| /* |
| * Copyright (c) 2016, 2017, Oracle and/or its affiliates. All rights reserved. |
| * Copyright (c) 2016 SAP SE. 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. |
| * |
| */ |
| |
| #include "precompiled.hpp" |
| #include "c1/c1_Defs.hpp" |
| #include "c1/c1_MacroAssembler.hpp" |
| #include "c1/c1_Runtime1.hpp" |
| #include "interpreter/interpreter.hpp" |
| #include "nativeInst_s390.hpp" |
| #include "oops/compiledICHolder.hpp" |
| #include "oops/oop.inline.hpp" |
| #include "prims/jvmtiExport.hpp" |
| #include "register_s390.hpp" |
| #include "runtime/sharedRuntime.hpp" |
| #include "runtime/signature.hpp" |
| #include "runtime/vframeArray.hpp" |
| #include "utilities/macros.hpp" |
| #include "vmreg_s390.inline.hpp" |
| #include "registerSaver_s390.hpp" |
| #if INCLUDE_ALL_GCS |
| #include "gc/g1/g1SATBCardTableModRefBS.hpp" |
| #endif |
| |
| // Implementation of StubAssembler |
| |
| int StubAssembler::call_RT(Register oop_result1, Register metadata_result, address entry_point, int number_of_arguments) { |
| set_num_rt_args(0); // Nothing on stack. |
| assert(!(oop_result1->is_valid() || metadata_result->is_valid()) || oop_result1 != metadata_result, "registers must be different"); |
| |
| // We cannot trust that code generated by the C++ compiler saves R14 |
| // to z_abi_160.return_pc, because sometimes it spills R14 using stmg at |
| // z_abi_160.gpr14 (e.g. InterpreterRuntime::_new()). |
| // Therefore we load the PC into Z_R1_scratch and let set_last_Java_frame() save |
| // it into the frame anchor. |
| address pc = get_PC(Z_R1_scratch); |
| int call_offset = (int)(pc - addr_at(0)); |
| set_last_Java_frame(Z_SP, Z_R1_scratch); |
| |
| // ARG1 must hold thread address. |
| z_lgr(Z_ARG1, Z_thread); |
| |
| address return_pc = NULL; |
| align_call_far_patchable(this->pc()); |
| return_pc = call_c_opt(entry_point); |
| assert(return_pc != NULL, "const section overflow"); |
| |
| reset_last_Java_frame(); |
| |
| // Check for pending exceptions. |
| { |
| load_and_test_long(Z_R0_scratch, Address(Z_thread, Thread::pending_exception_offset())); |
| |
| // This used to conditionally jump to forward_exception however it is |
| // possible if we relocate that the branch will not reach. So we must jump |
| // around so we can always reach. |
| |
| Label ok; |
| z_bre(ok); // Bcondequal is the same as bcondZero. |
| |
| // exception pending => forward to exception handler |
| |
| // Make sure that the vm_results are cleared. |
| if (oop_result1->is_valid()) { |
| clear_mem(Address(Z_thread, JavaThread::vm_result_offset()), sizeof(jlong)); |
| } |
| if (metadata_result->is_valid()) { |
| clear_mem(Address(Z_thread, JavaThread::vm_result_2_offset()), sizeof(jlong)); |
| } |
| if (frame_size() == no_frame_size) { |
| // Pop the stub frame. |
| pop_frame(); |
| restore_return_pc(); |
| load_const_optimized(Z_R1, StubRoutines::forward_exception_entry()); |
| z_br(Z_R1); |
| } else if (_stub_id == Runtime1::forward_exception_id) { |
| should_not_reach_here(); |
| } else { |
| load_const_optimized(Z_R1, Runtime1::entry_for (Runtime1::forward_exception_id)); |
| z_br(Z_R1); |
| } |
| |
| bind(ok); |
| } |
| |
| // Get oop results if there are any and reset the values in the thread. |
| if (oop_result1->is_valid()) { |
| get_vm_result(oop_result1); |
| } |
| if (metadata_result->is_valid()) { |
| get_vm_result_2(metadata_result); |
| } |
| |
| return call_offset; |
| } |
| |
| |
| int StubAssembler::call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1) { |
| // Z_ARG1 is reserved for the thread. |
| lgr_if_needed(Z_ARG2, arg1); |
| return call_RT(oop_result1, metadata_result, entry, 1); |
| } |
| |
| |
| int StubAssembler::call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1, Register arg2) { |
| // Z_ARG1 is reserved for the thread. |
| lgr_if_needed(Z_ARG2, arg1); |
| assert(arg2 != Z_ARG2, "smashed argument"); |
| lgr_if_needed(Z_ARG3, arg2); |
| return call_RT(oop_result1, metadata_result, entry, 2); |
| } |
| |
| |
| int StubAssembler::call_RT(Register oop_result1, Register metadata_result, address entry, Register arg1, Register arg2, Register arg3) { |
| // Z_ARG1 is reserved for the thread. |
| lgr_if_needed(Z_ARG2, arg1); |
| assert(arg2 != Z_ARG2, "smashed argument"); |
| lgr_if_needed(Z_ARG3, arg2); |
| assert(arg3 != Z_ARG3, "smashed argument"); |
| lgr_if_needed(Z_ARG4, arg3); |
| return call_RT(oop_result1, metadata_result, entry, 3); |
| } |
| |
| |
| // Implementation of Runtime1 |
| |
| #define __ sasm-> |
| |
| #ifndef PRODUCT |
| #undef __ |
| #define __ (Verbose ? (sasm->block_comment(FILE_AND_LINE),sasm):sasm)-> |
| #endif // !PRODUCT |
| |
| #define BLOCK_COMMENT(str) if (PrintAssembly) __ block_comment(str) |
| #define BIND(label) bind(label); BLOCK_COMMENT(#label ":") |
| |
| static OopMap* generate_oop_map(StubAssembler* sasm) { |
| RegisterSaver::RegisterSet reg_set = RegisterSaver::all_registers; |
| int frame_size_in_slots = |
| RegisterSaver::live_reg_frame_size(reg_set) / VMRegImpl::stack_slot_size; |
| sasm->set_frame_size(frame_size_in_slots / VMRegImpl::slots_per_word); |
| return RegisterSaver::generate_oop_map(sasm, reg_set); |
| } |
| |
| static OopMap* save_live_registers(StubAssembler* sasm, bool save_fpu_registers = true, Register return_pc = Z_R14) { |
| __ block_comment("save_live_registers"); |
| RegisterSaver::RegisterSet reg_set = |
| save_fpu_registers ? RegisterSaver::all_registers : RegisterSaver::all_integer_registers; |
| int frame_size_in_slots = |
| RegisterSaver::live_reg_frame_size(reg_set) / VMRegImpl::stack_slot_size; |
| sasm->set_frame_size(frame_size_in_slots / VMRegImpl::slots_per_word); |
| return RegisterSaver::save_live_registers(sasm, reg_set, return_pc); |
| } |
| |
| static OopMap* save_live_registers_except_r2(StubAssembler* sasm, bool save_fpu_registers = true) { |
| if (!save_fpu_registers) { |
| __ unimplemented(FILE_AND_LINE); |
| } |
| __ block_comment("save_live_registers"); |
| RegisterSaver::RegisterSet reg_set = RegisterSaver::all_registers_except_r2; |
| int frame_size_in_slots = |
| RegisterSaver::live_reg_frame_size(reg_set) / VMRegImpl::stack_slot_size; |
| sasm->set_frame_size(frame_size_in_slots / VMRegImpl::slots_per_word); |
| return RegisterSaver::save_live_registers(sasm, reg_set); |
| } |
| |
| static OopMap* save_volatile_registers(StubAssembler* sasm, Register return_pc = Z_R14) { |
| __ block_comment("save_volatile_registers"); |
| RegisterSaver::RegisterSet reg_set = RegisterSaver::all_volatile_registers; |
| int frame_size_in_slots = |
| RegisterSaver::live_reg_frame_size(reg_set) / VMRegImpl::stack_slot_size; |
| sasm->set_frame_size(frame_size_in_slots / VMRegImpl::slots_per_word); |
| return RegisterSaver::save_live_registers(sasm, reg_set, return_pc); |
| } |
| |
| static void restore_live_registers(StubAssembler* sasm, bool restore_fpu_registers = true) { |
| __ block_comment("restore_live_registers"); |
| RegisterSaver::RegisterSet reg_set = |
| restore_fpu_registers ? RegisterSaver::all_registers : RegisterSaver::all_integer_registers; |
| RegisterSaver::restore_live_registers(sasm, reg_set); |
| } |
| |
| static void restore_live_registers_except_r2(StubAssembler* sasm, bool restore_fpu_registers = true) { |
| if (!restore_fpu_registers) { |
| __ unimplemented(FILE_AND_LINE); |
| } |
| __ block_comment("restore_live_registers_except_r2"); |
| RegisterSaver::restore_live_registers(sasm, RegisterSaver::all_registers_except_r2); |
| } |
| |
| static void restore_volatile_registers(StubAssembler* sasm) { |
| __ block_comment("restore_volatile_registers"); |
| RegisterSaver::RegisterSet reg_set = RegisterSaver::all_volatile_registers; |
| RegisterSaver::restore_live_registers(sasm, reg_set); |
| } |
| |
| void Runtime1::initialize_pd() { |
| // Nothing to do. |
| } |
| |
| OopMapSet* Runtime1::generate_exception_throw(StubAssembler* sasm, address target, bool has_argument) { |
| // Make a frame and preserve the caller's caller-save registers. |
| OopMap* oop_map = save_live_registers(sasm); |
| int call_offset; |
| if (!has_argument) { |
| call_offset = __ call_RT(noreg, noreg, target); |
| } else { |
| call_offset = __ call_RT(noreg, noreg, target, Z_R1_scratch, Z_R0_scratch); |
| } |
| OopMapSet* oop_maps = new OopMapSet(); |
| oop_maps->add_gc_map(call_offset, oop_map); |
| |
| __ should_not_reach_here(); |
| return oop_maps; |
| } |
| |
| void Runtime1::generate_unwind_exception(StubAssembler *sasm) { |
| // Incoming parameters: Z_EXC_OOP and Z_EXC_PC. |
| // Keep copies in callee-saved registers during runtime call. |
| const Register exception_oop_callee_saved = Z_R11; |
| const Register exception_pc_callee_saved = Z_R12; |
| // Other registers used in this stub. |
| const Register handler_addr = Z_R4; |
| |
| // Verify that only exception_oop, is valid at this time. |
| __ invalidate_registers(Z_EXC_OOP, Z_EXC_PC); |
| |
| // Check that fields in JavaThread for exception oop and issuing pc are set. |
| __ asm_assert_mem8_is_zero(in_bytes(JavaThread::exception_oop_offset()), Z_thread, "exception oop already set : " FILE_AND_LINE, 0); |
| __ asm_assert_mem8_is_zero(in_bytes(JavaThread::exception_pc_offset()), Z_thread, "exception pc already set : " FILE_AND_LINE, 0); |
| |
| // Save exception_oop and pc in callee-saved register to preserve it |
| // during runtime calls. |
| __ verify_not_null_oop(Z_EXC_OOP); |
| __ lgr_if_needed(exception_oop_callee_saved, Z_EXC_OOP); |
| __ lgr_if_needed(exception_pc_callee_saved, Z_EXC_PC); |
| |
| __ push_frame_abi160(0); // Runtime code needs the z_abi_160. |
| |
| // Search the exception handler address of the caller (using the return address). |
| __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::exception_handler_for_return_address), Z_thread, Z_EXC_PC); |
| // Z_RET(Z_R2): exception handler address of the caller. |
| |
| __ pop_frame(); |
| |
| __ invalidate_registers(exception_oop_callee_saved, exception_pc_callee_saved, Z_RET); |
| |
| // Move result of call into correct register. |
| __ lgr_if_needed(handler_addr, Z_RET); |
| |
| // Restore exception oop and pc to Z_EXC_OOP and Z_EXC_PC (required convention of exception handler). |
| __ lgr_if_needed(Z_EXC_OOP, exception_oop_callee_saved); |
| __ lgr_if_needed(Z_EXC_PC, exception_pc_callee_saved); |
| |
| // Verify that there is really a valid exception in Z_EXC_OOP. |
| __ verify_not_null_oop(Z_EXC_OOP); |
| |
| __ z_br(handler_addr); // Jump to exception handler. |
| } |
| |
| OopMapSet* Runtime1::generate_patching(StubAssembler* sasm, address target) { |
| // Make a frame and preserve the caller's caller-save registers. |
| OopMap* oop_map = save_live_registers(sasm); |
| |
| // Call the runtime patching routine, returns non-zero if nmethod got deopted. |
| int call_offset = __ call_RT(noreg, noreg, target); |
| OopMapSet* oop_maps = new OopMapSet(); |
| oop_maps->add_gc_map(call_offset, oop_map); |
| |
| // Re-execute the patched instruction or, if the nmethod was |
| // deoptmized, return to the deoptimization handler entry that will |
| // cause re-execution of the current bytecode. |
| DeoptimizationBlob* deopt_blob = SharedRuntime::deopt_blob(); |
| assert(deopt_blob != NULL, "deoptimization blob must have been created"); |
| |
| __ z_ltr(Z_RET, Z_RET); // return value == 0 |
| |
| restore_live_registers(sasm); |
| |
| __ z_bcr(Assembler::bcondZero, Z_R14); |
| |
| // Return to the deoptimization handler entry for unpacking and |
| // rexecute if we simply returned then we'd deopt as if any call we |
| // patched had just returned. |
| AddressLiteral dest(deopt_blob->unpack_with_reexecution()); |
| __ load_const_optimized(Z_R1_scratch, dest); |
| __ z_br(Z_R1_scratch); |
| |
| return oop_maps; |
| } |
| |
| OopMapSet* Runtime1::generate_code_for(StubID id, StubAssembler* sasm) { |
| |
| // for better readability |
| const bool must_gc_arguments = true; |
| const bool dont_gc_arguments = false; |
| |
| // Default value; overwritten for some optimized stubs that are |
| // called from methods that do not use the fpu. |
| bool save_fpu_registers = true; |
| |
| // Stub code and info for the different stubs. |
| OopMapSet* oop_maps = NULL; |
| switch (id) { |
| case forward_exception_id: |
| { |
| oop_maps = generate_handle_exception(id, sasm); |
| // will not return |
| } |
| break; |
| |
| case new_instance_id: |
| case fast_new_instance_id: |
| case fast_new_instance_init_check_id: |
| { |
| Register klass = Z_R11; // Incoming |
| Register obj = Z_R2; // Result |
| |
| if (id == new_instance_id) { |
| __ set_info("new_instance", dont_gc_arguments); |
| } else if (id == fast_new_instance_id) { |
| __ set_info("fast new_instance", dont_gc_arguments); |
| } else { |
| assert(id == fast_new_instance_init_check_id, "bad StubID"); |
| __ set_info("fast new_instance init check", dont_gc_arguments); |
| } |
| |
| if ((id == fast_new_instance_id || id == fast_new_instance_init_check_id) && |
| UseTLAB && FastTLABRefill) { |
| // Sapjvm: must call RT to generate allocation events. |
| } |
| |
| OopMap* map = save_live_registers_except_r2(sasm); |
| int call_offset = __ call_RT(obj, noreg, CAST_FROM_FN_PTR(address, new_instance), klass); |
| oop_maps = new OopMapSet(); |
| oop_maps->add_gc_map(call_offset, map); |
| restore_live_registers_except_r2(sasm); |
| |
| __ verify_oop(obj); |
| __ z_br(Z_R14); |
| } |
| break; |
| |
| case counter_overflow_id: |
| { |
| // Arguments : |
| // bci : stack param 0 |
| // method : stack param 1 |
| // |
| Register bci = Z_ARG2, method = Z_ARG3; |
| // frame size in bytes |
| OopMap* map = save_live_registers(sasm); |
| const int frame_size = sasm->frame_size() * VMRegImpl::slots_per_word * VMRegImpl::stack_slot_size; |
| __ z_lg(bci, 0*BytesPerWord + FrameMap::first_available_sp_in_frame + frame_size, Z_SP); |
| __ z_lg(method, 1*BytesPerWord + FrameMap::first_available_sp_in_frame + frame_size, Z_SP); |
| int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, counter_overflow), bci, method); |
| oop_maps = new OopMapSet(); |
| oop_maps->add_gc_map(call_offset, map); |
| restore_live_registers(sasm); |
| __ z_br(Z_R14); |
| } |
| break; |
| case new_type_array_id: |
| case new_object_array_id: |
| { |
| Register length = Z_R13; // Incoming |
| Register klass = Z_R11; // Incoming |
| Register obj = Z_R2; // Result |
| |
| if (id == new_type_array_id) { |
| __ set_info("new_type_array", dont_gc_arguments); |
| } else { |
| __ set_info("new_object_array", dont_gc_arguments); |
| } |
| |
| #ifdef ASSERT |
| // Assert object type is really an array of the proper kind. |
| { |
| NearLabel ok; |
| Register t0 = obj; |
| __ mem2reg_opt(t0, Address(klass, Klass::layout_helper_offset()), false); |
| __ z_sra(t0, Klass::_lh_array_tag_shift); |
| int tag = ((id == new_type_array_id) |
| ? Klass::_lh_array_tag_type_value |
| : Klass::_lh_array_tag_obj_value); |
| __ compare32_and_branch(t0, tag, Assembler::bcondEqual, ok); |
| __ stop("assert(is an array klass)"); |
| __ should_not_reach_here(); |
| __ bind(ok); |
| } |
| #endif // ASSERT |
| |
| if (UseTLAB && FastTLABRefill) { |
| // sapjvm: must call RT to generate allocation events. |
| } |
| |
| OopMap* map = save_live_registers_except_r2(sasm); |
| int call_offset; |
| if (id == new_type_array_id) { |
| call_offset = __ call_RT(obj, noreg, CAST_FROM_FN_PTR(address, new_type_array), klass, length); |
| } else { |
| call_offset = __ call_RT(obj, noreg, CAST_FROM_FN_PTR(address, new_object_array), klass, length); |
| } |
| |
| oop_maps = new OopMapSet(); |
| oop_maps->add_gc_map(call_offset, map); |
| restore_live_registers_except_r2(sasm); |
| |
| __ verify_oop(obj); |
| __ z_br(Z_R14); |
| } |
| break; |
| |
| case new_multi_array_id: |
| { __ set_info("new_multi_array", dont_gc_arguments); |
| // Z_R3,: klass |
| // Z_R4,: rank |
| // Z_R5: address of 1st dimension |
| OopMap* map = save_live_registers(sasm); |
| int call_offset = __ call_RT(Z_R2, noreg, CAST_FROM_FN_PTR(address, new_multi_array), Z_R3, Z_R4, Z_R5); |
| |
| oop_maps = new OopMapSet(); |
| oop_maps->add_gc_map(call_offset, map); |
| restore_live_registers_except_r2(sasm); |
| |
| // Z_R2,: new multi array |
| __ verify_oop(Z_R2); |
| __ z_br(Z_R14); |
| } |
| break; |
| |
| case register_finalizer_id: |
| { |
| __ set_info("register_finalizer", dont_gc_arguments); |
| |
| // Load the klass and check the has finalizer flag. |
| Register klass = Z_ARG2; |
| __ load_klass(klass, Z_ARG1); |
| __ testbit(Address(klass, Klass::access_flags_offset()), exact_log2(JVM_ACC_HAS_FINALIZER)); |
| __ z_bcr(Assembler::bcondAllZero, Z_R14); // Return if bit is not set. |
| |
| OopMap* oop_map = save_live_registers(sasm); |
| int call_offset = __ call_RT(noreg, noreg, |
| CAST_FROM_FN_PTR(address, SharedRuntime::register_finalizer), Z_ARG1); |
| oop_maps = new OopMapSet(); |
| oop_maps->add_gc_map(call_offset, oop_map); |
| |
| // Now restore all the live registers. |
| restore_live_registers(sasm); |
| |
| __ z_br(Z_R14); |
| } |
| break; |
| |
| case throw_range_check_failed_id: |
| { __ set_info("range_check_failed", dont_gc_arguments); |
| oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_range_check_exception), true); |
| } |
| break; |
| |
| case throw_index_exception_id: |
| { __ set_info("index_range_check_failed", dont_gc_arguments); |
| oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_index_exception), true); |
| } |
| break; |
| case throw_div0_exception_id: |
| { __ set_info("throw_div0_exception", dont_gc_arguments); |
| oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_div0_exception), false); |
| } |
| break; |
| case throw_null_pointer_exception_id: |
| { __ set_info("throw_null_pointer_exception", dont_gc_arguments); |
| oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_null_pointer_exception), false); |
| } |
| break; |
| case handle_exception_nofpu_id: |
| case handle_exception_id: |
| { __ set_info("handle_exception", dont_gc_arguments); |
| oop_maps = generate_handle_exception(id, sasm); |
| } |
| break; |
| case handle_exception_from_callee_id: |
| { __ set_info("handle_exception_from_callee", dont_gc_arguments); |
| oop_maps = generate_handle_exception(id, sasm); |
| } |
| break; |
| case unwind_exception_id: |
| { __ set_info("unwind_exception", dont_gc_arguments); |
| // Note: no stubframe since we are about to leave the current |
| // activation and we are calling a leaf VM function only. |
| generate_unwind_exception(sasm); |
| } |
| break; |
| case throw_array_store_exception_id: |
| { __ set_info("throw_array_store_exception", dont_gc_arguments); |
| oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_array_store_exception), true); |
| } |
| break; |
| case throw_class_cast_exception_id: |
| { // Z_R1_scratch: object |
| __ set_info("throw_class_cast_exception", dont_gc_arguments); |
| oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_class_cast_exception), true); |
| } |
| break; |
| case throw_incompatible_class_change_error_id: |
| { __ set_info("throw_incompatible_class_cast_exception", dont_gc_arguments); |
| oop_maps = generate_exception_throw(sasm, CAST_FROM_FN_PTR(address, throw_incompatible_class_change_error), false); |
| } |
| break; |
| case slow_subtype_check_id: |
| { |
| // Arguments : |
| // sub : stack param 0 |
| // super: stack param 1 |
| // raddr: Z_R14, blown by call |
| // |
| // Result : condition code 0 for match (bcondEqual will be true), |
| // condition code 2 for miss (bcondNotEqual will be true) |
| NearLabel miss; |
| const Register Rsubklass = Z_ARG2; // sub |
| const Register Rsuperklass = Z_ARG3; // super |
| |
| // No args, but tmp registers that are killed. |
| const Register Rlength = Z_ARG4; // cache array length |
| const Register Rarray_ptr = Z_ARG5; // Current value from cache array. |
| |
| if (UseCompressedOops) { |
| assert(Universe::heap() != NULL, "java heap must be initialized to generate partial_subtype_check stub"); |
| } |
| |
| const int frame_size = 4*BytesPerWord + frame::z_abi_160_size; |
| // Save return pc. This is not necessary, but could be helpful |
| // in the case of crashes. |
| __ save_return_pc(); |
| __ push_frame(frame_size); |
| // Save registers before changing them. |
| int i = 0; |
| __ z_stg(Rsubklass, (i++)*BytesPerWord + frame::z_abi_160_size, Z_SP); |
| __ z_stg(Rsuperklass, (i++)*BytesPerWord + frame::z_abi_160_size, Z_SP); |
| __ z_stg(Rlength, (i++)*BytesPerWord + frame::z_abi_160_size, Z_SP); |
| __ z_stg(Rarray_ptr, (i++)*BytesPerWord + frame::z_abi_160_size, Z_SP); |
| assert(i*BytesPerWord + frame::z_abi_160_size == frame_size, "check"); |
| |
| // Get sub and super from stack. |
| __ z_lg(Rsubklass, 0*BytesPerWord + FrameMap::first_available_sp_in_frame + frame_size, Z_SP); |
| __ z_lg(Rsuperklass, 1*BytesPerWord + FrameMap::first_available_sp_in_frame + frame_size, Z_SP); |
| |
| __ check_klass_subtype_slow_path(Rsubklass, Rsuperklass, Rarray_ptr, Rlength, NULL, &miss); |
| |
| // Match falls through here. |
| i = 0; |
| __ z_lg(Rsubklass, (i++)*BytesPerWord + frame::z_abi_160_size, Z_SP); |
| __ z_lg(Rsuperklass, (i++)*BytesPerWord + frame::z_abi_160_size, Z_SP); |
| __ z_lg(Rlength, (i++)*BytesPerWord + frame::z_abi_160_size, Z_SP); |
| __ z_lg(Rarray_ptr, (i++)*BytesPerWord + frame::z_abi_160_size, Z_SP); |
| assert(i*BytesPerWord + frame::z_abi_160_size == frame_size, "check"); |
| __ pop_frame(); |
| // Return pc is still in R_14. |
| __ clear_reg(Z_R0_scratch); // Zero indicates a match. Set CC 0 (bcondEqual will be true) |
| __ z_br(Z_R14); |
| |
| __ BIND(miss); |
| i = 0; |
| __ z_lg(Rsubklass, (i++)*BytesPerWord + frame::z_abi_160_size, Z_SP); |
| __ z_lg(Rsuperklass, (i++)*BytesPerWord + frame::z_abi_160_size, Z_SP); |
| __ z_lg(Rlength, (i++)*BytesPerWord + frame::z_abi_160_size, Z_SP); |
| __ z_lg(Rarray_ptr, (i++)*BytesPerWord + frame::z_abi_160_size, Z_SP); |
| assert(i*BytesPerWord + frame::z_abi_160_size == frame_size, "check"); |
| __ pop_frame(); |
| // return pc is still in R_14 |
| __ load_const_optimized(Z_R0_scratch, 1); // One indicates a miss. |
| __ z_ltgr(Z_R0_scratch, Z_R0_scratch); // Set CC 2 (bcondNotEqual will be true). |
| __ z_br(Z_R14); |
| } |
| break; |
| case monitorenter_nofpu_id: |
| case monitorenter_id: |
| { // Z_R1_scratch : object |
| // Z_R13 : lock address (see LIRGenerator::syncTempOpr()) |
| __ set_info("monitorenter", dont_gc_arguments); |
| |
| int save_fpu_registers = (id == monitorenter_id); |
| // Make a frame and preserve the caller's caller-save registers. |
| OopMap* oop_map = save_live_registers(sasm, save_fpu_registers); |
| |
| int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, monitorenter), Z_R1_scratch, Z_R13); |
| |
| oop_maps = new OopMapSet(); |
| oop_maps->add_gc_map(call_offset, oop_map); |
| restore_live_registers(sasm, save_fpu_registers); |
| |
| __ z_br(Z_R14); |
| } |
| break; |
| |
| case monitorexit_nofpu_id: |
| case monitorexit_id: |
| { // Z_R1_scratch : lock address |
| // Note: really a leaf routine but must setup last java sp |
| // => Use call_RT for now (speed can be improved by |
| // doing last java sp setup manually). |
| __ set_info("monitorexit", dont_gc_arguments); |
| |
| int save_fpu_registers = (id == monitorexit_id); |
| // Make a frame and preserve the caller's caller-save registers. |
| OopMap* oop_map = save_live_registers(sasm, save_fpu_registers); |
| |
| int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, monitorexit), Z_R1_scratch); |
| |
| oop_maps = new OopMapSet(); |
| oop_maps->add_gc_map(call_offset, oop_map); |
| restore_live_registers(sasm, save_fpu_registers); |
| |
| __ z_br(Z_R14); |
| } |
| break; |
| |
| case deoptimize_id: |
| { // Args: Z_R1_scratch: trap request |
| __ set_info("deoptimize", dont_gc_arguments); |
| Register trap_request = Z_R1_scratch; |
| OopMap* oop_map = save_live_registers(sasm); |
| int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, deoptimize), trap_request); |
| oop_maps = new OopMapSet(); |
| oop_maps->add_gc_map(call_offset, oop_map); |
| restore_live_registers(sasm); |
| DeoptimizationBlob* deopt_blob = SharedRuntime::deopt_blob(); |
| assert(deopt_blob != NULL, "deoptimization blob must have been created"); |
| AddressLiteral dest(deopt_blob->unpack_with_reexecution()); |
| __ load_const_optimized(Z_R1_scratch, dest); |
| __ z_br(Z_R1_scratch); |
| } |
| break; |
| |
| case access_field_patching_id: |
| { __ set_info("access_field_patching", dont_gc_arguments); |
| oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, access_field_patching)); |
| } |
| break; |
| |
| case load_klass_patching_id: |
| { __ set_info("load_klass_patching", dont_gc_arguments); |
| // We should set up register map. |
| oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, move_klass_patching)); |
| } |
| break; |
| |
| case load_mirror_patching_id: |
| { __ set_info("load_mirror_patching", dont_gc_arguments); |
| oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, move_mirror_patching)); |
| } |
| break; |
| |
| case load_appendix_patching_id: |
| { __ set_info("load_appendix_patching", dont_gc_arguments); |
| oop_maps = generate_patching(sasm, CAST_FROM_FN_PTR(address, move_appendix_patching)); |
| } |
| break; |
| #if 0 |
| case dtrace_object_alloc_id: |
| { // rax,: object |
| StubFrame f(sasm, "dtrace_object_alloc", dont_gc_arguments); |
| // We can't gc here so skip the oopmap but make sure that all |
| // the live registers get saved. |
| save_live_registers(sasm, 1); |
| |
| __ NOT_LP64(push(rax)) LP64_ONLY(mov(c_rarg0, rax)); |
| __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc))); |
| NOT_LP64(__ pop(rax)); |
| |
| restore_live_registers(sasm); |
| } |
| break; |
| |
| case fpu2long_stub_id: |
| { |
| // rax, and rdx are destroyed, but should be free since the result is returned there |
| // preserve rsi,ecx |
| __ push(rsi); |
| __ push(rcx); |
| LP64_ONLY(__ push(rdx);) |
| |
| // check for NaN |
| Label return0, do_return, return_min_jlong, do_convert; |
| |
| Address value_high_word(rsp, wordSize + 4); |
| Address value_low_word(rsp, wordSize); |
| Address result_high_word(rsp, 3*wordSize + 4); |
| Address result_low_word(rsp, 3*wordSize); |
| |
| __ subptr(rsp, 32); // more than enough on 32bit |
| __ fst_d(value_low_word); |
| __ movl(rax, value_high_word); |
| __ andl(rax, 0x7ff00000); |
| __ cmpl(rax, 0x7ff00000); |
| __ jcc(Assembler::notEqual, do_convert); |
| __ movl(rax, value_high_word); |
| __ andl(rax, 0xfffff); |
| __ orl(rax, value_low_word); |
| __ jcc(Assembler::notZero, return0); |
| |
| __ bind(do_convert); |
| __ fnstcw(Address(rsp, 0)); |
| __ movzwl(rax, Address(rsp, 0)); |
| __ orl(rax, 0xc00); |
| __ movw(Address(rsp, 2), rax); |
| __ fldcw(Address(rsp, 2)); |
| __ fwait(); |
| __ fistp_d(result_low_word); |
| __ fldcw(Address(rsp, 0)); |
| __ fwait(); |
| // This gets the entire long in rax on 64bit |
| __ movptr(rax, result_low_word); |
| // testing of high bits |
| __ movl(rdx, result_high_word); |
| __ mov(rcx, rax); |
| // What the heck is the point of the next instruction??? |
| __ xorl(rcx, 0x0); |
| __ movl(rsi, 0x80000000); |
| __ xorl(rsi, rdx); |
| __ orl(rcx, rsi); |
| __ jcc(Assembler::notEqual, do_return); |
| __ fldz(); |
| __ fcomp_d(value_low_word); |
| __ fnstsw_ax(); |
| __ testl(rax, 0x4100); // ZF & CF == 0 |
| __ jcc(Assembler::equal, return_min_jlong); |
| // return max_jlong |
| __ mov64(rax, CONST64(0x7fffffffffffffff)); |
| __ jmp(do_return); |
| |
| __ bind(return_min_jlong); |
| __ mov64(rax, UCONST64(0x8000000000000000)); |
| __ jmp(do_return); |
| |
| __ bind(return0); |
| __ fpop(); |
| __ xorptr(rax, rax); |
| |
| __ bind(do_return); |
| __ addptr(rsp, 32); |
| LP64_ONLY(__ pop(rdx);) |
| __ pop(rcx); |
| __ pop(rsi); |
| __ ret(0); |
| } |
| break; |
| #endif // TODO |
| |
| #if INCLUDE_ALL_GCS |
| case g1_pre_barrier_slow_id: |
| { // Z_R1_scratch: previous value of memory |
| |
| BarrierSet* bs = Universe::heap()->barrier_set(); |
| if (bs->kind() != BarrierSet::G1SATBCTLogging) { |
| __ should_not_reach_here(FILE_AND_LINE); |
| break; |
| } |
| |
| __ set_info("g1_pre_barrier_slow_id", dont_gc_arguments); |
| |
| Register pre_val = Z_R1_scratch; |
| Register tmp = Z_R6; // Must be non-volatile because it is used to save pre_val. |
| Register tmp2 = Z_R7; |
| |
| Label refill, restart, marking_not_active; |
| int satb_q_active_byte_offset = |
| in_bytes(JavaThread::satb_mark_queue_offset() + |
| SATBMarkQueue::byte_offset_of_active()); |
| int satb_q_index_byte_offset = |
| in_bytes(JavaThread::satb_mark_queue_offset() + |
| SATBMarkQueue::byte_offset_of_index()); |
| int satb_q_buf_byte_offset = |
| in_bytes(JavaThread::satb_mark_queue_offset() + |
| SATBMarkQueue::byte_offset_of_buf()); |
| |
| // Save tmp registers (see assertion in G1PreBarrierStub::emit_code()). |
| __ z_stg(tmp, 0*BytesPerWord + FrameMap::first_available_sp_in_frame, Z_SP); |
| __ z_stg(tmp2, 1*BytesPerWord + FrameMap::first_available_sp_in_frame, Z_SP); |
| |
| // Is marking still active? |
| if (in_bytes(SATBMarkQueue::byte_width_of_active()) == 4) { |
| __ load_and_test_int(tmp, Address(Z_thread, satb_q_active_byte_offset)); |
| } else { |
| assert(in_bytes(SATBMarkQueue::byte_width_of_active()) == 1, "Assumption"); |
| __ load_and_test_byte(tmp, Address(Z_thread, satb_q_active_byte_offset)); |
| } |
| __ z_bre(marking_not_active); // Activity indicator is zero, so there is no marking going on currently. |
| |
| __ bind(restart); |
| // Load the index into the SATB buffer. SATBMarkQueue::_index is a |
| // size_t so ld_ptr is appropriate. |
| __ z_ltg(tmp, satb_q_index_byte_offset, Z_R0, Z_thread); |
| |
| // index == 0? |
| __ z_brz(refill); |
| |
| __ z_lg(tmp2, satb_q_buf_byte_offset, Z_thread); |
| __ add2reg(tmp, -oopSize); |
| |
| __ z_stg(pre_val, 0, tmp, tmp2); // [_buf + index] := <address_of_card> |
| __ z_stg(tmp, satb_q_index_byte_offset, Z_thread); |
| |
| __ bind(marking_not_active); |
| // Restore tmp registers (see assertion in G1PreBarrierStub::emit_code()). |
| __ z_lg(tmp, 0*BytesPerWord + FrameMap::first_available_sp_in_frame, Z_SP); |
| __ z_lg(tmp2, 1*BytesPerWord + FrameMap::first_available_sp_in_frame, Z_SP); |
| __ z_br(Z_R14); |
| |
| __ bind(refill); |
| save_volatile_registers(sasm); |
| __ z_lgr(tmp, pre_val); // save pre_val |
| __ call_VM_leaf(CAST_FROM_FN_PTR(address, SATBMarkQueueSet::handle_zero_index_for_thread), |
| Z_thread); |
| __ z_lgr(pre_val, tmp); // restore pre_val |
| restore_volatile_registers(sasm); |
| __ z_bru(restart); |
| } |
| break; |
| |
| case g1_post_barrier_slow_id: |
| { // Z_R1_scratch: oop address, address of updated memory slot |
| BarrierSet* bs = Universe::heap()->barrier_set(); |
| if (bs->kind() != BarrierSet::G1SATBCTLogging) { |
| __ should_not_reach_here(FILE_AND_LINE); |
| break; |
| } |
| |
| __ set_info("g1_post_barrier_slow_id", dont_gc_arguments); |
| |
| Register addr_oop = Z_R1_scratch; |
| Register addr_card = Z_R1_scratch; |
| Register r1 = Z_R6; // Must be saved/restored. |
| Register r2 = Z_R7; // Must be saved/restored. |
| Register cardtable = r1; // Must be non-volatile, because it is used to save addr_card. |
| jbyte* byte_map_base = ((CardTableModRefBS*)bs)->byte_map_base; |
| |
| // Save registers used below (see assertion in G1PreBarrierStub::emit_code()). |
| __ z_stg(r1, 0*BytesPerWord + FrameMap::first_available_sp_in_frame, Z_SP); |
| |
| Label not_already_dirty, restart, refill, young_card; |
| |
| // Calculate address of card corresponding to the updated oop slot. |
| AddressLiteral rs(byte_map_base); |
| __ z_srlg(addr_card, addr_oop, CardTableModRefBS::card_shift); |
| addr_oop = noreg; // dead now |
| __ load_const_optimized(cardtable, rs); // cardtable := <card table base> |
| __ z_agr(addr_card, cardtable); // addr_card := addr_oop>>card_shift + cardtable |
| |
| __ z_cli(0, addr_card, (int)G1SATBCardTableModRefBS::g1_young_card_val()); |
| __ z_bre(young_card); |
| |
| __ z_sync(); // Required to support concurrent cleaning. |
| |
| __ z_cli(0, addr_card, (int)CardTableModRefBS::dirty_card_val()); |
| __ z_brne(not_already_dirty); |
| |
| __ bind(young_card); |
| // We didn't take the branch, so we're already dirty: restore |
| // used registers and return. |
| __ z_lg(r1, 0*BytesPerWord + FrameMap::first_available_sp_in_frame, Z_SP); |
| __ z_br(Z_R14); |
| |
| // Not dirty. |
| __ bind(not_already_dirty); |
| |
| // First, dirty it: [addr_card] := 0 |
| __ z_mvi(0, addr_card, CardTableModRefBS::dirty_card_val()); |
| |
| Register idx = cardtable; // Must be non-volatile, because it is used to save addr_card. |
| Register buf = r2; |
| cardtable = noreg; // now dead |
| |
| // Save registers used below (see assertion in G1PreBarrierStub::emit_code()). |
| __ z_stg(r2, 1*BytesPerWord + FrameMap::first_available_sp_in_frame, Z_SP); |
| |
| ByteSize dirty_card_q_index_byte_offset = |
| JavaThread::dirty_card_queue_offset() + DirtyCardQueue::byte_offset_of_index(); |
| ByteSize dirty_card_q_buf_byte_offset = |
| JavaThread::dirty_card_queue_offset() + DirtyCardQueue::byte_offset_of_buf(); |
| |
| __ bind(restart); |
| |
| // Get the index into the update buffer. DirtyCardQueue::_index is |
| // a size_t so z_ltg is appropriate here. |
| __ z_ltg(idx, Address(Z_thread, dirty_card_q_index_byte_offset)); |
| |
| // index == 0? |
| __ z_brz(refill); |
| |
| __ z_lg(buf, Address(Z_thread, dirty_card_q_buf_byte_offset)); |
| __ add2reg(idx, -oopSize); |
| |
| __ z_stg(addr_card, 0, idx, buf); // [_buf + index] := <address_of_card> |
| __ z_stg(idx, Address(Z_thread, dirty_card_q_index_byte_offset)); |
| // Restore killed registers and return. |
| __ z_lg(r1, 0*BytesPerWord + FrameMap::first_available_sp_in_frame, Z_SP); |
| __ z_lg(r2, 1*BytesPerWord + FrameMap::first_available_sp_in_frame, Z_SP); |
| __ z_br(Z_R14); |
| |
| __ bind(refill); |
| save_volatile_registers(sasm); |
| __ z_lgr(idx, addr_card); // Save addr_card, tmp3 must be non-volatile. |
| __ call_VM_leaf(CAST_FROM_FN_PTR(address, DirtyCardQueueSet::handle_zero_index_for_thread), |
| Z_thread); |
| __ z_lgr(addr_card, idx); |
| restore_volatile_registers(sasm); // Restore addr_card. |
| __ z_bru(restart); |
| } |
| break; |
| #endif // INCLUDE_ALL_GCS |
| case predicate_failed_trap_id: |
| { |
| __ set_info("predicate_failed_trap", dont_gc_arguments); |
| |
| OopMap* map = save_live_registers(sasm); |
| |
| int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, predicate_failed_trap)); |
| oop_maps = new OopMapSet(); |
| oop_maps->add_gc_map(call_offset, map); |
| restore_live_registers(sasm); |
| |
| DeoptimizationBlob* deopt_blob = SharedRuntime::deopt_blob(); |
| assert(deopt_blob != NULL, "deoptimization blob must have been created"); |
| |
| __ load_const_optimized(Z_R1_scratch, deopt_blob->unpack_with_reexecution()); |
| __ z_br(Z_R1_scratch); |
| } |
| break; |
| |
| default: |
| { |
| __ should_not_reach_here(FILE_AND_LINE, id); |
| } |
| break; |
| } |
| return oop_maps; |
| } |
| |
| OopMapSet* Runtime1::generate_handle_exception(StubID id, StubAssembler *sasm) { |
| __ block_comment("generate_handle_exception"); |
| |
| // incoming parameters: Z_EXC_OOP, Z_EXC_PC |
| |
| // Save registers if required. |
| OopMapSet* oop_maps = new OopMapSet(); |
| OopMap* oop_map = NULL; |
| Register reg_fp = Z_R1_scratch; |
| |
| switch (id) { |
| case forward_exception_id: { |
| // We're handling an exception in the context of a compiled frame. |
| // The registers have been saved in the standard places. Perform |
| // an exception lookup in the caller and dispatch to the handler |
| // if found. Otherwise unwind and dispatch to the callers |
| // exception handler. |
| oop_map = generate_oop_map(sasm); |
| |
| // Load and clear pending exception oop into. |
| __ z_lg(Z_EXC_OOP, Address(Z_thread, Thread::pending_exception_offset())); |
| __ clear_mem(Address(Z_thread, Thread::pending_exception_offset()), 8); |
| |
| // Different stubs forward their exceptions; they should all have similar frame layouts |
| // (a) to find their return address (b) for a correct oop_map generated above. |
| assert(RegisterSaver::live_reg_frame_size(RegisterSaver::all_registers) == |
| RegisterSaver::live_reg_frame_size(RegisterSaver::all_registers_except_r2), "requirement"); |
| |
| // Load issuing PC (the return address for this stub). |
| const int frame_size_in_bytes = sasm->frame_size() * VMRegImpl::slots_per_word * VMRegImpl::stack_slot_size; |
| __ z_lg(Z_EXC_PC, Address(Z_SP, frame_size_in_bytes + _z_abi16(return_pc))); |
| DEBUG_ONLY(__ z_lay(reg_fp, Address(Z_SP, frame_size_in_bytes));) |
| |
| // Make sure that the vm_results are cleared (may be unnecessary). |
| __ clear_mem(Address(Z_thread, JavaThread::vm_result_offset()), sizeof(oop)); |
| __ clear_mem(Address(Z_thread, JavaThread::vm_result_2_offset()), sizeof(Metadata*)); |
| break; |
| } |
| case handle_exception_nofpu_id: |
| case handle_exception_id: |
| // At this point all registers MAY be live. |
| DEBUG_ONLY(__ z_lgr(reg_fp, Z_SP);) |
| oop_map = save_live_registers(sasm, id != handle_exception_nofpu_id, Z_EXC_PC); |
| break; |
| case handle_exception_from_callee_id: { |
| // At this point all registers except Z_EXC_OOP and Z_EXC_PC are dead. |
| DEBUG_ONLY(__ z_lgr(reg_fp, Z_SP);) |
| __ save_return_pc(Z_EXC_PC); |
| const int frame_size_in_bytes = __ push_frame_abi160(0); |
| oop_map = new OopMap(frame_size_in_bytes / VMRegImpl::stack_slot_size, 0); |
| sasm->set_frame_size(frame_size_in_bytes / BytesPerWord); |
| break; |
| } |
| default: ShouldNotReachHere(); |
| } |
| |
| // Verify that only Z_EXC_OOP, and Z_EXC_PC are valid at this time. |
| __ invalidate_registers(Z_EXC_OOP, Z_EXC_PC, reg_fp); |
| // Verify that Z_EXC_OOP, contains a valid exception. |
| __ verify_not_null_oop(Z_EXC_OOP); |
| |
| // Check that fields in JavaThread for exception oop and issuing pc |
| // are empty before writing to them. |
| __ asm_assert_mem8_is_zero(in_bytes(JavaThread::exception_oop_offset()), Z_thread, "exception oop already set : " FILE_AND_LINE, 0); |
| __ asm_assert_mem8_is_zero(in_bytes(JavaThread::exception_pc_offset()), Z_thread, "exception pc already set : " FILE_AND_LINE, 0); |
| |
| // Save exception oop and issuing pc into JavaThread. |
| // (Exception handler will load it from here.) |
| __ z_stg(Z_EXC_OOP, Address(Z_thread, JavaThread::exception_oop_offset())); |
| __ z_stg(Z_EXC_PC, Address(Z_thread, JavaThread::exception_pc_offset())); |
| |
| #ifdef ASSERT |
| { NearLabel ok; |
| __ z_cg(Z_EXC_PC, Address(reg_fp, _z_abi16(return_pc))); |
| __ branch_optimized(Assembler::bcondEqual, ok); |
| __ stop("use throwing pc as return address (has bci & oop map)"); |
| __ bind(ok); |
| } |
| #endif |
| |
| // Compute the exception handler. |
| // The exception oop and the throwing pc are read from the fields in JavaThread. |
| int call_offset = __ call_RT(noreg, noreg, CAST_FROM_FN_PTR(address, exception_handler_for_pc)); |
| oop_maps->add_gc_map(call_offset, oop_map); |
| |
| // Z_RET(Z_R2): handler address |
| // will be the deopt blob if nmethod was deoptimized while we looked up |
| // handler regardless of whether handler existed in the nmethod. |
| |
| // Only Z_R2, is valid at this time, all other registers have been destroyed by the runtime call. |
| __ invalidate_registers(Z_R2); |
| |
| switch(id) { |
| case forward_exception_id: |
| case handle_exception_nofpu_id: |
| case handle_exception_id: |
| // Restore the registers that were saved at the beginning. |
| __ z_lgr(Z_R1_scratch, Z_R2); // Restoring live registers kills Z_R2. |
| restore_live_registers(sasm, id != handle_exception_nofpu_id); // Pops as well the frame. |
| __ z_br(Z_R1_scratch); |
| break; |
| case handle_exception_from_callee_id: { |
| __ pop_frame(); |
| __ z_br(Z_R2); // Jump to exception handler. |
| } |
| break; |
| default: ShouldNotReachHere(); |
| } |
| |
| return oop_maps; |
| } |
| |
| |
| #undef __ |
| |
| const char *Runtime1::pd_name_for_address(address entry) { |
| return "<unknown function>"; |
| } |
