Upgrade V8 to 2.1.1

Author: ry

deps/v8/AUTHORS

@@ -4,6 +4,7 @@
 #   Name/Organization <email address>
 
 Google Inc.
+Sigma Designs Inc.
 
 Alexander Botero-Lowry <[email protected]>
 Alexandre Vassalotti <[email protected]>
@@ -22,3 +23,4 @@ Rene Rebe <[email protected]>
 Ryan Dahl <[email protected]>
 Patrick Gansterer <[email protected]>
 Subrato K De <[email protected]>
+Dineel D Sule <[email protected]>

deps/v8/ChangeLog

@@ -1,3 +1,17 @@
+2010-02-19: Version 2.1.1
+
+        [ES5] Implemented Object.defineProperty.
+
+        Improved profiler support.
+
+        Added SetPrototype method in the public V8 API.
+
+        Added GetScriptOrigin and GetScriptLineNumber methods to Function
+        objects in the API.
+
+        Performance improvements on all platforms.
+
+
 2010-02-03: Version 2.1.0
 
         Values are now always wrapped in objects when used as a receiver.

deps/v8/SConstruct

@@ -191,6 +191,17 @@ LIBRARY_FLAGS = {
     'armvariant:arm': {
       'CPPDEFINES':   ['V8_ARM_VARIANT_ARM']
     },
+    'arch:mips': {
+      'CPPDEFINES':   ['V8_TARGET_ARCH_MIPS'],
+      'simulator:none': {
+        'CCFLAGS':      ['-EL', '-mips32r2', '-Wa,-mips32r2', '-fno-inline'],
+        'LDFLAGS':      ['-EL']
+      }
+    },
+    'simulator:mips': {
+      'CCFLAGS':      ['-m32'],
+      'LINKFLAGS':    ['-m32']
+    },
     'arch:x64': {
       'CPPDEFINES':   ['V8_TARGET_ARCH_X64'],
       'CCFLAGS':      ['-m64'],
@@ -292,6 +303,9 @@ V8_EXTRA_FLAGS = {
       # used by the arm simulator.
       'WARNINGFLAGS': ['/wd4996']
     },
+    'arch:mips': {
+      'CPPDEFINES':   ['V8_TARGET_ARCH_MIPS'],
+    },
     'disassembler:on': {
       'CPPDEFINES':   ['ENABLE_DISASSEMBLER']
     }
@@ -457,10 +471,22 @@ SAMPLE_FLAGS = {
       'CCFLAGS':      ['-m64'],
       'LINKFLAGS':    ['-m64']
     },
+    'arch:mips': {
+      'CPPDEFINES':   ['V8_TARGET_ARCH_MIPS'],
+      'simulator:none': {
+        'CCFLAGS':      ['-EL', '-mips32r2', '-Wa,-mips32r2', '-fno-inline'],
+        'LINKFLAGS':    ['-EL'],
+        'LDFLAGS':      ['-EL']
+      }
+    },
     'simulator:arm': {
       'CCFLAGS':      ['-m32'],
       'LINKFLAGS':    ['-m32']
     },
+    'simulator:mips': {
+      'CCFLAGS':      ['-m32'],
+      'LINKFLAGS':    ['-m32']
+    },
     'mode:release': {
       'CCFLAGS':      ['-O2']
     },
@@ -601,7 +627,7 @@ SIMPLE_OPTIONS = {
     'help': 'the os to build for (' + OS_GUESS + ')'
   },
   'arch': {
-    'values':['arm', 'ia32', 'x64'],
+    'values':['arm', 'ia32', 'x64', 'mips'],
     'default': ARCH_GUESS,
     'help': 'the architecture to build for (' + ARCH_GUESS + ')'
   },
@@ -651,7 +677,7 @@ SIMPLE_OPTIONS = {
     'help': 'use Microsoft Visual C++ link-time code generation'
   },
   'simulator': {
-    'values': ['arm', 'none'],
+    'values': ['arm', 'mips', 'none'],
     'default': 'none',
     'help': 'build with simulator'
   },
@@ -871,6 +897,11 @@ def PostprocessOptions(options):
     options['armvariant'] = 'arm'
   if (options['armvariant'] != 'none' and options['arch'] != 'arm'):
     options['armvariant'] = 'none'
+  if options['arch'] == 'mips':
+    if ('regexp' in ARGUMENTS) and options['regexp'] == 'native':
+      # Print a warning if native regexp is specified for mips
+      print "Warning: forcing regexp to interpreted for mips"
+    options['regexp'] = 'interpreted'
 
 
 def ParseEnvOverrides(arg, imports):

deps/v8/include/v8.h

@@ -534,51 +534,76 @@ class V8EXPORT ScriptOrigin {
 class V8EXPORT Script {
  public:
 
-   /**
-    * Compiles the specified script. The ScriptOrigin* and ScriptData*
-    * parameters are owned by the caller of Script::Compile. No
-    * references to these objects are kept after compilation finishes.
-    *
-    * The script object returned is context independent; when run it
-    * will use the currently entered context.
-    */
-   static Local<Script> New(Handle<String> source,
-                            ScriptOrigin* origin = NULL,
-                            ScriptData* pre_data = NULL);
+  /**
+   * Compiles the specified script (context-independent).
+   *
+   * \param source Script source code.
+   * \param origin Script origin, owned by caller, no references are kept 
+   *   when New() returns
+   * \param pre_data Pre-parsing data, as obtained by ScriptData::PreCompile()
+   *   using pre_data speeds compilation if it's done multiple times.
+   *   Owned by caller, no references are kept when New() returns.
+   * \param script_data Arbitrary data associated with script. Using
+   *   this has same effect as calling SetData(), but allows data to be 
+   *   available to compile event handlers.
+   * \return Compiled script object (context independent; when run it
+   *   will use the currently entered context).
+   */
+  static Local<Script> New(Handle<String> source,
+                           ScriptOrigin* origin = NULL,
+                           ScriptData* pre_data = NULL,
+                           Handle<String> script_data = Handle<String>());
 
-   /**
-    * Compiles the specified script using the specified file name
-    * object (typically a string) as the script's origin.
-    *
-    * The script object returned is context independent; when run it
-    * will use the currently entered context.
-    */
-   static Local<Script> New(Handle<String> source,
-                            Handle<Value> file_name);
-
-  /**
-   * Compiles the specified script. The ScriptOrigin* and ScriptData*
-   * parameters are owned by the caller of Script::Compile. No
-   * references to these objects are kept after compilation finishes.
+  /**
+   * Compiles the specified script using the specified file name
+   * object (typically a string) as the script's origin.
+   *
+   * \param source Script source code.
+   * \patam file_name file name object (typically a string) to be used 
+   *   as the script's origin.
+   * \return Compiled script object (context independent; when run it
+   *   will use the currently entered context).
+   */
+  static Local<Script> New(Handle<String> source,
+                           Handle<Value> file_name);
+
+  /**
+   * Compiles the specified script (bound to current context).
    *
-   * The script object returned is bound to the context that was active
-   * when this function was called.  When run it will always use this
-   * context.
+   * \param source Script source code.
+   * \param origin Script origin, owned by caller, no references are kept 
+   *   when Compile() returns
+   * \param pre_data Pre-parsing data, as obtained by ScriptData::PreCompile()
+   *   using pre_data speeds compilation if it's done multiple times.
+   *   Owned by caller, no references are kept when Compile() returns.
+   * \param script_data Arbitrary data associated with script. Using
+   *   this has same effect as calling SetData(), but makes data available
+   *   earlier (i.e. to compile event handlers).
+   * \return Compiled script object, bound to the context that was active
+   *   when this function was called.  When run it will always use this
+   *   context.
    */
   static Local<Script> Compile(Handle<String> source,
                                ScriptOrigin* origin = NULL,
-                               ScriptData* pre_data = NULL);
+                               ScriptData* pre_data = NULL,
+                               Handle<String> script_data = Handle<String>());
 
   /**
    * Compiles the specified script using the specified file name
    * object (typically a string) as the script's origin.
    *
-   * The script object returned is bound to the context that was active
-   * when this function was called.  When run it will always use this
-   * context.
+   * \param source Script source code.
+   * \param file_name File name to use as script's origin
+   * \param script_data Arbitrary data associated with script. Using
+   *   this has same effect as calling SetData(), but makes data available
+   *   earlier (i.e. to compile event handlers).
+   * \return Compiled script object, bound to the context that was active
+   *   when this function was called.  When run it will always use this
+   *   context.
    */
   static Local<Script> Compile(Handle<String> source,
-                               Handle<Value> file_name);
+                               Handle<Value> file_name,
+                               Handle<String> script_data = Handle<String>());
 
   /**
    * Runs the script returning the resulting value.  If the script is
@@ -1196,6 +1221,13 @@ class V8EXPORT Object : public Value {
    */
   Local<Value> GetPrototype();
 
+  /**
+   * Set the prototype object.  This does not skip objects marked to
+   * be skipped by __proto__ and it does not consult the security
+   * handler.
+   */
+  bool SetPrototype(Handle<Value> prototype);
+
   /**
    * Finds an instance of the given function template in the prototype
    * chain.
@@ -1354,7 +1386,15 @@ class V8EXPORT Function : public Object {
   Local<Value> Call(Handle<Object> recv, int argc, Handle<Value> argv[]);
   void SetName(Handle<String> name);
   Handle<Value> GetName() const;
+
+  /**
+   * Returns zero based line number of function body and
+   * kLineOffsetNotFound if no information available.
+   */
+  int GetScriptLineNumber() const;
+  ScriptOrigin GetScriptOrigin() const;
   static inline Function* Cast(Value* obj);
+  static const int kLineOffsetNotFound;
  private:
   Function();
   static void CheckCast(Value* obj);
@@ -2309,22 +2349,30 @@ class V8EXPORT V8 {
   static bool IsProfilerPaused();
 
   /**
-   * Resumes specified profiler modules.
+   * Resumes specified profiler modules. Can be called several times to
+   * mark the opening of a profiler events block with the given tag.
+   *
    * "ResumeProfiler" is equivalent to "ResumeProfilerEx(PROFILER_MODULE_CPU)".
    * See ProfilerModules enum.
    *
    * \param flags Flags specifying profiler modules.
+   * \param tag Profile tag.
    */
-  static void ResumeProfilerEx(int flags);
+  static void ResumeProfilerEx(int flags, int tag = 0);
 
   /**
-   * Pauses specified profiler modules.
+   * Pauses specified profiler modules. Each call to "PauseProfilerEx" closes
+   * a block of profiler events opened by a call to "ResumeProfilerEx" with the
+   * same tag value. There is no need for blocks to be properly nested.
+   * The profiler is paused when the last opened block is closed.
+   *
    * "PauseProfiler" is equivalent to "PauseProfilerEx(PROFILER_MODULE_CPU)".
    * See ProfilerModules enum.
    *
    * \param flags Flags specifying profiler modules.
+   * \param tag Profile tag.
    */
-  static void PauseProfilerEx(int flags);
+  static void PauseProfilerEx(int flags, int tag = 0);
 
   /**
    * Returns active (resumed) profiler modules.

deps/v8/samples/lineprocessor.cc

@@ -152,7 +152,7 @@ int RunMain(int argc, char* argv[]) {
     } else if (strcmp(str, "--main-cycle-in-js") == 0) {
       cycle_type = CycleInJs;
     } else if (strcmp(str, "-p") == 0 && i + 1 < argc) {
-      port_number = atoi(argv[i + 1]);
+      port_number = atoi(argv[i + 1]);  // NOLINT
       i++;
     } else if (strncmp(str, "--", 2) == 0) {
       printf("Warning: unknown flag %s.\nTry --help for options\n", str);

deps/v8/src/SConscript

@@ -72,6 +72,7 @@ SOURCES = {
     interpreter-irregexp.cc
     jsregexp.cc
     jump-target.cc
+    liveedit.cc
     log-utils.cc
     log.cc
     mark-compact.cc
@@ -131,6 +132,24 @@ SOURCES = {
   'armvariant:thumb2': Split("""
     arm/assembler-thumb2.cc
     """),
+  'arch:mips': Split("""
+    mips/assembler-mips.cc
+    mips/builtins-mips.cc
+    mips/codegen-mips.cc
+    mips/constants-mips.cc
+    mips/cpu-mips.cc
+    mips/debug-mips.cc
+    mips/disasm-mips.cc
+    mips/fast-codegen-mips.cc
+    mips/full-codegen-mips.cc
+    mips/frames-mips.cc
+    mips/ic-mips.cc
+    mips/jump-target-mips.cc
+    mips/macro-assembler-mips.cc
+    mips/register-allocator-mips.cc
+    mips/stub-cache-mips.cc
+    mips/virtual-frame-mips.cc
+    """),
   'arch:ia32': Split("""
     ia32/assembler-ia32.cc
     ia32/builtins-ia32.cc
@@ -168,6 +187,7 @@ SOURCES = {
     x64/virtual-frame-x64.cc
     """),
   'simulator:arm': ['arm/simulator-arm.cc'],
+  'simulator:mips': ['mips/simulator-mips.cc'],
   'os:freebsd': ['platform-freebsd.cc', 'platform-posix.cc'],
   'os:openbsd': ['platform-openbsd.cc', 'platform-posix.cc'],
   'os:linux':   ['platform-linux.cc', 'platform-posix.cc'],

deps/v8/src/accessors.cc

@@ -647,42 +647,9 @@ Object* Accessors::ObjectGetPrototype(Object* receiver, void*) {
 Object* Accessors::ObjectSetPrototype(JSObject* receiver,
                                       Object* value,
                                       void*) {
-  // Before we can set the prototype we need to be sure
-  // prototype cycles are prevented.
-  // It is sufficient to validate that the receiver is not in the new prototype
-  // chain.
-
-  // Silently ignore the change if value is not a JSObject or null.
-  // SpiderMonkey behaves this way.
-  if (!value->IsJSObject() && !value->IsNull()) return value;
-
-  for (Object* pt = value; pt != Heap::null_value(); pt = pt->GetPrototype()) {
-    if (JSObject::cast(pt) == receiver) {
-      // Cycle detected.
-      HandleScope scope;
-      return Top::Throw(*Factory::NewError("cyclic_proto",
-                                           HandleVector<Object>(NULL, 0)));
-    }
-  }
-
-  // Find the first object in the chain whose prototype object is not
-  // hidden and set the new prototype on that object.
-  JSObject* current = receiver;
-  Object* current_proto = receiver->GetPrototype();
-  while (current_proto->IsJSObject() &&
-         JSObject::cast(current_proto)->map()->is_hidden_prototype()) {
-    current = JSObject::cast(current_proto);
-    current_proto = current_proto->GetPrototype();
-  }
-
-  // Set the new prototype of the object.
-  Object* new_map = current->map()->CopyDropTransitions();
-  if (new_map->IsFailure()) return new_map;
-  Map::cast(new_map)->set_prototype(value);
-  current->set_map(Map::cast(new_map));
-
+  const bool skip_hidden_prototypes = true;
   // To be consistent with other Set functions, return the value.
-  return value;
+  return receiver->SetPrototype(value, skip_hidden_prototypes);
 }