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-rw-r--r--gdb/frame.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/gdb/frame.h b/gdb/frame.h
index ee0fc7e49b1..402c6f5e0d7 100644
--- a/gdb/frame.h
+++ b/gdb/frame.h
@@ -410,8 +410,10 @@ struct frame_info
CORE_ADDR pc_unwind_cache;
/* This frame's ID. Note that the frame's ID, base and PC contain
- redundant information. */
+ redundant information. If id_p is non-zero, the ID is assumed
+ to be valid. */
struct frame_id id;
+ int id_p;
/* Pointers to the next (down, inner, younger) and previous (up,
outer, older) frame_info's in the frame cache. */