Fri, 29 Apr 2016 00:06:10 +0800
Added MIPS 64-bit port.
1 /*
2 * Copyright (c) 2002, 2011, 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 /*
26 * This file has been modified by Loongson Technology in 2015. These
27 * modifications are Copyright (c) 2015 Loongson Technology, and are made
28 * available on the same license terms set forth above.
29 */
31 #ifndef SHARE_VM_RUNTIME_JAVAFRAMEANCHOR_HPP
32 #define SHARE_VM_RUNTIME_JAVAFRAMEANCHOR_HPP
34 #include "utilities/globalDefinitions.hpp"
35 #ifdef TARGET_OS_ARCH_linux_x86
36 # include "orderAccess_linux_x86.inline.hpp"
37 #endif
38 #ifdef TARGET_OS_ARCH_linux_sparc
39 # include "orderAccess_linux_sparc.inline.hpp"
40 #endif
41 #ifdef TARGET_OS_ARCH_linux_mips
42 # include "orderAccess_linux_mips.inline.hpp"
43 #endif
44 #ifdef TARGET_OS_ARCH_linux_zero
45 # include "orderAccess_linux_zero.inline.hpp"
46 #endif
47 #ifdef TARGET_OS_ARCH_solaris_x86
48 # include "orderAccess_solaris_x86.inline.hpp"
49 #endif
50 #ifdef TARGET_OS_ARCH_solaris_sparc
51 # include "orderAccess_solaris_sparc.inline.hpp"
52 #endif
53 #ifdef TARGET_OS_ARCH_windows_x86
54 # include "orderAccess_windows_x86.inline.hpp"
55 #endif
56 #ifdef TARGET_OS_ARCH_linux_arm
57 # include "orderAccess_linux_arm.inline.hpp"
58 #endif
59 #ifdef TARGET_OS_ARCH_linux_ppc
60 # include "orderAccess_linux_ppc.inline.hpp"
61 #endif
62 #ifdef TARGET_OS_ARCH_aix_ppc
63 # include "orderAccess_aix_ppc.inline.hpp"
64 #endif
65 #ifdef TARGET_OS_ARCH_bsd_x86
66 # include "orderAccess_bsd_x86.inline.hpp"
67 #endif
68 #ifdef TARGET_OS_ARCH_bsd_zero
69 # include "orderAccess_bsd_zero.inline.hpp"
70 #endif
72 //
73 // An object for encapsulating the machine/os dependent part of a JavaThread frame state
74 //
75 class JavaThread;
77 class JavaFrameAnchor VALUE_OBJ_CLASS_SPEC {
78 // Too many friends...
79 friend class CallNativeDirectNode;
80 friend class OptoRuntime;
81 friend class Runtime1;
82 friend class StubAssembler;
83 friend class CallRuntimeDirectNode;
84 friend class MacroAssembler;
85 friend class InterpreterGenerator;
86 friend class LIR_Assembler;
87 friend class GraphKit;
88 friend class StubGenerator;
89 friend class JavaThread;
90 friend class frame;
91 friend class VMStructs;
92 friend class BytecodeInterpreter;
93 friend class JavaCallWrapper;
95 private:
96 //
97 // Whenever _last_Java_sp != NULL other anchor fields MUST be valid!
98 // The stack may not be walkable [check with walkable() ] but the values must be valid.
99 // The profiler apparently depends on this.
100 //
101 intptr_t* volatile _last_Java_sp;
103 // Whenever we call from Java to native we can not be assured that the return
104 // address that composes the last_Java_frame will be in an accessible location
105 // so calls from Java to native store that pc (or one good enough to locate
106 // the oopmap) in the frame anchor. Since the frames that call from Java to
107 // native are never deoptimized we never need to patch the pc and so this
108 // is acceptable.
109 volatile address _last_Java_pc;
111 // tells whether the last Java frame is set
112 // It is important that when last_Java_sp != NULL that the rest of the frame
113 // anchor (including platform specific) all be valid.
115 bool has_last_Java_frame() const { return _last_Java_sp != NULL; }
116 // This is very dangerous unless sp == NULL
117 // Invalidate the anchor so that has_last_frame is false
118 // and no one should look at the other fields.
119 void zap(void) { _last_Java_sp = NULL; }
121 #ifdef TARGET_ARCH_x86
122 # include "javaFrameAnchor_x86.hpp"
123 #endif
124 #ifdef TARGET_ARCH_mips
125 # include "javaFrameAnchor_mips.hpp"
126 #endif
127 #ifdef TARGET_ARCH_sparc
128 # include "javaFrameAnchor_sparc.hpp"
129 #endif
130 #ifdef TARGET_ARCH_zero
131 # include "javaFrameAnchor_zero.hpp"
132 #endif
133 #ifdef TARGET_ARCH_arm
134 # include "javaFrameAnchor_arm.hpp"
135 #endif
136 #ifdef TARGET_ARCH_ppc
137 # include "javaFrameAnchor_ppc.hpp"
138 #endif
141 public:
142 JavaFrameAnchor() { clear(); }
143 JavaFrameAnchor(JavaFrameAnchor *src) { copy(src); }
145 void set_last_Java_pc(address pc) { _last_Java_pc = pc; }
147 // Assembly stub generation helpers
149 static ByteSize last_Java_sp_offset() { return byte_offset_of(JavaFrameAnchor, _last_Java_sp); }
150 static ByteSize last_Java_pc_offset() { return byte_offset_of(JavaFrameAnchor, _last_Java_pc); }
152 };
154 #endif // SHARE_VM_RUNTIME_JAVAFRAMEANCHOR_HPP