Upgrade V8 to 2.5.6

Author: ry

deps/v8/AUTHORS

@@ -9,6 +9,7 @@ ARM Ltd.
 Hewlett-Packard Development Company, LP
 
 Alexander Botero-Lowry <[email protected]>
+Alexandre Rames <[email protected]>
 Alexandre Vassalotti <[email protected]>
 Andreas Anyuru <[email protected]>
 Burcu Dogan <[email protected]>

deps/v8/ChangeLog

@@ -1,3 +1,26 @@
+2010-11-10: Version 2.5.6
+
+        Added support for VFP rounding modes to the ARM simulator.
+
+        Fixed multiplication overflow bug (issue 927).
+
+        Added a limit for the amount of executable memory (issue 925).
+
+
+2010-11-08: Version 2.5.5
+
+        Added more aggressive GC of external objects in near out-of-memory
+        situations.
+
+        Fixed a bug that gave the incorrect result for String.split called
+        on the empty string (issue 924).
+
+
+2010-11-03: Version 2.5.4
+
+        Improved V8 VFPv3 runtime detection to address issue 914.
+
+
 2010-11-01: Version 2.5.3
 
         Fixed a bug that prevents constants from overwriting function values

deps/v8/include/v8-debug.h

@@ -142,7 +142,7 @@ class EXPORT Debug {
 
     virtual ~Message() {}
   };
-  
+
 
   /**
    * An event details object passed to the debug event listener.
@@ -300,7 +300,7 @@ class EXPORT Debug {
   * get access to information otherwise not available during normal JavaScript
   * execution e.g. details on stack frames. Receiver of the function call will
   * be the debugger context global object, however this is a subject to change.
-  * The following example show a JavaScript function which when passed to 
+  * The following example show a JavaScript function which when passed to
   * v8::Debug::Call will return the current line of JavaScript execution.
   *
   * \code

deps/v8/include/v8.h

@@ -38,23 +38,9 @@
 #ifndef V8_H_
 #define V8_H_
 
-#include <stdio.h>
+#include "v8stdint.h"
 
 #ifdef _WIN32
-// When compiling on MinGW stdint.h is available.
-#ifdef __MINGW32__
-#include <stdint.h>
-#else  // __MINGW32__
-typedef signed char int8_t;
-typedef unsigned char uint8_t;
-typedef short int16_t;  // NOLINT
-typedef unsigned short uint16_t;  // NOLINT
-typedef int int32_t;
-typedef unsigned int uint32_t;
-typedef __int64 int64_t;
-typedef unsigned __int64 uint64_t;
-// intptr_t and friends are defined in crtdefs.h through stdio.h.
-#endif  // __MINGW32__
 
 // Setup for Windows DLL export/import. When building the V8 DLL the
 // BUILDING_V8_SHARED needs to be defined. When building a program which uses
@@ -76,8 +62,6 @@ typedef unsigned __int64 uint64_t;
 
 #else  // _WIN32
 
-#include <stdint.h>
-
 // Setup for Linux shared library export. There is no need to distinguish
 // between building or using the V8 shared library, but we should not
 // export symbols when we are building a static library.
@@ -127,7 +111,6 @@ class Arguments;
 class Object;
 class Heap;
 class Top;
-
 }
 
 
@@ -476,10 +459,10 @@ class V8EXPORT HandleScope {
       level = 0;
     }
   };
-  
+
   void Leave();
 
-  
+
   internal::Object** prev_next_;
   internal::Object** prev_limit_;
 
@@ -1055,7 +1038,7 @@ class String : public Primitive {
    */
   V8EXPORT bool IsExternalAscii() const;
 
-  class V8EXPORT ExternalStringResourceBase {
+  class V8EXPORT ExternalStringResourceBase {  // NOLINT
    public:
     virtual ~ExternalStringResourceBase() {}
 
@@ -2365,12 +2348,15 @@ class V8EXPORT ResourceConstraints {
   void set_max_young_space_size(int value) { max_young_space_size_ = value; }
   int max_old_space_size() const { return max_old_space_size_; }
   void set_max_old_space_size(int value) { max_old_space_size_ = value; }
+  int max_executable_size() { return max_executable_size_; }
+  void set_max_executable_size(int value) { max_executable_size_ = value; }
   uint32_t* stack_limit() const { return stack_limit_; }
   // Sets an address beyond which the VM's stack may not grow.
   void set_stack_limit(uint32_t* value) { stack_limit_ = value; }
  private:
   int max_young_space_size_;
   int max_old_space_size_;
+  int max_executable_size_;
   uint32_t* stack_limit_;
 };
 
@@ -2502,13 +2488,18 @@ class V8EXPORT HeapStatistics {
  public:
   HeapStatistics();
   size_t total_heap_size() { return total_heap_size_; }
+  size_t total_heap_size_executable() { return total_heap_size_executable_; }
   size_t used_heap_size() { return used_heap_size_; }
 
  private:
   void set_total_heap_size(size_t size) { total_heap_size_ = size; }
+  void set_total_heap_size_executable(size_t size) {
+    total_heap_size_executable_ = size;
+  }
   void set_used_heap_size(size_t size) { used_heap_size_ = size; }
 
   size_t total_heap_size_;
+  size_t total_heap_size_executable_;
   size_t used_heap_size_;
 
   friend class V8;
@@ -3260,8 +3251,8 @@ class V8EXPORT Locker {
 /**
  * An interface for exporting data from V8, using "push" model.
  */
-class V8EXPORT OutputStream {
-public:
+class V8EXPORT OutputStream {  // NOLINT
+ public:
   enum OutputEncoding {
     kAscii = 0  // 7-bit ASCII.
   };
@@ -3291,6 +3282,8 @@ class V8EXPORT OutputStream {
 
 namespace internal {
 
+const int kPointerSize = sizeof(void*);  // NOLINT
+const int kIntSize = sizeof(int);  // NOLINT
 
 // Tag information for HeapObject.
 const int kHeapObjectTag = 1;
@@ -3326,19 +3319,19 @@ template <> struct SmiConstants<8> {
   }
 };
 
-const int kSmiShiftSize = SmiConstants<sizeof(void*)>::kSmiShiftSize;
-const int kSmiValueSize = SmiConstants<sizeof(void*)>::kSmiValueSize;
+const int kSmiShiftSize = SmiConstants<kPointerSize>::kSmiShiftSize;
+const int kSmiValueSize = SmiConstants<kPointerSize>::kSmiValueSize;
 
 template <size_t ptr_size> struct InternalConstants;
 
 // Internal constants for 32-bit systems.
 template <> struct InternalConstants<4> {
-  static const int kStringResourceOffset = 3 * sizeof(void*);
+  static const int kStringResourceOffset = 3 * kPointerSize;
 };
 
 // Internal constants for 64-bit systems.
 template <> struct InternalConstants<8> {
-  static const int kStringResourceOffset = 3 * sizeof(void*);
+  static const int kStringResourceOffset = 3 * kPointerSize;
 };
 
 /**
@@ -3352,12 +3345,12 @@ class Internals {
   // These values match non-compiler-dependent values defined within
   // the implementation of v8.
   static const int kHeapObjectMapOffset = 0;
-  static const int kMapInstanceTypeOffset = sizeof(void*) + sizeof(int);
+  static const int kMapInstanceTypeOffset = kPointerSize + kIntSize;
   static const int kStringResourceOffset =
-      InternalConstants<sizeof(void*)>::kStringResourceOffset;
+      InternalConstants<kPointerSize>::kStringResourceOffset;
 
-  static const int kProxyProxyOffset = sizeof(void*);
-  static const int kJSObjectHeaderSize = 3 * sizeof(void*);
+  static const int kProxyProxyOffset = kPointerSize;
+  static const int kJSObjectHeaderSize = 3 * kPointerSize;
   static const int kFullStringRepresentationMask = 0x07;
   static const int kExternalTwoByteRepresentationTag = 0x02;
 
@@ -3375,7 +3368,7 @@ class Internals {
   }
 
   static inline int SmiValue(internal::Object* value) {
-    return SmiConstants<sizeof(void*)>::SmiToInt(value);
+    return SmiConstants<kPointerSize>::SmiToInt(value);
   }
 
   static inline int GetInstanceType(internal::Object* obj) {
@@ -3404,10 +3397,9 @@ class Internals {
     uint8_t* addr = reinterpret_cast<uint8_t*>(ptr) + offset - kHeapObjectTag;
     return *reinterpret_cast<T*>(addr);
   }
-
 };
 
-}
+}  // namespace internal
 
 
 template <class T>
@@ -3567,7 +3559,7 @@ Local<Value> Object::UncheckedGetInternalField(int index) {
     // If the object is a plain JSObject, which is the common case,
     // we know where to find the internal fields and can return the
     // value directly.
-    int offset = I::kJSObjectHeaderSize + (sizeof(void*) * index);
+    int offset = I::kJSObjectHeaderSize + (internal::kPointerSize * index);
     O* value = I::ReadField<O*>(obj, offset);
     O** result = HandleScope::CreateHandle(value);
     return Local<Value>(reinterpret_cast<Value*>(result));
@@ -3603,7 +3595,7 @@ void* Object::GetPointerFromInternalField(int index) {
     // If the object is a plain JSObject, which is the common case,
     // we know where to find the internal fields and can return the
     // value directly.
-    int offset = I::kJSObjectHeaderSize + (sizeof(void*) * index);
+    int offset = I::kJSObjectHeaderSize + (internal::kPointerSize * index);
     O* value = I::ReadField<O*>(obj, offset);
     return I::GetExternalPointer(value);
   }

deps/v8/include/v8stdint.h

@@ -0,0 +1,53 @@
+// Copyright 2010 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.
+
+// Load definitions of standard types.
+
+#ifndef V8STDINT_H_
+#define V8STDINT_H_
+
+#include <stdio.h>
+
+#if defined(_WIN32) && !defined(__MINGW32__)
+
+typedef signed char int8_t;
+typedef unsigned char uint8_t;
+typedef short int16_t;  // NOLINT
+typedef unsigned short uint16_t;  // NOLINT
+typedef int int32_t;
+typedef unsigned int uint32_t;
+typedef __int64 int64_t;
+typedef unsigned __int64 uint64_t;
+// intptr_t and friends are defined in crtdefs.h through stdio.h.
+
+#else
+
+#include <stdint.h>
+
+#endif
+
+#endif  // V8STDINT_H_

deps/v8/src/SConscript

@@ -40,6 +40,7 @@ SOURCES = {
     api.cc
     assembler.cc
     ast.cc
+    bignum.cc
     bootstrapper.cc
     builtins.cc
     cached-powers.cc
@@ -95,6 +96,7 @@ SOURCES = {
     register-allocator.cc
     rewriter.cc
     runtime.cc
+    scanner-base.cc
     scanner.cc
     scopeinfo.cc
     scopes.cc

deps/v8/src/api.cc

@@ -43,7 +43,6 @@
 #include "serialize.h"
 #include "snapshot.h"
 #include "top.h"
-#include "utils.h"
 #include "v8threads.h"
 #include "version.h"
 
@@ -394,14 +393,18 @@ v8::Handle<Boolean> False() {
 ResourceConstraints::ResourceConstraints()
   : max_young_space_size_(0),
     max_old_space_size_(0),
+    max_executable_size_(0),
     stack_limit_(NULL) { }
 
 
 bool SetResourceConstraints(ResourceConstraints* constraints) {
   int young_space_size = constraints->max_young_space_size();
   int old_gen_size = constraints->max_old_space_size();
-  if (young_space_size != 0 || old_gen_size != 0) {
-    bool result = i::Heap::ConfigureHeap(young_space_size / 2, old_gen_size);
+  int max_executable_size = constraints->max_executable_size();
+  if (young_space_size != 0 || old_gen_size != 0 || max_executable_size != 0) {
+    bool result = i::Heap::ConfigureHeap(young_space_size / 2,
+                                         old_gen_size,
+                                         max_executable_size);
     if (!result) return false;
   }
   if (constraints->stack_limit() != NULL) {
@@ -3260,11 +3263,15 @@ bool v8::V8::Dispose() {
 }
 
 
-HeapStatistics::HeapStatistics(): total_heap_size_(0), used_heap_size_(0) { }
+HeapStatistics::HeapStatistics(): total_heap_size_(0),
+                                  total_heap_size_executable_(0),
+                                  used_heap_size_(0) { }
 
 
 void v8::V8::GetHeapStatistics(HeapStatistics* heap_statistics) {
   heap_statistics->set_total_heap_size(i::Heap::CommittedMemory());
+  heap_statistics->set_total_heap_size_executable(
+      i::Heap::CommittedMemoryExecutable());
   heap_statistics->set_used_heap_size(i::Heap::SizeOfObjects());
 }