Revert "Upgrade V8 to 2.5.6"

This reverts commit 564a486.

Breaks cygwin

deps/v8/AUTHORS

@@ -9,7 +9,6 @@ ARM Ltd.
 Hewlett-Packard Development Company, LP
 
 Alexander Botero-Lowry <alexbl@FreeBSD.org>
-Alexandre Rames <alexandre.rames@arm.com>
 Alexandre Vassalotti <avassalotti@gmail.com>
 Andreas Anyuru <andreas.anyuru@gmail.com>
 Burcu Dogan <burcujdogan@gmail.com>

deps/v8/ChangeLog

@@ -1,26 +1,3 @@
-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

@@ -38,9 +38,23 @@
 #ifndef V8_H_
 #define V8_H_
 
-#include "v8stdint.h"
+#include <stdio.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
@@ -62,6 +76,8 @@
 
 #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.
@@ -111,6 +127,7 @@ class Arguments;
 class Object;
 class Heap;
 class Top;
+
 }
 
 
@@ -459,10 +476,10 @@ class V8EXPORT HandleScope {
       level = 0;
     }
   };
-
+  
   void Leave();
 
-
+  
   internal::Object** prev_next_;
   internal::Object** prev_limit_;
 
@@ -1038,7 +1055,7 @@ class String : public Primitive {
    */
   V8EXPORT bool IsExternalAscii() const;
 
-  class V8EXPORT ExternalStringResourceBase {  // NOLINT
+  class V8EXPORT ExternalStringResourceBase {
    public:
     virtual ~ExternalStringResourceBase() {}
 
@@ -2348,15 +2365,12 @@ 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_;
 };
 
@@ -2488,18 +2502,13 @@ 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;
@@ -3251,8 +3260,8 @@ class V8EXPORT Locker {
 /**
  * An interface for exporting data from V8, using "push" model.
  */
-class V8EXPORT OutputStream {  // NOLINT
- public:
+class V8EXPORT OutputStream {
+public:
   enum OutputEncoding {
     kAscii = 0  // 7-bit ASCII.
   };
@@ -3282,8 +3291,6 @@ class V8EXPORT OutputStream {  // NOLINT
 
 namespace internal {
 
-const int kPointerSize = sizeof(void*);  // NOLINT
-const int kIntSize = sizeof(int);  // NOLINT
 
 // Tag information for HeapObject.
 const int kHeapObjectTag = 1;
@@ -3319,19 +3326,19 @@ template <> struct SmiConstants<8> {
   }
 };
 
-const int kSmiShiftSize = SmiConstants<kPointerSize>::kSmiShiftSize;
-const int kSmiValueSize = SmiConstants<kPointerSize>::kSmiValueSize;
+const int kSmiShiftSize = SmiConstants<sizeof(void*)>::kSmiShiftSize;
+const int kSmiValueSize = SmiConstants<sizeof(void*)>::kSmiValueSize;
 
 template <size_t ptr_size> struct InternalConstants;
 
 // Internal constants for 32-bit systems.
 template <> struct InternalConstants<4> {
-  static const int kStringResourceOffset = 3 * kPointerSize;
+  static const int kStringResourceOffset = 3 * sizeof(void*);
 };
 
 // Internal constants for 64-bit systems.
 template <> struct InternalConstants<8> {
-  static const int kStringResourceOffset = 3 * kPointerSize;
+  static const int kStringResourceOffset = 3 * sizeof(void*);
 };
 
 /**
@@ -3345,12 +3352,12 @@ class Internals {
   // These values match non-compiler-dependent values defined within
   // the implementation of v8.
   static const int kHeapObjectMapOffset = 0;
-  static const int kMapInstanceTypeOffset = kPointerSize + kIntSize;
+  static const int kMapInstanceTypeOffset = sizeof(void*) + sizeof(int);
   static const int kStringResourceOffset =
-      InternalConstants<kPointerSize>::kStringResourceOffset;
+      InternalConstants<sizeof(void*)>::kStringResourceOffset;
 
-  static const int kProxyProxyOffset = kPointerSize;
-  static const int kJSObjectHeaderSize = 3 * kPointerSize;
+  static const int kProxyProxyOffset = sizeof(void*);
+  static const int kJSObjectHeaderSize = 3 * sizeof(void*);
   static const int kFullStringRepresentationMask = 0x07;
   static const int kExternalTwoByteRepresentationTag = 0x02;
 
@@ -3368,7 +3375,7 @@ class Internals {
   }
 
   static inline int SmiValue(internal::Object* value) {
-    return SmiConstants<kPointerSize>::SmiToInt(value);
+    return SmiConstants<sizeof(void*)>::SmiToInt(value);
   }
 
   static inline int GetInstanceType(internal::Object* obj) {
@@ -3397,9 +3404,10 @@ class Internals {
     uint8_t* addr = reinterpret_cast<uint8_t*>(ptr) + offset - kHeapObjectTag;
     return *reinterpret_cast<T*>(addr);
   }
+
 };
 
-}  // namespace internal
+}
 
 
 template <class T>
@@ -3559,7 +3567,7 @@ 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 + (internal::kPointerSize * index);
+    int offset = I::kJSObjectHeaderSize + (sizeof(void*) * index);
     O* value = I::ReadField<O*>(obj, offset);
     O** result = HandleScope::CreateHandle(value);
     return Local<Value>(reinterpret_cast<Value*>(result));
@@ -3595,7 +3603,7 @@ 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 + (internal::kPointerSize * index);
+    int offset = I::kJSObjectHeaderSize + (sizeof(void*) * index);
     O* value = I::ReadField<O*>(obj, offset);
     return I::GetExternalPointer(value);
   }

deps/v8/src/SConscript

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

deps/v8/src/api.cc

@@ -43,6 +43,7 @@
 #include "serialize.h"
 #include "snapshot.h"
 #include "top.h"
+#include "utils.h"
 #include "v8threads.h"
 #include "version.h"
 
@@ -393,18 +394,14 @@ 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();
-  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 (young_space_size != 0 || old_gen_size != 0) {
+    bool result = i::Heap::ConfigureHeap(young_space_size / 2, old_gen_size);
     if (!result) return false;
   }
   if (constraints->stack_limit() != NULL) {
@@ -3263,15 +3260,11 @@ bool v8::V8::Dispose() {
 }
 
 
-HeapStatistics::HeapStatistics(): total_heap_size_(0),
-                                  total_heap_size_executable_(0),
-                                  used_heap_size_(0) { }
+HeapStatistics::HeapStatistics(): total_heap_size_(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());
 }