diff options
| -rw-r--r-- | sys/cddl/dev/dtrace/aarch64/dtrace_isa.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/sys/cddl/dev/dtrace/aarch64/dtrace_isa.c b/sys/cddl/dev/dtrace/aarch64/dtrace_isa.c index ff0e068006bd..037d4734659e 100644 --- a/sys/cddl/dev/dtrace/aarch64/dtrace_isa.c +++ b/sys/cddl/dev/dtrace/aarch64/dtrace_isa.c @@ -228,10 +228,22 @@ zero: int dtrace_getustackdepth(void) { + proc_t *p = curproc; + struct trapframe *tf; + uintptr_t pc, fp; + int n = 0; - printf("IMPLEMENT ME: %s\n", __func__); + if (p == NULL || (tf = curthread->td_frame) == NULL) + return (0); + + if (DTRACE_CPUFLAG_ISSET(CPU_DTRACE_FAULT)) + return (-1); + + pc = tf->tf_elr; + fp = tf->tf_x[29]; + n += dtrace_getustack_common(NULL, 0, pc, fp); - return (0); + return (n); } void |