+++ /dev/null
-/* src/native/vm/gnu/java_lang_VMClassLoader.c
-
- Copyright (C) 1996-2005, 2006, 2007, 2008
- CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
-
- This file is part of CACAO.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2, or (at
- your option) any later version.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- 02110-1301, USA.
-
-*/
-
-
-#include "config.h"
-
-#include <assert.h>
-#include <stdint.h>
-#include <sys/stat.h>
-
-#include "mm/memory.h"
-
-#include "native/jni.h"
-#include "native/llni.h"
-#include "native/native.h"
-#include "native/include/java_lang_Class.h"
-#include "native/include/java_lang_String.h"
-#include "native/include/java_security_ProtectionDomain.h" /* required by... */
-#include "native/include/java_lang_ClassLoader.h"
-#include "native/include/java_util_Vector.h"
-#include "native/include/java_util_HashMap.h"
-#include "native/include/java_util_Map.h"
-#include "native/include/java_lang_Boolean.h"
-
-#include "native/include/java_lang_VMClassLoader.h"
-
-#include "toolbox/logging.h"
-#include "toolbox/list.h"
-
-#if defined(ENABLE_ASSERTION)
-#include "vm/assertion.h"
-#endif
-
-#include "vm/builtin.h"
-#include "vm/exceptions.h"
-#include "vm/initialize.h"
-#include "vm/primitive.h"
-#include "vm/stringlocal.h"
-#include "vm/vm.h"
-
-#include "vm/jit/asmpart.h"
-
-#include "vmcore/class.h"
-#include "vmcore/classcache.h"
-#include "vmcore/linker.h"
-#include "vmcore/loader.h"
-#include "vmcore/options.h"
-#include "vmcore/statistics.h"
-#include "vmcore/suck.h"
-#include "vmcore/zip.h"
-
-#if defined(ENABLE_JVMTI)
-#include "native/jvmti/cacaodbg.h"
-#endif
-
-/* native methods implemented by this file ************************************/
-
-static JNINativeMethod methods[] = {
- { "defineClass", "(Ljava/lang/ClassLoader;Ljava/lang/String;[BIILjava/security/ProtectionDomain;)Ljava/lang/Class;", (void *) (uintptr_t) &Java_java_lang_VMClassLoader_defineClass },
- { "getPrimitiveClass", "(C)Ljava/lang/Class;", (void *) (uintptr_t) &Java_java_lang_VMClassLoader_getPrimitiveClass },
- { "resolveClass", "(Ljava/lang/Class;)V", (void *) (uintptr_t) &Java_java_lang_VMClassLoader_resolveClass },
- { "loadClass", "(Ljava/lang/String;Z)Ljava/lang/Class;", (void *) (uintptr_t) &Java_java_lang_VMClassLoader_loadClass },
- { "nativeGetResources", "(Ljava/lang/String;)Ljava/util/Vector;", (void *) (uintptr_t) &Java_java_lang_VMClassLoader_nativeGetResources },
- { "defaultAssertionStatus", "()Z", (void *) (uintptr_t) &Java_java_lang_VMClassLoader_defaultAssertionStatus },
- { "defaultUserAssertionStatus", "()Z", (void *) (uintptr_t) &Java_java_lang_VMClassLoader_defaultUserAssertionStatus },
- { "packageAssertionStatus0", "(Ljava/lang/Boolean;Ljava/lang/Boolean;)Ljava/util/Map;", (void *) (uintptr_t) &Java_java_lang_VMClassLoader_packageAssertionStatus0 },
- { "classAssertionStatus0", "(Ljava/lang/Boolean;Ljava/lang/Boolean;)Ljava/util/Map;", (void *) (uintptr_t) &Java_java_lang_VMClassLoader_classAssertionStatus0 },
- { "findLoadedClass", "(Ljava/lang/ClassLoader;Ljava/lang/String;)Ljava/lang/Class;", (void *) (uintptr_t) &Java_java_lang_VMClassLoader_findLoadedClass },
-};
-
-
-/* _Jv_java_lang_VMClassLoader_init ********************************************
-
- Register native functions.
-
-*******************************************************************************/
-
-void _Jv_java_lang_VMClassLoader_init(void)
-{
- utf *u;
-
- u = utf_new_char("java/lang/VMClassLoader");
-
- native_method_register(u, methods, NATIVE_METHODS_COUNT);
-}
-
-
-/*
- * Class: java/lang/VMClassLoader
- * Method: defineClass
- * Signature: (Ljava/lang/ClassLoader;Ljava/lang/String;[BIILjava/security/ProtectionDomain;)Ljava/lang/Class;
- */
-JNIEXPORT java_lang_Class* JNICALL Java_java_lang_VMClassLoader_defineClass(JNIEnv *env, jclass clazz, java_lang_ClassLoader *cl, java_lang_String *name, java_handle_bytearray_t *data, int32_t offset, int32_t len, java_security_ProtectionDomain *pd)
-{
- utf *utfname;
- classinfo *c;
- classloader_t *loader;
- java_lang_Class *o;
-
-#if defined(ENABLE_JVMTI)
- jint new_class_data_len = 0;
- unsigned char* new_class_data = NULL;
-#endif
-
- /* check if data was passed */
-
- if (data == NULL) {
- exceptions_throw_nullpointerexception();
- return NULL;
- }
-
- /* check the indexes passed */
-
- if ((offset < 0) || (len < 0) || ((offset + len) > LLNI_array_size(data))) {
- exceptions_throw_arrayindexoutofboundsexception();
- return NULL;
- }
-
- /* add classloader to classloader hashtable */
-
- loader = loader_hashtable_classloader_add((java_handle_t *) cl);
-
- if (name != NULL) {
- /* convert '.' to '/' in java string */
-
- utfname = javastring_toutf((java_handle_t *) name, true);
- }
- else {
- utfname = NULL;
- }
-
-#if defined(ENABLE_JVMTI)
- /* XXX again this will not work because of the indirection cell for classloaders */
- assert(0);
- /* fire Class File Load Hook JVMTI event */
-
- if (jvmti)
- jvmti_ClassFileLoadHook(utfname, len, (unsigned char *) data->data,
- loader, (java_handle_t *) pd,
- &new_class_data_len, &new_class_data);
-#endif
-
- /* define the class */
-
-#if defined(ENABLE_JVMTI)
- /* check if the JVMTI wants to modify the class */
-
- if (new_class_data == NULL)
- c = class_define(utfname, loader, new_class_data_len, new_class_data, pd);
- else
-#endif
- c = class_define(utfname, loader, len, (uint8_t *) &LLNI_array_direct(data, offset), (java_handle_t *) pd);
-
- if (c == NULL)
- return NULL;
-
- /* for convenience */
-
- o = LLNI_classinfo_wrap(c);
-
- /* set ProtectionDomain */
-
- LLNI_field_set_ref(o, pd, pd);
-
- return o;
-}
-
-
-/*
- * Class: java/lang/VMClassLoader
- * Method: getPrimitiveClass
- * Signature: (C)Ljava/lang/Class;
- */
-JNIEXPORT java_lang_Class* JNICALL Java_java_lang_VMClassLoader_getPrimitiveClass(JNIEnv *env, jclass clazz, int32_t type)
-{
- classinfo *c;
-
- c = primitive_class_get_by_char(type);
-
- if (c == NULL) {
- exceptions_throw_classnotfoundexception(utf_null);
- return NULL;
- }
-
- return LLNI_classinfo_wrap(c);
-}
-
-
-/*
- * Class: java/lang/VMClassLoader
- * Method: resolveClass
- * Signature: (Ljava/lang/Class;)V
- */
-JNIEXPORT void JNICALL Java_java_lang_VMClassLoader_resolveClass(JNIEnv *env, jclass clazz, java_lang_Class *c)
-{
- classinfo *ci;
-
- ci = LLNI_classinfo_unwrap(c);
-
- if (!ci) {
- exceptions_throw_nullpointerexception();
- return;
- }
-
- /* link the class */
-
- if (!(ci->state & CLASS_LINKED))
- (void) link_class(ci);
-
- return;
-}
-
-
-/*
- * Class: java/lang/VMClassLoader
- * Method: loadClass
- * Signature: (Ljava/lang/String;Z)Ljava/lang/Class;
- */
-JNIEXPORT java_lang_Class* JNICALL Java_java_lang_VMClassLoader_loadClass(JNIEnv *env, jclass clazz, java_lang_String *name, int32_t resolve)
-{
- classinfo *c;
- utf *u;
-
- if (name == NULL) {
- exceptions_throw_nullpointerexception();
- return NULL;
- }
-
- /* create utf string in which '.' is replaced by '/' */
-
- u = javastring_toutf((java_handle_t *) name, true);
-
- /* load class */
-
- c = load_class_bootstrap(u);
-
- if (c == NULL)
- return NULL;
-
- /* resolve class -- if requested */
-
-/* if (resolve) */
- if (!link_class(c))
- return NULL;
-
- return LLNI_classinfo_wrap(c);
-}
-
-
-/*
- * Class: java/lang/VMClassLoader
- * Method: nativeGetResources
- * Signature: (Ljava/lang/String;)Ljava/util/Vector;
- */
-JNIEXPORT java_util_Vector* JNICALL Java_java_lang_VMClassLoader_nativeGetResources(JNIEnv *env, jclass clazz, java_lang_String *name)
-{
- java_handle_t *o; /* vector being created */
- methodinfo *m; /* "add" method of vector */
- java_handle_t *path; /* path to be added */
- list_classpath_entry *lce; /* classpath entry */
- utf *utfname; /* utf to look for */
- char *buffer; /* char buffer */
- char *namestart; /* start of name to use */
- char *tmppath; /* temporary buffer */
- int32_t namelen; /* length of name to use */
- int32_t searchlen; /* length of name to search */
- int32_t bufsize; /* size of buffer allocated */
- int32_t pathlen; /* name of path to assemble */
- struct stat buf; /* buffer for stat */
- jboolean ret; /* return value of "add" */
-
- /* get the resource name as utf string */
-
- utfname = javastring_toutf((java_handle_t *) name, false);
-
- if (utfname == NULL)
- return NULL;
-
- /* copy it to a char buffer */
-
- namelen = utf_bytes(utfname);
- searchlen = namelen;
- bufsize = namelen + strlen("0");
- buffer = MNEW(char, bufsize);
-
- utf_copy(buffer, utfname);
- namestart = buffer;
-
- /* skip leading '/' */
-
- if (namestart[0] == '/') {
- namestart++;
- namelen--;
- searchlen--;
- }
-
- /* remove trailing `.class' */
-
- if (namelen >= 6 && strcmp(namestart + (namelen - 6), ".class") == 0) {
- searchlen -= 6;
- }
-
- /* create a new needle to look for, if necessary */
-
- if (searchlen != bufsize-1) {
- utfname = utf_new(namestart, searchlen);
- if (utfname == NULL)
- goto return_NULL;
- }
-
- /* new Vector() */
-
- o = native_new_and_init(class_java_util_Vector);
-
- if (o == NULL)
- goto return_NULL;
-
- /* get Vector.add() method */
-
- m = class_resolveclassmethod(class_java_util_Vector,
- utf_add,
- utf_new_char("(Ljava/lang/Object;)Z"),
- NULL,
- true);
-
- if (m == NULL)
- goto return_NULL;
-
- /* iterate over all classpath entries */
-
- for (lce = list_first(list_classpath_entries); lce != NULL;
- lce = list_next(list_classpath_entries, lce)) {
- /* clear path pointer */
- path = NULL;
-
-#if defined(ENABLE_ZLIB)
- if (lce->type == CLASSPATH_ARCHIVE) {
-
- if (zip_find(lce, utfname)) {
- pathlen = strlen("jar:file://") + lce->pathlen + strlen("!/") +
- namelen + strlen("0");
-
- tmppath = MNEW(char, pathlen);
-
- sprintf(tmppath, "jar:file://%s!/%s", lce->path, namestart);
- path = javastring_new_from_utf_string(tmppath),
-
- MFREE(tmppath, char, pathlen);
- }
-
- } else {
-#endif /* defined(ENABLE_ZLIB) */
- pathlen = strlen("file://") + lce->pathlen + namelen + strlen("0");
-
- tmppath = MNEW(char, pathlen);
-
- sprintf(tmppath, "file://%s%s", lce->path, namestart);
-
- /* Does this file exist? */
-
- if (stat(tmppath + strlen("file://") - 1, &buf) == 0)
- if (!S_ISDIR(buf.st_mode))
- path = javastring_new_from_utf_string(tmppath);
-
- MFREE(tmppath, char, pathlen);
-#if defined(ENABLE_ZLIB)
- }
-#endif
-
- /* if a resource was found, add it to the vector */
-
- if (path != NULL) {
- ret = vm_call_method_int(m, o, path);
-
- if (exceptions_get_exception() != NULL)
- goto return_NULL;
-
- if (ret == 0)
- goto return_NULL;
- }
- }
-
- MFREE(buffer, char, bufsize);
-
- return (java_util_Vector *) o;
-
-return_NULL:
- MFREE(buffer, char, bufsize);
-
- return NULL;
-}
-
-
-/*
- * Class: java/lang/VMClassLoader
- * Method: defaultAssertionStatus
- * Signature: ()Z
- */
-JNIEXPORT int32_t JNICALL Java_java_lang_VMClassLoader_defaultAssertionStatus(JNIEnv *env, jclass clazz)
-{
-#if defined(ENABLE_ASSERTION)
- return assertion_system_enabled;
-#else
- return false;
-#endif
-}
-
-/*
- * Class: java/lang/VMClassLoader
- * Method: userAssertionStatus
- * Signature: ()Z
- */
-JNIEXPORT int32_t JNICALL Java_java_lang_VMClassLoader_defaultUserAssertionStatus(JNIEnv *env, jclass clazz)
-{
-#if defined(ENABLE_ASSERTION)
- return assertion_user_enabled;
-#else
- return false;
-#endif
-}
-
-/*
- * Class: java/lang/VMClassLoader
- * Method: packageAssertionStatus
- * Signature: ()Ljava_util_Map;
- */
-JNIEXPORT java_util_Map* JNICALL Java_java_lang_VMClassLoader_packageAssertionStatus0(JNIEnv *env, jclass clazz, java_lang_Boolean *jtrue, java_lang_Boolean *jfalse)
-{
- java_handle_t *hm;
-#if defined(ENABLE_ASSERTION)
- java_handle_t *js;
- methodinfo *m;
- assertion_name_t *item;
-#endif
-
- /* new HashMap() */
-
- hm = native_new_and_init(class_java_util_HashMap);
- if (hm == NULL) {
- return NULL;
- }
-
-#if defined(ENABLE_ASSERTION)
- /* if nothing todo, return now */
-
- if (assertion_package_count == 0) {
- return (java_util_Map *) hm;
- }
-
- /* get HashMap.put method */
-
- m = class_resolveclassmethod(class_java_util_HashMap,
- utf_put,
- utf_new_char("(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;"),
- NULL,
- true);
-
- if (m == NULL) {
- return NULL;
- }
-
- item = (assertion_name_t *)list_first(list_assertion_names);
-
- while (item != NULL) {
- if (item->package == false) {
- item = (assertion_name_t *)list_next(list_assertion_names, item);
- continue;
- }
-
- if (strcmp(item->name, "") == 0) {
- /* unnamed package wanted */
- js = NULL;
- }
- else {
- js = javastring_new_from_ascii(item->name);
- if (js == NULL) {
- return NULL;
- }
- }
-
- if (item->enabled == true) {
- vm_call_method(m, hm, js, jtrue);
- }
- else {
- vm_call_method(m, hm, js, jfalse);
- }
-
- item = (assertion_name_t *)list_next(list_assertion_names, item);
- }
-#endif
-
- return (java_util_Map *) hm;
-}
-
-/*
- * Class: java/lang/VMClassLoader
- * Method: classAssertionStatus
- * Signature: ()Ljava_util_Map;
- */
-JNIEXPORT java_util_Map* JNICALL Java_java_lang_VMClassLoader_classAssertionStatus0(JNIEnv *env, jclass clazz, java_lang_Boolean *jtrue, java_lang_Boolean *jfalse)
-{
- java_handle_t *hm;
-#if defined(ENABLE_ASSERTION)
- java_handle_t *js;
- methodinfo *m;
- assertion_name_t *item;
-#endif
-
- /* new HashMap() */
-
- hm = native_new_and_init(class_java_util_HashMap);
- if (hm == NULL) {
- return NULL;
- }
-
-#if defined(ENABLE_ASSERTION)
- /* if nothing todo, return now */
-
- if (assertion_class_count == 0) {
- return (java_util_Map *) hm;
- }
-
- /* get HashMap.put method */
-
- m = class_resolveclassmethod(class_java_util_HashMap,
- utf_put,
- utf_new_char("(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;"),
- NULL,
- true);
-
- if (m == NULL) {
- return NULL;
- }
-
- item = (assertion_name_t *)list_first(list_assertion_names);
-
- while (item != NULL) {
- if (item->package == true) {
- item = (assertion_name_t *)list_next(list_assertion_names, item);
- continue;
- }
-
- js = javastring_new_from_ascii(item->name);
- if (js == NULL) {
- return NULL;
- }
-
- if (item->enabled == true) {
- vm_call_method(m, hm, js, jtrue);
- }
- else {
- vm_call_method(m, hm, js, jfalse);
- }
-
- item = (assertion_name_t *)list_next(list_assertion_names, item);
- }
-#endif
-
- return (java_util_Map *) hm;
-}
-
-
-/*
- * Class: java/lang/VMClassLoader
- * Method: findLoadedClass
- * Signature: (Ljava/lang/ClassLoader;Ljava/lang/String;)Ljava/lang/Class;
- */
-JNIEXPORT java_lang_Class* JNICALL Java_java_lang_VMClassLoader_findLoadedClass(JNIEnv *env, jclass clazz, java_lang_ClassLoader *loader, java_lang_String *name)
-{
- classloader_t *cl;
- classinfo *c;
- utf *u;
-
- /* XXX is it correct to add the classloader to the hashtable here? */
-
- cl = loader_hashtable_classloader_add((java_handle_t *) loader);
-
- /* replace `.' by `/', this is required by the classcache */
-
- u = javastring_toutf((java_handle_t *) name, true);
-
- /* lookup for defining classloader */
-
- c = classcache_lookup_defined(cl, u);
-
- /* if not found, lookup for initiating classloader */
-
- if (c == NULL)
- c = classcache_lookup(cl, u);
-
- return LLNI_classinfo_wrap(c);
-}
-
-
-/*
- * These are local overrides for various environment variables in Emacs.
- * Please do not remove this and leave it at the end of the file, where
- * Emacs will automagically detect them.
- * ---------------------------------------------------------------------
- * Local variables:
- * mode: c
- * indent-tabs-mode: t
- * c-basic-offset: 4
- * tab-width: 4
- * End:
- * vim:noexpandtab:sw=4:ts=4:
- */
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