1 /* |
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2 * Copyright (c) 2008, 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. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 #include <dlfcn.h> |
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27 #include <stdlib.h> |
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28 |
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29 #include <jvm.h> |
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30 |
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31 #include "jvm_symbols.h" |
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32 |
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33 JvmSymbols* lookupJvmSymbols() { |
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34 JvmSymbols* syms = (JvmSymbols*)malloc(sizeof(JvmSymbols)); |
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35 if (syms != NULL) { |
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36 syms->GetVersion = (GetVersion_t) |
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37 dlsym(RTLD_DEFAULT, "JVM_DTraceGetVersion"); |
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38 syms->IsSupported = (IsSupported_t) |
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39 dlsym(RTLD_DEFAULT, "JVM_DTraceIsSupported"); |
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40 syms->Activate = (Activate_t) |
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41 dlsym(RTLD_DEFAULT, "JVM_DTraceActivate"); |
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42 syms->Dispose = (Dispose_t) |
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43 dlsym(RTLD_DEFAULT, "JVM_DTraceDispose"); |
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44 syms->IsProbeEnabled = (IsProbeEnabled_t) |
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45 dlsym(RTLD_DEFAULT, "JVM_DTraceIsProbeEnabled"); |
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46 |
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47 if ( syms->GetVersion == NULL || syms->Activate == NULL || |
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48 syms->IsProbeEnabled == NULL || syms->Dispose == NULL || |
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49 syms->IsSupported == NULL) { |
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50 free(syms); |
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51 syms = NULL; |
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52 } |
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53 } |
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54 return syms; |
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55 } |
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