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  * @test WBStackSize
  26  * @summary verify that whitebox functions getThreadFullStackSize() and getThreadRemainingStackSize are working
  27  * @library /testlibrary /testlibrary/whitebox
  28  * @build WBStackSize
  29  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  30  *                              sun.hotspot.WhiteBox$WhiteBoxPermission
  31  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xss512k WBStackSize
  32  */
  33 
  34 /*
  35  * The test may product a false failure if too big StackYellowPages/StackRedPages/ShackShadowPages
  36  * VM options are specified. The proper test would retrieve the page size from VM and account for these options
  37  * instead of check below:
  38  *     Math.abs(actualStackSize - configStackSize) > configStackSize * 0.1
  39  *
  40  * Please file a test bug, if this is a problem.
  41  */
  42 
  43 import sun.hotspot.WhiteBox;
  44 
  45 public class WBStackSize {
  46 
  47     static final long K = 1024;
  48 
  49     static final long MIN_STACK_SIZE = 8 * K;
  50     static final long MAX_STACK_SIZE_ALLOCATED_IN_MAIN = 200 * K; // current value is about 130k on 64-bit platforms
  51 
  52     static final WhiteBox wb = WhiteBox.getWhiteBox();
  53 
  54     static long stackSizeOnOverflow = -1;
  55 
  56     static int eatAllStack() {
  57         return eatAllStack() * 2;
  58     }
  59 
  60     static void testStackOverflow() {
  61 
  62         stackSizeOnOverflow = wb.getThreadRemainingStackSize();
  63 

   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  * @test WBStackSize
  26  * @summary verify that whitebox functions getThreadFullStackSize() and getThreadRemainingStackSize are working
  27  * @library /testlibrary /../../test/lib
  28  * @build WBStackSize
  29  * @run main ClassFileInstaller jdk.testlib.WhiteBox
  30  *                              jdk.testlib.WhiteBox$WhiteBoxPermission
  31  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xss512k WBStackSize
  32  */
  33 
  34 /*
  35  * The test may product a false failure if too big StackYellowPages/StackRedPages/ShackShadowPages
  36  * VM options are specified. The proper test would retrieve the page size from VM and account for these options
  37  * instead of check below:
  38  *     Math.abs(actualStackSize - configStackSize) > configStackSize * 0.1
  39  *
  40  * Please file a test bug, if this is a problem.
  41  */
  42 
  43 import jdk.testlib.WhiteBox;
  44 
  45 public class WBStackSize {
  46 
  47     static final long K = 1024;
  48 
  49     static final long MIN_STACK_SIZE = 8 * K;
  50     static final long MAX_STACK_SIZE_ALLOCATED_IN_MAIN = 200 * K; // current value is about 130k on 64-bit platforms
  51 
  52     static final WhiteBox wb = WhiteBox.getWhiteBox();
  53 
  54     static long stackSizeOnOverflow = -1;
  55 
  56     static int eatAllStack() {
  57         return eatAllStack() * 2;
  58     }
  59 
  60     static void testStackOverflow() {
  61 
  62         stackSizeOnOverflow = wb.getThreadRemainingStackSize();
  63