1 /*
2 * Copyright (c) 2003, 2012, 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 *
43 // try native lookup in debugger.
44 return dbg.lookup(dbg.getAddressValue(pc()));
45 }
46
47 public Address pc() {
48 return rip;
49 }
50
51 public Address localVariableBase() {
52 return rbp;
53 }
54
55 public CFrame sender(ThreadProxy thread) {
56 AMD64ThreadContext context = (AMD64ThreadContext) thread.getContext();
57 Address rsp = context.getRegisterAsAddress(AMD64ThreadContext.RSP);
58
59 if ( (rbp == null) || rbp.lessThan(rsp) ) {
60 return null;
61 }
62
63 Address nextRBP = rbp.getAddressAt( 0 * ADDRESS_SIZE);
64 if (nextRBP == null) {
65 return null;
66 }
67 Address nextPC = rbp.getAddressAt( 1 * ADDRESS_SIZE);
68 if (nextPC == null) {
69 return null;
70 }
71 return new BsdAMD64CFrame(dbg, nextRBP, nextPC);
72 }
73
74 // package/class internals only
75 private static final int ADDRESS_SIZE = 8;
76 private Address rip;
77 private Address rbp;
78 private BsdDebugger dbg;
79 }
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1 /*
2 * Copyright (c) 2003, 2020, 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 *
43 // try native lookup in debugger.
44 return dbg.lookup(dbg.getAddressValue(pc()));
45 }
46
47 public Address pc() {
48 return rip;
49 }
50
51 public Address localVariableBase() {
52 return rbp;
53 }
54
55 public CFrame sender(ThreadProxy thread) {
56 AMD64ThreadContext context = (AMD64ThreadContext) thread.getContext();
57 Address rsp = context.getRegisterAsAddress(AMD64ThreadContext.RSP);
58
59 if ( (rbp == null) || rbp.lessThan(rsp) ) {
60 return null;
61 }
62
63 // Check alignment of rbp
64 if (dbg.getAddressValue(rbp) % ADDRESS_SIZE != 0) {
65 return null;
66 }
67
68 Address nextRBP = rbp.getAddressAt( 0 * ADDRESS_SIZE);
69 if (nextRBP == null || nextRBP.lessThanOrEqual(rbp)) {
70 return null;
71 }
72 Address nextPC = rbp.getAddressAt( 1 * ADDRESS_SIZE);
73 if (nextPC == null) {
74 return null;
75 }
76 return new BsdAMD64CFrame(dbg, nextRBP, nextPC);
77 }
78
79 // package/class internals only
80 private static final int ADDRESS_SIZE = 8;
81 private Address rip;
82 private Address rbp;
83 private BsdDebugger dbg;
84 }
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