nixpkgs/pkgs/development/libraries/qt-5/5.9/qtwebengine-paxmark-mksnapshot.patch

Index: qtwebengine-opensource-src-5.9.0/src/3rdparty/chromium/v8/src/v8.gyp
===================================================================
--- qtwebengine-opensource-src-5.9.0.orig/src/3rdparty/chromium/v8/src/v8.gyp
+++ qtwebengine-opensource-src-5.9.0/src/3rdparty/chromium/v8/src/v8.gyp
@@ -36,6 +36,7 @@
     'v8_experimental_extra_library_files%': [],
     'v8_enable_inspector%': 0,
     'mksnapshot_exec': '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)mksnapshot<(EXECUTABLE_SUFFIX)',
+    'mksnapshot_u_exec': '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)mksnapshot_u<(EXECUTABLE_SUFFIX)',
     'mkpeephole_exec': '<(PRODUCT_DIR)/<(EXECUTABLE_PREFIX)mkpeephole<(EXECUTABLE_SUFFIX)',
     'v8_os_page_size%': 0,
   },
@@ -2432,7 +2433,7 @@
         ]
     },
     {
-      'target_name': 'mksnapshot',
+      'target_name': 'mksnapshot_u',
       'type': 'executable',
       'dependencies': [
         'v8_base',
@@ -2485,5 +2486,26 @@
         }],
       ],
     },
+    {
+      'target_name': 'mksnapshot',
+      'type': 'executable',
+      'dependencies': ['mksnapshot_u'],
+      'actions': [
+        {
+          'action_name': 'paxmark_m_mksnapshot',
+          'inputs': [
+            '<(mksnapshot_u_exec)',
+          ],
+          'outputs': [
+            '<(mksnapshot_exec)',
+          ],
+          'action': [
+            'sh',
+            '-c',
+            'cp <(mksnapshot_u_exec) <(mksnapshot_exec) && paxctl -czexm <(mksnapshot_exec)',
+          ],
+        },
+      ],
+    },
   ],
 }