Tue, 23 Nov 2010 13:22:55 -0800
6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg
1 /*
2 * Copyright (c) 1997, 2010, 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 #ifndef SHARE_VM_RUNTIME_DTRACEJSDT_HPP
26 #define SHARE_VM_RUNTIME_DTRACEJSDT_HPP
28 #include "code/nmethod.hpp"
29 #ifdef TARGET_ARCH_x86
30 # include "nativeInst_x86.hpp"
31 #endif
32 #ifdef TARGET_ARCH_sparc
33 # include "nativeInst_sparc.hpp"
34 #endif
35 #ifdef TARGET_ARCH_zero
36 # include "nativeInst_zero.hpp"
37 #endif
39 class RegisteredProbes;
40 typedef jlong OpaqueProbes;
42 class DTraceJSDT : AllStatic {
43 private:
45 static int pd_activate(void* moduleBaseAddress, jstring module,
46 jint providers_count, JVM_DTraceProvider* providers);
47 static void pd_dispose(int handle);
48 static jboolean pd_is_supported();
50 public:
52 static OpaqueProbes activate(
53 jint version, jstring module_name, jint providers_count,
54 JVM_DTraceProvider* providers, TRAPS);
55 static jboolean is_probe_enabled(jmethodID method);
56 static void dispose(OpaqueProbes handle);
57 static jboolean is_supported();
58 };
60 class RegisteredProbes : public CHeapObj {
61 private:
62 nmethod** _nmethods; // all the probe methods
63 size_t _count; // number of probe methods
64 int _helper_handle; // DTrace-assigned identifier
66 public:
67 RegisteredProbes(size_t count) {
68 _count = count;
69 _nmethods = NEW_C_HEAP_ARRAY(nmethod*, count);
70 }
72 ~RegisteredProbes() {
73 for (size_t i = 0; i < _count; ++i) {
74 // Let the sweeper reclaim it
75 _nmethods[i]->make_not_entrant();
76 _nmethods[i]->method()->clear_code();
77 }
78 FREE_C_HEAP_ARRAY(nmethod*, _nmethods);
79 _nmethods = NULL;
80 _count = 0;
81 }
83 static RegisteredProbes* toRegisteredProbes(OpaqueProbes p) {
84 return (RegisteredProbes*)(intptr_t)p;
85 }
87 static OpaqueProbes toOpaqueProbes(RegisteredProbes* p) {
88 return (OpaqueProbes)(intptr_t)p;
89 }
91 void set_helper_handle(int handle) { _helper_handle = handle; }
92 int helper_handle() const { return _helper_handle; }
94 nmethod* nmethod_at(size_t i) {
95 assert(i >= 0 && i < _count, "bad nmethod index");
96 return _nmethods[i];
97 }
99 void nmethod_at_put(size_t i, nmethod* nm) {
100 assert(i >= 0 && i < _count, "bad nmethod index");
101 _nmethods[i] = nm;
102 }
103 };
105 #endif // SHARE_VM_RUNTIME_DTRACEJSDT_HPP