deps: patch V8 to be API/ABI compatible with 7.4 (from 7.7)

Co-authored-by: Anna Henningsen <[email protected]>
Backport-PR-URL: #30109
PR-URL: #29241
Reviewed-By: Ben Noordhuis <[email protected]>

Author: 2 people

common.gypi

@@ -38,7 +38,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.19',
+    'v8_embedder_string': '-node.20',
 
     ##### V8 defaults for Node.js #####
 

deps/v8/include/v8.h

@@ -1819,8 +1819,14 @@ class V8_EXPORT ScriptCompiler {
       Local<String> arguments[], size_t context_extension_count,
       Local<Object> context_extensions[],
       CompileOptions options = kNoCompileOptions,
-      NoCacheReason no_cache_reason = kNoCacheNoReason,
-      Local<ScriptOrModule>* script_or_module_out = nullptr);
+      NoCacheReason no_cache_reason = kNoCacheNoReason);
+
+  static V8_WARN_UNUSED_RESULT MaybeLocal<Function> CompileFunctionInContext(
+      Local<Context> context, Source* source, size_t arguments_count,
+      Local<String> arguments[], size_t context_extension_count,
+      Local<Object> context_extensions[], CompileOptions options,
+      NoCacheReason no_cache_reason,
+      Local<ScriptOrModule>* script_or_module_out);
 
   /**
    * Creates and returns code cache for the specified unbound_script.
@@ -3481,13 +3487,17 @@ enum class IntegrityLevel { kFrozen, kSealed };
  */
 class V8_EXPORT Object : public Value {
  public:
+  V8_DEPRECATED("Use maybe version",
+                bool Set(Local<Value> key, Local<Value> value));
   /**
    * Set only return Just(true) or Empty(), so if it should never fail, use
    * result.Check().
    */
   V8_WARN_UNUSED_RESULT Maybe<bool> Set(Local<Context> context,
                                         Local<Value> key, Local<Value> value);
 
+  V8_DEPRECATED("Use maybe version",
+                bool Set(uint32_t index, Local<Value> value));
   V8_WARN_UNUSED_RESULT Maybe<bool> Set(Local<Context> context, uint32_t index,
                                         Local<Value> value);
 
@@ -3532,9 +3542,11 @@ class V8_EXPORT Object : public Value {
       Local<Context> context, Local<Name> key,
       PropertyDescriptor& descriptor);  // NOLINT(runtime/references)
 
+  V8_DEPRECATED("Use maybe version", Local<Value> Get(Local<Value> key));
   V8_WARN_UNUSED_RESULT MaybeLocal<Value> Get(Local<Context> context,
                                               Local<Value> key);
 
+  V8_DEPRECATED("Use maybe version", Local<Value> Get(uint32_t index));
   V8_WARN_UNUSED_RESULT MaybeLocal<Value> Get(Local<Context> context,
                                               uint32_t index);
 
@@ -6683,26 +6695,7 @@ V8_INLINE Local<Boolean> False(Isolate* isolate);
  */
 class V8_EXPORT ResourceConstraints {
  public:
-  /**
-   * Configures the constraints with reasonable default values based on the
-   * provided heap size limit. The heap size includes both the young and
-   * the old generation.
-   *
-   * \param initial_heap_size_in_bytes The initial heap size or zero.
-   *    By default V8 starts with a small heap and dynamically grows it to
-   *    match the set of live objects. This may lead to ineffective
-   *    garbage collections at startup if the live set is large.
-   *    Setting the initial heap size avoids such garbage collections.
-   *    Note that this does not affect young generation garbage collections.
-   *
-   * \param maximum_heap_size_in_bytes The hard limit for the heap size.
-   *    When the heap size approaches this limit, V8 will perform series of
-   *    garbage collections and invoke the NearHeapLimitCallback. If the garbage
-   *    collections do not help and the callback does not increase the limit,
-   *    then V8 will crash with V8::FatalProcessOutOfMemory.
-   */
-  void ConfigureDefaultsFromHeapSize(size_t initial_heap_size_in_bytes,
-                                     size_t maximum_heap_size_in_bytes);
+  ResourceConstraints();
 
   /**
    * Configures the constraints with reasonable default values based on the
@@ -6726,8 +6719,12 @@ class V8_EXPORT ResourceConstraints {
    * The amount of virtual memory reserved for generated code. This is relevant
    * for 64-bit architectures that rely on code range for calls in code.
    */
-  size_t code_range_size_in_bytes() const { return code_range_size_; }
-  void set_code_range_size_in_bytes(size_t limit) { code_range_size_ = limit; }
+  size_t code_range_size_in_bytes() const {
+    return code_range_size_ * kMB;
+  }
+  void set_code_range_size_in_bytes(size_t limit) {
+    code_range_size_ = limit / kMB;
+  }
 
   /**
    * The maximum size of the old generation.
@@ -6737,60 +6734,60 @@ class V8_EXPORT ResourceConstraints {
    * increase the limit, then V8 will crash with V8::FatalProcessOutOfMemory.
    */
   size_t max_old_generation_size_in_bytes() const {
-    return max_old_generation_size_;
+    return max_old_space_size_ * kMB;
   }
   void set_max_old_generation_size_in_bytes(size_t limit) {
-    max_old_generation_size_ = limit;
+    max_old_space_size_ = limit / kMB;
   }
 
   /**
    * The maximum size of the young generation, which consists of two semi-spaces
    * and a large object space. This affects frequency of Scavenge garbage
    * collections and should be typically much smaller that the old generation.
    */
-  size_t max_young_generation_size_in_bytes() const {
-    return max_young_generation_size_;
-  }
-  void set_max_young_generation_size_in_bytes(size_t limit) {
-    max_young_generation_size_ = limit;
-  }
+  size_t max_young_generation_size_in_bytes() const;
+  void set_max_young_generation_size_in_bytes(size_t limit);
 
   size_t initial_old_generation_size_in_bytes() const {
-    return initial_old_generation_size_;
+    return 0;
   }
   void set_initial_old_generation_size_in_bytes(size_t initial_size) {
-    initial_old_generation_size_ = initial_size;
+    // Not available on Node 12.
   }
 
   size_t initial_young_generation_size_in_bytes() const {
-    return initial_young_generation_size_;
+    return 0;
   }
   void set_initial_young_generation_size_in_bytes(size_t initial_size) {
-    initial_young_generation_size_ = initial_size;
+    // Not available on Node 12.
   }
 
   /**
    * Deprecated functions. Do not use in new code.
    */
   V8_DEPRECATE_SOON("Use code_range_size_in_bytes.",
                     size_t code_range_size() const) {
-    return code_range_size_ / kMB;
+    return code_range_size_;
   }
   V8_DEPRECATE_SOON("Use set_code_range_size_in_bytes.",
                     void set_code_range_size(size_t limit_in_mb)) {
-    code_range_size_ = limit_in_mb * kMB;
+    code_range_size_ = limit_in_mb;
   }
   V8_DEPRECATE_SOON("Use max_young_generation_size_in_bytes.",
-                    size_t max_semi_space_size_in_kb() const);
+                    size_t max_semi_space_size_in_kb() const) {
+    return max_semi_space_size_in_kb_;
+  }
   V8_DEPRECATE_SOON("Use set_max_young_generation_size_in_bytes.",
-                    void set_max_semi_space_size_in_kb(size_t limit_in_kb));
+                    void set_max_semi_space_size_in_kb(size_t limit_in_kb)) {
+    max_semi_space_size_in_kb_ = limit_in_kb;
+  }
   V8_DEPRECATE_SOON("Use max_old_generation_size_in_bytes.",
                     size_t max_old_space_size() const) {
-    return max_old_generation_size_ / kMB;
+    return max_old_space_size_;
   }
   V8_DEPRECATE_SOON("Use set_max_old_generation_size_in_bytes.",
                     void set_max_old_space_size(size_t limit_in_mb)) {
-    max_old_generation_size_ = limit_in_mb * kMB;
+    max_old_space_size_ = limit_in_mb;
   }
   V8_DEPRECATE_SOON("Zone does not pool memory any more.",
                     size_t max_zone_pool_size() const) {
@@ -6803,13 +6800,15 @@ class V8_EXPORT ResourceConstraints {
 
  private:
   static constexpr size_t kMB = 1048576u;
+
+  // max_semi_space_size_ is in KB
+  size_t max_semi_space_size_in_kb_ = 0;
+
+  // The remaining limits are in MB
+  size_t max_old_space_size_ = 0;
+  uint32_t* stack_limit_ = nullptr;
   size_t code_range_size_ = 0;
-  size_t max_old_generation_size_ = 0;
-  size_t max_young_generation_size_ = 0;
   size_t max_zone_pool_size_ = 0;
-  size_t initial_old_generation_size_ = 0;
-  size_t initial_young_generation_size_ = 0;
-  uint32_t* stack_limit_ = nullptr;
 };
 
 

deps/v8/src/api/api.cc

@@ -238,10 +238,18 @@ namespace v8 {
 #define RETURN_ON_FAILED_EXECUTION_PRIMITIVE(T) \
   EXCEPTION_BAILOUT_CHECK_SCOPED_DO_NOT_USE(isolate, Nothing<T>())
 
+#define RETURN_TO_LOCAL_UNCHECKED(maybe_local, T) \
+  return maybe_local.FromMaybe(Local<T>());
+
 #define RETURN_ESCAPED(value) return handle_scope.Escape(value);
 
 namespace {
 
+Local<Context> ContextFromNeverReadOnlySpaceObject(
+    i::Handle<i::JSReceiver> obj) {
+  return reinterpret_cast<v8::Isolate*>(obj->GetIsolate())->GetCurrentContext();
+}
+
 class InternalEscapableScope : public v8::EscapableHandleScope {
  public:
   explicit inline InternalEscapableScope(i::Isolate* isolate)
@@ -964,31 +972,7 @@ Extension::Extension(const char* name, const char* source, int dep_count,
   CHECK(source != nullptr || source_length_ == 0);
 }
 
-void ResourceConstraints::ConfigureDefaultsFromHeapSize(
-    size_t initial_heap_size_in_bytes, size_t maximum_heap_size_in_bytes) {
-  CHECK_LE(initial_heap_size_in_bytes, maximum_heap_size_in_bytes);
-  if (maximum_heap_size_in_bytes == 0) {
-    return;
-  }
-  size_t young_generation, old_generation;
-  i::Heap::GenerationSizesFromHeapSize(maximum_heap_size_in_bytes,
-                                       &young_generation, &old_generation);
-  set_max_young_generation_size_in_bytes(
-      i::Max(young_generation, i::Heap::MinYoungGenerationSize()));
-  set_max_old_generation_size_in_bytes(
-      i::Max(old_generation, i::Heap::MinOldGenerationSize()));
-  if (initial_heap_size_in_bytes > 0) {
-    i::Heap::GenerationSizesFromHeapSize(initial_heap_size_in_bytes,
-                                         &young_generation, &old_generation);
-    // We do not set lower bounds for the initial sizes.
-    set_initial_young_generation_size_in_bytes(young_generation);
-    set_initial_old_generation_size_in_bytes(old_generation);
-  }
-  if (i::kRequiresCodeRange) {
-    set_code_range_size_in_bytes(
-        i::Min(i::kMaximalCodeRangeSize, maximum_heap_size_in_bytes));
-  }
-}
+ResourceConstraints::ResourceConstraints() {}
 
 void ResourceConstraints::ConfigureDefaults(uint64_t physical_memory,
                                             uint64_t virtual_memory_limit) {
@@ -1006,15 +990,14 @@ void ResourceConstraints::ConfigureDefaults(uint64_t physical_memory,
   }
 }
 
-size_t ResourceConstraints::max_semi_space_size_in_kb() const {
-  return i::Heap::SemiSpaceSizeFromYoungGenerationSize(
-             max_young_generation_size_) /
-         i::KB;
+size_t ResourceConstraints::max_young_generation_size_in_bytes() const {
+  return i::Heap::YoungGenerationSizeFromSemiSpaceSize(
+      max_semi_space_size_in_kb_ * i::KB);
 }
 
-void ResourceConstraints::set_max_semi_space_size_in_kb(size_t limit_in_kb) {
-  set_max_young_generation_size_in_bytes(
-      i::Heap::YoungGenerationSizeFromSemiSpaceSize(limit_in_kb * i::KB));
+void ResourceConstraints::set_max_young_generation_size_in_bytes(size_t limit) {
+  max_semi_space_size_in_kb_ =
+      i::Heap::SemiSpaceSizeFromYoungGenerationSize(limit) / i::KB;
 }
 
 i::Address* V8::GlobalizeReference(i::Isolate* isolate, i::Address* obj) {
@@ -2518,6 +2501,16 @@ bool IsIdentifier(i::Isolate* isolate, i::Handle<i::String> string) {
 }
 }  // anonymous namespace
 
+MaybeLocal<Function> ScriptCompiler::CompileFunctionInContext(
+    Local<Context> v8_context, Source* source, size_t arguments_count,
+    Local<String> arguments[], size_t context_extension_count,
+    Local<Object> context_extensions[], CompileOptions options,
+    NoCacheReason no_cache_reason) {
+  return ScriptCompiler::CompileFunctionInContext(
+      v8_context, source, arguments_count, arguments, context_extension_count,
+      context_extensions, options, no_cache_reason, nullptr);
+}
+
 MaybeLocal<Function> ScriptCompiler::CompileFunctionInContext(
     Local<Context> v8_context, Source* source, size_t arguments_count,
     Local<String> arguments[], size_t context_extension_count,
@@ -3988,6 +3981,11 @@ Maybe<bool> v8::Object::Set(v8::Local<v8::Context> context,
   return Just(true);
 }
 
+bool v8::Object::Set(v8::Local<Value> key, v8::Local<Value> value) {
+  auto context = ContextFromNeverReadOnlySpaceObject(Utils::OpenHandle(this));
+  return Set(context, key, value).FromMaybe(false);
+}
+
 Maybe<bool> v8::Object::Set(v8::Local<v8::Context> context, uint32_t index,
                             v8::Local<Value> value) {
   auto isolate = reinterpret_cast<i::Isolate*>(context->GetIsolate());
@@ -4001,6 +3999,11 @@ Maybe<bool> v8::Object::Set(v8::Local<v8::Context> context, uint32_t index,
   return Just(true);
 }
 
+bool v8::Object::Set(uint32_t index, v8::Local<Value> value) {
+  auto context = ContextFromNeverReadOnlySpaceObject(Utils::OpenHandle(this));
+  return Set(context, index, value).FromMaybe(false);
+}
+
 Maybe<bool> v8::Object::CreateDataProperty(v8::Local<v8::Context> context,
                                            v8::Local<Name> key,
                                            v8::Local<Value> value) {
@@ -4218,6 +4221,11 @@ MaybeLocal<Value> v8::Object::Get(Local<v8::Context> context,
   RETURN_ESCAPED(Utils::ToLocal(result));
 }
 
+Local<Value> v8::Object::Get(v8::Local<Value> key) {
+  auto context = ContextFromNeverReadOnlySpaceObject(Utils::OpenHandle(this));
+  RETURN_TO_LOCAL_UNCHECKED(Get(context, key), Value);
+}
+
 MaybeLocal<Value> v8::Object::Get(Local<Context> context, uint32_t index) {
   PREPARE_FOR_EXECUTION(context, Object, Get, Value);
   auto self = Utils::OpenHandle(this);
@@ -4228,6 +4236,11 @@ MaybeLocal<Value> v8::Object::Get(Local<Context> context, uint32_t index) {
   RETURN_ESCAPED(Utils::ToLocal(result));
 }
 
+Local<Value> v8::Object::Get(uint32_t index) {
+  auto context = ContextFromNeverReadOnlySpaceObject(Utils::OpenHandle(this));
+  RETURN_TO_LOCAL_UNCHECKED(Get(context, index), Value);
+}
+
 MaybeLocal<Value> v8::Object::GetPrivate(Local<Context> context,
                                          Local<Private> key) {
   return Get(context, Local<Value>(reinterpret_cast<Value*>(*key)));
@@ -10651,6 +10664,7 @@ void InvokeFunctionCallback(const v8::FunctionCallbackInfo<v8::Value>& info,
 #undef EXCEPTION_BAILOUT_CHECK_SCOPED_DO_NOT_USE
 #undef RETURN_ON_FAILED_EXECUTION
 #undef RETURN_ON_FAILED_EXECUTION_PRIMITIVE
+#undef RETURN_TO_LOCAL_UNCHECKED
 #undef RETURN_ESCAPED
 #undef SET_FIELD_WRAPPED
 #undef NEW_STRING

deps/v8/test/unittests/api/resource-constraints-unittest.cc

@@ -10,6 +10,7 @@
 
 namespace v8 {
 
+/* These tests do not apply on Node 12.
 TEST(ResourceConstraints, ConfigureDefaultsFromHeapSizeSmall) {
   const size_t KB = static_cast<size_t>(i::KB);
   const size_t MB = static_cast<size_t>(i::MB);
@@ -39,6 +40,7 @@ TEST(ResourceConstraints, ConfigureDefaultsFromHeapSizeLarge) {
   ASSERT_EQ(3 * 512 * pm * KB,
             constraints.initial_young_generation_size_in_bytes());
 }
+*/
 
 TEST(ResourceConstraints, ConfigureDefaults) {
   const size_t KB = static_cast<size_t>(i::KB);