diff -urNp node-v15.8.0-orig/node.gyp node-v15.8.0-dwok/node.gyp
--- node-v15.8.0-orig/node.gyp	2021-02-24 22:21:44.202911780 +0100
+++ node-v15.8.0-dwok/node.gyp	2021-02-24 22:25:34.298281739 +0100
@@ -55,7 +55,9 @@
       'deps/undici/undici.js',
     ],
     'node_mksnapshot_exec': '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)node_mksnapshot<(EXECUTABLE_SUFFIX)',
+    'node_mksnapshot_u_exec': '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)node_mksnapshot_u<(EXECUTABLE_SUFFIX)',
     'mkcodecache_exec': '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)mkcodecache<(EXECUTABLE_SUFFIX)',
+    'mkcodecache_u_exec': '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)mkcodecache_u<(EXECUTABLE_SUFFIX)',
     'conditions': [
       ['GENERATOR == "ninja"', {
         'node_text_start_object_path': 'src/large_pages/node_text_start.node_text_start.o'
@@ -293,10 +295,24 @@
           ],
           'actions': [
             {
+              'action_name': 'run_pax_mkcodecache',
+              'inputs': [
+                '<(mkcodecache_exec)',
+              ],
+              'outputs': [
+                '<(mkcodecache_u_exec)',
+              ],
+              'action': [
+                'bash',
+                '-c',
+                'mv <(mkcodecache_exec) <(mkcodecache_u_exec) && paxmark.sh m <(mkcodecache_u_exec)',
+              ],
+            },
+            {
               'action_name': 'run_mkcodecache',
               'process_outputs_as_sources': 1,
               'inputs': [
-                '<(mkcodecache_exec)',
+                '<(mkcodecache_u_exec)',
               ],
               'outputs': [
                 '<(SHARED_INTERMEDIATE_DIR)/node_code_cache.cc',
@@ -340,10 +356,24 @@
             }, {
               'actions': [
                 {
+                  'action_name': 'run_pax_mksnapshot',
+                  'inputs': [
+                    '<(node_mksnapshot_exec)',
+                  ],
+                  'outputs': [
+                    '<(node_mksnapshot_u_exec)',
+                  ],
+                  'action': [
+                    'bash',
+                    '-c',
+                    'mv <(node_mksnapshot_exec) <(node_mksnapshot_u_exec) && paxmark.sh m <(node_mksnapshot_u_exec)',
+                  ],
+                },
+                {
                   'action_name': 'node_mksnapshot',
                   'process_outputs_as_sources': 1,
                   'inputs': [
-                    '<(node_mksnapshot_exec)',
+                    '<(node_mksnapshot_u_exec)',
                   ],
                   'outputs': [
                     '<(SHARED_INTERMEDIATE_DIR)/node_snapshot.cc',
diff -urNp node-v15.8.0-orig/tools/v8_gypfiles/v8.gyp node-v15.8.0-dwok/tools/v8_gypfiles/v8.gyp
--- node-v15.8.0-orig/tools/v8_gypfiles/v8.gyp	2021-02-24 22:21:44.654910571 +0100
+++ node-v15.8.0-dwok/tools/v8_gypfiles/v8.gyp	2021-02-24 22:25:54.834224791 +0100
@@ -9,6 +9,7 @@
     'v8_vector_stores%': 0,
     'v8_embed_script%': "",
     'mksnapshot_exec': '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)mksnapshot<(EXECUTABLE_SUFFIX)',
+    'mksnapshot_u_exec': '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)mksnapshot_u<(EXECUTABLE_SUFFIX)',
     'v8_os_page_size%': 0,
     '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',
@@ -1413,7 +1414,7 @@
       ],
     },  # bytecode_builtins_list_generator
     {
-      'target_name': 'mksnapshot',
+      'target_name': 'mksnapshot_u',
       'type': 'executable',
       'dependencies': [
         'v8_base_without_compiler',
@@ -1432,6 +1433,27 @@
           'toolsets': ['host'],
         }],
       ],
+    },  # mksnapshot_u
+    {
+      'target_name': 'mksnapshot',
+      'type': 'none',
+      'dependencies': ['mksnapshot_u'],
+      'actions': [
+        {
+          'action_name': 'paxmark_mksnapshot',
+          'inputs': [
+            '<(mksnapshot_u_exec)',
+          ],
+          'outputs': [
+            '<(mksnapshot_exec)',
+          ],
+          'action': [
+            'bash',
+            '-c',
+            'cp <(mksnapshot_u_exec) <(mksnapshot_exec) && paxmark.sh m <(mksnapshot_exec)'
+          ],
+        },
+      ],
     },  # mksnapshot
     {
       'target_name': 'torque',
