1 /* 2 * Copyright (c) 1999, 2006, 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 */ 24 25 # include "incls/_precompiled.incl" 26 # include "incls/_hpi_linux.cpp.incl" 27 28 # include <sys/param.h> 29 # include <dlfcn.h> 30 31 typedef jint (JNICALL *init_t)(GetInterfaceFunc *, void *); 32 33 void hpi::initialize_get_interface(vm_calls_t *callbacks) { 34 char buf[JVM_MAXPATHLEN]; 35 void *hpi_handle; 36 GetInterfaceFunc& getintf = _get_interface; 37 jint (JNICALL * DLL_Initialize)(GetInterfaceFunc *, void *); 38 39 if (HPILibPath && HPILibPath[0]) { 40 strncpy(buf, HPILibPath, JVM_MAXPATHLEN - 1); 41 buf[JVM_MAXPATHLEN - 1] = '\0'; 42 } else { 43 const char *thread_type = "native_threads"; 44 45 os::jvm_path(buf, JVM_MAXPATHLEN); 46 47 #ifdef PRODUCT 48 const char * hpi_lib = "/libhpi.so"; 49 #else 50 char * ptr = strrchr(buf, '/'); 51 assert(strstr(ptr, "/libjvm") == ptr, "invalid library name"); 52 const char * hpi_lib = strstr(ptr, "_g") ? "/libhpi_g.so" : "/libhpi.so"; 53 #endif 54 55 *(strrchr(buf, '/')) = '\0'; /* get rid of /libjvm.so */ 56 char* p = strrchr(buf, '/'); 57 if (p != NULL) p[1] = '\0'; /* get rid of hotspot */ 58 strcat(buf, thread_type); 59 strcat(buf, hpi_lib); 60 } 61 62 if (TraceHPI) tty->print_cr("Loading HPI %s ", buf); 63 #ifdef SPARC 64 // On 64-bit Ubuntu Sparc RTLD_NOW leads to unresolved deps in libpthread.so 65 # define OPEN_MODE RTLD_LAZY 66 #else 67 // We use RTLD_NOW because of bug 4032715 68 # define OPEN_MODE RTLD_NOW 69 #endif 70 hpi_handle = dlopen(buf, OPEN_MODE); 71 #undef OPEN_MODE 72 73 if (hpi_handle == NULL) { 74 if (TraceHPI) tty->print_cr("HPI dlopen failed: %s", dlerror()); 75 return; 76 } 77 DLL_Initialize = CAST_TO_FN_PTR(jint (JNICALL *)(GetInterfaceFunc *, void *), 78 dlsym(hpi_handle, "DLL_Initialize")); 79 if (TraceHPI && DLL_Initialize == NULL) tty->print_cr("HPI dlsym of DLL_Initialize failed: %s", dlerror()); 80 if (DLL_Initialize == NULL || 81 (*DLL_Initialize)(&getintf, callbacks) < 0) { 82 if (TraceHPI) tty->print_cr("HPI DLL_Initialize failed"); 83 return; 84 } 85 if (TraceHPI) tty->print_cr("HPI loaded successfully"); 86 }