diff --git a/tools/v8_gypfiles/features.gypi b/tools/v8_gypfiles/features.gypi
index b24e0b332b3c1d..0b518a2f851ce9 100644
--- a/tools/v8_gypfiles/features.gypi
+++ b/tools/v8_gypfiles/features.gypi
@@ -128,6 +128,9 @@
     'v8_enable_pointer_compression%': 0,
     'v8_enable_31bit_smis_on_64bit_arch%': 0,
 
+    # Reverse JS arguments order in the stack (sets -dV8_REVERSE_JSARGS).
+    'v8_enable_reverse_jsargs%': 0,
+
     # Sets -dOBJECT_PRINT.
     'v8_enable_object_print%': 0,
 
@@ -293,6 +296,9 @@
       },{
         'defines!': ['V8_IMMINENT_DEPRECATION_WARNINGS',],
       }],
+      ['v8_enable_reverse_jsargs==1', {
+        'defines': ['V8_REVERSE_JSARGS',],
+      }],
       ['v8_enable_i18n_support==1', {
         'defines': ['V8_INTL_SUPPORT',],
       }],
diff --git a/tools/v8_gypfiles/v8.gyp b/tools/v8_gypfiles/v8.gyp
index f8259069c9ed44..2fceb15e5c0a1c 100644
--- a/tools/v8_gypfiles/v8.gyp
+++ b/tools/v8_gypfiles/v8.gyp
@@ -13,6 +13,7 @@
     'generate_bytecode_output_root': '<(SHARED_INTERMEDIATE_DIR)/generate-bytecode-output-root',
     'generate_bytecode_builtins_list_output': '<(generate_bytecode_output_root)/builtins-generated/bytecodes-builtins-list.h',
     'torque_files': [
+      "<(V8_ROOT)/src/builtins/aggregate-error.tq",
       "<(V8_ROOT)/src/builtins/array-copywithin.tq",
       "<(V8_ROOT)/src/builtins/array-every.tq",
       "<(V8_ROOT)/src/builtins/array-filter.tq",
@@ -38,18 +39,21 @@
       "<(V8_ROOT)/src/builtins/bigint.tq",
       "<(V8_ROOT)/src/builtins/boolean.tq",
       "<(V8_ROOT)/src/builtins/builtins-string.tq",
-      "<(V8_ROOT)/src/builtins/collections.tq",
       "<(V8_ROOT)/src/builtins/cast.tq",
+      "<(V8_ROOT)/src/builtins/collections.tq",
+      "<(V8_ROOT)/src/builtins/conversion.tq",
       "<(V8_ROOT)/src/builtins/convert.tq",
       "<(V8_ROOT)/src/builtins/console.tq",
       "<(V8_ROOT)/src/builtins/data-view.tq",
       "<(V8_ROOT)/src/builtins/finalization-registry.tq",
       "<(V8_ROOT)/src/builtins/frames.tq",
       "<(V8_ROOT)/src/builtins/frame-arguments.tq",
+      "<(V8_ROOT)/src/builtins/function.tq",
       "<(V8_ROOT)/src/builtins/growable-fixed-array.tq",
       "<(V8_ROOT)/src/builtins/ic-callable.tq",
       "<(V8_ROOT)/src/builtins/ic.tq",
       "<(V8_ROOT)/src/builtins/internal-coverage.tq",
+      "<(V8_ROOT)/src/builtins/internal.tq",
       "<(V8_ROOT)/src/builtins/iterator.tq",
       "<(V8_ROOT)/src/builtins/math.tq",
       "<(V8_ROOT)/src/builtins/number.tq",
@@ -103,11 +107,13 @@
       "<(V8_ROOT)/src/builtins/torque-internal.tq",
       "<(V8_ROOT)/src/builtins/typed-array-createtypedarray.tq",
       "<(V8_ROOT)/src/builtins/typed-array-every.tq",
+      "<(V8_ROOT)/src/builtins/typed-array-entries.tq",
       "<(V8_ROOT)/src/builtins/typed-array-filter.tq",
       "<(V8_ROOT)/src/builtins/typed-array-find.tq",
       "<(V8_ROOT)/src/builtins/typed-array-findindex.tq",
       "<(V8_ROOT)/src/builtins/typed-array-foreach.tq",
       "<(V8_ROOT)/src/builtins/typed-array-from.tq",
+      "<(V8_ROOT)/src/builtins/typed-array-keys.tq",
       "<(V8_ROOT)/src/builtins/typed-array-of.tq",
       "<(V8_ROOT)/src/builtins/typed-array-reduce.tq",
       "<(V8_ROOT)/src/builtins/typed-array-reduceright.tq",
@@ -116,6 +122,7 @@
       "<(V8_ROOT)/src/builtins/typed-array-some.tq",
       "<(V8_ROOT)/src/builtins/typed-array-sort.tq",
       "<(V8_ROOT)/src/builtins/typed-array-subarray.tq",
+      "<(V8_ROOT)/src/builtins/typed-array-values.tq",
       "<(V8_ROOT)/src/builtins/typed-array.tq",
       "<(V8_ROOT)/src/builtins/wasm.tq",
       "<(V8_ROOT)/src/ic/handler-configuration.tq",
@@ -136,7 +143,6 @@
       "<(V8_ROOT)/src/objects/free-space.tq",
       "<(V8_ROOT)/src/objects/heap-number.tq",
       "<(V8_ROOT)/src/objects/heap-object.tq",
-      "<(V8_ROOT)/src/objects/js-aggregate-error.tq",
       "<(V8_ROOT)/src/objects/js-array-buffer.tq",
       "<(V8_ROOT)/src/objects/js-array.tq",
       "<(V8_ROOT)/src/objects/js-collection-iterator.tq",
@@ -721,6 +727,7 @@
       'type': 'static_library',
       'dependencies': [
         # Code generators that only need to be build for the host.
+        'cppgc_base',
         'torque_generated_definitions',
         'v8_headers',
         'v8_libbase',
@@ -730,6 +737,7 @@
         # BUILD.gn public_deps
         'generate_bytecode_builtins_list',
         'run_torque',
+        'v8_cppgc_shared',
         'v8_maybe_icu',
         'v8_zlib',
       ],
@@ -1454,6 +1462,96 @@
         },
       ],
     },  # run_gen-regexp-special-case
+    {
+      'target_name': 'cppgc_base',
+      'type': 'none',
+      'conditions': [
+        ['want_separate_host_toolset', {
+          'toolsets': ['host', 'target'],
+        }],
+      ],
+      'direct_dependent_settings': {
+        'sources': [
+          '<!@pymod_do_main(GN-scraper "<(V8_ROOT)/BUILD.gn"  "v8_source_set.\\"cppgc_base.*?sources = ")',
+        ],
+      },
+    },  # cppgc_base
+    {
+      'target_name': 'v8_cppgc_shared',
+      'type': 'none',
+      'toolsets': ['host', 'target'],
+      'direct_dependent_settings': {
+        'sources': [
+          '<(V8_ROOT)/src/heap/base/stack.cc',
+          '<(V8_ROOT)/src/heap/base/stack.h',
+        ],
+        'conditions': [
+          ['clang or OS!="win"', {
+            'conditions': [
+              ['_toolset == "host" and host_arch == "x64" or _toolset == "target" and target_arch=="x64"', {
+                'sources': [
+                  '<(V8_ROOT)/src/heap/base/asm/x64/push_registers_asm.cc',
+                ],
+              }],
+              ['_toolset == "host" and host_arch == "ia32" or _toolset == "target" and target_arch=="ia32"', {
+                'sources': [
+                  '<(V8_ROOT)/src/heap/base/asm/ia32/push_registers_asm.cc',
+                ],
+              }],
+              ['_toolset == "host" and host_arch == "arm" or _toolset == "target" and target_arch=="arm"', {
+                'sources': [
+                  '<(V8_ROOT)/src/heap/base/asm/arm/push_registers_asm.cc',
+                ],
+              }],
+              ['_toolset == "host" and host_arch == "arm64" or _toolset == "target" and target_arch=="arm64"', {
+                'sources': [
+                  '<(V8_ROOT)/src/heap/base/asm/arm64/push_registers_asm.cc',
+                ],
+              }],
+              ['_toolset == "host" and host_arch == "ppc64" or _toolset == "target" and target_arch=="ppc64"', {
+                'sources': [
+                  '<(V8_ROOT)/src/heap/base/asm/ppc/push_registers_asm.cc',
+                ],
+              }],
+              ['_toolset == "host" and host_arch == "s390x" or _toolset == "target" and target_arch=="s390x"', {
+                'sources': [
+                  '<(V8_ROOT)/src/heap/base/asm/s390/push_registers_asm.cc',
+                ],
+              }],
+              ['_toolset == "host" and host_arch == "mips" or _toolset == "target" and target_arch=="mips" or _toolset == "host" and host_arch == "mipsel" or _toolset == "target" and target_arch=="mipsel"', {
+                'sources': [
+                  '<(V8_ROOT)/src/heap/base/asm/mips/push_registers_asm.cc',
+                ],
+              }],
+              ['_toolset == "host" and host_arch == "mips64" or _toolset == "target" and target_arch=="mips64" or _toolset == "host" and host_arch == "mips64el" or _toolset == "target" and target_arch=="mips64el"', {
+                'sources': [
+                  '<(V8_ROOT)/src/heap/base/asm/mips64/push_registers_asm.cc',
+                ],
+              }],
+            ]
+          }],
+          ['OS=="win"', {
+            'conditions': [
+              ['_toolset == "host" and host_arch == "x64" or _toolset == "target" and target_arch=="x64"', {
+                'sources': [
+                  '<(V8_ROOT)/src/heap/base/asm/x64/push_registers_masm.S',
+                ],
+              }],
+              ['_toolset == "host" and host_arch == "ia32" or _toolset == "target" and target_arch=="ia32"', {
+                'sources': [
+                  '<(V8_ROOT)/src/heap/base/asm/ia32/push_registers_masm.S',
+                ],
+              }],
+              ['_toolset == "host" and host_arch == "arm64" or _toolset == "target" and target_arch=="arm64"', {
+                'sources': [
+                  '<(V8_ROOT)/src/heap/base/asm/arm64/push_registers_masm.S',
+                ],
+              }],
+            ],
+          }],
+        ],
+      },
+    },  # v8_cppgc_shared
 
     ###############################################################################
     # Public targets
@@ -1593,8 +1691,6 @@
           '<(V8_ROOT)/src/objects/instance-type.h',
           '<(V8_ROOT)/src/objects/js-array-inl.h',
           '<(V8_ROOT)/src/objects/js-array.h',
-          '<(V8_ROOT)/src/objects/js-aggregate-error-inl.h',
-          '<(V8_ROOT)/src/objects/js-aggregate-error.h',
           '<(V8_ROOT)/src/objects/js-array-buffer-inl.h',
           '<(V8_ROOT)/src/objects/js-array-buffer.h',
           '<(V8_ROOT)/src/objects/js-objects-inl.h',