Upgrade V8 binaries for 12.9.202.24 version

deps/include/cppgc/DEPS

@@ -2,6 +2,7 @@ include_rules = [
   "-include",
   "+v8config.h",
   "+v8-platform.h",
+  "+v8-source-location.h",
   "+cppgc",
   "-src",
   "+libplatform/libplatform.h",

deps/include/cppgc/allocation.h

@@ -47,7 +47,7 @@ namespace internal {
 // Similar to C++17 std::align_val_t;
 enum class AlignVal : size_t {};
 
-class V8_EXPORT MakeGarbageCollectedTraitInternal {
+class MakeGarbageCollectedTraitInternal {
  protected:
   static inline void MarkObjectAsFullyConstructed(const void* payload) {
     // See api_constants for an explanation of the constants.
@@ -121,16 +121,15 @@ class V8_EXPORT MakeGarbageCollectedTraitInternal {
   };
 
  private:
-  static void* CPPGC_DEFAULT_ALIGNED Allocate(cppgc::AllocationHandle&, size_t,
-                                              GCInfoIndex);
-  static void* CPPGC_DOUBLE_WORD_ALIGNED Allocate(cppgc::AllocationHandle&,
-                                                  size_t, AlignVal,
-                                                  GCInfoIndex);
-  static void* CPPGC_DEFAULT_ALIGNED Allocate(cppgc::AllocationHandle&, size_t,
-                                              GCInfoIndex, CustomSpaceIndex);
-  static void* CPPGC_DOUBLE_WORD_ALIGNED Allocate(cppgc::AllocationHandle&,
-                                                  size_t, AlignVal, GCInfoIndex,
-                                                  CustomSpaceIndex);
+  V8_EXPORT static void* CPPGC_DEFAULT_ALIGNED
+  Allocate(cppgc::AllocationHandle&, size_t, GCInfoIndex);
+  V8_EXPORT static void* CPPGC_DOUBLE_WORD_ALIGNED
+  Allocate(cppgc::AllocationHandle&, size_t, AlignVal, GCInfoIndex);
+  V8_EXPORT static void* CPPGC_DEFAULT_ALIGNED
+  Allocate(cppgc::AllocationHandle&, size_t, GCInfoIndex, CustomSpaceIndex);
+  V8_EXPORT static void* CPPGC_DOUBLE_WORD_ALIGNED
+  Allocate(cppgc::AllocationHandle&, size_t, AlignVal, GCInfoIndex,
+           CustomSpaceIndex);
 
   friend class HeapObjectHeader;
 };

deps/include/cppgc/cross-thread-persistent.h

@@ -148,10 +148,11 @@ class BasicCrossThreadPersistent final : public CrossThreadPersistentBase,
 
   template <typename U, typename MemberBarrierPolicy,
             typename MemberWeaknessTag, typename MemberCheckingPolicy,
+            typename MemberStorageType,
             typename = std::enable_if_t<std::is_base_of<T, U>::value>>
   BasicCrossThreadPersistent(
       internal::BasicMember<U, MemberBarrierPolicy, MemberWeaknessTag,
-                            MemberCheckingPolicy>
+                            MemberCheckingPolicy, MemberStorageType>
           member,
       const SourceLocation& loc = SourceLocation::Current())
       : BasicCrossThreadPersistent(member.Get(), loc) {}
@@ -230,10 +231,11 @@ class BasicCrossThreadPersistent final : public CrossThreadPersistentBase,
   // Assignment from member.
   template <typename U, typename MemberBarrierPolicy,
             typename MemberWeaknessTag, typename MemberCheckingPolicy,
+            typename MemberStorageType,
             typename = std::enable_if_t<std::is_base_of<T, U>::value>>
   BasicCrossThreadPersistent& operator=(
       internal::BasicMember<U, MemberBarrierPolicy, MemberWeaknessTag,
-                            MemberCheckingPolicy>
+                            MemberCheckingPolicy, MemberStorageType>
           member) {
     return operator=(member.Get());
   }

deps/include/cppgc/garbage-collected.h

@@ -94,6 +94,14 @@ class GarbageCollectedMixin {
  public:
   using IsGarbageCollectedMixinTypeMarker = void;
 
+  // Must use MakeGarbageCollected.
+  void* operator new(size_t) = delete;
+  void* operator new[](size_t) = delete;
+  // The garbage collector is taking care of reclaiming the object.
+  // Not override the non-array varaint of `delete` to not conflict with the
+  // operator in GarbageCollected above.
+  void operator delete[](void*) = delete;
+
   /**
    * This Trace method must be overriden by objects inheriting from
    * GarbageCollectedMixin.

deps/include/cppgc/heap-consistency.h

@@ -62,10 +62,10 @@ class HeapConsistency final {
    * \returns whether a write barrier is needed and which barrier to invoke.
    */
   template <typename T, typename WeaknessTag, typename WriteBarrierPolicy,
-            typename CheckingPolicy>
+            typename CheckingPolicy, typename StorageType>
   static V8_INLINE WriteBarrierType GetWriteBarrierType(
       const internal::BasicMember<T, WeaknessTag, WriteBarrierPolicy,
-                                  CheckingPolicy>& value,
+                                  CheckingPolicy, StorageType>& value,
       WriteBarrierParams& params) {
     return internal::WriteBarrier::GetWriteBarrierType(
         value.GetRawSlot(), value.GetRawStorage(), params);

deps/include/cppgc/heap-statistics.h

@@ -102,6 +102,8 @@ struct HeapStatistics final {
   size_t resident_size_bytes = 0;
   /** Amount of memory actually used on the heap. */
   size_t used_size_bytes = 0;
+  /** Memory retained in the page pool, not used directly by the heap. */
+  size_t pooled_memory_size_bytes = 0;
   /** Detail level of this HeapStatistics. */
   DetailLevel detail_level;
 

deps/include/cppgc/internal/api-constants.h

@@ -30,23 +30,47 @@ static constexpr size_t kFullyConstructedBitFieldOffsetFromPayload =
 // Mask for in-construction bit.
 static constexpr uint16_t kFullyConstructedBitMask = uint16_t{1};
 
-static constexpr size_t kPageSize = size_t{1} << 17;
+static constexpr size_t kPageSizeBits = 17;
+static constexpr size_t kPageSize = size_t{1} << kPageSizeBits;
 
-#if defined(V8_TARGET_ARCH_ARM64) && defined(V8_OS_MACOS)
+#if defined(V8_HOST_ARCH_ARM64) && defined(V8_OS_DARWIN)
+constexpr size_t kGuardPageSize = 0;
+#elif defined(V8_HOST_ARCH_PPC64)
+constexpr size_t kGuardPageSize = 0;
+#elif defined(V8_HOST_ARCH_LOONG64) || defined(V8_HOST_ARCH_MIPS64)
 constexpr size_t kGuardPageSize = 0;
 #else
 constexpr size_t kGuardPageSize = 4096;
 #endif
 
 static constexpr size_t kLargeObjectSizeThreshold = kPageSize / 2;
 
+#if defined(CPPGC_POINTER_COMPRESSION)
+#if defined(CPPGC_ENABLE_LARGER_CAGE)
+constexpr unsigned kPointerCompressionShift = 3;
+#else   // !defined(CPPGC_ENABLE_LARGER_CAGE)
+constexpr unsigned kPointerCompressionShift = 1;
+#endif  // !defined(CPPGC_ENABLE_LARGER_CAGE)
+#endif  // !defined(CPPGC_POINTER_COMPRESSION)
+
 #if defined(CPPGC_CAGED_HEAP)
 #if defined(CPPGC_2GB_CAGE)
-constexpr size_t kCagedHeapReservationSize = static_cast<size_t>(2) * kGB;
-#else   // !defined(CPPGC_2GB_CAGE)
-constexpr size_t kCagedHeapReservationSize = static_cast<size_t>(4) * kGB;
+constexpr size_t kCagedHeapDefaultReservationSize =
+    static_cast<size_t>(2) * kGB;
+constexpr size_t kCagedHeapMaxReservationSize =
+    kCagedHeapDefaultReservationSize;
+#else  // !defined(CPPGC_2GB_CAGE)
+constexpr size_t kCagedHeapDefaultReservationSize =
+    static_cast<size_t>(4) * kGB;
+#if defined(CPPGC_POINTER_COMPRESSION)
+constexpr size_t kCagedHeapMaxReservationSize =
+    size_t{1} << (31 + kPointerCompressionShift);
+#else   // !defined(CPPGC_POINTER_COMPRESSION)
+constexpr size_t kCagedHeapMaxReservationSize =
+    kCagedHeapDefaultReservationSize;
+#endif  // !defined(CPPGC_POINTER_COMPRESSION)
 #endif  // !defined(CPPGC_2GB_CAGE)
-constexpr size_t kCagedHeapReservationAlignment = kCagedHeapReservationSize;
+constexpr size_t kCagedHeapReservationAlignment = kCagedHeapMaxReservationSize;
 #endif  // defined(CPPGC_CAGED_HEAP)
 
 static constexpr size_t kDefaultAlignment = sizeof(void*);
@@ -57,6 +81,9 @@ static constexpr size_t kMaxSupportedAlignment = 2 * kDefaultAlignment;
 // Granularity of heap allocations.
 constexpr size_t kAllocationGranularity = sizeof(void*);
 
+// Default cacheline size.
+constexpr size_t kCachelineSize = 64;
+
 }  // namespace api_constants
 
 }  // namespace internal

deps/include/cppgc/internal/caged-heap-local-data.h

@@ -46,7 +46,11 @@ class V8_EXPORT AgeTable final {
   enum class AdjacentCardsPolicy : uint8_t { kConsider, kIgnore };
 
   static constexpr size_t kCardSizeInBytes =
-      api_constants::kCagedHeapReservationSize / kRequiredSize;
+      api_constants::kCagedHeapDefaultReservationSize / kRequiredSize;
+
+  static constexpr size_t CalculateAgeTableSizeForHeapSize(size_t heap_size) {
+    return heap_size / kCardSizeInBytes;
+  }
 
   void SetAge(uintptr_t cage_offset, Age age) {
     table_[card(cage_offset)] = age;
@@ -81,23 +85,29 @@ class V8_EXPORT AgeTable final {
 #endif  // !V8_HAS_BUILTIN_CTZ
     static_assert((1 << kGranularityBits) == kCardSizeInBytes);
     const size_t entry = offset >> kGranularityBits;
-    CPPGC_DCHECK(table_.size() > entry);
+    CPPGC_DCHECK(CagedHeapBase::GetAgeTableSize() > entry);
     return entry;
   }
 
-  std::array<Age, kRequiredSize> table_;
+#if defined(V8_CC_GNU)
+  // gcc disallows flexible arrays in otherwise empty classes.
+  Age table_[0];
+#else   // !defined(V8_CC_GNU)
+  Age table_[];
+#endif  // !defined(V8_CC_GNU)
 };
 
-static_assert(sizeof(AgeTable) == 1 * api_constants::kMB,
-              "Size of AgeTable is 1MB");
-
 #endif  // CPPGC_YOUNG_GENERATION
 
 struct CagedHeapLocalData final {
   V8_INLINE static CagedHeapLocalData& Get() {
     return *reinterpret_cast<CagedHeapLocalData*>(CagedHeapBase::GetBase());
   }
 
+  static constexpr size_t CalculateLocalDataSizeForHeapSize(size_t heap_size) {
+    return AgeTable::CalculateAgeTableSizeForHeapSize(heap_size);
+  }
+
 #if defined(CPPGC_YOUNG_GENERATION)
   AgeTable age_table;
 #endif

deps/include/cppgc/internal/caged-heap.h

@@ -33,24 +33,31 @@ class V8_EXPORT CagedHeapBase {
 
   V8_INLINE static bool AreWithinCage(const void* addr1, const void* addr2) {
 #if defined(CPPGC_2GB_CAGE)
-    static constexpr size_t kHalfWordShift = sizeof(uint32_t) * CHAR_BIT - 1;
+    static constexpr size_t kHeapBaseShift = sizeof(uint32_t) * CHAR_BIT - 1;
 #else   //! defined(CPPGC_2GB_CAGE)
-    static constexpr size_t kHalfWordShift = sizeof(uint32_t) * CHAR_BIT;
+#if defined(CPPGC_POINTER_COMPRESSION)
+    static constexpr size_t kHeapBaseShift =
+        31 + api_constants::kPointerCompressionShift;
+#else   // !defined(CPPGC_POINTER_COMPRESSION)
+    static constexpr size_t kHeapBaseShift = sizeof(uint32_t) * CHAR_BIT;
+#endif  // !defined(CPPGC_POINTER_COMPRESSION)
 #endif  //! defined(CPPGC_2GB_CAGE)
-    static_assert((static_cast<size_t>(1) << kHalfWordShift) ==
-                  api_constants::kCagedHeapReservationSize);
+    static_assert((static_cast<size_t>(1) << kHeapBaseShift) ==
+                  api_constants::kCagedHeapMaxReservationSize);
     CPPGC_DCHECK(g_heap_base_);
     return !(((reinterpret_cast<uintptr_t>(addr1) ^ g_heap_base_) |
               (reinterpret_cast<uintptr_t>(addr2) ^ g_heap_base_)) >>
-             kHalfWordShift);
+             kHeapBaseShift);
   }
 
   V8_INLINE static uintptr_t GetBase() { return g_heap_base_; }
+  V8_INLINE static size_t GetAgeTableSize() { return g_age_table_size_; }
 
  private:
   friend class CagedHeap;
 
   static uintptr_t g_heap_base_;
+  static size_t g_age_table_size_;
 };
 
 }  // namespace internal

deps/include/cppgc/internal/compiler-specific.h

@@ -5,6 +5,8 @@
 #ifndef INCLUDE_CPPGC_INTERNAL_COMPILER_SPECIFIC_H_
 #define INCLUDE_CPPGC_INTERNAL_COMPILER_SPECIFIC_H_
 
+#include "v8config.h"  // NOLINT(build/include_directory)
+
 namespace cppgc {
 
 #if defined(__has_attribute)
@@ -21,7 +23,13 @@ namespace cppgc {
 
 // [[no_unique_address]] comes in C++20 but supported in clang with -std >=
 // c++11.
-#if CPPGC_HAS_CPP_ATTRIBUTE(no_unique_address)
+#if defined(V8_CC_MSVC) && CPPGC_HAS_CPP_ATTRIBUTE(msvc::no_unique_address)
+// Unfortunately MSVC ignores [[no_unique_address]] (see
+// https://devblogs.microsoft.com/cppblog/msvc-cpp20-and-the-std-cpp20-switch/#msvc-extensions-and-abi),
+// and clang-cl matches it for ABI compatibility reasons. We need to prefer
+// [[msvc::no_unique_address]] when available if we actually want any effect.
+#define CPPGC_NO_UNIQUE_ADDRESS [[msvc::no_unique_address]]
+#elif CPPGC_HAS_CPP_ATTRIBUTE(no_unique_address)
 #define CPPGC_NO_UNIQUE_ADDRESS [[no_unique_address]]
 #else
 #define CPPGC_NO_UNIQUE_ADDRESS