Mercurial > hg > truffle
annotate src/cpu/zero/vm/stack_zero.cpp @ 1669:cc3fdfeb54b0 hs19-b05
Merge
author | trims |
---|---|
date | Thu, 29 Jul 2010 23:14:56 -0700 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
rev | line source |
---|---|
1383 | 1 /* |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1511
diff
changeset
|
2 * Copyright (c) 2003, 2007, Oracle and/or its affiliates. All rights reserved. |
1383 | 3 * Copyright 2010 Red Hat, Inc. |
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
5 * | |
6 * This code is free software; you can redistribute it and/or modify it | |
7 * under the terms of the GNU General Public License version 2 only, as | |
8 * published by the Free Software Foundation. | |
9 * | |
10 * This code is distributed in the hope that it will be useful, but WITHOUT | |
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
13 * version 2 for more details (a copy is included in the LICENSE file that | |
14 * accompanied this code). | |
15 * | |
16 * You should have received a copy of the GNU General Public License version | |
17 * 2 along with this work; if not, write to the Free Software Foundation, | |
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
19 * | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1511
diff
changeset
|
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1511
diff
changeset
|
21 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1511
diff
changeset
|
22 * questions. |
1383 | 23 * |
24 */ | |
25 | |
26 #include "incls/_precompiled.incl" | |
27 #include "incls/_stack_zero.cpp.incl" | |
28 | |
1511 | 29 int ZeroStack::suggest_size(Thread *thread) const { |
30 assert(needs_setup(), "already set up"); | |
31 return align_size_down(abi_stack_available(thread) / 2, wordSize); | |
32 } | |
33 | |
1383 | 34 void ZeroStack::handle_overflow(TRAPS) { |
35 JavaThread *thread = (JavaThread *) THREAD; | |
36 | |
37 // Set up the frame anchor if it isn't already | |
38 bool has_last_Java_frame = thread->has_last_Java_frame(); | |
39 if (!has_last_Java_frame) { | |
1505 | 40 intptr_t *sp = thread->zero_stack()->sp(); |
1383 | 41 ZeroFrame *frame = thread->top_zero_frame(); |
42 while (frame) { | |
43 if (frame->is_shark_frame()) | |
44 break; | |
45 | |
46 if (frame->is_interpreter_frame()) { | |
47 interpreterState istate = | |
48 frame->as_interpreter_frame()->interpreter_state(); | |
49 if (istate->self_link() == istate) | |
50 break; | |
51 } | |
52 | |
1505 | 53 sp = ((intptr_t *) frame) + 1; |
1383 | 54 frame = frame->next(); |
55 } | |
56 | |
57 if (frame == NULL) | |
58 fatal("unrecoverable stack overflow"); | |
59 | |
1505 | 60 thread->set_last_Java_frame(frame, sp); |
1383 | 61 } |
62 | |
63 // Throw the exception | |
64 switch (thread->thread_state()) { | |
65 case _thread_in_Java: | |
66 InterpreterRuntime::throw_StackOverflowError(thread); | |
67 break; | |
68 | |
69 case _thread_in_vm: | |
70 Exceptions::throw_stack_overflow_exception(thread, __FILE__, __LINE__); | |
71 break; | |
72 | |
73 default: | |
74 ShouldNotReachHere(); | |
75 } | |
76 | |
77 // Reset the frame anchor if necessary | |
78 if (!has_last_Java_frame) | |
79 thread->reset_last_Java_frame(); | |
80 } | |
1505 | 81 |
82 #ifndef PRODUCT | |
83 void ZeroStack::zap(int c) { | |
84 memset(_base, c, available_words() * wordSize); | |
85 } | |
86 #endif // PRODUCT |