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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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65 trace_env.sample = sample; | 65 trace_env.sample = sample; |
66 } | 66 } |
67 | 67 |
68 | 68 |
69 static void DoTrace(Address fp) { | 69 static void DoTrace(Address fp) { |
70 RegisterState regs; | 70 RegisterState regs; |
71 regs.fp = fp; | 71 regs.fp = fp; |
72 // sp is only used to define stack high bound | 72 // sp is only used to define stack high bound |
73 regs.sp = | 73 regs.sp = |
74 reinterpret_cast<Address>(trace_env.sample) - 10240; | 74 reinterpret_cast<Address>(trace_env.sample) - 10240; |
75 trace_env.sample->Init(Isolate::Current(), regs); | 75 trace_env.sample->Init(CcTest::i_isolate(), regs); |
76 } | 76 } |
77 | 77 |
78 | 78 |
79 // Hide c_entry_fp to emulate situation when sampling is done while | 79 // Hide c_entry_fp to emulate situation when sampling is done while |
80 // pure JS code is being executed | 80 // pure JS code is being executed |
81 static void DoTraceHideCEntryFPAddress(Address fp) { | 81 static void DoTraceHideCEntryFPAddress(Address fp) { |
82 v8::internal::Address saved_c_frame_fp = | 82 v8::internal::Address saved_c_frame_fp = |
83 *(Isolate::Current()->c_entry_fp_address()); | 83 *(CcTest::i_isolate()->c_entry_fp_address()); |
84 CHECK(saved_c_frame_fp); | 84 CHECK(saved_c_frame_fp); |
85 *(Isolate::Current()->c_entry_fp_address()) = 0; | 85 *(CcTest::i_isolate()->c_entry_fp_address()) = 0; |
86 DoTrace(fp); | 86 DoTrace(fp); |
87 *(Isolate::Current()->c_entry_fp_address()) = saved_c_frame_fp; | 87 *(CcTest::i_isolate()->c_entry_fp_address()) = saved_c_frame_fp; |
88 } | 88 } |
89 | 89 |
90 | 90 |
91 // --- T r a c e E x t e n s i o n --- | 91 // --- T r a c e E x t e n s i o n --- |
92 | 92 |
93 class TraceExtension : public v8::Extension { | 93 class TraceExtension : public v8::Extension { |
94 public: | 94 public: |
95 TraceExtension() : v8::Extension("v8/trace", kSource) { } | 95 TraceExtension() : v8::Extension("v8/trace", kSource) { } |
96 virtual v8::Handle<v8::FunctionTemplate> GetNativeFunction( | 96 virtual v8::Handle<v8::FunctionTemplate> GetNativeFunction( |
97 v8::Handle<String> name); | 97 v8::Handle<String> name); |
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149 DoTrace(GetFP(args)); | 149 DoTrace(GetFP(args)); |
150 } | 150 } |
151 | 151 |
152 | 152 |
153 void TraceExtension::JSTrace(const v8::FunctionCallbackInfo<v8::Value>& args) { | 153 void TraceExtension::JSTrace(const v8::FunctionCallbackInfo<v8::Value>& args) { |
154 DoTraceHideCEntryFPAddress(GetFP(args)); | 154 DoTraceHideCEntryFPAddress(GetFP(args)); |
155 } | 155 } |
156 | 156 |
157 | 157 |
158 static Address GetJsEntrySp() { | 158 static Address GetJsEntrySp() { |
159 CHECK_NE(NULL, i::Isolate::Current()->thread_local_top()); | 159 CHECK_NE(NULL, CcTest::i_isolate()->thread_local_top()); |
160 return i::Isolate::Current()->js_entry_sp(); | 160 return CcTest::i_isolate()->js_entry_sp(); |
161 } | 161 } |
162 | 162 |
163 | 163 |
164 void TraceExtension::JSEntrySP( | 164 void TraceExtension::JSEntrySP( |
165 const v8::FunctionCallbackInfo<v8::Value>& args) { | 165 const v8::FunctionCallbackInfo<v8::Value>& args) { |
166 CHECK_NE(0, GetJsEntrySp()); | 166 CHECK_NE(0, GetJsEntrySp()); |
167 } | 167 } |
168 | 168 |
169 | 169 |
170 void TraceExtension::JSEntrySPLevel2( | 170 void TraceExtension::JSEntrySPLevel2( |
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389 CcTest::InitializeVM(TRACE_EXTENSION); | 389 CcTest::InitializeVM(TRACE_EXTENSION); |
390 v8::HandleScope scope(CcTest::isolate()); | 390 v8::HandleScope scope(CcTest::isolate()); |
391 CHECK_EQ(0, GetJsEntrySp()); | 391 CHECK_EQ(0, GetJsEntrySp()); |
392 CompileRun("a = 1; b = a + 1;"); | 392 CompileRun("a = 1; b = a + 1;"); |
393 CHECK_EQ(0, GetJsEntrySp()); | 393 CHECK_EQ(0, GetJsEntrySp()); |
394 CompileRun("js_entry_sp();"); | 394 CompileRun("js_entry_sp();"); |
395 CHECK_EQ(0, GetJsEntrySp()); | 395 CHECK_EQ(0, GetJsEntrySp()); |
396 CompileRun("js_entry_sp_level2();"); | 396 CompileRun("js_entry_sp_level2();"); |
397 CHECK_EQ(0, GetJsEntrySp()); | 397 CHECK_EQ(0, GetJsEntrySp()); |
398 } | 398 } |
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