1 /*
   2  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
   3  * Copyright 2007, 2008, 2009, 2010 Red Hat, Inc.
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This code is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *
  24  */
  25 
  26 #include "precompiled.hpp"
  27 #include "asm/assembler.hpp"
  28 #include "assembler_zero.inline.hpp"
  29 #include "code/debugInfoRec.hpp"
  30 #include "code/icBuffer.hpp"
  31 #include "code/vtableStubs.hpp"
  32 #include "interpreter/interpreter.hpp"
  33 #include "oops/compiledICHolderOop.hpp"
  34 #include "prims/jvmtiRedefineClassesTrace.hpp"
  35 #include "runtime/sharedRuntime.hpp"
  36 #include "runtime/vframeArray.hpp"
  37 #include "vmreg_zero.inline.hpp"
  38 #ifdef COMPILER1
  39 #include "c1/c1_Runtime1.hpp"
  40 #endif
  41 #ifdef COMPILER2
  42 #include "opto/runtime.hpp"
  43 #endif
  44 #ifdef SHARK
  45 #include "compiler/compileBroker.hpp"
  46 #include "shark/sharkCompiler.hpp"
  47 #endif
  48 
  49 DeoptimizationBlob *SharedRuntime::_deopt_blob;
  50 SafepointBlob      *SharedRuntime::_polling_page_safepoint_handler_blob;
  51 SafepointBlob      *SharedRuntime::_polling_page_return_handler_blob;
  52 RuntimeStub        *SharedRuntime::_wrong_method_blob;
  53 RuntimeStub        *SharedRuntime::_ic_miss_blob;
  54 RuntimeStub        *SharedRuntime::_resolve_opt_virtual_call_blob;
  55 RuntimeStub        *SharedRuntime::_resolve_virtual_call_blob;
  56 RuntimeStub        *SharedRuntime::_resolve_static_call_blob;
  57 
  58 int SharedRuntime::java_calling_convention(const BasicType *sig_bt,
  59                                            VMRegPair *regs,
  60                                            int total_args_passed,
  61                                            int is_outgoing) {
  62   return 0;
  63 }
  64 
  65 AdapterHandlerEntry* SharedRuntime::generate_i2c2i_adapters(
  66                         MacroAssembler *masm,
  67                         int total_args_passed,
  68                         int comp_args_on_stack,
  69                         const BasicType *sig_bt,
  70                         const VMRegPair *regs,
  71                         AdapterFingerPrint *fingerprint) {
  72   return AdapterHandlerLibrary::new_entry(
  73     fingerprint,
  74     ShouldNotCallThisStub(),
  75     ShouldNotCallThisStub(),
  76     ShouldNotCallThisStub());
  77 }
  78 
  79 nmethod *SharedRuntime::generate_native_wrapper(MacroAssembler *masm,
  80                                                 methodHandle method,
  81                                                 int total_in_args,
  82                                                 int comp_args_on_stack,
  83                                                 BasicType *in_sig_bt,
  84                                                 VMRegPair *in_regs,
  85                                                 BasicType ret_type) {
  86 #ifdef SHARK
  87   return SharkCompiler::compiler()->generate_native_wrapper(masm,
  88                                                             method,
  89                                                             in_sig_bt,
  90                                                             ret_type);
  91 #else
  92   ShouldNotCallThis();
  93 #endif // SHARK
  94 }
  95 
  96 int Deoptimization::last_frame_adjust(int callee_parameters,
  97                                       int callee_locals) {
  98   return 0;
  99 }
 100 
 101 uint SharedRuntime::out_preserve_stack_slots() {
 102   ShouldNotCallThis();
 103 }
 104 
 105 static RuntimeStub* generate_empty_runtime_stub(const char* name) {
 106   CodeBuffer buffer(name, 0, 0);
 107   return RuntimeStub::new_runtime_stub(name, &buffer, 0, 0, NULL, false);
 108 }
 109 
 110 static SafepointBlob* generate_empty_safepoint_blob() {
 111   CodeBuffer buffer("handler_blob", 0, 0);
 112   return SafepointBlob::create(&buffer, NULL, 0);
 113 }
 114 
 115 void SharedRuntime::generate_stubs() {
 116   _wrong_method_blob =
 117     generate_empty_runtime_stub("wrong_method_stub");
 118   _ic_miss_blob =
 119     generate_empty_runtime_stub("ic_miss_stub");
 120   _resolve_opt_virtual_call_blob =
 121     generate_empty_runtime_stub("resolve_opt_virtual_call");
 122   _resolve_virtual_call_blob =
 123     generate_empty_runtime_stub("resolve_virtual_call");
 124   _resolve_static_call_blob =
 125     generate_empty_runtime_stub("resolve_static_call");
 126 
 127   _polling_page_safepoint_handler_blob =
 128     generate_empty_safepoint_blob();
 129   _polling_page_return_handler_blob =
 130     generate_empty_safepoint_blob();
 131 }
 132 
 133 int SharedRuntime::c_calling_convention(const BasicType *sig_bt,
 134                                          VMRegPair *regs,
 135                                          int total_args_passed) {
 136   ShouldNotCallThis();
 137 }