1 /*
   2  * Copyright (c) 1999, 2013, 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_CI_CIUTILITIES_HPP
  26 #define SHARE_VM_CI_CIUTILITIES_HPP
  27 
  28 #include "ci/ciEnv.hpp"
  29 #include "runtime/interfaceSupport.hpp"
  30 #include "utilities/globalDefinitions.hpp"
  31 
  32 // The following routines and definitions are used internally in the
  33 // compiler interface.
  34 
  35 
  36 // Add a ci native entry wrapper?
  37 
  38 // Bring the compilation thread into the VM state.
  39 #define VM_ENTRY_MARK                       \
  40   CompilerThread* thread=CompilerThread::current(); \
  41   ThreadInVMfromNative __tiv(thread);       \
  42   ResetNoHandleMark rnhm;                   \
  43   HandleMarkCleaner __hm(thread);           \
  44   Thread* THREAD = thread;                  \
  45   debug_only(VMNativeEntryWrapper __vew;)
  46 
  47 
  48 
  49 // Bring the compilation thread into the VM state.  No handle mark.
  50 #define VM_QUICK_ENTRY_MARK                 \
  51   CompilerThread* thread=CompilerThread::current(); \
  52   ThreadInVMfromNative __tiv(thread);       \
  53 /*                                          \
  54  * [TODO] The NoHandleMark line does nothing but declare a function prototype \
  55  * The NoHandkeMark constructor is NOT executed. If the ()'s are   \
  56  * removed, causes the NoHandleMark assert to trigger. \
  57  * debug_only(NoHandleMark __hm();)         \
  58  */                                         \
  59   Thread* THREAD = thread;                  \
  60   debug_only(VMNativeEntryWrapper __vew;)
  61 
  62 
  63 #define EXCEPTION_CONTEXT \
  64   CompilerThread* thread=CompilerThread::current(); \
  65   Thread* THREAD = thread;
  66 
  67 
  68 #define CURRENT_ENV                         \
  69   ciEnv::current()
  70 
  71 // where current thread is THREAD
  72 #define CURRENT_THREAD_ENV                  \
  73   ciEnv::current(thread)
  74 
  75 #define IS_IN_VM                            \
  76   ciEnv::is_in_vm()
  77 
  78 #define ASSERT_IN_VM                        \
  79   assert(IS_IN_VM, "must be in vm state");
  80 
  81 #define GUARDED_VM_ENTRY(action)            \
  82   {if (IS_IN_VM) { action } else { VM_ENTRY_MARK; { action }}}
  83 
  84 #define GUARDED_VM_QUICK_ENTRY(action)      \
  85   {if (IS_IN_VM) { action } else { VM_QUICK_ENTRY_MARK; { action }}}
  86 
  87 // Redefine this later.
  88 #define KILL_COMPILE_ON_FATAL_(result)           \
  89   THREAD);                                       \
  90   if (HAS_PENDING_EXCEPTION) {                   \
  91     if (PENDING_EXCEPTION->klass() ==            \
  92         SystemDictionary::ThreadDeath_klass()) { \
  93       /* Kill the compilation. */                \
  94       fatal("unhandled ci exception");           \
  95       return (result);                           \
  96     }                                            \
  97     CLEAR_PENDING_EXCEPTION;                     \
  98     return (result);                             \
  99   }                                              \
 100   (void)(0
 101 
 102 #define KILL_COMPILE_ON_ANY                      \
 103   THREAD);                                       \
 104   if (HAS_PENDING_EXCEPTION) {                   \
 105     fatal("unhandled ci exception");             \
 106     CLEAR_PENDING_EXCEPTION;                     \
 107   }                                              \
 108 (void)(0
 109 
 110 
 111 inline const char* bool_to_str(bool b) {
 112   return ((b) ? "true" : "false");
 113 }
 114 
 115 const char* basictype_to_str(BasicType t);
 116 const char  basictype_to_char(BasicType t);
 117 
 118 jbyte *ci_card_table_address();
 119 template <typename T> T ci_card_table_address_as() {
 120   return reinterpret_cast<T>(ci_card_table_address());
 121 }
 122 
 123 #endif // SHARE_VM_CI_CIUTILITIES_HPP
--- EOF ---