Mercurial > jdk8-mips64-public > hotspot / annotate
src/share/vm/runtime/dtraceJSDT.hpp@eef07cd490d4 (annotated)
src/share/vm/runtime/dtraceJSDT.hpp
Wed, 03 Jul 2019 20:42:37 +0800
- author
- aoqi
- date
- Wed, 03 Jul 2019 20:42:37 +0800
- changeset 9637
- eef07cd490d4
- parent 6876
- 710a3c8b516e
- permissions
- -rw-r--r--
Merge
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 4 | * |
| aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 7 | * published by the Free Software Foundation. |
| aoqi@0 | 8 | * |
| aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 13 | * accompanied this code). |
| aoqi@0 | 14 | * |
| aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 18 | * |
| aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 21 | * questions. |
| aoqi@0 | 22 | * |
| aoqi@0 | 23 | */ |
| aoqi@0 | 24 | |
| aoqi@1 | 25 | /* |
| aoqi@1 | 26 | * This file has been modified by Loongson Technology in 2015. These |
| aoqi@1 | 27 | * modifications are Copyright (c) 2015 Loongson Technology, and are made |
| aoqi@1 | 28 | * available on the same license terms set forth above. |
| aoqi@1 | 29 | */ |
| aoqi@1 | 30 | |
| aoqi@0 | 31 | #ifndef SHARE_VM_RUNTIME_DTRACEJSDT_HPP |
| aoqi@0 | 32 | #define SHARE_VM_RUNTIME_DTRACEJSDT_HPP |
| aoqi@0 | 33 | |
| aoqi@0 | 34 | #include "code/nmethod.hpp" |
| aoqi@0 | 35 | #ifdef TARGET_ARCH_x86 |
| aoqi@0 | 36 | # include "nativeInst_x86.hpp" |
| aoqi@0 | 37 | #endif |
| aoqi@0 | 38 | #ifdef TARGET_ARCH_sparc |
| aoqi@0 | 39 | # include "nativeInst_sparc.hpp" |
| aoqi@0 | 40 | #endif |
| aoqi@0 | 41 | #ifdef TARGET_ARCH_zero |
| aoqi@0 | 42 | # include "nativeInst_zero.hpp" |
| aoqi@0 | 43 | #endif |
| aoqi@0 | 44 | #ifdef TARGET_ARCH_arm |
| aoqi@0 | 45 | # include "nativeInst_arm.hpp" |
| aoqi@0 | 46 | #endif |
| aoqi@0 | 47 | #ifdef TARGET_ARCH_ppc |
| aoqi@0 | 48 | # include "nativeInst_ppc.hpp" |
| aoqi@0 | 49 | #endif |
| aoqi@1 | 50 | #ifdef TARGET_ARCH_mips |
| aoqi@1 | 51 | # include "nativeInst_mips.hpp" |
| aoqi@1 | 52 | #endif |
| aoqi@0 | 53 | |
| aoqi@0 | 54 | class RegisteredProbes; |
| aoqi@0 | 55 | typedef jlong OpaqueProbes; |
| aoqi@0 | 56 | |
| aoqi@0 | 57 | class DTraceJSDT : AllStatic { |
| aoqi@0 | 58 | private: |
| aoqi@0 | 59 | |
| aoqi@0 | 60 | static int pd_activate(void* moduleBaseAddress, jstring module, |
| aoqi@0 | 61 | jint providers_count, JVM_DTraceProvider* providers); |
| aoqi@0 | 62 | static void pd_dispose(int handle); |
| aoqi@0 | 63 | static jboolean pd_is_supported(); |
| aoqi@0 | 64 | |
| aoqi@0 | 65 | public: |
| aoqi@0 | 66 | |
| aoqi@0 | 67 | static OpaqueProbes activate( |
| aoqi@0 | 68 | jint version, jstring module_name, jint providers_count, |
| aoqi@0 | 69 | JVM_DTraceProvider* providers, TRAPS); |
| aoqi@0 | 70 | static jboolean is_probe_enabled(jmethodID method); |
| aoqi@0 | 71 | static void dispose(OpaqueProbes handle); |
| aoqi@0 | 72 | static jboolean is_supported(); |
| aoqi@0 | 73 | }; |
| aoqi@0 | 74 | |
| aoqi@0 | 75 | class RegisteredProbes : public CHeapObj<mtInternal> { |
| aoqi@0 | 76 | private: |
| aoqi@0 | 77 | nmethod** _nmethods; // all the probe methods |
| aoqi@0 | 78 | size_t _count; // number of probe methods |
| aoqi@0 | 79 | int _helper_handle; // DTrace-assigned identifier |
| aoqi@0 | 80 | |
| aoqi@0 | 81 | public: |
| aoqi@0 | 82 | RegisteredProbes(size_t count) { |
| aoqi@0 | 83 | _count = count; |
| aoqi@0 | 84 | _nmethods = NEW_C_HEAP_ARRAY(nmethod*, count, mtInternal); |
| aoqi@0 | 85 | } |
| aoqi@0 | 86 | |
| aoqi@0 | 87 | ~RegisteredProbes() { |
| aoqi@0 | 88 | for (size_t i = 0; i < _count; ++i) { |
| aoqi@0 | 89 | // Let the sweeper reclaim it |
| aoqi@0 | 90 | _nmethods[i]->make_not_entrant(); |
| aoqi@0 | 91 | _nmethods[i]->method()->clear_code(); |
| aoqi@0 | 92 | } |
| aoqi@0 | 93 | FREE_C_HEAP_ARRAY(nmethod*, _nmethods, mtInternal); |
| aoqi@0 | 94 | _nmethods = NULL; |
| aoqi@0 | 95 | _count = 0; |
| aoqi@0 | 96 | } |
| aoqi@0 | 97 | |
| aoqi@0 | 98 | static RegisteredProbes* toRegisteredProbes(OpaqueProbes p) { |
| aoqi@0 | 99 | return (RegisteredProbes*)(intptr_t)p; |
| aoqi@0 | 100 | } |
| aoqi@0 | 101 | |
| aoqi@0 | 102 | static OpaqueProbes toOpaqueProbes(RegisteredProbes* p) { |
| aoqi@0 | 103 | return (OpaqueProbes)(intptr_t)p; |
| aoqi@0 | 104 | } |
| aoqi@0 | 105 | |
| aoqi@0 | 106 | void set_helper_handle(int handle) { _helper_handle = handle; } |
| aoqi@0 | 107 | int helper_handle() const { return _helper_handle; } |
| aoqi@0 | 108 | |
| aoqi@0 | 109 | nmethod* nmethod_at(size_t i) { |
| aoqi@0 | 110 | assert(i >= 0 && i < _count, "bad nmethod index"); |
| aoqi@0 | 111 | return _nmethods[i]; |
| aoqi@0 | 112 | } |
| aoqi@0 | 113 | |
| aoqi@0 | 114 | void nmethod_at_put(size_t i, nmethod* nm) { |
| aoqi@0 | 115 | assert(i >= 0 && i < _count, "bad nmethod index"); |
| aoqi@0 | 116 | _nmethods[i] = nm; |
| aoqi@0 | 117 | } |
| aoqi@0 | 118 | }; |
| aoqi@0 | 119 | |
| aoqi@0 | 120 | #endif // SHARE_VM_RUNTIME_DTRACEJSDT_HPP |
