| /* |
| * Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| * |
| */ |
| |
| #include "incls/_precompiled.incl" |
| #include "incls/_classLoader.cpp.incl" |
| |
| |
| // Entry points in zip.dll for loading zip/jar file entries |
| |
| typedef void * * (JNICALL *ZipOpen_t)(const char *name, char **pmsg); |
| typedef void (JNICALL *ZipClose_t)(jzfile *zip); |
| typedef jzentry* (JNICALL *FindEntry_t)(jzfile *zip, const char *name, jint *sizeP, jint *nameLen); |
| typedef jboolean (JNICALL *ReadEntry_t)(jzfile *zip, jzentry *entry, unsigned char *buf, char *namebuf); |
| typedef jboolean (JNICALL *ReadMappedEntry_t)(jzfile *zip, jzentry *entry, unsigned char **buf, char *namebuf); |
| typedef jzentry* (JNICALL *GetNextEntry_t)(jzfile *zip, jint n); |
| |
| static ZipOpen_t ZipOpen = NULL; |
| static ZipClose_t ZipClose = NULL; |
| static FindEntry_t FindEntry = NULL; |
| static ReadEntry_t ReadEntry = NULL; |
| static ReadMappedEntry_t ReadMappedEntry = NULL; |
| static GetNextEntry_t GetNextEntry = NULL; |
| static canonicalize_fn_t CanonicalizeEntry = NULL; |
| |
| // Globals |
| |
| PerfCounter* ClassLoader::_perf_accumulated_time = NULL; |
| PerfCounter* ClassLoader::_perf_classes_inited = NULL; |
| PerfCounter* ClassLoader::_perf_class_init_time = NULL; |
| PerfCounter* ClassLoader::_perf_class_verify_time = NULL; |
| PerfCounter* ClassLoader::_perf_classes_linked = NULL; |
| PerfCounter* ClassLoader::_perf_class_link_time = NULL; |
| PerfCounter* ClassLoader::_sync_systemLoaderLockContentionRate = NULL; |
| PerfCounter* ClassLoader::_sync_nonSystemLoaderLockContentionRate = NULL; |
| PerfCounter* ClassLoader::_sync_JVMFindLoadedClassLockFreeCounter = NULL; |
| PerfCounter* ClassLoader::_sync_JVMDefineClassLockFreeCounter = NULL; |
| PerfCounter* ClassLoader::_sync_JNIDefineClassLockFreeCounter = NULL; |
| PerfCounter* ClassLoader::_unsafe_defineClassCallCounter = NULL; |
| PerfCounter* ClassLoader::_isUnsyncloadClass = NULL; |
| PerfCounter* ClassLoader::_load_instance_class_failCounter = NULL; |
| |
| ClassPathEntry* ClassLoader::_first_entry = NULL; |
| ClassPathEntry* ClassLoader::_last_entry = NULL; |
| PackageHashtable* ClassLoader::_package_hash_table = NULL; |
| |
| // helper routines |
| bool string_starts_with(const char* str, const char* str_to_find) { |
| size_t str_len = strlen(str); |
| size_t str_to_find_len = strlen(str_to_find); |
| if (str_to_find_len > str_len) { |
| return false; |
| } |
| return (strncmp(str, str_to_find, str_to_find_len) == 0); |
| } |
| |
| bool string_ends_with(const char* str, const char* str_to_find) { |
| size_t str_len = strlen(str); |
| size_t str_to_find_len = strlen(str_to_find); |
| if (str_to_find_len > str_len) { |
| return false; |
| } |
| return (strncmp(str + (str_len - str_to_find_len), str_to_find, str_to_find_len) == 0); |
| } |
| |
| |
| MetaIndex::MetaIndex(char** meta_package_names, int num_meta_package_names) { |
| if (num_meta_package_names == 0) { |
| _meta_package_names = NULL; |
| _num_meta_package_names = 0; |
| } else { |
| _meta_package_names = NEW_C_HEAP_ARRAY(char*, num_meta_package_names); |
| _num_meta_package_names = num_meta_package_names; |
| memcpy(_meta_package_names, meta_package_names, num_meta_package_names * sizeof(char*)); |
| } |
| } |
| |
| |
| MetaIndex::~MetaIndex() { |
| FREE_C_HEAP_ARRAY(char*, _meta_package_names); |
| } |
| |
| |
| bool MetaIndex::may_contain(const char* class_name) { |
| if ( _num_meta_package_names == 0) { |
| return false; |
| } |
| size_t class_name_len = strlen(class_name); |
| for (int i = 0; i < _num_meta_package_names; i++) { |
| char* pkg = _meta_package_names[i]; |
| size_t pkg_len = strlen(pkg); |
| size_t min_len = MIN2(class_name_len, pkg_len); |
| if (!strncmp(class_name, pkg, min_len)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| |
| ClassPathEntry::ClassPathEntry() { |
| set_next(NULL); |
| } |
| |
| |
| bool ClassPathEntry::is_lazy() { |
| return false; |
| } |
| |
| ClassPathDirEntry::ClassPathDirEntry(char* dir) : ClassPathEntry() { |
| _dir = NEW_C_HEAP_ARRAY(char, strlen(dir)+1); |
| strcpy(_dir, dir); |
| } |
| |
| |
| ClassFileStream* ClassPathDirEntry::open_stream(const char* name) { |
| // construct full path name |
| char path[JVM_MAXPATHLEN]; |
| if (jio_snprintf(path, sizeof(path), "%s%s%s", _dir, os::file_separator(), name) == -1) { |
| return NULL; |
| } |
| // check if file exists |
| struct stat st; |
| if (os::stat(path, &st) == 0) { |
| // found file, open it |
| int file_handle = hpi::open(path, 0, 0); |
| if (file_handle != -1) { |
| // read contents into resource array |
| u1* buffer = NEW_RESOURCE_ARRAY(u1, st.st_size); |
| size_t num_read = os::read(file_handle, (char*) buffer, st.st_size); |
| // close file |
| hpi::close(file_handle); |
| // construct ClassFileStream |
| if (num_read == (size_t)st.st_size) { |
| return new ClassFileStream(buffer, st.st_size, _dir); // Resource allocated |
| } |
| } |
| } |
| return NULL; |
| } |
| |
| |
| ClassPathZipEntry::ClassPathZipEntry(jzfile* zip, const char* zip_name) : ClassPathEntry() { |
| _zip = zip; |
| _zip_name = NEW_C_HEAP_ARRAY(char, strlen(zip_name)+1); |
| strcpy(_zip_name, zip_name); |
| } |
| |
| ClassPathZipEntry::~ClassPathZipEntry() { |
| if (ZipClose != NULL) { |
| (*ZipClose)(_zip); |
| } |
| FREE_C_HEAP_ARRAY(char, _zip_name); |
| } |
| |
| ClassFileStream* ClassPathZipEntry::open_stream(const char* name) { |
| // enable call to C land |
| JavaThread* thread = JavaThread::current(); |
| ThreadToNativeFromVM ttn(thread); |
| // check whether zip archive contains name |
| jint filesize, name_len; |
| jzentry* entry = (*FindEntry)(_zip, name, &filesize, &name_len); |
| if (entry == NULL) return NULL; |
| u1* buffer; |
| char name_buf[128]; |
| char* filename; |
| if (name_len < 128) { |
| filename = name_buf; |
| } else { |
| filename = NEW_RESOURCE_ARRAY(char, name_len + 1); |
| } |
| |
| // file found, get pointer to class in mmaped jar file. |
| if (ReadMappedEntry == NULL || |
| !(*ReadMappedEntry)(_zip, entry, &buffer, filename)) { |
| // mmaped access not available, perhaps due to compression, |
| // read contents into resource array |
| buffer = NEW_RESOURCE_ARRAY(u1, filesize); |
| if (!(*ReadEntry)(_zip, entry, buffer, filename)) return NULL; |
| } |
| // return result |
| return new ClassFileStream(buffer, filesize, _zip_name); // Resource allocated |
| } |
| |
| // invoke function for each entry in the zip file |
| void ClassPathZipEntry::contents_do(void f(const char* name, void* context), void* context) { |
| JavaThread* thread = JavaThread::current(); |
| HandleMark handle_mark(thread); |
| ThreadToNativeFromVM ttn(thread); |
| for (int n = 0; ; n++) { |
| jzentry * ze = ((*GetNextEntry)(_zip, n)); |
| if (ze == NULL) break; |
| (*f)(ze->name, context); |
| } |
| } |
| |
| LazyClassPathEntry::LazyClassPathEntry(char* path, struct stat st) : ClassPathEntry() { |
| _path = strdup(path); |
| _st = st; |
| _meta_index = NULL; |
| _resolved_entry = NULL; |
| } |
| |
| bool LazyClassPathEntry::is_jar_file() { |
| return ((_st.st_mode & S_IFREG) == S_IFREG); |
| } |
| |
| ClassPathEntry* LazyClassPathEntry::resolve_entry() { |
| if (_resolved_entry != NULL) { |
| return (ClassPathEntry*) _resolved_entry; |
| } |
| ClassPathEntry* new_entry = NULL; |
| ClassLoader::create_class_path_entry(_path, _st, &new_entry, false); |
| assert(new_entry != NULL, "earlier code should have caught this"); |
| { |
| ThreadCritical tc; |
| if (_resolved_entry == NULL) { |
| _resolved_entry = new_entry; |
| return new_entry; |
| } |
| } |
| assert(_resolved_entry != NULL, "bug in MT-safe resolution logic"); |
| delete new_entry; |
| return (ClassPathEntry*) _resolved_entry; |
| } |
| |
| ClassFileStream* LazyClassPathEntry::open_stream(const char* name) { |
| if (_meta_index != NULL && |
| !_meta_index->may_contain(name)) { |
| return NULL; |
| } |
| return resolve_entry()->open_stream(name); |
| } |
| |
| bool LazyClassPathEntry::is_lazy() { |
| return true; |
| } |
| |
| static void print_meta_index(LazyClassPathEntry* entry, |
| GrowableArray<char*>& meta_packages) { |
| tty->print("[Meta index for %s=", entry->name()); |
| for (int i = 0; i < meta_packages.length(); i++) { |
| if (i > 0) tty->print(" "); |
| tty->print(meta_packages.at(i)); |
| } |
| tty->print_cr("]"); |
| } |
| |
| |
| void ClassLoader::setup_meta_index() { |
| // Set up meta index which allows us to open boot jars lazily if |
| // class data sharing is enabled |
| const char* known_version = "% VERSION 2"; |
| char* meta_index_path = Arguments::get_meta_index_path(); |
| char* meta_index_dir = Arguments::get_meta_index_dir(); |
| FILE* file = fopen(meta_index_path, "r"); |
| int line_no = 0; |
| if (file != NULL) { |
| ResourceMark rm; |
| LazyClassPathEntry* cur_entry = NULL; |
| GrowableArray<char*> boot_class_path_packages(10); |
| char package_name[256]; |
| bool skipCurrentJar = false; |
| while (fgets(package_name, sizeof(package_name), file) != NULL) { |
| ++line_no; |
| // Remove trailing newline |
| package_name[strlen(package_name) - 1] = '\0'; |
| switch(package_name[0]) { |
| case '%': |
| { |
| if ((line_no == 1) && (strcmp(package_name, known_version) != 0)) { |
| if (TraceClassLoading && Verbose) { |
| tty->print("[Unsupported meta index version]"); |
| } |
| fclose(file); |
| return; |
| } |
| } |
| |
| // These directives indicate jar files which contain only |
| // classes, only non-classfile resources, or a combination of |
| // the two. See src/share/classes/sun/misc/MetaIndex.java and |
| // make/tools/MetaIndex/BuildMetaIndex.java in the J2SE |
| // workspace. |
| case '#': |
| case '!': |
| case '@': |
| { |
| // Hand off current packages to current lazy entry (if any) |
| if ((cur_entry != NULL) && |
| (boot_class_path_packages.length() > 0)) { |
| if (TraceClassLoading && Verbose) { |
| print_meta_index(cur_entry, boot_class_path_packages); |
| } |
| MetaIndex* index = new MetaIndex(boot_class_path_packages.adr_at(0), |
| boot_class_path_packages.length()); |
| cur_entry->set_meta_index(index); |
| } |
| cur_entry = NULL; |
| boot_class_path_packages.clear(); |
| |
| // Find lazy entry corresponding to this jar file |
| for (ClassPathEntry* entry = _first_entry; entry != NULL; entry = entry->next()) { |
| if (entry->is_lazy() && |
| string_starts_with(entry->name(), meta_index_dir) && |
| string_ends_with(entry->name(), &package_name[2])) { |
| cur_entry = (LazyClassPathEntry*) entry; |
| break; |
| } |
| } |
| |
| // If the first character is '@', it indicates the following jar |
| // file is a resource only jar file in which case, we should skip |
| // reading the subsequent entries since the resource loading is |
| // totally handled by J2SE side. |
| if (package_name[0] == '@') { |
| if (cur_entry != NULL) { |
| cur_entry->set_meta_index(new MetaIndex(NULL, 0)); |
| } |
| cur_entry = NULL; |
| skipCurrentJar = true; |
| } else { |
| skipCurrentJar = false; |
| } |
| |
| break; |
| } |
| |
| default: |
| { |
| if (!skipCurrentJar && cur_entry != NULL) { |
| char* new_name = strdup(package_name); |
| boot_class_path_packages.append(new_name); |
| } |
| } |
| } |
| } |
| // Hand off current packages to current lazy entry (if any) |
| if ((cur_entry != NULL) && |
| (boot_class_path_packages.length() > 0)) { |
| if (TraceClassLoading && Verbose) { |
| print_meta_index(cur_entry, boot_class_path_packages); |
| } |
| MetaIndex* index = new MetaIndex(boot_class_path_packages.adr_at(0), |
| boot_class_path_packages.length()); |
| cur_entry->set_meta_index(index); |
| } |
| fclose(file); |
| } |
| } |
| |
| void ClassLoader::setup_bootstrap_search_path() { |
| assert(_first_entry == NULL, "should not setup bootstrap class search path twice"); |
| char* sys_class_path = os::strdup(Arguments::get_sysclasspath()); |
| if (TraceClassLoading && Verbose) { |
| tty->print_cr("[Bootstrap loader class path=%s]", sys_class_path); |
| } |
| |
| int len = (int)strlen(sys_class_path); |
| int end = 0; |
| |
| // Iterate over class path entries |
| for (int start = 0; start < len; start = end) { |
| while (sys_class_path[end] && sys_class_path[end] != os::path_separator()[0]) { |
| end++; |
| } |
| char* path = NEW_C_HEAP_ARRAY(char, end-start+1); |
| strncpy(path, &sys_class_path[start], end-start); |
| path[end-start] = '\0'; |
| update_class_path_entry_list(path, false); |
| FREE_C_HEAP_ARRAY(char, path); |
| while (sys_class_path[end] == os::path_separator()[0]) { |
| end++; |
| } |
| } |
| } |
| |
| void ClassLoader::create_class_path_entry(char *path, struct stat st, ClassPathEntry **new_entry, bool lazy) { |
| JavaThread* thread = JavaThread::current(); |
| if (lazy) { |
| *new_entry = new LazyClassPathEntry(path, st); |
| return; |
| } |
| if ((st.st_mode & S_IFREG) == S_IFREG) { |
| // Regular file, should be a zip file |
| // Canonicalized filename |
| char canonical_path[JVM_MAXPATHLEN]; |
| if (!get_canonical_path(path, canonical_path, JVM_MAXPATHLEN)) { |
| // This matches the classic VM |
| EXCEPTION_MARK; |
| THROW_MSG(vmSymbols::java_io_IOException(), "Bad pathname"); |
| } |
| char* error_msg = NULL; |
| jzfile* zip; |
| { |
| // enable call to C land |
| ThreadToNativeFromVM ttn(thread); |
| HandleMark hm(thread); |
| zip = (*ZipOpen)(canonical_path, &error_msg); |
| } |
| if (zip != NULL && error_msg == NULL) { |
| *new_entry = new ClassPathZipEntry(zip, path); |
| if (TraceClassLoading) { |
| tty->print_cr("[Opened %s]", path); |
| } |
| } else { |
| ResourceMark rm(thread); |
| char *msg; |
| if (error_msg == NULL) { |
| msg = NEW_RESOURCE_ARRAY(char, strlen(path) + 128); ; |
| jio_snprintf(msg, strlen(path) + 127, "error in opening JAR file %s", path); |
| } else { |
| int len = (int)(strlen(path) + strlen(error_msg) + 128); |
| msg = NEW_RESOURCE_ARRAY(char, len); ; |
| jio_snprintf(msg, len - 1, "error in opening JAR file <%s> %s", error_msg, path); |
| } |
| EXCEPTION_MARK; |
| THROW_MSG(vmSymbols::java_lang_ClassNotFoundException(), msg); |
| } |
| } else { |
| // Directory |
| *new_entry = new ClassPathDirEntry(path); |
| if (TraceClassLoading) { |
| tty->print_cr("[Path %s]", path); |
| } |
| } |
| } |
| |
| |
| // Create a class path zip entry for a given path (return NULL if not found |
| // or zip/JAR file cannot be opened) |
| ClassPathZipEntry* ClassLoader::create_class_path_zip_entry(const char *path) { |
| // check for a regular file |
| struct stat st; |
| if (os::stat(path, &st) == 0) { |
| if ((st.st_mode & S_IFREG) == S_IFREG) { |
| char orig_path[JVM_MAXPATHLEN]; |
| char canonical_path[JVM_MAXPATHLEN]; |
| |
| strcpy(orig_path, path); |
| if (get_canonical_path(orig_path, canonical_path, JVM_MAXPATHLEN)) { |
| char* error_msg = NULL; |
| jzfile* zip; |
| { |
| // enable call to C land |
| JavaThread* thread = JavaThread::current(); |
| ThreadToNativeFromVM ttn(thread); |
| HandleMark hm(thread); |
| zip = (*ZipOpen)(canonical_path, &error_msg); |
| } |
| if (zip != NULL && error_msg == NULL) { |
| // create using canonical path |
| return new ClassPathZipEntry(zip, canonical_path); |
| } |
| } |
| } |
| } |
| return NULL; |
| } |
| |
| // returns true if entry already on class path |
| bool ClassLoader::contains_entry(ClassPathEntry *entry) { |
| ClassPathEntry* e = _first_entry; |
| while (e != NULL) { |
| // assume zip entries have been canonicalized |
| if (strcmp(entry->name(), e->name()) == 0) { |
| return true; |
| } |
| e = e->next(); |
| } |
| return false; |
| } |
| |
| void ClassLoader::add_to_list(ClassPathEntry *new_entry) { |
| if (new_entry != NULL) { |
| if (_last_entry == NULL) { |
| _first_entry = _last_entry = new_entry; |
| } else { |
| _last_entry->set_next(new_entry); |
| _last_entry = new_entry; |
| } |
| } |
| } |
| |
| void ClassLoader::update_class_path_entry_list(const char *path, |
| bool check_for_duplicates) { |
| struct stat st; |
| if (os::stat((char *)path, &st) == 0) { |
| // File or directory found |
| ClassPathEntry* new_entry = NULL; |
| create_class_path_entry((char *)path, st, &new_entry, LazyBootClassLoader); |
| // The kernel VM adds dynamically to the end of the classloader path and |
| // doesn't reorder the bootclasspath which would break java.lang.Package |
| // (see PackageInfo). |
| // Add new entry to linked list |
| if (!check_for_duplicates || !contains_entry(new_entry)) { |
| add_to_list(new_entry); |
| } |
| } |
| } |
| |
| void ClassLoader::print_bootclasspath() { |
| ClassPathEntry* e = _first_entry; |
| tty->print("[bootclasspath= "); |
| while (e != NULL) { |
| tty->print("%s ;", e->name()); |
| e = e->next(); |
| } |
| tty->print_cr("]"); |
| } |
| |
| void ClassLoader::load_zip_library() { |
| assert(ZipOpen == NULL, "should not load zip library twice"); |
| // First make sure native library is loaded |
| os::native_java_library(); |
| // Load zip library |
| char path[JVM_MAXPATHLEN]; |
| char ebuf[1024]; |
| hpi::dll_build_name(path, sizeof(path), Arguments::get_dll_dir(), "zip"); |
| void* handle = hpi::dll_load(path, ebuf, sizeof ebuf); |
| if (handle == NULL) { |
| vm_exit_during_initialization("Unable to load ZIP library", path); |
| } |
| // Lookup zip entry points |
| ZipOpen = CAST_TO_FN_PTR(ZipOpen_t, hpi::dll_lookup(handle, "ZIP_Open")); |
| ZipClose = CAST_TO_FN_PTR(ZipClose_t, hpi::dll_lookup(handle, "ZIP_Close")); |
| FindEntry = CAST_TO_FN_PTR(FindEntry_t, hpi::dll_lookup(handle, "ZIP_FindEntry")); |
| ReadEntry = CAST_TO_FN_PTR(ReadEntry_t, hpi::dll_lookup(handle, "ZIP_ReadEntry")); |
| ReadMappedEntry = CAST_TO_FN_PTR(ReadMappedEntry_t, hpi::dll_lookup(handle, "ZIP_ReadMappedEntry")); |
| GetNextEntry = CAST_TO_FN_PTR(GetNextEntry_t, hpi::dll_lookup(handle, "ZIP_GetNextEntry")); |
| |
| // ZIP_Close is not exported on Windows in JDK5.0 so don't abort if ZIP_Close is NULL |
| if (ZipOpen == NULL || FindEntry == NULL || ReadEntry == NULL || GetNextEntry == NULL) { |
| vm_exit_during_initialization("Corrupted ZIP library", path); |
| } |
| |
| // Lookup canonicalize entry in libjava.dll |
| void *javalib_handle = os::native_java_library(); |
| CanonicalizeEntry = CAST_TO_FN_PTR(canonicalize_fn_t, hpi::dll_lookup(javalib_handle, "Canonicalize")); |
| // This lookup only works on 1.3. Do not check for non-null here |
| } |
| |
| // PackageInfo data exists in order to support the java.lang.Package |
| // class. A Package object provides information about a java package |
| // (version, vendor, etc.) which originates in the manifest of the jar |
| // file supplying the package. For application classes, the ClassLoader |
| // object takes care of this. |
| |
| // For system (boot) classes, the Java code in the Package class needs |
| // to be able to identify which source jar file contained the boot |
| // class, so that it can extract the manifest from it. This table |
| // identifies java packages with jar files in the boot classpath. |
| |
| // Because the boot classpath cannot change, the classpath index is |
| // sufficient to identify the source jar file or directory. (Since |
| // directories have no manifests, the directory name is not required, |
| // but is available.) |
| |
| // When using sharing -- the pathnames of entries in the boot classpath |
| // may not be the same at runtime as they were when the archive was |
| // created (NFS, Samba, etc.). The actual files and directories named |
| // in the classpath must be the same files, in the same order, even |
| // though the exact name is not the same. |
| |
| class PackageInfo: public BasicHashtableEntry { |
| public: |
| const char* _pkgname; // Package name |
| int _classpath_index; // Index of directory or JAR file loaded from |
| |
| PackageInfo* next() { |
| return (PackageInfo*)BasicHashtableEntry::next(); |
| } |
| |
| const char* pkgname() { return _pkgname; } |
| void set_pkgname(char* pkgname) { _pkgname = pkgname; } |
| |
| const char* filename() { |
| return ClassLoader::classpath_entry(_classpath_index)->name(); |
| } |
| |
| void set_index(int index) { |
| _classpath_index = index; |
| } |
| }; |
| |
| |
| class PackageHashtable : public BasicHashtable { |
| private: |
| inline unsigned int compute_hash(const char *s, int n) { |
| unsigned int val = 0; |
| while (--n >= 0) { |
| val = *s++ + 31 * val; |
| } |
| return val; |
| } |
| |
| PackageInfo* bucket(int index) { |
| return (PackageInfo*)BasicHashtable::bucket(index); |
| } |
| |
| PackageInfo* get_entry(int index, unsigned int hash, |
| const char* pkgname, size_t n) { |
| for (PackageInfo* pp = bucket(index); pp != NULL; pp = pp->next()) { |
| if (pp->hash() == hash && |
| strncmp(pkgname, pp->pkgname(), n) == 0 && |
| pp->pkgname()[n] == '\0') { |
| return pp; |
| } |
| } |
| return NULL; |
| } |
| |
| public: |
| PackageHashtable(int table_size) |
| : BasicHashtable(table_size, sizeof(PackageInfo)) {} |
| |
| PackageHashtable(int table_size, HashtableBucket* t, int number_of_entries) |
| : BasicHashtable(table_size, sizeof(PackageInfo), t, number_of_entries) {} |
| |
| PackageInfo* get_entry(const char* pkgname, int n) { |
| unsigned int hash = compute_hash(pkgname, n); |
| return get_entry(hash_to_index(hash), hash, pkgname, n); |
| } |
| |
| PackageInfo* new_entry(char* pkgname, int n) { |
| unsigned int hash = compute_hash(pkgname, n); |
| PackageInfo* pp; |
| pp = (PackageInfo*)BasicHashtable::new_entry(hash); |
| pp->set_pkgname(pkgname); |
| return pp; |
| } |
| |
| void add_entry(PackageInfo* pp) { |
| int index = hash_to_index(pp->hash()); |
| BasicHashtable::add_entry(index, pp); |
| } |
| |
| void copy_pkgnames(const char** packages) { |
| int n = 0; |
| for (int i = 0; i < table_size(); ++i) { |
| for (PackageInfo* pp = bucket(i); pp != NULL; pp = pp->next()) { |
| packages[n++] = pp->pkgname(); |
| } |
| } |
| assert(n == number_of_entries(), "just checking"); |
| } |
| |
| void copy_table(char** top, char* end, PackageHashtable* table); |
| }; |
| |
| |
| void PackageHashtable::copy_table(char** top, char* end, |
| PackageHashtable* table) { |
| // Copy (relocate) the table to the shared space. |
| BasicHashtable::copy_table(top, end); |
| |
| // Calculate the space needed for the package name strings. |
| int i; |
| int n = 0; |
| for (i = 0; i < table_size(); ++i) { |
| for (PackageInfo* pp = table->bucket(i); |
| pp != NULL; |
| pp = pp->next()) { |
| n += (int)(strlen(pp->pkgname()) + 1); |
| } |
| } |
| if (*top + n + sizeof(intptr_t) >= end) { |
| warning("\nThe shared miscellaneous data space is not large " |
| "enough to \npreload requested classes. Use " |
| "-XX:SharedMiscDataSize= to increase \nthe initial " |
| "size of the miscellaneous data space.\n"); |
| exit(2); |
| } |
| |
| // Copy the table data (the strings) to the shared space. |
| n = align_size_up(n, sizeof(HeapWord)); |
| *(intptr_t*)(*top) = n; |
| *top += sizeof(intptr_t); |
| |
| for (i = 0; i < table_size(); ++i) { |
| for (PackageInfo* pp = table->bucket(i); |
| pp != NULL; |
| pp = pp->next()) { |
| int n1 = (int)(strlen(pp->pkgname()) + 1); |
| pp->set_pkgname((char*)memcpy(*top, pp->pkgname(), n1)); |
| *top += n1; |
| } |
| } |
| *top = (char*)align_size_up((intptr_t)*top, sizeof(HeapWord)); |
| } |
| |
| |
| void ClassLoader::copy_package_info_buckets(char** top, char* end) { |
| _package_hash_table->copy_buckets(top, end); |
| } |
| |
| void ClassLoader::copy_package_info_table(char** top, char* end) { |
| _package_hash_table->copy_table(top, end, _package_hash_table); |
| } |
| |
| |
| PackageInfo* ClassLoader::lookup_package(const char *pkgname) { |
| const char *cp = strrchr(pkgname, '/'); |
| if (cp != NULL) { |
| // Package prefix found |
| int n = cp - pkgname + 1; |
| return _package_hash_table->get_entry(pkgname, n); |
| } |
| return NULL; |
| } |
| |
| |
| bool ClassLoader::add_package(const char *pkgname, int classpath_index, TRAPS) { |
| assert(pkgname != NULL, "just checking"); |
| // Bootstrap loader no longer holds system loader lock obj serializing |
| // load_instance_class and thereby add_package |
| { |
| MutexLocker ml(PackageTable_lock, THREAD); |
| // First check for previously loaded entry |
| PackageInfo* pp = lookup_package(pkgname); |
| if (pp != NULL) { |
| // Existing entry found, check source of package |
| pp->set_index(classpath_index); |
| return true; |
| } |
| |
| const char *cp = strrchr(pkgname, '/'); |
| if (cp != NULL) { |
| // Package prefix found |
| int n = cp - pkgname + 1; |
| |
| char* new_pkgname = NEW_C_HEAP_ARRAY(char, n + 1); |
| if (new_pkgname == NULL) { |
| return false; |
| } |
| |
| memcpy(new_pkgname, pkgname, n); |
| new_pkgname[n] = '\0'; |
| pp = _package_hash_table->new_entry(new_pkgname, n); |
| pp->set_index(classpath_index); |
| |
| // Insert into hash table |
| _package_hash_table->add_entry(pp); |
| } |
| return true; |
| } |
| } |
| |
| |
| oop ClassLoader::get_system_package(const char* name, TRAPS) { |
| PackageInfo* pp; |
| { |
| MutexLocker ml(PackageTable_lock, THREAD); |
| pp = lookup_package(name); |
| } |
| if (pp == NULL) { |
| return NULL; |
| } else { |
| Handle p = java_lang_String::create_from_str(pp->filename(), THREAD); |
| return p(); |
| } |
| } |
| |
| |
| objArrayOop ClassLoader::get_system_packages(TRAPS) { |
| ResourceMark rm(THREAD); |
| int nof_entries; |
| const char** packages; |
| { |
| MutexLocker ml(PackageTable_lock, THREAD); |
| // Allocate resource char* array containing package names |
| nof_entries = _package_hash_table->number_of_entries(); |
| if ((packages = NEW_RESOURCE_ARRAY(const char*, nof_entries)) == NULL) { |
| return NULL; |
| } |
| _package_hash_table->copy_pkgnames(packages); |
| } |
| // Allocate objArray and fill with java.lang.String |
| objArrayOop r = oopFactory::new_objArray(SystemDictionary::string_klass(), |
| nof_entries, CHECK_0); |
| objArrayHandle result(THREAD, r); |
| for (int i = 0; i < nof_entries; i++) { |
| Handle str = java_lang_String::create_from_str(packages[i], CHECK_0); |
| result->obj_at_put(i, str()); |
| } |
| |
| return result(); |
| } |
| |
| |
| instanceKlassHandle ClassLoader::load_classfile(symbolHandle h_name, TRAPS) { |
| VTuneClassLoadMarker clm; |
| ResourceMark rm(THREAD); |
| EventMark m("loading class " INTPTR_FORMAT, (address)h_name()); |
| ThreadProfilerMark tpm(ThreadProfilerMark::classLoaderRegion); |
| |
| stringStream st; |
| // st.print() uses too much stack space while handling a StackOverflowError |
| // st.print("%s.class", h_name->as_utf8()); |
| st.print_raw(h_name->as_utf8()); |
| st.print_raw(".class"); |
| char* name = st.as_string(); |
| |
| // Lookup stream for parsing .class file |
| ClassFileStream* stream = NULL; |
| int classpath_index = 0; |
| { |
| PerfTraceTime vmtimer(perf_accumulated_time()); |
| ClassPathEntry* e = _first_entry; |
| while (e != NULL) { |
| stream = e->open_stream(name); |
| if (stream != NULL) { |
| break; |
| } |
| e = e->next(); |
| ++classpath_index; |
| } |
| } |
| |
| instanceKlassHandle h(THREAD, klassOop(NULL)); |
| if (stream != NULL) { |
| |
| // class file found, parse it |
| ClassFileParser parser(stream); |
| Handle class_loader; |
| Handle protection_domain; |
| symbolHandle parsed_name; |
| instanceKlassHandle result = parser.parseClassFile(h_name, |
| class_loader, |
| protection_domain, |
| parsed_name, |
| CHECK_(h)); |
| |
| // add to package table |
| if (add_package(name, classpath_index, THREAD)) { |
| h = result; |
| } |
| } |
| |
| return h; |
| } |
| |
| |
| void ClassLoader::create_package_info_table(HashtableBucket *t, int length, |
| int number_of_entries) { |
| assert(_package_hash_table == NULL, "One package info table allowed."); |
| assert(length == package_hash_table_size * sizeof(HashtableBucket), |
| "bad shared package info size."); |
| _package_hash_table = new PackageHashtable(package_hash_table_size, t, |
| number_of_entries); |
| } |
| |
| |
| void ClassLoader::create_package_info_table() { |
| assert(_package_hash_table == NULL, "shouldn't have one yet"); |
| _package_hash_table = new PackageHashtable(package_hash_table_size); |
| } |
| |
| |
| // Initialize the class loader's access to methods in libzip. Parse and |
| // process the boot classpath into a list ClassPathEntry objects. Once |
| // this list has been created, it must not change order (see class PackageInfo) |
| // it can be appended to and is by jvmti and the kernel vm. |
| |
| void ClassLoader::initialize() { |
| assert(_package_hash_table == NULL, "should have been initialized by now."); |
| EXCEPTION_MARK; |
| |
| if (UsePerfData) { |
| // jvmstat performance counters |
| NEWPERFTICKCOUNTER(_perf_accumulated_time, SUN_CLS, "time"); |
| NEWPERFTICKCOUNTER(_perf_class_init_time, SUN_CLS, "classInitTime"); |
| NEWPERFTICKCOUNTER(_perf_class_verify_time, SUN_CLS, "classVerifyTime"); |
| NEWPERFTICKCOUNTER(_perf_class_link_time, SUN_CLS, "classLinkedTime"); |
| |
| NEWPERFEVENTCOUNTER(_perf_classes_inited, SUN_CLS, "initializedClasses"); |
| NEWPERFEVENTCOUNTER(_perf_classes_linked, SUN_CLS, "linkedClasses"); |
| |
| // The following performance counters are added for measuring the impact |
| // of the bug fix of 6365597. They are mainly focused on finding out |
| // the behavior of system & user-defined classloader lock, whether |
| // ClassLoader.loadClass/findClass is being called synchronized or not. |
| // Also two additional counters are created to see whether 'UnsyncloadClass' |
| // flag is being set or not and how many times load_instance_class call |
| // fails with linkageError etc. |
| NEWPERFEVENTCOUNTER(_sync_systemLoaderLockContentionRate, SUN_CLS, |
| "systemLoaderLockContentionRate"); |
| NEWPERFEVENTCOUNTER(_sync_nonSystemLoaderLockContentionRate, SUN_CLS, |
| "nonSystemLoaderLockContentionRate"); |
| NEWPERFEVENTCOUNTER(_sync_JVMFindLoadedClassLockFreeCounter, SUN_CLS, |
| "jvmFindLoadedClassNoLockCalls"); |
| NEWPERFEVENTCOUNTER(_sync_JVMDefineClassLockFreeCounter, SUN_CLS, |
| "jvmDefineClassNoLockCalls"); |
| |
| NEWPERFEVENTCOUNTER(_sync_JNIDefineClassLockFreeCounter, SUN_CLS, |
| "jniDefineClassNoLockCalls"); |
| |
| NEWPERFEVENTCOUNTER(_unsafe_defineClassCallCounter, SUN_CLS, |
| "unsafeDefineClassCalls"); |
| |
| NEWPERFEVENTCOUNTER(_isUnsyncloadClass, SUN_CLS, "isUnsyncloadClassSet"); |
| NEWPERFEVENTCOUNTER(_load_instance_class_failCounter, SUN_CLS, |
| "loadInstanceClassFailRate"); |
| |
| // increment the isUnsyncloadClass counter if UnsyncloadClass is set. |
| if (UnsyncloadClass) { |
| _isUnsyncloadClass->inc(); |
| } |
| } |
| |
| // lookup zip library entry points |
| load_zip_library(); |
| // initialize search path |
| setup_bootstrap_search_path(); |
| if (LazyBootClassLoader) { |
| // set up meta index which makes boot classpath initialization lazier |
| setup_meta_index(); |
| } |
| } |
| |
| |
| jlong ClassLoader::classloader_time_ms() { |
| return UsePerfData ? |
| Management::ticks_to_ms(_perf_accumulated_time->get_value()) : -1; |
| } |
| |
| jlong ClassLoader::class_init_count() { |
| return UsePerfData ? _perf_classes_inited->get_value() : -1; |
| } |
| |
| jlong ClassLoader::class_init_time_ms() { |
| return UsePerfData ? |
| Management::ticks_to_ms(_perf_class_init_time->get_value()) : -1; |
| } |
| |
| jlong ClassLoader::class_verify_time_ms() { |
| return UsePerfData ? |
| Management::ticks_to_ms(_perf_class_verify_time->get_value()) : -1; |
| } |
| |
| jlong ClassLoader::class_link_count() { |
| return UsePerfData ? _perf_classes_linked->get_value() : -1; |
| } |
| |
| jlong ClassLoader::class_link_time_ms() { |
| return UsePerfData ? |
| Management::ticks_to_ms(_perf_class_link_time->get_value()) : -1; |
| } |
| |
| int ClassLoader::compute_Object_vtable() { |
| // hardwired for JDK1.2 -- would need to duplicate class file parsing |
| // code to determine actual value from file |
| // Would be value '11' if finals were in vtable |
| int JDK_1_2_Object_vtable_size = 5; |
| return JDK_1_2_Object_vtable_size * vtableEntry::size(); |
| } |
| |
| |
| void classLoader_init() { |
| ClassLoader::initialize(); |
| } |
| |
| |
| bool ClassLoader::get_canonical_path(char* orig, char* out, int len) { |
| assert(orig != NULL && out != NULL && len > 0, "bad arguments"); |
| if (CanonicalizeEntry != NULL) { |
| JNIEnv* env = JavaThread::current()->jni_environment(); |
| if ((CanonicalizeEntry)(env, hpi::native_path(orig), out, len) < 0) { |
| return false; |
| } |
| } else { |
| // On JDK 1.2.2 the Canonicalize does not exist, so just do nothing |
| strncpy(out, orig, len); |
| out[len - 1] = '\0'; |
| } |
| return true; |
| } |
| |
| #ifndef PRODUCT |
| |
| void ClassLoader::verify() { |
| _package_hash_table->verify(); |
| } |
| |
| |
| // CompileTheWorld |
| // |
| // Iterates over all class path entries and forces compilation of all methods |
| // in all classes found. Currently, only zip/jar archives are searched. |
| // |
| // The classes are loaded by the Java level bootstrap class loader, and the |
| // initializer is called. If DelayCompilationDuringStartup is true (default), |
| // the interpreter will run the initialization code. Note that forcing |
| // initialization in this way could potentially lead to initialization order |
| // problems, in which case we could just force the initialization bit to be set. |
| |
| |
| // We need to iterate over the contents of a zip/jar file, so we replicate the |
| // jzcell and jzfile definitions from zip_util.h but rename jzfile to real_jzfile, |
| // since jzfile already has a void* definition. |
| // |
| // Note that this is only used in debug mode. |
| // |
| // HotSpot integration note: |
| // Matches zip_util.h 1.14 99/06/01 from jdk1.3 beta H build |
| |
| |
| // JDK 1.3 version |
| typedef struct real_jzentry13 { /* Zip file entry */ |
| char *name; /* entry name */ |
| jint time; /* modification time */ |
| jint size; /* size of uncompressed data */ |
| jint csize; /* size of compressed data (zero if uncompressed) */ |
| jint crc; /* crc of uncompressed data */ |
| char *comment; /* optional zip file comment */ |
| jbyte *extra; /* optional extra data */ |
| jint pos; /* position of LOC header (if negative) or data */ |
| } real_jzentry13; |
| |
| typedef struct real_jzfile13 { /* Zip file */ |
| char *name; /* zip file name */ |
| jint refs; /* number of active references */ |
| jint fd; /* open file descriptor */ |
| void *lock; /* read lock */ |
| char *comment; /* zip file comment */ |
| char *msg; /* zip error message */ |
| void *entries; /* array of hash cells */ |
| jint total; /* total number of entries */ |
| unsigned short *table; /* Hash chain heads: indexes into entries */ |
| jint tablelen; /* number of hash eads */ |
| real_jzfile13 *next; /* next zip file in search list */ |
| jzentry *cache; /* we cache the most recently freed jzentry */ |
| /* Information on metadata names in META-INF directory */ |
| char **metanames; /* array of meta names (may have null names) */ |
| jint metacount; /* number of slots in metanames array */ |
| /* If there are any per-entry comments, they are in the comments array */ |
| char **comments; |
| } real_jzfile13; |
| |
| // JDK 1.2 version |
| typedef struct real_jzentry12 { /* Zip file entry */ |
| char *name; /* entry name */ |
| jint time; /* modification time */ |
| jint size; /* size of uncompressed data */ |
| jint csize; /* size of compressed data (zero if uncompressed) */ |
| jint crc; /* crc of uncompressed data */ |
| char *comment; /* optional zip file comment */ |
| jbyte *extra; /* optional extra data */ |
| jint pos; /* position of LOC header (if negative) or data */ |
| struct real_jzentry12 *next; /* next entry in hash table */ |
| } real_jzentry12; |
| |
| typedef struct real_jzfile12 { /* Zip file */ |
| char *name; /* zip file name */ |
| jint refs; /* number of active references */ |
| jint fd; /* open file descriptor */ |
| void *lock; /* read lock */ |
| char *comment; /* zip file comment */ |
| char *msg; /* zip error message */ |
| real_jzentry12 *entries; /* array of zip entries */ |
| jint total; /* total number of entries */ |
| real_jzentry12 **table; /* hash table of entries */ |
| jint tablelen; /* number of buckets */ |
| jzfile *next; /* next zip file in search list */ |
| } real_jzfile12; |
| |
| |
| void ClassPathDirEntry::compile_the_world(Handle loader, TRAPS) { |
| // For now we only compile all methods in all classes in zip/jar files |
| tty->print_cr("CompileTheWorld : Skipped classes in %s", _dir); |
| tty->cr(); |
| } |
| |
| |
| bool ClassPathDirEntry::is_rt_jar() { |
| return false; |
| } |
| |
| void ClassPathZipEntry::compile_the_world(Handle loader, TRAPS) { |
| if (JDK_Version::is_jdk12x_version()) { |
| compile_the_world12(loader, THREAD); |
| } else { |
| compile_the_world13(loader, THREAD); |
| } |
| if (HAS_PENDING_EXCEPTION) { |
| if (PENDING_EXCEPTION->is_a(SystemDictionary::OutOfMemoryError_klass())) { |
| CLEAR_PENDING_EXCEPTION; |
| tty->print_cr("\nCompileTheWorld : Ran out of memory\n"); |
| size_t used = Universe::heap()->permanent_used(); |
| size_t capacity = Universe::heap()->permanent_capacity(); |
| tty->print_cr("Permanent generation used %dK of %dK", used/K, capacity/K); |
| tty->print_cr("Increase size by setting e.g. -XX:MaxPermSize=%dK\n", capacity*2/K); |
| } else { |
| tty->print_cr("\nCompileTheWorld : Unexpected exception occurred\n"); |
| } |
| } |
| } |
| |
| // Version that works for JDK 1.3.x |
| void ClassPathZipEntry::compile_the_world13(Handle loader, TRAPS) { |
| real_jzfile13* zip = (real_jzfile13*) _zip; |
| tty->print_cr("CompileTheWorld : Compiling all classes in %s", zip->name); |
| tty->cr(); |
| // Iterate over all entries in zip file |
| for (int n = 0; ; n++) { |
| real_jzentry13 * ze = (real_jzentry13 *)((*GetNextEntry)(_zip, n)); |
| if (ze == NULL) break; |
| ClassLoader::compile_the_world_in(ze->name, loader, CHECK); |
| } |
| } |
| |
| |
| // Version that works for JDK 1.2.x |
| void ClassPathZipEntry::compile_the_world12(Handle loader, TRAPS) { |
| real_jzfile12* zip = (real_jzfile12*) _zip; |
| tty->print_cr("CompileTheWorld : Compiling all classes in %s", zip->name); |
| tty->cr(); |
| // Iterate over all entries in zip file |
| for (int n = 0; ; n++) { |
| real_jzentry12 * ze = (real_jzentry12 *)((*GetNextEntry)(_zip, n)); |
| if (ze == NULL) break; |
| ClassLoader::compile_the_world_in(ze->name, loader, CHECK); |
| } |
| } |
| |
| bool ClassPathZipEntry::is_rt_jar() { |
| if (JDK_Version::is_jdk12x_version()) { |
| return is_rt_jar12(); |
| } else { |
| return is_rt_jar13(); |
| } |
| } |
| |
| // JDK 1.3 version |
| bool ClassPathZipEntry::is_rt_jar13() { |
| real_jzfile13* zip = (real_jzfile13*) _zip; |
| int len = (int)strlen(zip->name); |
| // Check whether zip name ends in "rt.jar" |
| // This will match other archives named rt.jar as well, but this is |
| // only used for debugging. |
| return (len >= 6) && (strcasecmp(zip->name + len - 6, "rt.jar") == 0); |
| } |
| |
| // JDK 1.2 version |
| bool ClassPathZipEntry::is_rt_jar12() { |
| real_jzfile12* zip = (real_jzfile12*) _zip; |
| int len = (int)strlen(zip->name); |
| // Check whether zip name ends in "rt.jar" |
| // This will match other archives named rt.jar as well, but this is |
| // only used for debugging. |
| return (len >= 6) && (strcasecmp(zip->name + len - 6, "rt.jar") == 0); |
| } |
| |
| void LazyClassPathEntry::compile_the_world(Handle loader, TRAPS) { |
| resolve_entry()->compile_the_world(loader, CHECK); |
| } |
| |
| bool LazyClassPathEntry::is_rt_jar() { |
| return resolve_entry()->is_rt_jar(); |
| } |
| |
| void ClassLoader::compile_the_world() { |
| EXCEPTION_MARK; |
| HandleMark hm(THREAD); |
| ResourceMark rm(THREAD); |
| // Make sure we don't run with background compilation |
| BackgroundCompilation = false; |
| // Find bootstrap loader |
| Handle system_class_loader (THREAD, SystemDictionary::java_system_loader()); |
| // Iterate over all bootstrap class path entries |
| ClassPathEntry* e = _first_entry; |
| while (e != NULL) { |
| // We stop at rt.jar, unless it is the first bootstrap path entry |
| if (e->is_rt_jar() && e != _first_entry) break; |
| e->compile_the_world(system_class_loader, CATCH); |
| e = e->next(); |
| } |
| tty->print_cr("CompileTheWorld : Done"); |
| { |
| // Print statistics as if before normal exit: |
| extern void print_statistics(); |
| print_statistics(); |
| } |
| vm_exit(0); |
| } |
| |
| int ClassLoader::_compile_the_world_counter = 0; |
| |
| void ClassLoader::compile_the_world_in(char* name, Handle loader, TRAPS) { |
| int len = (int)strlen(name); |
| if (len > 6 && strcmp(".class", name + len - 6) == 0) { |
| // We have a .class file |
| char buffer[2048]; |
| strncpy(buffer, name, len - 6); |
| buffer[len-6] = 0; |
| // If the file has a period after removing .class, it's not really a |
| // valid class file. The class loader will check everything else. |
| if (strchr(buffer, '.') == NULL) { |
| _compile_the_world_counter++; |
| if (_compile_the_world_counter >= CompileTheWorldStartAt && _compile_the_world_counter <= CompileTheWorldStopAt) { |
| // Construct name without extension |
| symbolHandle sym = oopFactory::new_symbol_handle(buffer, CHECK); |
| // Use loader to load and initialize class |
| klassOop ik = SystemDictionary::resolve_or_null(sym, loader, Handle(), THREAD); |
| instanceKlassHandle k (THREAD, ik); |
| if (k.not_null() && !HAS_PENDING_EXCEPTION) { |
| k->initialize(THREAD); |
| } |
| bool exception_occurred = HAS_PENDING_EXCEPTION; |
| CLEAR_PENDING_EXCEPTION; |
| if (k.is_null() || (exception_occurred && !CompileTheWorldIgnoreInitErrors)) { |
| // If something went wrong (e.g. ExceptionInInitializerError) we skip this class |
| tty->print_cr("CompileTheWorld (%d) : Skipping %s", _compile_the_world_counter, buffer); |
| } else { |
| tty->print_cr("CompileTheWorld (%d) : %s", _compile_the_world_counter, buffer); |
| // Preload all classes to get around uncommon traps |
| if (CompileTheWorldPreloadClasses) { |
| constantPoolKlass::preload_and_initialize_all_classes(k->constants(), THREAD); |
| if (HAS_PENDING_EXCEPTION) { |
| // If something went wrong in preloading we just ignore it |
| CLEAR_PENDING_EXCEPTION; |
| tty->print_cr("Preloading failed for (%d) %s", _compile_the_world_counter, buffer); |
| } |
| } |
| // Iterate over all methods in class |
| for (int n = 0; n < k->methods()->length(); n++) { |
| methodHandle m (THREAD, methodOop(k->methods()->obj_at(n))); |
| if (CompilationPolicy::canBeCompiled(m)) { |
| // Force compilation |
| CompileBroker::compile_method(m, InvocationEntryBci, |
| methodHandle(), 0, "CTW", THREAD); |
| if (HAS_PENDING_EXCEPTION) { |
| CLEAR_PENDING_EXCEPTION; |
| tty->print_cr("CompileTheWorld (%d) : Skipping method: %s", _compile_the_world_counter, m->name()->as_C_string()); |
| } |
| if (TieredCompilation) { |
| // Clobber the first compile and force second tier compilation |
| m->clear_code(); |
| CompileBroker::compile_method(m, InvocationEntryBci, |
| methodHandle(), 0, "CTW", THREAD); |
| if (HAS_PENDING_EXCEPTION) { |
| CLEAR_PENDING_EXCEPTION; |
| tty->print_cr("CompileTheWorld (%d) : Skipping method: %s", _compile_the_world_counter, m->name()->as_C_string()); |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| #endif //PRODUCT |
