1 /*
   2  * Copyright (c) 1999, 2010, 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 
  31 // The following routines and definitions are used internally in the
  32 // compiler interface.
  33 
  34 
  35 // Add a ci native entry wrapper?
  36 
  37 // Bring the compilation thread into the VM state.
  38 #define VM_ENTRY_MARK                       \
  39   CompilerThread* thread=CompilerThread::current(); \
  40   ThreadInVMfromNative __tiv(thread);       \
  41   ResetNoHandleMark rnhm;                   \
  42   HandleMarkCleaner __hm(thread);           \
  43   Thread* THREAD = thread;                  \
  44   debug_only(VMNativeEntryWrapper __vew;)
  45 
  46 
  47 
  48 // Bring the compilation thread into the VM state.  No handle mark.
  49 #define VM_QUICK_ENTRY_MARK                 \
  50   CompilerThread* thread=CompilerThread::current(); \
  51   ThreadInVMfromNative __tiv(thread);       \
  52 /*                                          \
  53  * [TODO] The NoHandleMark line does nothing but declare a function prototype \
  54  * The NoHandkeMark constructor is NOT executed. If the ()'s are   \
  55  * removed, causes the NoHandleMark assert to trigger. \
  56  * debug_only(NoHandleMark __hm();)         \
  57  */                                         \
  58   Thread* THREAD = thread;                  \
  59   debug_only(VMNativeEntryWrapper __vew;)
  60 
  61 
  62 #define EXCEPTION_CONTEXT \
  63   CompilerThread* thread=CompilerThread::current(); \
  64   Thread* THREAD = thread;
  65 
  66 
  67 #define CURRENT_ENV                         \
  68   ciEnv::current()
  69 
  70 // where current thread is THREAD
  71 #define CURRENT_THREAD_ENV                  \
  72   ciEnv::current(thread)
  73 
  74 #define IS_IN_VM                            \
  75   ciEnv::is_in_vm()
  76 
  77 #define ASSERT_IN_VM                        \
  78   assert(IS_IN_VM, "must be in vm state");
  79 
  80 #define GUARDED_VM_ENTRY(action)            \
  81   {if (IS_IN_VM) { action } else { VM_ENTRY_MARK; { action }}}
  82 
  83 // Redefine this later.
  84 #define KILL_COMPILE_ON_FATAL_(result)           \
  85   THREAD);                                       \
  86   if (HAS_PENDING_EXCEPTION) {                   \
  87     if (PENDING_EXCEPTION->klass() ==            \
  88         SystemDictionary::ThreadDeath_klass()) { \
  89       /* Kill the compilation. */                \
  90       fatal("unhandled ci exception");           \
  91       return (result);                           \
  92     }                                            \
  93     CLEAR_PENDING_EXCEPTION;                     \
  94     return (result);                             \
  95   }                                              \
  96   (0
  97 
  98 #define KILL_COMPILE_ON_ANY                      \
  99   THREAD);                                       \
 100   if (HAS_PENDING_EXCEPTION) {                   \
 101     fatal("unhandled ci exception");             \
 102     CLEAR_PENDING_EXCEPTION;                     \
 103   }                                              \
 104 (0
 105 
 106 
 107 inline const char* bool_to_str(bool b) {
 108   return ((b) ? "true" : "false");
 109 }
 110 
 111 const char* basictype_to_str(BasicType t);
 112 const char  basictype_to_char(BasicType t);
 113 
 114 #endif // SHARE_VM_CI_CIUTILITIES_HPP