Bug: 694100
    Add actions for pax marking mkcodecache and node_mksnapshot
    to disable mprotect for pax enable kernel.
    Reported-by: Attila Tóth <atoth@atoth.sote.hu>
    Co-developed-by: Attila Tóth <atoth@atoth.sote.hu>
    Signed-off-by: Magnus Granberg <zorry@gentoo.org>
    
--- a/node.gyp	2019-10-23 11:52:41.000000000 +0200
+++ a/node.gyp	2019-11-12 20:58:43.957881862 +0100
@@ -233,7 +233,9 @@
       'deps/acorn-plugins/acorn-static-class-features/index.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': [
       [ 'node_shared=="true"', {
         'node_target_type%': 'shared_library',
@@ -436,10 +438,24 @@
           ],
           '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',
@@ -461,10 +477,24 @@
           ],
           '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',