jdk8-mips64-public/hotspot: src/share/vm/runtime/dtraceJSDT.cpp@a073be2ce5c2

8049043: Load variable through a pointer of an incompatible type in hotspot/src/share/vm/runtime/sharedRuntimeMath.hpp
Summary: Fixed parfait warnings caused by __HI and __LO macros in sharedRuntimeMath.hpp by using a union.
Reviewed-by: kvn

     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 #include "precompiled.hpp"

    26 #include "classfile/javaClasses.hpp"

    27 #include "code/codeBlob.hpp"

    28 #include "memory/allocation.hpp"

    29 #include "prims/jvm.h"

    30 #include "runtime/dtraceJSDT.hpp"

    31 #include "runtime/jniHandles.hpp"

    32 #include "runtime/os.hpp"

    33 #include "utilities/exceptions.hpp"

    34 #include "utilities/globalDefinitions.hpp"

    35 #include "utilities/utf8.hpp"

    37 #ifdef HAVE_DTRACE_H

    39 jlong DTraceJSDT::activate(

    40     jint version, jstring module_name, jint providers_count,

    41     JVM_DTraceProvider* providers, TRAPS) {

    43   size_t count = 0;

    44   RegisteredProbes* probes = NULL;

    46   if (!is_supported()) {

    47     return 0;

    48   }

    50   assert(module_name != NULL, "valid module name");

    51   assert(providers != NULL, "valid provider array");

    53   for (int i = 0; i < providers_count; ++i) {

    54     count += providers[i].probe_count;

    55   }

    56   probes = new RegisteredProbes(count);

    57   count = 0;

    59   for (int i = 0; i < providers_count; ++i) {

    60     assert(providers[i].name != NULL, "valid provider name");

    61     assert(providers[i].probe_count == 0 || providers[i].probes != NULL,

    62            "valid probe count");

    63     for (int j = 0; j < providers[i].probe_count; ++j) {

    64       JVM_DTraceProbe* probe = &(providers[i].probes[j]);

    65       assert(probe != NULL, "valid probe");

    66       assert(probe->method != NULL, "valid method");

    67       assert(probe->name != NULL, "valid probe name");

    68       assert(probe->function != NULL, "valid probe function spec");

    69       methodHandle h_method =

    70         methodHandle(THREAD, Method::resolve_jmethod_id(probe->method));

    71       nmethod* nm = AdapterHandlerLibrary::create_dtrace_nmethod(h_method);

    72       if (nm == NULL) {

    73         delete probes;

    74         THROW_MSG_0(vmSymbols::java_lang_RuntimeException(),

    75           "Unable to register DTrace probes (CodeCache: no room for DTrace nmethods).");

    76       }

    77       h_method()->set_not_compilable();

    78       h_method()->set_code(h_method, nm);

    79       probes->nmethod_at_put(count++, nm);

    80     }

    81   }

    83   int handle = pd_activate((void*)probes,

    84     module_name, providers_count, providers);

    85   if (handle < 0) {

    86     delete probes;

    87     THROW_MSG_0(vmSymbols::java_lang_RuntimeException(),

    88       "Unable to register DTrace probes (internal error).");

    89   }

    90   probes->set_helper_handle(handle);

    91   return RegisteredProbes::toOpaqueProbes(probes);

    92 }

    94 jboolean DTraceJSDT::is_probe_enabled(jmethodID method) {

    95   Method* m = Method::resolve_jmethod_id(method);

    96   return nativeInstruction_at(m->code()->trap_address())->is_dtrace_trap();

    97 }

    99 void DTraceJSDT::dispose(OpaqueProbes probes) {

   100   RegisteredProbes* p = RegisteredProbes::toRegisteredProbes(probes);

   101   if (probes != -1 && p != NULL) {

   102     pd_dispose(p->helper_handle());

   103     delete p;

   104   }

   105 }

   107 jboolean DTraceJSDT::is_supported() {

   108   return pd_is_supported();

   109 }

   111 #else // HAVE_DTRACE_H

   113 jlong DTraceJSDT::activate(

   114     jint version, jstring module_name, jint providers_count,

   115     JVM_DTraceProvider* providers, TRAPS) {

   116   return 0;

   117 }

   119 jboolean DTraceJSDT::is_probe_enabled(jmethodID method) {

   120   return false;

   121 }

   123 void DTraceJSDT::dispose(OpaqueProbes probes) {

   124   return;

   125 }

   127 jboolean DTraceJSDT::is_supported() {

   128   return false;

   129 }

   131 #endif // ndef HAVE_DTRACE_H

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/runtime/dtraceJSDT.cpp@a073be2ce5c2

src/share/vm/runtime/dtraceJSDT.cpp