/* * Copyright (c) 1999, 2007, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ class StubAssembler; // The Runtime1 holds all assembly stubs and VM // runtime routines needed by code code generated // by the Compiler1. #define RUNTIME1_STUBS(stub, last_entry) \ stub(dtrace_object_alloc) \ stub(unwind_exception) \ stub(forward_exception) \ stub(throw_range_check_failed) /* throws ArrayIndexOutOfBoundsException */ \ stub(throw_index_exception) /* throws IndexOutOfBoundsException */ \ stub(throw_div0_exception) \ stub(throw_null_pointer_exception) \ stub(register_finalizer) \ stub(new_instance) \ stub(fast_new_instance) \ stub(fast_new_instance_init_check) \ stub(new_type_array) \ stub(new_object_array) \ stub(new_multi_array) \ stub(handle_exception_nofpu) /* optimized version that does not preserve fpu registers */ \ stub(handle_exception) \ stub(throw_array_store_exception) \ stub(throw_class_cast_exception) \ stub(throw_incompatible_class_change_error) \ stub(slow_subtype_check) \ stub(monitorenter) \ stub(monitorenter_nofpu) /* optimized version that does not preserve fpu registers */ \ stub(monitorexit) \ stub(monitorexit_nofpu) /* optimized version that does not preserve fpu registers */ \ stub(access_field_patching) \ stub(load_klass_patching) \ stub(jvmti_exception_throw) \ stub(g1_pre_barrier_slow) \ stub(g1_post_barrier_slow) \ stub(fpu2long_stub) \ stub(counter_overflow) \ last_entry(number_of_ids) #define DECLARE_STUB_ID(x) x ## _id , #define DECLARE_LAST_STUB_ID(x) x #define STUB_NAME(x) #x " Runtime1 stub", #define LAST_STUB_NAME(x) #x " Runtime1 stub" class Runtime1: public AllStatic { friend class VMStructs; friend class ArrayCopyStub; public: enum StubID { RUNTIME1_STUBS(DECLARE_STUB_ID, DECLARE_LAST_STUB_ID) }; // statistics #ifndef PRODUCT static int _resolve_invoke_cnt; static int _handle_wrong_method_cnt; static int _ic_miss_cnt; static int _generic_arraycopy_cnt; static int _primitive_arraycopy_cnt; static int _oop_arraycopy_cnt; static int _arraycopy_slowcase_cnt; static int _new_type_array_slowcase_cnt; static int _new_object_array_slowcase_cnt; static int _new_instance_slowcase_cnt; static int _new_multi_array_slowcase_cnt; static int _monitorenter_slowcase_cnt; static int _monitorexit_slowcase_cnt; static int _patch_code_slowcase_cnt; static int _throw_range_check_exception_count; static int _throw_index_exception_count; static int _throw_div0_exception_count; static int _throw_null_pointer_exception_count; static int _throw_class_cast_exception_count; static int _throw_incompatible_class_change_error_count; static int _throw_array_store_exception_count; static int _throw_count; #endif private: static CodeBlob* _blobs[number_of_ids]; static const char* _blob_names[]; // stub generation static void generate_blob_for(BufferBlob* blob, StubID id); static OopMapSet* generate_code_for(StubID id, StubAssembler* masm); static OopMapSet* generate_exception_throw(StubAssembler* sasm, address target, bool has_argument); static void generate_handle_exception(StubAssembler *sasm, OopMapSet* oop_maps, OopMap* oop_map, bool ignore_fpu_registers = false); static void generate_unwind_exception(StubAssembler *sasm); static OopMapSet* generate_patching(StubAssembler* sasm, address target); static OopMapSet* generate_stub_call(StubAssembler* sasm, Register result, address entry, Register arg1 = noreg, Register arg2 = noreg, Register arg3 = noreg); // runtime entry points static void new_instance (JavaThread* thread, klassOopDesc* klass); static void new_type_array (JavaThread* thread, klassOopDesc* klass, jint length); static void new_object_array(JavaThread* thread, klassOopDesc* klass, jint length); static void new_multi_array (JavaThread* thread, klassOopDesc* klass, int rank, jint* dims); #ifdef TIERED static void counter_overflow(JavaThread* thread, int bci); #endif // TIERED static void unimplemented_entry (JavaThread* thread, StubID id); static address exception_handler_for_pc(JavaThread* thread); static void post_jvmti_exception_throw(JavaThread* thread); static void throw_range_check_exception(JavaThread* thread, int index); static void throw_index_exception(JavaThread* thread, int index); static void throw_div0_exception(JavaThread* thread); static void throw_null_pointer_exception(JavaThread* thread); static void throw_class_cast_exception(JavaThread* thread, oopDesc* obect); static void throw_incompatible_class_change_error(JavaThread* thread); static void throw_array_store_exception(JavaThread* thread); static void monitorenter(JavaThread* thread, oopDesc* obj, BasicObjectLock* lock); static void monitorexit (JavaThread* thread, BasicObjectLock* lock); static int access_field_patching(JavaThread* thread); static int move_klass_patching(JavaThread* thread); static void patch_code(JavaThread* thread, StubID stub_id); public: // initialization static void initialize(BufferBlob* blob); static void initialize_pd(); // stubs static CodeBlob* blob_for (StubID id); static address entry_for(StubID id) { return blob_for(id)->instructions_begin(); } static const char* name_for (StubID id); static const char* name_for_address(address entry); // method tracing static void trace_block_entry(jint block_id); #ifndef PRODUCT static address throw_count_address() { return (address)&_throw_count; } #endif // directly accessible leaf routine static int arraycopy(oopDesc* src, int src_pos, oopDesc* dst, int dst_pos, int length); static void primitive_arraycopy(HeapWord* src, HeapWord* dst, int length); static void oop_arraycopy(HeapWord* src, HeapWord* dst, int length); static void print_statistics() PRODUCT_RETURN; };