--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/cpu/aarch64/interp_masm_aarch64.hpp Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,294 @@
+/*
+ * Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2014, 2015, Red Hat 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef CPU_AARCH64_VM_INTERP_MASM_AARCH64_64_HPP
+#define CPU_AARCH64_VM_INTERP_MASM_AARCH64_64_HPP
+
+#include "asm/macroAssembler.hpp"
+#include "asm/macroAssembler.inline.hpp"
+#include "interpreter/invocationCounter.hpp"
+#include "runtime/frame.hpp"
+
+// This file specializes the assember with interpreter-specific macros
+
+typedef ByteSize (*OffsetFunction)(uint);
+
+class InterpreterMacroAssembler: public MacroAssembler {
+ protected:
+
+ protected:
+ using MacroAssembler::call_VM_leaf_base;
+
+ // Interpreter specific version of call_VM_base
+ using MacroAssembler::call_VM_leaf_base;
+
+ virtual void call_VM_leaf_base(address entry_point,
+ int number_of_arguments);
+
+ virtual void call_VM_base(Register oop_result,
+ Register java_thread,
+ Register last_java_sp,
+ address entry_point,
+ int number_of_arguments,
+ bool check_exceptions);
+
+ // base routine for all dispatches
+ void dispatch_base(TosState state, address* table, bool verifyoop = true);
+
+ public:
+ InterpreterMacroAssembler(CodeBuffer* code) : MacroAssembler(code) {}
+
+ void load_earlyret_value(TosState state);
+
+ void jump_to_entry(address entry);
+
+ virtual void check_and_handle_popframe(Register java_thread);
+ virtual void check_and_handle_earlyret(Register java_thread);
+
+ // Interpreter-specific registers
+ void save_bcp() {
+ str(rbcp, Address(rfp, frame::interpreter_frame_bcp_offset * wordSize));
+ }
+
+ void restore_bcp() {
+ ldr(rbcp, Address(rfp, frame::interpreter_frame_bcp_offset * wordSize));
+ }
+
+ void restore_locals() {
+ ldr(rlocals, Address(rfp, frame::interpreter_frame_locals_offset * wordSize));
+ }
+
+ void restore_constant_pool_cache() {
+ ldr(rcpool, Address(rfp, frame::interpreter_frame_cache_offset * wordSize));
+ }
+
+ void get_dispatch();
+
+ // Helpers for runtime call arguments/results
+
+ // Helpers for runtime call arguments/results
+ void get_method(Register reg) {
+ ldr(reg, Address(rfp, frame::interpreter_frame_method_offset * wordSize));
+ }
+
+ void get_const(Register reg) {
+ get_method(reg);
+ ldr(reg, Address(reg, in_bytes(Method::const_offset())));
+ }
+
+ void get_constant_pool(Register reg) {
+ get_const(reg);
+ ldr(reg, Address(reg, in_bytes(ConstMethod::constants_offset())));
+ }
+
+ void get_constant_pool_cache(Register reg) {
+ get_constant_pool(reg);
+ ldr(reg, Address(reg, ConstantPool::cache_offset_in_bytes()));
+ }
+
+ void get_cpool_and_tags(Register cpool, Register tags) {
+ get_constant_pool(cpool);
+ ldr(tags, Address(cpool, ConstantPool::tags_offset_in_bytes()));
+ }
+
+ void get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset);
+ void get_cache_and_index_at_bcp(Register cache, Register index, int bcp_offset, size_t index_size = sizeof(u2));
+ void get_cache_and_index_and_bytecode_at_bcp(Register cache, Register index, Register bytecode, int byte_no, int bcp_offset, size_t index_size = sizeof(u2));
+ void get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset, size_t index_size = sizeof(u2));
+ void get_cache_index_at_bcp(Register index, int bcp_offset, size_t index_size = sizeof(u2));
+ void get_method_counters(Register method, Register mcs, Label& skip);
+
+ // load cpool->resolved_references(index);
+ void load_resolved_reference_at_index(Register result, Register index);
+
+ // load cpool->resolved_klass_at(index);
+ void load_resolved_klass_at_offset(Register cpool, Register index, Register klass, Register temp);
+
+ void pop_ptr(Register r = r0);
+ void pop_i(Register r = r0);
+ void pop_l(Register r = r0);
+ void pop_f(FloatRegister r = v0);
+ void pop_d(FloatRegister r = v0);
+ void push_ptr(Register r = r0);
+ void push_i(Register r = r0);
+ void push_l(Register r = r0);
+ void push_f(FloatRegister r = v0);
+ void push_d(FloatRegister r = v0);
+
+ void pop(Register r ) { ((MacroAssembler*)this)->pop(r); }
+
+ void push(Register r ) { ((MacroAssembler*)this)->push(r); }
+
+ void pop(TosState state); // transition vtos -> state
+ void push(TosState state); // transition state -> vtos
+
+ void pop(RegSet regs, Register stack) { ((MacroAssembler*)this)->pop(regs, stack); }
+ void push(RegSet regs, Register stack) { ((MacroAssembler*)this)->push(regs, stack); }
+
+ void empty_expression_stack() {
+ ldr(esp, Address(rfp, frame::interpreter_frame_monitor_block_top_offset * wordSize));
+ // NULL last_sp until next java call
+ str(zr, Address(rfp, frame::interpreter_frame_last_sp_offset * wordSize));
+ }
+
+ // Helpers for swap and dup
+ void load_ptr(int n, Register val);
+ void store_ptr(int n, Register val);
+
+ // Generate a subtype check: branch to ok_is_subtype if sub_klass is
+ // a subtype of super_klass.
+ void gen_subtype_check( Register sub_klass, Label &ok_is_subtype );
+
+ // Dispatching
+ void dispatch_prolog(TosState state, int step = 0);
+ void dispatch_epilog(TosState state, int step = 0);
+ // dispatch via rscratch1
+ void dispatch_only(TosState state);
+ // dispatch normal table via rscratch1 (assume rscratch1 is loaded already)
+ void dispatch_only_normal(TosState state);
+ void dispatch_only_noverify(TosState state);
+ // load rscratch1 from [rbcp + step] and dispatch via rscratch1
+ void dispatch_next(TosState state, int step = 0);
+ // load rscratch1 from [esi] and dispatch via rscratch1 and table
+ void dispatch_via (TosState state, address* table);
+
+ // jump to an invoked target
+ void prepare_to_jump_from_interpreted();
+ void jump_from_interpreted(Register method, Register temp);
+
+
+ // Returning from interpreted functions
+ //
+ // Removes the current activation (incl. unlocking of monitors)
+ // and sets up the return address. This code is also used for
+ // exception unwindwing. In that case, we do not want to throw
+ // IllegalMonitorStateExceptions, since that might get us into an
+ // infinite rethrow exception loop.
+ // Additionally this code is used for popFrame and earlyReturn.
+ // In popFrame case we want to skip throwing an exception,
+ // installing an exception, and notifying jvmdi.
+ // In earlyReturn case we only want to skip throwing an exception
+ // and installing an exception.
+ void remove_activation(TosState state,
+ bool throw_monitor_exception = true,
+ bool install_monitor_exception = true,
+ bool notify_jvmdi = true);
+
+ // FIXME: Give us a valid frame at a null check.
+ virtual void null_check(Register reg, int offset = -1) {
+// #ifdef ASSERT
+// save_bcp();
+// set_last_Java_frame(esp, rfp, (address) pc());
+// #endif
+ MacroAssembler::null_check(reg, offset);
+// #ifdef ASSERT
+// reset_last_Java_frame(true);
+// #endif
+ }
+
+ // Object locking
+ void lock_object (Register lock_reg);
+ void unlock_object(Register lock_reg);
+
+ // Interpreter profiling operations
+ void set_method_data_pointer_for_bcp();
+ void test_method_data_pointer(Register mdp, Label& zero_continue);
+ void verify_method_data_pointer();
+
+ void set_mdp_data_at(Register mdp_in, int constant, Register value);
+ void increment_mdp_data_at(Address data, bool decrement = false);
+ void increment_mdp_data_at(Register mdp_in, int constant,
+ bool decrement = false);
+ void increment_mdp_data_at(Register mdp_in, Register reg, int constant,
+ bool decrement = false);
+ void increment_mask_and_jump(Address counter_addr,
+ int increment, Address mask,
+ Register scratch, Register scratch2,
+ bool preloaded, Condition cond,
+ Label* where);
+ void set_mdp_flag_at(Register mdp_in, int flag_constant);
+ void test_mdp_data_at(Register mdp_in, int offset, Register value,
+ Register test_value_out,
+ Label& not_equal_continue);
+
+ void record_klass_in_profile(Register receiver, Register mdp,
+ Register reg2, bool is_virtual_call);
+ void record_klass_in_profile_helper(Register receiver, Register mdp,
+ Register reg2, int start_row,
+ Label& done, bool is_virtual_call);
+ void record_item_in_profile_helper(Register item, Register mdp,
+ Register reg2, int start_row, Label& done, int total_rows,
+ OffsetFunction item_offset_fn, OffsetFunction item_count_offset_fn,
+ int non_profiled_offset);
+
+ void update_mdp_by_offset(Register mdp_in, int offset_of_offset);
+ void update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp);
+ void update_mdp_by_constant(Register mdp_in, int constant);
+ void update_mdp_for_ret(Register return_bci);
+
+ // narrow int return value
+ void narrow(Register result);
+
+ void profile_taken_branch(Register mdp, Register bumped_count);
+ void profile_not_taken_branch(Register mdp);
+ void profile_call(Register mdp);
+ void profile_final_call(Register mdp);
+ void profile_virtual_call(Register receiver, Register mdp,
+ Register scratch2,
+ bool receiver_can_be_null = false);
+ void profile_called_method(Register method, Register mdp, Register reg2) NOT_JVMCI_RETURN;
+ void profile_ret(Register return_bci, Register mdp);
+ void profile_null_seen(Register mdp);
+ void profile_typecheck(Register mdp, Register klass, Register scratch);
+ void profile_typecheck_failed(Register mdp);
+ void profile_switch_default(Register mdp);
+ void profile_switch_case(Register index_in_scratch, Register mdp,
+ Register scratch2);
+
+ void profile_obj_type(Register obj, const Address& mdo_addr);
+ void profile_arguments_type(Register mdp, Register callee, Register tmp, bool is_virtual);
+ void profile_return_type(Register mdp, Register ret, Register tmp);
+ void profile_parameters_type(Register mdp, Register tmp1, Register tmp2);
+
+ // Debugging
+ // only if +VerifyOops && state == atos
+ void verify_oop(Register reg, TosState state = atos);
+ // only if +VerifyFPU && (state == ftos || state == dtos)
+ void verify_FPU(int stack_depth, TosState state = ftos);
+
+ typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode;
+
+ // support for jvmti/dtrace
+ void notify_method_entry();
+ void notify_method_exit(TosState state, NotifyMethodExitMode mode);
+
+ virtual void _call_Unimplemented(address call_site) {
+ save_bcp();
+ set_last_Java_frame(esp, rfp, (address) pc(), rscratch1);
+ MacroAssembler::_call_Unimplemented(call_site);
+ }
+};
+
+#endif // CPU_AARCH64_VM_INTERP_MASM_AARCH64_64_HPP