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src/hotspot/share/code/debugInfoRec.hpp

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rev 60703 : 8227745, 8233915: Enable Escape Analysis for Better Performance in the Presence of JVMTI Agents
Reviewed-by: mdoerr, goetz
   1 /*
   2  * Copyright (c) 1998, 2019, 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  *


  88   void add_non_safepoint(int pc_offset);
  89 
  90   // Describes debugging information for a scope at the given pc_offset.
  91   // Calls must be in non-decreasing order of pc_offset.
  92   // If there are several calls at a single pc_offset,
  93   // then they occur in the same order as they were performed by the JVM,
  94   // with the most recent (innermost) call being described last.
  95   // For a safepoint, the pc_offset must have been mentioned
  96   // previously by add_safepoint.
  97   // Otherwise, the pc_offset must have been mentioned previously
  98   // by add_non_safepoint, and the locals, expressions, and monitors
  99   // must all be null.
 100   void describe_scope(int         pc_offset,
 101                       const methodHandle& methodH,
 102                       ciMethod*   method,
 103                       int         bci,
 104                       bool        reexecute,
 105                       bool        rethrow_exception = false,
 106                       bool        is_method_handle_invoke = false,
 107                       bool        return_oop = false,


 108                       DebugToken* locals      = NULL,
 109                       DebugToken* expressions = NULL,
 110                       DebugToken* monitors    = NULL);
 111 
 112 
 113   void dump_object_pool(GrowableArray<ScopeValue*>* objects);
 114 
 115   // This call must follow every add_safepoint,
 116   // after any intervening describe_scope calls.
 117   void end_safepoint(int pc_offset)      { end_scopes(pc_offset, true); }
 118   void end_non_safepoint(int pc_offset)  { end_scopes(pc_offset, false); }
 119 
 120   // helper fuctions for describe_scope to enable sharing
 121   DebugToken* create_scope_values(GrowableArray<ScopeValue*>* values);
 122   DebugToken* create_monitor_values(GrowableArray<MonitorValue*>* monitors);
 123 
 124   // returns the size of the generated scopeDescs.
 125   int data_size();
 126   int pcs_size();
 127   int oop_size() { return oop_recorder()->oop_size(); }


   1 /*
   2  * Copyright (c) 1998, 2020, 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  *


  88   void add_non_safepoint(int pc_offset);
  89 
  90   // Describes debugging information for a scope at the given pc_offset.
  91   // Calls must be in non-decreasing order of pc_offset.
  92   // If there are several calls at a single pc_offset,
  93   // then they occur in the same order as they were performed by the JVM,
  94   // with the most recent (innermost) call being described last.
  95   // For a safepoint, the pc_offset must have been mentioned
  96   // previously by add_safepoint.
  97   // Otherwise, the pc_offset must have been mentioned previously
  98   // by add_non_safepoint, and the locals, expressions, and monitors
  99   // must all be null.
 100   void describe_scope(int         pc_offset,
 101                       const methodHandle& methodH,
 102                       ciMethod*   method,
 103                       int         bci,
 104                       bool        reexecute,
 105                       bool        rethrow_exception = false,
 106                       bool        is_method_handle_invoke = false,
 107                       bool        return_oop = false,
 108                       bool        has_ea_local_in_scope = false,
 109                       bool        arg_escape = false,
 110                       DebugToken* locals      = NULL,
 111                       DebugToken* expressions = NULL,
 112                       DebugToken* monitors    = NULL);
 113 
 114 
 115   void dump_object_pool(GrowableArray<ScopeValue*>* objects);
 116 
 117   // This call must follow every add_safepoint,
 118   // after any intervening describe_scope calls.
 119   void end_safepoint(int pc_offset)      { end_scopes(pc_offset, true); }
 120   void end_non_safepoint(int pc_offset)  { end_scopes(pc_offset, false); }
 121 
 122   // helper fuctions for describe_scope to enable sharing
 123   DebugToken* create_scope_values(GrowableArray<ScopeValue*>* values);
 124   DebugToken* create_monitor_values(GrowableArray<MonitorValue*>* monitors);
 125 
 126   // returns the size of the generated scopeDescs.
 127   int data_size();
 128   int pcs_size();
 129   int oop_size() { return oop_recorder()->oop_size(); }


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