diff options
Diffstat (limited to 'gdb/frame.c')
| -rw-r--r-- | gdb/frame.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/gdb/frame.c b/gdb/frame.c index a817e4d..7a35192 100644 --- a/gdb/frame.c +++ b/gdb/frame.c @@ -912,6 +912,12 @@ frame_unwind_register (struct frame_info *frame, int regnum, gdb_byte *buf) frame_register_unwind (frame, regnum, &optimized, &unavailable, &lval, &addr, &realnum, buf); + + if (optimized) + error (_("Register %d was optimized out"), regnum); + if (unavailable) + throw_error (NOT_AVAILABLE_ERROR, + _("Register %d is not available"), regnum); } void @@ -1607,6 +1613,15 @@ get_prev_frame_1 (struct frame_info *this_frame) if (get_frame_type (this_frame) == INLINE_FRAME) return get_prev_frame_raw (this_frame); + /* Check that this frame is unwindable. If it isn't, don't try to + unwind to the prev frame. */ + this_frame->stop_reason + = this_frame->unwind->stop_reason (this_frame, + &this_frame->prologue_cache); + + if (this_frame->stop_reason != UNWIND_NO_REASON) + return NULL; + /* Check that this frame's ID was valid. If it wasn't, don't try to unwind to the prev frame. Be careful to not apply this test to the sentinel frame. */ @@ -2333,6 +2348,9 @@ frame_stop_reason_string (enum unwind_stop_reason reason) case UNWIND_NULL_ID: return _("unwinder did not report frame ID"); + case UNWIND_UNAVAILABLE: + return _("Not enough registers or memory available to unwind further"); + case UNWIND_INNER_ID: return _("previous frame inner to this frame (corrupt stack?)"); |