some random isolate threading

R=svenpanne@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23494046

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16636 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/bootstrapper.cc

@@ -98,7 +98,7 @@ Handle<String> Bootstrapper::NativesSourceLookup(int index) {
 
 
 void Bootstrapper::Initialize(bool create_heap_objects) {
-  extensions_cache_.Initialize(create_heap_objects);
+  extensions_cache_.Initialize(isolate_, create_heap_objects);
 }
 
 
@@ -147,7 +147,7 @@ void Bootstrapper::TearDown() {
     delete_these_arrays_on_tear_down_ = NULL;
   }
 
-  extensions_cache_.Initialize(false);  // Yes, symmetrical
+  extensions_cache_.Initialize(isolate_, false);  // Yes, symmetrical
 }
 
 

src/bootstrapper.h

@@ -44,9 +44,8 @@ class SourceCodeCache BASE_EMBEDDED {
  public:
   explicit SourceCodeCache(Script::Type type): type_(type), cache_(NULL) { }
 
-  void Initialize(bool create_heap_objects) {
-    cache_ = create_heap_objects ?
-        Isolate::Current()->heap()->empty_fixed_array() : NULL;
+  void Initialize(Isolate* isolate, bool create_heap_objects) {
+    cache_ = create_heap_objects ? isolate->heap()->empty_fixed_array() : NULL;
   }
 
   void Iterate(ObjectVisitor* v) {

src/checks.cc

@@ -31,33 +31,19 @@
 
 #include "platform.h"
 
-// TODO(isolates): is it necessary to lift this?
-static int fatal_error_handler_nesting_depth = 0;
-
 // Contains protection against recursive calls (faults while handling faults).
 extern "C" void V8_Fatal(const char* file, int line, const char* format, ...) {
   i::AllowHandleDereference allow_deref;
   i::AllowDeferredHandleDereference allow_deferred_deref;
   fflush(stdout);
   fflush(stderr);
-  fatal_error_handler_nesting_depth++;
-  // First time we try to print an error message
-  if (fatal_error_handler_nesting_depth < 2) {
-    i::OS::PrintError("\n\n#\n# Fatal error in %s, line %d\n# ", file, line);
-    va_list arguments;
-    va_start(arguments, format);
-    i::OS::VPrintError(format, arguments);
-    va_end(arguments);
-    i::OS::PrintError("\n#\n");
-    i::OS::DumpBacktrace();
-  }
-  // First two times we may try to print a stack dump.
-  if (fatal_error_handler_nesting_depth < 3) {
-    if (i::FLAG_stack_trace_on_abort) {
-      // Call this one twice on double fault
-      i::Isolate::Current()->PrintStack(stderr);
-    }
-  }
+  i::OS::PrintError("\n\n#\n# Fatal error in %s, line %d\n# ", file, line);
+  va_list arguments;
+  va_start(arguments, format);
+  i::OS::VPrintError(format, arguments);
+  va_end(arguments);
+  i::OS::PrintError("\n#\n");
+  i::OS::DumpBacktrace();
   i::OS::Abort();
 }
 

src/isolate.h

@@ -1426,12 +1426,15 @@ class SaveContext BASE_EMBEDDED {
 class AssertNoContextChange BASE_EMBEDDED {
 #ifdef DEBUG
  public:
-  AssertNoContextChange() : context_(Isolate::Current()->context()) { }
+  AssertNoContextChange()
+    : isolate_(Isolate::Current()),
+      context_(isolate_->context()) { }
   ~AssertNoContextChange() {
-    ASSERT(Isolate::Current()->context() == *context_);
+    ASSERT(isolate_->context() == *context_);
   }
 
  private:
+  Isolate* isolate_;
   Handle<Context> context_;
 #else
  public:
@@ -1445,15 +1448,17 @@ class AssertNoContextChangeWithHandleScope BASE_EMBEDDED {
 #ifdef DEBUG
  public:
   AssertNoContextChangeWithHandleScope() :
-      scope_(Isolate::Current()),
-      context_(Isolate::Current()->context(), Isolate::Current()) {
+      isolate_(Isolate::Current()),
+      scope_(isolate_),
+      context_(isolate_->context(), isolate_) {
   }
 
   ~AssertNoContextChangeWithHandleScope() {
-    ASSERT(Isolate::Current()->context() == *context_);
+    ASSERT(isolate_->context() == *context_);
   }
 
  private:
+  Isolate* isolate_;
   HandleScope scope_;
   Handle<Context> context_;
 #else

src/jsregexp.cc

@@ -1085,8 +1085,8 @@ class RecursionCheck {
 };
 
 
-static RegExpEngine::CompilationResult IrregexpRegExpTooBig() {
-  return RegExpEngine::CompilationResult("RegExp too big");
+static RegExpEngine::CompilationResult IrregexpRegExpTooBig(Isolate* isolate) {
+  return RegExpEngine::CompilationResult(isolate, "RegExp too big");
 }
 
 
@@ -1143,7 +1143,7 @@ RegExpEngine::CompilationResult RegExpCompiler::Assemble(
   while (!work_list.is_empty()) {
     work_list.RemoveLast()->Emit(this, &new_trace);
   }
-  if (reg_exp_too_big_) return IrregexpRegExpTooBig();
+  if (reg_exp_too_big_) return IrregexpRegExpTooBig(zone_->isolate());
 
   Handle<HeapObject> code = macro_assembler_->GetCode(pattern);
   heap->IncreaseTotalRegexpCodeGenerated(code->Size());
@@ -5999,7 +5999,7 @@ RegExpEngine::CompilationResult RegExpEngine::Compile(
     bool is_ascii,
     Zone* zone) {
   if ((data->capture_count + 1) * 2 - 1 > RegExpMacroAssembler::kMaxRegister) {
-    return IrregexpRegExpTooBig();
+    return IrregexpRegExpTooBig(zone->isolate());
   }
   RegExpCompiler compiler(data->capture_count, ignore_case, is_ascii, zone);
 
@@ -6063,7 +6063,7 @@ RegExpEngine::CompilationResult RegExpEngine::Compile(
   analysis.EnsureAnalyzed(node);
   if (analysis.has_failed()) {
     const char* error_message = analysis.error_message();
-    return CompilationResult(error_message);
+    return CompilationResult(zone->isolate(), error_message);
   }
 
   // Create the correct assembler for the architecture.

src/jsregexp.h

@@ -1615,9 +1615,9 @@ struct RegExpCompileData {
 class RegExpEngine: public AllStatic {
  public:
   struct CompilationResult {
-    explicit CompilationResult(const char* error_message)
+    CompilationResult(Isolate* isolate, const char* error_message)
         : error_message(error_message),
-          code(Isolate::Current()->heap()->the_hole_value()),
+          code(isolate->heap()->the_hole_value()),
           num_registers(0) {}
     CompilationResult(Object* code, int registers)
       : error_message(NULL),

src/mark-compact.cc

@@ -1788,8 +1788,6 @@ void MarkCompactCollector::PrepareThreadForCodeFlushing(Isolate* isolate,
 
 
 void MarkCompactCollector::PrepareForCodeFlushing() {
-  ASSERT(heap() == Isolate::Current()->heap());
-
   // Enable code flushing for non-incremental cycles.
   if (FLAG_flush_code && !FLAG_flush_code_incrementally) {
     EnableCodeFlushing(!was_marked_incrementally_);

src/objects.cc

@@ -9892,7 +9892,7 @@ void SharedFunctionInfo::DisableOptimization(BailoutReason reason) {
   if (code()->kind() == Code::FUNCTION) {
     code()->set_optimizable(false);
   }
-  PROFILE(Isolate::Current(),
+  PROFILE(GetIsolate(),
       LogExistingFunction(Handle<SharedFunctionInfo>(this),
                           Handle<Code>(code())));
   if (FLAG_trace_opt) {