cortex_m: set the debug reason to DBGRQ when NVIC_DFSR indicates EXTERNAL

[openocd.git] / src / target / cortex_m.c

diff --git a/src/target/cortex_m.c b/src/target/cortex_m.c
index fba832c78737200c5e0e0179ee84564d7fe2c6a5..ce3ab09c01928b90434af3057573992e21442348 100644 (file)
--- a/src/target/cortex_m.c
+++ b/src/target/cortex_m.c
@@ -392,7 +392,9 @@ static int cortex_m_examine_debug_reason(struct target *target)
                        target->debug_reason = DBG_REASON_WATCHPOINT;
                else if (cortex_m->nvic_dfsr & DFSR_VCATCH)
                        target->debug_reason = DBG_REASON_BREAKPOINT;
                        target->debug_reason = DBG_REASON_WATCHPOINT;
                else if (cortex_m->nvic_dfsr & DFSR_VCATCH)
                        target->debug_reason = DBG_REASON_BREAKPOINT;

-               else    /* EXTERNAL, HALTED */
+               else if (cortex_m->nvic_dfsr & DFSR_EXTERNAL)
+                       target->debug_reason = DBG_REASON_DBGRQ;
+               else    /* HALTED */

                        target->debug_reason = DBG_REASON_UNDEFINED;
        }
 
                        target->debug_reason = DBG_REASON_UNDEFINED;
        }