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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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| 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 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. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 // | 27 // |
| 28 // Tests of profiler-related functions from log.h | 28 // Tests of profiler-related functions from log.h |
| 29 | 29 |
| 30 #include <stdlib.h> | 30 #include <stdlib.h> |
| 31 | 31 |
| 32 #include "v8.h" | 32 #include "v8.h" |
| 33 | 33 |
| 34 #include "api.h" | 34 #include "api.h" |
| 35 #include "cctest.h" |
| 35 #include "codegen.h" | 36 #include "codegen.h" |
| 37 #include "disassembler.h" |
| 38 #include "isolate.h" |
| 36 #include "log.h" | 39 #include "log.h" |
| 37 #include "isolate.h" | 40 #include "sampler.h" |
| 38 #include "cctest.h" | |
| 39 #include "disassembler.h" | |
| 40 #include "vm-state-inl.h" | 41 #include "vm-state-inl.h" |
| 41 | 42 |
| 42 using v8::Function; | 43 using v8::Function; |
| 43 using v8::Local; | 44 using v8::Local; |
| 44 using v8::Object; | 45 using v8::Object; |
| 45 using v8::Script; | 46 using v8::Script; |
| 46 using v8::String; | 47 using v8::String; |
| 47 using v8::Value; | 48 using v8::Value; |
| 48 | 49 |
| 49 using v8::internal::byte; | 50 using v8::internal::byte; |
| 50 using v8::internal::Address; | 51 using v8::internal::Address; |
| 51 using v8::internal::Handle; | 52 using v8::internal::Handle; |
| 52 using v8::internal::Isolate; | 53 using v8::internal::Isolate; |
| 53 using v8::internal::JSFunction; | 54 using v8::internal::JSFunction; |
| 55 using v8::internal::RegisterState; |
| 54 using v8::internal::TickSample; | 56 using v8::internal::TickSample; |
| 55 | 57 |
| 56 | 58 |
| 57 static struct { | 59 static struct { |
| 58 TickSample* sample; | 60 TickSample* sample; |
| 59 } trace_env = { NULL }; | 61 } trace_env = { NULL }; |
| 60 | 62 |
| 61 | 63 |
| 62 static void InitTraceEnv(TickSample* sample) { | 64 static void InitTraceEnv(TickSample* sample) { |
| 63 trace_env.sample = sample; | 65 trace_env.sample = sample; |
| 64 } | 66 } |
| 65 | 67 |
| 66 | 68 |
| 67 static void DoTrace(Address fp) { | 69 static void DoTrace(Address fp) { |
| 68 trace_env.sample->fp = fp; | 70 RegisterState regs; |
| 71 regs.fp = fp; |
| 69 // sp is only used to define stack high bound | 72 // sp is only used to define stack high bound |
| 70 trace_env.sample->sp = | 73 regs.sp = |
| 71 reinterpret_cast<Address>(trace_env.sample) - 10240; | 74 reinterpret_cast<Address>(trace_env.sample) - 10240; |
| 72 trace_env.sample->Trace(Isolate::Current()); | 75 trace_env.sample->Init(Isolate::Current(), regs); |
| 73 } | 76 } |
| 74 | 77 |
| 75 | 78 |
| 76 // 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 |
| 77 // pure JS code is being executed | 80 // pure JS code is being executed |
| 78 static void DoTraceHideCEntryFPAddress(Address fp) { | 81 static void DoTraceHideCEntryFPAddress(Address fp) { |
| 79 v8::internal::Address saved_c_frame_fp = | 82 v8::internal::Address saved_c_frame_fp = |
| 80 *(Isolate::Current()->c_entry_fp_address()); | 83 *(Isolate::Current()->c_entry_fp_address()); |
| 81 CHECK(saved_c_frame_fp); | 84 CHECK(saved_c_frame_fp); |
| 82 *(Isolate::Current()->c_entry_fp_address()) = 0; | 85 *(Isolate::Current()->c_entry_fp_address()) = 0; |
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| 176 | 179 |
| 177 static TraceExtension kTraceExtension; | 180 static TraceExtension kTraceExtension; |
| 178 v8::DeclareExtension kTraceExtensionDeclaration(&kTraceExtension); | 181 v8::DeclareExtension kTraceExtensionDeclaration(&kTraceExtension); |
| 179 | 182 |
| 180 | 183 |
| 181 static bool IsAddressWithinFuncCode(JSFunction* function, Address addr) { | 184 static bool IsAddressWithinFuncCode(JSFunction* function, Address addr) { |
| 182 i::Code* code = function->code(); | 185 i::Code* code = function->code(); |
| 183 return code->contains(addr); | 186 return code->contains(addr); |
| 184 } | 187 } |
| 185 | 188 |
| 189 |
| 186 static bool IsAddressWithinFuncCode(const char* func_name, Address addr) { | 190 static bool IsAddressWithinFuncCode(const char* func_name, Address addr) { |
| 187 v8::Local<v8::Value> func = CcTest::env()->Global()->Get(v8_str(func_name)); | 191 v8::Local<v8::Value> func = CcTest::env()->Global()->Get(v8_str(func_name)); |
| 188 CHECK(func->IsFunction()); | 192 CHECK(func->IsFunction()); |
| 189 JSFunction* js_func = JSFunction::cast(*v8::Utils::OpenHandle(*func)); | 193 JSFunction* js_func = JSFunction::cast(*v8::Utils::OpenHandle(*func)); |
| 190 return IsAddressWithinFuncCode(js_func, addr); | 194 return IsAddressWithinFuncCode(js_func, addr); |
| 191 } | 195 } |
| 192 | 196 |
| 193 | 197 |
| 194 // This C++ function is called as a constructor, to grab the frame pointer | 198 // This C++ function is called as a constructor, to grab the frame pointer |
| 195 // from the calling function. When this function runs, the stack contains | 199 // from the calling function. When this function runs, the stack contains |
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| 385 CcTest::InitializeVM(TRACE_EXTENSION); | 389 CcTest::InitializeVM(TRACE_EXTENSION); |
| 386 v8::HandleScope scope(CcTest::isolate()); | 390 v8::HandleScope scope(CcTest::isolate()); |
| 387 CHECK_EQ(0, GetJsEntrySp()); | 391 CHECK_EQ(0, GetJsEntrySp()); |
| 388 CompileRun("a = 1; b = a + 1;"); | 392 CompileRun("a = 1; b = a + 1;"); |
| 389 CHECK_EQ(0, GetJsEntrySp()); | 393 CHECK_EQ(0, GetJsEntrySp()); |
| 390 CompileRun("js_entry_sp();"); | 394 CompileRun("js_entry_sp();"); |
| 391 CHECK_EQ(0, GetJsEntrySp()); | 395 CHECK_EQ(0, GetJsEntrySp()); |
| 392 CompileRun("js_entry_sp_level2();"); | 396 CompileRun("js_entry_sp_level2();"); |
| 393 CHECK_EQ(0, GetJsEntrySp()); | 397 CHECK_EQ(0, GetJsEntrySp()); |
| 394 } | 398 } |
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