethodA (JNIEnv *env, jobject obj,
+ jmethodID id, jvalue *args)
{
_Jv_JNI_CallAnyVoidMethodA<normal> (env, obj, NULL, id, args);
}
// Functions with this signature are used to implement functions in
// the CallStaticMethod family.
template<typename T>
-static T
-(JNICALL _Jv_JNI_CallStaticMethodV) (JNIEnv *env, jclass klass,
- jmethodID id, va_list args)
+static T JNICALL
+_Jv_JNI_CallStaticMethodV (JNIEnv *env, jclass klass,
+ jmethodID id, va_list args)
{
JvAssert (((id->accflags) & java::lang::reflect::Modifier::STATIC));
JvAssert (java::lang::Class::class$.isInstance (unwrap (klass)));
// Functions with this signature are used to implement functions in
// the CallStaticMethod family.
template<typename T>
-static T
-(JNICALL _Jv_JNI_CallStaticMethod) (JNIEnv *env, jclass klass,
- jmethodID id, ...)
+static T JNICALL
+_Jv_JNI_CallStaticMethod (JNIEnv *env, jclass klass,
+ jmethodID id, ...)
{
va_list args;
T result;
// Functions with this signature are used to implement functions in
// the CallStaticMethod family.
template<typename T>
-static T
-(JNICALL _Jv_JNI_CallStaticMethodA) (JNIEnv *env, jclass klass, jmethodID id,
- jvalue *args)
+static T JNICALL
+_Jv_JNI_CallStaticMethodA (JNIEnv *env, jclass klass, jmethodID id,
+ jvalue *args)
{
JvAssert (((id->accflags) & java::lang::reflect::Modifier::STATIC));
JvAssert (java::lang::Class::class$.isInstance (unwrap (klass)));
return _Jv_JNI_CallAnyMethodA<T, static_type> (env, NULL, klass, id, args);
}
-static void
-(JNICALL _Jv_JNI_CallStaticVoidMethodV) (JNIEnv *env, jclass klass,
- jmethodID id, va_list args)
+static void JNICALL
+_Jv_JNI_CallStaticVoidMethodV (JNIEnv *env, jclass klass,
+ jmethodID id, va_list args)
{
_Jv_JNI_CallAnyVoidMethodV<static_type> (env, NULL, klass, id, args);
}
-static void
-(JNICALL _Jv_JNI_CallStaticVoidMethod) (JNIEnv *env, jclass klass,
- jmethodID id, ...)
+static void JNICALL
+_Jv_JNI_CallStaticVoidMethod (JNIEnv *env, jclass klass,
+ jmethodID id, ...)
{
va_list args;
va_end (args);
}
-static void
-(JNICALL _Jv_JNI_CallStaticVoidMethodA) (JNIEnv *env, jclass klass,
- jmethodID id, jvalue *args)
+static void JNICALL
+_Jv_JNI_CallStaticVoidMethodA (JNIEnv *env, jclass klass,
+ jmethodID id, jvalue *args)
{
_Jv_JNI_CallAnyVoidMethodA<static_type> (env, NULL, klass, id, args);
}
-static jobject
-(JNICALL _Jv_JNI_NewObjectV) (JNIEnv *env, jclass klass,
- jmethodID id, va_list args)
+static jobject JNICALL
+_Jv_JNI_NewObjectV (JNIEnv *env, jclass klass,
+ jmethodID id, va_list args)
{
JvAssert (klass && ! klass->isArray ());
- JvAssert (! strcmp (id->name->data, "<init>")
- && id->signature->length > 2
- && id->signature->data[0] == '('
- && ! strcmp (&id->signature->data[id->signature->length - 2],
+ JvAssert (! strcmp (id->name->chars(), "<init>")
+ && id->signature->len() > 2
+ && id->signature->chars()[0] == '('
+ && ! strcmp (&id->signature->chars()[id->signature->len() - 2],
")V"));
return _Jv_JNI_CallAnyMethodV<jobject, constructor> (env, NULL, klass,
id, args);
}
-static jobject
-(JNICALL _Jv_JNI_NewObject) (JNIEnv *env, jclass klass, jmethodID id, ...)
+static jobject JNICALL
+_Jv_JNI_NewObject (JNIEnv *env, jclass klass, jmethodID id, ...)
{
JvAssert (klass && ! klass->isArray ());
- JvAssert (! strcmp (id->name->data, "<init>")
- && id->signature->length > 2
- && id->signature->data[0] == '('
- && ! strcmp (&id->signature->data[id->signature->length - 2],
+ JvAssert (! strcmp (id->name->chars(), "<init>")
+ && id->signature->len() > 2
+ && id->signature->chars()[0] == '('
+ && ! strcmp (&id->signature->chars()[id->signature->len() - 2],
")V"));
va_list args;
return result;
}
-static jobject
-(JNICALL _Jv_JNI_NewObjectA) (JNIEnv *env, jclass klass, jmethodID id,
- jvalue *args)
+static jobject JNICALL
+_Jv_JNI_NewObjectA (JNIEnv *env, jclass klass, jmethodID id,
+ jvalue *args)
{
JvAssert (klass && ! klass->isArray ());
- JvAssert (! strcmp (id->name->data, "<init>")
- && id->signature->length > 2
- && id->signature->data[0] == '('
- && ! strcmp (&id->signature->data[id->signature->length - 2],
+ JvAssert (! strcmp (id->name->chars(), "<init>")
+ && id->signature->len() > 2
+ && id->signature->chars()[0] == '('
+ && ! strcmp (&id->signature->chars()[id->signature->len() - 2],
")V"));
return _Jv_JNI_CallAnyMethodA<jobject, constructor> (env, NULL, klass,
\f
template<typename T>
-static T
-(JNICALL _Jv_JNI_GetField) (JNIEnv *env, jobject obj, jfieldID field)
+static T JNICALL
+_Jv_JNI_GetField (JNIEnv *env, jobject obj, jfieldID field)
{
obj = unwrap (obj);
JvAssert (obj);
}
template<typename T>
-static void
-(JNICALL _Jv_JNI_SetField) (JNIEnv *, jobject obj, jfieldID field, T value)
+static void JNICALL
+_Jv_JNI_SetField (JNIEnv *, jobject obj, jfieldID field, T value)
{
obj = unwrap (obj);
value = unwrap (value);
}
template<jboolean is_static>
-static jfieldID
-(JNICALL _Jv_JNI_GetAnyFieldID) (JNIEnv *env, jclass clazz,
- const char *name, const char *sig)
+static jfieldID JNICALL
+_Jv_JNI_GetAnyFieldID (JNIEnv *env, jclass clazz,
+ const char *name, const char *sig)
{
try
{
char s[len + 1];
for (int i = 0; i <= len; ++i)
s[i] = (sig[i] == '/') ? '.' : sig[i];
- jclass field_class = _Jv_FindClassFromSignature ((char *) s, NULL);
-
- // FIXME: what if field_class == NULL?
+ java::lang::ClassLoader *loader = clazz->getClassLoaderInternal ();
+ jclass field_class = _Jv_FindClassFromSignature ((char *) s, loader);
+ if (! field_class)
+ throw new java::lang::ClassNotFoundException(JvNewStringUTF(s));
- java::lang::ClassLoader *loader = clazz->getClassLoader ();
while (clazz != NULL)
{
// We acquire the class lock so that fields aren't resolved
// The field might be resolved or it might not be. It
// is much simpler to always resolve it.
- _Jv_ResolveField (field, loader);
+ _Jv_Linker::resolve_field (field, loader);
if (_Jv_equalUtf8Consts (f_name, a_name)
&& field->getClass() == field_class)
return field;
}
template<typename T>
-static T
-(JNICALL _Jv_JNI_GetStaticField) (JNIEnv *env, jclass, jfieldID field)
+static T JNICALL
+_Jv_JNI_GetStaticField (JNIEnv *env, jclass, jfieldID field)
{
T *ptr = (T *) field->u.addr;
return wrap_value (env, *ptr);
}
template<typename T>
-static void
-(JNICALL _Jv_JNI_SetStaticField) (JNIEnv *, jclass, jfieldID field, T value)
+static void JNICALL
+_Jv_JNI_SetStaticField (JNIEnv *, jclass, jfieldID field, T value)
{
value = unwrap (value);
T *ptr = (T *) field->u.addr;
*ptr = value;
}
-static jstring
-(JNICALL _Jv_JNI_NewString) (JNIEnv *env, const jchar *unichars, jsize len)
+static jstring JNICALL
+_Jv_JNI_NewString (JNIEnv *env, const jchar *unichars, jsize len)
{
try
{
}
}
-static jsize
-(JNICALL _Jv_JNI_GetStringLength) (JNIEnv *, jstring string)
+static jsize JNICALL
+_Jv_JNI_GetStringLength (JNIEnv *, jstring string)
{
return unwrap (string)->length();
}
-static const jchar *
-(JNICALL _Jv_JNI_GetStringChars) (JNIEnv *, jstring string, jboolean *isCopy)
+static const jchar * JNICALL
+_Jv_JNI_GetStringChars (JNIEnv *, jstring string, jboolean *isCopy)
{
string = unwrap (string);
jchar *result = _Jv_GetStringChars (string);
return (const jchar *) result;
}
-static void
-(JNICALL _Jv_JNI_ReleaseStringChars) (JNIEnv *, jstring string, const jchar *)
+static void JNICALL
+_Jv_JNI_ReleaseStringChars (JNIEnv *, jstring string, const jchar *)
{
unmark_for_gc (unwrap (string), global_ref_table);
}
-static jstring
-(JNICALL _Jv_JNI_NewStringUTF) (JNIEnv *env, const char *bytes)
+static jstring JNICALL
+_Jv_JNI_NewStringUTF (JNIEnv *env, const char *bytes)
{
try
{
}
}
-static jsize
-(JNICALL _Jv_JNI_GetStringUTFLength) (JNIEnv *, jstring string)
+static jsize JNICALL
+_Jv_JNI_GetStringUTFLength (JNIEnv *, jstring string)
{
return JvGetStringUTFLength (unwrap (string));
}
-static const char *
-(JNICALL _Jv_JNI_GetStringUTFChars) (JNIEnv *env, jstring string,
- jboolean *isCopy)
+static const char * JNICALL
+_Jv_JNI_GetStringUTFChars (JNIEnv *env, jstring string,
+ jboolean *isCopy)
{
- string = unwrap (string);
- jsize len = JvGetStringUTFLength (string);
try
{
+ string = unwrap (string);
+ if (string == NULL)
+ return NULL;
+ jsize len = JvGetStringUTFLength (string);
char *r = (char *) _Jv_Malloc (len + 1);
- JvGetStringUTFRegion (string, 0, len, r);
+ JvGetStringUTFRegion (string, 0, string->length(), r);
r[len] = '\0';
if (isCopy)
}
}
-static void
-(JNICALL _Jv_JNI_ReleaseStringUTFChars) (JNIEnv *, jstring, const char *utf)
+static void JNICALL
+_Jv_JNI_ReleaseStringUTFChars (JNIEnv *, jstring, const char *utf)
{
_Jv_Free ((void *) utf);
}
-static void
-(JNICALL _Jv_JNI_GetStringRegion) (JNIEnv *env, jstring string, jsize start,
- jsize len, jchar *buf)
+static void JNICALL
+_Jv_JNI_GetStringRegion (JNIEnv *env, jstring string, jsize start,
+ jsize len, jchar *buf)
{
string = unwrap (string);
jchar *result = _Jv_GetStringChars (string);
memcpy (buf, &result[start], len * sizeof (jchar));
}
-static void
-(JNICALL _Jv_JNI_GetStringUTFRegion) (JNIEnv *env, jstring str, jsize start,
- jsize len, char *buf)
+static void JNICALL
+_Jv_JNI_GetStringUTFRegion (JNIEnv *env, jstring str, jsize start,
+ jsize len, char *buf)
{
str = unwrap (str);
_Jv_GetStringUTFRegion (str, start, len, buf);
}
-static const jchar *
-(JNICALL _Jv_JNI_GetStringCritical) (JNIEnv *, jstring str, jboolean *isCopy)
+static const jchar * JNICALL
+_Jv_JNI_GetStringCritical (JNIEnv *, jstring str, jboolean *isCopy)
{
jchar *result = _Jv_GetStringChars (unwrap (str));
if (isCopy)
return result;
}
-static void
-(JNICALL _Jv_JNI_ReleaseStringCritical) (JNIEnv *, jstring, const jchar *)
+static void JNICALL
+_Jv_JNI_ReleaseStringCritical (JNIEnv *, jstring, const jchar *)
{
// Nothing.
}
-static jsize
-(JNICALL _Jv_JNI_GetArrayLength) (JNIEnv *, jarray array)
+static jsize JNICALL
+_Jv_JNI_GetArrayLength (JNIEnv *, jarray array)
{
return unwrap (array)->length;
}
-static jarray
-(JNICALL _Jv_JNI_NewObjectArray) (JNIEnv *env, jsize length,
- jclass elementClass, jobject init)
+static jobjectArray JNICALL
+_Jv_JNI_NewObjectArray (JNIEnv *env, jsize length,
+ jclass elementClass, jobject init)
{
try
{
_Jv_CheckCast (elementClass, init);
jarray result = JvNewObjectArray (length, elementClass, init);
- return (jarray) wrap_value (env, result);
+ return (jobjectArray) wrap_value (env, result);
}
catch (jthrowable t)
{
}
}
-static jobject
-(JNICALL _Jv_JNI_GetObjectArrayElement) (JNIEnv *env, jobjectArray array,
- jsize index)
+static jobject JNICALL
+_Jv_JNI_GetObjectArrayElement (JNIEnv *env, jobjectArray array,
+ jsize index)
{
if ((unsigned) index >= (unsigned) array->length)
_Jv_ThrowBadArrayIndex (index);
return wrap_value (env, elts[index]);
}
-static void
-(JNICALL _Jv_JNI_SetObjectArrayElement) (JNIEnv *env, jobjectArray array,
- jsize index, jobject value)
+static void JNICALL
+_Jv_JNI_SetObjectArrayElement (JNIEnv *env, jobjectArray array,
+ jsize index, jobject value)
{
try
{
}
template<typename T, jclass K>
-static JArray<T> *
-(JNICALL _Jv_JNI_NewPrimitiveArray) (JNIEnv *env, jsize length)
+static JArray<T> * JNICALL
+_Jv_JNI_NewPrimitiveArray (JNIEnv *env, jsize length)
{
try
{
}
}
-template<typename T>
-static T *
-(JNICALL _Jv_JNI_GetPrimitiveArrayElements) (JNIEnv *, JArray<T> *array,
- jboolean *isCopy)
+template<typename T, jclass K>
+static T * JNICALL
+_Jv_JNI_GetPrimitiveArrayElements (JNIEnv *env, JArray<T> *array,
+ jboolean *isCopy)
{
array = unwrap (array);
+ if (! _Jv_JNI_check_types (env, array, K))
+ return NULL;
T *elts = elements (array);
if (isCopy)
{
return elts;
}
-template<typename T>
-static void
-(JNICALL _Jv_JNI_ReleasePrimitiveArrayElements) (JNIEnv *, JArray<T> *array,
- T *, jint /* mode */)
+template<typename T, jclass K>
+static void JNICALL
+_Jv_JNI_ReleasePrimitiveArrayElements (JNIEnv *env, JArray<T> *array,
+ T *, jint /* mode */)
{
array = unwrap (array);
+ _Jv_JNI_check_types (env, array, K);
// Note that we ignore MODE. We can do this because we never copy
// the array elements. My reading of the JNI documentation is that
// this is an option for the implementor.
unmark_for_gc (array, global_ref_table);
}
-template<typename T>
-static void
-(JNICALL _Jv_JNI_GetPrimitiveArrayRegion) (JNIEnv *env, JArray<T> *array,
- jsize start, jsize len,
+template<typename T, jclass K>
+static void JNICALL
+_Jv_JNI_GetPrimitiveArrayRegion (JNIEnv *env, JArray<T> *array,
+ jsize start, jsize len,
T *buf)
{
array = unwrap (array);
+ if (! _Jv_JNI_check_types (env, array, K))
+ return;
// The cast to unsigned lets us save a comparison.
if (start < 0 || len < 0
}
}
-template<typename T>
-static void
-(JNICALL _Jv_JNI_SetPrimitiveArrayRegion) (JNIEnv *env, JArray<T> *array,
- jsize start, jsize len, T *buf)
+template<typename T, jclass K>
+static void JNICALL
+_Jv_JNI_SetPrimitiveArrayRegion (JNIEnv *env, JArray<T> *array,
+ jsize start, jsize len, T *buf)
{
array = unwrap (array);
+ if (! _Jv_JNI_check_types (env, array, K))
+ return;
// The cast to unsigned lets us save a comparison.
if (start < 0 || len < 0
}
}
-static void *
-(JNICALL _Jv_JNI_GetPrimitiveArrayCritical) (JNIEnv *, jarray array,
- jboolean *isCopy)
+static void * JNICALL
+_Jv_JNI_GetPrimitiveArrayCritical (JNIEnv *, jarray array,
+ jboolean *isCopy)
{
array = unwrap (array);
// FIXME: does this work?
return r;
}
-static void
-(JNICALL _Jv_JNI_ReleasePrimitiveArrayCritical) (JNIEnv *, jarray, void *, jint)
+static void JNICALL
+_Jv_JNI_ReleasePrimitiveArrayCritical (JNIEnv *, jarray, void *, jint)
{
// Nothing.
}
-static jint
-(JNICALL _Jv_JNI_MonitorEnter) (JNIEnv *env, jobject obj)
+static jint JNICALL
+_Jv_JNI_MonitorEnter (JNIEnv *env, jobject obj)
{
try
{
return JNI_ERR;
}
-static jint
-(JNICALL _Jv_JNI_MonitorExit) (JNIEnv *env, jobject obj)
+static jint JNICALL
+_Jv_JNI_MonitorExit (JNIEnv *env, jobject obj)
{
try
{
}
// JDK 1.2
-jobject
-(JNICALL _Jv_JNI_ToReflectedField) (JNIEnv *env, jclass cls, jfieldID fieldID,
- jboolean)
+jobject JNICALL
+_Jv_JNI_ToReflectedField (JNIEnv *env, jclass cls, jfieldID fieldID,
+ jboolean)
{
try
{
}
// JDK 1.2
-static jfieldID
-(JNICALL _Jv_JNI_FromReflectedField) (JNIEnv *, jobject f)
+static jfieldID JNICALL
+_Jv_JNI_FromReflectedField (JNIEnv *, jobject f)
{
using namespace java::lang::reflect;
return _Jv_FromReflectedField (field);
}
-jobject
-(JNICALL _Jv_JNI_ToReflectedMethod) (JNIEnv *env, jclass klass, jmethodID id,
- jboolean)
+jobject JNICALL
+_Jv_JNI_ToReflectedMethod (JNIEnv *env, jclass klass, jmethodID id,
+ jboolean)
{
using namespace java::lang::reflect;
return wrap_value (env, result);
}
-static jmethodID
-(JNICALL _Jv_JNI_FromReflectedMethod) (JNIEnv *, jobject method)
+static jmethodID JNICALL
+_Jv_JNI_FromReflectedMethod (JNIEnv *, jobject method)
{
using namespace java::lang::reflect;
method = unwrap (method);
}
// JDK 1.2.
-jweak
-(JNICALL _Jv_JNI_NewWeakGlobalRef) (JNIEnv *env, jobject obj)
+jweak JNICALL
+_Jv_JNI_NewWeakGlobalRef (JNIEnv *env, jobject obj)
{
using namespace gnu::gcj::runtime;
JNIWeakRef *ref = NULL;
return reinterpret_cast<jweak> (ref);
}
-void
-(JNICALL _Jv_JNI_DeleteWeakGlobalRef) (JNIEnv *, jweak obj)
+void JNICALL
+_Jv_JNI_DeleteWeakGlobalRef (JNIEnv *, jweak obj)
{
using namespace gnu::gcj::runtime;
JNIWeakRef *ref = reinterpret_cast<JNIWeakRef *> (obj);
// Direct byte buffers.
-static jobject
-(JNICALL _Jv_JNI_NewDirectByteBuffer) (JNIEnv *, void *, jlong)
+static jobject JNICALL
+_Jv_JNI_NewDirectByteBuffer (JNIEnv *, void *address, jlong length)
{
- // For now we don't support this.
- return NULL;
+ using namespace gnu::gcj;
+ using namespace java::nio;
+ return new DirectByteBufferImpl$ReadWrite
+ (reinterpret_cast<RawData *> (address), length);
}
-static void *
-(JNICALL _Jv_JNI_GetDirectBufferAddress) (JNIEnv *, jobject)
+static void * JNICALL
+_Jv_JNI_GetDirectBufferAddress (JNIEnv *, jobject buffer)
{
- // For now we don't support this.
- return NULL;
+ using namespace java::nio;
+ if (! _Jv_IsInstanceOf (buffer, &Buffer::class$))
+ return NULL;
+ Buffer *tmp = static_cast<Buffer *> (buffer);
+ return reinterpret_cast<void *> (tmp->address);
}
-static jlong
-(JNICALL _Jv_JNI_GetDirectBufferCapacity) (JNIEnv *, jobject)
+static jlong JNICALL
+_Jv_JNI_GetDirectBufferCapacity (JNIEnv *, jobject buffer)
{
- // For now we don't support this.
- return -1;
+ using namespace java::nio;
+ if (! _Jv_IsInstanceOf (buffer, &Buffer::class$))
+ return -1;
+ Buffer *tmp = static_cast<Buffer *> (buffer);
+ if (tmp->address == NULL)
+ return -1;
+ return tmp->capacity();
}
\f
nathash =
(JNINativeMethod *) _Jv_AllocBytes (nathash_size
* sizeof (JNINativeMethod));
- memset (nathash, 0, nathash_size * sizeof (JNINativeMethod));
}
else
{
nathash =
(JNINativeMethod *) _Jv_AllocBytes (nathash_size
* sizeof (JNINativeMethod));
- memset (nathash, 0, nathash_size * sizeof (JNINativeMethod));
for (int i = 0; i < savesize; ++i)
{
return;
// FIXME
slot->name = strdup (method->name);
- slot->signature = strdup (method->signature);
+ // This was already strduped in _Jv_JNI_RegisterNatives.
+ slot->signature = method->signature;
slot->fnPtr = method->fnPtr;
}
-static jint
-(JNICALL _Jv_JNI_RegisterNatives) (JNIEnv *env, jclass klass,
- const JNINativeMethod *methods,
- jint nMethods)
+static jint JNICALL
+_Jv_JNI_RegisterNatives (JNIEnv *env, jclass klass,
+ const JNINativeMethod *methods,
+ jint nMethods)
{
// Synchronize while we do the work. This must match
// synchronization in some other functions that manipulate or use
// the nathash table.
JvSynchronize sync (global_ref_table);
+ JNINativeMethod dottedMethod;
+
// Look at each descriptor given us, and find the corresponding
// method in the class.
for (int j = 0; j < nMethods; ++j)
{
_Jv_Method *self = &imeths[i];
- if (! strcmp (self->name->data, methods[j].name)
- && ! strcmp (self->signature->data, methods[j].signature))
+ // Copy this JNINativeMethod and do a slash to dot
+ // conversion on the signature.
+ dottedMethod.name = methods[j].name;
+ dottedMethod.signature = strdup (methods[j].signature);
+ dottedMethod.fnPtr = methods[j].fnPtr;
+ char *c = dottedMethod.signature;
+ while (*c)
{
- if (! (self->accflags
- & java::lang::reflect::Modifier::NATIVE))
+ if (*c == '/')
+ *c = '.';
+ c++;
+ }
+
+ if (! strcmp (self->name->chars (), dottedMethod.name)
+ && ! strcmp (self->signature->chars (), dottedMethod.signature))
+ {
+ if (! (self->accflags & java::lang::reflect::Modifier::NATIVE))
break;
// Found a match that is native.
found = true;
- nathash_add (&methods[j]);
+ nathash_add (&dottedMethod);
break;
}
jstring m = JvNewStringUTF (methods[j].name);
try
{
- env->ex =new java::lang::NoSuchMethodError (m);
+ env->ex = new java::lang::NoSuchMethodError (m);
}
catch (jthrowable t)
{
return JNI_OK;
}
-static jint
-(JNICALL _Jv_JNI_UnregisterNatives) (JNIEnv *, jclass)
+static jint JNICALL
+_Jv_JNI_UnregisterNatives (JNIEnv *, jclass)
{
// FIXME -- we could implement this.
return JNI_ERR;
// Don't use add_char because we need a literal `_'.
buf[here++] = '_';
- const unsigned char *fn = (const unsigned char *) func_name->data;
- const unsigned char *limit = fn + func_name->length;
+ const unsigned char *fn = (const unsigned char *) func_name->chars ();
+ const unsigned char *limit = fn + func_name->len ();
for (int i = 0; ; ++i)
{
int ch = UTF8_GET (fn, limit);
buf[here++] = '_';
buf[here++] = '_';
- const unsigned char *sig = (const unsigned char *) signature->data;
- limit = sig + signature->length;
+ const unsigned char *sig = (const unsigned char *) signature->chars ();
+ limit = sig + signature->len ();
JvAssert (sig[0] == '(');
++sig;
while (1)
_Jv_GetJNIEnvNewFrame (jclass klass)
{
JNIEnv *env = _Jv_GetCurrentJNIEnv ();
- if (env == NULL)
+ if (__builtin_expect (env == NULL, false))
{
env = (JNIEnv *) _Jv_MallocUnchecked (sizeof (JNIEnv));
env->p = &_Jv_JNIFunctions;
env->locals = NULL;
// We set env->ex below.
+ // Set up the bottom, reusable frame.
+ env->bottom_locals = (_Jv_JNI_LocalFrame *)
+ _Jv_MallocUnchecked (sizeof (_Jv_JNI_LocalFrame)
+ + (FRAME_SIZE
+ * sizeof (jobject)));
+
+ env->bottom_locals->marker = MARK_SYSTEM;
+ env->bottom_locals->size = FRAME_SIZE;
+ env->bottom_locals->next = NULL;
+ env->bottom_locals->allocated_p = 0;
+ memset (&env->bottom_locals->vec[0], 0,
+ env->bottom_locals->size * sizeof (jobject));
+
_Jv_SetCurrentJNIEnv (env);
}
- _Jv_JNI_LocalFrame *frame
- = (_Jv_JNI_LocalFrame *) _Jv_MallocUnchecked (sizeof (_Jv_JNI_LocalFrame)
- + (FRAME_SIZE
- * sizeof (jobject)));
+ // If we're in a simple JNI call (non-nested), we can just reuse the
+ // locals frame we allocated many calls ago, back when the env was first
+ // built, above.
- frame->marker = MARK_SYSTEM;
- frame->size = FRAME_SIZE;
- frame->next = env->locals;
+ if (__builtin_expect (env->locals == NULL, true))
+ env->locals = env->bottom_locals;
- for (int i = 0; i < frame->size; ++i)
- frame->vec[i] = NULL;
+ else
+ {
+ // Alternatively, we might be re-entering JNI, in which case we can't
+ // reuse the bottom_locals frame, because it is already underneath
+ // us. So we need to make a new one.
+
+ _Jv_JNI_LocalFrame *frame
+ = (_Jv_JNI_LocalFrame *) _Jv_MallocUnchecked (sizeof (_Jv_JNI_LocalFrame)
+ + (FRAME_SIZE
+ * sizeof (jobject)));
+
+ frame->marker = MARK_SYSTEM;
+ frame->size = FRAME_SIZE;
+ frame->allocated_p = 0;
+ frame->next = env->locals;
+
+ memset (&frame->vec[0], 0,
+ frame->size * sizeof (jobject));
+
+ env->locals = frame;
+ }
- env->locals = frame;
env->ex = NULL;
return env;
}
+// Destroy the env's reusable resources. This is called from the thread
+// destructor "finalize_native" in natThread.cc
+void
+_Jv_FreeJNIEnv (_Jv_JNIEnv *env)
+{
+ if (env == NULL)
+ return;
+
+ if (env->bottom_locals != NULL)
+ _Jv_Free (env->bottom_locals);
+
+ _Jv_Free (env);
+}
+
// Return the function which implements a particular JNI method. If
// we can't find the function, we throw the appropriate exception.
// This is `extern "C"' because the compiler uses it.
extern "C" void *
_Jv_LookupJNIMethod (jclass klass, _Jv_Utf8Const *name,
- _Jv_Utf8Const *signature)
+ _Jv_Utf8Const *signature, MAYBE_UNUSED int args_size)
{
- char buf[10 + 6 * (name->length + signature->length)];
+ int name_length = name->len();
+ int sig_length = signature->len();
+ char buf[10 + 6 * (name_length + sig_length) + 12];
int long_start;
void *function;
JvSynchronize sync (global_ref_table);
// First see if we have an override in the hash table.
- strncpy (buf, name->data, name->length);
- buf[name->length] = '\0';
- strncpy (buf + name->length + 1, signature->data, signature->length);
- buf[name->length + signature->length + 1] = '\0';
+ strncpy (buf, name->chars (), name_length);
+ buf[name_length] = '\0';
+ strncpy (buf + name_length + 1, signature->chars (), sig_length);
+ buf[name_length + sig_length + 1] = '\0';
JNINativeMethod meth;
meth.name = buf;
- meth.signature = buf + name->length + 1;
+ meth.signature = buf + name_length + 1;
function = nathash_find (&meth);
if (function != NULL)
return function;
// If there was no override, then look in the symbol table.
- mangled_name (klass, name, signature, buf, &long_start);
- char c = buf[long_start];
- buf[long_start] = '\0';
- function = _Jv_FindSymbolInExecutable (buf);
+ buf[0] = '_';
+ mangled_name (klass, name, signature, buf + 1, &long_start);
+ char c = buf[long_start + 1];
+ buf[long_start + 1] = '\0';
+
+ function = _Jv_FindSymbolInExecutable (buf + 1);
+#ifdef WIN32
+ // On Win32, we use the "stdcall" calling convention (see JNICALL
+ // in jni.h).
+ //
+ // For a function named 'fooBar' that takes 'nn' bytes as arguments,
+ // by default, MinGW GCC exports it as 'fooBar@nn', MSVC exports it
+ // as '_fooBar@nn' and Borland C exports it as 'fooBar'. We try to
+ // take care of all these variations here.
+
+ char asz_buf[12]; /* '@' + '2147483647' (32-bit INT_MAX) + '\0' */
+ char long_nm_sv[11]; /* Ditto, except for the '\0'. */
+
if (function == NULL)
{
- buf[long_start] = c;
+ // We have tried searching for the 'fooBar' form (BCC) - now
+ // try the others.
+
+ // First, save the part of the long name that will be damaged
+ // by appending '@nn'.
+ memcpy (long_nm_sv, (buf + long_start + 1 + 1), sizeof (long_nm_sv));
+
+ sprintf (asz_buf, "@%d", args_size);
+ strcat (buf, asz_buf);
+
+ // Search for the '_fooBar@nn' form (MSVC).
function = _Jv_FindSymbolInExecutable (buf);
+
+ if (function == NULL)
+ {
+ // Search for the 'fooBar@nn' form (MinGW GCC).
+ function = _Jv_FindSymbolInExecutable (buf + 1);
+ }
+ }
+#endif /* WIN32 */
+
+ if (function == NULL)
+ {
+ buf[long_start + 1] = c;
+#ifdef WIN32
+ // Restore the part of the long name that was damaged by
+ // appending the '@nn'.
+ memcpy ((buf + long_start + 1 + 1), long_nm_sv, sizeof (long_nm_sv));
+#endif /* WIN32 */
+ function = _Jv_FindSymbolInExecutable (buf + 1);
if (function == NULL)
{
- jstring str = JvNewStringUTF (name->data);
- throw new java::lang::UnsatisfiedLinkError (str);
+#ifdef WIN32
+ strcat (buf, asz_buf);
+ function = _Jv_FindSymbolInExecutable (buf);
+ if (function == NULL)
+ function = _Jv_FindSymbolInExecutable (buf + 1);
+
+ if (function == NULL)
+#endif /* WIN32 */
+ {
+ jstring str = JvNewStringUTF (name->chars ());
+ throw new java::lang::UnsatisfiedLinkError (str);
+ }
}
}
// time.
JvSynchronize sync (global_ref_table);
if (_this->function == NULL)
- _this->function = _Jv_LookupJNIMethod (_this->defining_class,
- _this->self->name,
- _this->self->signature);
+ {
+ int args_size = sizeof (JNIEnv *) + _this->args_raw_size;
+
+ if (_this->self->accflags & java::lang::reflect::Modifier::STATIC)
+ args_size += sizeof (_this->defining_class);
+
+ _this->function = _Jv_LookupJNIMethod (_this->defining_class,
+ _this->self->name,
+ _this->self->signature,
+ args_size);
+ }
}
JvAssert (_this->args_raw_size % sizeof (ffi_raw) == 0);
memcpy (&real_args[offset], args, _this->args_raw_size);
// The actual call to the JNI function.
+#if FFI_NATIVE_RAW_API
ffi_raw_call (&_this->jni_cif, (void (*)()) _this->function,
ret, real_args);
+#else
+ ffi_java_raw_call (&_this->jni_cif, (void (*)()) _this->function,
+ ret, real_args);
+#endif
+
+ // We might need to unwrap a JNI weak reference here.
+ if (_this->jni_cif.rtype == &ffi_type_pointer)
+ {
+ _Jv_value *val = (_Jv_value *) ret;
+ val->object_value = unwrap (val->object_value);
+ }
if (sync != NULL)
_Jv_MonitorExit (sync);
}
// Attaching an already-attached thread is a no-op.
- if (_Jv_GetCurrentJNIEnv () != NULL)
- return 0;
+ JNIEnv *env = _Jv_GetCurrentJNIEnv ();
+ if (env != NULL)
+ {
+ *penv = reinterpret_cast<void *> (env);
+ return 0;
+ }
- JNIEnv *env = (JNIEnv *) _Jv_MallocUnchecked (sizeof (JNIEnv));
+ env = (JNIEnv *) _Jv_MallocUnchecked (sizeof (JNIEnv));
if (env == NULL)
return JNI_ERR;
env->p = &_Jv_JNIFunctions;
env->ex = NULL;
env->klass = NULL;
- env->locals
+ env->bottom_locals
= (_Jv_JNI_LocalFrame *) _Jv_MallocUnchecked (sizeof (_Jv_JNI_LocalFrame)
+ (FRAME_SIZE
* sizeof (jobject)));
+ env->locals = env->bottom_locals;
if (env->locals == NULL)
{
_Jv_Free (env);
return JNI_ERR;
}
+ env->locals->allocated_p = 0;
env->locals->marker = MARK_SYSTEM;
env->locals->size = FRAME_SIZE;
env->locals->next = NULL;
}
// This is the one actually used by JNI.
-static jint
-(JNICALL _Jv_JNI_AttachCurrentThread) (JavaVM *vm, void **penv, void *args)
+static jint JNICALL
+_Jv_JNI_AttachCurrentThread (JavaVM *vm, void **penv, void *args)
{
return _Jv_JNI_AttachCurrentThread (vm, NULL, penv, args, false);
}
-static jint
-(JNICALL _Jv_JNI_AttachCurrentThreadAsDaemon) (JavaVM *vm, void **penv,
- void *args)
+static jint JNICALL
+_Jv_JNI_AttachCurrentThreadAsDaemon (JavaVM *vm, void **penv,
+ void *args)
{
return _Jv_JNI_AttachCurrentThread (vm, NULL, penv, args, true);
}
-static jint
-(JNICALL _Jv_JNI_DestroyJavaVM) (JavaVM *vm)
+static jint JNICALL
+_Jv_JNI_DestroyJavaVM (JavaVM *vm)
{
JvAssert (the_vm && vm == the_vm);
- JNIEnv *env;
+ union
+ {
+ JNIEnv *env;
+ void *env_p;
+ };
+
if (_Jv_ThreadCurrent () != NULL)
{
jstring main_name;
return JNI_ERR;
}
- jint r = _Jv_JNI_AttachCurrentThread (vm, main_name,
- reinterpret_cast<void **> (&env),
+ jint r = _Jv_JNI_AttachCurrentThread (vm, main_name, &env_p,
NULL, false);
if (r < 0)
return r;
return JNI_ERR;
}
-jint
-(JNICALL _Jv_JNI_DetachCurrentThread) (JavaVM *)
+jint JNICALL
+_Jv_JNI_DetachCurrentThread (JavaVM *)
{
jint code = _Jv_DetachCurrentThread ();
return code ? JNI_EDETACHED : 0;
}
-static jint
-(JNICALL _Jv_JNI_GetEnv) (JavaVM *, void **penv, jint version)
+static jint JNICALL
+_Jv_JNI_GetEnv (JavaVM *, void **penv, jint version)
{
if (_Jv_ThreadCurrent () == NULL)
{
return 0;
}
-JNIEXPORT jint JNICALL
+jint JNICALL
JNI_GetDefaultJavaVMInitArgs (void *args)
{
jint version = * (jint *) args;
return 0;
}
-JNIEXPORT jint JNICALL
+jint JNICALL
JNI_CreateJavaVM (JavaVM **vm, void **penv, void *args)
{
JvAssert (! the_vm);
- _Jv_CreateJavaVM (NULL);
+ jint version = * (jint *) args;
+ // We only support 1.2 and 1.4.
+ if (version != JNI_VERSION_1_2 && version != JNI_VERSION_1_4)
+ return JNI_EVERSION;
+
+ JvVMInitArgs* vm_args = reinterpret_cast<JvVMInitArgs *> (args);
+
+ jint result = _Jv_CreateJavaVM (vm_args);
+ if (result)
+ return result;
// FIXME: synchronize
JavaVM *nvm = (JavaVM *) _Jv_MallocUnchecked (sizeof (JavaVM));
return JNI_ERR;
nvm->functions = &_Jv_JNI_InvokeFunctions;
- // Parse the arguments.
- if (args != NULL)
- {
- jint version = * (jint *) args;
- // We only support 1.2 and 1.4.
- if (version != JNI_VERSION_1_2 && version != JNI_VERSION_1_4)
- return JNI_EVERSION;
- JavaVMInitArgs *ia = reinterpret_cast<JavaVMInitArgs *> (args);
- for (int i = 0; i < ia->nOptions; ++i)
- {
- if (! strcmp (ia->options[i].optionString, "vfprintf")
- || ! strcmp (ia->options[i].optionString, "exit")
- || ! strcmp (ia->options[i].optionString, "abort"))
- {
- // We are required to recognize these, but for now we
- // don't handle them in any way. FIXME.
- continue;
- }
- else if (! strncmp (ia->options[i].optionString,
- "-verbose", sizeof ("-verbose") - 1))
- {
- // We don't do anything with this option either. We
- // might want to make sure the argument is valid, but we
- // don't really care all that much for now.
- continue;
- }
- else if (! strncmp (ia->options[i].optionString, "-D", 2))
- {
- // FIXME.
- continue;
- }
- else if (ia->ignoreUnrecognized)
- {
- if (ia->options[i].optionString[0] == '_'
- || ! strncmp (ia->options[i].optionString, "-X", 2))
- continue;
- }
-
- return JNI_ERR;
- }
- }
-
jint r =_Jv_JNI_AttachCurrentThread (nvm, penv, NULL);
if (r < 0)
return r;
return 0;
}
-JNIEXPORT jint JNICALL
+jint JNICALL
JNI_GetCreatedJavaVMs (JavaVM **vm_buffer, jsize buf_len, jsize *n_vms)
{
if (buf_len <= 0)
return the_vm;
}
-static jint
-(JNICALL _Jv_JNI_GetJavaVM) (JNIEnv *, JavaVM **vm)
+static jint JNICALL
+_Jv_JNI_GetJavaVM (JNIEnv *, JavaVM **vm)
{
*vm = _Jv_GetJavaVM ();
return *vm == NULL ? JNI_ERR : JNI_OK;
_Jv_JNI_NewPrimitiveArray<jlong, JvPrimClass (long)>, // NewLongArray
_Jv_JNI_NewPrimitiveArray<jfloat, JvPrimClass (float)>, // NewFloatArray
_Jv_JNI_NewPrimitiveArray<jdouble, JvPrimClass (double)>, // NewDoubleArray
- _Jv_JNI_GetPrimitiveArrayElements, // GetBooleanArrayElements
- _Jv_JNI_GetPrimitiveArrayElements, // GetByteArrayElements
- _Jv_JNI_GetPrimitiveArrayElements, // GetCharArrayElements
- _Jv_JNI_GetPrimitiveArrayElements, // GetShortArrayElements
- _Jv_JNI_GetPrimitiveArrayElements, // GetIntArrayElements
- _Jv_JNI_GetPrimitiveArrayElements, // GetLongArrayElements
- _Jv_JNI_GetPrimitiveArrayElements, // GetFloatArrayElements
- _Jv_JNI_GetPrimitiveArrayElements, // GetDoubleArrayElements
- _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseBooleanArrayElements
- _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseByteArrayElements
- _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseCharArrayElements
- _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseShortArrayElements
- _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseIntArrayElements
- _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseLongArrayElements
- _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseFloatArrayElements
- _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseDoubleArrayElements
- _Jv_JNI_GetPrimitiveArrayRegion, // GetBooleanArrayRegion
- _Jv_JNI_GetPrimitiveArrayRegion, // GetByteArrayRegion
- _Jv_JNI_GetPrimitiveArrayRegion, // GetCharArrayRegion
- _Jv_JNI_GetPrimitiveArrayRegion, // GetShortArrayRegion
- _Jv_JNI_GetPrimitiveArrayRegion, // GetIntArrayRegion
- _Jv_JNI_GetPrimitiveArrayRegion, // GetLongArrayRegion
- _Jv_JNI_GetPrimitiveArrayRegion, // GetFloatArrayRegion
- _Jv_JNI_GetPrimitiveArrayRegion, // GetDoubleArrayRegion
- _Jv_JNI_SetPrimitiveArrayRegion, // SetBooleanArrayRegion
- _Jv_JNI_SetPrimitiveArrayRegion, // SetByteArrayRegion
- _Jv_JNI_SetPrimitiveArrayRegion, // SetCharArrayRegion
- _Jv_JNI_SetPrimitiveArrayRegion, // SetShortArrayRegion
- _Jv_JNI_SetPrimitiveArrayRegion, // SetIntArrayRegion
- _Jv_JNI_SetPrimitiveArrayRegion, // SetLongArrayRegion
- _Jv_JNI_SetPrimitiveArrayRegion, // SetFloatArrayRegion
- _Jv_JNI_SetPrimitiveArrayRegion, // SetDoubleArrayRegion
+ _Jv_JNI_GetPrimitiveArrayElements<jboolean, JvPrimClass (boolean)>,
+ // GetBooleanArrayElements
+ _Jv_JNI_GetPrimitiveArrayElements<jbyte, JvPrimClass (byte)>,
+ // GetByteArrayElements
+ _Jv_JNI_GetPrimitiveArrayElements<jchar, JvPrimClass (char)>,
+ // GetCharArrayElements
+ _Jv_JNI_GetPrimitiveArrayElements<jshort, JvPrimClass (short)>,
+ // GetShortArrayElements
+ _Jv_JNI_GetPrimitiveArrayElements<jint, JvPrimClass (int)>,
+ // GetIntArrayElements
+ _Jv_JNI_GetPrimitiveArrayElements<jlong, JvPrimClass (long)>,
+ // GetLongArrayElements
+ _Jv_JNI_GetPrimitiveArrayElements<jfloat, JvPrimClass (float)>,
+ // GetFloatArrayElements
+ _Jv_JNI_GetPrimitiveArrayElements<jdouble, JvPrimClass (double)>,
+ // GetDoubleArrayElements
+ _Jv_JNI_ReleasePrimitiveArrayElements<jboolean, JvPrimClass (boolean)>,
+ // ReleaseBooleanArrayElements
+ _Jv_JNI_ReleasePrimitiveArrayElements<jbyte, JvPrimClass (byte)>,
+ // ReleaseByteArrayElements
+ _Jv_JNI_ReleasePrimitiveArrayElements<jchar, JvPrimClass (char)>,
+ // ReleaseCharArrayElements
+ _Jv_JNI_ReleasePrimitiveArrayElements<jshort, JvPrimClass (short)>,
+ // ReleaseShortArrayElements
+ _Jv_JNI_ReleasePrimitiveArrayElements<jint, JvPrimClass (int)>,
+ // ReleaseIntArrayElements
+ _Jv_JNI_ReleasePrimitiveArrayElements<jlong, JvPrimClass (long)>,
+ // ReleaseLongArrayElements
+ _Jv_JNI_ReleasePrimitiveArrayElements<jfloat, JvPrimClass (float)>,
+ // ReleaseFloatArrayElements
+ _Jv_JNI_ReleasePrimitiveArrayElements<jdouble, JvPrimClass (double)>,
+ // ReleaseDoubleArrayElements
+ _Jv_JNI_GetPrimitiveArrayRegion<jboolean, JvPrimClass (boolean)>,
+ // GetBooleanArrayRegion
+ _Jv_JNI_GetPrimitiveArrayRegion<jbyte, JvPrimClass (byte)>,
+ // GetByteArrayRegion
+ _Jv_JNI_GetPrimitiveArrayRegion<jchar, JvPrimClass (char)>,
+ // GetCharArrayRegion
+ _Jv_JNI_GetPrimitiveArrayRegion<jshort, JvPrimClass (short)>,
+ // GetShortArrayRegion
+ _Jv_JNI_GetPrimitiveArrayRegion<jint, JvPrimClass (int)>,
+ // GetIntArrayRegion
+ _Jv_JNI_GetPrimitiveArrayRegion<jlong, JvPrimClass (long)>,
+ // GetLongArrayRegion
+ _Jv_JNI_GetPrimitiveArrayRegion<jfloat, JvPrimClass (float)>,
+ // GetFloatArrayRegion
+ _Jv_JNI_GetPrimitiveArrayRegion<jdouble, JvPrimClass (double)>,
+ // GetDoubleArrayRegion
+ _Jv_JNI_SetPrimitiveArrayRegion<jboolean, JvPrimClass (boolean)>,
+ // SetBooleanArrayRegion
+ _Jv_JNI_SetPrimitiveArrayRegion<jbyte, JvPrimClass (byte)>,
+ // SetByteArrayRegion
+ _Jv_JNI_SetPrimitiveArrayRegion<jchar, JvPrimClass (char)>,
+ // SetCharArrayRegion
+ _Jv_JNI_SetPrimitiveArrayRegion<jshort, JvPrimClass (short)>,
+ // SetShortArrayRegion
+ _Jv_JNI_SetPrimitiveArrayRegion<jint, JvPrimClass (int)>,
+ // SetIntArrayRegion
+ _Jv_JNI_SetPrimitiveArrayRegion<jlong, JvPrimClass (long)>,
+ // SetLongArrayRegion
+ _Jv_JNI_SetPrimitiveArrayRegion<jfloat, JvPrimClass (float)>,
+ // SetFloatArrayRegion
+ _Jv_JNI_SetPrimitiveArrayRegion<jdouble, JvPrimClass (double)>,
+ // SetDoubleArrayRegion
_Jv_JNI_RegisterNatives, // RegisterNatives
_Jv_JNI_UnregisterNatives, // UnregisterNatives
_Jv_JNI_MonitorEnter, // MonitorEnter
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