1 /*
   2  * Copyright 2003-2007 Sun Microsystems, Inc.  All Rights Reserved.
   3  * Copyright 2007, 2008 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  21  * CA 95054 USA or visit www.sun.com if you need additional information or
  22  * have any questions.
  23  *
  24  */
  25 
  26 #include "incls/_precompiled.incl"
  27 #include "incls/_sharedRuntime_zero.cpp.incl"
  28 
  29 DeoptimizationBlob *SharedRuntime::_deopt_blob;
  30 SafepointBlob      *SharedRuntime::_polling_page_safepoint_handler_blob;
  31 SafepointBlob      *SharedRuntime::_polling_page_return_handler_blob;
  32 RuntimeStub        *SharedRuntime::_wrong_method_blob;
  33 RuntimeStub        *SharedRuntime::_ic_miss_blob;
  34 RuntimeStub        *SharedRuntime::_resolve_opt_virtual_call_blob;
  35 RuntimeStub        *SharedRuntime::_resolve_virtual_call_blob;
  36 RuntimeStub        *SharedRuntime::_resolve_static_call_blob;
  37 
  38 int SharedRuntime::java_calling_convention(const BasicType *sig_bt,
  39                                            VMRegPair *regs,
  40                                            int total_args_passed,
  41                                            int is_outgoing) {
  42   return 0;
  43 }
  44 
  45 AdapterHandlerEntry* SharedRuntime::generate_i2c2i_adapters(
  46                         MacroAssembler *masm,
  47                         int total_args_passed,
  48                         int comp_args_on_stack,
  49                         const BasicType *sig_bt,
  50                         const VMRegPair *regs) {
  51   return new AdapterHandlerEntry(
  52     ShouldNotCallThisStub(),
  53     ShouldNotCallThisStub(),
  54     ShouldNotCallThisStub());
  55 }
  56 
  57 nmethod *SharedRuntime::generate_native_wrapper(MacroAssembler *masm,
  58                                                 methodHandle method,
  59                                                 int total_in_args,
  60                                                 int comp_args_on_stack,
  61                                                 BasicType *in_sig_bt,
  62                                                 VMRegPair *in_regs,
  63                                                 BasicType ret_type) {
  64   ShouldNotCallThis();
  65 }
  66 
  67 int Deoptimization::last_frame_adjust(int callee_parameters,
  68                                       int callee_locals) {
  69   return 0;
  70 }
  71 
  72 uint SharedRuntime::out_preserve_stack_slots() {
  73   ShouldNotCallThis();
  74 }
  75 
  76 static RuntimeStub* generate_empty_runtime_stub(const char* name) {
  77   CodeBuffer buffer(name, 0, 0);
  78   return RuntimeStub::new_runtime_stub(name, &buffer, 0, 0, NULL, false);
  79 }
  80 
  81 static SafepointBlob* generate_empty_safepoint_blob() {
  82   CodeBuffer buffer("handler_blob", 0, 0);
  83   return SafepointBlob::create(&buffer, NULL, 0);
  84 }
  85 
  86 void SharedRuntime::generate_stubs() {
  87   _wrong_method_blob =
  88     generate_empty_runtime_stub("wrong_method_stub");
  89   _ic_miss_blob =
  90     generate_empty_runtime_stub("ic_miss_stub");
  91   _resolve_opt_virtual_call_blob =
  92     generate_empty_runtime_stub("resolve_opt_virtual_call");
  93   _resolve_virtual_call_blob =
  94     generate_empty_runtime_stub("resolve_virtual_call");
  95   _resolve_static_call_blob =
  96     generate_empty_runtime_stub("resolve_static_call");
  97 
  98   _polling_page_safepoint_handler_blob =
  99     generate_empty_safepoint_blob();
 100   _polling_page_return_handler_blob =
 101     generate_empty_safepoint_blob();
 102 }
 103 
 104 int SharedRuntime::c_calling_convention(const BasicType *sig_bt,
 105                                          VMRegPair *regs,
 106                                          int total_args_passed) {
 107   ShouldNotCallThis();
 108 }