Move V8 to external/v8
Change-Id: If68025d67453785a651c5dfb34fad298c16676a4
diff --git a/src/log-inl.h b/src/log-inl.h
new file mode 100644
index 0000000..1844d2b
--- /dev/null
+++ b/src/log-inl.h
@@ -0,0 +1,126 @@
+// 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.
+
+#ifndef V8_LOG_INL_H_
+#define V8_LOG_INL_H_
+
+#include "log.h"
+
+namespace v8 {
+namespace internal {
+
+//
+// VMState class implementation. A simple stack of VM states held by the
+// logger and partially threaded through the call stack. States are pushed by
+// VMState construction and popped by destruction.
+//
+#ifdef ENABLE_LOGGING_AND_PROFILING
+inline const char* StateToString(StateTag state) {
+ switch (state) {
+ case JS:
+ return "JS";
+ case GC:
+ return "GC";
+ case COMPILER:
+ return "COMPILER";
+ case OTHER:
+ return "OTHER";
+ default:
+ UNREACHABLE();
+ return NULL;
+ }
+}
+
+VMState::VMState(StateTag state) : disabled_(true) {
+ if (!Logger::is_logging()) {
+ return;
+ }
+
+ disabled_ = false;
+#if !defined(ENABLE_HEAP_PROTECTION)
+ // When not protecting the heap, there is no difference between
+ // EXTERNAL and OTHER. As an optimization in that case, we will not
+ // perform EXTERNAL->OTHER transitions through the API. We thus
+ // compress the two states into one.
+ if (state == EXTERNAL) state = OTHER;
+#endif
+ state_ = state;
+ previous_ = Logger::current_state_;
+ Logger::current_state_ = this;
+
+ if (FLAG_log_state_changes) {
+ LOG(UncheckedStringEvent("Entering", StateToString(state_)));
+ if (previous_ != NULL) {
+ LOG(UncheckedStringEvent("From", StateToString(previous_->state_)));
+ }
+ }
+
+#ifdef ENABLE_HEAP_PROTECTION
+ if (FLAG_protect_heap && previous_ != NULL) {
+ if (state_ == EXTERNAL) {
+ // We are leaving V8.
+ ASSERT(previous_->state_ != EXTERNAL);
+ Heap::Protect();
+ } else if (previous_->state_ == EXTERNAL) {
+ // We are entering V8.
+ Heap::Unprotect();
+ }
+ }
+#endif
+}
+
+
+VMState::~VMState() {
+ if (disabled_) return;
+ Logger::current_state_ = previous_;
+
+ if (FLAG_log_state_changes) {
+ LOG(UncheckedStringEvent("Leaving", StateToString(state_)));
+ if (previous_ != NULL) {
+ LOG(UncheckedStringEvent("To", StateToString(previous_->state_)));
+ }
+ }
+
+#ifdef ENABLE_HEAP_PROTECTION
+ if (FLAG_protect_heap && previous_ != NULL) {
+ if (state_ == EXTERNAL) {
+ // We are reentering V8.
+ ASSERT(previous_->state_ != EXTERNAL);
+ Heap::Unprotect();
+ } else if (previous_->state_ == EXTERNAL) {
+ // We are leaving V8.
+ Heap::Protect();
+ }
+ }
+#endif
+}
+#endif
+
+
+} } // namespace v8::internal
+
+#endif // V8_LOG_INL_H_