Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
- $Id: native.c 7813 2007-04-25 19:20:13Z twisti $
-
*/
#include <assert.h>
#include <ctype.h>
-#if !defined(WITH_STATIC_CLASSPATH)
+#if defined(ENABLE_LTDL) && defined(HAVE_LTDL_H)
# include <ltdl.h>
#endif
+#include <stdint.h>
+
#include "vm/types.h"
#include "mm/memory.h"
+
#include "native/jni.h"
#include "native/native.h"
-#include "native/include/java_lang_String.h"
-#include "native/include/java_lang_Throwable.h"
+
+#include "native/vm/nativevm.h"
#include "threads/lock-common.h"
+#include "toolbox/avl.h"
#include "toolbox/hashtable.h"
#include "toolbox/logging.h"
/* include table of native functions ******************************************/
-#include "native/include/java_lang_Object.h"
-
-#if defined(ENABLE_JAVASE)
-
-#include "native/include/java_io_InputStream.h"
-#include "native/include/java_io_PrintStream.h"
-
-#include "native/include/java_lang_Cloneable.h"
-#include "native/include/java_util_Properties.h"
-
-#include "native/include/gnu_classpath_VMStackWalker.h"
-#include "native/include/gnu_classpath_VMSystemProperties.h"
-#include "native/include/gnu_java_lang_management_VMClassLoadingMXBeanImpl.h"
-#include "native/include/gnu_java_lang_management_VMMemoryMXBeanImpl.h"
-#include "native/include/gnu_java_lang_management_VMRuntimeMXBeanImpl.h"
-#include "native/include/java_lang_VMClass.h"
-#include "native/include/java_security_ProtectionDomain.h" /* required by... */
-#include "native/include/java_lang_VMClassLoader.h"
-#include "native/include/java_lang_VMObject.h"
-#include "native/include/java_lang_VMRuntime.h"
-#include "native/include/java_lang_VMString.h"
-#include "native/include/java_lang_VMSystem.h"
-#include "native/include/java_lang_VMThread.h"
-#include "native/include/java_lang_VMThrowable.h"
-#include "native/include/java_lang_management_VMManagementFactory.h"
-#include "native/include/java_lang_reflect_Constructor.h"
-#include "native/include/java_lang_reflect_Field.h"
-#include "native/include/java_lang_reflect_Method.h"
-#include "native/include/java_lang_reflect_VMProxy.h"
-#include "native/include/java_security_VMAccessController.h"
-#include "native/include/sun_misc_Unsafe.h"
-
-#if defined(ENABLE_JVMTI)
-#include "native/include/gnu_classpath_jdwp_event_EventRequest.h"
-#include "native/include/java_nio_ByteBuffer.h"
-#include "native/include/gnu_classpath_jdwp_VMVirtualMachine.h"
-#include "native/include/gnu_classpath_jdwp_VMFrame.h"
-#include "native/include/gnu_classpath_jdwp_VMMethod.h"
-#endif
-
-#elif defined(ENABLE_JAVAME_CLDC1_1)
-
-#include "native/include/com_sun_cldchi_io_ConsoleOutputStream.h"
-#include "native/include/com_sun_cldc_io_ResourceInputStream.h"
-#include "native/include/com_sun_cldc_io_j2me_socket_Protocol.h"
-#include "native/include/java_lang_Class.h"
-#include "native/include/java_lang_Double.h"
-#include "native/include/java_lang_Float.h"
-#include "native/include/java_lang_Math.h"
-#include "native/include/java_lang_Runtime.h"
-#include "native/include/java_lang_System.h"
-#include "native/include/java_lang_Thread.h"
-
-#endif
-
#if defined(WITH_STATIC_CLASSPATH)
-
-/* these are required to prevent compiler warnings */
-
-#include "native/include/java_net_DatagramPacket.h"
-#include "native/include/java_net_InetAddress.h"
-#include "native/include/java_net_SocketImpl.h"
-
-#include "native/include/gnu_java_net_PlainDatagramSocketImpl.h"
-#include "native/include/gnu_java_net_PlainSocketImpl.h"
-#include "native/include/gnu_java_nio_PipeImpl.h"
-#include "native/include/gnu_java_nio_channels_FileChannelImpl.h"
-#include "native/include/gnu_java_nio_charset_iconv_IconvEncoder.h"
-#include "native/include/gnu_java_nio_charset_iconv_IconvDecoder.h"
-#include "native/include/java_lang_VMProcess.h"
-#include "native/include/java_nio_MappedByteBufferImpl.h"
-#include "native/include/java_nio_channels_spi_SelectorProvider.h"
-
-/* now include the native table */
-
-#include "native/nativetable.inc"
-
-#elif !defined(ENABLE_LIBJVM)
-
-/* dummynativetable ************************************************************
-
- Ensure that symbols for functions implemented within CACAO are used
- and exported to dlopen.
-
- ATTENTION: Don't make this table static!!! Otherwise the compiler
- may optimize it away!
-
-*******************************************************************************/
-
-functionptr dummynativetable[] = {
-#if defined(ENABLE_JAVASE)
- (functionptr) Java_gnu_classpath_VMStackWalker_getClassContext,
- (functionptr) Java_gnu_classpath_VMStackWalker_getCallingClass,
- (functionptr) Java_gnu_classpath_VMStackWalker_getCallingClassLoader,
- (functionptr) Java_gnu_classpath_VMStackWalker_firstNonNullClassLoader,
-
- (functionptr) Java_gnu_classpath_VMSystemProperties_preInit,
-
- (functionptr) Java_gnu_java_lang_management_VMClassLoadingMXBeanImpl_getLoadedClassCount,
- (functionptr) Java_gnu_java_lang_management_VMClassLoadingMXBeanImpl_getUnloadedClassCount,
- (functionptr) Java_gnu_java_lang_management_VMClassLoadingMXBeanImpl_isVerbose,
- (functionptr) Java_gnu_java_lang_management_VMClassLoadingMXBeanImpl_setVerbose,
-
- (functionptr) Java_gnu_java_lang_management_VMMemoryMXBeanImpl_getHeapMemoryUsage,
- (functionptr) Java_gnu_java_lang_management_VMMemoryMXBeanImpl_getNonHeapMemoryUsage,
- (functionptr) Java_gnu_java_lang_management_VMMemoryMXBeanImpl_getObjectPendingFinalizationCount,
- (functionptr) Java_gnu_java_lang_management_VMMemoryMXBeanImpl_isVerbose,
- (functionptr) Java_gnu_java_lang_management_VMMemoryMXBeanImpl_setVerbose,
-
- (functionptr) Java_gnu_java_lang_management_VMRuntimeMXBeanImpl_getInputArguments,
- (functionptr) Java_gnu_java_lang_management_VMRuntimeMXBeanImpl_getStartTime,
-
- (functionptr) Java_java_lang_VMClass_isInstance,
- (functionptr) Java_java_lang_VMClass_isAssignableFrom,
- (functionptr) Java_java_lang_VMClass_isInterface,
- (functionptr) Java_java_lang_VMClass_isPrimitive,
- (functionptr) Java_java_lang_VMClass_getName,
- (functionptr) Java_java_lang_VMClass_getSuperclass,
- (functionptr) Java_java_lang_VMClass_getInterfaces,
- (functionptr) Java_java_lang_VMClass_getComponentType,
- (functionptr) Java_java_lang_VMClass_getModifiers,
- (functionptr) Java_java_lang_VMClass_getDeclaringClass,
- (functionptr) Java_java_lang_VMClass_getDeclaredClasses,
- (functionptr) Java_java_lang_VMClass_getDeclaredFields,
- (functionptr) Java_java_lang_VMClass_getDeclaredMethods,
- (functionptr) Java_java_lang_VMClass_getDeclaredConstructors,
- (functionptr) Java_java_lang_VMClass_getClassLoader,
- (functionptr) Java_java_lang_VMClass_forName,
- (functionptr) Java_java_lang_VMClass_isArray,
- (functionptr) Java_java_lang_VMClass_throwException,
-
- (functionptr) Java_java_lang_VMClassLoader_defineClass,
- (functionptr) Java_java_lang_VMClassLoader_resolveClass,
- (functionptr) Java_java_lang_VMClassLoader_loadClass,
- (functionptr) Java_java_lang_VMClassLoader_getPrimitiveClass,
- (functionptr) Java_java_lang_VMClassLoader_nativeGetResources,
- (functionptr) Java_java_lang_VMClassLoader_findLoadedClass,
-
- (functionptr) Java_java_lang_VMObject_getClass,
- (functionptr) Java_java_lang_VMObject_clone,
- (functionptr) Java_java_lang_VMObject_notify,
- (functionptr) Java_java_lang_VMObject_notifyAll,
- (functionptr) Java_java_lang_VMObject_wait,
-
- (functionptr) Java_java_lang_VMRuntime_availableProcessors,
- (functionptr) Java_java_lang_VMRuntime_freeMemory,
- (functionptr) Java_java_lang_VMRuntime_totalMemory,
- (functionptr) Java_java_lang_VMRuntime_maxMemory,
- (functionptr) Java_java_lang_VMRuntime_gc,
- (functionptr) Java_java_lang_VMRuntime_runFinalization,
- (functionptr) Java_java_lang_VMRuntime_runFinalizationForExit,
- (functionptr) Java_java_lang_VMRuntime_traceInstructions,
- (functionptr) Java_java_lang_VMRuntime_traceMethodCalls,
- (functionptr) Java_java_lang_VMRuntime_runFinalizersOnExit,
- (functionptr) Java_java_lang_VMRuntime_exit,
- (functionptr) Java_java_lang_VMRuntime_nativeLoad,
- (functionptr) Java_java_lang_VMRuntime_mapLibraryName,
-
- (functionptr) Java_java_lang_VMString_intern,
-
- (functionptr) Java_java_lang_VMSystem_arraycopy,
- (functionptr) Java_java_lang_VMSystem_identityHashCode,
-
- (functionptr) Java_java_lang_VMThread_start,
- (functionptr) Java_java_lang_VMThread_interrupt,
- (functionptr) Java_java_lang_VMThread_isInterrupted,
- (functionptr) Java_java_lang_VMThread_suspend,
- (functionptr) Java_java_lang_VMThread_resume,
- (functionptr) Java_java_lang_VMThread_nativeSetPriority,
- (functionptr) Java_java_lang_VMThread_nativeStop,
- (functionptr) Java_java_lang_VMThread_currentThread,
- (functionptr) Java_java_lang_VMThread_yield,
- (functionptr) Java_java_lang_VMThread_interrupted,
- (functionptr) Java_java_lang_VMThread_holdsLock,
- (functionptr) Java_java_lang_VMThread_getState,
-
- (functionptr) Java_java_lang_VMThrowable_fillInStackTrace,
- (functionptr) Java_java_lang_VMThrowable_getStackTrace,
-
- (functionptr) Java_java_lang_management_VMManagementFactory_getMemoryPoolNames,
- (functionptr) Java_java_lang_management_VMManagementFactory_getMemoryManagerNames,
- (functionptr) Java_java_lang_management_VMManagementFactory_getGarbageCollectorNames,
-
- (functionptr) Java_java_lang_reflect_Constructor_getModifiersInternal,
- (functionptr) Java_java_lang_reflect_Constructor_constructNative,
-
- (functionptr) Java_java_lang_reflect_Field_getModifiersInternal,
- (functionptr) Java_java_lang_reflect_Field_getType,
- (functionptr) Java_java_lang_reflect_Field_get,
- (functionptr) Java_java_lang_reflect_Field_getBoolean,
- (functionptr) Java_java_lang_reflect_Field_getByte,
- (functionptr) Java_java_lang_reflect_Field_getChar,
- (functionptr) Java_java_lang_reflect_Field_getShort,
- (functionptr) Java_java_lang_reflect_Field_getInt,
- (functionptr) Java_java_lang_reflect_Field_getLong,
- (functionptr) Java_java_lang_reflect_Field_getFloat,
- (functionptr) Java_java_lang_reflect_Field_getDouble,
- (functionptr) Java_java_lang_reflect_Field_set,
- (functionptr) Java_java_lang_reflect_Field_setBoolean,
- (functionptr) Java_java_lang_reflect_Field_setByte,
- (functionptr) Java_java_lang_reflect_Field_setChar,
- (functionptr) Java_java_lang_reflect_Field_setShort,
- (functionptr) Java_java_lang_reflect_Field_setInt,
- (functionptr) Java_java_lang_reflect_Field_setLong,
- (functionptr) Java_java_lang_reflect_Field_setFloat,
- (functionptr) Java_java_lang_reflect_Field_setDouble,
-
- (functionptr) Java_java_lang_reflect_Method_getModifiersInternal,
- (functionptr) Java_java_lang_reflect_Method_getReturnType,
- (functionptr) Java_java_lang_reflect_Method_getParameterTypes,
- (functionptr) Java_java_lang_reflect_Method_getExceptionTypes,
- (functionptr) Java_java_lang_reflect_Method_invokeNative,
-
- (functionptr) Java_java_lang_reflect_VMProxy_getProxyClass,
- (functionptr) Java_java_lang_reflect_VMProxy_getProxyData,
- (functionptr) Java_java_lang_reflect_VMProxy_generateProxyClass,
-
- (functionptr) Java_java_security_VMAccessController_getStack,
-
- (functionptr) Java_sun_misc_Unsafe_objectFieldOffset,
- (functionptr) Java_sun_misc_Unsafe_compareAndSwapInt,
-
-#if defined(ENABLE_JVMTI)
- (functionptr) Java_gnu_classpath_jdwp_VMVirtualMachine_suspendThread,
- (functionptr) Java_gnu_classpath_jdwp_VMVirtualMachine_resumeThread,
- (functionptr) Java_gnu_classpath_jdwp_VMVirtualMachine_getSuspendCount,
- (functionptr) Java_gnu_classpath_jdwp_VMVirtualMachine_getAllLoadedClassesCount,
- (functionptr) Java_gnu_classpath_jdwp_VMVirtualMachine_getClassStatus,
- (functionptr) Java_gnu_classpath_jdwp_VMVirtualMachine_getAllClassMethods,
- (functionptr) Java_gnu_classpath_jdwp_VMVirtualMachine_getClassMethod,
- (functionptr) Java_gnu_classpath_jdwp_VMVirtualMachine_getFrames,
- (functionptr) Java_gnu_classpath_jdwp_VMVirtualMachine_getFrame,
- (functionptr) Java_gnu_classpath_jdwp_VMVirtualMachine_getFrameCount,
- (functionptr) Java_gnu_classpath_jdwp_VMVirtualMachine_getThreadStatus,
- (functionptr) Java_gnu_classpath_jdwp_VMVirtualMachine_getLoadRequests,
- (functionptr) Java_gnu_classpath_jdwp_VMVirtualMachine_executeMethod,
- (functionptr) Java_gnu_classpath_jdwp_VMVirtualMachine_getSourceFile,
- (functionptr) Java_gnu_classpath_jdwp_VMVirtualMachine_registerEvent,
- (functionptr) Java_gnu_classpath_jdwp_VMVirtualMachine_unregisterEvent,
- (functionptr) Java_gnu_classpath_jdwp_VMVirtualMachine_clearEvents,
- (functionptr) Java_gnu_classpath_jdwp_VMVirtualMachine_getAllLoadedClasses,
- (functionptr) Java_gnu_classpath_jdwp_VMFrame_setValue,
- (functionptr) Java_gnu_classpath_jdwp_VMFrame_getValue,
- (functionptr) Java_gnu_classpath_jdwp_VMMethod_getName,
- (functionptr) Java_gnu_classpath_jdwp_VMMethod_getSignature,
- (functionptr) Java_gnu_classpath_jdwp_VMMethod_getModifiers,
- (functionptr) Java_gnu_classpath_jdwp_VMMethod_getLineTable,
- (functionptr) Java_gnu_classpath_jdwp_VMMethod_getVariableTable
-#endif
-
-#elif defined(ENABLE_JAVAME_CLDC1_1)
- (functionptr) Java_com_sun_cldc_io_ResourceInputStream_open,
-
- (functionptr) Java_com_sun_cldc_io_j2me_socket_Protocol_open0,
- (functionptr) Java_com_sun_cldc_io_j2me_socket_Protocol_readBuf,
- (functionptr) Java_com_sun_cldc_io_j2me_socket_Protocol_writeByte,
-
- (functionptr) Java_com_sun_cldchi_io_ConsoleOutputStream_write,
-
- (functionptr) Java_java_lang_Class_forName,
- (functionptr) Java_java_lang_Class_newInstance,
- (functionptr) Java_java_lang_Class_isInstance,
- (functionptr) Java_java_lang_Class_isAssignableFrom,
- (functionptr) Java_java_lang_Class_isInterface,
- (functionptr) Java_java_lang_Class_isArray,
- (functionptr) Java_java_lang_Class_getName,
-
- (functionptr) Java_java_lang_Double_doubleToLongBits,
-
- (functionptr) Java_java_lang_Float_floatToIntBits,
-
- (functionptr) Java_java_lang_Math_ceil,
- (functionptr) Java_java_lang_Math_cos,
- (functionptr) Java_java_lang_Math_floor,
- (functionptr) Java_java_lang_Math_sin,
- (functionptr) Java_java_lang_Math_sqrt,
- (functionptr) Java_java_lang_Math_tan,
-
- (functionptr) Java_java_lang_Object_hashCode,
- (functionptr) Java_java_lang_Object_notify,
- (functionptr) Java_java_lang_Object_wait,
-
- (functionptr) Java_java_lang_Runtime_exitInternal,
- (functionptr) Java_java_lang_Runtime_freeMemory,
- (functionptr) Java_java_lang_Runtime_totalMemory,
- (functionptr) Java_java_lang_Runtime_gc,
-
- (functionptr) Java_java_lang_String_hashCode,
- (functionptr) Java_java_lang_String_indexOf__I,
- (functionptr) Java_java_lang_String_indexOf__II,
- (functionptr) Java_java_lang_String_lastIndexOf__II,
- (functionptr) Java_java_lang_String_intern,
-
- (functionptr) Java_java_lang_System_getProperty0,
-
- (functionptr) Java_java_lang_Thread_currentThread,
- (functionptr) Java_java_lang_Thread_setPriority0,
- (functionptr) Java_java_lang_Thread_start0,
- (functionptr) Java_java_lang_Thread_yield,
-
- (functionptr) Java_java_lang_Throwable_printStackTrace,
- (functionptr) Java_java_lang_Throwable_fillInStackTrace
+# include "native/nativetable.inc"
#endif
-};
-
-#endif /* defined(ENABLE_LIBJVM) */
/* tables for methods *********************************************************/
/* global variables ***********************************************************/
-#if !defined(WITH_STATIC_CLASSPATH)
+static avl_tree_t *tree_native_methods;
+
+#if defined(ENABLE_LTDL)
static hashtable *hashtable_library;
-static lt_dlhandle mainhandle;
#endif
+/* prototypes *****************************************************************/
+
+static s4 native_tree_native_methods_comparator(const void *treenode, const void *node);
+
+
/* native_init *****************************************************************
Initializes the native subsystem.
bool native_init(void)
{
-#if !defined(WITH_STATIC_CLASSPATH)
+#if defined(ENABLE_LTDL)
/* initialize libltdl */
if (lt_dlinit())
vm_abort("native_init: lt_dlinit failed: %s\n", lt_dlerror());
- /* Get the handle for the main program or for the libjvm.so,
- depends on the configuration. */
-
-# if defined(ENABLE_LIBJVM)
- /* First try to open where dlopen searches, e.g. LD_LIBRARY_PATH.
- If not found, try the absolute path. */
-
- if (!(mainhandle = lt_dlopenext("libjvm")))
- if (!(mainhandle = lt_dlopenext(cacao_libjvm)))
- vm_abort("native_init: lt_dlopenext failed: %s\n", lt_dlerror());
-# else
- if (!(mainhandle = lt_dlopen(NULL)))
- vm_abort("native_init: lt_dlopen failed: %s\n", lt_dlerror());
-# endif
-
/* initialize library hashtable, 10 entries should be enough */
hashtable_library = NEW(hashtable);
hashtable_create(hashtable_library, 10);
#endif
- /* everything's ok */
-
- return true;
-}
-
-
-/* native_hashtable_library_add ************************************************
-
- Adds an entry to the native library hashtable.
-
-*******************************************************************************/
-
-#if !defined(WITH_STATIC_CLASSPATH)
-void native_hashtable_library_add(utf *filename, java_objectheader *loader,
- lt_dlhandle handle)
-{
- hashtable_library_loader_entry *le;
- hashtable_library_name_entry *ne; /* library name */
- u4 key; /* hashkey */
- u4 slot; /* slot in hashtable */
-
- LOCK_MONITOR_ENTER(hashtable_library->header);
-
- /* normally addresses are aligned to 4, 8 or 16 bytes */
-
- key = ((u4) (ptrint) loader) >> 4; /* align to 16-byte boundaries */
- slot = key & (hashtable_library->size - 1);
- le = hashtable_library->ptr[slot];
-
- /* search external hash chain for the entry */
-
- while (le) {
- if (le->loader == loader)
- break;
-
- le = le->hashlink; /* next element in external chain */
- }
-
- /* no loader found? create a new entry */
-
- if (le == NULL) {
- le = NEW(hashtable_library_loader_entry);
-
- le->loader = loader;
- le->namelink = NULL;
-
- /* insert entry into hashtable */
-
- le->hashlink =
- (hashtable_library_loader_entry *) hashtable_library->ptr[slot];
- hashtable_library->ptr[slot] = le;
-
- /* update number of hashtable-entries */
-
- hashtable_library->entries++;
- }
-
-
- /* search for library name */
-
- ne = le->namelink;
-
- while (ne) {
- if (ne->name == filename) {
- LOCK_MONITOR_EXIT(hashtable_library->header);
-
- return;
- }
-
- ne = ne->hashlink; /* next element in external chain */
- }
-
- /* not found? add the library name to the classloader */
-
- ne = NEW(hashtable_library_name_entry);
-
- ne->name = filename;
- ne->handle = handle;
+ /* initialize the native methods table */
- /* insert entry into external chain */
+ tree_native_methods = avl_create(&native_tree_native_methods_comparator);
- ne->hashlink = le->namelink;
- le->namelink = ne;
+ /* everything's ok */
- LOCK_MONITOR_EXIT(hashtable_library->header);
+ return true;
}
-#endif /* !defined(WITH_STATIC_CLASSPATH) */
-
-
-/* native_hashtable_library_find ***********************************************
-
- Find an entry in the native library hashtable.
-
-*******************************************************************************/
-
-#if !defined(WITH_STATIC_CLASSPATH)
-hashtable_library_name_entry *native_hashtable_library_find(utf *filename,
- java_objectheader *loader)
-{
- hashtable_library_loader_entry *le;
- hashtable_library_name_entry *ne; /* library name */
- u4 key; /* hashkey */
- u4 slot; /* slot in hashtable */
-
- /* normally addresses are aligned to 4, 8 or 16 bytes */
-
- key = ((u4) (ptrint) loader) >> 4; /* align to 16-byte boundaries */
- slot = key & (hashtable_library->size - 1);
- le = hashtable_library->ptr[slot];
-
- /* search external hash chain for the entry */
-
- while (le) {
- if (le->loader == loader)
- break;
-
- le = le->hashlink; /* next element in external chain */
- }
-
- /* no loader found? return NULL */
-
- if (!le)
- return NULL;
-
- /* search for library name */
-
- ne = le->namelink;
-
- while (ne) {
- if (ne->name == filename)
- return ne;
-
- ne = ne->hashlink; /* next element in external chain */
- }
-
- /* return entry, if no entry was found, ne is NULL */
- return ne;
-}
-#endif /* !defined(WITH_STATIC_CLASSPATH) */
+/* native_tree_native_methods_comparator ***************************************
-/* native_findfunction *********************************************************
+ Comparison function for AVL tree of native methods.
- Looks up a method (must have the same class name, method name,
- descriptor and 'static'ness) and returns a function pointer to it.
- Returns: function pointer or NULL (if there is no such method)
+ IN:
+ treenode....node in the tree
+ node........node to compare with tree-node
- Remark: For faster operation, the names/descriptors are converted
- from C strings to Unicode the first time this function is called.
+ RETURN VALUE:
+ -1, 0, +1
*******************************************************************************/
-#if defined(WITH_STATIC_CLASSPATH)
-functionptr native_findfunction(utf *cname, utf *mname, utf *desc,
- bool isstatic)
+static s4 native_tree_native_methods_comparator(const void *treenode, const void *node)
{
- /* entry of table for fast string comparison */
- struct nativecompref *n;
- s4 i;
-
- isstatic = isstatic ? true : false;
-
- if (!nativecompdone) {
- for (i = 0; i < NATIVETABLESIZE; i++) {
- nativecomptable[i].classname =
- utf_new_char(nativetable[i].classname);
-
- nativecomptable[i].methodname =
- utf_new_char(nativetable[i].methodname);
+ const native_methods_node_t *treenmn;
+ const native_methods_node_t *nmn;
- nativecomptable[i].descriptor =
- utf_new_char(nativetable[i].descriptor);
-
- nativecomptable[i].isstatic = nativetable[i].isstatic;
- nativecomptable[i].func = nativetable[i].func;
- }
+ treenmn = treenode;
+ nmn = node;
- nativecompdone = true;
- }
+ /* these are for walking the tree */
- for (i = 0; i < NATIVETABLESIZE; i++) {
- n = &(nativecomptable[i]);
+ if (treenmn->classname < nmn->classname)
+ return -1;
+ else if (treenmn->classname > nmn->classname)
+ return 1;
- if (cname == n->classname && mname == n->methodname &&
- desc == n->descriptor && isstatic == n->isstatic)
- return n->func;
- }
+ if (treenmn->name < nmn->name)
+ return -1;
+ else if (treenmn->name > nmn->name)
+ return 1;
- /* no function was found, throw exception */
+ if (treenmn->descriptor < nmn->descriptor)
+ return -1;
+ else if (treenmn->descriptor > nmn->descriptor)
+ return 1;
- *exceptionptr =
- new_exception_utfmessage(string_java_lang_UnsatisfiedLinkError,
- mname);
+ /* all pointers are equal, we have found the entry */
- return NULL;
+ return 0;
}
-#endif /* defined(WITH_STATIC_CLASSPATH) */
/* native_make_overloaded_function *********************************************
*******************************************************************************/
#if !defined(WITH_STATIC_CLASSPATH)
-static char *native_make_overloaded_function(char *name, utf *desc)
+static utf *native_make_overloaded_function(utf *name, utf *descriptor)
{
char *newname;
s4 namelen;
char *utf_ptr;
u2 c;
s4 i;
+ s4 dumpsize;
+ utf *u;
+
+ /* mark memory */
+
+ dumpsize = dump_size();
- utf_ptr = desc->text;
- namelen = strlen(name) + strlen("__") + strlen("0");
+ utf_ptr = descriptor->text;
+ namelen = strlen(name->text) + strlen("__") + strlen("0");
/* calculate additional length */
}
}
-
/* reallocate memory */
- i = strlen(name);
+ i = strlen(name->text);
newname = DMNEW(char, namelen);
- MCOPY(newname, name, char, i);
+ MCOPY(newname, name->text, char, i);
- utf_ptr = desc->text;
+ utf_ptr = descriptor->text;
newname[i++] = '_';
newname[i++] = '_';
newname[i] = '\0';
- return newname;
+ /* make a utf-string */
+
+ u = utf_new_char(newname);
+
+ /* release memory */
+
+ dump_release(dumpsize);
+
+ return u;
}
}
-/* native_resolve_function *****************************************************
+/* native_method_symbol ********************************************************
- Resolves a native function, maybe from a dynamic library.
+ Generate a method-symbol string out of the class name and the
+ method name.
*******************************************************************************/
-functionptr native_resolve_function(methodinfo *m)
+static utf *native_method_symbol(utf *classname, utf *methodname)
{
- lt_ptr sym;
- char *name;
- char *newname;
- s4 namelen;
- char *utf_ptr;
- char *utf_endptr;
- u2 c;
- u4 pos;
- s4 dumpsize;
- hashtable_library_loader_entry *le;
- hashtable_library_name_entry *ne;
- u4 key; /* hashkey */
- u4 slot; /* slot in hashtable */
+ char *name;
+ s4 namelen;
+ char *utf_ptr;
+ char *utf_endptr;
+ u2 c;
+ u4 pos;
+ s4 dumpsize;
+ utf *u;
- /* verbose output */
+ /* mark memory */
+
+ dumpsize = dump_size();
- if (opt_verbosejni) {
- printf("[Dynamic-linking native method ");
- utf_display_printable_ascii_classname(m->class->name);
- printf(".");
- utf_display_printable_ascii(m->name);
- printf(" ... ");
- }
-
/* Calculate length of native function name. We multiply the
class and method name length by 6 as this is the maxium
escape-sequence that can be generated (unicode). */
- namelen = strlen("Java_") +
- utf_get_number_of_u2s(m->class->name) * 6 +
+ namelen =
+ strlen("Java_") +
+ utf_get_number_of_u2s(classname) * 6 +
strlen("_") +
- utf_get_number_of_u2s(m->name) * 6 +
+ utf_get_number_of_u2s(methodname) * 6 +
strlen("0");
/* allocate memory */
- dumpsize = dump_size();
-
name = DMNEW(char, namelen);
/* generate name of native functions */
strcpy(name, "Java_");
pos = strlen("Java_");
- utf_ptr = m->class->name->text;
- utf_endptr = UTF_END(m->class->name);
+ utf_ptr = classname->text;
+ utf_endptr = UTF_END(classname);
for (; utf_ptr < utf_endptr; utf_ptr++, pos++) {
c = *utf_ptr;
name[pos++] = '_';
- utf_ptr = m->name->text;
- utf_endptr = UTF_END(m->name);
+ utf_ptr = methodname->text;
+ utf_endptr = UTF_END(methodname);
for (; utf_ptr < utf_endptr; utf_ptr++, pos++) {
c = *utf_ptr;
assert(pos <= namelen);
- /* generate overloaded function (having the types in it's name) */
+ /* make a utf-string */
- newname = native_make_overloaded_function(name, m->descriptor);
+ u = utf_new_char(name);
- /* check the library hash entries of the classloader of the
- methods's class */
+ /* release memory */
+
+ dump_release(dumpsize);
+
+ return u;
+}
+
+
+/* native_method_register ******************************************************
+
+ Register a native method in the native method table.
+
+*******************************************************************************/
+
+void native_method_register(utf *classname, const JNINativeMethod *methods,
+ int32_t count)
+{
+ native_methods_node_t *nmn;
+ utf *name;
+ utf *descriptor;
+ int32_t i;
+
+ /* insert all methods passed */
+
+ for (i = 0; i < count; i++) {
+ if (opt_verbosejni) {
+ printf("[Registering JNI native method ");
+ utf_display_printable_ascii_classname(classname);
+ printf(".%s]\n", methods[i].name);
+ }
+
+ /* generate the utf8 names */
- sym = NULL;
+ name = utf_new_char(methods[i].name);
+ descriptor = utf_new_char(methods[i].signature);
+
+ /* allocate a new tree node */
+
+ nmn = NEW(native_methods_node_t);
+
+ nmn->classname = classname;
+ nmn->name = name;
+ nmn->descriptor = descriptor;
+ nmn->function = (functionptr) (ptrint) methods[i].fnPtr;
+
+ /* insert the method into the tree */
+
+ avl_insert(tree_native_methods, nmn);
+ }
+}
+
+
+/* native_method_find **********************************************************
+
+ Find a native method in the native method table.
+
+*******************************************************************************/
+
+static functionptr native_method_find(methodinfo *m)
+{
+ native_methods_node_t tmpnmn;
+ native_methods_node_t *nmn;
+
+ /* fill the temporary structure used for searching the tree */
+
+ tmpnmn.classname = m->class->name;
+ tmpnmn.name = m->name;
+ tmpnmn.descriptor = m->descriptor;
+
+ /* find the entry in the AVL-tree */
+
+ nmn = avl_find(tree_native_methods, &tmpnmn);
+
+ if (nmn == NULL)
+ return NULL;
+
+ return nmn->function;
+}
+
+
+/* native_library_open *********************************************************
+
+ Open a native library with the given utf8 name.
+
+*******************************************************************************/
+
+#if defined(ENABLE_LTDL)
+lt_dlhandle native_library_open(utf *filename)
+{
+ lt_dlhandle handle;
+
+ if (opt_verbosejni) {
+ printf("[Loading native library ");
+ utf_display_printable_ascii(filename);
+ printf(" ... ");
+ }
+
+ /* try to open the library */
+
+ handle = lt_dlopen(filename->text);
+
+ if (handle == NULL) {
+ if (opt_verbose) {
+ log_start();
+ log_print("native_library_load: lt_dlopen failed: ");
+ log_print(lt_dlerror());
+ log_finish();
+ }
+
+ return NULL;
+ }
+
+ return handle;
+}
+#endif
+
+
+/* native_library_add **********************************************************
+
+ Adds an entry to the native library hashtable.
+
+*******************************************************************************/
+
+#if defined(ENABLE_LTDL)
+void native_library_add(utf *filename, classloader *loader, lt_dlhandle handle)
+{
+ hashtable_library_loader_entry *le;
+ hashtable_library_name_entry *ne; /* library name */
+ u4 key; /* hashkey */
+ u4 slot; /* slot in hashtable */
+
+ LOCK_MONITOR_ENTER(hashtable_library->header);
/* normally addresses are aligned to 4, 8 or 16 bytes */
- key = ((u4) (ptrint) m->class->classloader) >> 4; /* align to 16-byte */
+ key = ((u4) (ptrint) loader) >> 4; /* align to 16-byte boundaries */
slot = key & (hashtable_library->size - 1);
le = hashtable_library->ptr[slot];
- /* iterate through loaders in this hash slot */
+ /* search external hash chain for the entry */
- while ((le != NULL) && (sym == NULL)) {
- /* iterate through names in this loader */
+ while (le) {
+ if (le->loader == loader)
+ break;
- ne = le->namelink;
-
- while ((ne != NULL) && (sym == NULL)) {
- sym = lt_dlsym(ne->handle, name);
+ le = le->hashlink; /* next element in external chain */
+ }
- if (sym == NULL)
- sym = lt_dlsym(ne->handle, newname);
+ /* no loader found? create a new entry */
- ne = ne->hashlink;
- }
+ if (le == NULL) {
+ le = NEW(hashtable_library_loader_entry);
- le = le->hashlink;
+ le->loader = loader;
+ le->namelink = NULL;
+
+ /* insert entry into hashtable */
+
+ le->hashlink =
+ (hashtable_library_loader_entry *) hashtable_library->ptr[slot];
+ hashtable_library->ptr[slot] = le;
+
+ /* update number of hashtable-entries */
+
+ hashtable_library->entries++;
}
- if (sym != NULL)
- if (opt_verbosejni)
- printf("JNI ]\n");
+ /* search for library name */
- /* If not found, try to find the native function symbol in the
- main program. */
+ ne = le->namelink;
- if (sym == NULL) {
- sym = lt_dlsym(mainhandle, name);
+ while (ne) {
+ if (ne->name == filename) {
+ LOCK_MONITOR_EXIT(hashtable_library->header);
- if (sym == NULL)
- sym = lt_dlsym(mainhandle, newname);
+ return;
+ }
- if (sym != NULL)
- if (opt_verbosejni)
- printf("internal ]\n");
+ ne = ne->hashlink; /* next element in external chain */
}
+ /* not found? add the library name to the classloader */
-#if defined(ENABLE_JVMTI)
- /* fire Native Method Bind event */
- if (jvmti) jvmti_NativeMethodBind(m, sym, &sym);
+ ne = NEW(hashtable_library_name_entry);
+
+ ne->name = filename;
+ ne->handle = handle;
+
+ /* insert entry into external chain */
+
+ ne->hashlink = le->namelink;
+ le->namelink = ne;
+
+ LOCK_MONITOR_EXIT(hashtable_library->header);
+}
#endif
- /* no symbol found? throw exception */
- if (sym == NULL) {
- if (opt_verbosejni)
- printf("failed ]\n");
+/* native_library_find *********************************************************
- exceptions_throw_unsatisfiedlinkerror(m->name);
+ Find an entry in the native library hashtable.
+
+*******************************************************************************/
+
+#if defined(ENABLE_LTDL)
+hashtable_library_name_entry *native_library_find(utf *filename,
+ classloader *loader)
+{
+ hashtable_library_loader_entry *le;
+ hashtable_library_name_entry *ne; /* library name */
+ u4 key; /* hashkey */
+ u4 slot; /* slot in hashtable */
+
+ /* normally addresses are aligned to 4, 8 or 16 bytes */
+
+ key = ((u4) (ptrint) loader) >> 4; /* align to 16-byte boundaries */
+ slot = key & (hashtable_library->size - 1);
+ le = hashtable_library->ptr[slot];
+
+ /* search external hash chain for the entry */
+
+ while (le) {
+ if (le->loader == loader)
+ break;
+
+ le = le->hashlink; /* next element in external chain */
}
- /* release memory */
+ /* no loader found? return NULL */
- dump_release(dumpsize);
+ if (le == NULL)
+ return NULL;
+
+ /* search for library name */
+
+ ne = le->namelink;
- return (functionptr) (ptrint) sym;
+ while (ne) {
+ if (ne->name == filename)
+ return ne;
+
+ ne = ne->hashlink; /* next element in external chain */
+ }
+
+ /* return entry, if no entry was found, ne is NULL */
+
+ return ne;
}
#endif /* !defined(WITH_STATIC_CLASSPATH) */
-/* native_new_and_init *********************************************************
+/* native_findfunction *********************************************************
+
+ Looks up a method (must have the same class name, method name,
+ descriptor and 'static'ness) and returns a function pointer to it.
+ Returns: function pointer or NULL (if there is no such method)
+
+ Remark: For faster operation, the names/descriptors are converted
+ from C strings to Unicode the first time this function is called.
- Creates a new object on the heap and calls the initializer.
- Returns the object pointer or NULL if memory is exhausted.
-
*******************************************************************************/
-java_objectheader *native_new_and_init(classinfo *c)
+#if defined(WITH_STATIC_CLASSPATH)
+functionptr native_findfunction(utf *cname, utf *mname, utf *desc,
+ bool isstatic)
{
- methodinfo *m;
- java_objectheader *o;
+ /* entry of table for fast string comparison */
+ struct nativecompref *n;
+ s4 i;
- if (c == NULL)
- vm_abort("native_new_and_init: c == NULL");
+ isstatic = isstatic ? true : false;
+
+ if (!nativecompdone) {
+ for (i = 0; i < NATIVETABLESIZE; i++) {
+ nativecomptable[i].classname =
+ utf_new_char(nativetable[i].classname);
- /* create object */
+ nativecomptable[i].methodname =
+ utf_new_char(nativetable[i].methodname);
- o = builtin_new(c);
-
- if (o == NULL)
- return NULL;
+ nativecomptable[i].descriptor =
+ utf_new_char(nativetable[i].descriptor);
- /* try to find the initializer */
+ nativecomptable[i].isstatic = nativetable[i].isstatic;
+ nativecomptable[i].func = nativetable[i].func;
+ }
- m = class_findmethod(c, utf_init, utf_void__void);
-
- /* ATTENTION: returning the object here is ok, since the class may
- not have an initializer */
+ nativecompdone = true;
+ }
- if (m == NULL)
- return o;
+ for (i = 0; i < NATIVETABLESIZE; i++) {
+ n = &(nativecomptable[i]);
- /* call initializer */
+ if (cname == n->classname && mname == n->methodname &&
+ desc == n->descriptor && isstatic == n->isstatic)
+ return n->func;
+ }
- (void) vm_call_method(m, o);
+ /* no function was found, throw exception */
- return o;
+ exceptions_throw_unsatisfiedlinkerror(mname);
+
+ return NULL;
}
+#endif /* defined(WITH_STATIC_CLASSPATH) */
+
+
+/* native_resolve_function *****************************************************
+ Resolves a native function, maybe from a dynamic library.
-java_objectheader *native_new_and_init_string(classinfo *c, java_objectheader *s)
+*******************************************************************************/
+
+functionptr native_resolve_function(methodinfo *m)
{
- methodinfo *m;
- java_objectheader *o;
+ classloader *cl;
+ utf *name;
+ utf *newname;
+ functionptr f;
+#if defined(ENABLE_LTDL)
+ hashtable_library_loader_entry *le;
+ hashtable_library_name_entry *ne;
+ u4 key; /* hashkey */
+ u4 slot; /* slot in hashtable */
+#endif
+#if defined(WITH_CLASSPATH_SUN)
+ methodinfo *method_findNative;
+ java_handle_t *s;
+#endif
- if (c == NULL)
- vm_abort("native_new_and_init_string: c == NULL");
+ cl = m->class->classloader;
- /* create object */
+ /* verbose output */
- o = builtin_new(c);
+ if (opt_verbosejni) {
+ printf("[Dynamic-linking native method ");
+ utf_display_printable_ascii_classname(m->class->name);
+ printf(".");
+ utf_display_printable_ascii(m->name);
+ printf(" ... ");
+ }
- if (o == NULL)
- return NULL;
+ /* generate method symbol string */
- /* find initializer */
+ name = native_method_symbol(m->class->name, m->name);
- m = class_resolveclassmethod(c,
- utf_init,
- utf_java_lang_String__void,
- NULL,
- true);
+ /* generate overloaded function (having the types in it's name) */
- /* initializer not found */
+ newname = native_make_overloaded_function(name, m->descriptor);
- if (m == NULL)
- return NULL;
+ /* check the library hash entries of the classloader of the
+ methods's class */
- /* call initializer */
+ f = NULL;
- (void) vm_call_method(m, o, s);
+#if defined(ENABLE_LTDL)
+ /* normally addresses are aligned to 4, 8 or 16 bytes */
- return o;
-}
+ key = ((u4) (ptrint) cl) >> 4; /* align to 16-byte */
+ slot = key & (hashtable_library->size - 1);
+ le = hashtable_library->ptr[slot];
+ /* iterate through loaders in this hash slot */
-java_objectheader *native_new_and_init_int(classinfo *c, s4 i)
-{
- methodinfo *m;
- java_objectheader *o;
+ while ((le != NULL) && (f == NULL)) {
+ /* iterate through names in this loader */
- if (c == NULL)
- vm_abort("native_new_and_init_int: c == NULL");
+ ne = le->namelink;
+
+ while ((ne != NULL) && (f == NULL)) {
+ f = (functionptr) (ptrint) lt_dlsym(ne->handle, name->text);
- /* create object */
+ if (f == NULL)
+ f = (functionptr) (ptrint) lt_dlsym(ne->handle, newname->text);
- o = builtin_new(c);
-
- if (o == NULL)
- return NULL;
+ ne = ne->hashlink;
+ }
- /* find initializer */
+ le = le->hashlink;
+ }
- m = class_resolveclassmethod(c, utf_init, utf_int__void, NULL, true);
+# if defined(WITH_CLASSPATH_SUN)
+ if (f == NULL) {
+ /* We can resolve the function directly from
+ java.lang.ClassLoader as it's a static function. */
+ /* XXX should be done in native_init */
- /* initializer not found */
+ method_findNative =
+ class_resolveclassmethod(class_java_lang_ClassLoader,
+ utf_findNative,
+ utf_java_lang_ClassLoader_java_lang_String__J,
+ class_java_lang_ClassLoader,
+ true);
- if (m == NULL)
- return NULL;
+ if (method_findNative == NULL)
+ return NULL;
- /* call initializer */
+ /* try the normal name */
- (void) vm_call_method(m, o, i);
+ s = javastring_new(name);
- return o;
+ f = (functionptr) (intptr_t) vm_call_method_long(method_findNative,
+ NULL, cl, s);
+
+ /* if not found, try the mangled name */
+
+ if (f == NULL) {
+ s = javastring_new(newname);
+
+ f = (functionptr) (intptr_t) vm_call_method_long(method_findNative,
+ NULL, cl, s);
+ }
+ }
+# endif
+
+ if (f != NULL)
+ if (opt_verbosejni)
+ printf("JNI ]\n");
+#endif
+
+ /* If not found, try to find the native function symbol in the
+ main program. */
+
+ if (f == NULL) {
+ f = native_method_find(m);
+
+ if (f != NULL)
+ if (opt_verbosejni)
+ printf("internal ]\n");
+ }
+
+#if defined(ENABLE_JVMTI)
+ /* fire Native Method Bind event */
+ if (jvmti) jvmti_NativeMethodBind(m, f, &f);
+#endif
+
+ /* no symbol found? throw exception */
+
+ if (f == NULL) {
+ if (opt_verbosejni)
+ printf("failed ]\n");
+
+ exceptions_throw_unsatisfiedlinkerror(m->name);
+ }
+
+ return f;
}
+#endif /* !defined(WITH_STATIC_CLASSPATH) */
-java_objectheader *native_new_and_init_throwable(classinfo *c, java_objectheader *t)
+/* native_new_and_init *********************************************************
+
+ Creates a new object on the heap and calls the initializer.
+ Returns the object pointer or NULL if memory is exhausted.
+
+*******************************************************************************/
+
+java_handle_t *native_new_and_init(classinfo *c)
{
- java_objectheader *o;
- methodinfo *m;
+ methodinfo *m;
+ java_handle_t *o;
if (c == NULL)
- vm_abort("native_new_and_init_throwable: c == NULL");
+ vm_abort("native_new_and_init: c == NULL");
/* create object */
if (o == NULL)
return NULL;
- /* find initializer */
+ /* try to find the initializer */
- m = class_findmethod(c, utf_init, utf_java_lang_Throwable__void);
+ m = class_findmethod(c, utf_init, utf_void__void);
- /* initializer not found */
+ /* ATTENTION: returning the object here is ok, since the class may
+ not have an initializer */
if (m == NULL)
- return NULL;
+ return o;
/* call initializer */
- (void) vm_call_method(m, o, t);
+ (void) vm_call_method(m, o);
return o;
}
-/* native_class_getdeclaredannotations *****************************************
-
- Implementation for
- java.lang.Class.getDeclaredAnnotations(Ljava/lang/Class;)[Ljava/lang/annotation/Annotation;
-
-*******************************************************************************/
-
-#if defined(ENABLE_JAVASE)
-java_objectarray *native_class_getdeclaredannotations(classinfo *c)
+java_handle_t *native_new_and_init_string(classinfo *c, java_handle_t *s)
{
- java_objectarray *oa;
- s4 count;
- s4 i;
+ methodinfo *m;
+ java_handle_t *o;
+
+ if (c == NULL)
+ vm_abort("native_new_and_init_string: c == NULL");
- classinfo *class_java_lang_annotation_Annotation;
+ /* create object */
- /* create Annotation-array */
+ o = builtin_new(c);
- /* XXX should we cache that class? */
- if (!(class_java_lang_annotation_Annotation =
- load_class_bootstrap(utf_new_char("java/lang/annotation/Annotation"))))
+ if (o == NULL)
return NULL;
- count = c->runtimevisibleannotationscount;
+ /* find initializer */
+
+ m = class_findmethod(c, utf_init, utf_java_lang_String__void);
- oa = builtin_anewarray(count, class_java_lang_annotation_Annotation);
+ /* initializer not found */
- if (oa == NULL)
+ if (m == NULL)
return NULL;
- /* fill the annotations */
+ /* call initializer */
- for (i = 0; i < count; i++) {
- }
+ (void) vm_call_method(m, o, s);
- return oa;
+ return o;
}
-#endif
/*
projects / cacao.git / blobdiff