/* src/vmcore/linker.c - class linker functions
- 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
+ Copyright (C) 1996-2005, 2006, 2007, 2008
+ CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
This file is part of CACAO.
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
- $Id: linker.c 7561 2007-03-23 19:10:35Z twisti $
-
*/
#include "config.h"
#include <assert.h>
+#include <stdint.h>
#include "vm/types.h"
#include "mm/memory.h"
+
#include "native/native.h"
-#if defined(ENABLE_THREADS)
-# include "threads/native/lock.h"
-#else
-# include "threads/none/lock.h"
-#endif
+#include "threads/lock-common.h"
#include "toolbox/logging.h"
#include "vm/access.h"
+#include "vm/array.h"
#include "vm/exceptions.h"
+#include "vm/primitive.hpp"
#include "vm/stringlocal.h"
#include "vm/vm.h"
#include "vmcore/options.h"
#include "vmcore/rt-timing.h"
+
+/* debugging macros ***********************************************************/
+
+#if !defined(NDEBUG)
+# define TRACELINKCLASS(c) \
+ do { \
+ if (opt_TraceLinkClass) { \
+ log_start(); \
+ log_print("[Linking "); \
+ class_print((c)); \
+ log_print("]"); \
+ log_finish(); \
+ } \
+ } while (0)
+#else
+# define TRACELINKCLASS(c)
+#endif
+
+
/* #include "vm/resolve.h" */
/* copied prototype to avoid bootstrapping problem: */
classinfo *resolve_classref_or_classinfo_eager(classref_or_classinfo cls, bool checkaccess);
#endif
#if !defined(NDEBUG) && defined(ENABLE_INLINING)
-#define INLINELOG(code) do { if (opt_inline_debug_log) { code } } while (0)
+#define INLINELOG(code) do { if (opt_TraceInlining) { code } } while (0)
#else
#define INLINELOG(code)
#endif
static s4 interfaceindex; /* sequential numbering of interfaces */
static s4 classvalue;
-
-/* primitivetype_table *********************************************************
-
- Structure for primitive classes: contains the class for wrapping
- the primitive type, the primitive class, the name of the class for
- wrapping, the one character type signature and the name of the
- primitive class.
-
- CAUTION: Don't change the order of the types. This table is indexed
- by the ARRAYTYPE_ constants (except ARRAYTYPE_OBJECT).
-
-*******************************************************************************/
-
-primitivetypeinfo primitivetype_table[PRIMITIVETYPE_COUNT] = {
- { NULL, NULL, "java/lang/Integer", 'I', "int" , "[I", NULL, NULL },
- { NULL, NULL, "java/lang/Long", 'J', "long" , "[J", NULL, NULL },
- { NULL, NULL, "java/lang/Float", 'F', "float" , "[F", NULL, NULL },
- { NULL, NULL, "java/lang/Double", 'D', "double" , "[D", NULL, NULL },
- { NULL, NULL, NULL, 0 , NULL , NULL, NULL, NULL },
- { NULL, NULL, "java/lang/Byte", 'B', "byte" , "[B", NULL, NULL },
- { NULL, NULL, "java/lang/Character", 'C', "char" , "[C", NULL, NULL },
- { NULL, NULL, "java/lang/Short", 'S', "short" , "[S", NULL, NULL },
- { NULL, NULL, "java/lang/Boolean", 'Z', "boolean" , "[Z", NULL, NULL },
- { NULL, NULL, NULL, 0 , NULL , NULL, NULL, NULL },
-#if defined(ENABLE_JAVASE)
- { NULL, NULL, "java/lang/Void", 'V', "void" , NULL, NULL, NULL }
-#else
- { NULL, NULL, NULL, 0 , NULL , NULL, NULL, NULL },
-#endif
-};
+java_object_t *linker_classrenumber_lock;
/* private functions **********************************************************/
-static bool link_primitivetype_table(void);
static classinfo *link_class_intern(classinfo *c);
static arraydescriptor *link_array(classinfo *c);
static void linker_compute_class_values(classinfo *c);
static s4 class_highestinterface(classinfo *c);
+/* dummy structures for alinment checks ***************************************/
+
+typedef struct dummy_alignment_long_t dummy_alignment_long_t;
+typedef struct dummy_alignment_double_t dummy_alignment_double_t;
+
+struct dummy_alignment_long_t {
+ int32_t i;
+ int64_t l;
+};
+
+struct dummy_alignment_double_t {
+ int32_t i;
+ double d;
+};
+
+
/* linker_init *****************************************************************
- Initializes the linker subsystem.
+ Initializes the linker subsystem and links classes required for the
+ primitive table.
*******************************************************************************/
-bool linker_init(void)
+void linker_preinit(void)
{
- /* reset interface index */
+ TRACESUBSYSTEMINITIALIZATION("linker_preinit");
- interfaceindex = 0;
+ /* Check for if alignment for long and double matches what we
+ assume for the current architecture. */
- /* link java.lang.Class as first class of the system, because we
- need it's vftbl for all other classes so we can use a class as
- object */
+#if defined(__I386__) || (defined(__ARM__) && !defined(__ARM_EABI__)) || (defined(__POWERPC__) && defined(__DARWIN__)) || defined(__M68K__)
+ /* Define a define here which is later checked when we use this
+ offset. */
- if (!link_class(class_java_lang_Class))
- return false;
+# define LINKER_ALIGNMENT_LONG_DOUBLE 4
- /* now set the header.vftbl of all classes which were created
- before java.lang.Class was linked */
+ if (OFFSET(dummy_alignment_long_t, l) != 4)
+ vm_abort("linker_preinit: long alignment is different from what assumed: %d != %d",
+ OFFSET(dummy_alignment_long_t, l), 4);
- class_postset_header_vftbl();
+ if (OFFSET(dummy_alignment_double_t, d) != 4)
+ vm_abort("linker_preinit: double alignment is different from what assumed: %d != %d",
+ OFFSET(dummy_alignment_double_t, d), 4);
+#else
+# define LINKER_ALIGNMENT_LONG_DOUBLE 8
- /* link important system classes */
+ if (OFFSET(dummy_alignment_long_t, l) != 8)
+ vm_abort("linker_preinit: long alignment is different from what assumed: %d != %d",
+ OFFSET(dummy_alignment_long_t, l), 8);
- if (!link_class(class_java_lang_Object))
- return false;
+ if (OFFSET(dummy_alignment_double_t, d) != 8)
+ vm_abort("linker_preinit: double alignment is different from what assumed: %d != %d",
+ OFFSET(dummy_alignment_double_t, d), 8);
+#endif
- if (!link_class(class_java_lang_String))
- return false;
+ /* Reset interface index. */
+
+ interfaceindex = 0;
+
+#if defined(ENABLE_THREADS)
+ /* create the global lock object */
+
+ linker_classrenumber_lock = NEW(java_object_t);
+
+ LOCK_INIT_OBJECT_LOCK(linker_classrenumber_lock);
+#endif
+
+ /* Link the most basic classes. */
+
+ if (!link_class(class_java_lang_Object))
+ vm_abort("linker_preinit: linking java/lang/Object failed");
#if defined(ENABLE_JAVASE)
if (!link_class(class_java_lang_Cloneable))
- return false;
+ vm_abort("linker_preinit: linking java/lang/Cloneable failed");
if (!link_class(class_java_io_Serializable))
- return false;
+ vm_abort("linker_preinit: linking java/io/Serializable failed");
#endif
+}
- /* link classes for wrapping primitive types */
+/* linker_init *****************************************************************
+
+ Links all classes required in the VM.
+
+*******************************************************************************/
+
+void linker_init(void)
+{
+ TRACESUBSYSTEMINITIALIZATION("linker_init");
+
+ /* Link java.lang.Class as first class of the system, because we
+ need it's vftbl for all other classes so we can use a class as
+ object. */
+
+ if (!link_class(class_java_lang_Class))
+ vm_abort("linker_init: linking java/lang/Class failed");
+
+ /* Now set the header.vftbl of all classes which were created
+ before java.lang.Class was linked. */
+
+ class_postset_header_vftbl();
+
+ /* Link primitive-type wrapping classes. */
#if defined(ENABLE_JAVASE)
if (!link_class(class_java_lang_Void))
- return false;
+ vm_abort("linker_init: linking failed");
#endif
if (!link_class(class_java_lang_Boolean))
- return false;
+ vm_abort("linker_init: linking failed");
if (!link_class(class_java_lang_Byte))
- return false;
+ vm_abort("linker_init: linking failed");
if (!link_class(class_java_lang_Character))
- return false;
+ vm_abort("linker_init: linking failed");
if (!link_class(class_java_lang_Short))
- return false;
+ vm_abort("linker_init: linking failed");
if (!link_class(class_java_lang_Integer))
- return false;
+ vm_abort("linker_init: linking failed");
if (!link_class(class_java_lang_Long))
- return false;
+ vm_abort("linker_init: linking failed");
if (!link_class(class_java_lang_Float))
- return false;
+ vm_abort("linker_init: linking failed");
if (!link_class(class_java_lang_Double))
- return false;
+ vm_abort("linker_init: linking failed");
+ /* Link important system classes. */
- /* load some other important classes */
+ if (!link_class(class_java_lang_String))
+ vm_abort("linker_init: linking java/lang/String failed");
#if defined(ENABLE_JAVASE)
if (!link_class(class_java_lang_ClassLoader))
- return false;
+ vm_abort("linker_init: linking failed");
if (!link_class(class_java_lang_SecurityManager))
- return false;
+ vm_abort("linker_init: linking failed");
#endif
if (!link_class(class_java_lang_System))
- return false;
+ vm_abort("linker_init: linking failed");
if (!link_class(class_java_lang_Thread))
- return false;
+ vm_abort("linker_init: linking failed");
#if defined(ENABLE_JAVASE)
if (!link_class(class_java_lang_ThreadGroup))
- return false;
+ vm_abort("linker_init: linking failed");
#endif
-#if defined(WITH_CLASSPATH_GNU)
+ if (!link_class(class_java_lang_Throwable))
+ vm_abort("linker_init: linking failed");
+
+#if defined(WITH_JAVA_RUNTIME_LIBRARY_GNU_CLASSPATH)
if (!link_class(class_java_lang_VMSystem))
- return false;
+ vm_abort("linker_init: linking failed");
if (!link_class(class_java_lang_VMThread))
- return false;
+ vm_abort("linker_init: linking failed");
+
+ if (!link_class(class_java_lang_VMThrowable))
+ vm_abort("linker_init: linking failed");
#endif
+ /* Important system exceptions. */
+
+ if (!link_class(class_java_lang_Exception))
+ vm_abort("linker_init: linking failed");
+
+ if (!link_class(class_java_lang_ClassNotFoundException))
+ vm_abort("linker_init: linking failed");
+
+ if (!link_class(class_java_lang_RuntimeException))
+ vm_abort("linker_init: linking failed");
/* some classes which may be used more often */
#if defined(ENABLE_JAVASE)
if (!link_class(class_java_lang_StackTraceElement))
- return false;
+ vm_abort("linker_init: linking failed");
if (!link_class(class_java_lang_reflect_Constructor))
- return false;
+ vm_abort("linker_init: linking failed");
if (!link_class(class_java_lang_reflect_Field))
- return false;
+ vm_abort("linker_init: linking failed");
if (!link_class(class_java_lang_reflect_Method))
- return false;
+ vm_abort("linker_init: linking failed");
+
+# if defined(WITH_JAVA_RUNTIME_LIBRARY_GNU_CLASSPATH)
+ if (!link_class(class_java_lang_reflect_VMConstructor))
+ vm_abort("linker_init: linking failed");
+
+ if (!link_class(class_java_lang_reflect_VMField))
+ vm_abort("linker_init: linking failed");
+
+ if (!link_class(class_java_lang_reflect_VMMethod))
+ vm_abort("linker_init: linking failed");
+# endif
if (!link_class(class_java_security_PrivilegedAction))
- return false;
+ vm_abort("linker_init: linking failed");
if (!link_class(class_java_util_Vector))
- return false;
+ vm_abort("linker_init: linking failed");
+
+ if (!link_class(class_java_util_HashMap))
+ vm_abort("linker_init: linking failed");
+
+# if defined(WITH_JAVA_RUNTIME_LIBRARY_OPENJDK)
+ if (!link_class(class_sun_reflect_MagicAccessorImpl))
+ vm_abort("linker_init: linking failed");
+# endif
if (!link_class(arrayclass_java_lang_Object))
- return false;
+ vm_abort("linker_init: linking failed");
#endif
/* pseudo class for Arraystubs (extends java.lang.Object) */
- pseudo_class_Arraystub =
+ pseudo_class_Arraystub =
class_create_classinfo(utf_new_char("$ARRAYSTUB$"));
- pseudo_class_Arraystub->state |= CLASS_LOADED;
- pseudo_class_Arraystub->super.cls = class_java_lang_Object;
+ pseudo_class_Arraystub->state |= CLASS_LOADED;
+ pseudo_class_Arraystub->super = class_java_lang_Object;
#if defined(ENABLE_JAVASE)
- pseudo_class_Arraystub->interfacescount = 2;
- pseudo_class_Arraystub->interfaces = MNEW(classref_or_classinfo, 2);
- pseudo_class_Arraystub->interfaces[0].cls = class_java_lang_Cloneable;
- pseudo_class_Arraystub->interfaces[1].cls = class_java_io_Serializable;
+
+ pseudo_class_Arraystub->interfacescount = 2;
+ pseudo_class_Arraystub->interfaces = MNEW(classinfo*, 2);
+ pseudo_class_Arraystub->interfaces[0] = class_java_lang_Cloneable;
+ pseudo_class_Arraystub->interfaces[1] = class_java_io_Serializable;
+
#elif defined(ENABLE_JAVAME_CLDC1_1)
- pseudo_class_Arraystub->interfacescount = 0;
- pseudo_class_Arraystub->interfaces = NULL;
+
+ pseudo_class_Arraystub->interfacescount = 0;
+ pseudo_class_Arraystub->interfaces = NULL;
+
+#else
+# error unknown Java configuration
#endif
- if (!classcache_store_unique(pseudo_class_Arraystub)) {
- log_text("could not cache pseudo_class_Arraystub");
- assert(0);
- }
+ if (!classcache_store_unique(pseudo_class_Arraystub))
+ vm_abort("linker_init: could not cache pseudo_class_Arraystub");
if (!link_class(pseudo_class_Arraystub))
- return false;
+ vm_abort("linker_init: linking pseudo_class_Arraystub failed");
/* pseudo class representing the null type */
- pseudo_class_Null = class_create_classinfo(utf_new_char("$NULL$"));
+ pseudo_class_Null = class_create_classinfo(utf_new_char("$NULL$"));
pseudo_class_Null->state |= CLASS_LOADED;
- pseudo_class_Null->super.cls = class_java_lang_Object;
+ pseudo_class_Null->super = class_java_lang_Object;
if (!classcache_store_unique(pseudo_class_Null))
vm_abort("linker_init: could not cache pseudo_class_Null");
if (!link_class(pseudo_class_Null))
- return false;
+ vm_abort("linker_init: linking failed");
/* pseudo class representing new uninitialized objects */
- pseudo_class_New = class_create_classinfo(utf_new_char("$NEW$"));
+ pseudo_class_New = class_create_classinfo(utf_new_char("$NEW$"));
pseudo_class_New->state |= CLASS_LOADED;
pseudo_class_New->state |= CLASS_LINKED; /* XXX is this allright? */
- pseudo_class_New->super.cls = class_java_lang_Object;
+ pseudo_class_New->super = class_java_lang_Object;
if (!classcache_store_unique(pseudo_class_New))
vm_abort("linker_init: could not cache pseudo_class_New");
- /* create classes representing primitive types */
-
- if (!link_primitivetype_table())
- return false;
-
-
/* Correct vftbl-entries (retarded loading and linking of class
java/lang/String). */
stringtable_update();
-
- return true;
-}
-
-
-/* link_primitivetype_table ****************************************************
-
- Create classes representing primitive types.
-
-*******************************************************************************/
-
-static bool link_primitivetype_table(void)
-{
- classinfo *c;
- utf *u;
- s4 i;
-
- for (i = 0; i < PRIMITIVETYPE_COUNT; i++) {
- /* skip dummies */
-
- if (!primitivetype_table[i].name)
- continue;
-
- /* create primitive class */
-
- c = class_create_classinfo(utf_new_char(primitivetype_table[i].name));
-
- /* primitive classes don't have a super class */
-
- c->super.any = NULL;
-
- /* set flags and mark it as primitive class */
-
- c->flags = ACC_PUBLIC | ACC_FINAL | ACC_ABSTRACT | ACC_CLASS_PRIMITIVE;
-
- /* prevent loader from loading primitive class */
-
- c->state |= CLASS_LOADED;
-
- /* INFO: don't put primitive classes into the classcache */
-
- if (!link_class(c))
- return false;
-
- primitivetype_table[i].class_primitive = c;
-
- /* create class for wrapping the primitive type */
-
- u = utf_new_char(primitivetype_table[i].wrapname);
- c = load_class_bootstrap(u);
-
- if (c == NULL)
- return false;
-
- primitivetype_table[i].class_wrap = c;
-
- /* create the primitive array class */
-
- if (primitivetype_table[i].arrayname) {
- u = utf_new_char(primitivetype_table[i].arrayname);
- c = class_create_classinfo(u);
- c = load_newly_created_array(c, NULL);
-
- if (c == NULL)
- return false;
-
- primitivetype_table[i].arrayclass = c;
-
- assert(c->state & CLASS_LOADED);
-
- if (!(c->state & CLASS_LINKED))
- if (!link_class(c))
- return false;
-
- primitivetype_table[i].arrayvftbl = c->vftbl;
- }
- }
-
- return true;
}
LOCK_MONITOR_ENTER(c);
- /* maybe the class is already linked */
+ /* Maybe the class is currently linking or is already linked.*/
- if (c->state & CLASS_LINKED) {
+ if ((c->state & CLASS_LINKING) || (c->state & CLASS_LINKED)) {
LOCK_MONITOR_EXIT(c);
return c;
r = link_class_intern(c);
- /* if return value is NULL, we had a problem and the class is not linked */
+ /* If return value is NULL, we had a problem and the class is not
+ linked. */
- if (!r)
+ if (r == NULL)
c->state &= ~CLASS_LINKING;
#if defined(ENABLE_STATISTICS)
classinfo *cg;
classinfo *cs;
- cg = mg->class;
- cs = ms->class;
+ cg = mg->clazz;
+ cs = ms->clazz;
/* overriding a final method is illegal */
if ((ms->flags & ACC_METHOD_IMPLEMENTED) && ms->name != utf_init) {
do {
+
+#if defined(ENABLE_TLH)
+ if (mg->flags & ACC_METHOD_MONOMORPHY_USED) {
+ printf("%s/%s is evil! the siner is %s/%s\n", mg->clazz->name->text, mg->name->text,
+ ms->clazz->name->text, ms->name->text);
+ ms->flags |= ACC_METHOD_PARENT_MONOMORPHY_USED;
+ }
+#endif
+
if (mg->flags & ACC_METHOD_IMPLEMENTED) {
/* this adds another implementation */
RT_TIMING_GET_TIME(time_start);
- /* the class is already linked */
-
- if (c->state & CLASS_LINKED)
- return c;
-
-#if !defined(NDEBUG)
- if (linkverbose)
- log_message_class("Linking class: ", c);
-#endif
+ TRACELINKCLASS(c);
/* the class must be loaded */
/* XXX should this be a specific exception? */
assert(c->state & CLASS_LOADED);
+ /* This is check in link_class. */
+
+ assert(!(c->state & CLASS_LINKED));
+
/* cache the self-reference of this class */
/* we do this for cases where the defining loader of the class */
/* has not yet been recorded as an initiating loader for the class */
arraydesc = NULL;
worklist = NULL;
- /* check interfaces */
+ /* Link the super interfaces. */
for (i = 0; i < c->interfacescount; i++) {
- /* resolve this super interface */
-
- if ((tc = resolve_classref_or_classinfo_eager(c->interfaces[i], true)) == NULL)
- return NULL;
-
- c->interfaces[i].cls = tc;
-
- /* detect circularity */
-
- if (tc == c) {
- exceptions_throw_classcircularityerror(c);
- return NULL;
- }
-
- assert(tc->state & CLASS_LOADED);
-
- if (!(tc->flags & ACC_INTERFACE)) {
- exceptions_throw_incompatibleclasschangeerror(tc,
- "Implementing class");
- return NULL;
- }
+ tc = c->interfaces[i];
if (!(tc->state & CLASS_LINKED))
if (!link_class(tc))
super = NULL;
- if (c->super.any == NULL) { /* class java.lang.Object */
+ /* Check for java/lang/Object. */
+
+ if (c->super == NULL) {
c->index = 0;
- c->instancesize = sizeof(java_objectheader);
+ c->instancesize = sizeof(java_object_t);
vftbllength = supervftbllength = 0;
c->finalizer = NULL;
+ }
+ else {
+ /* Get super class. */
- } else {
- /* resolve super class */
-
- if ((super = resolve_classref_or_classinfo_eager(c->super, true)) == NULL)
- return NULL;
-
- c->super.cls = super;
-
- /* detect circularity */
-
- if (super == c) {
- exceptions_throw_classcircularityerror(c);
- return NULL;
- }
-
- assert(super->state & CLASS_LOADED);
-
- if (super->flags & ACC_INTERFACE) {
- /* java.lang.IncompatibleClassChangeError: class a has interface java.lang.Cloneable as super class */
- log_text("Interface specified as super class");
- assert(0);
- }
-
- /* Don't allow extending final classes */
-
- if (super->flags & ACC_FINAL) {
- exceptions_throw_verifyerror(NULL,
- "Cannot inherit from final class");
- return NULL;
- }
+ super = c->super;
- /* link the superclass if necessary */
+ /* Link the super class if necessary. */
if (!(super->state & CLASS_LINKED))
if (!link_class(super))
return NULL;
- /* OR the ACC_CLASS_HAS_POINTERS flag */
+ /* OR the ACC_CLASS_HAS_POINTERS and the ACC_CLASS_REFERENCE_*
+ flags. */
- c->flags |= (super->flags & ACC_CLASS_HAS_POINTERS);
+ c->flags |= (super->flags &
+ (ACC_CLASS_HAS_POINTERS | ACC_CLASS_REFERENCE_MASK));
/* handle array classes */
}
}
- tc = tc->super.cls;
+ tc = tc->super;
}
notfoundvftblindex:
/* check all interfaces of the abstract class */
for (i = 0; i < c->interfacescount; i++) {
- ic = c->interfaces[i].cls;
+ ic = c->interfaces[i];
for (j = 0; j < ic->methodscount; j++) {
im = &(ic->methods[j]);
if ((im->name == utf_clinit) || (im->name == utf_init))
continue;
- for (tc = c; tc != NULL; tc = tc->super.cls) {
+ for (tc = c; tc != NULL; tc = tc->super) {
for (k = 0; k < tc->methodscount; k++) {
if (method_canoverwrite(im, &(tc->methods[k])))
goto noabstractmethod;
c->methodscount + abstractmethodscount);
for (i = 0; i < c->interfacescount; i++) {
- ic = c->interfaces[i].cls;
+ ic = c->interfaces[i];
for (j = 0; j < ic->methodscount; j++) {
im = &(ic->methods[j]);
if ((im->name == utf_clinit) || (im->name == utf_init))
continue;
- for (tc = c; tc != NULL; tc = tc->super.cls) {
+ for (tc = c; tc != NULL; tc = tc->super) {
for (k = 0; k < tc->methodscount; k++) {
if (method_canoverwrite(im, &(tc->methods[k])))
goto noabstractmethod2;
MCOPY(am, im, methodinfo, 1);
am->vftblindex = (vftbllength++);
- am->class = c;
+ am->clazz = c;
am->flags |= ACC_MIRANDA;
noabstractmethod2:
interfacetablelength = 0;
- for (tc = c; tc != NULL; tc = tc->super.cls) {
+ for (tc = c; tc != NULL; tc = tc->super) {
for (i = 0; i < tc->interfacescount; i++) {
- s4 h = class_highestinterface(tc->interfaces[i].cls) + 1;
+ s4 h = class_highestinterface(tc->interfaces[i]) + 1;
if (h > interfacetablelength)
interfacetablelength = h;
(interfacetablelength - 1) * (interfacetablelength > 1));
c->vftbl = v;
- v->class = c;
+ v->clazz = c;
v->vftbllength = vftbllength;
v->interfacetablelength = interfacetablelength;
v->arraydesc = arraydesc;
m->stubroutine = intrp_createcompilerstub(m);
else
#endif
- m->stubroutine = createcompilerstub(m);
+ m->stubroutine = codegen_generate_stub_compiler(m);
#else
m->stubroutine = intrp_createcompilerstub(m);
#endif
if (!(f->flags & ACC_STATIC)) {
dsize = descriptor_typesize(f->parseddesc);
-#if defined(__I386__) || defined(__ARM__)
- /* On i386 and ARM we align double and s8 fields to
- 4-bytes. This matches what GCC does for struct
- members. We must do the same as gcc here because the
- offsets in native header structs like java_lang_Double
- must match the offsets of the Java fields
- (eg. java.lang.Double.value). */
+#if defined(__I386__) || (defined(__ARM__) && !defined(__ARM_EABI__)) || (defined(__POWERPC__) && defined(__DARWIN__)) || defined(__M68K__)
+ /* On some architectures and configurations we need to
+ align long (int64_t) and double fields to 4-bytes to
+ match what GCC does for struct members. We must do the
+ same as GCC here because the offsets in native header
+ structs like java_lang_Double must match the offsets of
+ the Java fields (eg. java.lang.Double.value). */
+
+# if LINKER_ALIGNMENT_LONG_DOUBLE != 4
+# error alignment of long and double is not 4
+# endif
c->instancesize = MEMORY_ALIGN(c->instancesize, 4);
#else
+
+# if LINKER_ALIGNMENT_LONG_DOUBLE != 8
+# error alignment of long and double is not 8
+# endif
+
c->instancesize = MEMORY_ALIGN(c->instancesize, dsize);
#endif
/* add interfaces */
- for (tc = c; tc != NULL; tc = tc->super.cls)
+ for (tc = c; tc != NULL; tc = tc->super)
for (i = 0; i < tc->interfacescount; i++)
- if (!linker_addinterface(c, tc->interfaces[i].cls))
+ if (!linker_addinterface(c, tc->interfaces[i]))
return NULL;
RT_TIMING_GET_TIME(time_fill_iftbl);
FREE(wi, method_worklist);
}
-#if !defined(NDEBUG)
- if (linkverbose)
- log_message_class("Linking done class: ", c);
-#endif
-
RT_TIMING_TIME_DIFF(time_start ,time_resolving ,RT_TIMING_LINK_RESOLVE);
RT_TIMING_TIME_DIFF(time_resolving ,time_compute_vftbl,RT_TIMING_LINK_C_VFTBL);
RT_TIMING_TIME_DIFF(time_compute_vftbl,time_abstract ,RT_TIMING_LINK_ABSTRACT);
/* c is an array of references */
desc->arraytype = ARRAYTYPE_OBJECT;
desc->componentsize = sizeof(void*);
- desc->dataoffset = OFFSET(java_objectarray, data);
+ desc->dataoffset = OFFSET(java_objectarray_t, data);
compvftbl = comp->vftbl;
switch (c->name->text[1]) {
case 'Z':
desc->arraytype = ARRAYTYPE_BOOLEAN;
- desc->dataoffset = OFFSET(java_booleanarray,data);
+ desc->dataoffset = OFFSET(java_booleanarray_t,data);
desc->componentsize = sizeof(u1);
break;
case 'B':
desc->arraytype = ARRAYTYPE_BYTE;
- desc->dataoffset = OFFSET(java_bytearray,data);
+ desc->dataoffset = OFFSET(java_bytearray_t,data);
desc->componentsize = sizeof(u1);
break;
case 'C':
desc->arraytype = ARRAYTYPE_CHAR;
- desc->dataoffset = OFFSET(java_chararray,data);
+ desc->dataoffset = OFFSET(java_chararray_t,data);
desc->componentsize = sizeof(u2);
break;
case 'D':
desc->arraytype = ARRAYTYPE_DOUBLE;
- desc->dataoffset = OFFSET(java_doublearray,data);
+ desc->dataoffset = OFFSET(java_doublearray_t,data);
desc->componentsize = sizeof(double);
break;
case 'F':
desc->arraytype = ARRAYTYPE_FLOAT;
- desc->dataoffset = OFFSET(java_floatarray,data);
+ desc->dataoffset = OFFSET(java_floatarray_t,data);
desc->componentsize = sizeof(float);
break;
case 'I':
desc->arraytype = ARRAYTYPE_INT;
- desc->dataoffset = OFFSET(java_intarray,data);
+ desc->dataoffset = OFFSET(java_intarray_t,data);
desc->componentsize = sizeof(s4);
break;
case 'J':
desc->arraytype = ARRAYTYPE_LONG;
- desc->dataoffset = OFFSET(java_longarray,data);
+ desc->dataoffset = OFFSET(java_longarray_t,data);
desc->componentsize = sizeof(s8);
break;
case 'S':
desc->arraytype = ARRAYTYPE_SHORT;
- desc->dataoffset = OFFSET(java_shortarray,data);
+ desc->dataoffset = OFFSET(java_shortarray_t,data);
desc->componentsize = sizeof(s2);
break;
XXX
+ ATTENTION: DO NOT REMOVE ANY OF THE LOCKING MECHANISMS BELOW:
+ This function needs to take the class renumber lock and stop the
+ world during class renumbering. The lock is used in C code which
+ is not that performance critical. Whereas JIT code uses critical
+ sections to atomically access the class values.
+
*******************************************************************************/
static void linker_compute_subclasses(classinfo *c)
{
-#if defined(ENABLE_THREADS)
- compiler_lock();
-#endif
+ LOCK_MONITOR_ENTER(linker_classrenumber_lock);
if (!(c->flags & ACC_INTERFACE)) {
c->nextsub = NULL;
c->sub = NULL;
}
- if (!(c->flags & ACC_INTERFACE) && (c->super.any != NULL)) {
- c->nextsub = c->super.cls->sub;
- c->super.cls->sub = c;
+ if (!(c->flags & ACC_INTERFACE) && (c->super != NULL)) {
+ c->nextsub = c->super->sub;
+ c->super->sub = c;
}
classvalue = 0;
linker_compute_class_values(class_java_lang_Object);
-#if defined(ENABLE_THREADS)
- compiler_unlock();
-#endif
+ LOCK_MONITOR_EXIT(linker_classrenumber_lock);
}
#endif
for (j = 0; j < ic->methodscount; j++) {
- for (sc = c; sc != NULL; sc = sc->super.cls) {
+ for (sc = c; sc != NULL; sc = sc->super) {
for (k = 0; k < sc->methodscount; k++) {
m = &(sc->methods[k]);
/* add superinterfaces of this interface */
for (j = 0; j < ic->interfacescount; j++)
- if (!linker_addinterface(c, ic->interfaces[j].cls))
+ if (!linker_addinterface(c, ic->interfaces[j]))
return false;
/* everything ok */
h = c->index;
for (i = 0; i < c->interfacescount; i++) {
- h2 = class_highestinterface(c->interfaces[i].cls);
+ h2 = class_highestinterface(c->interfaces[i]);
if (h2 > h)
h = h2;
projects / cacao.git / blobdiff