Mercurial > jdk8-mips64-public > hotspot / annotate
test/compiler/7116216/StackOverflow.java@dca455dea3a7 (annotated)
test/compiler/7116216/StackOverflow.java
Tue, 20 Dec 2011 12:33:05 +0100
- author
- bdelsart
- date
- Tue, 20 Dec 2011 12:33:05 +0100
- changeset 3372
- dca455dea3a7
- child 3407
- 35acf8f0a2e4
- permissions
- -rw-r--r--
7116216: StackOverflow GC crash
Summary: GC crash for explicit stack overflow checks after a C2I transition.
Reviewed-by: coleenp, never
Contributed-by: yang02.wang@sap.com, bertrand.delsart@oracle.com
| bdelsart@3372 | 1 | /* |
| bdelsart@3372 | 2 | * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. |
| bdelsart@3372 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| bdelsart@3372 | 4 | * |
| bdelsart@3372 | 5 | * This code is free software; you can redistribute it and/or modify it |
| bdelsart@3372 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| bdelsart@3372 | 7 | * published by the Free Software Foundation. |
| bdelsart@3372 | 8 | * |
| bdelsart@3372 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| bdelsart@3372 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| bdelsart@3372 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| bdelsart@3372 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| bdelsart@3372 | 13 | * accompanied this code). |
| bdelsart@3372 | 14 | * |
| bdelsart@3372 | 15 | * You should have received a copy of the GNU General Public License version |
| bdelsart@3372 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| bdelsart@3372 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| bdelsart@3372 | 18 | * |
| bdelsart@3372 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| bdelsart@3372 | 20 | * or visit www.oracle.com if you need additional information or have any |
| bdelsart@3372 | 21 | * questions. |
| bdelsart@3372 | 22 | * |
| bdelsart@3372 | 23 | */ |
| bdelsart@3372 | 24 | |
| bdelsart@3372 | 25 | /** |
| bdelsart@3372 | 26 | * @test |
| bdelsart@3372 | 27 | * @bug 7116216 |
| bdelsart@3372 | 28 | * @summary The vm crashes when GC happens during throwing a StackOverflow exception |
| bdelsart@3372 | 29 | * |
| bdelsart@3372 | 30 | * @run main/othervm -Xcomp -Xbatch StackOverflow |
| bdelsart@3372 | 31 | */ |
| bdelsart@3372 | 32 | |
| bdelsart@3372 | 33 | class StackOverflow { |
| bdelsart@3372 | 34 | static String stackOverflow_largeFrame_liveOopForGC; |
| bdelsart@3372 | 35 | |
| bdelsart@3372 | 36 | public static int stackOverflow_largeFrame(int call_count, String liveOopForGC) { |
| bdelsart@3372 | 37 | try { |
| bdelsart@3372 | 38 | int return_count = stackOverflow_largeFrame(++call_count, liveOopForGC); |
| bdelsart@3372 | 39 | if (return_count == 0) { |
| bdelsart@3372 | 40 | try { |
| bdelsart@3372 | 41 | LargeFrame.method_with_many_locals(liveOopForGC, 2,3,4,5,6,7,liveOopForGC); |
| bdelsart@3372 | 42 | } catch (StackOverflowError e2) { |
| bdelsart@3372 | 43 | // access liveOopForGC to make it a live variable |
| bdelsart@3372 | 44 | stackOverflow_largeFrame_liveOopForGC = liveOopForGC; |
| bdelsart@3372 | 45 | } |
| bdelsart@3372 | 46 | } |
| bdelsart@3372 | 47 | return return_count - 1; |
| bdelsart@3372 | 48 | } catch (StackOverflowError e) { |
| bdelsart@3372 | 49 | // Return a value that is large enough such that no unrecoverable |
| bdelsart@3372 | 50 | // stack overflow will occur afterwards, but that is small enough |
| bdelsart@3372 | 51 | // such that calling LargeFrame.method_with_many_locals() will |
| bdelsart@3372 | 52 | // cause a StackOverflowError. |
| bdelsart@3372 | 53 | // Don't use a call here because we're out of stack space anyway! |
| bdelsart@3372 | 54 | int tmp = call_count / 2; |
| bdelsart@3372 | 55 | return (tmp < 100 ? tmp : 100); |
| bdelsart@3372 | 56 | } |
| bdelsart@3372 | 57 | } |
| bdelsart@3372 | 58 | public static void main(String args[]) { |
| bdelsart@3372 | 59 | LargeFrame.method_with_many_locals(new Object(), 2,3,4,5,6,7,new Object()); |
| bdelsart@3372 | 60 | |
| bdelsart@3372 | 61 | stackOverflow_largeFrame(0, "this is a live oop to test GC"); |
| bdelsart@3372 | 62 | System.out.println("finished ok!"); |
| bdelsart@3372 | 63 | } |
| bdelsart@3372 | 64 | } |
