KGDB!

rungdb

@@ -3,11 +3,15 @@
 set -e
 
 arch=x86_64
-while getopts a: OPT; do
+kgdb=false
+while getopts a:k OPT; do
   case "$OPT" in
     a)
       arch=$OPTARG
       ;;
+    k)
+      kgdb=true
+      ;;
   esac
 done
 shift "$(($OPTIND - 1))"
@@ -19,33 +23,42 @@ fi
 
 gdb="$(pwd)/buildroot/output/host/usr/bin/${arch}-linux-gdb"
 cd buildroot/output/build/linux-*.*.*/
-case "$arch" in
-  x86_64)
-    # http://stackoverflow.com/questions/11408041/how-to-debug-the-linux-kernel-with-gdb-and-qemu/33203642#33203642
-    # http://stackoverflow.com/questions/4943857/linux-kernel-live-debugging-how-its-done-and-what-tools-are-used/42316607#42316607
-    # http://stackoverflow.com/questions/28607538/how-to-debug-linux-kernel-modules-with-qemu/44095831#44095831
+if $kgdb; then
     cmd="$gdb \
       -q \
       -ex 'add-auto-load-safe-path $(pwd)' \
       -ex 'file vmlinux' \
-      -ex 'set arch i386:x86-64:intel' \
-      -ex 'target remote localhost:1234' \
-      $brk \
-      -ex 'continue' \
-      -ex 'disconnect' \
-      -ex 'set arch i386:x86-64' \
-      -ex 'target remote localhost:1234' \
-      -ex 'lx-symbols ../kernel_module-1.0/'
+      -ex 'target remote localhost:1234'
     "
-    ;;
-  arm)
-    cmd="$gdb \
-      -q \
-      -ex 'add-auto-load-safe-path $(pwd)' \
-      -ex 'file vmlinux' \
-      -ex 'target remote localhost:1234' \
-      -ex 'lx-symbols ../kernel_module-1.0/'
-    "
-    ;;
-esac
+else
+  case "$arch" in
+    x86_64)
+      # http://stackoverflow.com/questions/11408041/how-to-debug-the-linux-kernel-with-gdb-and-qemu/33203642#33203642
+      # http://stackoverflow.com/questions/4943857/linux-kernel-live-debugging-how-its-done-and-what-tools-are-used/42316607#42316607
+      # http://stackoverflow.com/questions/28607538/how-to-debug-linux-kernel-modules-with-qemu/44095831#44095831
+      cmd="$gdb \
+        -q \
+        -ex 'add-auto-load-safe-path $(pwd)' \
+        -ex 'file vmlinux' \
+        -ex 'set arch i386:x86-64:intel' \
+        -ex 'target remote localhost:1234' \
+        $brk \
+        -ex 'continue' \
+        -ex 'disconnect' \
+        -ex 'set arch i386:x86-64' \
+        -ex 'target remote localhost:1234' \
+        -ex 'lx-symbols ../kernel_module-1.0/'
+      "
+      ;;
+    arm)
+      cmd="$gdb \
+        -q \
+        -ex 'add-auto-load-safe-path $(pwd)' \
+        -ex 'file vmlinux' \
+        -ex 'target remote localhost:1234' \
+        -ex 'lx-symbols ../kernel_module-1.0/'
+      "
+      ;;
+  esac
+fi
 eval "$cmd"