Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
- $Id: loader.c 8086 2007-06-14 15:31:54Z twisti $
-
*/
#include "mm/memory.h"
+#include "native/llni.h"
+
#include "threads/lock-common.h"
#include "toolbox/logging.h"
#include "vm/builtin.h"
#include "vm/exceptions.h"
#include "vm/global.h"
+#include "vm/primitive.h"
#include "vm/stringlocal.h"
#include "vm/vm.h"
#endif
#include "vmcore/classcache.h"
+#include "vmcore/field.h"
#include "vmcore/linker.h"
#include "vmcore/loader.h"
+#include "vmcore/method.h"
#include "vmcore/options.h"
-#include "vmcore/primitive.h"
#include "vmcore/rt-timing.h"
#if defined(ENABLE_STATISTICS)
if (!(class_java_util_Vector = load_class_bootstrap(utf_java_util_Vector)))
return false;
+# if defined(WITH_CLASSPATH_SUN)
+ if (!(class_sun_reflect_MagicAccessorImpl =
+ load_class_bootstrap(utf_new_char("sun/reflect/MagicAccessorImpl"))))
+ return false;
+# endif
+
if (!(arrayclass_java_lang_Object =
load_class_bootstrap(utf_new_char("[Ljava/lang/Object;"))))
return false;
+
+#if defined(ENABLE_ANNOTATIONS)
+ /* needed by annotation support */
+ if (!(class_sun_reflect_ConstantPool =
+ load_class_bootstrap(utf_sun_reflect_ConstantPool)))
+ return false;
+
+#if defined(WITH_CLASSPATH_GNU)
+ /* needed by GNU Classpaths annotation support */
+ if (!(class_sun_reflect_annotation_AnnotationParser =
+ load_class_bootstrap(utf_sun_reflect_annotation_AnnotationParser)))
+ return false;
#endif
+#endif
+#endif
+
return true;
}
cptags[forward_classes->thisindex] = CONSTANT_Class;
- if (opt_eager) {
- classinfo *tc;
-
- if (!(tc = load_class_bootstrap(name)))
- return false;
-
- /* link the class later, because we cannot link the class currently
- loading */
- list_add_first(&unlinkedclasses, tc);
- }
-
/* the classref is created later */
cpinfos[forward_classes->thisindex] = name;
#endif /* defined(ENABLE_JAVASE) */
-/* load_field ******************************************************************
-
- Load everything about a class field from the class file and fill a
- 'fieldinfo' structure. For static fields, space in the data segment
- is allocated.
-
-*******************************************************************************/
-
-#define field_load_NOVALUE 0xffffffff /* must be bigger than any u2 value! */
-
-static bool load_field(classbuffer *cb, fieldinfo *f, descriptor_pool *descpool)
-{
- classinfo *c;
- u4 attrnum, i;
- u4 jtype;
- u4 pindex = field_load_NOVALUE; /* constantvalue_index */
- utf *u;
-
- c = cb->class;
-
- if (!suck_check_classbuffer_size(cb, 2 + 2 + 2))
- return false;
-
- f->flags = suck_u2(cb);
-
- if (!(u = class_getconstant(c, suck_u2(cb), CONSTANT_Utf8)))
- return false;
-
- f->name = u;
-
- if (!(u = class_getconstant(c, suck_u2(cb), CONSTANT_Utf8)))
- return false;
-
- f->descriptor = u;
- f->parseddesc = NULL;
-
- if (!descriptor_pool_add(descpool, u, NULL))
- return false;
-
- /* descriptor_pool_add accepts method descriptors, so we have to check */
- /* against them here before the call of descriptor_to_basic_type below. */
- if (u->text[0] == '(') {
- exceptions_throw_classformaterror(c, "Method descriptor used for field");
- return false;
- }
-
-#ifdef ENABLE_VERIFIER
- if (opt_verify) {
- /* check name */
- if (!is_valid_name_utf(f->name) || f->name->text[0] == '<') {
- exceptions_throw_classformaterror(c,
- "Illegal Field name \"%s\"",
- f->name->text);
- return false;
- }
-
- /* check flag consistency */
- i = f->flags & (ACC_PUBLIC | ACC_PRIVATE | ACC_PROTECTED);
-
- if ((i != 0 && i != ACC_PUBLIC && i != ACC_PRIVATE && i != ACC_PROTECTED) ||
- ((f->flags & (ACC_FINAL | ACC_VOLATILE)) == (ACC_FINAL | ACC_VOLATILE))) {
- exceptions_throw_classformaterror(c,
- "Illegal field modifiers: 0x%X",
- f->flags);
- return false;
- }
-
- if (c->flags & ACC_INTERFACE) {
- if (((f->flags & (ACC_STATIC | ACC_PUBLIC | ACC_FINAL))
- != (ACC_STATIC | ACC_PUBLIC | ACC_FINAL)) ||
- f->flags & ACC_TRANSIENT) {
- exceptions_throw_classformaterror(c,
- "Illegal field modifiers: 0x%X",
- f->flags);
- return false;
- }
- }
- }
-#endif /* ENABLE_VERIFIER */
-
- f->type = jtype = descriptor_to_basic_type(f->descriptor); /* data type */
- f->offset = 0; /* offset from start of object */
- f->class = c;
-
- switch (f->type) {
- case TYPE_INT:
- f->value.i = 0;
- break;
-
- case TYPE_FLT:
- f->value.f = 0.0;
- break;
-
- case TYPE_DBL:
- f->value.d = 0.0;
- break;
-
- case TYPE_ADR:
- f->value.a = NULL;
- if (!(f->flags & ACC_STATIC))
- c->flags |= ACC_CLASS_HAS_POINTERS;
- break;
-
- case TYPE_LNG:
-#if U8_AVAILABLE
- f->value.l = 0;
-#else
- f->value.l.low = 0;
- f->value.l.high = 0;
-#endif
- break;
- }
-
- /* read attributes */
- if (!suck_check_classbuffer_size(cb, 2))
- return false;
-
- attrnum = suck_u2(cb);
- for (i = 0; i < attrnum; i++) {
- if (!suck_check_classbuffer_size(cb, 2))
- return false;
-
- if (!(u = class_getconstant(c, suck_u2(cb), CONSTANT_Utf8)))
- return false;
-
- if (u == utf_ConstantValue) {
- if (!suck_check_classbuffer_size(cb, 4 + 2))
- return false;
-
- /* check attribute length */
-
- if (suck_u4(cb) != 2) {
- exceptions_throw_classformaterror(c, "Wrong size for VALUE attribute");
- return false;
- }
-
- /* constant value attribute */
-
- if (pindex != field_load_NOVALUE) {
- exceptions_throw_classformaterror(c, "Multiple ConstantValue attributes");
- return false;
- }
-
- /* index of value in constantpool */
-
- pindex = suck_u2(cb);
-
- /* initialize field with value from constantpool */
- switch (jtype) {
- case TYPE_INT: {
- constant_integer *ci;
-
- if (!(ci = class_getconstant(c, pindex, CONSTANT_Integer)))
- return false;
-
- f->value.i = ci->value;
- }
- break;
-
- case TYPE_LNG: {
- constant_long *cl;
-
- if (!(cl = class_getconstant(c, pindex, CONSTANT_Long)))
- return false;
-
- f->value.l = cl->value;
- }
- break;
-
- case TYPE_FLT: {
- constant_float *cf;
-
- if (!(cf = class_getconstant(c, pindex, CONSTANT_Float)))
- return false;
-
- f->value.f = cf->value;
- }
- break;
-
- case TYPE_DBL: {
- constant_double *cd;
-
- if (!(cd = class_getconstant(c, pindex, CONSTANT_Double)))
- return false;
-
- f->value.d = cd->value;
- }
- break;
-
- case TYPE_ADR:
- if (!(u = class_getconstant(c, pindex, CONSTANT_String)))
- return false;
-
- /* create javastring from compressed utf8-string */
- f->value.a = literalstring_new(u);
- break;
-
- default:
- log_text("Invalid Constant - Type");
- }
- }
-#if defined(ENABLE_JAVASE)
- else if (u == utf_Signature) {
- /* Signature */
-
- if (!loader_load_attribute_signature(cb, &(f->signature)))
- return false;
- }
-#endif
- else {
- /* unknown attribute */
-
- if (!loader_skip_attribute_body(cb))
- return false;
- }
- }
-
- /* everything was ok */
-
- return true;
-}
-
-
-/* loader_load_method **********************************************************
-
- Loads a method from the class file and fills an existing
- 'methodinfo' structure. For native methods, the function pointer
- field is set to the real function pointer, for JavaVM methods a
- pointer to the compiler is used preliminarily.
-
- method_info {
- u2 access_flags;
- u2 name_index;
- u2 descriptor_index;
- u2 attributes_count;
- attribute_info attributes[attribute_count];
- }
-
- attribute_info {
- u2 attribute_name_index;
- u4 attribute_length;
- u1 info[attribute_length];
- }
-
- LineNumberTable_attribute {
- u2 attribute_name_index;
- u4 attribute_length;
- u2 line_number_table_length;
- {
- u2 start_pc;
- u2 line_number;
- } line_number_table[line_number_table_length];
- }
-
-*******************************************************************************/
-
-static bool loader_load_method(classbuffer *cb, methodinfo *m,
- descriptor_pool *descpool)
-{
- classinfo *c;
- int argcount;
- s4 i, j, k, l;
- utf *u;
- u2 name_index;
- u2 descriptor_index;
- u2 attributes_count;
- u2 attribute_name_index;
- utf *attribute_name;
- u2 code_attributes_count;
- u2 code_attribute_name_index;
- utf *code_attribute_name;
-
- /* get classinfo */
-
- c = cb->class;
-
-#if defined(ENABLE_THREADS)
- lock_init_object_lock(&m->header);
-#endif
-
-#if defined(ENABLE_STATISTICS)
- if (opt_stat)
- count_all_methods++;
-#endif
-
- /* all fields of m have been zeroed in load_class_from_classbuffer */
-
- m->class = c;
-
- if (!suck_check_classbuffer_size(cb, 2 + 2 + 2))
- return false;
-
- /* access flags */
-
- m->flags = suck_u2(cb);
-
- /* name */
-
- name_index = suck_u2(cb);
-
- if (!(u = class_getconstant(c, name_index, CONSTANT_Utf8)))
- return false;
-
- m->name = u;
-
- /* descriptor */
-
- descriptor_index = suck_u2(cb);
-
- if (!(u = class_getconstant(c, descriptor_index, CONSTANT_Utf8)))
- return false;
-
- m->descriptor = u;
-
- if (!descriptor_pool_add(descpool, u, &argcount))
- return false;
-
-#ifdef ENABLE_VERIFIER
- if (opt_verify) {
- if (!is_valid_name_utf(m->name)) {
- exceptions_throw_classformaterror(c, "Method with invalid name");
- return false;
- }
-
- if (m->name->text[0] == '<' &&
- m->name != utf_init && m->name != utf_clinit) {
- exceptions_throw_classformaterror(c, "Method with invalid special name");
- return false;
- }
- }
-#endif /* ENABLE_VERIFIER */
-
- if (!(m->flags & ACC_STATIC))
- argcount++; /* count the 'this' argument */
-
-#ifdef ENABLE_VERIFIER
- if (opt_verify) {
- if (argcount > 255) {
- exceptions_throw_classformaterror(c, "Too many arguments in signature");
- return false;
- }
-
- /* check flag consistency */
- if (m->name != utf_clinit) {
- i = (m->flags & (ACC_PUBLIC | ACC_PRIVATE | ACC_PROTECTED));
-
- if (i != 0 && i != ACC_PUBLIC && i != ACC_PRIVATE && i != ACC_PROTECTED) {
- exceptions_throw_classformaterror(c,
- "Illegal method modifiers: 0x%X",
- m->flags);
- return false;
- }
-
- if (m->flags & ACC_ABSTRACT) {
- if ((m->flags & (ACC_FINAL | ACC_NATIVE | ACC_PRIVATE |
- ACC_STATIC | ACC_STRICT | ACC_SYNCHRONIZED))) {
- exceptions_throw_classformaterror(c,
- "Illegal method modifiers: 0x%X",
- m->flags);
- return false;
- }
- }
-
- if (c->flags & ACC_INTERFACE) {
- if ((m->flags & (ACC_ABSTRACT | ACC_PUBLIC)) != (ACC_ABSTRACT | ACC_PUBLIC)) {
- exceptions_throw_classformaterror(c,
- "Illegal method modifiers: 0x%X",
- m->flags);
- return false;
- }
- }
-
- if (m->name == utf_init) {
- if (m->flags & (ACC_STATIC | ACC_FINAL | ACC_SYNCHRONIZED |
- ACC_NATIVE | ACC_ABSTRACT)) {
- exceptions_throw_classformaterror(c, "Instance initialization method has invalid flags set");
- return false;
- }
- }
- }
- }
-#endif /* ENABLE_VERIFIER */
-
- /* mark the method as monomorphic until further notice */
-
- m->flags |= ACC_METHOD_MONOMORPHIC;
-
- /* non-abstract methods have an implementation in this class */
-
- if (!(m->flags & ACC_ABSTRACT))
- m->flags |= ACC_METHOD_IMPLEMENTED;
-
- if (!suck_check_classbuffer_size(cb, 2))
- return false;
-
- /* attributes count */
-
- attributes_count = suck_u2(cb);
-
- for (i = 0; i < attributes_count; i++) {
- if (!suck_check_classbuffer_size(cb, 2))
- return false;
-
- /* attribute name index */
-
- attribute_name_index = suck_u2(cb);
-
- if (!(attribute_name = class_getconstant(c, attribute_name_index, CONSTANT_Utf8)))
- return false;
-
- if (attribute_name == utf_Code) {
- /* Code */
- if (m->flags & (ACC_ABSTRACT | ACC_NATIVE)) {
- exceptions_throw_classformaterror(c, "Code attribute in native or abstract methods");
- return false;
- }
-
- if (m->jcode) {
- exceptions_throw_classformaterror(c, "Multiple Code attributes");
- return false;
- }
-
- if (!suck_check_classbuffer_size(cb, 4 + 2 + 2))
- return false;
-
- suck_u4(cb);
- m->maxstack = suck_u2(cb);
- m->maxlocals = suck_u2(cb);
-
- if (m->maxlocals < argcount) {
- exceptions_throw_classformaterror(c, "Arguments can't fit into locals");
- return false;
- }
-
- if (!suck_check_classbuffer_size(cb, 4))
- return false;
-
- m->jcodelength = suck_u4(cb);
-
- if (m->jcodelength == 0) {
- exceptions_throw_classformaterror(c, "Code of a method has length 0");
- return false;
- }
-
- if (m->jcodelength > 65535) {
- exceptions_throw_classformaterror(c, "Code of a method longer than 65535 bytes");
- return false;
- }
-
- if (!suck_check_classbuffer_size(cb, m->jcodelength))
- return false;
-
- m->jcode = MNEW(u1, m->jcodelength);
- suck_nbytes(m->jcode, cb, m->jcodelength);
-
- if (!suck_check_classbuffer_size(cb, 2))
- return false;
-
- m->rawexceptiontablelength = suck_u2(cb);
- if (!suck_check_classbuffer_size(cb, (2 + 2 + 2 + 2) * m->rawexceptiontablelength))
- return false;
-
- m->rawexceptiontable = MNEW(raw_exception_entry, m->rawexceptiontablelength);
-
-#if defined(ENABLE_STATISTICS)
- if (opt_stat) {
- count_vmcode_len += m->jcodelength + 18;
- count_extable_len +=
- m->rawexceptiontablelength * sizeof(raw_exception_entry);
- }
-#endif
-
- for (j = 0; j < m->rawexceptiontablelength; j++) {
- u4 idx;
- m->rawexceptiontable[j].startpc = suck_u2(cb);
- m->rawexceptiontable[j].endpc = suck_u2(cb);
- m->rawexceptiontable[j].handlerpc = suck_u2(cb);
-
- idx = suck_u2(cb);
- if (!idx) {
- m->rawexceptiontable[j].catchtype.any = NULL;
-
- } else {
- /* the classref is created later */
- if (!(m->rawexceptiontable[j].catchtype.any =
- (utf*)class_getconstant(c, idx, CONSTANT_Class)))
- return false;
- }
- }
-
- if (!suck_check_classbuffer_size(cb, 2))
- return false;
-
- /* code attributes count */
-
- code_attributes_count = suck_u2(cb);
-
- for (k = 0; k < code_attributes_count; k++) {
- if (!suck_check_classbuffer_size(cb, 2))
- return false;
-
- /* code attribute name index */
-
- code_attribute_name_index = suck_u2(cb);
-
- if (!(code_attribute_name = class_getconstant(c, code_attribute_name_index, CONSTANT_Utf8)))
- return false;
-
- /* check which code attribute */
-
- if (code_attribute_name == utf_LineNumberTable) {
- /* LineNumberTable */
- if (!suck_check_classbuffer_size(cb, 4 + 2))
- return false;
-
- /* attribute length */
-
- (void) suck_u4(cb);
-
- /* line number table length */
-
- m->linenumbercount = suck_u2(cb);
-
- if (!suck_check_classbuffer_size(cb,
- (2 + 2) * m->linenumbercount))
- return false;
-
- m->linenumbers = MNEW(lineinfo, m->linenumbercount);
-
-#if defined(ENABLE_STATISTICS)
- if (opt_stat)
- size_lineinfo += sizeof(lineinfo) * m->linenumbercount;
-#endif
-
- for (l = 0; l < m->linenumbercount; l++) {
- m->linenumbers[l].start_pc = suck_u2(cb);
- m->linenumbers[l].line_number = suck_u2(cb);
- }
- }
-#if defined(ENABLE_JAVASE)
- else if (code_attribute_name == utf_StackMapTable) {
- /* StackTableMap */
-
- if (!stackmap_load_attribute_stackmaptable(cb, m))
- return false;
- }
-#endif
- else {
- /* unknown code attribute */
-
- if (!loader_skip_attribute_body(cb))
- return false;
- }
- }
- }
- else if (attribute_name == utf_Exceptions) {
- /* Exceptions */
-
- if (m->thrownexceptions != NULL) {
- exceptions_throw_classformaterror(c, "Multiple Exceptions attributes");
- return false;
- }
-
- if (!suck_check_classbuffer_size(cb, 4 + 2))
- return false;
-
- /* attribute length */
-
- (void) suck_u4(cb);
-
- m->thrownexceptionscount = suck_u2(cb);
-
- if (!suck_check_classbuffer_size(cb, 2 * m->thrownexceptionscount))
- return false;
-
- m->thrownexceptions = MNEW(classref_or_classinfo, m->thrownexceptionscount);
-
- for (j = 0; j < m->thrownexceptionscount; j++) {
- /* the classref is created later */
- if (!((m->thrownexceptions)[j].any =
- (utf*) class_getconstant(c, suck_u2(cb), CONSTANT_Class)))
- return false;
- }
- }
-#if defined(ENABLE_JAVASE)
- else if (attribute_name == utf_Signature) {
- /* Signature */
-
- if (!loader_load_attribute_signature(cb, &(m->signature)))
- return false;
- }
-#endif
- else {
- /* unknown attribute */
-
- if (!loader_skip_attribute_body(cb))
- return false;
- }
- }
-
- if ((m->jcode == NULL) && !(m->flags & (ACC_ABSTRACT | ACC_NATIVE))) {
- exceptions_throw_classformaterror(c, "Missing Code attribute");
- return false;
- }
-
- /* initialize the hit countdown field */
-
-#if defined(ENABLE_REPLACEMENT)
- m->hitcountdown = METHOD_INITIAL_HIT_COUNTDOWN;
-#endif
-
- /* everything was ok */
-
- return true;
-}
-
-
/* load_class_from_sysloader ***************************************************
Load the class with the given name using the system class loader
classinfo *load_class_from_sysloader(utf *name)
{
- methodinfo *m;
- java_objectheader *cl;
- classinfo *c;
+ methodinfo *m;
+ classloader *cl;
+ classinfo *c;
assert(class_java_lang_Object);
assert(class_java_lang_ClassLoader);
*******************************************************************************/
-classinfo *load_class_from_classloader(utf *name, java_objectheader *cl)
+classinfo *load_class_from_classloader(utf *name, classloader *cl)
{
- java_objectheader *o;
- classinfo *c;
- classinfo *tmpc;
- java_objectheader *string;
+ java_handle_t *o;
+ classinfo *c;
+ classinfo *tmpc;
+ java_handle_t *string;
#if defined(ENABLE_RT_TIMING)
struct timespec time_start, time_lookup, time_prepare, time_java,
time_cache;
RT_TIMING_GET_TIME(time_java);
- c = (classinfo *) o;
+ c = LLNI_classinfo_unwrap(o);
if (c != NULL) {
/* Store this class in the loaded class cache. If another
The super class and the interfaces implemented by this class need
not be loaded. The link is set later by the function 'class_link'.
- The loaded class is removed from the list 'unloadedclasses' and
- added to the list 'unlinkedclasses'.
-
SYNCHRONIZATION:
This function is NOT synchronized!
RT_TIMING_GET_TIME(time_setup);
/* load fields */
+
if (!suck_check_classbuffer_size(cb, 2))
goto return_exception;
c->fieldscount = suck_u2(cb);
-#if defined(ENABLE_GC_CACAO)
- c->fields = MNEW(fieldinfo, c->fieldscount);
+ c->fields = MNEW(fieldinfo, c->fieldscount);
+
MZERO(c->fields, fieldinfo, c->fieldscount);
-#else
- c->fields = GCNEW_UNCOLLECTABLE(fieldinfo, c->fieldscount);
-#endif
for (i = 0; i < c->fieldscount; i++) {
- if (!load_field(cb, &(c->fields[i]),descpool))
+ if (!field_load(cb, &(c->fields[i]), descpool))
goto return_exception;
}
RT_TIMING_GET_TIME(time_fields);
/* load methods */
+
if (!suck_check_classbuffer_size(cb, 2))
goto return_exception;
c->methodscount = suck_u2(cb);
- c->methods = MNEW(methodinfo, c->methodscount);
+ c->methods = MNEW(methodinfo, c->methodscount);
MZERO(c->methods, methodinfo, c->methodscount);
for (i = 0; i < c->methodscount; i++) {
- if (!loader_load_method(cb, &(c->methods[i]), descpool))
+ if (!method_load(cb, &(c->methods[i]), descpool))
goto return_exception;
}
*******************************************************************************/
-classinfo *load_newly_created_array(classinfo *c, java_objectheader *loader)
+classinfo *load_newly_created_array(classinfo *c, classloader *loader)
{
classinfo *comp = NULL;
methodinfo *clone;
assert(comp->state & CLASS_LOADED);
- if (opt_eager)
- if (!link_class(c))
- return NULL;
-
/* the array's flags are that of the component class */
c->flags = (comp->flags & ~ACC_INTERFACE) | ACC_FINAL | ACC_ABSTRACT;
c->classloader = comp->classloader;
assert(comp->state & CLASS_LOADED);
- if (opt_eager)
- if (!link_class(c))
- return NULL;
-
/* the array's flags are that of the component class */
c->flags = (comp->flags & ~ACC_INTERFACE) | ACC_FINAL | ACC_ABSTRACT;
c->classloader = comp->classloader;
c->super.cls = class_java_lang_Object;
#if defined(ENABLE_JAVASE)
- c->interfacescount = 2;
- c->interfaces = MNEW(classref_or_classinfo, 2);
- if (opt_eager) {
- classinfo *tc;
+ c->interfacescount = 2;
+ c->interfaces = MNEW(classref_or_classinfo, 2);
+ c->interfaces[0].cls = class_java_lang_Cloneable;
+ c->interfaces[1].cls = class_java_io_Serializable;
- tc = class_java_lang_Cloneable;
- assert(tc->state & CLASS_LOADED);
- list_add_first(&unlinkedclasses, tc);
- c->interfaces[0].cls = tc;
-
- tc = class_java_io_Serializable;
- assert(tc->state & CLASS_LOADED);
- list_add_first(&unlinkedclasses, tc);
- c->interfaces[1].cls = tc;
- }
- else {
- c->interfaces[0].cls = class_java_lang_Cloneable;
- c->interfaces[1].cls = class_java_io_Serializable;
- }
#elif defined(ENABLE_JAVAME_CLDC1_1)
- c->interfacescount = 0;
- c->interfaces = NULL;
+
+ c->interfacescount = 0;
+ c->interfaces = NULL;
+
#else
-#error unknow Java configuration
+# error unknow Java configuration
#endif
c->methodscount = 1;
projects / cacao.git / blobdiff