1 /*
2 * Copyright (c) 1997, 2000, 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 */
24
25 // All the basic framework for stubcode generation/debugging/printing.
26
27
28 // A StubCodeDesc describes a piece of generated code (usually stubs).
29 // This information is mainly useful for debugging and printing.
30 // Currently, code descriptors are simply chained in a linked list,
31 // this may have to change if searching becomes too slow.
32
33 class StubCodeDesc: public CHeapObj {
34 protected:
35 static StubCodeDesc* _list; // the list of all descriptors
36 static int _count; // length of list
37
38 StubCodeDesc* _next; // the next element in the linked list
39 const char* _group; // the group to which the stub code belongs
40 const char* _name; // the name assigned to the stub code
41 int _index; // serial number assigned to the stub
42 address _begin; // points to the first byte of the stub code (included)
43 address _end; // points to the first byte after the stub code (excluded)
44
102 virtual void stub_prolog(StubCodeDesc* cdesc); // called by StubCodeMark constructor
103 virtual void stub_epilog(StubCodeDesc* cdesc); // called by StubCodeMark destructor
104 };
105
106
107 // Stack-allocated helper class used to assciate a stub code with a name.
108 // All stub code generating functions that use a StubCodeMark will be registered
109 // in the global StubCodeDesc list and the generated stub code can be identified
110 // later via an address pointing into it.
111
112 class StubCodeMark: public StackObj {
113 protected:
114 StubCodeGenerator* _cgen;
115 StubCodeDesc* _cdesc;
116
117 public:
118 StubCodeMark(StubCodeGenerator* cgen, const char* group, const char* name);
119 ~StubCodeMark();
120
121 };
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1 /*
2 * Copyright (c) 1997, 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 */
24
25 #ifndef SHARE_VM_RUNTIME_STUBCODEGENERATOR_HPP
26 #define SHARE_VM_RUNTIME_STUBCODEGENERATOR_HPP
27
28 #include "asm/assembler.hpp"
29 #include "memory/allocation.hpp"
30
31 // All the basic framework for stubcode generation/debugging/printing.
32
33
34 // A StubCodeDesc describes a piece of generated code (usually stubs).
35 // This information is mainly useful for debugging and printing.
36 // Currently, code descriptors are simply chained in a linked list,
37 // this may have to change if searching becomes too slow.
38
39 class StubCodeDesc: public CHeapObj {
40 protected:
41 static StubCodeDesc* _list; // the list of all descriptors
42 static int _count; // length of list
43
44 StubCodeDesc* _next; // the next element in the linked list
45 const char* _group; // the group to which the stub code belongs
46 const char* _name; // the name assigned to the stub code
47 int _index; // serial number assigned to the stub
48 address _begin; // points to the first byte of the stub code (included)
49 address _end; // points to the first byte after the stub code (excluded)
50
108 virtual void stub_prolog(StubCodeDesc* cdesc); // called by StubCodeMark constructor
109 virtual void stub_epilog(StubCodeDesc* cdesc); // called by StubCodeMark destructor
110 };
111
112
113 // Stack-allocated helper class used to assciate a stub code with a name.
114 // All stub code generating functions that use a StubCodeMark will be registered
115 // in the global StubCodeDesc list and the generated stub code can be identified
116 // later via an address pointing into it.
117
118 class StubCodeMark: public StackObj {
119 protected:
120 StubCodeGenerator* _cgen;
121 StubCodeDesc* _cdesc;
122
123 public:
124 StubCodeMark(StubCodeGenerator* cgen, const char* group, const char* name);
125 ~StubCodeMark();
126
127 };
128
129 #endif // SHARE_VM_RUNTIME_STUBCODEGENERATOR_HPP
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