[PATCH v2 1/2] automation: Change build script to use arch defconfig

[Shawn Anastasio <sanastasio@xxxxxxxxxxxxxxxxxxxxx>]

Change automation build script to call the make defconfig target before
setting CONFIG_DEBUG and extra options. This fixes issues on Power where
the build fails without using the ppc64_defconfig.

Reported-by: Jan Beulich <jbeulich@xxxxxxxx>
Signed-off-by: Shawn Anastasio <sanastasio@xxxxxxxxxxxxxxxxxxxxx>
---
v2: No changes.

 automation/scripts/build | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/automation/scripts/build b/automation/scripts/build
index b4edcf010e..19dd9e8270 100755
--- a/automation/scripts/build
+++ b/automation/scripts/build
@@ -22,7 +22,12 @@ if [[ "${RANDCONFIG}" == "y" ]]; then
     # RANDCONFIG implies HYPERVISOR_ONLY
     HYPERVISOR_ONLY="y"
 else
-    echo "CONFIG_DEBUG=${debug}" > xen/.config
+    # Start off with arch's defconfig
+    make -C xen defconfig
+
+    # Drop existing CONFIG_DEBUG and replace with value of ${debug}
+    sed -i 's/^CONFIG_DEBUG=[yn]//g' xen/.config
+    echo "CONFIG_DEBUG=${debug}" >> xen/.config

     if [[ -n "${EXTRA_XEN_CONFIG}" ]]; then
         echo "${EXTRA_XEN_CONFIG}" >> xen/.config
--
2.30.2