gcc/libjava/boehm.cc

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// boehm.cc - interface between libjava and Boehm GC.
/* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
Free Software Foundation
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This file is part of libgcj.
This software is copyrighted work licensed under the terms of the
Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
details. */
#include <config.h>
#include <stdio.h>
#include <limits.h>
#include <jvm.h>
#include <gcj/cni.h>
#include <java/lang/Class.h>
#include <java/lang/reflect/Modifier.h>
#include <java-interp.h>
// More nastiness: the GC wants to define TRUE and FALSE. We don't
// need the Java definitions (themselves a hack), so we undefine them.
#undef TRUE
#undef FALSE
// We include two autoconf headers. Avoid multiple definition warnings.
#undef PACKAGE_NAME
#undef PACKAGE_STRING
#undef PACKAGE_TARNAME
#undef PACKAGE_VERSION
lang.c (java_init): Handle flag_indirect_classes. 2006-04-21 Andrew Haley <aph@redhat.com> * lang.c (java_init): Handle flag_indirect_classes. * jvgenmain.c: Use "class$$" instead of "class$". * mangle.c (java_mangle_decl): Accept RECORD_TYPEs sw well as DECLs. (mangle_class_field): Special case "class$$" as well as "class$". * constants.c (build_ref_from_constant_pool): If flag_indirect_classes, generate a ref into the heap. * decl.c (constants_field_decl_node, constants_data_field_decl_node): New. * class.c (build_static_class_ref): New. (build_classdollar_field): Factor out from build_class_ref(). (make_field_value): Handle static fields in heap. (make_class_data): Make sure we get a static ref to class. Make class initializer const if flag_indirect_classes. (register_class): Build a class_ref for initialization if flag_indirect_classes. (emit_indirect_register_classes): New. 2006-04-21 Andrew Haley <aph@redhat.com> * include/execution.h (struct _Jv_CompiledEngine): Define for compiled classes. * java/lang/natClassLoader.cc (_Jv_RegisterClasses): Call _Jv_RegisterLibForGc. (_Jv_RegisterClasses_Counted): Likewise. (_Jv_NewClassFromInitializer): New. (_Jv_RegisterNewClasses): New. * sources.am: Regenerate. * boehm.cc (_Jv_GC_has_static_roots): new. (_Jv_InitGC): Call GC_register_has_static_roots_callback. (filename_node, find_file, _Jv_print_gc_store, new_node, _Jv_GC_has_static_roots, _Jv_RegisterLibForGc): New. * scripts/makemake.tcl: Add -fno-indirect-classes. * Makefile.in: Regenerate. * link.cc (resolve_pool_entry): Allocate constant pool. Allocate fields. From-SVN: r113224
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#ifdef HAVE_DLFCN_H
#undef _GNU_SOURCE
#define _GNU_SOURCE
#include <dlfcn.h>
#endif
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extern "C"
{
#include <gc_config.h>
// Set GC_DEBUG before including gc.h!
#ifdef LIBGCJ_GC_DEBUG
# define GC_DEBUG
#endif
#include <gc_mark.h>
#include <gc_gcj.h>
#include <javaxfc.h> // GC_finalize_all declaration.
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#ifdef THREAD_LOCAL_ALLOC
# define GC_REDIRECT_TO_LOCAL
# include <gc_local_alloc.h>
#endif
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// From boehm's misc.c
void GC_enable();
void GC_disable();
};
#define MAYBE_MARK(Obj, Top, Limit, Source) \
Top=GC_MARK_AND_PUSH((GC_PTR) Obj, Top, Limit, (GC_PTR *) Source)
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Implement bitmap descriptor based marking for Boehm GC. 2000-09-30 Hans Boehm <boehm@acm.org> Bryce McKinlay <bryce@albatross.co.nz> Implement bitmap descriptor based marking for Boehm GC. * configure.in: Define JC1GCSPEC. Set it if boehm-gc is used. * configure: Rebuilt. * libgcj.spec.in: Pass JC1GCSPEC to jc1. * include/jvm.h (struct _Jv_VTable): New field `gc_descr'. New inline method get_finalizer(). (struct _Jv_ArrayVTable): Ditto. Declare method array with NUM_OBJECT_METHODS elements instead of NUM_OBJECT_METHODS + 1. (_Jv_AllocObj): Add new jclass parameter. (_Jv_AllocArray): Ditto. (_Jv_BuildGCDescr): New prototype. * prims.cc (_Jv_AllocObject): Rename parameter `c' to `klass'. Pass `klass' to _Jv_AllocObj. Don't set the new object's vtable. Use get_finalizer() instead of direct finalizer vtable offset. (_Jv_NewObjectArray): Rename parameter `clas' to `klass'. Pass `klass' to _Jv_AllocArray. Don't set the new array's vtable. (_Jv_NewPrimArray): Call _Jv_FindArrayClass before _Jv_AllocObj. Pass `klass' to _Jv_AllocObj. Don't set the new array's vtable. * resolve.cc (METHOD_NOT_THERE, METHOD_INACCESSIBLE): New #defines. (_Jv_ResolvePoolEntry): Use METHOD_NOT_THERE and METHOD_INACCESSIBLE. (_Jv_DetermineVTableIndex): Ditto. (_Jv_PrepareClass): Ditto. Remove offset-by-one adjustments from vtable calculations to account for new gc_descr field. * boehm.cc: #include gc_gcj.h. (obj_kind_x, obj_free_list): `#if 0'-ed away. (_Jv_MarkObj): Check that vtable doesn't point to a cleared object. New commentary from HB. Mark the classes vtable. (_Jv_MarkArray): Check that vtable doesn't point to a cleared object. (GC_DEFAULT_DESCR): New #define. (_Jv_BuildGCDescr): New function. Use GC_DEFAULT_DESCR, for now. (_Jv_AllocObj): New parameter `klass'. Use GC_GCJ_MALLOC (). (_Jv_AllocArray): New parameter `klass'. Allocate with GC_MALLOC and scan conservativly if size is less than min_heap_addr. Set vtable pointer of new object before returning. (_Jv_AllocBytes): Use GC_MALLOC_ATOMIC, not GC_GENERIC_MALLOC. (_Jv_InitGC): Call GC_init_gcj_malloc(). Don't set up marking and allocation for obj_kind_x. * nogc.cc (_Jv_BuildGCDescr): New function. Return 0. (_Jv_AllocObj): Set vtable on returned object. (_Jv_AllocArray): Ditto. * java/lang/Class.h (_Jv_NewObjectArray): No longer a friend. (_Jv_NewPrimArray): Ditto. (_Jv_AllocObj): Declare as a friend. (_Jv_AllocArray): Ditto. * java/lang/natClassLoader.cc (_Jv_FindArrayClass): Copy gc_descr from &ObjectClass into new array class. Remove offset-by-one adjustments from `method' size calculations to account for gc_descr field. Co-Authored-By: Bryce McKinlay <bryce@albatross.co.nz> From-SVN: r36679
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// `kind' index used when allocating Java arrays.
static int array_kind_x;
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// Freelist used for Java arrays.
static void **array_free_list;
lang.c (java_init): Handle flag_indirect_classes. 2006-04-21 Andrew Haley <aph@redhat.com> * lang.c (java_init): Handle flag_indirect_classes. * jvgenmain.c: Use "class$$" instead of "class$". * mangle.c (java_mangle_decl): Accept RECORD_TYPEs sw well as DECLs. (mangle_class_field): Special case "class$$" as well as "class$". * constants.c (build_ref_from_constant_pool): If flag_indirect_classes, generate a ref into the heap. * decl.c (constants_field_decl_node, constants_data_field_decl_node): New. * class.c (build_static_class_ref): New. (build_classdollar_field): Factor out from build_class_ref(). (make_field_value): Handle static fields in heap. (make_class_data): Make sure we get a static ref to class. Make class initializer const if flag_indirect_classes. (register_class): Build a class_ref for initialization if flag_indirect_classes. (emit_indirect_register_classes): New. 2006-04-21 Andrew Haley <aph@redhat.com> * include/execution.h (struct _Jv_CompiledEngine): Define for compiled classes. * java/lang/natClassLoader.cc (_Jv_RegisterClasses): Call _Jv_RegisterLibForGc. (_Jv_RegisterClasses_Counted): Likewise. (_Jv_NewClassFromInitializer): New. (_Jv_RegisterNewClasses): New. * sources.am: Regenerate. * boehm.cc (_Jv_GC_has_static_roots): new. (_Jv_InitGC): Call GC_register_has_static_roots_callback. (filename_node, find_file, _Jv_print_gc_store, new_node, _Jv_GC_has_static_roots, _Jv_RegisterLibForGc): New. * scripts/makemake.tcl: Add -fno-indirect-classes. * Makefile.in: Regenerate. * link.cc (resolve_pool_entry): Allocate constant pool. Allocate fields. From-SVN: r113224
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static int _Jv_GC_has_static_roots (const char *filename, void *, size_t);
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// This is called by the GC during the mark phase. It marks a Java
// object. We use `void *' arguments and return, and not what the
// Boehm GC wants, to avoid pollution in our headers.
void *
_Jv_MarkObj (void *addr, void *msp, void *msl, void *env)
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{
struct GC_ms_entry *mark_stack_ptr = (struct GC_ms_entry *)msp;
struct GC_ms_entry *mark_stack_limit = (struct GC_ms_entry *)msl;
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if (env == (void *)1) /* Object allocated with debug allocator. */
addr = (GC_PTR)GC_USR_PTR_FROM_BASE(addr);
jobject obj = (jobject) addr;
Implement bitmap descriptor based marking for Boehm GC. 2000-09-30 Hans Boehm <boehm@acm.org> Bryce McKinlay <bryce@albatross.co.nz> Implement bitmap descriptor based marking for Boehm GC. * configure.in: Define JC1GCSPEC. Set it if boehm-gc is used. * configure: Rebuilt. * libgcj.spec.in: Pass JC1GCSPEC to jc1. * include/jvm.h (struct _Jv_VTable): New field `gc_descr'. New inline method get_finalizer(). (struct _Jv_ArrayVTable): Ditto. Declare method array with NUM_OBJECT_METHODS elements instead of NUM_OBJECT_METHODS + 1. (_Jv_AllocObj): Add new jclass parameter. (_Jv_AllocArray): Ditto. (_Jv_BuildGCDescr): New prototype. * prims.cc (_Jv_AllocObject): Rename parameter `c' to `klass'. Pass `klass' to _Jv_AllocObj. Don't set the new object's vtable. Use get_finalizer() instead of direct finalizer vtable offset. (_Jv_NewObjectArray): Rename parameter `clas' to `klass'. Pass `klass' to _Jv_AllocArray. Don't set the new array's vtable. (_Jv_NewPrimArray): Call _Jv_FindArrayClass before _Jv_AllocObj. Pass `klass' to _Jv_AllocObj. Don't set the new array's vtable. * resolve.cc (METHOD_NOT_THERE, METHOD_INACCESSIBLE): New #defines. (_Jv_ResolvePoolEntry): Use METHOD_NOT_THERE and METHOD_INACCESSIBLE. (_Jv_DetermineVTableIndex): Ditto. (_Jv_PrepareClass): Ditto. Remove offset-by-one adjustments from vtable calculations to account for new gc_descr field. * boehm.cc: #include gc_gcj.h. (obj_kind_x, obj_free_list): `#if 0'-ed away. (_Jv_MarkObj): Check that vtable doesn't point to a cleared object. New commentary from HB. Mark the classes vtable. (_Jv_MarkArray): Check that vtable doesn't point to a cleared object. (GC_DEFAULT_DESCR): New #define. (_Jv_BuildGCDescr): New function. Use GC_DEFAULT_DESCR, for now. (_Jv_AllocObj): New parameter `klass'. Use GC_GCJ_MALLOC (). (_Jv_AllocArray): New parameter `klass'. Allocate with GC_MALLOC and scan conservativly if size is less than min_heap_addr. Set vtable pointer of new object before returning. (_Jv_AllocBytes): Use GC_MALLOC_ATOMIC, not GC_GENERIC_MALLOC. (_Jv_InitGC): Call GC_init_gcj_malloc(). Don't set up marking and allocation for obj_kind_x. * nogc.cc (_Jv_BuildGCDescr): New function. Return 0. (_Jv_AllocObj): Set vtable on returned object. (_Jv_AllocArray): Ditto. * java/lang/Class.h (_Jv_NewObjectArray): No longer a friend. (_Jv_NewPrimArray): Ditto. (_Jv_AllocObj): Declare as a friend. (_Jv_AllocArray): Ditto. * java/lang/natClassLoader.cc (_Jv_FindArrayClass): Copy gc_descr from &ObjectClass into new array class. Remove offset-by-one adjustments from `method' size calculations to account for gc_descr field. Co-Authored-By: Bryce McKinlay <bryce@albatross.co.nz> From-SVN: r36679
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_Jv_VTable *dt = *(_Jv_VTable **) addr;
Implement bitmap descriptor based marking for Boehm GC. 2000-09-30 Hans Boehm <boehm@acm.org> Bryce McKinlay <bryce@albatross.co.nz> Implement bitmap descriptor based marking for Boehm GC. * configure.in: Define JC1GCSPEC. Set it if boehm-gc is used. * configure: Rebuilt. * libgcj.spec.in: Pass JC1GCSPEC to jc1. * include/jvm.h (struct _Jv_VTable): New field `gc_descr'. New inline method get_finalizer(). (struct _Jv_ArrayVTable): Ditto. Declare method array with NUM_OBJECT_METHODS elements instead of NUM_OBJECT_METHODS + 1. (_Jv_AllocObj): Add new jclass parameter. (_Jv_AllocArray): Ditto. (_Jv_BuildGCDescr): New prototype. * prims.cc (_Jv_AllocObject): Rename parameter `c' to `klass'. Pass `klass' to _Jv_AllocObj. Don't set the new object's vtable. Use get_finalizer() instead of direct finalizer vtable offset. (_Jv_NewObjectArray): Rename parameter `clas' to `klass'. Pass `klass' to _Jv_AllocArray. Don't set the new array's vtable. (_Jv_NewPrimArray): Call _Jv_FindArrayClass before _Jv_AllocObj. Pass `klass' to _Jv_AllocObj. Don't set the new array's vtable. * resolve.cc (METHOD_NOT_THERE, METHOD_INACCESSIBLE): New #defines. (_Jv_ResolvePoolEntry): Use METHOD_NOT_THERE and METHOD_INACCESSIBLE. (_Jv_DetermineVTableIndex): Ditto. (_Jv_PrepareClass): Ditto. Remove offset-by-one adjustments from vtable calculations to account for new gc_descr field. * boehm.cc: #include gc_gcj.h. (obj_kind_x, obj_free_list): `#if 0'-ed away. (_Jv_MarkObj): Check that vtable doesn't point to a cleared object. New commentary from HB. Mark the classes vtable. (_Jv_MarkArray): Check that vtable doesn't point to a cleared object. (GC_DEFAULT_DESCR): New #define. (_Jv_BuildGCDescr): New function. Use GC_DEFAULT_DESCR, for now. (_Jv_AllocObj): New parameter `klass'. Use GC_GCJ_MALLOC (). (_Jv_AllocArray): New parameter `klass'. Allocate with GC_MALLOC and scan conservativly if size is less than min_heap_addr. Set vtable pointer of new object before returning. (_Jv_AllocBytes): Use GC_MALLOC_ATOMIC, not GC_GENERIC_MALLOC. (_Jv_InitGC): Call GC_init_gcj_malloc(). Don't set up marking and allocation for obj_kind_x. * nogc.cc (_Jv_BuildGCDescr): New function. Return 0. (_Jv_AllocObj): Set vtable on returned object. (_Jv_AllocArray): Ditto. * java/lang/Class.h (_Jv_NewObjectArray): No longer a friend. (_Jv_NewPrimArray): Ditto. (_Jv_AllocObj): Declare as a friend. (_Jv_AllocArray): Ditto. * java/lang/natClassLoader.cc (_Jv_FindArrayClass): Copy gc_descr from &ObjectClass into new array class. Remove offset-by-one adjustments from `method' size calculations to account for gc_descr field. Co-Authored-By: Bryce McKinlay <bryce@albatross.co.nz> From-SVN: r36679
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// The object might not yet have its vtable set, or it might
// really be an object on the freelist. In either case, the vtable slot
// will either be 0, or it will point to a cleared object.
// This assumes Java objects have size at least 3 words,
// including the header. But this should remain true, since this
// should only be used with debugging allocation or with large objects.
if (__builtin_expect (! dt || !(dt -> get_finalizer()), false))
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return mark_stack_ptr;
jclass klass = dt->clas;
GC_PTR p;
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p = (GC_PTR) dt;
MAYBE_MARK (p, mark_stack_ptr, mark_stack_limit, obj);
[multiple changes] 2001-05-23 Tom Tromey <tromey@redhat.com> * posix-threads.cc (_Jv_self_cache): Renamed from self_cache. * gcj/Makefile.in: Rebuilt. * gcj/Makefile.am (gcj_HEADERS): Added libgcj-config.h. * gcj/javaprims.h: Include gcj/libgcj-config.h. * gcj/libgcj-config.h.in: New file. * libgcj.spec.in (*jc1): Added @HASH_SYNC_SPEC@. * configure: Rebuilt. * configure.in: Enable hash synchronization by default on some platforms. (HASH_SYNC_SPEC): New subst. (AC_CONFIG_HEADER): Added gcj/libgcj-config.h. Correctly use `test -z' instead of `test -n' in a couple places. (JV_HASH_SYNCHRONIZATION): Use AC_DEFINE; don't add to LIBGCJ_CXXFLAGS. * configure.host (enable_java_net_default): Initialize. (enable_hash_synchronization_default): New variable. 2001-05-23 Hans Boehm <Hans_Boehm@hp.com> * boehm.cc (_Jv_MarkObj): Don't mark sync_info when hash synchronization in use. (_Jv_MarkArray): Likewise. (_Jv_AllocBytes): Don't check return result. (handle_out_of_memory): New function. (_Jv_InitGC): Set GC_oom_fn. (trace_one_vtable): New global. (_Jv_AllocTraceOne): New function. * configure.in: Added --enable-hash-synchronization. * defineclass.cc, prims.cc, resolve.cc, java/lang/natString.cc, java/net/natInetAddress.cc: Remove _Jv_AllocBytesChecked. * nogc.cc (_Jv_AllocObj): Throw out-of-memory. (_Jv_AllocArray): Likewise. (_Jv_AllocBytes): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_AllocTraceOne): Likewise. * posix-threads.cc (_Jv_ThreadRegister): Handle slow pthread_self(). (self_cache): New global. (_Jv_ThreadSelf_out_of_line): New function. * prims.cc (_Jv_AllocBytesChecked): Removed. (_Jv_ThrowNoMemory): New function. (_Jv_AllocObject): Don't check for null return from allocator. (_Jv_NewObjectArray): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_NewPrimArray): Allocate pointer-free object if possible. * include/javaprims.h (_Jv_AllocPtrFreeObject): Declare. (_Jv_MonitorEnter, _Jv_MonitorExit): Don't return value. * include/boehm-gc.h (_Jv_AllocObj): Define. (_Jv_AllocPtrFreeObj): Define. * include/jvm.h (_Jv_AllocPtrFreeObj): Declare. (_Jv_ThrowNoMemory): Declare. (_Jv_AllocTraceOne): Declare. (_Jv_AllocBytesChecked): Removed. * include/posix-threads.h (_Jv_MutexInit, _Jv_MutexLock, _Jv_MutexUnlock): Handle LOCK_DEBUG. (_Jv_ThreadSelf): Handle case where system pthread_self() is slow. * java/lang/Class.h (Class): Declare _Jv_AllocPtrFreeObj as friend. * java/lang/Object.h (sync_info): Conditional upon presence of hash synchronization. * java/lang/natObject.cc: Much new code to handle thin locks and hash synchronization. * java/lang/natString.cc (_Jv_AllocString): Allocate pointer-free object if possible. From-SVN: r42519
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# ifndef JV_HASH_SYNCHRONIZATION
// Every object has a sync_info pointer.
p = (GC_PTR) obj->sync_info;
MAYBE_MARK (p, mark_stack_ptr, mark_stack_limit, obj);
[multiple changes] 2001-05-23 Tom Tromey <tromey@redhat.com> * posix-threads.cc (_Jv_self_cache): Renamed from self_cache. * gcj/Makefile.in: Rebuilt. * gcj/Makefile.am (gcj_HEADERS): Added libgcj-config.h. * gcj/javaprims.h: Include gcj/libgcj-config.h. * gcj/libgcj-config.h.in: New file. * libgcj.spec.in (*jc1): Added @HASH_SYNC_SPEC@. * configure: Rebuilt. * configure.in: Enable hash synchronization by default on some platforms. (HASH_SYNC_SPEC): New subst. (AC_CONFIG_HEADER): Added gcj/libgcj-config.h. Correctly use `test -z' instead of `test -n' in a couple places. (JV_HASH_SYNCHRONIZATION): Use AC_DEFINE; don't add to LIBGCJ_CXXFLAGS. * configure.host (enable_java_net_default): Initialize. (enable_hash_synchronization_default): New variable. 2001-05-23 Hans Boehm <Hans_Boehm@hp.com> * boehm.cc (_Jv_MarkObj): Don't mark sync_info when hash synchronization in use. (_Jv_MarkArray): Likewise. (_Jv_AllocBytes): Don't check return result. (handle_out_of_memory): New function. (_Jv_InitGC): Set GC_oom_fn. (trace_one_vtable): New global. (_Jv_AllocTraceOne): New function. * configure.in: Added --enable-hash-synchronization. * defineclass.cc, prims.cc, resolve.cc, java/lang/natString.cc, java/net/natInetAddress.cc: Remove _Jv_AllocBytesChecked. * nogc.cc (_Jv_AllocObj): Throw out-of-memory. (_Jv_AllocArray): Likewise. (_Jv_AllocBytes): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_AllocTraceOne): Likewise. * posix-threads.cc (_Jv_ThreadRegister): Handle slow pthread_self(). (self_cache): New global. (_Jv_ThreadSelf_out_of_line): New function. * prims.cc (_Jv_AllocBytesChecked): Removed. (_Jv_ThrowNoMemory): New function. (_Jv_AllocObject): Don't check for null return from allocator. (_Jv_NewObjectArray): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_NewPrimArray): Allocate pointer-free object if possible. * include/javaprims.h (_Jv_AllocPtrFreeObject): Declare. (_Jv_MonitorEnter, _Jv_MonitorExit): Don't return value. * include/boehm-gc.h (_Jv_AllocObj): Define. (_Jv_AllocPtrFreeObj): Define. * include/jvm.h (_Jv_AllocPtrFreeObj): Declare. (_Jv_ThrowNoMemory): Declare. (_Jv_AllocTraceOne): Declare. (_Jv_AllocBytesChecked): Removed. * include/posix-threads.h (_Jv_MutexInit, _Jv_MutexLock, _Jv_MutexUnlock): Handle LOCK_DEBUG. (_Jv_ThreadSelf): Handle case where system pthread_self() is slow. * java/lang/Class.h (Class): Declare _Jv_AllocPtrFreeObj as friend. * java/lang/Object.h (sync_info): Conditional upon presence of hash synchronization. * java/lang/natObject.cc: Much new code to handle thin locks and hash synchronization. * java/lang/natString.cc (_Jv_AllocString): Allocate pointer-free object if possible. From-SVN: r42519
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# endif
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natField.cc (BooleanClass): Don't define. * java/lang/reflect/natField.cc (BooleanClass): Don't define. * java/lang/reflect/natArray.cc (BooleanClass): Don't define. * java/lang/Class.h (Object): Added `class$' field. * java/lang/Object.h (Object): Added `class$' field. * defineclass.cc (ClassClass): Use `class$' form. (ClassObject): Likewise. * resolve.cc (ClassObject): Use `class$' form. (ObjectClass): Likewise. * interpret.cc (ClassError): Removed. * java/net/natPlainDatagramSocketImpl.cc (BooleanClass): Use `class$' form. (IntegerClass): Likewise. * java/net/natPlainSocketImpl.cc (BooleanClass): Use `class$' form. * java/lang/natClassLoader.cc (CloneableClass): Use `class$' form. (ObjectClass, ClassClass, VMClassLoaderClass, ClassLoaderClass, SerializableClass): Likewise. Include Serializable.h, Cloneable.h. * java/lang/natSystem.cc (SystemClass): Removed. (init_properties): Use `class$' form. * java/lang/natObject.cc (CloneableClass): Removed. (clone): Use `class$' form. * java/lang/natClass.cc (CloneableClass): Use `class$' form. (ObjectClass, ErrorClass, ClassClass, MethodClass, FieldClass, ConstructorClass): Likewise. * java/lang/reflect/natMethod.cc (ObjectClass): Use `class$' form. (ClassClass, VoidClass, ByteClass, ShortClass, CharacterClass, IntegerClass, LongClass, FloatClass, DoubleClass): Likewise. * java/io/natObjectInputStream.cc (ObjectClass): Use `class$' form. (ClassClass): Likewise. * include/jvm.h (StringClass): Use `class$' form. * prims.cc (ObjectClass): Removed. (_Jv_RunMain): Use `class$' form. (_Jv_AllocObject): Likewise. * jni.cc (ClassClass): Use `class$' form. (ThrowableClass): Likewise. (ObjectClass): Likewise. (MethodClass): Likewise. (ThreadGroupClass): Likewise. (NativeThreadClass): Likewise. * boehm.cc (ObjectClass): Removed. (ClassClass): Removed. (_Jv_MarkObj): Use `class$' form. * gcj/field.h (JvFieldIsRef): Use `class$' form. Include RawData.h. From-SVN: r36740
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if (__builtin_expect (klass == &java::lang::Class::class$, false))
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{
Implement bitmap descriptor based marking for Boehm GC. 2000-09-30 Hans Boehm <boehm@acm.org> Bryce McKinlay <bryce@albatross.co.nz> Implement bitmap descriptor based marking for Boehm GC. * configure.in: Define JC1GCSPEC. Set it if boehm-gc is used. * configure: Rebuilt. * libgcj.spec.in: Pass JC1GCSPEC to jc1. * include/jvm.h (struct _Jv_VTable): New field `gc_descr'. New inline method get_finalizer(). (struct _Jv_ArrayVTable): Ditto. Declare method array with NUM_OBJECT_METHODS elements instead of NUM_OBJECT_METHODS + 1. (_Jv_AllocObj): Add new jclass parameter. (_Jv_AllocArray): Ditto. (_Jv_BuildGCDescr): New prototype. * prims.cc (_Jv_AllocObject): Rename parameter `c' to `klass'. Pass `klass' to _Jv_AllocObj. Don't set the new object's vtable. Use get_finalizer() instead of direct finalizer vtable offset. (_Jv_NewObjectArray): Rename parameter `clas' to `klass'. Pass `klass' to _Jv_AllocArray. Don't set the new array's vtable. (_Jv_NewPrimArray): Call _Jv_FindArrayClass before _Jv_AllocObj. Pass `klass' to _Jv_AllocObj. Don't set the new array's vtable. * resolve.cc (METHOD_NOT_THERE, METHOD_INACCESSIBLE): New #defines. (_Jv_ResolvePoolEntry): Use METHOD_NOT_THERE and METHOD_INACCESSIBLE. (_Jv_DetermineVTableIndex): Ditto. (_Jv_PrepareClass): Ditto. Remove offset-by-one adjustments from vtable calculations to account for new gc_descr field. * boehm.cc: #include gc_gcj.h. (obj_kind_x, obj_free_list): `#if 0'-ed away. (_Jv_MarkObj): Check that vtable doesn't point to a cleared object. New commentary from HB. Mark the classes vtable. (_Jv_MarkArray): Check that vtable doesn't point to a cleared object. (GC_DEFAULT_DESCR): New #define. (_Jv_BuildGCDescr): New function. Use GC_DEFAULT_DESCR, for now. (_Jv_AllocObj): New parameter `klass'. Use GC_GCJ_MALLOC (). (_Jv_AllocArray): New parameter `klass'. Allocate with GC_MALLOC and scan conservativly if size is less than min_heap_addr. Set vtable pointer of new object before returning. (_Jv_AllocBytes): Use GC_MALLOC_ATOMIC, not GC_GENERIC_MALLOC. (_Jv_InitGC): Call GC_init_gcj_malloc(). Don't set up marking and allocation for obj_kind_x. * nogc.cc (_Jv_BuildGCDescr): New function. Return 0. (_Jv_AllocObj): Set vtable on returned object. (_Jv_AllocArray): Ditto. * java/lang/Class.h (_Jv_NewObjectArray): No longer a friend. (_Jv_NewPrimArray): Ditto. (_Jv_AllocObj): Declare as a friend. (_Jv_AllocArray): Ditto. * java/lang/natClassLoader.cc (_Jv_FindArrayClass): Copy gc_descr from &ObjectClass into new array class. Remove offset-by-one adjustments from `method' size calculations to account for gc_descr field. Co-Authored-By: Bryce McKinlay <bryce@albatross.co.nz> From-SVN: r36679
2000-09-30 11:56:58 +02:00
// Currently we allocate some of the memory referenced from class objects
// as pointerfree memory, and then mark it more intelligently here.
// We ensure that the ClassClass mark descriptor forces invocation of
// this procedure.
// Correctness of this is subtle, but it looks OK to me for now. For the incremental
// collector, we need to make sure that the class object is written whenever
// any of the subobjects are altered and may need rescanning. This may be tricky
// during construction, and this may not be the right way to do this with
// incremental collection.
// If we overflow the mark stack, we will rescan the class object, so we should
// be OK. The same applies if we redo the mark phase because win32 unmapped part
// of our root set. - HB
1999-04-07 16:42:40 +02:00
jclass c = (jclass) addr;
p = (GC_PTR) c->name;
MAYBE_MARK (p, mark_stack_ptr, mark_stack_limit, c);
p = (GC_PTR) c->superclass;
MAYBE_MARK (p, mark_stack_ptr, mark_stack_limit, c);
[multiple changes] 1999-08-09 Anthony Green <green@cygnus.com> * gij.cc: New file. * include/config.h.in: Rebuilt. * acconfig.h: Add INTERPRETER. * configure: Rebuilt. * Makefile.in: Rebuilt. * Makefile.am (libffi_files): Identify the libffi object files for inclusion in libgcj. (LIBFFIINCS): Define. * interpret.cc (gnu::gcj::runtime::MethodInvocation::continue1): Dummy definition for configurations without an interpreter. * java/net/natPlainSocketImpl.cc (getOption): Disamiguate call to java::lang::Boolean constructor. * include/java-interp.h: Always include java-cpool.h. * java/lang/natClassLoader.cc (getVMClassLoader0): Always return 0 when INTERPRETER not defined. * java/lang/Class.h (finalize): Define. * gnu/gcj/util/path/DirectoryPathEntry.java (getURL): Catch IOException from File.getCanonicalPath. (getStream): Likewise. * NEWS: More news. * THANKS: More thanks. 1999-08-09 Kresten Krab Thorup <krab@gnu.org> * resolve.cc (get_ffi_type_from_signature): Generate uint16 for jchar type. (_Jv_PrepareClass): Allow non-abstract classes to have abstract subclasses. (_Jv_ResolvePoolEntry): Revert subclass check for protected fields and methods. * interpret.cc (continue1/perform_invoke): Don't sign extend uint16 return val. (continue1/lshl,lshr): Push long, not int. (continue1/ulshr): Use UINT64, not long long. * defineclass.cc (handleFieldsEnd): Handle case when all fields are static. * java/lang/natClass.cc (forName): Add call to _Jv_InitClass. * java/lang/FirstThread.java (run): Add top-level exception handler. (run0): Renamed from run. 1999-08-08 Kresten Krab Thorup <krab@gnu.org> * configure.in (--with-interpreter): Added. * include/config.h.in (INTERPRETER): Added. * java/lang/ClassLoader.java: File replaced. * java/lang/VMClassLoader.java: New file. * java/lang/natClassLoader.cc: New file. * gnu/gcj/runtime/MethodInvocation.java: New file. * gnu/gcj/util/path/SearchPath.java: New file. * gnu/gcj/util/path/PathEntry.java: New file. * gnu/gcj/util/path/DirectoryPathEntry.java: New file. * gnu/gcj/util/path/ZipPathEntry.java: New file. * gnu/gcj/util/path/URLPathEntry.java: New file. * gnu/gcj/util/path/CacheEntry.java: New file. * include/java-interp.h: New file. * include/java-cpool.h: New file. * include/java-insns.h: New file. * defineclass.cc: New file. * interpret.cc: New file. * resolve.cc: New file. * java/lang/natClass.cc (loaded_classes, _Jv_RegisterClass, _Jv_RegisterClasses, _Jv_FindClassInCache, _Jv_FindClass, _Jv_NewClass, _Jv_FindArrayClass): Moved to natClassLoader.cc. (finalize): New. (STATE_NOTHING, STATE_RESOLVED, STATE_IN_PROGRESS, STATE_DONE, STATE_ERROR): Moved to java/lang/Class.h and renamed with JV_ prefix. (initializeClass): Use new JV_ prefixed names. Also, call ClassLoader::resolveClass instead of _Jv_ResolveClass. * java/lang/Class.h (JV_STATE_PRELOADING, JV_STATE_LOADING, JV_STATE_LOADED, JV_STATE_COMPILED, JV_STATE_PREPARED, JV_STATE_LINKED): New. (_Jv_WaitForState, _Jv_RegisterInitiatingLoader, _Jv_UnregisterClass, _Jv_InternClassStrings): New friends. (_Jv_IsInterpretedClass, _Jv_InitField, _Jv_LookupDeclaredMethod, _Jv_DetermineVTableIndex, _Jv_ResolvePoolEntry, _Jv_PrepareClass, _Jv_ClassReader, _Jv_InterpClass, _Jv_InterpMethod, _Jv_InterpMethodInvocation): New friends for interpreter. (finalize): New. (CONSTANT_Class, CONSTANT_String, etc.): Moved to include/java-cpool.h and renamed with JV_ prefix. * include/jvm.h (_Jv_makeUtf8Const, _Jv_makeUtf8TypeConst): New decls. (_Jv_UnregisterClass): New decl. * java/lang/natClassLoader.cc (_Jv_FindArrayClass): Added class loader argument. (_Jv_FindClass): Use class loader. * prims.cc (_Jv_makeUtf8Const): New function. (_Jv_NewObjectArray): Change use of _Jv_FindArrayClass. (_Jv_NewPrimArray): Ditto. (_Jv_FindClassFromSignature): Ditto. * java/lang/reflect/natArray.cc (newInstance): Ditto. * java/lang/reflect/natMethod.cc (getType): Ditto. * include/java-field.h (_Jv_Field::isRef): Make robust for non-resolved contexts. * boehm.cc (_Jv_MarkObj): Mark interpreter-related fields. Also, don't mark class->next field. * java/lang/VirtualMachineError.java: Added FIXME note. * configure.in (INTERPSPEC): New spec. * libgcj.spec.in: Added INTERPSPEC. * Makefile.am: Added gcjh friends for java/lang/VMClassLoader and gnu/gcj/runtime/MethodInvocation. (libgcj_la_SOURCES): Added resolve.cc defineclass.cc interpret.cc. (ordinary_java_source_files): Added above mentioned java classes. * configure: Rebuilt. * Makefile.in: Rebuilt. From-SVN: r28597
1999-08-08 16:06:23 +02:00
p = (GC_PTR) c->constants.tags;
MAYBE_MARK (p, mark_stack_ptr, mark_stack_limit, c);
p = (GC_PTR) c->constants.data;
MAYBE_MARK (p, mark_stack_ptr, mark_stack_limit, c);
1999-04-07 16:42:40 +02:00
// If the class is an array, then the methods field holds a
// pointer to the element class. If the class is primitive,
// then the methods field holds a pointer to the array class.
p = (GC_PTR) c->methods;
MAYBE_MARK (p, mark_stack_ptr, mark_stack_limit, c);
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p = (GC_PTR) c->fields;
MAYBE_MARK (p, mark_stack_ptr, mark_stack_limit, c);
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// The vtable might be allocated even for compiled code.
p = (GC_PTR) c->vtable;
MAYBE_MARK (p, mark_stack_ptr, mark_stack_limit, c);
p = (GC_PTR) c->interfaces;
MAYBE_MARK (p, mark_stack_ptr, mark_stack_limit, c);
p = (GC_PTR) c->loader;
MAYBE_MARK (p, mark_stack_ptr, mark_stack_limit, c);
// The dispatch tables can be allocated at runtime.
p = (GC_PTR) c->ancestors;
MAYBE_MARK (p, mark_stack_ptr, mark_stack_limit, c);
p = (GC_PTR) c->idt;
MAYBE_MARK (p, mark_stack_ptr, mark_stack_limit, c);
p = (GC_PTR) c->arrayclass;
MAYBE_MARK (p, mark_stack_ptr, mark_stack_limit, c);
p = (GC_PTR) c->protectionDomain;
MAYBE_MARK (p, mark_stack_ptr, mark_stack_limit, c);
p = (GC_PTR) c->hack_signers;
MAYBE_MARK (p, mark_stack_ptr, mark_stack_limit, c);
p = (GC_PTR) c->aux_info;
MAYBE_MARK (p, mark_stack_ptr, mark_stack_limit, c);
1999-04-07 16:42:40 +02:00
}
else
{
// NOTE: each class only holds information about the class
// itself. So we must do the marking for the entire inheritance
// tree in order to mark all fields. FIXME: what about
// interfaces? We skip Object here, because Object only has a
// sync_info, and we handled that earlier.
// Note: occasionally `klass' can be null. For instance, this
// can happen if a GC occurs between the point where an object
// is allocated and where the vtbl slot is set.
natField.cc (BooleanClass): Don't define. * java/lang/reflect/natField.cc (BooleanClass): Don't define. * java/lang/reflect/natArray.cc (BooleanClass): Don't define. * java/lang/Class.h (Object): Added `class$' field. * java/lang/Object.h (Object): Added `class$' field. * defineclass.cc (ClassClass): Use `class$' form. (ClassObject): Likewise. * resolve.cc (ClassObject): Use `class$' form. (ObjectClass): Likewise. * interpret.cc (ClassError): Removed. * java/net/natPlainDatagramSocketImpl.cc (BooleanClass): Use `class$' form. (IntegerClass): Likewise. * java/net/natPlainSocketImpl.cc (BooleanClass): Use `class$' form. * java/lang/natClassLoader.cc (CloneableClass): Use `class$' form. (ObjectClass, ClassClass, VMClassLoaderClass, ClassLoaderClass, SerializableClass): Likewise. Include Serializable.h, Cloneable.h. * java/lang/natSystem.cc (SystemClass): Removed. (init_properties): Use `class$' form. * java/lang/natObject.cc (CloneableClass): Removed. (clone): Use `class$' form. * java/lang/natClass.cc (CloneableClass): Use `class$' form. (ObjectClass, ErrorClass, ClassClass, MethodClass, FieldClass, ConstructorClass): Likewise. * java/lang/reflect/natMethod.cc (ObjectClass): Use `class$' form. (ClassClass, VoidClass, ByteClass, ShortClass, CharacterClass, IntegerClass, LongClass, FloatClass, DoubleClass): Likewise. * java/io/natObjectInputStream.cc (ObjectClass): Use `class$' form. (ClassClass): Likewise. * include/jvm.h (StringClass): Use `class$' form. * prims.cc (ObjectClass): Removed. (_Jv_RunMain): Use `class$' form. (_Jv_AllocObject): Likewise. * jni.cc (ClassClass): Use `class$' form. (ThrowableClass): Likewise. (ObjectClass): Likewise. (MethodClass): Likewise. (ThreadGroupClass): Likewise. (NativeThreadClass): Likewise. * boehm.cc (ObjectClass): Removed. (ClassClass): Removed. (_Jv_MarkObj): Use `class$' form. * gcj/field.h (JvFieldIsRef): Use `class$' form. Include RawData.h. From-SVN: r36740
2000-10-06 03:49:32 +02:00
while (klass && klass != &java::lang::Object::class$)
1999-04-07 16:42:40 +02:00
{
jfieldID field = JvGetFirstInstanceField (klass);
jint max = JvNumInstanceFields (klass);
for (int i = 0; i < max; ++i)
{
if (JvFieldIsRef (field))
{
jobject val = JvGetObjectField (obj, field);
p = (GC_PTR) val;
MAYBE_MARK (p, mark_stack_ptr, mark_stack_limit, obj);
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}
field = field->getNextField ();
1999-04-07 16:42:40 +02:00
}
klass = klass->getSuperclass();
}
}
return mark_stack_ptr;
}
// This is called by the GC during the mark phase. It marks a Java
// array (of objects). We use `void *' arguments and return, and not
// what the Boehm GC wants, to avoid pollution in our headers.
void *
_Jv_MarkArray (void *addr, void *msp, void *msl, void *env)
1999-04-07 16:42:40 +02:00
{
struct GC_ms_entry *mark_stack_ptr = (struct GC_ms_entry *)msp;
struct GC_ms_entry *mark_stack_limit = (struct GC_ms_entry *)msl;
if (env == (void *)1) /* Object allocated with debug allocator. */
addr = (void *)GC_USR_PTR_FROM_BASE(addr);
1999-04-07 16:42:40 +02:00
jobjectArray array = (jobjectArray) addr;
_Jv_VTable *dt = *(_Jv_VTable **) addr;
Implement bitmap descriptor based marking for Boehm GC. 2000-09-30 Hans Boehm <boehm@acm.org> Bryce McKinlay <bryce@albatross.co.nz> Implement bitmap descriptor based marking for Boehm GC. * configure.in: Define JC1GCSPEC. Set it if boehm-gc is used. * configure: Rebuilt. * libgcj.spec.in: Pass JC1GCSPEC to jc1. * include/jvm.h (struct _Jv_VTable): New field `gc_descr'. New inline method get_finalizer(). (struct _Jv_ArrayVTable): Ditto. Declare method array with NUM_OBJECT_METHODS elements instead of NUM_OBJECT_METHODS + 1. (_Jv_AllocObj): Add new jclass parameter. (_Jv_AllocArray): Ditto. (_Jv_BuildGCDescr): New prototype. * prims.cc (_Jv_AllocObject): Rename parameter `c' to `klass'. Pass `klass' to _Jv_AllocObj. Don't set the new object's vtable. Use get_finalizer() instead of direct finalizer vtable offset. (_Jv_NewObjectArray): Rename parameter `clas' to `klass'. Pass `klass' to _Jv_AllocArray. Don't set the new array's vtable. (_Jv_NewPrimArray): Call _Jv_FindArrayClass before _Jv_AllocObj. Pass `klass' to _Jv_AllocObj. Don't set the new array's vtable. * resolve.cc (METHOD_NOT_THERE, METHOD_INACCESSIBLE): New #defines. (_Jv_ResolvePoolEntry): Use METHOD_NOT_THERE and METHOD_INACCESSIBLE. (_Jv_DetermineVTableIndex): Ditto. (_Jv_PrepareClass): Ditto. Remove offset-by-one adjustments from vtable calculations to account for new gc_descr field. * boehm.cc: #include gc_gcj.h. (obj_kind_x, obj_free_list): `#if 0'-ed away. (_Jv_MarkObj): Check that vtable doesn't point to a cleared object. New commentary from HB. Mark the classes vtable. (_Jv_MarkArray): Check that vtable doesn't point to a cleared object. (GC_DEFAULT_DESCR): New #define. (_Jv_BuildGCDescr): New function. Use GC_DEFAULT_DESCR, for now. (_Jv_AllocObj): New parameter `klass'. Use GC_GCJ_MALLOC (). (_Jv_AllocArray): New parameter `klass'. Allocate with GC_MALLOC and scan conservativly if size is less than min_heap_addr. Set vtable pointer of new object before returning. (_Jv_AllocBytes): Use GC_MALLOC_ATOMIC, not GC_GENERIC_MALLOC. (_Jv_InitGC): Call GC_init_gcj_malloc(). Don't set up marking and allocation for obj_kind_x. * nogc.cc (_Jv_BuildGCDescr): New function. Return 0. (_Jv_AllocObj): Set vtable on returned object. (_Jv_AllocArray): Ditto. * java/lang/Class.h (_Jv_NewObjectArray): No longer a friend. (_Jv_NewPrimArray): Ditto. (_Jv_AllocObj): Declare as a friend. (_Jv_AllocArray): Ditto. * java/lang/natClassLoader.cc (_Jv_FindArrayClass): Copy gc_descr from &ObjectClass into new array class. Remove offset-by-one adjustments from `method' size calculations to account for gc_descr field. Co-Authored-By: Bryce McKinlay <bryce@albatross.co.nz> From-SVN: r36679
2000-09-30 11:56:58 +02:00
// Assumes size >= 3 words. That's currently true since arrays have
// a vtable, sync pointer, and size. If the sync pointer goes away,
// we may need to round up the size.
if (__builtin_expect (! dt || !(dt -> get_finalizer()), false))
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return mark_stack_ptr;
GC_PTR p;
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p = (GC_PTR) dt;
MAYBE_MARK (p, mark_stack_ptr, mark_stack_limit, array);
[multiple changes] 2001-05-23 Tom Tromey <tromey@redhat.com> * posix-threads.cc (_Jv_self_cache): Renamed from self_cache. * gcj/Makefile.in: Rebuilt. * gcj/Makefile.am (gcj_HEADERS): Added libgcj-config.h. * gcj/javaprims.h: Include gcj/libgcj-config.h. * gcj/libgcj-config.h.in: New file. * libgcj.spec.in (*jc1): Added @HASH_SYNC_SPEC@. * configure: Rebuilt. * configure.in: Enable hash synchronization by default on some platforms. (HASH_SYNC_SPEC): New subst. (AC_CONFIG_HEADER): Added gcj/libgcj-config.h. Correctly use `test -z' instead of `test -n' in a couple places. (JV_HASH_SYNCHRONIZATION): Use AC_DEFINE; don't add to LIBGCJ_CXXFLAGS. * configure.host (enable_java_net_default): Initialize. (enable_hash_synchronization_default): New variable. 2001-05-23 Hans Boehm <Hans_Boehm@hp.com> * boehm.cc (_Jv_MarkObj): Don't mark sync_info when hash synchronization in use. (_Jv_MarkArray): Likewise. (_Jv_AllocBytes): Don't check return result. (handle_out_of_memory): New function. (_Jv_InitGC): Set GC_oom_fn. (trace_one_vtable): New global. (_Jv_AllocTraceOne): New function. * configure.in: Added --enable-hash-synchronization. * defineclass.cc, prims.cc, resolve.cc, java/lang/natString.cc, java/net/natInetAddress.cc: Remove _Jv_AllocBytesChecked. * nogc.cc (_Jv_AllocObj): Throw out-of-memory. (_Jv_AllocArray): Likewise. (_Jv_AllocBytes): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_AllocTraceOne): Likewise. * posix-threads.cc (_Jv_ThreadRegister): Handle slow pthread_self(). (self_cache): New global. (_Jv_ThreadSelf_out_of_line): New function. * prims.cc (_Jv_AllocBytesChecked): Removed. (_Jv_ThrowNoMemory): New function. (_Jv_AllocObject): Don't check for null return from allocator. (_Jv_NewObjectArray): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_NewPrimArray): Allocate pointer-free object if possible. * include/javaprims.h (_Jv_AllocPtrFreeObject): Declare. (_Jv_MonitorEnter, _Jv_MonitorExit): Don't return value. * include/boehm-gc.h (_Jv_AllocObj): Define. (_Jv_AllocPtrFreeObj): Define. * include/jvm.h (_Jv_AllocPtrFreeObj): Declare. (_Jv_ThrowNoMemory): Declare. (_Jv_AllocTraceOne): Declare. (_Jv_AllocBytesChecked): Removed. * include/posix-threads.h (_Jv_MutexInit, _Jv_MutexLock, _Jv_MutexUnlock): Handle LOCK_DEBUG. (_Jv_ThreadSelf): Handle case where system pthread_self() is slow. * java/lang/Class.h (Class): Declare _Jv_AllocPtrFreeObj as friend. * java/lang/Object.h (sync_info): Conditional upon presence of hash synchronization. * java/lang/natObject.cc: Much new code to handle thin locks and hash synchronization. * java/lang/natString.cc (_Jv_AllocString): Allocate pointer-free object if possible. From-SVN: r42519
2001-05-24 07:40:37 +02:00
# ifndef JV_HASH_SYNCHRONIZATION
// Every object has a sync_info pointer.
p = (GC_PTR) array->sync_info;
MAYBE_MARK (p, mark_stack_ptr, mark_stack_limit, array);
[multiple changes] 2001-05-23 Tom Tromey <tromey@redhat.com> * posix-threads.cc (_Jv_self_cache): Renamed from self_cache. * gcj/Makefile.in: Rebuilt. * gcj/Makefile.am (gcj_HEADERS): Added libgcj-config.h. * gcj/javaprims.h: Include gcj/libgcj-config.h. * gcj/libgcj-config.h.in: New file. * libgcj.spec.in (*jc1): Added @HASH_SYNC_SPEC@. * configure: Rebuilt. * configure.in: Enable hash synchronization by default on some platforms. (HASH_SYNC_SPEC): New subst. (AC_CONFIG_HEADER): Added gcj/libgcj-config.h. Correctly use `test -z' instead of `test -n' in a couple places. (JV_HASH_SYNCHRONIZATION): Use AC_DEFINE; don't add to LIBGCJ_CXXFLAGS. * configure.host (enable_java_net_default): Initialize. (enable_hash_synchronization_default): New variable. 2001-05-23 Hans Boehm <Hans_Boehm@hp.com> * boehm.cc (_Jv_MarkObj): Don't mark sync_info when hash synchronization in use. (_Jv_MarkArray): Likewise. (_Jv_AllocBytes): Don't check return result. (handle_out_of_memory): New function. (_Jv_InitGC): Set GC_oom_fn. (trace_one_vtable): New global. (_Jv_AllocTraceOne): New function. * configure.in: Added --enable-hash-synchronization. * defineclass.cc, prims.cc, resolve.cc, java/lang/natString.cc, java/net/natInetAddress.cc: Remove _Jv_AllocBytesChecked. * nogc.cc (_Jv_AllocObj): Throw out-of-memory. (_Jv_AllocArray): Likewise. (_Jv_AllocBytes): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_AllocTraceOne): Likewise. * posix-threads.cc (_Jv_ThreadRegister): Handle slow pthread_self(). (self_cache): New global. (_Jv_ThreadSelf_out_of_line): New function. * prims.cc (_Jv_AllocBytesChecked): Removed. (_Jv_ThrowNoMemory): New function. (_Jv_AllocObject): Don't check for null return from allocator. (_Jv_NewObjectArray): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_NewPrimArray): Allocate pointer-free object if possible. * include/javaprims.h (_Jv_AllocPtrFreeObject): Declare. (_Jv_MonitorEnter, _Jv_MonitorExit): Don't return value. * include/boehm-gc.h (_Jv_AllocObj): Define. (_Jv_AllocPtrFreeObj): Define. * include/jvm.h (_Jv_AllocPtrFreeObj): Declare. (_Jv_ThrowNoMemory): Declare. (_Jv_AllocTraceOne): Declare. (_Jv_AllocBytesChecked): Removed. * include/posix-threads.h (_Jv_MutexInit, _Jv_MutexLock, _Jv_MutexUnlock): Handle LOCK_DEBUG. (_Jv_ThreadSelf): Handle case where system pthread_self() is slow. * java/lang/Class.h (Class): Declare _Jv_AllocPtrFreeObj as friend. * java/lang/Object.h (sync_info): Conditional upon presence of hash synchronization. * java/lang/natObject.cc: Much new code to handle thin locks and hash synchronization. * java/lang/natString.cc (_Jv_AllocString): Allocate pointer-free object if possible. From-SVN: r42519
2001-05-24 07:40:37 +02:00
# endif
1999-04-07 16:42:40 +02:00
for (int i = 0; i < JvGetArrayLength (array); ++i)
{
jobject obj = elements (array)[i];
p = (GC_PTR) obj;
MAYBE_MARK (p, mark_stack_ptr, mark_stack_limit, array);
1999-04-07 16:42:40 +02:00
}
return mark_stack_ptr;
}
// Generate a GC marking descriptor for a class.
//
Implement bitmap descriptor based marking for Boehm GC. 2000-09-30 Hans Boehm <boehm@acm.org> Bryce McKinlay <bryce@albatross.co.nz> Implement bitmap descriptor based marking for Boehm GC. * configure.in: Define JC1GCSPEC. Set it if boehm-gc is used. * configure: Rebuilt. * libgcj.spec.in: Pass JC1GCSPEC to jc1. * include/jvm.h (struct _Jv_VTable): New field `gc_descr'. New inline method get_finalizer(). (struct _Jv_ArrayVTable): Ditto. Declare method array with NUM_OBJECT_METHODS elements instead of NUM_OBJECT_METHODS + 1. (_Jv_AllocObj): Add new jclass parameter. (_Jv_AllocArray): Ditto. (_Jv_BuildGCDescr): New prototype. * prims.cc (_Jv_AllocObject): Rename parameter `c' to `klass'. Pass `klass' to _Jv_AllocObj. Don't set the new object's vtable. Use get_finalizer() instead of direct finalizer vtable offset. (_Jv_NewObjectArray): Rename parameter `clas' to `klass'. Pass `klass' to _Jv_AllocArray. Don't set the new array's vtable. (_Jv_NewPrimArray): Call _Jv_FindArrayClass before _Jv_AllocObj. Pass `klass' to _Jv_AllocObj. Don't set the new array's vtable. * resolve.cc (METHOD_NOT_THERE, METHOD_INACCESSIBLE): New #defines. (_Jv_ResolvePoolEntry): Use METHOD_NOT_THERE and METHOD_INACCESSIBLE. (_Jv_DetermineVTableIndex): Ditto. (_Jv_PrepareClass): Ditto. Remove offset-by-one adjustments from vtable calculations to account for new gc_descr field. * boehm.cc: #include gc_gcj.h. (obj_kind_x, obj_free_list): `#if 0'-ed away. (_Jv_MarkObj): Check that vtable doesn't point to a cleared object. New commentary from HB. Mark the classes vtable. (_Jv_MarkArray): Check that vtable doesn't point to a cleared object. (GC_DEFAULT_DESCR): New #define. (_Jv_BuildGCDescr): New function. Use GC_DEFAULT_DESCR, for now. (_Jv_AllocObj): New parameter `klass'. Use GC_GCJ_MALLOC (). (_Jv_AllocArray): New parameter `klass'. Allocate with GC_MALLOC and scan conservativly if size is less than min_heap_addr. Set vtable pointer of new object before returning. (_Jv_AllocBytes): Use GC_MALLOC_ATOMIC, not GC_GENERIC_MALLOC. (_Jv_InitGC): Call GC_init_gcj_malloc(). Don't set up marking and allocation for obj_kind_x. * nogc.cc (_Jv_BuildGCDescr): New function. Return 0. (_Jv_AllocObj): Set vtable on returned object. (_Jv_AllocArray): Ditto. * java/lang/Class.h (_Jv_NewObjectArray): No longer a friend. (_Jv_NewPrimArray): Ditto. (_Jv_AllocObj): Declare as a friend. (_Jv_AllocArray): Ditto. * java/lang/natClassLoader.cc (_Jv_FindArrayClass): Copy gc_descr from &ObjectClass into new array class. Remove offset-by-one adjustments from `method' size calculations to account for gc_descr field. Co-Authored-By: Bryce McKinlay <bryce@albatross.co.nz> From-SVN: r36679
2000-09-30 11:56:58 +02:00
// We assume that the gcj mark proc has index 0. This is a dubious assumption,
// since another one could be registered first. But the compiler also
// knows this, so in that case everything else will break, too.
#define GCJ_DEFAULT_DESCR GC_MAKE_PROC(GC_GCJ_RESERVED_MARK_PROC_INDEX,0)
Implement bitmap descriptor based marking for Boehm GC. 2000-09-30 Hans Boehm <boehm@acm.org> Bryce McKinlay <bryce@albatross.co.nz> Implement bitmap descriptor based marking for Boehm GC. * configure.in: Define JC1GCSPEC. Set it if boehm-gc is used. * configure: Rebuilt. * libgcj.spec.in: Pass JC1GCSPEC to jc1. * include/jvm.h (struct _Jv_VTable): New field `gc_descr'. New inline method get_finalizer(). (struct _Jv_ArrayVTable): Ditto. Declare method array with NUM_OBJECT_METHODS elements instead of NUM_OBJECT_METHODS + 1. (_Jv_AllocObj): Add new jclass parameter. (_Jv_AllocArray): Ditto. (_Jv_BuildGCDescr): New prototype. * prims.cc (_Jv_AllocObject): Rename parameter `c' to `klass'. Pass `klass' to _Jv_AllocObj. Don't set the new object's vtable. Use get_finalizer() instead of direct finalizer vtable offset. (_Jv_NewObjectArray): Rename parameter `clas' to `klass'. Pass `klass' to _Jv_AllocArray. Don't set the new array's vtable. (_Jv_NewPrimArray): Call _Jv_FindArrayClass before _Jv_AllocObj. Pass `klass' to _Jv_AllocObj. Don't set the new array's vtable. * resolve.cc (METHOD_NOT_THERE, METHOD_INACCESSIBLE): New #defines. (_Jv_ResolvePoolEntry): Use METHOD_NOT_THERE and METHOD_INACCESSIBLE. (_Jv_DetermineVTableIndex): Ditto. (_Jv_PrepareClass): Ditto. Remove offset-by-one adjustments from vtable calculations to account for new gc_descr field. * boehm.cc: #include gc_gcj.h. (obj_kind_x, obj_free_list): `#if 0'-ed away. (_Jv_MarkObj): Check that vtable doesn't point to a cleared object. New commentary from HB. Mark the classes vtable. (_Jv_MarkArray): Check that vtable doesn't point to a cleared object. (GC_DEFAULT_DESCR): New #define. (_Jv_BuildGCDescr): New function. Use GC_DEFAULT_DESCR, for now. (_Jv_AllocObj): New parameter `klass'. Use GC_GCJ_MALLOC (). (_Jv_AllocArray): New parameter `klass'. Allocate with GC_MALLOC and scan conservativly if size is less than min_heap_addr. Set vtable pointer of new object before returning. (_Jv_AllocBytes): Use GC_MALLOC_ATOMIC, not GC_GENERIC_MALLOC. (_Jv_InitGC): Call GC_init_gcj_malloc(). Don't set up marking and allocation for obj_kind_x. * nogc.cc (_Jv_BuildGCDescr): New function. Return 0. (_Jv_AllocObj): Set vtable on returned object. (_Jv_AllocArray): Ditto. * java/lang/Class.h (_Jv_NewObjectArray): No longer a friend. (_Jv_NewPrimArray): Ditto. (_Jv_AllocObj): Declare as a friend. (_Jv_AllocArray): Ditto. * java/lang/natClassLoader.cc (_Jv_FindArrayClass): Copy gc_descr from &ObjectClass into new array class. Remove offset-by-one adjustments from `method' size calculations to account for gc_descr field. Co-Authored-By: Bryce McKinlay <bryce@albatross.co.nz> From-SVN: r36679
2000-09-30 11:56:58 +02:00
void *
_Jv_BuildGCDescr(jclass self)
Implement bitmap descriptor based marking for Boehm GC. 2000-09-30 Hans Boehm <boehm@acm.org> Bryce McKinlay <bryce@albatross.co.nz> Implement bitmap descriptor based marking for Boehm GC. * configure.in: Define JC1GCSPEC. Set it if boehm-gc is used. * configure: Rebuilt. * libgcj.spec.in: Pass JC1GCSPEC to jc1. * include/jvm.h (struct _Jv_VTable): New field `gc_descr'. New inline method get_finalizer(). (struct _Jv_ArrayVTable): Ditto. Declare method array with NUM_OBJECT_METHODS elements instead of NUM_OBJECT_METHODS + 1. (_Jv_AllocObj): Add new jclass parameter. (_Jv_AllocArray): Ditto. (_Jv_BuildGCDescr): New prototype. * prims.cc (_Jv_AllocObject): Rename parameter `c' to `klass'. Pass `klass' to _Jv_AllocObj. Don't set the new object's vtable. Use get_finalizer() instead of direct finalizer vtable offset. (_Jv_NewObjectArray): Rename parameter `clas' to `klass'. Pass `klass' to _Jv_AllocArray. Don't set the new array's vtable. (_Jv_NewPrimArray): Call _Jv_FindArrayClass before _Jv_AllocObj. Pass `klass' to _Jv_AllocObj. Don't set the new array's vtable. * resolve.cc (METHOD_NOT_THERE, METHOD_INACCESSIBLE): New #defines. (_Jv_ResolvePoolEntry): Use METHOD_NOT_THERE and METHOD_INACCESSIBLE. (_Jv_DetermineVTableIndex): Ditto. (_Jv_PrepareClass): Ditto. Remove offset-by-one adjustments from vtable calculations to account for new gc_descr field. * boehm.cc: #include gc_gcj.h. (obj_kind_x, obj_free_list): `#if 0'-ed away. (_Jv_MarkObj): Check that vtable doesn't point to a cleared object. New commentary from HB. Mark the classes vtable. (_Jv_MarkArray): Check that vtable doesn't point to a cleared object. (GC_DEFAULT_DESCR): New #define. (_Jv_BuildGCDescr): New function. Use GC_DEFAULT_DESCR, for now. (_Jv_AllocObj): New parameter `klass'. Use GC_GCJ_MALLOC (). (_Jv_AllocArray): New parameter `klass'. Allocate with GC_MALLOC and scan conservativly if size is less than min_heap_addr. Set vtable pointer of new object before returning. (_Jv_AllocBytes): Use GC_MALLOC_ATOMIC, not GC_GENERIC_MALLOC. (_Jv_InitGC): Call GC_init_gcj_malloc(). Don't set up marking and allocation for obj_kind_x. * nogc.cc (_Jv_BuildGCDescr): New function. Return 0. (_Jv_AllocObj): Set vtable on returned object. (_Jv_AllocArray): Ditto. * java/lang/Class.h (_Jv_NewObjectArray): No longer a friend. (_Jv_NewPrimArray): Ditto. (_Jv_AllocObj): Declare as a friend. (_Jv_AllocArray): Ditto. * java/lang/natClassLoader.cc (_Jv_FindArrayClass): Copy gc_descr from &ObjectClass into new array class. Remove offset-by-one adjustments from `method' size calculations to account for gc_descr field. Co-Authored-By: Bryce McKinlay <bryce@albatross.co.nz> From-SVN: r36679
2000-09-30 11:56:58 +02:00
{
jlong desc = 0;
jint bits_per_word = CHAR_BIT * sizeof (void *);
// Note: for now we only consider a bitmap mark descriptor. We
// could also handle the case where the first N fields of a type are
// references. However, this is not very likely to be used by many
// classes, and it is easier to compute things this way.
// The vtable pointer.
desc |= 1ULL << (bits_per_word - 1);
#ifndef JV_HASH_SYNCHRONIZATION
// The sync_info field.
desc |= 1ULL << (bits_per_word - 2);
#endif
for (jclass klass = self; klass != NULL; klass = klass->getSuperclass())
{
jfieldID field = JvGetFirstInstanceField(klass);
int count = JvNumInstanceFields(klass);
for (int i = 0; i < count; ++i)
{
if (field->isRef())
{
unsigned int off = field->getOffset();
// If we run into a weird situation, we bail.
if (off % sizeof (void *) != 0)
return (void *) (GCJ_DEFAULT_DESCR);
off /= sizeof (void *);
// If we find a field outside the range of our bitmap,
// fall back to procedure marker. The bottom 2 bits are
// reserved.
if (off >= (unsigned) bits_per_word - 2)
return (void *) (GCJ_DEFAULT_DESCR);
desc |= 1ULL << (bits_per_word - off - 1);
}
field = field->getNextField();
}
}
// For bitmap mark type, bottom bits are 01.
desc |= 1;
// Bogus warning avoidance (on many platforms).
return (void *) (unsigned long) desc;
Implement bitmap descriptor based marking for Boehm GC. 2000-09-30 Hans Boehm <boehm@acm.org> Bryce McKinlay <bryce@albatross.co.nz> Implement bitmap descriptor based marking for Boehm GC. * configure.in: Define JC1GCSPEC. Set it if boehm-gc is used. * configure: Rebuilt. * libgcj.spec.in: Pass JC1GCSPEC to jc1. * include/jvm.h (struct _Jv_VTable): New field `gc_descr'. New inline method get_finalizer(). (struct _Jv_ArrayVTable): Ditto. Declare method array with NUM_OBJECT_METHODS elements instead of NUM_OBJECT_METHODS + 1. (_Jv_AllocObj): Add new jclass parameter. (_Jv_AllocArray): Ditto. (_Jv_BuildGCDescr): New prototype. * prims.cc (_Jv_AllocObject): Rename parameter `c' to `klass'. Pass `klass' to _Jv_AllocObj. Don't set the new object's vtable. Use get_finalizer() instead of direct finalizer vtable offset. (_Jv_NewObjectArray): Rename parameter `clas' to `klass'. Pass `klass' to _Jv_AllocArray. Don't set the new array's vtable. (_Jv_NewPrimArray): Call _Jv_FindArrayClass before _Jv_AllocObj. Pass `klass' to _Jv_AllocObj. Don't set the new array's vtable. * resolve.cc (METHOD_NOT_THERE, METHOD_INACCESSIBLE): New #defines. (_Jv_ResolvePoolEntry): Use METHOD_NOT_THERE and METHOD_INACCESSIBLE. (_Jv_DetermineVTableIndex): Ditto. (_Jv_PrepareClass): Ditto. Remove offset-by-one adjustments from vtable calculations to account for new gc_descr field. * boehm.cc: #include gc_gcj.h. (obj_kind_x, obj_free_list): `#if 0'-ed away. (_Jv_MarkObj): Check that vtable doesn't point to a cleared object. New commentary from HB. Mark the classes vtable. (_Jv_MarkArray): Check that vtable doesn't point to a cleared object. (GC_DEFAULT_DESCR): New #define. (_Jv_BuildGCDescr): New function. Use GC_DEFAULT_DESCR, for now. (_Jv_AllocObj): New parameter `klass'. Use GC_GCJ_MALLOC (). (_Jv_AllocArray): New parameter `klass'. Allocate with GC_MALLOC and scan conservativly if size is less than min_heap_addr. Set vtable pointer of new object before returning. (_Jv_AllocBytes): Use GC_MALLOC_ATOMIC, not GC_GENERIC_MALLOC. (_Jv_InitGC): Call GC_init_gcj_malloc(). Don't set up marking and allocation for obj_kind_x. * nogc.cc (_Jv_BuildGCDescr): New function. Return 0. (_Jv_AllocObj): Set vtable on returned object. (_Jv_AllocArray): Ditto. * java/lang/Class.h (_Jv_NewObjectArray): No longer a friend. (_Jv_NewPrimArray): Ditto. (_Jv_AllocObj): Declare as a friend. (_Jv_AllocArray): Ditto. * java/lang/natClassLoader.cc (_Jv_FindArrayClass): Copy gc_descr from &ObjectClass into new array class. Remove offset-by-one adjustments from `method' size calculations to account for gc_descr field. Co-Authored-By: Bryce McKinlay <bryce@albatross.co.nz> From-SVN: r36679
2000-09-30 11:56:58 +02:00
}
[multiple changes] 2001-05-23 Tom Tromey <tromey@redhat.com> * posix-threads.cc (_Jv_self_cache): Renamed from self_cache. * gcj/Makefile.in: Rebuilt. * gcj/Makefile.am (gcj_HEADERS): Added libgcj-config.h. * gcj/javaprims.h: Include gcj/libgcj-config.h. * gcj/libgcj-config.h.in: New file. * libgcj.spec.in (*jc1): Added @HASH_SYNC_SPEC@. * configure: Rebuilt. * configure.in: Enable hash synchronization by default on some platforms. (HASH_SYNC_SPEC): New subst. (AC_CONFIG_HEADER): Added gcj/libgcj-config.h. Correctly use `test -z' instead of `test -n' in a couple places. (JV_HASH_SYNCHRONIZATION): Use AC_DEFINE; don't add to LIBGCJ_CXXFLAGS. * configure.host (enable_java_net_default): Initialize. (enable_hash_synchronization_default): New variable. 2001-05-23 Hans Boehm <Hans_Boehm@hp.com> * boehm.cc (_Jv_MarkObj): Don't mark sync_info when hash synchronization in use. (_Jv_MarkArray): Likewise. (_Jv_AllocBytes): Don't check return result. (handle_out_of_memory): New function. (_Jv_InitGC): Set GC_oom_fn. (trace_one_vtable): New global. (_Jv_AllocTraceOne): New function. * configure.in: Added --enable-hash-synchronization. * defineclass.cc, prims.cc, resolve.cc, java/lang/natString.cc, java/net/natInetAddress.cc: Remove _Jv_AllocBytesChecked. * nogc.cc (_Jv_AllocObj): Throw out-of-memory. (_Jv_AllocArray): Likewise. (_Jv_AllocBytes): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_AllocTraceOne): Likewise. * posix-threads.cc (_Jv_ThreadRegister): Handle slow pthread_self(). (self_cache): New global. (_Jv_ThreadSelf_out_of_line): New function. * prims.cc (_Jv_AllocBytesChecked): Removed. (_Jv_ThrowNoMemory): New function. (_Jv_AllocObject): Don't check for null return from allocator. (_Jv_NewObjectArray): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_NewPrimArray): Allocate pointer-free object if possible. * include/javaprims.h (_Jv_AllocPtrFreeObject): Declare. (_Jv_MonitorEnter, _Jv_MonitorExit): Don't return value. * include/boehm-gc.h (_Jv_AllocObj): Define. (_Jv_AllocPtrFreeObj): Define. * include/jvm.h (_Jv_AllocPtrFreeObj): Declare. (_Jv_ThrowNoMemory): Declare. (_Jv_AllocTraceOne): Declare. (_Jv_AllocBytesChecked): Removed. * include/posix-threads.h (_Jv_MutexInit, _Jv_MutexLock, _Jv_MutexUnlock): Handle LOCK_DEBUG. (_Jv_ThreadSelf): Handle case where system pthread_self() is slow. * java/lang/Class.h (Class): Declare _Jv_AllocPtrFreeObj as friend. * java/lang/Object.h (sync_info): Conditional upon presence of hash synchronization. * java/lang/natObject.cc: Much new code to handle thin locks and hash synchronization. * java/lang/natString.cc (_Jv_AllocString): Allocate pointer-free object if possible. From-SVN: r42519
2001-05-24 07:40:37 +02:00
// Allocate some space that is known to be pointer-free.
1999-04-07 16:42:40 +02:00
void *
[multiple changes] 2001-05-23 Tom Tromey <tromey@redhat.com> * posix-threads.cc (_Jv_self_cache): Renamed from self_cache. * gcj/Makefile.in: Rebuilt. * gcj/Makefile.am (gcj_HEADERS): Added libgcj-config.h. * gcj/javaprims.h: Include gcj/libgcj-config.h. * gcj/libgcj-config.h.in: New file. * libgcj.spec.in (*jc1): Added @HASH_SYNC_SPEC@. * configure: Rebuilt. * configure.in: Enable hash synchronization by default on some platforms. (HASH_SYNC_SPEC): New subst. (AC_CONFIG_HEADER): Added gcj/libgcj-config.h. Correctly use `test -z' instead of `test -n' in a couple places. (JV_HASH_SYNCHRONIZATION): Use AC_DEFINE; don't add to LIBGCJ_CXXFLAGS. * configure.host (enable_java_net_default): Initialize. (enable_hash_synchronization_default): New variable. 2001-05-23 Hans Boehm <Hans_Boehm@hp.com> * boehm.cc (_Jv_MarkObj): Don't mark sync_info when hash synchronization in use. (_Jv_MarkArray): Likewise. (_Jv_AllocBytes): Don't check return result. (handle_out_of_memory): New function. (_Jv_InitGC): Set GC_oom_fn. (trace_one_vtable): New global. (_Jv_AllocTraceOne): New function. * configure.in: Added --enable-hash-synchronization. * defineclass.cc, prims.cc, resolve.cc, java/lang/natString.cc, java/net/natInetAddress.cc: Remove _Jv_AllocBytesChecked. * nogc.cc (_Jv_AllocObj): Throw out-of-memory. (_Jv_AllocArray): Likewise. (_Jv_AllocBytes): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_AllocTraceOne): Likewise. * posix-threads.cc (_Jv_ThreadRegister): Handle slow pthread_self(). (self_cache): New global. (_Jv_ThreadSelf_out_of_line): New function. * prims.cc (_Jv_AllocBytesChecked): Removed. (_Jv_ThrowNoMemory): New function. (_Jv_AllocObject): Don't check for null return from allocator. (_Jv_NewObjectArray): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_NewPrimArray): Allocate pointer-free object if possible. * include/javaprims.h (_Jv_AllocPtrFreeObject): Declare. (_Jv_MonitorEnter, _Jv_MonitorExit): Don't return value. * include/boehm-gc.h (_Jv_AllocObj): Define. (_Jv_AllocPtrFreeObj): Define. * include/jvm.h (_Jv_AllocPtrFreeObj): Declare. (_Jv_ThrowNoMemory): Declare. (_Jv_AllocTraceOne): Declare. (_Jv_AllocBytesChecked): Removed. * include/posix-threads.h (_Jv_MutexInit, _Jv_MutexLock, _Jv_MutexUnlock): Handle LOCK_DEBUG. (_Jv_ThreadSelf): Handle case where system pthread_self() is slow. * java/lang/Class.h (Class): Declare _Jv_AllocPtrFreeObj as friend. * java/lang/Object.h (sync_info): Conditional upon presence of hash synchronization. * java/lang/natObject.cc: Much new code to handle thin locks and hash synchronization. * java/lang/natString.cc (_Jv_AllocString): Allocate pointer-free object if possible. From-SVN: r42519
2001-05-24 07:40:37 +02:00
_Jv_AllocBytes (jsize size)
1999-04-07 16:42:40 +02:00
{
[multiple changes] 2001-05-23 Tom Tromey <tromey@redhat.com> * posix-threads.cc (_Jv_self_cache): Renamed from self_cache. * gcj/Makefile.in: Rebuilt. * gcj/Makefile.am (gcj_HEADERS): Added libgcj-config.h. * gcj/javaprims.h: Include gcj/libgcj-config.h. * gcj/libgcj-config.h.in: New file. * libgcj.spec.in (*jc1): Added @HASH_SYNC_SPEC@. * configure: Rebuilt. * configure.in: Enable hash synchronization by default on some platforms. (HASH_SYNC_SPEC): New subst. (AC_CONFIG_HEADER): Added gcj/libgcj-config.h. Correctly use `test -z' instead of `test -n' in a couple places. (JV_HASH_SYNCHRONIZATION): Use AC_DEFINE; don't add to LIBGCJ_CXXFLAGS. * configure.host (enable_java_net_default): Initialize. (enable_hash_synchronization_default): New variable. 2001-05-23 Hans Boehm <Hans_Boehm@hp.com> * boehm.cc (_Jv_MarkObj): Don't mark sync_info when hash synchronization in use. (_Jv_MarkArray): Likewise. (_Jv_AllocBytes): Don't check return result. (handle_out_of_memory): New function. (_Jv_InitGC): Set GC_oom_fn. (trace_one_vtable): New global. (_Jv_AllocTraceOne): New function. * configure.in: Added --enable-hash-synchronization. * defineclass.cc, prims.cc, resolve.cc, java/lang/natString.cc, java/net/natInetAddress.cc: Remove _Jv_AllocBytesChecked. * nogc.cc (_Jv_AllocObj): Throw out-of-memory. (_Jv_AllocArray): Likewise. (_Jv_AllocBytes): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_AllocTraceOne): Likewise. * posix-threads.cc (_Jv_ThreadRegister): Handle slow pthread_self(). (self_cache): New global. (_Jv_ThreadSelf_out_of_line): New function. * prims.cc (_Jv_AllocBytesChecked): Removed. (_Jv_ThrowNoMemory): New function. (_Jv_AllocObject): Don't check for null return from allocator. (_Jv_NewObjectArray): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_NewPrimArray): Allocate pointer-free object if possible. * include/javaprims.h (_Jv_AllocPtrFreeObject): Declare. (_Jv_MonitorEnter, _Jv_MonitorExit): Don't return value. * include/boehm-gc.h (_Jv_AllocObj): Define. (_Jv_AllocPtrFreeObj): Define. * include/jvm.h (_Jv_AllocPtrFreeObj): Declare. (_Jv_ThrowNoMemory): Declare. (_Jv_AllocTraceOne): Declare. (_Jv_AllocBytesChecked): Removed. * include/posix-threads.h (_Jv_MutexInit, _Jv_MutexLock, _Jv_MutexUnlock): Handle LOCK_DEBUG. (_Jv_ThreadSelf): Handle case where system pthread_self() is slow. * java/lang/Class.h (Class): Declare _Jv_AllocPtrFreeObj as friend. * java/lang/Object.h (sync_info): Conditional upon presence of hash synchronization. * java/lang/natObject.cc: Much new code to handle thin locks and hash synchronization. * java/lang/natString.cc (_Jv_AllocString): Allocate pointer-free object if possible. From-SVN: r42519
2001-05-24 07:40:37 +02:00
void *r = GC_MALLOC_ATOMIC (size);
// We have to explicitly zero memory here, as the GC doesn't
// guarantee that PTRFREE allocations are zeroed. Note that we
// don't have to do this for other allocation types because we set
// the `ok_init' flag in the type descriptor.
memset (r, 0, size);
return r;
1999-04-07 16:42:40 +02:00
}
#ifdef LIBGCJ_GC_DEBUG
void *
_Jv_AllocObj (jsize size, jclass klass)
{
return GC_GCJ_MALLOC (size, klass->vtable);
}
void *
_Jv_AllocPtrFreeObj (jsize size, jclass klass)
{
#ifdef JV_HASH_SYNCHRONIZATION
void * obj = GC_MALLOC_ATOMIC(size);
*((_Jv_VTable **) obj) = klass->vtable;
#else
void * obj = GC_GCJ_MALLOC(size, klass->vtable);
#endif
return obj;
}
#endif /* LIBGCJ_GC_DEBUG */
// In the non-debug case, the above two functions are defined
// as inline functions in boehm-gc.h. In the debug case we
// really want to take advantage of the definitions in gc_gcj.h.
Implement bitmap descriptor based marking for Boehm GC. 2000-09-30 Hans Boehm <boehm@acm.org> Bryce McKinlay <bryce@albatross.co.nz> Implement bitmap descriptor based marking for Boehm GC. * configure.in: Define JC1GCSPEC. Set it if boehm-gc is used. * configure: Rebuilt. * libgcj.spec.in: Pass JC1GCSPEC to jc1. * include/jvm.h (struct _Jv_VTable): New field `gc_descr'. New inline method get_finalizer(). (struct _Jv_ArrayVTable): Ditto. Declare method array with NUM_OBJECT_METHODS elements instead of NUM_OBJECT_METHODS + 1. (_Jv_AllocObj): Add new jclass parameter. (_Jv_AllocArray): Ditto. (_Jv_BuildGCDescr): New prototype. * prims.cc (_Jv_AllocObject): Rename parameter `c' to `klass'. Pass `klass' to _Jv_AllocObj. Don't set the new object's vtable. Use get_finalizer() instead of direct finalizer vtable offset. (_Jv_NewObjectArray): Rename parameter `clas' to `klass'. Pass `klass' to _Jv_AllocArray. Don't set the new array's vtable. (_Jv_NewPrimArray): Call _Jv_FindArrayClass before _Jv_AllocObj. Pass `klass' to _Jv_AllocObj. Don't set the new array's vtable. * resolve.cc (METHOD_NOT_THERE, METHOD_INACCESSIBLE): New #defines. (_Jv_ResolvePoolEntry): Use METHOD_NOT_THERE and METHOD_INACCESSIBLE. (_Jv_DetermineVTableIndex): Ditto. (_Jv_PrepareClass): Ditto. Remove offset-by-one adjustments from vtable calculations to account for new gc_descr field. * boehm.cc: #include gc_gcj.h. (obj_kind_x, obj_free_list): `#if 0'-ed away. (_Jv_MarkObj): Check that vtable doesn't point to a cleared object. New commentary from HB. Mark the classes vtable. (_Jv_MarkArray): Check that vtable doesn't point to a cleared object. (GC_DEFAULT_DESCR): New #define. (_Jv_BuildGCDescr): New function. Use GC_DEFAULT_DESCR, for now. (_Jv_AllocObj): New parameter `klass'. Use GC_GCJ_MALLOC (). (_Jv_AllocArray): New parameter `klass'. Allocate with GC_MALLOC and scan conservativly if size is less than min_heap_addr. Set vtable pointer of new object before returning. (_Jv_AllocBytes): Use GC_MALLOC_ATOMIC, not GC_GENERIC_MALLOC. (_Jv_InitGC): Call GC_init_gcj_malloc(). Don't set up marking and allocation for obj_kind_x. * nogc.cc (_Jv_BuildGCDescr): New function. Return 0. (_Jv_AllocObj): Set vtable on returned object. (_Jv_AllocArray): Ditto. * java/lang/Class.h (_Jv_NewObjectArray): No longer a friend. (_Jv_NewPrimArray): Ditto. (_Jv_AllocObj): Declare as a friend. (_Jv_AllocArray): Ditto. * java/lang/natClassLoader.cc (_Jv_FindArrayClass): Copy gc_descr from &ObjectClass into new array class. Remove offset-by-one adjustments from `method' size calculations to account for gc_descr field. Co-Authored-By: Bryce McKinlay <bryce@albatross.co.nz> From-SVN: r36679
2000-09-30 11:56:58 +02:00
// Allocate space for a new Java array.
// Used only for arrays of objects.
1999-04-07 16:42:40 +02:00
void *
Implement bitmap descriptor based marking for Boehm GC. 2000-09-30 Hans Boehm <boehm@acm.org> Bryce McKinlay <bryce@albatross.co.nz> Implement bitmap descriptor based marking for Boehm GC. * configure.in: Define JC1GCSPEC. Set it if boehm-gc is used. * configure: Rebuilt. * libgcj.spec.in: Pass JC1GCSPEC to jc1. * include/jvm.h (struct _Jv_VTable): New field `gc_descr'. New inline method get_finalizer(). (struct _Jv_ArrayVTable): Ditto. Declare method array with NUM_OBJECT_METHODS elements instead of NUM_OBJECT_METHODS + 1. (_Jv_AllocObj): Add new jclass parameter. (_Jv_AllocArray): Ditto. (_Jv_BuildGCDescr): New prototype. * prims.cc (_Jv_AllocObject): Rename parameter `c' to `klass'. Pass `klass' to _Jv_AllocObj. Don't set the new object's vtable. Use get_finalizer() instead of direct finalizer vtable offset. (_Jv_NewObjectArray): Rename parameter `clas' to `klass'. Pass `klass' to _Jv_AllocArray. Don't set the new array's vtable. (_Jv_NewPrimArray): Call _Jv_FindArrayClass before _Jv_AllocObj. Pass `klass' to _Jv_AllocObj. Don't set the new array's vtable. * resolve.cc (METHOD_NOT_THERE, METHOD_INACCESSIBLE): New #defines. (_Jv_ResolvePoolEntry): Use METHOD_NOT_THERE and METHOD_INACCESSIBLE. (_Jv_DetermineVTableIndex): Ditto. (_Jv_PrepareClass): Ditto. Remove offset-by-one adjustments from vtable calculations to account for new gc_descr field. * boehm.cc: #include gc_gcj.h. (obj_kind_x, obj_free_list): `#if 0'-ed away. (_Jv_MarkObj): Check that vtable doesn't point to a cleared object. New commentary from HB. Mark the classes vtable. (_Jv_MarkArray): Check that vtable doesn't point to a cleared object. (GC_DEFAULT_DESCR): New #define. (_Jv_BuildGCDescr): New function. Use GC_DEFAULT_DESCR, for now. (_Jv_AllocObj): New parameter `klass'. Use GC_GCJ_MALLOC (). (_Jv_AllocArray): New parameter `klass'. Allocate with GC_MALLOC and scan conservativly if size is less than min_heap_addr. Set vtable pointer of new object before returning. (_Jv_AllocBytes): Use GC_MALLOC_ATOMIC, not GC_GENERIC_MALLOC. (_Jv_InitGC): Call GC_init_gcj_malloc(). Don't set up marking and allocation for obj_kind_x. * nogc.cc (_Jv_BuildGCDescr): New function. Return 0. (_Jv_AllocObj): Set vtable on returned object. (_Jv_AllocArray): Ditto. * java/lang/Class.h (_Jv_NewObjectArray): No longer a friend. (_Jv_NewPrimArray): Ditto. (_Jv_AllocObj): Declare as a friend. (_Jv_AllocArray): Ditto. * java/lang/natClassLoader.cc (_Jv_FindArrayClass): Copy gc_descr from &ObjectClass into new array class. Remove offset-by-one adjustments from `method' size calculations to account for gc_descr field. Co-Authored-By: Bryce McKinlay <bryce@albatross.co.nz> From-SVN: r36679
2000-09-30 11:56:58 +02:00
_Jv_AllocArray (jsize size, jclass klass)
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{
Implement bitmap descriptor based marking for Boehm GC. 2000-09-30 Hans Boehm <boehm@acm.org> Bryce McKinlay <bryce@albatross.co.nz> Implement bitmap descriptor based marking for Boehm GC. * configure.in: Define JC1GCSPEC. Set it if boehm-gc is used. * configure: Rebuilt. * libgcj.spec.in: Pass JC1GCSPEC to jc1. * include/jvm.h (struct _Jv_VTable): New field `gc_descr'. New inline method get_finalizer(). (struct _Jv_ArrayVTable): Ditto. Declare method array with NUM_OBJECT_METHODS elements instead of NUM_OBJECT_METHODS + 1. (_Jv_AllocObj): Add new jclass parameter. (_Jv_AllocArray): Ditto. (_Jv_BuildGCDescr): New prototype. * prims.cc (_Jv_AllocObject): Rename parameter `c' to `klass'. Pass `klass' to _Jv_AllocObj. Don't set the new object's vtable. Use get_finalizer() instead of direct finalizer vtable offset. (_Jv_NewObjectArray): Rename parameter `clas' to `klass'. Pass `klass' to _Jv_AllocArray. Don't set the new array's vtable. (_Jv_NewPrimArray): Call _Jv_FindArrayClass before _Jv_AllocObj. Pass `klass' to _Jv_AllocObj. Don't set the new array's vtable. * resolve.cc (METHOD_NOT_THERE, METHOD_INACCESSIBLE): New #defines. (_Jv_ResolvePoolEntry): Use METHOD_NOT_THERE and METHOD_INACCESSIBLE. (_Jv_DetermineVTableIndex): Ditto. (_Jv_PrepareClass): Ditto. Remove offset-by-one adjustments from vtable calculations to account for new gc_descr field. * boehm.cc: #include gc_gcj.h. (obj_kind_x, obj_free_list): `#if 0'-ed away. (_Jv_MarkObj): Check that vtable doesn't point to a cleared object. New commentary from HB. Mark the classes vtable. (_Jv_MarkArray): Check that vtable doesn't point to a cleared object. (GC_DEFAULT_DESCR): New #define. (_Jv_BuildGCDescr): New function. Use GC_DEFAULT_DESCR, for now. (_Jv_AllocObj): New parameter `klass'. Use GC_GCJ_MALLOC (). (_Jv_AllocArray): New parameter `klass'. Allocate with GC_MALLOC and scan conservativly if size is less than min_heap_addr. Set vtable pointer of new object before returning. (_Jv_AllocBytes): Use GC_MALLOC_ATOMIC, not GC_GENERIC_MALLOC. (_Jv_InitGC): Call GC_init_gcj_malloc(). Don't set up marking and allocation for obj_kind_x. * nogc.cc (_Jv_BuildGCDescr): New function. Return 0. (_Jv_AllocObj): Set vtable on returned object. (_Jv_AllocArray): Ditto. * java/lang/Class.h (_Jv_NewObjectArray): No longer a friend. (_Jv_NewPrimArray): Ditto. (_Jv_AllocObj): Declare as a friend. (_Jv_AllocArray): Ditto. * java/lang/natClassLoader.cc (_Jv_FindArrayClass): Copy gc_descr from &ObjectClass into new array class. Remove offset-by-one adjustments from `method' size calculations to account for gc_descr field. Co-Authored-By: Bryce McKinlay <bryce@albatross.co.nz> From-SVN: r36679
2000-09-30 11:56:58 +02:00
void *obj;
#ifdef LIBGCJ_GC_DEBUG
// There isn't much to lose by scanning this conservatively.
// If we didn't, the mark proc would have to understand that
// it needed to skip the header.
obj = GC_MALLOC(size);
#else
Implement bitmap descriptor based marking for Boehm GC. 2000-09-30 Hans Boehm <boehm@acm.org> Bryce McKinlay <bryce@albatross.co.nz> Implement bitmap descriptor based marking for Boehm GC. * configure.in: Define JC1GCSPEC. Set it if boehm-gc is used. * configure: Rebuilt. * libgcj.spec.in: Pass JC1GCSPEC to jc1. * include/jvm.h (struct _Jv_VTable): New field `gc_descr'. New inline method get_finalizer(). (struct _Jv_ArrayVTable): Ditto. Declare method array with NUM_OBJECT_METHODS elements instead of NUM_OBJECT_METHODS + 1. (_Jv_AllocObj): Add new jclass parameter. (_Jv_AllocArray): Ditto. (_Jv_BuildGCDescr): New prototype. * prims.cc (_Jv_AllocObject): Rename parameter `c' to `klass'. Pass `klass' to _Jv_AllocObj. Don't set the new object's vtable. Use get_finalizer() instead of direct finalizer vtable offset. (_Jv_NewObjectArray): Rename parameter `clas' to `klass'. Pass `klass' to _Jv_AllocArray. Don't set the new array's vtable. (_Jv_NewPrimArray): Call _Jv_FindArrayClass before _Jv_AllocObj. Pass `klass' to _Jv_AllocObj. Don't set the new array's vtable. * resolve.cc (METHOD_NOT_THERE, METHOD_INACCESSIBLE): New #defines. (_Jv_ResolvePoolEntry): Use METHOD_NOT_THERE and METHOD_INACCESSIBLE. (_Jv_DetermineVTableIndex): Ditto. (_Jv_PrepareClass): Ditto. Remove offset-by-one adjustments from vtable calculations to account for new gc_descr field. * boehm.cc: #include gc_gcj.h. (obj_kind_x, obj_free_list): `#if 0'-ed away. (_Jv_MarkObj): Check that vtable doesn't point to a cleared object. New commentary from HB. Mark the classes vtable. (_Jv_MarkArray): Check that vtable doesn't point to a cleared object. (GC_DEFAULT_DESCR): New #define. (_Jv_BuildGCDescr): New function. Use GC_DEFAULT_DESCR, for now. (_Jv_AllocObj): New parameter `klass'. Use GC_GCJ_MALLOC (). (_Jv_AllocArray): New parameter `klass'. Allocate with GC_MALLOC and scan conservativly if size is less than min_heap_addr. Set vtable pointer of new object before returning. (_Jv_AllocBytes): Use GC_MALLOC_ATOMIC, not GC_GENERIC_MALLOC. (_Jv_InitGC): Call GC_init_gcj_malloc(). Don't set up marking and allocation for obj_kind_x. * nogc.cc (_Jv_BuildGCDescr): New function. Return 0. (_Jv_AllocObj): Set vtable on returned object. (_Jv_AllocArray): Ditto. * java/lang/Class.h (_Jv_NewObjectArray): No longer a friend. (_Jv_NewPrimArray): Ditto. (_Jv_AllocObj): Declare as a friend. (_Jv_AllocArray): Ditto. * java/lang/natClassLoader.cc (_Jv_FindArrayClass): Copy gc_descr from &ObjectClass into new array class. Remove offset-by-one adjustments from `method' size calculations to account for gc_descr field. Co-Authored-By: Bryce McKinlay <bryce@albatross.co.nz> From-SVN: r36679
2000-09-30 11:56:58 +02:00
const jsize min_heap_addr = 16*1024;
// A heuristic. If size is less than this value, the size
// stored in the array can't possibly be misinterpreted as
// a pointer. Thus we lose nothing by scanning the object
// completely conservatively, since no misidentification can
// take place.
if (size < min_heap_addr)
obj = GC_MALLOC(size);
else
obj = GC_generic_malloc (size, array_kind_x);
Implement bitmap descriptor based marking for Boehm GC. 2000-09-30 Hans Boehm <boehm@acm.org> Bryce McKinlay <bryce@albatross.co.nz> Implement bitmap descriptor based marking for Boehm GC. * configure.in: Define JC1GCSPEC. Set it if boehm-gc is used. * configure: Rebuilt. * libgcj.spec.in: Pass JC1GCSPEC to jc1. * include/jvm.h (struct _Jv_VTable): New field `gc_descr'. New inline method get_finalizer(). (struct _Jv_ArrayVTable): Ditto. Declare method array with NUM_OBJECT_METHODS elements instead of NUM_OBJECT_METHODS + 1. (_Jv_AllocObj): Add new jclass parameter. (_Jv_AllocArray): Ditto. (_Jv_BuildGCDescr): New prototype. * prims.cc (_Jv_AllocObject): Rename parameter `c' to `klass'. Pass `klass' to _Jv_AllocObj. Don't set the new object's vtable. Use get_finalizer() instead of direct finalizer vtable offset. (_Jv_NewObjectArray): Rename parameter `clas' to `klass'. Pass `klass' to _Jv_AllocArray. Don't set the new array's vtable. (_Jv_NewPrimArray): Call _Jv_FindArrayClass before _Jv_AllocObj. Pass `klass' to _Jv_AllocObj. Don't set the new array's vtable. * resolve.cc (METHOD_NOT_THERE, METHOD_INACCESSIBLE): New #defines. (_Jv_ResolvePoolEntry): Use METHOD_NOT_THERE and METHOD_INACCESSIBLE. (_Jv_DetermineVTableIndex): Ditto. (_Jv_PrepareClass): Ditto. Remove offset-by-one adjustments from vtable calculations to account for new gc_descr field. * boehm.cc: #include gc_gcj.h. (obj_kind_x, obj_free_list): `#if 0'-ed away. (_Jv_MarkObj): Check that vtable doesn't point to a cleared object. New commentary from HB. Mark the classes vtable. (_Jv_MarkArray): Check that vtable doesn't point to a cleared object. (GC_DEFAULT_DESCR): New #define. (_Jv_BuildGCDescr): New function. Use GC_DEFAULT_DESCR, for now. (_Jv_AllocObj): New parameter `klass'. Use GC_GCJ_MALLOC (). (_Jv_AllocArray): New parameter `klass'. Allocate with GC_MALLOC and scan conservativly if size is less than min_heap_addr. Set vtable pointer of new object before returning. (_Jv_AllocBytes): Use GC_MALLOC_ATOMIC, not GC_GENERIC_MALLOC. (_Jv_InitGC): Call GC_init_gcj_malloc(). Don't set up marking and allocation for obj_kind_x. * nogc.cc (_Jv_BuildGCDescr): New function. Return 0. (_Jv_AllocObj): Set vtable on returned object. (_Jv_AllocArray): Ditto. * java/lang/Class.h (_Jv_NewObjectArray): No longer a friend. (_Jv_NewPrimArray): Ditto. (_Jv_AllocObj): Declare as a friend. (_Jv_AllocArray): Ditto. * java/lang/natClassLoader.cc (_Jv_FindArrayClass): Copy gc_descr from &ObjectClass into new array class. Remove offset-by-one adjustments from `method' size calculations to account for gc_descr field. Co-Authored-By: Bryce McKinlay <bryce@albatross.co.nz> From-SVN: r36679
2000-09-30 11:56:58 +02:00
#endif
*((_Jv_VTable **) obj) = klass->vtable;
return obj;
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}
/* Allocate space for a new non-Java object, which does not have the usual
Java object header but may contain pointers to other GC'ed objects. */
void *
_Jv_AllocRawObj (jsize size)
{
return (void *) GC_MALLOC (size ? size : 1);
}
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static void
call_finalizer (GC_PTR obj, GC_PTR client_data)
{
_Jv_FinalizerFunc *fn = (_Jv_FinalizerFunc *) client_data;
jobject jobj = (jobject) obj;
(*fn) (jobj);
}
void
_Jv_RegisterFinalizer (void *object, _Jv_FinalizerFunc *meth)
{
GC_REGISTER_FINALIZER_NO_ORDER (object, call_finalizer, (GC_PTR) meth,
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NULL, NULL);
}
void
_Jv_RunFinalizers (void)
{
GC_invoke_finalizers ();
}
void
_Jv_RunAllFinalizers (void)
{
GC_finalize_all ();
}
void
_Jv_RunGC (void)
{
GC_gcollect ();
}
long
_Jv_GCTotalMemory (void)
{
return GC_get_heap_size ();
}
long
_Jv_GCFreeMemory (void)
{
return GC_get_free_bytes ();
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}
void
_Jv_GCSetInitialHeapSize (size_t size)
{
size_t current = GC_get_heap_size ();
if (size > current)
GC_expand_hp (size - current);
}
void
_Jv_GCSetMaximumHeapSize (size_t size)
{
GC_set_max_heap_size ((GC_word) size);
}
void
_Jv_DisableGC (void)
{
GC_disable();
}
void
_Jv_EnableGC (void)
{
GC_enable();
}
[multiple changes] 2001-05-23 Tom Tromey <tromey@redhat.com> * posix-threads.cc (_Jv_self_cache): Renamed from self_cache. * gcj/Makefile.in: Rebuilt. * gcj/Makefile.am (gcj_HEADERS): Added libgcj-config.h. * gcj/javaprims.h: Include gcj/libgcj-config.h. * gcj/libgcj-config.h.in: New file. * libgcj.spec.in (*jc1): Added @HASH_SYNC_SPEC@. * configure: Rebuilt. * configure.in: Enable hash synchronization by default on some platforms. (HASH_SYNC_SPEC): New subst. (AC_CONFIG_HEADER): Added gcj/libgcj-config.h. Correctly use `test -z' instead of `test -n' in a couple places. (JV_HASH_SYNCHRONIZATION): Use AC_DEFINE; don't add to LIBGCJ_CXXFLAGS. * configure.host (enable_java_net_default): Initialize. (enable_hash_synchronization_default): New variable. 2001-05-23 Hans Boehm <Hans_Boehm@hp.com> * boehm.cc (_Jv_MarkObj): Don't mark sync_info when hash synchronization in use. (_Jv_MarkArray): Likewise. (_Jv_AllocBytes): Don't check return result. (handle_out_of_memory): New function. (_Jv_InitGC): Set GC_oom_fn. (trace_one_vtable): New global. (_Jv_AllocTraceOne): New function. * configure.in: Added --enable-hash-synchronization. * defineclass.cc, prims.cc, resolve.cc, java/lang/natString.cc, java/net/natInetAddress.cc: Remove _Jv_AllocBytesChecked. * nogc.cc (_Jv_AllocObj): Throw out-of-memory. (_Jv_AllocArray): Likewise. (_Jv_AllocBytes): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_AllocTraceOne): Likewise. * posix-threads.cc (_Jv_ThreadRegister): Handle slow pthread_self(). (self_cache): New global. (_Jv_ThreadSelf_out_of_line): New function. * prims.cc (_Jv_AllocBytesChecked): Removed. (_Jv_ThrowNoMemory): New function. (_Jv_AllocObject): Don't check for null return from allocator. (_Jv_NewObjectArray): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_NewPrimArray): Allocate pointer-free object if possible. * include/javaprims.h (_Jv_AllocPtrFreeObject): Declare. (_Jv_MonitorEnter, _Jv_MonitorExit): Don't return value. * include/boehm-gc.h (_Jv_AllocObj): Define. (_Jv_AllocPtrFreeObj): Define. * include/jvm.h (_Jv_AllocPtrFreeObj): Declare. (_Jv_ThrowNoMemory): Declare. (_Jv_AllocTraceOne): Declare. (_Jv_AllocBytesChecked): Removed. * include/posix-threads.h (_Jv_MutexInit, _Jv_MutexLock, _Jv_MutexUnlock): Handle LOCK_DEBUG. (_Jv_ThreadSelf): Handle case where system pthread_self() is slow. * java/lang/Class.h (Class): Declare _Jv_AllocPtrFreeObj as friend. * java/lang/Object.h (sync_info): Conditional upon presence of hash synchronization. * java/lang/natObject.cc: Much new code to handle thin locks and hash synchronization. * java/lang/natString.cc (_Jv_AllocString): Allocate pointer-free object if possible. From-SVN: r42519
2001-05-24 07:40:37 +02:00
static void * handle_out_of_memory(size_t)
{
_Jv_ThrowNoMemory();
}
static void
gcj_describe_type_fn(void *obj, char *out_buf)
{
_Jv_VTable *dt = *(_Jv_VTable **) obj;
if (! dt /* Shouldn't happen */)
{
strcpy(out_buf, "GCJ (bad)");
return;
}
jclass klass = dt->clas;
if (!klass /* shouldn't happen */)
{
strcpy(out_buf, "GCJ (bad)");
return;
}
jstring name = klass -> getName();
size_t len = name -> length();
if (len >= GC_TYPE_DESCR_LEN) len = GC_TYPE_DESCR_LEN - 1;
JvGetStringUTFRegion (name, 0, len, out_buf);
out_buf[len] = '\0';
}
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void
_Jv_InitGC (void)
{
int proc;
lang.c (java_init): Handle flag_indirect_classes. 2006-04-21 Andrew Haley <aph@redhat.com> * lang.c (java_init): Handle flag_indirect_classes. * jvgenmain.c: Use "class$$" instead of "class$". * mangle.c (java_mangle_decl): Accept RECORD_TYPEs sw well as DECLs. (mangle_class_field): Special case "class$$" as well as "class$". * constants.c (build_ref_from_constant_pool): If flag_indirect_classes, generate a ref into the heap. * decl.c (constants_field_decl_node, constants_data_field_decl_node): New. * class.c (build_static_class_ref): New. (build_classdollar_field): Factor out from build_class_ref(). (make_field_value): Handle static fields in heap. (make_class_data): Make sure we get a static ref to class. Make class initializer const if flag_indirect_classes. (register_class): Build a class_ref for initialization if flag_indirect_classes. (emit_indirect_register_classes): New. 2006-04-21 Andrew Haley <aph@redhat.com> * include/execution.h (struct _Jv_CompiledEngine): Define for compiled classes. * java/lang/natClassLoader.cc (_Jv_RegisterClasses): Call _Jv_RegisterLibForGc. (_Jv_RegisterClasses_Counted): Likewise. (_Jv_NewClassFromInitializer): New. (_Jv_RegisterNewClasses): New. * sources.am: Regenerate. * boehm.cc (_Jv_GC_has_static_roots): new. (_Jv_InitGC): Call GC_register_has_static_roots_callback. (filename_node, find_file, _Jv_print_gc_store, new_node, _Jv_GC_has_static_roots, _Jv_RegisterLibForGc): New. * scripts/makemake.tcl: Add -fno-indirect-classes. * Makefile.in: Regenerate. * link.cc (resolve_pool_entry): Allocate constant pool. Allocate fields. From-SVN: r113224
2006-04-24 17:33:16 +02:00
static bool gc_initialized;
if (gc_initialized)
return;
gc_initialized = 1;
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// Ignore pointers that do not point to the start of an object.
GC_all_interior_pointers = 0;
Implement bitmap descriptor based marking for Boehm GC. 2000-09-30 Hans Boehm <boehm@acm.org> Bryce McKinlay <bryce@albatross.co.nz> Implement bitmap descriptor based marking for Boehm GC. * configure.in: Define JC1GCSPEC. Set it if boehm-gc is used. * configure: Rebuilt. * libgcj.spec.in: Pass JC1GCSPEC to jc1. * include/jvm.h (struct _Jv_VTable): New field `gc_descr'. New inline method get_finalizer(). (struct _Jv_ArrayVTable): Ditto. Declare method array with NUM_OBJECT_METHODS elements instead of NUM_OBJECT_METHODS + 1. (_Jv_AllocObj): Add new jclass parameter. (_Jv_AllocArray): Ditto. (_Jv_BuildGCDescr): New prototype. * prims.cc (_Jv_AllocObject): Rename parameter `c' to `klass'. Pass `klass' to _Jv_AllocObj. Don't set the new object's vtable. Use get_finalizer() instead of direct finalizer vtable offset. (_Jv_NewObjectArray): Rename parameter `clas' to `klass'. Pass `klass' to _Jv_AllocArray. Don't set the new array's vtable. (_Jv_NewPrimArray): Call _Jv_FindArrayClass before _Jv_AllocObj. Pass `klass' to _Jv_AllocObj. Don't set the new array's vtable. * resolve.cc (METHOD_NOT_THERE, METHOD_INACCESSIBLE): New #defines. (_Jv_ResolvePoolEntry): Use METHOD_NOT_THERE and METHOD_INACCESSIBLE. (_Jv_DetermineVTableIndex): Ditto. (_Jv_PrepareClass): Ditto. Remove offset-by-one adjustments from vtable calculations to account for new gc_descr field. * boehm.cc: #include gc_gcj.h. (obj_kind_x, obj_free_list): `#if 0'-ed away. (_Jv_MarkObj): Check that vtable doesn't point to a cleared object. New commentary from HB. Mark the classes vtable. (_Jv_MarkArray): Check that vtable doesn't point to a cleared object. (GC_DEFAULT_DESCR): New #define. (_Jv_BuildGCDescr): New function. Use GC_DEFAULT_DESCR, for now. (_Jv_AllocObj): New parameter `klass'. Use GC_GCJ_MALLOC (). (_Jv_AllocArray): New parameter `klass'. Allocate with GC_MALLOC and scan conservativly if size is less than min_heap_addr. Set vtable pointer of new object before returning. (_Jv_AllocBytes): Use GC_MALLOC_ATOMIC, not GC_GENERIC_MALLOC. (_Jv_InitGC): Call GC_init_gcj_malloc(). Don't set up marking and allocation for obj_kind_x. * nogc.cc (_Jv_BuildGCDescr): New function. Return 0. (_Jv_AllocObj): Set vtable on returned object. (_Jv_AllocArray): Ditto. * java/lang/Class.h (_Jv_NewObjectArray): No longer a friend. (_Jv_NewPrimArray): Ditto. (_Jv_AllocObj): Declare as a friend. (_Jv_AllocArray): Ditto. * java/lang/natClassLoader.cc (_Jv_FindArrayClass): Copy gc_descr from &ObjectClass into new array class. Remove offset-by-one adjustments from `method' size calculations to account for gc_descr field. Co-Authored-By: Bryce McKinlay <bryce@albatross.co.nz> From-SVN: r36679
2000-09-30 11:56:58 +02:00
lang.c (java_init): Handle flag_indirect_classes. 2006-04-21 Andrew Haley <aph@redhat.com> * lang.c (java_init): Handle flag_indirect_classes. * jvgenmain.c: Use "class$$" instead of "class$". * mangle.c (java_mangle_decl): Accept RECORD_TYPEs sw well as DECLs. (mangle_class_field): Special case "class$$" as well as "class$". * constants.c (build_ref_from_constant_pool): If flag_indirect_classes, generate a ref into the heap. * decl.c (constants_field_decl_node, constants_data_field_decl_node): New. * class.c (build_static_class_ref): New. (build_classdollar_field): Factor out from build_class_ref(). (make_field_value): Handle static fields in heap. (make_class_data): Make sure we get a static ref to class. Make class initializer const if flag_indirect_classes. (register_class): Build a class_ref for initialization if flag_indirect_classes. (emit_indirect_register_classes): New. 2006-04-21 Andrew Haley <aph@redhat.com> * include/execution.h (struct _Jv_CompiledEngine): Define for compiled classes. * java/lang/natClassLoader.cc (_Jv_RegisterClasses): Call _Jv_RegisterLibForGc. (_Jv_RegisterClasses_Counted): Likewise. (_Jv_NewClassFromInitializer): New. (_Jv_RegisterNewClasses): New. * sources.am: Regenerate. * boehm.cc (_Jv_GC_has_static_roots): new. (_Jv_InitGC): Call GC_register_has_static_roots_callback. (filename_node, find_file, _Jv_print_gc_store, new_node, _Jv_GC_has_static_roots, _Jv_RegisterLibForGc): New. * scripts/makemake.tcl: Add -fno-indirect-classes. * Makefile.in: Regenerate. * link.cc (resolve_pool_entry): Allocate constant pool. Allocate fields. From-SVN: r113224
2006-04-24 17:33:16 +02:00
#ifdef HAVE_DLFCN_H
// Tell the collector to ask us before scanning DSOs.
GC_register_has_static_roots_callback (_Jv_GC_has_static_roots);
#endif
Implement bitmap descriptor based marking for Boehm GC. 2000-09-30 Hans Boehm <boehm@acm.org> Bryce McKinlay <bryce@albatross.co.nz> Implement bitmap descriptor based marking for Boehm GC. * configure.in: Define JC1GCSPEC. Set it if boehm-gc is used. * configure: Rebuilt. * libgcj.spec.in: Pass JC1GCSPEC to jc1. * include/jvm.h (struct _Jv_VTable): New field `gc_descr'. New inline method get_finalizer(). (struct _Jv_ArrayVTable): Ditto. Declare method array with NUM_OBJECT_METHODS elements instead of NUM_OBJECT_METHODS + 1. (_Jv_AllocObj): Add new jclass parameter. (_Jv_AllocArray): Ditto. (_Jv_BuildGCDescr): New prototype. * prims.cc (_Jv_AllocObject): Rename parameter `c' to `klass'. Pass `klass' to _Jv_AllocObj. Don't set the new object's vtable. Use get_finalizer() instead of direct finalizer vtable offset. (_Jv_NewObjectArray): Rename parameter `clas' to `klass'. Pass `klass' to _Jv_AllocArray. Don't set the new array's vtable. (_Jv_NewPrimArray): Call _Jv_FindArrayClass before _Jv_AllocObj. Pass `klass' to _Jv_AllocObj. Don't set the new array's vtable. * resolve.cc (METHOD_NOT_THERE, METHOD_INACCESSIBLE): New #defines. (_Jv_ResolvePoolEntry): Use METHOD_NOT_THERE and METHOD_INACCESSIBLE. (_Jv_DetermineVTableIndex): Ditto. (_Jv_PrepareClass): Ditto. Remove offset-by-one adjustments from vtable calculations to account for new gc_descr field. * boehm.cc: #include gc_gcj.h. (obj_kind_x, obj_free_list): `#if 0'-ed away. (_Jv_MarkObj): Check that vtable doesn't point to a cleared object. New commentary from HB. Mark the classes vtable. (_Jv_MarkArray): Check that vtable doesn't point to a cleared object. (GC_DEFAULT_DESCR): New #define. (_Jv_BuildGCDescr): New function. Use GC_DEFAULT_DESCR, for now. (_Jv_AllocObj): New parameter `klass'. Use GC_GCJ_MALLOC (). (_Jv_AllocArray): New parameter `klass'. Allocate with GC_MALLOC and scan conservativly if size is less than min_heap_addr. Set vtable pointer of new object before returning. (_Jv_AllocBytes): Use GC_MALLOC_ATOMIC, not GC_GENERIC_MALLOC. (_Jv_InitGC): Call GC_init_gcj_malloc(). Don't set up marking and allocation for obj_kind_x. * nogc.cc (_Jv_BuildGCDescr): New function. Return 0. (_Jv_AllocObj): Set vtable on returned object. (_Jv_AllocArray): Ditto. * java/lang/Class.h (_Jv_NewObjectArray): No longer a friend. (_Jv_NewPrimArray): Ditto. (_Jv_AllocObj): Declare as a friend. (_Jv_AllocArray): Ditto. * java/lang/natClassLoader.cc (_Jv_FindArrayClass): Copy gc_descr from &ObjectClass into new array class. Remove offset-by-one adjustments from `method' size calculations to account for gc_descr field. Co-Authored-By: Bryce McKinlay <bryce@albatross.co.nz> From-SVN: r36679
2000-09-30 11:56:58 +02:00
// Configure the collector to use the bitmap marking descriptors that we
// stash in the class vtable.
// We always use mark proc descriptor 0, since the compiler knows
// about it.
Implement bitmap descriptor based marking for Boehm GC. 2000-09-30 Hans Boehm <boehm@acm.org> Bryce McKinlay <bryce@albatross.co.nz> Implement bitmap descriptor based marking for Boehm GC. * configure.in: Define JC1GCSPEC. Set it if boehm-gc is used. * configure: Rebuilt. * libgcj.spec.in: Pass JC1GCSPEC to jc1. * include/jvm.h (struct _Jv_VTable): New field `gc_descr'. New inline method get_finalizer(). (struct _Jv_ArrayVTable): Ditto. Declare method array with NUM_OBJECT_METHODS elements instead of NUM_OBJECT_METHODS + 1. (_Jv_AllocObj): Add new jclass parameter. (_Jv_AllocArray): Ditto. (_Jv_BuildGCDescr): New prototype. * prims.cc (_Jv_AllocObject): Rename parameter `c' to `klass'. Pass `klass' to _Jv_AllocObj. Don't set the new object's vtable. Use get_finalizer() instead of direct finalizer vtable offset. (_Jv_NewObjectArray): Rename parameter `clas' to `klass'. Pass `klass' to _Jv_AllocArray. Don't set the new array's vtable. (_Jv_NewPrimArray): Call _Jv_FindArrayClass before _Jv_AllocObj. Pass `klass' to _Jv_AllocObj. Don't set the new array's vtable. * resolve.cc (METHOD_NOT_THERE, METHOD_INACCESSIBLE): New #defines. (_Jv_ResolvePoolEntry): Use METHOD_NOT_THERE and METHOD_INACCESSIBLE. (_Jv_DetermineVTableIndex): Ditto. (_Jv_PrepareClass): Ditto. Remove offset-by-one adjustments from vtable calculations to account for new gc_descr field. * boehm.cc: #include gc_gcj.h. (obj_kind_x, obj_free_list): `#if 0'-ed away. (_Jv_MarkObj): Check that vtable doesn't point to a cleared object. New commentary from HB. Mark the classes vtable. (_Jv_MarkArray): Check that vtable doesn't point to a cleared object. (GC_DEFAULT_DESCR): New #define. (_Jv_BuildGCDescr): New function. Use GC_DEFAULT_DESCR, for now. (_Jv_AllocObj): New parameter `klass'. Use GC_GCJ_MALLOC (). (_Jv_AllocArray): New parameter `klass'. Allocate with GC_MALLOC and scan conservativly if size is less than min_heap_addr. Set vtable pointer of new object before returning. (_Jv_AllocBytes): Use GC_MALLOC_ATOMIC, not GC_GENERIC_MALLOC. (_Jv_InitGC): Call GC_init_gcj_malloc(). Don't set up marking and allocation for obj_kind_x. * nogc.cc (_Jv_BuildGCDescr): New function. Return 0. (_Jv_AllocObj): Set vtable on returned object. (_Jv_AllocArray): Ditto. * java/lang/Class.h (_Jv_NewObjectArray): No longer a friend. (_Jv_NewPrimArray): Ditto. (_Jv_AllocObj): Declare as a friend. (_Jv_AllocArray): Ditto. * java/lang/natClassLoader.cc (_Jv_FindArrayClass): Copy gc_descr from &ObjectClass into new array class. Remove offset-by-one adjustments from `method' size calculations to account for gc_descr field. Co-Authored-By: Bryce McKinlay <bryce@albatross.co.nz> From-SVN: r36679
2000-09-30 11:56:58 +02:00
GC_init_gcj_malloc (0, (void *) _Jv_MarkObj);
[multiple changes] 2001-05-23 Tom Tromey <tromey@redhat.com> * posix-threads.cc (_Jv_self_cache): Renamed from self_cache. * gcj/Makefile.in: Rebuilt. * gcj/Makefile.am (gcj_HEADERS): Added libgcj-config.h. * gcj/javaprims.h: Include gcj/libgcj-config.h. * gcj/libgcj-config.h.in: New file. * libgcj.spec.in (*jc1): Added @HASH_SYNC_SPEC@. * configure: Rebuilt. * configure.in: Enable hash synchronization by default on some platforms. (HASH_SYNC_SPEC): New subst. (AC_CONFIG_HEADER): Added gcj/libgcj-config.h. Correctly use `test -z' instead of `test -n' in a couple places. (JV_HASH_SYNCHRONIZATION): Use AC_DEFINE; don't add to LIBGCJ_CXXFLAGS. * configure.host (enable_java_net_default): Initialize. (enable_hash_synchronization_default): New variable. 2001-05-23 Hans Boehm <Hans_Boehm@hp.com> * boehm.cc (_Jv_MarkObj): Don't mark sync_info when hash synchronization in use. (_Jv_MarkArray): Likewise. (_Jv_AllocBytes): Don't check return result. (handle_out_of_memory): New function. (_Jv_InitGC): Set GC_oom_fn. (trace_one_vtable): New global. (_Jv_AllocTraceOne): New function. * configure.in: Added --enable-hash-synchronization. * defineclass.cc, prims.cc, resolve.cc, java/lang/natString.cc, java/net/natInetAddress.cc: Remove _Jv_AllocBytesChecked. * nogc.cc (_Jv_AllocObj): Throw out-of-memory. (_Jv_AllocArray): Likewise. (_Jv_AllocBytes): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_AllocTraceOne): Likewise. * posix-threads.cc (_Jv_ThreadRegister): Handle slow pthread_self(). (self_cache): New global. (_Jv_ThreadSelf_out_of_line): New function. * prims.cc (_Jv_AllocBytesChecked): Removed. (_Jv_ThrowNoMemory): New function. (_Jv_AllocObject): Don't check for null return from allocator. (_Jv_NewObjectArray): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_NewPrimArray): Allocate pointer-free object if possible. * include/javaprims.h (_Jv_AllocPtrFreeObject): Declare. (_Jv_MonitorEnter, _Jv_MonitorExit): Don't return value. * include/boehm-gc.h (_Jv_AllocObj): Define. (_Jv_AllocPtrFreeObj): Define. * include/jvm.h (_Jv_AllocPtrFreeObj): Declare. (_Jv_ThrowNoMemory): Declare. (_Jv_AllocTraceOne): Declare. (_Jv_AllocBytesChecked): Removed. * include/posix-threads.h (_Jv_MutexInit, _Jv_MutexLock, _Jv_MutexUnlock): Handle LOCK_DEBUG. (_Jv_ThreadSelf): Handle case where system pthread_self() is slow. * java/lang/Class.h (Class): Declare _Jv_AllocPtrFreeObj as friend. * java/lang/Object.h (sync_info): Conditional upon presence of hash synchronization. * java/lang/natObject.cc: Much new code to handle thin locks and hash synchronization. * java/lang/natString.cc (_Jv_AllocString): Allocate pointer-free object if possible. From-SVN: r42519
2001-05-24 07:40:37 +02:00
// Cause an out of memory error to be thrown from the allocators,
// instead of returning 0. This is cheaper than checking on allocation.
GC_oom_fn = handle_out_of_memory;
Implement bitmap descriptor based marking for Boehm GC. 2000-09-30 Hans Boehm <boehm@acm.org> Bryce McKinlay <bryce@albatross.co.nz> Implement bitmap descriptor based marking for Boehm GC. * configure.in: Define JC1GCSPEC. Set it if boehm-gc is used. * configure: Rebuilt. * libgcj.spec.in: Pass JC1GCSPEC to jc1. * include/jvm.h (struct _Jv_VTable): New field `gc_descr'. New inline method get_finalizer(). (struct _Jv_ArrayVTable): Ditto. Declare method array with NUM_OBJECT_METHODS elements instead of NUM_OBJECT_METHODS + 1. (_Jv_AllocObj): Add new jclass parameter. (_Jv_AllocArray): Ditto. (_Jv_BuildGCDescr): New prototype. * prims.cc (_Jv_AllocObject): Rename parameter `c' to `klass'. Pass `klass' to _Jv_AllocObj. Don't set the new object's vtable. Use get_finalizer() instead of direct finalizer vtable offset. (_Jv_NewObjectArray): Rename parameter `clas' to `klass'. Pass `klass' to _Jv_AllocArray. Don't set the new array's vtable. (_Jv_NewPrimArray): Call _Jv_FindArrayClass before _Jv_AllocObj. Pass `klass' to _Jv_AllocObj. Don't set the new array's vtable. * resolve.cc (METHOD_NOT_THERE, METHOD_INACCESSIBLE): New #defines. (_Jv_ResolvePoolEntry): Use METHOD_NOT_THERE and METHOD_INACCESSIBLE. (_Jv_DetermineVTableIndex): Ditto. (_Jv_PrepareClass): Ditto. Remove offset-by-one adjustments from vtable calculations to account for new gc_descr field. * boehm.cc: #include gc_gcj.h. (obj_kind_x, obj_free_list): `#if 0'-ed away. (_Jv_MarkObj): Check that vtable doesn't point to a cleared object. New commentary from HB. Mark the classes vtable. (_Jv_MarkArray): Check that vtable doesn't point to a cleared object. (GC_DEFAULT_DESCR): New #define. (_Jv_BuildGCDescr): New function. Use GC_DEFAULT_DESCR, for now. (_Jv_AllocObj): New parameter `klass'. Use GC_GCJ_MALLOC (). (_Jv_AllocArray): New parameter `klass'. Allocate with GC_MALLOC and scan conservativly if size is less than min_heap_addr. Set vtable pointer of new object before returning. (_Jv_AllocBytes): Use GC_MALLOC_ATOMIC, not GC_GENERIC_MALLOC. (_Jv_InitGC): Call GC_init_gcj_malloc(). Don't set up marking and allocation for obj_kind_x. * nogc.cc (_Jv_BuildGCDescr): New function. Return 0. (_Jv_AllocObj): Set vtable on returned object. (_Jv_AllocArray): Ditto. * java/lang/Class.h (_Jv_NewObjectArray): No longer a friend. (_Jv_NewPrimArray): Ditto. (_Jv_AllocObj): Declare as a friend. (_Jv_AllocArray): Ditto. * java/lang/natClassLoader.cc (_Jv_FindArrayClass): Copy gc_descr from &ObjectClass into new array class. Remove offset-by-one adjustments from `method' size calculations to account for gc_descr field. Co-Authored-By: Bryce McKinlay <bryce@albatross.co.nz> From-SVN: r36679
2000-09-30 11:56:58 +02:00
GC_java_finalization = 1;
// We use a different mark procedure for object arrays. This code
// configures a different object `kind' for object array allocation and
// marking.
array_free_list = GC_new_free_list();
proc = GC_new_proc((GC_mark_proc)_Jv_MarkArray);
array_kind_x = GC_new_kind(array_free_list, GC_MAKE_PROC (proc, 0), 0, 1);
// Arrange to have the GC print Java class names in backtraces, etc.
GC_register_describe_type_fn(GC_gcj_kind, gcj_describe_type_fn);
GC_register_describe_type_fn(GC_gcj_debug_kind, gcj_describe_type_fn);
Implement bitmap descriptor based marking for Boehm GC. 2000-09-30 Hans Boehm <boehm@acm.org> Bryce McKinlay <bryce@albatross.co.nz> Implement bitmap descriptor based marking for Boehm GC. * configure.in: Define JC1GCSPEC. Set it if boehm-gc is used. * configure: Rebuilt. * libgcj.spec.in: Pass JC1GCSPEC to jc1. * include/jvm.h (struct _Jv_VTable): New field `gc_descr'. New inline method get_finalizer(). (struct _Jv_ArrayVTable): Ditto. Declare method array with NUM_OBJECT_METHODS elements instead of NUM_OBJECT_METHODS + 1. (_Jv_AllocObj): Add new jclass parameter. (_Jv_AllocArray): Ditto. (_Jv_BuildGCDescr): New prototype. * prims.cc (_Jv_AllocObject): Rename parameter `c' to `klass'. Pass `klass' to _Jv_AllocObj. Don't set the new object's vtable. Use get_finalizer() instead of direct finalizer vtable offset. (_Jv_NewObjectArray): Rename parameter `clas' to `klass'. Pass `klass' to _Jv_AllocArray. Don't set the new array's vtable. (_Jv_NewPrimArray): Call _Jv_FindArrayClass before _Jv_AllocObj. Pass `klass' to _Jv_AllocObj. Don't set the new array's vtable. * resolve.cc (METHOD_NOT_THERE, METHOD_INACCESSIBLE): New #defines. (_Jv_ResolvePoolEntry): Use METHOD_NOT_THERE and METHOD_INACCESSIBLE. (_Jv_DetermineVTableIndex): Ditto. (_Jv_PrepareClass): Ditto. Remove offset-by-one adjustments from vtable calculations to account for new gc_descr field. * boehm.cc: #include gc_gcj.h. (obj_kind_x, obj_free_list): `#if 0'-ed away. (_Jv_MarkObj): Check that vtable doesn't point to a cleared object. New commentary from HB. Mark the classes vtable. (_Jv_MarkArray): Check that vtable doesn't point to a cleared object. (GC_DEFAULT_DESCR): New #define. (_Jv_BuildGCDescr): New function. Use GC_DEFAULT_DESCR, for now. (_Jv_AllocObj): New parameter `klass'. Use GC_GCJ_MALLOC (). (_Jv_AllocArray): New parameter `klass'. Allocate with GC_MALLOC and scan conservativly if size is less than min_heap_addr. Set vtable pointer of new object before returning. (_Jv_AllocBytes): Use GC_MALLOC_ATOMIC, not GC_GENERIC_MALLOC. (_Jv_InitGC): Call GC_init_gcj_malloc(). Don't set up marking and allocation for obj_kind_x. * nogc.cc (_Jv_BuildGCDescr): New function. Return 0. (_Jv_AllocObj): Set vtable on returned object. (_Jv_AllocArray): Ditto. * java/lang/Class.h (_Jv_NewObjectArray): No longer a friend. (_Jv_NewPrimArray): Ditto. (_Jv_AllocObj): Declare as a friend. (_Jv_AllocArray): Ditto. * java/lang/natClassLoader.cc (_Jv_FindArrayClass): Copy gc_descr from &ObjectClass into new array class. Remove offset-by-one adjustments from `method' size calculations to account for gc_descr field. Co-Authored-By: Bryce McKinlay <bryce@albatross.co.nz> From-SVN: r36679
2000-09-30 11:56:58 +02:00
}
[multiple changes] 2001-05-23 Tom Tromey <tromey@redhat.com> * posix-threads.cc (_Jv_self_cache): Renamed from self_cache. * gcj/Makefile.in: Rebuilt. * gcj/Makefile.am (gcj_HEADERS): Added libgcj-config.h. * gcj/javaprims.h: Include gcj/libgcj-config.h. * gcj/libgcj-config.h.in: New file. * libgcj.spec.in (*jc1): Added @HASH_SYNC_SPEC@. * configure: Rebuilt. * configure.in: Enable hash synchronization by default on some platforms. (HASH_SYNC_SPEC): New subst. (AC_CONFIG_HEADER): Added gcj/libgcj-config.h. Correctly use `test -z' instead of `test -n' in a couple places. (JV_HASH_SYNCHRONIZATION): Use AC_DEFINE; don't add to LIBGCJ_CXXFLAGS. * configure.host (enable_java_net_default): Initialize. (enable_hash_synchronization_default): New variable. 2001-05-23 Hans Boehm <Hans_Boehm@hp.com> * boehm.cc (_Jv_MarkObj): Don't mark sync_info when hash synchronization in use. (_Jv_MarkArray): Likewise. (_Jv_AllocBytes): Don't check return result. (handle_out_of_memory): New function. (_Jv_InitGC): Set GC_oom_fn. (trace_one_vtable): New global. (_Jv_AllocTraceOne): New function. * configure.in: Added --enable-hash-synchronization. * defineclass.cc, prims.cc, resolve.cc, java/lang/natString.cc, java/net/natInetAddress.cc: Remove _Jv_AllocBytesChecked. * nogc.cc (_Jv_AllocObj): Throw out-of-memory. (_Jv_AllocArray): Likewise. (_Jv_AllocBytes): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_AllocTraceOne): Likewise. * posix-threads.cc (_Jv_ThreadRegister): Handle slow pthread_self(). (self_cache): New global. (_Jv_ThreadSelf_out_of_line): New function. * prims.cc (_Jv_AllocBytesChecked): Removed. (_Jv_ThrowNoMemory): New function. (_Jv_AllocObject): Don't check for null return from allocator. (_Jv_NewObjectArray): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_NewPrimArray): Allocate pointer-free object if possible. * include/javaprims.h (_Jv_AllocPtrFreeObject): Declare. (_Jv_MonitorEnter, _Jv_MonitorExit): Don't return value. * include/boehm-gc.h (_Jv_AllocObj): Define. (_Jv_AllocPtrFreeObj): Define. * include/jvm.h (_Jv_AllocPtrFreeObj): Declare. (_Jv_ThrowNoMemory): Declare. (_Jv_AllocTraceOne): Declare. (_Jv_AllocBytesChecked): Removed. * include/posix-threads.h (_Jv_MutexInit, _Jv_MutexLock, _Jv_MutexUnlock): Handle LOCK_DEBUG. (_Jv_ThreadSelf): Handle case where system pthread_self() is slow. * java/lang/Class.h (Class): Declare _Jv_AllocPtrFreeObj as friend. * java/lang/Object.h (sync_info): Conditional upon presence of hash synchronization. * java/lang/natObject.cc: Much new code to handle thin locks and hash synchronization. * java/lang/natString.cc (_Jv_AllocString): Allocate pointer-free object if possible. From-SVN: r42519
2001-05-24 07:40:37 +02:00
#ifdef JV_HASH_SYNCHRONIZATION
// Allocate an object with a fake vtable pointer, which causes only
// the first field (beyond the fake vtable pointer) to be traced.
// Eventually this should probably be generalized.
static _Jv_VTable trace_one_vtable = {
0, // class pointer
(void *)(2 * sizeof(void *)),
// descriptor; scan 2 words incl. vtable ptr.
// Least significant bits must be zero to
// identify this as a length descriptor
[multiple changes] 2001-05-23 Tom Tromey <tromey@redhat.com> * posix-threads.cc (_Jv_self_cache): Renamed from self_cache. * gcj/Makefile.in: Rebuilt. * gcj/Makefile.am (gcj_HEADERS): Added libgcj-config.h. * gcj/javaprims.h: Include gcj/libgcj-config.h. * gcj/libgcj-config.h.in: New file. * libgcj.spec.in (*jc1): Added @HASH_SYNC_SPEC@. * configure: Rebuilt. * configure.in: Enable hash synchronization by default on some platforms. (HASH_SYNC_SPEC): New subst. (AC_CONFIG_HEADER): Added gcj/libgcj-config.h. Correctly use `test -z' instead of `test -n' in a couple places. (JV_HASH_SYNCHRONIZATION): Use AC_DEFINE; don't add to LIBGCJ_CXXFLAGS. * configure.host (enable_java_net_default): Initialize. (enable_hash_synchronization_default): New variable. 2001-05-23 Hans Boehm <Hans_Boehm@hp.com> * boehm.cc (_Jv_MarkObj): Don't mark sync_info when hash synchronization in use. (_Jv_MarkArray): Likewise. (_Jv_AllocBytes): Don't check return result. (handle_out_of_memory): New function. (_Jv_InitGC): Set GC_oom_fn. (trace_one_vtable): New global. (_Jv_AllocTraceOne): New function. * configure.in: Added --enable-hash-synchronization. * defineclass.cc, prims.cc, resolve.cc, java/lang/natString.cc, java/net/natInetAddress.cc: Remove _Jv_AllocBytesChecked. * nogc.cc (_Jv_AllocObj): Throw out-of-memory. (_Jv_AllocArray): Likewise. (_Jv_AllocBytes): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_AllocTraceOne): Likewise. * posix-threads.cc (_Jv_ThreadRegister): Handle slow pthread_self(). (self_cache): New global. (_Jv_ThreadSelf_out_of_line): New function. * prims.cc (_Jv_AllocBytesChecked): Removed. (_Jv_ThrowNoMemory): New function. (_Jv_AllocObject): Don't check for null return from allocator. (_Jv_NewObjectArray): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_NewPrimArray): Allocate pointer-free object if possible. * include/javaprims.h (_Jv_AllocPtrFreeObject): Declare. (_Jv_MonitorEnter, _Jv_MonitorExit): Don't return value. * include/boehm-gc.h (_Jv_AllocObj): Define. (_Jv_AllocPtrFreeObj): Define. * include/jvm.h (_Jv_AllocPtrFreeObj): Declare. (_Jv_ThrowNoMemory): Declare. (_Jv_AllocTraceOne): Declare. (_Jv_AllocBytesChecked): Removed. * include/posix-threads.h (_Jv_MutexInit, _Jv_MutexLock, _Jv_MutexUnlock): Handle LOCK_DEBUG. (_Jv_ThreadSelf): Handle case where system pthread_self() is slow. * java/lang/Class.h (Class): Declare _Jv_AllocPtrFreeObj as friend. * java/lang/Object.h (sync_info): Conditional upon presence of hash synchronization. * java/lang/natObject.cc: Much new code to handle thin locks and hash synchronization. * java/lang/natString.cc (_Jv_AllocString): Allocate pointer-free object if possible. From-SVN: r42519
2001-05-24 07:40:37 +02:00
{0} // First method
};
void *
_Jv_AllocTraceOne (jsize size /* includes vtable slot */)
{
return GC_GCJ_MALLOC (size, &trace_one_vtable);
}
// Ditto for two words.
// the first field (beyond the fake vtable pointer) to be traced.
// Eventually this should probably be generalized.
static _Jv_VTable trace_two_vtable =
{
0, // class pointer
(void *)(3 * sizeof(void *)),
// descriptor; scan 3 words incl. vtable ptr.
{0} // First method
};
void *
_Jv_AllocTraceTwo (jsize size /* includes vtable slot */)
{
return GC_GCJ_MALLOC (size, &trace_two_vtable);
}
[multiple changes] 2001-05-23 Tom Tromey <tromey@redhat.com> * posix-threads.cc (_Jv_self_cache): Renamed from self_cache. * gcj/Makefile.in: Rebuilt. * gcj/Makefile.am (gcj_HEADERS): Added libgcj-config.h. * gcj/javaprims.h: Include gcj/libgcj-config.h. * gcj/libgcj-config.h.in: New file. * libgcj.spec.in (*jc1): Added @HASH_SYNC_SPEC@. * configure: Rebuilt. * configure.in: Enable hash synchronization by default on some platforms. (HASH_SYNC_SPEC): New subst. (AC_CONFIG_HEADER): Added gcj/libgcj-config.h. Correctly use `test -z' instead of `test -n' in a couple places. (JV_HASH_SYNCHRONIZATION): Use AC_DEFINE; don't add to LIBGCJ_CXXFLAGS. * configure.host (enable_java_net_default): Initialize. (enable_hash_synchronization_default): New variable. 2001-05-23 Hans Boehm <Hans_Boehm@hp.com> * boehm.cc (_Jv_MarkObj): Don't mark sync_info when hash synchronization in use. (_Jv_MarkArray): Likewise. (_Jv_AllocBytes): Don't check return result. (handle_out_of_memory): New function. (_Jv_InitGC): Set GC_oom_fn. (trace_one_vtable): New global. (_Jv_AllocTraceOne): New function. * configure.in: Added --enable-hash-synchronization. * defineclass.cc, prims.cc, resolve.cc, java/lang/natString.cc, java/net/natInetAddress.cc: Remove _Jv_AllocBytesChecked. * nogc.cc (_Jv_AllocObj): Throw out-of-memory. (_Jv_AllocArray): Likewise. (_Jv_AllocBytes): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_AllocTraceOne): Likewise. * posix-threads.cc (_Jv_ThreadRegister): Handle slow pthread_self(). (self_cache): New global. (_Jv_ThreadSelf_out_of_line): New function. * prims.cc (_Jv_AllocBytesChecked): Removed. (_Jv_ThrowNoMemory): New function. (_Jv_AllocObject): Don't check for null return from allocator. (_Jv_NewObjectArray): Likewise. (_Jv_AllocPtrFreeObject): New function. (_Jv_NewPrimArray): Allocate pointer-free object if possible. * include/javaprims.h (_Jv_AllocPtrFreeObject): Declare. (_Jv_MonitorEnter, _Jv_MonitorExit): Don't return value. * include/boehm-gc.h (_Jv_AllocObj): Define. (_Jv_AllocPtrFreeObj): Define. * include/jvm.h (_Jv_AllocPtrFreeObj): Declare. (_Jv_ThrowNoMemory): Declare. (_Jv_AllocTraceOne): Declare. (_Jv_AllocBytesChecked): Removed. * include/posix-threads.h (_Jv_MutexInit, _Jv_MutexLock, _Jv_MutexUnlock): Handle LOCK_DEBUG. (_Jv_ThreadSelf): Handle case where system pthread_self() is slow. * java/lang/Class.h (Class): Declare _Jv_AllocPtrFreeObj as friend. * java/lang/Object.h (sync_info): Conditional upon presence of hash synchronization. * java/lang/natObject.cc: Much new code to handle thin locks and hash synchronization. * java/lang/natString.cc (_Jv_AllocString): Allocate pointer-free object if possible. From-SVN: r42519
2001-05-24 07:40:37 +02:00
#endif /* JV_HASH_SYNCHRONIZATION */
void
_Jv_GCInitializeFinalizers (void (*notifier) (void))
{
GC_finalize_on_demand = 1;
GC_finalizer_notifier = notifier;
}
void
_Jv_GCRegisterDisappearingLink (jobject *objp)
{
// This test helps to ensure that we meet a precondition of
// GC_general_register_disappearing_link, viz. "Obj must be a
// pointer to the first word of an object we allocated."
if (GC_base(*objp))
GC_general_register_disappearing_link ((GC_PTR *) objp, (GC_PTR) *objp);
}
jboolean
_Jv_GCCanReclaimSoftReference (jobject)
{
// For now, always reclaim soft references. FIXME.
return true;
}
lang.c (java_init): Handle flag_indirect_classes. 2006-04-21 Andrew Haley <aph@redhat.com> * lang.c (java_init): Handle flag_indirect_classes. * jvgenmain.c: Use "class$$" instead of "class$". * mangle.c (java_mangle_decl): Accept RECORD_TYPEs sw well as DECLs. (mangle_class_field): Special case "class$$" as well as "class$". * constants.c (build_ref_from_constant_pool): If flag_indirect_classes, generate a ref into the heap. * decl.c (constants_field_decl_node, constants_data_field_decl_node): New. * class.c (build_static_class_ref): New. (build_classdollar_field): Factor out from build_class_ref(). (make_field_value): Handle static fields in heap. (make_class_data): Make sure we get a static ref to class. Make class initializer const if flag_indirect_classes. (register_class): Build a class_ref for initialization if flag_indirect_classes. (emit_indirect_register_classes): New. 2006-04-21 Andrew Haley <aph@redhat.com> * include/execution.h (struct _Jv_CompiledEngine): Define for compiled classes. * java/lang/natClassLoader.cc (_Jv_RegisterClasses): Call _Jv_RegisterLibForGc. (_Jv_RegisterClasses_Counted): Likewise. (_Jv_NewClassFromInitializer): New. (_Jv_RegisterNewClasses): New. * sources.am: Regenerate. * boehm.cc (_Jv_GC_has_static_roots): new. (_Jv_InitGC): Call GC_register_has_static_roots_callback. (filename_node, find_file, _Jv_print_gc_store, new_node, _Jv_GC_has_static_roots, _Jv_RegisterLibForGc): New. * scripts/makemake.tcl: Add -fno-indirect-classes. * Makefile.in: Regenerate. * link.cc (resolve_pool_entry): Allocate constant pool. Allocate fields. From-SVN: r113224
2006-04-24 17:33:16 +02:00
#ifdef HAVE_DLFCN_H
// We keep a store of the filenames of DSOs that need to be
// conservatively scanned by the garbage collector. During collection
// the gc calls _Jv_GC_has_static_roots() to see if the data segment
// of a DSO should be scanned.
typedef struct filename_node
{
char *name;
struct filename_node *link;
} filename_node;
#define FILENAME_STORE_SIZE 17
static filename_node *filename_store[FILENAME_STORE_SIZE];
// Find a filename in filename_store.
static filename_node **
find_file (const char *filename)
{
int index = strlen (filename) % FILENAME_STORE_SIZE;
filename_node **node = &filename_store[index];
while (*node)
{
if (strcmp ((*node)->name, filename) == 0)
return node;
node = &(*node)->link;
}
return node;
}
// Print the store of filenames of DSOs that need collection.
void
_Jv_print_gc_store (void)
{
for (int i = 0; i < FILENAME_STORE_SIZE; i++)
{
filename_node *node = filename_store[i];
while (node)
{
fprintf (stderr, "%s\n", node->name);
node = node->link;
}
}
}
// Create a new node in the store of libraries to collect.
static filename_node *
new_node (const char *filename)
{
filename_node *node = (filename_node*)_Jv_Malloc (sizeof (filename_node));
node->name = (char *)_Jv_Malloc (strlen (filename) + 1);
node->link = NULL;
strcpy (node->name, filename);
return node;
}
// Nonzero if the gc should scan this lib.
static int
_Jv_GC_has_static_roots (const char *filename, void *, size_t)
{
if (filename == NULL || strlen (filename) == 0)
// No filename; better safe than sorry.
return 1;
filename_node **node = find_file (filename);
if (*node)
return 1;
return 0;
}
#endif
// Register the DSO that contains p for collection.
void
_Jv_RegisterLibForGc (const void *p __attribute__ ((__unused__)))
{
#ifdef HAVE_DLFCN_H
Dl_info info;
if (dladdr (const_cast<void *>(p), &info) != 0)
lang.c (java_init): Handle flag_indirect_classes. 2006-04-21 Andrew Haley <aph@redhat.com> * lang.c (java_init): Handle flag_indirect_classes. * jvgenmain.c: Use "class$$" instead of "class$". * mangle.c (java_mangle_decl): Accept RECORD_TYPEs sw well as DECLs. (mangle_class_field): Special case "class$$" as well as "class$". * constants.c (build_ref_from_constant_pool): If flag_indirect_classes, generate a ref into the heap. * decl.c (constants_field_decl_node, constants_data_field_decl_node): New. * class.c (build_static_class_ref): New. (build_classdollar_field): Factor out from build_class_ref(). (make_field_value): Handle static fields in heap. (make_class_data): Make sure we get a static ref to class. Make class initializer const if flag_indirect_classes. (register_class): Build a class_ref for initialization if flag_indirect_classes. (emit_indirect_register_classes): New. 2006-04-21 Andrew Haley <aph@redhat.com> * include/execution.h (struct _Jv_CompiledEngine): Define for compiled classes. * java/lang/natClassLoader.cc (_Jv_RegisterClasses): Call _Jv_RegisterLibForGc. (_Jv_RegisterClasses_Counted): Likewise. (_Jv_NewClassFromInitializer): New. (_Jv_RegisterNewClasses): New. * sources.am: Regenerate. * boehm.cc (_Jv_GC_has_static_roots): new. (_Jv_InitGC): Call GC_register_has_static_roots_callback. (filename_node, find_file, _Jv_print_gc_store, new_node, _Jv_GC_has_static_roots, _Jv_RegisterLibForGc): New. * scripts/makemake.tcl: Add -fno-indirect-classes. * Makefile.in: Regenerate. * link.cc (resolve_pool_entry): Allocate constant pool. Allocate fields. From-SVN: r113224
2006-04-24 17:33:16 +02:00
{
filename_node **node = find_file (info.dli_fname);
if (! *node)
*node = new_node (info.dli_fname);
}
#endif
}