make test: fix DEBUG=core error

Change-Id: I703b2866a1607d6a2fad215e90b5cf2d7afdfd0d
Signed-off-by: Klement Sekera <ksekera@cisco.com>
diff --git a/test/Makefile b/test/Makefile
index 00d7040..f8da350 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -19,6 +19,8 @@
 FORCE_FOREGROUND=1
 else ifeq ($(DEBUG),gdbserver)
 FORCE_FOREGROUND=1
+else ifeq ($(DEBUG),core)
+FORCE_FOREGROUND=1
 else
 FORCE_FOREGROUND=0
 endif
diff --git a/test/hook.py b/test/hook.py
index f34e0c5..77a2fc5 100644
--- a/test/hook.py
+++ b/test/hook.py
@@ -62,7 +62,7 @@
 
     def on_crash(self, core_path):
         if self.testcase.debug_core:
-            if not spawn_gdb(self.testcase.vpp_bin, core_path):
+            if not spawn_gdb(self.testcase.vpp_bin, core_path, self.logger):
                 self.logger.error(
                     "Debugger '%s' does not exist or is not an executable.." %
                     gdb_path)