diff options
| -rw-r--r-- | sys/kern/kern_shutdown.c | 14 | ||||
| -rw-r--r-- | sys/sys/systm.h | 1 |
2 files changed, 15 insertions, 0 deletions
diff --git a/sys/kern/kern_shutdown.c b/sys/kern/kern_shutdown.c index 1867b8a..d63ece6 100644 --- a/sys/kern/kern_shutdown.c +++ b/sys/kern/kern_shutdown.c @@ -438,6 +438,20 @@ shutdown_reset(void *junk, int howto) /* NOTREACHED */ /* assuming reset worked */ } +/* + * Print a backtrace if we can. + */ + +void +backtrace(void) +{ +#ifdef DDB + db_print_backtrace(); +#else + printf("Sorry, need DDB option to print backtrace"); +#endif +} + #ifdef SMP static u_int panic_cpu = NOCPU; #endif diff --git a/sys/sys/systm.h b/sys/sys/systm.h index e3b3a2a..1126762 100644 --- a/sys/sys/systm.h +++ b/sys/sys/systm.h @@ -135,6 +135,7 @@ void panic(const char *, ...) __printflike(1, 2); void panic(const char *, ...) __dead2 __printflike(1, 2); #endif +void backtrace(void); void cpu_boot(int); void cpu_rootconf(void); extern uint32_t crc32_tab[]; |
