1 /*
   2  * Copyright (c) 2000, 2017, 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 #include "precompiled.hpp"
  26 #include "jvm.h"
  27 #include "jvmci/jvmci_globals.hpp"
  28 #include "utilities/defaultStream.hpp"
  29 #include "runtime/globals_extension.hpp"
  30 
  31 JVMCI_FLAGS(MATERIALIZE_DEVELOPER_FLAG, \
  32             MATERIALIZE_PD_DEVELOPER_FLAG, \
  33             MATERIALIZE_PRODUCT_FLAG, \
  34             MATERIALIZE_PD_PRODUCT_FLAG, \
  35             MATERIALIZE_DIAGNOSTIC_FLAG, \
  36             MATERIALIZE_PD_DIAGNOSTIC_FLAG, \
  37             MATERIALIZE_EXPERIMENTAL_FLAG, \
  38             MATERIALIZE_NOTPRODUCT_FLAG,
  39             IGNORE_RANGE, \
  40             IGNORE_CONSTRAINT, \
  41             IGNORE_WRITEABLE)
  42 
  43 // Return true if jvmci flags are consistent.
  44 bool JVMCIGlobals::check_jvmci_flags_are_consistent() {
  45 
  46 #ifndef PRODUCT
  47 #define APPLY_JVMCI_FLAGS(params3, params4) \
  48   JVMCI_FLAGS(params4, params3, params4, params3, params4, params3, params4, params4, IGNORE_RANGE, IGNORE_CONSTRAINT, IGNORE_WRITEABLE)
  49 #define JVMCI_DECLARE_CHECK4(type, name, value, doc) bool name##checked = false;
  50 #define JVMCI_DECLARE_CHECK3(type, name, doc)        bool name##checked = false;
  51 #define JVMCI_FLAG_CHECKED(name)                          name##checked = true;
  52   APPLY_JVMCI_FLAGS(JVMCI_DECLARE_CHECK3, JVMCI_DECLARE_CHECK4)
  53 #else
  54 #define JVMCI_FLAG_CHECKED(name)
  55 #endif
  56 
  57   // Checks that a given flag is not set if a given guard flag is false.
  58 #define CHECK_NOT_SET(FLAG, GUARD)                     \
  59   JVMCI_FLAG_CHECKED(FLAG)                             \
  60   if (!GUARD && !FLAG_IS_DEFAULT(FLAG)) {              \
  61     jio_fprintf(defaultStream::error_stream(),         \
  62         "Improperly specified VM option '%s': '%s' must be enabled\n", #FLAG, #GUARD); \
  63     return false;                                      \
  64   }
  65 
  66   JVMCI_FLAG_CHECKED(UseJVMCICompiler)
  67   JVMCI_FLAG_CHECKED(EnableJVMCI)
  68 
  69   CHECK_NOT_SET(BootstrapJVMCI,   UseJVMCICompiler)
  70   CHECK_NOT_SET(PrintBootstrap,   UseJVMCICompiler)
  71   CHECK_NOT_SET(JVMCIThreads,     UseJVMCICompiler)
  72   CHECK_NOT_SET(JVMCIHostThreads, UseJVMCICompiler)
  73 
  74   if (UseJVMCICompiler) {
  75     if (!FLAG_IS_DEFAULT(EnableJVMCI) && !EnableJVMCI) {
  76       jio_fprintf(defaultStream::error_stream(),
  77           "Improperly specified VM option UseJVMCICompiler: EnableJVMCI cannot be disabled\n");
  78       return false;
  79     }
  80     FLAG_SET_DEFAULT(EnableJVMCI, true);
  81   }
  82 
  83   CHECK_NOT_SET(JVMCITraceLevel,              EnableJVMCI)
  84   CHECK_NOT_SET(JVMCICounterSize,             EnableJVMCI)
  85   CHECK_NOT_SET(JVMCICountersExcludeCompiler, EnableJVMCI)
  86   CHECK_NOT_SET(JVMCIUseFastLocking,          EnableJVMCI)
  87   CHECK_NOT_SET(JVMCINMethodSizeLimit,        EnableJVMCI)
  88   CHECK_NOT_SET(MethodProfileWidth,           EnableJVMCI)
  89   CHECK_NOT_SET(JVMCIPrintProperties,         EnableJVMCI)
  90   CHECK_NOT_SET(TraceUncollectedSpeculations, EnableJVMCI)
  91   CHECK_NOT_SET(EagerJVMCI,                   EnableJVMCI)
  92 
  93 #ifndef PRODUCT
  94 #define JVMCI_CHECK4(type, name, value, doc) assert(name##checked, #name " flag not checked");
  95 #define JVMCI_CHECK3(type, name, doc)        assert(name##checked, #name " flag not checked");
  96   // Ensures that all JVMCI flags are checked by this method.
  97   APPLY_JVMCI_FLAGS(JVMCI_CHECK3, JVMCI_CHECK4)
  98 #undef APPLY_JVMCI_FLAGS
  99 #undef JVMCI_DECLARE_CHECK3
 100 #undef JVMCI_DECLARE_CHECK4
 101 #undef JVMCI_CHECK3
 102 #undef JVMCI_CHECK4
 103 #undef JVMCI_FLAG_CHECKED
 104 #endif
 105 #undef CHECK_NOT_SET
 106   return true;
 107 }