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| author | Andrew Cagney <cagney@redhat.com> | 2002-11-09 18:14:10 +0000 |
|---|---|---|
| committer | Andrew Cagney <cagney@redhat.com> | 2002-11-09 18:14:10 +0000 |
| commit | 15220c65c0b9ebd38aebfc5d707040b7f37ed2db (patch) | |
| tree | a849c0a63c294afde6a3c15551dd9d14efe93cff /gdb/frame.c | |
| parent | 95adb866d747a0c2c01a9369b55e4a26554e4597 (diff) | |
| download | gdb-15220c65c0b9ebd38aebfc5d707040b7f37ed2db.zip gdb-15220c65c0b9ebd38aebfc5d707040b7f37ed2db.tar.gz gdb-15220c65c0b9ebd38aebfc5d707040b7f37ed2db.tar.bz2 | |
2002-11-09 Andrew Cagney <ac131313@redhat.com>
* frame.c (get_prev_frame): Test prev_p to identify a previously
unwound frame. Initialize prev_p.
* frame.h (struct frame_info): Add field prev_p. Expand prev/next
comment.
Diffstat (limited to 'gdb/frame.c')
| -rw-r--r-- | gdb/frame.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/gdb/frame.c b/gdb/frame.c index 8631584..bfefc77 100644 --- a/gdb/frame.c +++ b/gdb/frame.c @@ -742,13 +742,10 @@ get_prev_frame (struct frame_info *next_frame) return current_frame; } - /* If we have the prev one, return it. */ - if (next_frame->prev) - /* FIXME: cagney/2002-11-09: Rather than relying on ->PREV being - non-NULL, there should be a predicate (->prev_p?). That would - stop this function constantly trying to chain beyond the - outermost frame. */ + /* Only try to do the unwind once. */ + if (next_frame->prev_p) return next_frame->prev; + next_frame->prev_p = 1; /* On some machines it is possible to call a function without setting up a stack frame for it. On these machines, we |