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1 /*
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2 * Copyright 1998-2006 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 # include "incls/_precompiled.incl"
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26 # include "incls/_hpi_windows.cpp.incl"
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27
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28 typedef jint (JNICALL *init_t)(GetInterfaceFunc *, void *);
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29
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30 void hpi::initialize_get_interface(vm_calls_t *callbacks)
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31 {
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32 // Build name of HPI.
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33 char lib_name[JVM_MAXPATHLEN];
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34
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35 if (HPILibPath && HPILibPath[0]) {
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36 strncpy(lib_name, HPILibPath, JVM_MAXPATHLEN - 1);
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37 lib_name[JVM_MAXPATHLEN - 1] = '\0';
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38 } else {
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39 os::jvm_path(lib_name, sizeof lib_name);
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40
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41 #ifdef PRODUCT
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42 const char *hpi_lib = "\\hpi.dll";
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43 #else
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44 char *ptr = strrchr(lib_name, '\\');
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45 // On Win98 GetModuleFileName() returns the path in the upper case.
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46 assert(_strnicmp(ptr, "\\jvm",4) == 0, "invalid library name");
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47 const char *hpi_lib = (_strnicmp(ptr, "\\jvm_g",6) == 0) ? "\\hpi_g.dll" : "\\hpi.dll";
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48 #endif
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49
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50 *(::strrchr(lib_name, '\\')) = '\0'; /* get rid of "\\jvm.dll" */
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51 char *p = ::strrchr(lib_name, '\\');
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52 if (p != NULL) *p = '\0'; /* get rid of "\\hotspot" */
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53 strcat(lib_name, hpi_lib);
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54 }
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55
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56 // Load it.
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57 if (TraceHPI) tty->print_cr("Loading HPI %s ", lib_name);
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58 HINSTANCE lib_handle = LoadLibrary(lib_name);
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59 if (lib_handle == NULL) {
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60 if (TraceHPI) tty->print_cr("LoadLibrary failed, code = %d", GetLastError());
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61 return;
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62 }
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63
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64 // Find hpi initializer.
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65 init_t initer = (init_t)GetProcAddress(lib_handle, "DLL_Initialize");
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66 if (initer == NULL) {
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67 if (TraceHPI) tty->print_cr("GetProcAddress failed, errcode = %d", GetLastError());
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68 return;
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69 }
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70
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71 // Call initializer.
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72 jint init_result = (*initer)(&_get_interface, callbacks);
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73 if (init_result < 0) {
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74 if (TraceHPI) tty->print_cr("DLL_Initialize failed, returned %ld", init_result);
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75 return;
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76 }
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77
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78 if (TraceHPI) tty->print_cr("success");
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79 return;
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80 }
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