* frame.c (frame_pop): Check to see whether there's a frame to
which we can pop first.
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@ -1,3 +1,8 @@
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2007-03-13 Nathan Froyd <froydnj@codesourcery.com>
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* frame.c (frame_pop): Check to see whether there's a frame to
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which we can pop first.
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2007-03-13 Nathan Froyd <froydnj@codesourcery.com>
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2007-03-13 Nathan Froyd <froydnj@codesourcery.com>
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* MAINTAINERS (Write After Approval): Add myself.
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* MAINTAINERS (Write After Approval): Add myself.
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15
gdb/frame.c
15
gdb/frame.c
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@ -514,13 +514,22 @@ frame_save_as_regcache (struct frame_info *this_frame)
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void
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void
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frame_pop (struct frame_info *this_frame)
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frame_pop (struct frame_info *this_frame)
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{
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{
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struct frame_info *prev_frame;
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struct regcache *scratch;
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struct cleanup *cleanups;
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/* Ensure that we have a frame to pop to. */
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prev_frame = get_prev_frame_1 (this_frame);
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if (!prev_frame)
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error (_("Cannot pop the initial frame."));
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/* Make a copy of all the register values unwound from this frame.
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/* Make a copy of all the register values unwound from this frame.
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Save them in a scratch buffer so that there isn't a race between
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Save them in a scratch buffer so that there isn't a race between
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trying to extract the old values from the current_regcache while
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trying to extract the old values from the current_regcache while
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at the same time writing new values into that same cache. */
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at the same time writing new values into that same cache. */
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struct regcache *scratch
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scratch = frame_save_as_regcache (prev_frame);
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= frame_save_as_regcache (get_prev_frame_1 (this_frame));
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cleanups = make_cleanup_regcache_xfree (scratch);
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struct cleanup *cleanups = make_cleanup_regcache_xfree (scratch);
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/* FIXME: cagney/2003-03-16: It should be possible to tell the
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/* FIXME: cagney/2003-03-16: It should be possible to tell the
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target's register cache that it is about to be hit with a burst
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target's register cache that it is about to be hit with a burst
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