Wed, 02 Feb 2011 11:35:26 -0500
7016023: Enable building ARM and PPC from src/closed repository
Reviewed-by: dholmes, bdelsart
1 /*
2 * Copyright (c) 2002, 2010, 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 *
23 */
25 #ifndef SHARE_VM_RUNTIME_JAVAFRAMEANCHOR_HPP
26 #define SHARE_VM_RUNTIME_JAVAFRAMEANCHOR_HPP
28 #include "utilities/globalDefinitions.hpp"
29 #ifdef TARGET_OS_ARCH_linux_x86
30 # include "orderAccess_linux_x86.inline.hpp"
31 #endif
32 #ifdef TARGET_OS_ARCH_linux_sparc
33 # include "orderAccess_linux_sparc.inline.hpp"
34 #endif
35 #ifdef TARGET_OS_ARCH_linux_zero
36 # include "orderAccess_linux_zero.inline.hpp"
37 #endif
38 #ifdef TARGET_OS_ARCH_solaris_x86
39 # include "orderAccess_solaris_x86.inline.hpp"
40 #endif
41 #ifdef TARGET_OS_ARCH_solaris_sparc
42 # include "orderAccess_solaris_sparc.inline.hpp"
43 #endif
44 #ifdef TARGET_OS_ARCH_windows_x86
45 # include "orderAccess_windows_x86.inline.hpp"
46 #endif
47 #ifdef TARGET_OS_ARCH_linux_arm
48 # include "orderAccess_linux_arm.inline.hpp"
49 #endif
50 #ifdef TARGET_OS_ARCH_linux_ppc
51 # include "orderAccess_linux_ppc.inline.hpp"
52 #endif
53 //
54 // An object for encapsulating the machine/os dependent part of a JavaThread frame state
55 //
56 class JavaThread;
58 class JavaFrameAnchor VALUE_OBJ_CLASS_SPEC {
59 // Too many friends...
60 friend class CallNativeDirectNode;
61 friend class OptoRuntime;
62 friend class Runtime1;
63 friend class StubAssembler;
64 friend class CallRuntimeDirectNode;
65 friend class MacroAssembler;
66 friend class InterpreterGenerator;
67 friend class LIR_Assembler;
68 friend class GraphKit;
69 friend class StubGenerator;
70 friend class JavaThread;
71 friend class frame;
72 friend class VMStructs;
73 friend class BytecodeInterpreter;
74 friend class JavaCallWrapper;
76 private:
77 //
78 // Whenever _last_Java_sp != NULL other anchor fields MUST be valid!
79 // The stack may not be walkable [check with walkable() ] but the values must be valid.
80 // The profiler apparently depends on this.
81 //
82 intptr_t* volatile _last_Java_sp;
84 // Whenever we call from Java to native we can not be assured that the return
85 // address that composes the last_Java_frame will be in an accessible location
86 // so calls from Java to native store that pc (or one good enough to locate
87 // the oopmap) in the frame anchor. Since the frames that call from Java to
88 // native are never deoptimized we never need to patch the pc and so this
89 // is acceptable.
90 volatile address _last_Java_pc;
92 // tells whether the last Java frame is set
93 // It is important that when last_Java_sp != NULL that the rest of the frame
94 // anchor (including platform specific) all be valid.
96 bool has_last_Java_frame() const { return _last_Java_sp != NULL; }
97 // This is very dangerous unless sp == NULL
98 // Invalidate the anchor so that has_last_frame is false
99 // and no one should look at the other fields.
100 void zap(void) { _last_Java_sp = NULL; }
102 #ifdef TARGET_ARCH_x86
103 # include "javaFrameAnchor_x86.hpp"
104 #endif
105 #ifdef TARGET_ARCH_sparc
106 # include "javaFrameAnchor_sparc.hpp"
107 #endif
108 #ifdef TARGET_ARCH_zero
109 # include "javaFrameAnchor_zero.hpp"
110 #endif
111 #ifdef TARGET_ARCH_arm
112 # include "javaFrameAnchor_arm.hpp"
113 #endif
114 #ifdef TARGET_ARCH_ppc
115 # include "javaFrameAnchor_ppc.hpp"
116 #endif
119 public:
120 JavaFrameAnchor() { clear(); }
121 JavaFrameAnchor(JavaFrameAnchor *src) { copy(src); }
123 void set_last_Java_pc(address pc) { _last_Java_pc = pc; }
125 // Assembly stub generation helpers
127 static ByteSize last_Java_sp_offset() { return byte_offset_of(JavaFrameAnchor, _last_Java_sp); }
128 static ByteSize last_Java_pc_offset() { return byte_offset_of(JavaFrameAnchor, _last_Java_pc); }
130 };
132 #endif // SHARE_VM_RUNTIME_JAVAFRAMEANCHOR_HPP