1 /*
   2  * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef SHARE_VM_INTERPRETER_TEMPLATEINTERPRETERGENERATOR_HPP
  26 #define SHARE_VM_INTERPRETER_TEMPLATEINTERPRETERGENERATOR_HPP
  27 
  28 // This file contains the platform-independent parts
  29 // of the template interpreter generator.
  30 
  31 #ifndef CC_INTERP
  32 
  33 class TemplateInterpreterGenerator: public AbstractInterpreterGenerator {
  34  protected:
  35 
  36   // entry points for shared code sequence
  37   address _unimplemented_bytecode;
  38   address _illegal_bytecode_sequence;
  39 
  40   // shared code sequences
  41   // Converter for native abi result to tosca result
  42   address generate_result_handler_for(BasicType type);
  43   address generate_slow_signature_handler();
  44   address generate_error_exit(const char* msg);
  45   address generate_StackOverflowError_handler();
  46   address generate_exception_handler(const char* name, const char* message) {
  47     return generate_exception_handler_common(name, message, false);
  48   }
  49   address generate_klass_exception_handler(const char* name) {
  50     return generate_exception_handler_common(name, NULL, true);
  51   }
  52   address generate_exception_handler_common(const char* name, const char* message, bool pass_oop);
  53   address generate_ClassCastException_handler();
  54   address generate_ArrayIndexOutOfBounds_handler(const char* name);
  55   address generate_return_entry_for(TosState state, int step, size_t index_size);
  56   address generate_earlyret_entry_for(TosState state);
  57   address generate_deopt_entry_for(TosState state, int step);
  58   address generate_safept_entry_for(TosState state, address runtime_entry);
  59   void    generate_throw_exception();
  60 
  61   void lock_method();
  62 
  63   void bang_stack_shadow_pages(bool native_call);
  64 
  65   // Instruction generation
  66   void generate_and_dispatch (Template* t, TosState tos_out = ilgl);
  67   void set_vtos_entry_points (Template* t, address& bep, address& cep, address& sep, address& aep, address& iep, address& lep, address& fep, address& dep, address& vep);
  68   void set_short_entry_points(Template* t, address& bep, address& cep, address& sep, address& aep, address& iep, address& lep, address& fep, address& dep, address& vep);
  69   void set_wide_entry_point  (Template* t, address& wep);
  70 
  71   void set_entry_points(Bytecodes::Code code);
  72   void set_unimplemented(int i);
  73   void set_entry_points_for_all_bytes();
  74   void set_safepoints_for_all_bytes();
  75 
  76   // Helpers for generate_and_dispatch
  77   address generate_trace_code(TosState state)   PRODUCT_RETURN0;
  78   void count_bytecode()                         PRODUCT_RETURN;
  79   void histogram_bytecode(Template* t)          PRODUCT_RETURN;
  80   void histogram_bytecode_pair(Template* t)     PRODUCT_RETURN;
  81   void trace_bytecode(Template* t)              PRODUCT_RETURN;
  82   void stop_interpreter_at()                    PRODUCT_RETURN;
  83 
  84   void generate_all();
  85 
  86   // entry point generator
  87   address generate_method_entry(AbstractInterpreter::MethodKind kind);
  88 
  89   address generate_normal_entry(bool synchronized);
  90   address generate_native_entry(bool synchronized);
  91   address generate_abstract_entry(void);
  92   address generate_math_entry(AbstractInterpreter::MethodKind kind);
  93   address generate_Reference_get_entry();
  94   address generate_Continuation_run_entry();
  95   address generate_CRC32_update_entry();
  96   address generate_CRC32_updateBytes_entry(AbstractInterpreter::MethodKind kind);
  97   address generate_CRC32C_updateBytes_entry(AbstractInterpreter::MethodKind kind);
  98 #ifdef IA32
  99   address generate_Float_intBitsToFloat_entry();
 100   address generate_Float_floatToRawIntBits_entry();
 101   address generate_Double_longBitsToDouble_entry();
 102   address generate_Double_doubleToRawLongBits_entry();
 103 #endif // IA32
 104   // Some platforms don't need registers, other need two. Unused function is
 105   // left unimplemented.
 106   void generate_stack_overflow_check(void);
 107   void generate_stack_overflow_check(Register Rframe_size, Register Rscratch);
 108 
 109   void generate_counter_incr(Label* overflow, Label* profile_method, Label* profile_method_continue);
 110   void generate_counter_overflow(Label& continue_entry);
 111 
 112   void generate_fixed_frame(bool native_call);
 113 #ifdef SPARC
 114   void save_native_result(void);
 115   void restore_native_result(void);
 116 #endif // SPARC
 117 
 118 #ifdef AARCH64
 119   void generate_transcendental_entry(AbstractInterpreter::MethodKind kind, int fpargs);
 120 #endif // AARCH64
 121 
 122 #ifdef PPC
 123   void lock_method(Register Rflags, Register Rscratch1, Register Rscratch2, bool flags_preloaded=false);
 124   void generate_fixed_frame(bool native_call, Register Rsize_of_parameters, Register Rsize_of_locals);
 125 #endif // PPC
 126 
 127  public:
 128   TemplateInterpreterGenerator(StubQueue* _code);
 129 };
 130 
 131 #endif // !CC_INTERP
 132 
 133 #endif // SHARE_VM_INTERPRETER_TEMPLATEINTERPRETERGENERATOR_HPP
--- EOF ---