/* src/native/native.c - table of native functions
- Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
+ Copyright (C) 1996-2005, 2006, 2007 R. Grafl, A. Krall, C. Kruegel,
C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
J. Wenninger, Institut f. Computersprachen - TU Wien
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
- Contact: cacao@cacaojvm.org
-
- Authors: Reinhard Grafl
- Roman Obermaisser
- Andreas Krall
-
- Changes: Christian Thalinger
-
- $Id: native.c 5810 2006-10-20 13:54:54Z twisti $
+ $Id: native.c 8299 2007-08-13 08:41:18Z michi $
*/
#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_Throwable.h"
-#if defined(ENABLE_THREADS)
-# include "threads/native/lock.h"
-#else
-# include "threads/none/lock.h"
-#endif
+#include "native/vm/nativevm.h"
+
+#include "threads/lock-common.h"
+#include "toolbox/avl.h"
+#include "toolbox/hashtable.h"
#include "toolbox/logging.h"
+
#include "vm/builtin.h"
#include "vm/exceptions.h"
#include "vm/global.h"
-#include "vm/hashtable.h"
-#include "vm/loader.h"
-#include "vm/options.h"
-#include "vm/resolve.h"
#include "vm/stringlocal.h"
#include "vm/vm.h"
+
#include "vm/jit/asmpart.h"
#include "vm/jit/jit.h"
+#include "vmcore/loader.h"
+#include "vmcore/options.h"
+#include "vm/resolve.h"
+
#if defined(ENABLE_JVMTI)
#include "native/jvmti/cacaodbg.h"
#endif
/* include table of native functions ******************************************/
-#include "native/include/java_lang_Cloneable.h"
-#include "native/include/java_util_Properties.h"
-#include "native/include/java_io_InputStream.h"
-#include "native/include/java_io_PrintStream.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_Class.h"
-#include "native/include/java_lang_Object.h"
-#include "native/include/java_lang_VMClass.h"
-#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"
-
-#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
-
#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[] = {
- (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_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,
-
-#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
+# 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("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("lt_dlopenext failed: %s\n", lt_dlerror());
-# else
- if (!(mainhandle = lt_dlopen(NULL)))
- vm_abort("lt_dlopen failed: %s\n", lt_dlerror());
-# endif
+ vm_abort("native_init: lt_dlinit failed: %s\n", lt_dlerror());
/* initialize library hashtable, 10 entries should be enough */
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);
-
- nativecomptable[i].descriptor =
- utf_new_char(nativetable[i].descriptor);
+ const native_methods_node_t *treenmn;
+ const native_methods_node_t *nmn;
- 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 */
- utf_ptr = desc->text;
- namelen = strlen(name) + strlen("__") + strlen("0");
+ dumpsize = dump_size();
+
+ 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 */
- sym = NULL;
+ dump_release(dumpsize);
- /* normally addresses are aligned to 4, 8 or 16 bytes */
+ return u;
+}
- key = ((u4) (ptrint) m->class->classloader) >> 4; /* align to 16-byte */
- slot = key & (hashtable_library->size - 1);
- le = hashtable_library->ptr[slot];
- /* iterate through loaders in this hash slot */
+/* native_method_register ******************************************************
- while ((le != NULL) && (sym == NULL)) {
- /* iterate through names in this loader */
+ Register a native method in the native method table.
- ne = le->namelink;
-
- while ((ne != NULL) && (sym == NULL)) {
- sym = lt_dlsym(ne->handle, name);
+*******************************************************************************/
- if (sym == NULL)
- sym = lt_dlsym(ne->handle, newname);
+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);
+ }
- ne = ne->hashlink;
- }
+ /* generate the utf8 names */
- le = le->hashlink;
+ 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);
}
+}
- if (sym != NULL)
- if (opt_verbosejni)
- printf("JNI ]\n");
+/* native_method_find **********************************************************
- /* If not found, try to find the native function symbol in the
- main program. */
+ Find a native method in the native method table.
- if (sym == NULL) {
- sym = lt_dlsym(mainhandle, name);
+*******************************************************************************/
- if (sym == NULL)
- sym = lt_dlsym(mainhandle, newname);
+static functionptr native_method_find(methodinfo *m)
+{
+ native_methods_node_t tmpnmn;
+ native_methods_node_t *nmn;
- if (sym != NULL)
- if (opt_verbosejni)
- printf("internal ]\n");
- }
+ /* fill the temporary structure used for searching the tree */
+ tmpnmn.classname = m->class->name;
+ tmpnmn.name = m->name;
+ tmpnmn.descriptor = m->descriptor;
-#if defined(ENABLE_JVMTI)
- /* fire Native Method Bind event */
- if (jvmti) jvmti_NativeMethodBind(m, sym, &sym);
-#endif
+ /* find the entry in the AVL-tree */
- /* no symbol found? throw exception */
+ nmn = avl_find(tree_native_methods, &tmpnmn);
- if (sym == NULL) {
- if (opt_verbosejni)
- printf("failed ]\n");
+ 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;
- *exceptionptr =
- new_exception_utfmessage(string_java_lang_UnsatisfiedLinkError,
- m->name);
+ if (opt_verbosejni) {
+ printf("[Loading native library ");
+ utf_display_printable_ascii(filename);
+ printf(" ... ");
}
- /* release memory */
+ /* try to open the library */
- dump_release(dumpsize);
+ 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 (functionptr) (ptrint) sym;
+ return handle;
}
-#endif /* !defined(WITH_STATIC_CLASSPATH) */
+#endif
-/* native_new_and_init *********************************************************
+/* native_library_add **********************************************************
+
+ Adds an entry to the native library hashtable.
- 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(ENABLE_LTDL)
+void native_library_add(utf *filename, classloader *loader, lt_dlhandle handle)
{
- methodinfo *m;
- java_objectheader *o;
+ hashtable_classloader_entry *cle;
+ hashtable_library_loader_entry *le;
+ hashtable_library_name_entry *ne; /* library name */
+ u4 key; /* hashkey */
+ u4 slot; /* slot in hashtable */
- if (!c)
- return *exceptionptr;
+ LOCK_MONITOR_ENTER(hashtable_library->header);
- /* create object */
+ /* insert loader into the classloader hashtable */
- o = builtin_new(c);
-
- if (!o)
- return NULL;
+ cle = loader_hashtable_classloader_add(loader);
- /* try to find the initializer */
+ /* normally addresses are aligned to 4, 8 or 16 bytes */
- m = class_findmethod(c, utf_init, utf_void__void);
-
- /* ATTENTION: returning the object here is ok, since the class may
- not have an initializer */
+ key = ((u4) (ptrint) cle) >> 4; /* align to 16-byte boundaries */
+ slot = key & (hashtable_library->size - 1);
+ le = hashtable_library->ptr[slot];
- if (!m)
- return o;
+ /* search external hash chain for the entry */
- /* call initializer */
+ while (le) {
+ if (le->cle == cle)
+ break;
- (void) vm_call_method(m, o);
+ le = le->hashlink; /* next element in external chain */
+ }
- return o;
-}
+ /* no loader found? create a new entry */
+ if (le == NULL) {
+ le = NEW(hashtable_library_loader_entry);
-java_objectheader *native_new_and_init_string(classinfo *c, java_lang_String *s)
-{
- methodinfo *m;
- java_objectheader *o;
+ le->cle = cle;
+ le->namelink = NULL;
- if (!c)
- return *exceptionptr;
+ /* insert entry into hashtable */
- /* create object */
+ le->hashlink =
+ (hashtable_library_loader_entry *) hashtable_library->ptr[slot];
+ hashtable_library->ptr[slot] = le;
- o = builtin_new(c);
+ /* update number of hashtable-entries */
- if (!o)
- return NULL;
+ hashtable_library->entries++;
+ }
- /* find initializer */
- m = class_resolveclassmethod(c,
- utf_init,
- utf_java_lang_String__void,
- NULL,
- true);
+ /* search for library name */
- /* initializer not found */
+ ne = le->namelink;
- if (!m)
- return NULL;
+ while (ne) {
+ if (ne->name == filename) {
+ LOCK_MONITOR_EXIT(hashtable_library->header);
- /* call initializer */
+ return;
+ }
- (void) vm_call_method(m, o, s);
+ ne = ne->hashlink; /* next element in external chain */
+ }
- return o;
+ /* not found? add the library name to the classloader */
+
+ 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
+
+/* native_library_find *********************************************************
-java_objectheader *native_new_and_init_int(classinfo *c, s4 i)
+ Find an entry in the native library hashtable.
+
+*******************************************************************************/
+
+#if defined(ENABLE_LTDL)
+hashtable_library_name_entry *native_library_find(utf *filename,
+ classloader *loader)
{
- methodinfo *m;
- java_objectheader *o;
+ hashtable_classloader_entry *cle;
+ hashtable_library_loader_entry *le;
+ hashtable_library_name_entry *ne; /* library name */
+ u4 key; /* hashkey */
+ u4 slot; /* slot in hashtable */
- if (!c)
- return *exceptionptr;
+ /* search loader in the classloader hashtable */
- /* create object */
+ cle = loader_hashtable_classloader_find(loader);
- o = builtin_new(c);
-
- if (!o)
+ if (!cle)
return NULL;
- /* find initializer */
+ /* normally addresses are aligned to 4, 8 or 16 bytes */
+
+ key = ((u4) (ptrint) cle) >> 4; /* align to 16-byte boundaries */
+ slot = key & (hashtable_library->size - 1);
+ le = hashtable_library->ptr[slot];
- m = class_resolveclassmethod(c, utf_init, utf_int__void, NULL, true);
+ /* search external hash chain for the entry */
- /* initializer not found */
+ while (le) {
+ if (le->cle == cle)
+ break;
- if (!m)
+ le = le->hashlink; /* next element in external chain */
+ }
+
+ /* no loader found? return NULL */
+
+ if (le == NULL)
return NULL;
- /* call initializer */
+ /* search for library name */
- (void) vm_call_method(m, o, i);
+ ne = le->namelink;
- return o;
+ 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) */
-java_objectheader *native_new_and_init_throwable(classinfo *c, java_lang_Throwable *t)
-{
- methodinfo *m;
- java_objectheader *o;
+/* native_findfunction *********************************************************
- if (!c)
- return *exceptionptr;
+ 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)
- /* create object */
+ Remark: For faster operation, the names/descriptors are converted
+ from C strings to Unicode the first time this function is called.
- o = builtin_new(c);
+*******************************************************************************/
+
+#if defined(WITH_STATIC_CLASSPATH)
+functionptr native_findfunction(utf *cname, utf *mname, utf *desc,
+ bool isstatic)
+{
+ /* entry of table for fast string comparison */
+ struct nativecompref *n;
+ s4 i;
+
+ isstatic = isstatic ? true : false;
- if (!o)
- return NULL;
+ if (!nativecompdone) {
+ for (i = 0; i < NATIVETABLESIZE; i++) {
+ nativecomptable[i].classname =
+ utf_new_char(nativetable[i].classname);
- /* find initializer */
+ nativecomptable[i].methodname =
+ utf_new_char(nativetable[i].methodname);
- m = class_findmethod(c, utf_init, utf_java_lang_Throwable__void);
-
- /* initializer not found */
+ nativecomptable[i].descriptor =
+ utf_new_char(nativetable[i].descriptor);
- if (!m)
- return NULL;
+ nativecomptable[i].isstatic = nativetable[i].isstatic;
+ nativecomptable[i].func = nativetable[i].func;
+ }
- /* call initializer */
+ nativecompdone = true;
+ }
- (void) vm_call_method(m, o, t);
+ for (i = 0; i < NATIVETABLESIZE; i++) {
+ n = &(nativecomptable[i]);
- return o;
+ if (cname == n->classname && mname == n->methodname &&
+ desc == n->descriptor && isstatic == n->isstatic)
+ return n->func;
+ }
+
+ /* no function was found, throw exception */
+
+ exceptions_throw_unsatisfiedlinkerror(mname);
+
+ return NULL;
}
+#endif /* defined(WITH_STATIC_CLASSPATH) */
-/* native_get_parametertypes ***************************************************
+/* native_resolve_function *****************************************************
- Use the descriptor of a method to generate a java/lang/Class array
- which contains the classes of the parametertypes of the method.
+ Resolves a native function, maybe from a dynamic library.
*******************************************************************************/
-java_objectarray *native_get_parametertypes(methodinfo *m)
+functionptr native_resolve_function(methodinfo *m)
{
- methoddesc *md;
- typedesc *paramtypes;
- s4 paramcount;
- java_objectarray *oa;
- s4 i;
+ 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
+
+ cl = m->class->classloader;
+
+ /* verbose output */
+
+ if (opt_verbosejni) {
+ printf("[Dynamic-linking native method ");
+ utf_display_printable_ascii_classname(m->class->name);
+ printf(".");
+ utf_display_printable_ascii(m->name);
+ printf(" ... ");
+ }
+
+ /* generate method symbol string */
+
+ name = native_method_symbol(m->class->name, m->name);
+
+ /* generate overloaded function (having the types in it's name) */
+
+ newname = native_make_overloaded_function(name, m->descriptor);
+
+ /* check the library hash entries of the classloader of the
+ methods's class */
+
+ f = NULL;
+
+#if defined(ENABLE_LTDL)
+ /* normally addresses are aligned to 4, 8 or 16 bytes */
- md = m->parseddesc;
+ 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 */
- /* is the descriptor fully parsed? */
+ while ((le != NULL) && (f == NULL)) {
+ /* iterate through names in this loader */
- if (!m->parseddesc->params)
- if (!descriptor_params_from_paramtypes(md, m->flags))
+ ne = le->namelink;
+
+ while ((ne != NULL) && (f == NULL)) {
+ f = (functionptr) (ptrint) lt_dlsym(ne->handle, name->text);
+
+ if (f == NULL)
+ f = (functionptr) (ptrint) lt_dlsym(ne->handle, newname->text);
+
+ ne = ne->hashlink;
+ }
+
+ le = le->hashlink;
+ }
+
+# 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 */
+
+ method_findNative =
+ class_resolveclassmethod(class_java_lang_ClassLoader,
+ utf_findNative,
+ utf_java_lang_ClassLoader_java_lang_String__J,
+ class_java_lang_ClassLoader,
+ true);
+
+ if (method_findNative == NULL)
return NULL;
- paramtypes = md->paramtypes;
- paramcount = md->paramcount;
+ /* try the normal name */
+
+ s = javastring_new(name);
+
+ f = (functionptr) (intptr_t) vm_call_method_long(method_findNative,
+ NULL, cl, s);
- /* skip `this' pointer */
+ /* if not found, try the mangled name */
- if (!(m->flags & ACC_STATIC)) {
- paramtypes++;
- paramcount--;
+ 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
- /* create class-array */
+ /* If not found, try to find the native function symbol in the
+ main program. */
- oa = builtin_anewarray(paramcount, class_java_lang_Class);
+ if (f == NULL) {
+ f = native_method_find(m);
- if (!oa)
- return NULL;
+ if (f != NULL)
+ if (opt_verbosejni)
+ printf("internal ]\n");
+ }
- /* get classes */
+#if defined(ENABLE_JVMTI)
+ /* fire Native Method Bind event */
+ if (jvmti) jvmti_NativeMethodBind(m, f, &f);
+#endif
- for (i = 0; i < paramcount; i++)
- if (!resolve_class_from_typedesc(¶mtypes[i], true, false,
- (classinfo **) &oa->data[i]))
- return NULL;
+ /* no symbol found? throw exception */
- return oa;
-}
+ if (f == NULL) {
+ if (opt_verbosejni)
+ printf("failed ]\n");
+
+ exceptions_throw_unsatisfiedlinkerror(m->name);
+ }
+ return f;
+}
+#endif /* !defined(WITH_STATIC_CLASSPATH) */
-/* native_get_exceptiontypes ***************************************************
- Get the exceptions which can be thrown by a method.
+/* 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_objectarray *native_get_exceptiontypes(methodinfo *m)
+java_handle_t *native_new_and_init(classinfo *c)
{
- java_objectarray *oa;
- classinfo *c;
- u2 i;
+ methodinfo *m;
+ java_handle_t *o;
- /* create class-array */
+ if (c == NULL)
+ vm_abort("native_new_and_init: c == NULL");
- oa = builtin_anewarray(m->thrownexceptionscount, class_java_lang_Class);
+ /* create object */
- if (!oa)
+ o = builtin_new(c);
+
+ if (o == NULL)
return NULL;
- for (i = 0; i < m->thrownexceptionscount; i++) {
- if (!resolve_classref_or_classinfo(NULL, m->thrownexceptions[i],
- resolveEager, true, false, &c))
- return NULL;
+ /* try to find the initializer */
- oa->data[i] = (java_objectheader *) c;
- }
+ m = class_findmethod(c, utf_init, utf_void__void);
+
+ /* ATTENTION: returning the object here is ok, since the class may
+ not have an initializer */
- return oa;
-}
+ if (m == NULL)
+ return o;
+ /* call initializer */
-/* native_get_returntype *******************************************************
+ (void) vm_call_method(m, o);
- Get the returntype class of a method.
+ return o;
+}
-*******************************************************************************/
-classinfo *native_get_returntype(methodinfo *m)
+java_handle_t *native_new_and_init_string(classinfo *c, java_handle_t *s)
{
- classinfo *c;
+ methodinfo *m;
+ java_handle_t *o;
+
+ if (c == NULL)
+ vm_abort("native_new_and_init_string: c == NULL");
+
+ /* create object */
+
+ o = builtin_new(c);
+
+ if (o == NULL)
+ return NULL;
- if (!resolve_class_from_typedesc(&(m->parseddesc->returntype), true, false,
- &c))
+ /* find initializer */
+
+ m = class_findmethod(c, utf_init, utf_java_lang_String__void);
+
+ /* initializer not found */
+
+ if (m == NULL)
return NULL;
- return c;
+ /* call initializer */
+
+ (void) vm_call_method(m, o, s);
+
+ return o;
}
projects / cacao.git / blobdiff