Mercurial > hg > truffle
annotate src/share/vm/runtime/dtraceJSDT.hpp @ 6862:8a5ea0a9ccc4
7127708: G1: change task num types from int to uint in concurrent mark
Summary: Change the type of various task num fields, parameters etc to unsigned and rename them to be more consistent with the other collectors. Code changes were also reviewed by Vitaly Davidovich.
Reviewed-by: johnc
Contributed-by: Kaushik Srenevasan <kaushik@twitter.com>
author | johnc |
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date | Sat, 06 Oct 2012 01:17:44 -0700 |
parents | d2a62e0f25eb |
children | b9a9ed0f8eeb |
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1 /* |
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2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 * |
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23 */ |
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24 |
1972 | 25 #ifndef SHARE_VM_RUNTIME_DTRACEJSDT_HPP |
26 #define SHARE_VM_RUNTIME_DTRACEJSDT_HPP | |
27 | |
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 | |
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38 #ifdef TARGET_ARCH_arm |
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39 # include "nativeInst_arm.hpp" |
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40 #endif |
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41 #ifdef TARGET_ARCH_ppc |
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42 # include "nativeInst_ppc.hpp" |
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43 #endif |
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45 class RegisteredProbes; |
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46 typedef jlong OpaqueProbes; |
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47 |
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48 class DTraceJSDT : AllStatic { |
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49 private: |
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50 |
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51 static int pd_activate(void* moduleBaseAddress, jstring module, |
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52 jint providers_count, JVM_DTraceProvider* providers); |
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53 static void pd_dispose(int handle); |
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54 static jboolean pd_is_supported(); |
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55 |
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56 public: |
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57 |
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58 static OpaqueProbes activate( |
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59 jint version, jstring module_name, jint providers_count, |
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60 JVM_DTraceProvider* providers, TRAPS); |
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61 static jboolean is_probe_enabled(jmethodID method); |
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62 static void dispose(OpaqueProbes handle); |
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63 static jboolean is_supported(); |
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64 }; |
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65 |
6197 | 66 class RegisteredProbes : public CHeapObj<mtInternal> { |
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67 private: |
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68 nmethod** _nmethods; // all the probe methods |
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69 size_t _count; // number of probe methods |
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70 int _helper_handle; // DTrace-assigned identifier |
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71 |
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72 public: |
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73 RegisteredProbes(size_t count) { |
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74 _count = count; |
6197 | 75 _nmethods = NEW_C_HEAP_ARRAY(nmethod*, count, mtInternal); |
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76 } |
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77 |
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78 ~RegisteredProbes() { |
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79 for (size_t i = 0; i < _count; ++i) { |
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80 // Let the sweeper reclaim it |
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81 _nmethods[i]->make_not_entrant(); |
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82 _nmethods[i]->method()->clear_code(); |
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83 } |
6197 | 84 FREE_C_HEAP_ARRAY(nmethod*, _nmethods, mtInternal); |
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85 _nmethods = NULL; |
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86 _count = 0; |
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87 } |
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88 |
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89 static RegisteredProbes* toRegisteredProbes(OpaqueProbes p) { |
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90 return (RegisteredProbes*)(intptr_t)p; |
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91 } |
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92 |
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93 static OpaqueProbes toOpaqueProbes(RegisteredProbes* p) { |
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94 return (OpaqueProbes)(intptr_t)p; |
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95 } |
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96 |
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97 void set_helper_handle(int handle) { _helper_handle = handle; } |
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98 int helper_handle() const { return _helper_handle; } |
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99 |
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100 nmethod* nmethod_at(size_t i) { |
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101 assert(i >= 0 && i < _count, "bad nmethod index"); |
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102 return _nmethods[i]; |
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103 } |
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104 |
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105 void nmethod_at_put(size_t i, nmethod* nm) { |
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106 assert(i >= 0 && i < _count, "bad nmethod index"); |
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107 _nmethods[i] = nm; |
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108 } |
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109 }; |
1972 | 110 |
111 #endif // SHARE_VM_RUNTIME_DTRACEJSDT_HPP |