jdk8-mips64-public/hotspot: src/share/vm/runtime/dtraceJSDT.hpp@2a33b32dd03c

#7046 Disable the compilation when branch offset is beyond short branch
Contributed-by: fujie, aoqi

     1 /*

     2  * Copyright (c) 1997, 2012, 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  */

    25 /*

    26  * This file has been modified by Loongson Technology in 2015. These

    27  * modifications are Copyright (c) 2015 Loongson Technology, and are made

    28  * available on the same license terms set forth above.

    29  */

    31 #ifndef SHARE_VM_RUNTIME_DTRACEJSDT_HPP

    32 #define SHARE_VM_RUNTIME_DTRACEJSDT_HPP

    34 #include "code/nmethod.hpp"

    35 #ifdef TARGET_ARCH_x86

    36 # include "nativeInst_x86.hpp"

    37 #endif

    38 #ifdef TARGET_ARCH_sparc

    39 # include "nativeInst_sparc.hpp"

    40 #endif

    41 #ifdef TARGET_ARCH_zero

    42 # include "nativeInst_zero.hpp"

    43 #endif

    44 #ifdef TARGET_ARCH_arm

    45 # include "nativeInst_arm.hpp"

    46 #endif

    47 #ifdef TARGET_ARCH_ppc

    48 # include "nativeInst_ppc.hpp"

    49 #endif

    50 #ifdef TARGET_ARCH_mips

    51 # include "nativeInst_mips.hpp"

    52 #endif

    54 class RegisteredProbes;

    55 typedef jlong OpaqueProbes;

    57 class DTraceJSDT : AllStatic {

    58  private:

    60   static int pd_activate(void* moduleBaseAddress, jstring module,

    61       jint providers_count, JVM_DTraceProvider* providers);

    62   static void pd_dispose(int handle);

    63   static jboolean pd_is_supported();

    65  public:

    67   static OpaqueProbes activate(

    68       jint version, jstring module_name, jint providers_count,

    69       JVM_DTraceProvider* providers, TRAPS);

    70   static jboolean is_probe_enabled(jmethodID method);

    71   static void dispose(OpaqueProbes handle);

    72   static jboolean is_supported();

    73 };

    75 class RegisteredProbes : public CHeapObj<mtInternal> {

    76  private:

    77   nmethod** _nmethods;      // all the probe methods

    78   size_t    _count;         // number of probe methods

    79   int       _helper_handle; // DTrace-assigned identifier

    81  public:

    82   RegisteredProbes(size_t count) {

    83     _count = count;

    84     _nmethods = NEW_C_HEAP_ARRAY(nmethod*, count, mtInternal);

    85   }

    87   ~RegisteredProbes() {

    88     for (size_t i = 0; i < _count; ++i) {

    89       // Let the sweeper reclaim it

    90       _nmethods[i]->make_not_entrant();

    91       _nmethods[i]->method()->clear_code();

    92     }

    93     FREE_C_HEAP_ARRAY(nmethod*, _nmethods, mtInternal);

    94     _nmethods = NULL;

    95     _count = 0;

    96   }

    98   static RegisteredProbes* toRegisteredProbes(OpaqueProbes p) {

    99     return (RegisteredProbes*)(intptr_t)p;

   100   }

   102   static OpaqueProbes toOpaqueProbes(RegisteredProbes* p) {

   103     return (OpaqueProbes)(intptr_t)p;

   104   }

   106   void set_helper_handle(int handle) { _helper_handle = handle; }

   107   int helper_handle() const { return _helper_handle; }

   109   nmethod* nmethod_at(size_t i) {

   110     assert(i >= 0 && i < _count, "bad nmethod index");

   111     return _nmethods[i];

   112   }

   114   void nmethod_at_put(size_t i, nmethod* nm) {

   115     assert(i >= 0 && i < _count, "bad nmethod index");

   116     _nmethods[i] = nm;

   117   }

   118 };

   120 #endif // SHARE_VM_RUNTIME_DTRACEJSDT_HPP

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