1 /*
   2  * Copyright (c) 1997, 2015, 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  *

 245     guarantee(_buffer_limit == _buffer_size, "_buffer_limit must equal _buffer_size");
 246   }
 247   // verify contents
 248   int n = 0;
 249   for (Stub* s = first(); s != NULL; s = next(s)) {
 250     stub_verify(s);
 251     n++;
 252   }
 253   guarantee(n == number_of_stubs(), "number of stubs inconsistent");
 254   guarantee(_queue_begin != _queue_end || n == 0, "buffer indices must be the same");
 255 }
 256 
 257 
 258 void StubQueue::print() {
 259   MutexLockerEx lock(_mutex);
 260   for (Stub* s = first(); s != NULL; s = next(s)) {
 261     stub_print(s);
 262   }
 263 }
 264 
 265 // Fixup for pregenerated code
 266 void StubQueue::fix_buffer(address buffer, address queue_end, address buffer_end, int number_of_stubs) {
 267   const int extra_bytes = CodeEntryAlignment;
 268   _stub_buffer = buffer;
 269   _queue_begin = 0;
 270   _queue_end = queue_end - buffer;
 271   _number_of_stubs = number_of_stubs;
 272   int size = buffer_end - buffer;
 273   // Note: _buffer_limit must differ from _queue_end in the iteration loops
 274   // => add extra space at the end (preserving alignment for asserts) if needed
 275   if (buffer_end == queue_end) size += extra_bytes;
 276   _buffer_limit = _buffer_size = size;
 277 }

   1 /*
   2  * Copyright (c) 1997, 2016, 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  *

 245     guarantee(_buffer_limit == _buffer_size, "_buffer_limit must equal _buffer_size");
 246   }
 247   // verify contents
 248   int n = 0;
 249   for (Stub* s = first(); s != NULL; s = next(s)) {
 250     stub_verify(s);
 251     n++;
 252   }
 253   guarantee(n == number_of_stubs(), "number of stubs inconsistent");
 254   guarantee(_queue_begin != _queue_end || n == 0, "buffer indices must be the same");
 255 }
 256 
 257 
 258 void StubQueue::print() {
 259   MutexLockerEx lock(_mutex);
 260   for (Stub* s = first(); s != NULL; s = next(s)) {
 261     stub_print(s);
 262   }
 263 }
 264