diff options
| -rw-r--r-- | sys/ia64/ia64/ptrace_machdep.c | 19 |
1 files changed, 7 insertions, 12 deletions
diff --git a/sys/ia64/ia64/ptrace_machdep.c b/sys/ia64/ia64/ptrace_machdep.c index 90c17c6..0f269e2 100644 --- a/sys/ia64/ia64/ptrace_machdep.c +++ b/sys/ia64/ia64/ptrace_machdep.c @@ -40,26 +40,21 @@ cpu_ptrace(struct thread *td, int req, void *addr, int data) uint64_t *kstack; int error; - error = 0; + error = EINVAL; + tf = td->td_frame; + switch (req) { case PT_GETKSTACK: - tf = td->td_frame; - if (data >= 0 && (data << 3) < tf->tf_special.ndirty) { + if (data >= 0 && data < (tf->tf_special.ndirty >> 3)) { kstack = (uint64_t*)td->td_kstack; error = copyout(kstack + data, addr, 8); - } else - error = EINVAL; + } break; case PT_SETKSTACK: - tf = td->td_frame; - if (data >= 0 && (data << 3) < tf->tf_special.ndirty) { + if (data >= 0 && data < (tf->tf_special.ndirty >> 3)) { kstack = (uint64_t*)td->td_kstack; error = copyin(addr, kstack + data, 8); - } else - error = EINVAL; - break; - default: - error = EINVAL; + } break; } |
