| /* |
| * Copyright 1999-2007 Sun Microsystems, Inc. All Rights Reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| * |
| */ |
| |
| 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(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; |
| private: |
| static int desired_max_code_buffer_size() { |
| return (int) NMethodSizeLimit; // default 256K or 512K |
| } |
| static int desired_max_constant_size() { |
| return (int) NMethodSizeLimit / 10; // about 25K |
| } |
| |
| // Note: This buffers is allocated once at startup since allocation |
| // for each compilation seems to be too expensive (at least on Intel |
| // win32). |
| static BufferBlob* _buffer_blob; |
| |
| 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 bool _is_initialized; |
| static CodeBlob* _blobs[number_of_ids]; |
| static const char* _blob_names[]; |
| |
| // stub generation |
| static void generate_blob_for(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: |
| static BufferBlob* get_buffer_blob(); |
| static void setup_code_buffer(CodeBuffer* cb, int call_stub_estimate); |
| |
| // initialization |
| static bool is_initialized() { return _is_initialized; } |
| static void initialize(); |
| 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; |
| }; |