1// Copyright 2010 the V8 project authors. All rights reserved.
2// Redistribution and use in source and binary forms, with or without
3// modification, are permitted provided that the following conditions are
4// met:
5//
6//     * Redistributions of source code must retain the above copyright
7//       notice, this list of conditions and the following disclaimer.
8//     * Redistributions in binary form must reproduce the above
9//       copyright notice, this list of conditions and the following
10//       disclaimer in the documentation and/or other materials provided
11//       with the distribution.
12//     * Neither the name of Google Inc. nor the names of its
13//       contributors may be used to endorse or promote products derived
14//       from this software without specific prior written permission.
15//
16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28#ifndef V8_GDB_JIT_H_
29#define V8_GDB_JIT_H_
30
31#include "allocation.h"
32
33//
34// Basic implementation of GDB JIT Interface client.
35// GBD JIT Interface is supported in GDB 7.0 and above.
36// Currently on x64 and ia32 architectures and Linux OS are supported.
37//
38
39#ifdef ENABLE_GDB_JIT_INTERFACE
40#include "v8.h"
41#include "factory.h"
42
43namespace v8 {
44namespace internal {
45
46class CompilationInfo;
47
48#define CODE_TAGS_LIST(V)                       \
49  V(LOAD_IC)                                    \
50  V(KEYED_LOAD_IC)                              \
51  V(STORE_IC)                                   \
52  V(KEYED_STORE_IC)                             \
53  V(CALL_IC)                                    \
54  V(CALL_INITIALIZE)                            \
55  V(CALL_PRE_MONOMORPHIC)                       \
56  V(CALL_NORMAL)                                \
57  V(CALL_MEGAMORPHIC)                           \
58  V(CALL_MISS)                                  \
59  V(STUB)                                       \
60  V(BUILTIN)                                    \
61  V(SCRIPT)                                     \
62  V(EVAL)                                       \
63  V(FUNCTION)
64
65class GDBJITLineInfo : public Malloced {
66 public:
67  GDBJITLineInfo()
68      : pc_info_(10) { }
69
70  void SetPosition(intptr_t pc, int pos, bool is_statement) {
71    AddPCInfo(PCInfo(pc, pos, is_statement));
72  }
73
74  struct PCInfo {
75    PCInfo(intptr_t pc, int pos, bool is_statement)
76        : pc_(pc), pos_(pos), is_statement_(is_statement) { }
77
78    intptr_t pc_;
79    int pos_;
80    bool is_statement_;
81  };
82
83  List<PCInfo>* pc_info() {
84    return &pc_info_;
85  }
86
87 private:
88  void AddPCInfo(const PCInfo& pc_info) {
89    pc_info_.Add(pc_info);
90  }
91
92  List<PCInfo> pc_info_;
93};
94
95
96class GDBJITInterface: public AllStatic {
97 public:
98  enum CodeTag {
99#define V(x) x,
100    CODE_TAGS_LIST(V)
101#undef V
102    TAG_COUNT
103  };
104
105  static const char* Tag2String(CodeTag tag) {
106    switch (tag) {
107#define V(x) case x: return #x;
108      CODE_TAGS_LIST(V)
109#undef V
110      default:
111        return NULL;
112    }
113  }
114
115  static void AddCode(const char* name,
116                      Code* code,
117                      CodeTag tag,
118                      Script* script,
119                      CompilationInfo* info);
120
121  static void AddCode(Handle<String> name,
122                      Handle<Script> script,
123                      Handle<Code> code,
124                      CompilationInfo* info);
125
126  static void AddCode(CodeTag tag, String* name, Code* code);
127
128  static void AddCode(CodeTag tag, const char* name, Code* code);
129
130  static void AddCode(CodeTag tag, Code* code);
131
132  static void RemoveCode(Code* code);
133
134  static void RegisterDetailedLineInfo(Code* code, GDBJITLineInfo* line_info);
135};
136
137#define GDBJIT(action) GDBJITInterface::action
138
139} }   // namespace v8::internal
140#else
141#define GDBJIT(action) ((void) 0)
142#endif
143
144#endif
145