1 /*
   2  * Copyright (c) 1998, 2014, 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_COMPILER_COMPILERORACLE_HPP
  26 #define SHARE_VM_COMPILER_COMPILERORACLE_HPP
  27 
  28 #include "memory/allocation.hpp"
  29 #include "oops/oopsHierarchy.hpp"
  30 
  31 // CompilerOracle is an interface for turning on and off compilation
  32 // for some methods
  33 
  34 class CompilerOracle : AllStatic {
  35  private:
  36   static bool _quiet;
  37 
  38  public:
  39 
  40   // True if the command file has been specified or is implicit
  41   static bool has_command_file();
  42 
  43   // Reads from file and adds to lists
  44   static void parse_from_file();
  45 
  46   // Tells whether we to exclude compilation of method
  47   static bool should_exclude(methodHandle method, bool& quietly);
  48 
  49   // Tells whether we want to inline this method
  50   static bool should_inline(methodHandle method);
  51 
  52   // Tells whether we want to disallow inlining of this method
  53   static bool should_not_inline(methodHandle method);
  54 
  55   // Tells whether we should print the assembly for this method
  56   static bool should_print(methodHandle method);
  57 
  58   // Tells whether we should log the compilation data for this method
  59   static bool should_log(methodHandle method);
  60 
  61   // Tells whether to break when compiling method
  62   static bool should_break_at(methodHandle method);
  63 
  64   // Check to see if this method has option set for it
  65   static bool has_option_string(methodHandle method, const char * option);
  66 
  67   // Check if method has option and value set. If yes, overwrite value and return true,
  68   // otherwise leave value unchanged and return false.
  69   template<typename T>
  70   static bool has_option_value(methodHandle method, const char* option, T& value);
  71 
  72   // Reads from string instead of file
  73   static void parse_from_string(const char* command_string, void (*parser)(char*));
  74 
  75   static void parse_from_line(char* line);
  76   static void parse_compile_only(char * line);
  77 
  78   // For updating the oracle file
  79   static void append_comment_to_file(const char* message);
  80   static void append_exclude_to_file(methodHandle method);
  81 
  82   // Tells whether there are any methods to print for print_method_statistics()
  83   static bool should_print_methods();
  84 };
  85 
  86 #endif // SHARE_VM_COMPILER_COMPILERORACLE_HPP