svn commit: r331967 - head/sys/arm64/arm64

[Oleksandr Tymoshenko]

Author: gonzo
Date: Wed Apr  4 01:13:28 2018
New Revision: 331967
URL: https://svnweb.freebsd.org/changeset/base/331967

Log:
  Fix arm64 buildkernel target with "nooptions KDB"
  
  Make kdb_trap in breakpoint exception handler conditional. If "options KDB"
  is not present just panic with message that debugger is not enabled.
  
  PR:		224653

Modified:
  head/sys/arm64/arm64/trap.c

Modified: head/sys/arm64/arm64/trap.c
==============================================================================
--- head/sys/arm64/arm64/trap.c	Tue Apr  3 23:49:35 2018	(r331966)
+++ head/sys/arm64/arm64/trap.c	Wed Apr  4 01:13:28 2018	(r331967)
@@ -323,8 +323,12 @@ do_el1h_sync(struct thread *td, struct trapframe *fram
 			break;
 		}
 #endif
+#ifdef KDB
 		kdb_trap(exception, 0,
 		    (td->td_frame != NULL) ? td->td_frame : frame);
+#else
+		panic("No debugger in kernel.\n");
+#endif
 		frame->tf_elr += 4;
 		break;
 	case EXCP_WATCHPT_EL1: