jdk8-mips64-public/hotspot: src/share/vm/utilities/array.cpp@2d4762ec74af

7003748: Decode C stack frames when symbols are presented (PhoneHome project)
Summary: Implemented in-process C native stack frame decoding when symbols are available.
Reviewed-by: coleenp, never

     1 /*

     2  * Copyright (c) 2000, 2010, 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  */

    25 #include "precompiled.hpp"

    26 #include "memory/resourceArea.hpp"

    27 #include "utilities/array.hpp"

    28 #ifdef TARGET_OS_FAMILY_linux

    29 # include "thread_linux.inline.hpp"

    30 #endif

    31 #ifdef TARGET_OS_FAMILY_solaris

    32 # include "thread_solaris.inline.hpp"

    33 #endif

    34 #ifdef TARGET_OS_FAMILY_windows

    35 # include "thread_windows.inline.hpp"

    36 #endif

    39 #ifdef ASSERT

    40 void ResourceArray::init_nesting() {

    41   _nesting = Thread::current()->resource_area()->nesting();

    42 }

    43 #endif

    46 void ResourceArray::sort(size_t esize, ftype f) {

    47   if (!is_empty()) qsort(_data, length(), esize, f);

    48 }

    49 void CHeapArray::sort(size_t esize, ftype f) {

    50   if (!is_empty()) qsort(_data, length(), esize, f);

    51 }

    54 void ResourceArray::expand(size_t esize, int i, int& size) {

    55   // make sure we are expanding within the original resource mark

    56   assert(

    57     _nesting == Thread::current()->resource_area()->nesting(),

    58     "allocating outside original resource mark"

    59   );

    60   // determine new size

    61   if (size == 0) size = 4; // prevent endless loop

    62   while (i >= size) size *= 2;

    63   // allocate and initialize new data section

    64   void* data = resource_allocate_bytes(esize * size);

    65   memcpy(data, _data, esize * length());

    66   _data = data;

    67 }

    70 void CHeapArray::expand(size_t esize, int i, int& size) {

    71   // determine new size

    72   if (size == 0) size = 4; // prevent endless loop

    73   while (i >= size) size *= 2;

    74   // allocate and initialize new data section

    75   void* data = NEW_C_HEAP_ARRAY(char*, esize * size);

    76   memcpy(data, _data, esize * length());

    77   FREE_C_HEAP_ARRAY(char*, _data);

    78   _data = data;

    79 }

    82 void ResourceArray::remove_at(size_t esize, int i) {

    83   assert(0 <= i && i < length(), "index out of bounds");

    84   _length--;

    85   void* dst = (char*)_data + i*esize;

    86   void* src = (char*)dst + esize;

    87   size_t cnt = (length() - i)*esize;

    88   memmove(dst, src, cnt);

    89 }

    91 void CHeapArray::remove_at(size_t esize, int i) {

    92   assert(0 <= i && i < length(), "index out of bounds");

    93   _length--;

    94   void* dst = (char*)_data + i*esize;

    95   void* src = (char*)dst + esize;

    96   size_t cnt = (length() - i)*esize;

    97   memmove(dst, src, cnt);

    98 }

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/utilities/array.cpp@2d4762ec74af

src/share/vm/utilities/array.cpp