deps: sync V8 gypfiles with 7.1

Enable v8_enable_embedded_builtins.
Reorder conditions proccessing for `run_mksnapshot`.

deps,v8: link with `atomic` for platforms lacking CAS
Fixes: nodejs/node-v8#81

Co-authored-by: Michaël Zasso <targos@protonmail.com>
PR-URL: #23423
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Myles Borins <myles.borins@gmail.com>

Author: refack

Diff for: common.gypi

@@ -29,26 +29,53 @@
 
     'openssl_fips%': '',
 
+    # Some STL containers (e.g. std::vector) do not preserve ABI compatibility
+    # between debug and non-debug mode.
+    'disable_glibcxx_debug': 1,
+
+    # Don't use ICU data file (icudtl.dat) from V8, we use our own.
+    'icu_use_data_file_flag%': 0,
+
     # 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.0',
+    'v8_embedder_string': '-node.1',
+
+    ##### V8 defaults for Node.js #####
+
+    # Old time default, now explicitly stated.
+    'v8_use_snapshot': 'true',
+
+    # Refs: https://github.com/nodejs/node/issues/23122
+    # Refs: https://github.com/nodejs/node/issues/23167
+    # Enable compiler warnings when using V8_DEPRECATED apis.
+    'v8_deprecation_warnings': 1,
+    # Enable compiler warnings when using V8_DEPRECATE_SOON apis.
+    'v8_imminent_deprecation_warnings': 1,
 
     # Enable disassembler for `--print-code` v8 options
     'v8_enable_disassembler': 1,
 
     # Don't bake anything extra into the snapshot.
-    'v8_use_external_startup_data%': 0,
+    'v8_use_external_startup_data': 0,
+
+    # https://github.com/nodejs/node/pull/22920/files#r222779926
+    'v8_enable_handle_zapping': 0,
 
     # Disable V8 untrusted code mitigations.
     # See https://github.com/v8/v8/wiki/Untrusted-code-mitigations
     'v8_untrusted_code_mitigations': 'false',
 
-    # Some STL containers (e.g. std::vector) do not preserve ABI compatibility
-    # between debug and non-debug mode.
-    'disable_glibcxx_debug': 1,
+    # Still WIP in V8 7.1
+    'v8_enable_pointer_compression': 'false',
 
-    # Don't use ICU data file (icudtl.dat) from V8, we use our own.
-    'icu_use_data_file_flag%': 0,
+    # New in V8 7.1
+    'v8_enable_embedded_builtins': 'true',
+
+    # This is more of a V8 dev setting
+    # https://github.com/nodejs/node/pull/22920/files#r222779926
+    'v8_enable_fast_mksnapshot': 0,
+
+    ##### end V8 defaults #####
 
     'conditions': [
       ['target_arch=="arm64"', {

Diff for: deps/v8/gypfiles/features.gypi

@@ -31,6 +31,8 @@
   'variables': {
     'v8_target_arch%': '<(target_arch)',
 
+    'v8_current_cpu%': '<(target_arch)',
+
     # Emulate GN variables
     'conditions': [
       ['OS=="android"', { # GYP reverts OS to linux so use `-D OS=android`
@@ -106,7 +108,25 @@
     # Currently set for node by common.gypi, avoiding default because of gyp file bug.
     # Should be turned on only for debugging.
     #'v8_enable_handle_zapping%': 0,
+
+    'v8_enable_pointer_compression%': 'false',
+
+    'v8_enable_embedded_builtins%': 'true',
+
+    'v8_perf_prof_unwinding_info%': 0,
+
+    'v8_enable_fast_mksnapshot%': 0,
   },
+
+  'conditions': [
+    # V8's predicate inverted since we default to 'true' and set 'false' for unsupported cases.
+    #      v8_use_snapshot         &&  v8_current_cpu != "x86" &&    !is_aix &&  (  !is_win || is_clang)
+    ['not (v8_use_snapshot=="true" and v8_target_arch !="ia32" and OS!="aix" and (OS!="win" or clang==1))', {
+      'variables': {
+        'v8_enable_embedded_builtins': 'false',
+      }
+    }],
+  ],
   'target_defaults': {
     'conditions': [
       ['v8_embedder_string!=""', {
@@ -170,6 +190,15 @@
       # ['v8_enable_handle_zapping==1', {
       #  'defines': ['ENABLE_HANDLE_ZAPPING',],
       # }],
+      ['v8_enable_pointer_compression=="true"', {
+        'defines': ['V8_COMPRESS_POINTERS',],
+      }],
+      ['v8_enable_embedded_builtins=="true"', {
+        'defines': [
+          'V8_EMBEDDED_BUILTINS',
+          'V8_EMBEDDED_BYTECODE_HANDLERS',
+        ],
+      }],
     ],  # conditions
     'defines': [
       'V8_GYP_BUILD',

Diff for: deps/v8/gypfiles/v8-monolithic.gyp

@@ -7,8 +7,7 @@
     'v8_code': 1,
     'v8_random_seed%': 314159265,
     'v8_vector_stores%': 0,
-    'embed_script%': "",
-    'warmup_script%': "",
+    'v8_embed_script%': "",
     'v8_extra_library_files%': [],
     'v8_experimental_extra_library_files%': [],
     'mksnapshot_exec': '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)mksnapshot<(EXECUTABLE_SUFFIX)',