1 | // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
2 | // for details. All rights reserved. Use of this source code is governed by a |
3 | // BSD-style license that can be found in the LICENSE file. |
4 | |
5 | #ifndef RUNTIME_VM_TAGS_H_ |
6 | #define RUNTIME_VM_TAGS_H_ |
7 | |
8 | #include "vm/allocation.h" |
9 | #include "vm/thread_stack_resource.h" |
10 | |
11 | namespace dart { |
12 | |
13 | class Isolate; |
14 | class JSONObject; |
15 | class RuntimeEntry; |
16 | |
17 | #define VM_TAG_LIST(V) \ |
18 | V(Idle) /* isolate is idle and is_runnable() */ \ |
19 | V(LoadWait) /* isolate is idle and !is_runnable() */ \ |
20 | V(VM) /* Catch all */ \ |
21 | V(LoadBytecode) \ |
22 | V(CompileOptimized) \ |
23 | V(CompileUnoptimized) \ |
24 | V(ClassLoading) \ |
25 | V(CompileParseRegExp) \ |
26 | V(DartCompiled) \ |
27 | V(DartInterpreted) \ |
28 | V(GCNewSpace) \ |
29 | V(GCOldSpace) \ |
30 | V(GCIdle) \ |
31 | V(Embedder) \ |
32 | V(Runtime) \ |
33 | V(Native) |
34 | |
35 | class VMTag : public AllStatic { |
36 | public: |
37 | enum VMTagId { |
38 | kInvalidTagId = 0, |
39 | #define DEFINE_VM_TAG_ID(tag) k##tag##TagId, |
40 | VM_TAG_LIST(DEFINE_VM_TAG_ID) |
41 | #undef DEFINE_VM_TAG_KIND |
42 | kNumVMTags, |
43 | // |
44 | // All tags below |kNumVMTags| are special meta-data tags and do not |
45 | // indicate the state of the VM during a sample. |
46 | // |
47 | kRootTagId, // Special tag used as root of all profiles. |
48 | kTruncatedTagId, // Special tag used to indicate a truncated call stack. |
49 | // Code transition tags (used by unit tests). |
50 | kNoneCodeTagId, |
51 | kOptimizedCodeTagId, |
52 | kUnoptimizedCodeTagId, |
53 | kNativeCodeTagId, |
54 | kInlineStartCodeTagId, |
55 | kInlineEndCodeTagId, |
56 | kLastTagId, |
57 | }; |
58 | |
59 | static bool IsVMTag(uword id) { |
60 | return (id != kInvalidTagId) && (id < kNumVMTags); |
61 | } |
62 | static const char* TagName(uword id); |
63 | static bool IsNativeEntryTag(uword id); |
64 | static bool IsDartTag(uword id); |
65 | static bool IsExitFrameTag(uword id); |
66 | static bool IsRuntimeEntryTag(uword id); |
67 | static const char* RuntimeEntryTagName(uword id); |
68 | |
69 | static void RegisterRuntimeEntry(RuntimeEntry* runtime_entry); |
70 | |
71 | private: |
72 | struct TagEntry { |
73 | const char* name; |
74 | uword id; |
75 | }; |
76 | static TagEntry entries_[]; |
77 | }; |
78 | |
79 | class VMTagScope : ThreadStackResource { |
80 | public: |
81 | VMTagScope(Thread* thread, uword tag, bool conditional_set = true); |
82 | ~VMTagScope(); |
83 | |
84 | private: |
85 | uword previous_tag_; |
86 | |
87 | DISALLOW_ALLOCATION(); |
88 | DISALLOW_IMPLICIT_CONSTRUCTORS(VMTagScope); |
89 | }; |
90 | |
91 | class VMTagCounters { |
92 | public: |
93 | VMTagCounters(); |
94 | |
95 | void Increment(uword tag); |
96 | |
97 | int64_t count(uword tag); |
98 | |
99 | #ifndef PRODUCT |
100 | void PrintToJSONObject(JSONObject* obj); |
101 | #endif // !PRODUCT |
102 | |
103 | private: |
104 | int64_t counters_[VMTag::kNumVMTags]; |
105 | }; |
106 | |
107 | class UserTags : public AllStatic { |
108 | public: |
109 | // UserTag id space: [kUserTagIdOffset, kUserTagIdOffset + kMaxUserTags). |
110 | static const intptr_t kMaxUserTags = 256; |
111 | static const uword kUserTagIdOffset = 0x4096; |
112 | static const uword kDefaultUserTag = kUserTagIdOffset; |
113 | static const char* TagName(uword tag_id); |
114 | static bool IsUserTag(uword tag_id) { |
115 | return (tag_id >= kUserTagIdOffset) && |
116 | (tag_id < kUserTagIdOffset + kMaxUserTags); |
117 | } |
118 | }; |
119 | |
120 | } // namespace dart |
121 | |
122 | #endif // RUNTIME_VM_TAGS_H_ |
123 | |