diff options
Diffstat (limited to 'gdb/frame-unwind.h')
| -rw-r--r-- | gdb/frame-unwind.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gdb/frame-unwind.h b/gdb/frame-unwind.h index c80ddc8..25a601c 100644 --- a/gdb/frame-unwind.h +++ b/gdb/frame-unwind.h @@ -133,6 +133,9 @@ typedef void (frame_this_id_ftype) (struct frame_info *this_frame, may be a lazy reference to memory, a lazy reference to the value of a register in THIS frame, or a non-lvalue. + If the previous frame's register was not saved by THIS_FRAME and is + therefore undefined, return a not_lval wholly optimized-out value. + THIS_PROLOGUE_CACHE can be used to share any prolog analysis data with the other unwind methods. Memory for that cache should be allocated using FRAME_OBSTACK_ZALLOC(). */ |