jdk8-mips64-public/hotspot: src/os/linux/vm/hpi

     1 /*

     2  * Copyright 1999-2006 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  *

    23  */

    25 # include "incls/_precompiled.incl"

    26 # include "incls/_hpi_linux.cpp.incl"

    28 # include <sys/param.h>

    29 # include <dlfcn.h>

    31 typedef jint (JNICALL *init_t)(GetInterfaceFunc *, void *);

    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 *);

    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";

    45       os::jvm_path(buf, JVM_MAXPATHLEN);

    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

    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     }

    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

    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 }

src/os/linux/vm/hpi_linux.cpp@9c2ecc2ffb12