diff --git a/.vscode/launch.json b/.vscode/launch.json
index db0e149..e9ec5d1 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -33,7 +33,9 @@
             "type": "cppdbg",
             "request": "launch",
             "program": "${workspaceFolder}/build/examples/elfdump/elfdump",
-            "args": ["tests/elf_examples/hello_32"],
+            "args": [
+                "tests/elf_examples/hello_32"
+            ],
             "stopAtEntry": false,
             "cwd": "${workspaceFolder}",
             "environment": [],
@@ -55,10 +57,10 @@
             "request": "launch",
             "program": "${workspaceFolder}/build/examples/proc_mem/proc_mem",
             "args": [
-                "2919",
+                "11706",
                 "/usr/bin/bash"
             ],
-            "sudo" : true,
+            "sudo": true,
             "stopAtEntry": false,
             "cwd": "${workspaceFolder}",
             "environment": [],
@@ -71,7 +73,30 @@
                     "ignoreFailures": true
                 }
             ],
-            "miDebuggerPath": "/home/user/ELFIO/examples/proc_mem/sudo_gdb.sh"
+            "miDebuggerPath": "/home/user/ELFIO/examples/sudo_gdb.sh"
+        },
+        {
+            "name": "Run dump for /proc/kcore",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${workspaceFolder}/build/examples/elfdump/elfdump",
+            "args": [
+                "/proc/kcore"
+            ],
+            "sudo": true,
+            "stopAtEntry": false,
+            "cwd": "${workspaceFolder}",
+            "environment": [],
+            "externalConsole": false,
+            "MIMode": "gdb",
+            "setupCommands": [
+                {
+                    "description": "Enable pretty-printing for gdb",
+                    "text": "-enable-pretty-printing",
+                    "ignoreFailures": true
+                }
+            ],
+            "miDebuggerPath": "/home/user/ELFIO/examples/sudo_gdb.sh"
         }
     ]
 }
\ No newline at end of file
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8a1a0e0..5601743 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -44,12 +44,12 @@ if (ELFIO_BUILD_EXAMPLES OR ELFIO_BUILD_TESTS)
 endif()
 
 if (ELFIO_BUILD_EXAMPLES)
-    set (CMAKE_CXX_FLAGS "-Wall")
+    set (CMAKE_CXX_FLAGS "-Wall -Wextra")
     add_subdirectory(examples)
 endif()
 
 if (ELFIO_BUILD_TESTS AND IS_TOP_PROJECT)
-    set (CMAKE_CXX_FLAGS "-Wall")
+    set (CMAKE_CXX_FLAGS "-Wall -Wextra")
     enable_testing()
     add_custom_target(check COMMAND ${CMAKE_CTEST_COMMAND} USES_TERMINAL)
     add_subdirectory(tests)
diff --git a/examples/proc_mem/sudo_gdb.sh b/examples/proc_mem/sudo_gdb.sh
deleted file mode 100755
index ec1cf29..0000000
--- a/examples/proc_mem/sudo_gdb.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-# The file is used for VSCode debugging ability. Use it as following:
-#         "miDebuggerPath": "/home/user/ELFIO/examples/proc_mem/sudo_gdb.sh"
-sudo /usr/bin/gdb "$@"
diff --git a/examples/sudo_gdb.sh b/examples/sudo_gdb.sh
new file mode 100755
index 0000000..bb40b1f
--- /dev/null
+++ b/examples/sudo_gdb.sh
@@ -0,0 +1,3 @@
+# The file is used for VSCode debugging with sudo. Use it as following:
+#         "miDebuggerPath": "/home/user/ELFIO/examples/sudo_gdb.sh"
+sudo /usr/bin/gdb "$@"