jdk8-mips64-public/hotspot: src/os/aix/vm/libperfstat

8189170: Add option to disable stack overflow checking in primordial thread for use with JNI_CreateJavaJVM
Reviewed-by: dcubed

     1 /*

     2  * Copyright 2012, 2013 SAP AG. 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  */

    25 // encapsulates the libperfstat library.

    26 //

    27 // The purpose of this code is to dynamically load the libperfstat library

    28 // instead of statically linking against it. The libperfstat library is an

    29 // AIX-specific library which only exists on AIX, not on PASE. If I want to

    30 // share binaries between AIX and PASE, I cannot directly link against libperfstat.so.

    32 #ifndef OS_AIX_VM_LIBPERFSTAT_AIX_HPP

    33 #define OS_AIX_VM_LIBPERFSTAT_AIX_HPP

    35 #include <libperfstat.h>

    37 class libperfstat {

    39 public:

    41   // Load the libperfstat library (must be in LIBPATH).

    42   // Returns true if succeeded, false if error.

    43   static bool init();

    45   // cleanup of the libo4 porting library.

    46   static void cleanup();

    48   // direct wrappers for the libperfstat functionality. All they do is

    49   // to call the functions with the same name via function pointers.

    50   static int perfstat_cpu_total(perfstat_id_t *name, perfstat_cpu_total_t* userbuff,

    51                                 int sizeof_userbuff, int desired_number);

    53   static int perfstat_memory_total(perfstat_id_t *name, perfstat_memory_total_t* userbuff,

    54                                    int sizeof_userbuff, int desired_number);

    56   static void perfstat_reset();

    57 };

    59 #endif // OS_AIX_VM_LIBPERFSTAT_AIX_HPP

src/os/aix/vm/libperfstat_aix.hpp@427b2fb1944f