2 * Copyright (C) 2008 The Android Open Source Project
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 * Android's method call profiling goodies.
20 #ifndef DALVIK_PROFILE_H_
21 #define DALVIK_PROFILE_H_
23 #ifndef NOT_VM /* for utilities that sneakily include this file */
27 struct Thread; // extern
31 bool dvmProfilingStartup(void);
32 void dvmProfilingShutdown(void);
35 * Method trace state. This is currently global. In theory we could make
36 * most of this per-thread.
38 struct MethodTraceState {
40 pthread_mutex_t startStopLock;
41 pthread_cond_t threadExitCond;
49 volatile int curOffset;
58 * Memory allocation profiler state. This is used both globally and
61 * If you add a field here, zero it out in dvmStartAllocCounting().
63 struct AllocProfState {
64 bool enabled; // is allocation tracking enabled?
66 int allocCount; // #of objects allocated
67 int allocSize; // cumulative size of objects
69 int failedAllocCount; // #of times an allocation failed
70 int failedAllocSize; // cumulative size of failed allocations
72 int freeCount; // #of objects freed
73 int freeSize; // cumulative size of freed objects
75 int gcCount; // #of times an allocation triggered a GC
77 int classInitCount; // #of initialized classes
78 u8 classInitTime; // cumulative time spent in class init (nsec)
83 * Start/stop method tracing.
85 void dvmMethodTraceStart(const char* traceFileName, int traceFd, int bufferSize,
86 int flags, bool directToDdms);
87 bool dvmIsMethodTraceActive(void);
88 void dvmMethodTraceStop(void);
91 * Start/stop emulator tracing.
93 void dvmEmulatorTraceStart(void);
94 void dvmEmulatorTraceStop(void);
97 * Start/stop Dalvik instruction counting.
99 void dvmStartInstructionCounting();
100 void dvmStopInstructionCounting();
103 * Bit flags for dvmMethodTraceStart "flags" argument. These must match
104 * the values in android.os.Debug.
107 TRACE_ALLOC_COUNTS = 0x01,
111 * Call these when a method enters or exits.
113 #define TRACE_METHOD_ENTER(_self, _method) \
115 if (_self->interpBreak.ctl.subMode & kSubModeMethodTrace) \
116 dvmMethodTraceAdd(_self, _method, METHOD_TRACE_ENTER); \
117 if (_self->interpBreak.ctl.subMode & kSubModeEmulatorTrace) \
118 dvmEmitEmulatorTrace(_method, METHOD_TRACE_ENTER); \
120 #define TRACE_METHOD_EXIT(_self, _method) \
122 if (_self->interpBreak.ctl.subMode & kSubModeMethodTrace) \
123 dvmMethodTraceAdd(_self, _method, METHOD_TRACE_EXIT); \
124 if (_self->interpBreak.ctl.subMode & kSubModeEmulatorTrace) \
125 dvmEmitEmulatorTrace(_method, METHOD_TRACE_EXIT); \
127 #define TRACE_METHOD_UNROLL(_self, _method) \
129 if (_self->interpBreak.ctl.subMode & kSubModeMethodTrace) \
130 dvmMethodTraceAdd(_self, _method, METHOD_TRACE_UNROLL); \
131 if (_self->interpBreak.ctl.subMode & kSubModeEmulatorTrace) \
132 dvmEmitEmulatorTrace(_method, METHOD_TRACE_UNROLL); \
135 void dvmMethodTraceAdd(struct Thread* self, const Method* method, int action);
136 void dvmEmitEmulatorTrace(const Method* method, int action);
138 void dvmMethodTraceGCBegin(void);
139 void dvmMethodTraceGCEnd(void);
140 void dvmMethodTraceClassPrepBegin(void);
141 void dvmMethodTraceClassPrepEnd(void);
143 extern "C" void dvmFastMethodTraceEnter(const Method* method, struct Thread* self);
144 extern "C" void dvmFastMethodTraceExit(struct Thread* self);
145 extern "C" void dvmFastNativeMethodTraceExit(const Method* method, struct Thread* self);
148 * Start/stop alloc counting.
150 void dvmStartAllocCounting(void);
151 void dvmStopAllocCounting(void);
157 * Enumeration for the two "action" bits.
160 METHOD_TRACE_ENTER = 0x00, // method entry
161 METHOD_TRACE_EXIT = 0x01, // method exit
162 METHOD_TRACE_UNROLL = 0x02, // method exited by exception unrolling
163 // 0x03 currently unused
166 #define TOKEN_CHAR '*'
169 * Common definitions, shared with the dump tool.
171 #define METHOD_ACTION_MASK 0x03 /* two bits */
172 #define METHOD_ID(_method) ((_method) & (~METHOD_ACTION_MASK))
173 #define METHOD_ACTION(_method) (((unsigned int)(_method)) & METHOD_ACTION_MASK)
174 #define METHOD_COMBINE(_method, _action) ((_method) | (_action))
176 #endif // DALVIK_PROFILE_H_