Mercurial > hg > graal-compiler
annotate agent/src/share/classes/sun/jvm/hotspot/debugger/linux/sparc/LinuxSPARCCFrame.java @ 6163:b87e5a681416
6310967: SA: jstack -m produce failures in output
Summary: While looking for the sender frame check that the frame pointer should not be less than the stack pointer.
Reviewed-by: dholmes, sla
author | poonam |
---|---|
date | Thu, 14 Jun 2012 02:12:46 -0700 |
parents | c18cbe5936b8 |
children |
rev | line source |
---|---|
0 | 1 /* |
6163 | 2 * Copyright (c) 2006, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
0
diff
changeset
|
21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 package sun.jvm.hotspot.debugger.linux.sparc; | |
26 | |
27 import sun.jvm.hotspot.debugger.*; | |
28 import sun.jvm.hotspot.debugger.sparc.*; | |
29 import sun.jvm.hotspot.debugger.linux.*; | |
30 import sun.jvm.hotspot.debugger.cdbg.*; | |
31 import sun.jvm.hotspot.debugger.cdbg.basic.*; | |
32 | |
33 final public class LinuxSPARCCFrame extends BasicCFrame { | |
34 // package/class internals only | |
35 | |
36 public LinuxSPARCCFrame(LinuxDebugger dbg, Address sp, Address pc, int address_size) { | |
37 super(dbg.getCDebugger()); | |
38 this.sp = sp; | |
39 this.pc = pc; | |
40 this.dbg = dbg; | |
41 this.address_size=address_size; | |
42 if (address_size==8) SPARC_STACK_BIAS = 0x7ff; | |
43 else SPARC_STACK_BIAS = 0x0; | |
44 } | |
45 | |
46 // override base class impl to avoid ELF parsing | |
47 public ClosestSymbol closestSymbolToPC() { | |
48 // try native lookup in debugger. | |
49 return dbg.lookup(dbg.getAddressValue(pc())); | |
50 } | |
51 | |
52 public Address pc() { | |
53 return pc; | |
54 } | |
55 | |
56 public Address localVariableBase() { | |
57 return sp; | |
58 } | |
59 | |
6163 | 60 public CFrame sender(ThreadProxy thread) { |
0 | 61 if (sp == null) { |
62 return null; | |
63 } | |
64 | |
65 Address nextSP = sp.getAddressAt( SPARCThreadContext.R_SP * address_size + SPARC_STACK_BIAS); | |
66 if (nextSP == null) { | |
67 return null; | |
68 } | |
69 Address nextPC = sp.getAddressAt(SPARCThreadContext.R_O7 * address_size + SPARC_STACK_BIAS); | |
70 if (nextPC == null) { | |
71 return null; | |
72 } | |
73 return new LinuxSPARCCFrame(dbg, nextSP, nextPC,address_size); | |
74 } | |
75 | |
76 public static int SPARC_STACK_BIAS; | |
77 private static int address_size; | |
78 private Address pc; | |
79 private Address sp; | |
80 private LinuxDebugger dbg; | |
81 } |