| // Copyright 2006-2009 the V8 project authors. All rights reserved. |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following |
| // disclaimer in the documentation and/or other materials provided |
| // with the distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include "v8.h" |
| |
| #include "oprofile-agent.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| #ifdef ENABLE_OPROFILE_AGENT |
| op_agent_t OProfileAgent::handle_ = NULL; |
| #endif |
| |
| |
| bool OProfileAgent::Initialize() { |
| #ifdef ENABLE_OPROFILE_AGENT |
| if (FLAG_oprofile) { |
| if (handle_ != NULL) return false; |
| |
| // Disable code moving by GC. |
| FLAG_always_compact = false; |
| FLAG_never_compact = true; |
| |
| handle_ = op_open_agent(); |
| return (handle_ != NULL); |
| } else { |
| return true; |
| } |
| #else |
| return true; |
| #endif |
| } |
| |
| |
| void OProfileAgent::TearDown() { |
| #ifdef ENABLE_OPROFILE_AGENT |
| if (handle_ != NULL) { |
| op_close_agent(handle_); |
| } |
| #endif |
| } |
| |
| |
| void OProfileAgent::CreateNativeCodeRegion(const char* name, |
| const void* ptr, unsigned int size) { |
| #ifdef ENABLE_OPROFILE_AGENT |
| if (handle_ == NULL) return; |
| op_write_native_code(handle_, name, (uint64_t)ptr, ptr, size); |
| #endif |
| } |
| |
| |
| void OProfileAgent::CreateNativeCodeRegion(String* name, |
| const void* ptr, unsigned int size) { |
| #ifdef ENABLE_OPROFILE_AGENT |
| if (handle_ != NULL) { |
| const char* func_name; |
| SmartPointer<char> str = |
| name->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| func_name = name->length() > 0 ? *str : "<anonymous>"; |
| CreateNativeCodeRegion(func_name, ptr, size); |
| } |
| #endif |
| } |
| |
| |
| void OProfileAgent::CreateNativeCodeRegion(String* name, String* source, |
| int line_num, const void* ptr, unsigned int size) { |
| #ifdef ENABLE_OPROFILE_AGENT |
| if (handle_ != NULL) { |
| Vector<char> buf = Vector<char>::New(OProfileAgent::kFormattingBufSize); |
| const char* func_name; |
| SmartPointer<char> str = |
| name->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| func_name = name->length() > 0 ? *str : "<anonymous>"; |
| SmartPointer<char> source_str = |
| source->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| if (v8::internal::OS::SNPrintF(buf, "%s %s:%d", |
| func_name, *source_str, line_num) != -1) { |
| CreateNativeCodeRegion(buf.start(), ptr, size); |
| } else { |
| CreateNativeCodeRegion("<script/func name too long>", ptr, size); |
| } |
| } |
| #endif |
| } |
| } } |