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author | Ryan <ry@tinyclouds.org> | 2009-04-22 19:35:47 +0200 |
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committer | Ryan <ry@tinyclouds.org> | 2009-04-22 19:35:47 +0200 |
commit | 40c0f755c998d2615fe8466aab20c6d81bd463e7 (patch) | |
tree | 51fcb08ba1bd3f745ceb43fd5f814a5700079881 /deps/v8/src/oprofile-agent.cc | |
parent | a93cf503073ba0258c55dec4dc325bdc1509b739 (diff) | |
download | node-new-40c0f755c998d2615fe8466aab20c6d81bd463e7.tar.gz |
import full versions of dependency libraries!
Diffstat (limited to 'deps/v8/src/oprofile-agent.cc')
-rw-r--r-- | deps/v8/src/oprofile-agent.cc | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/deps/v8/src/oprofile-agent.cc b/deps/v8/src/oprofile-agent.cc new file mode 100644 index 0000000000..e9f7d3e2fa --- /dev/null +++ b/deps/v8/src/oprofile-agent.cc @@ -0,0 +1,111 @@ +// 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 +} +} } |