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How and When a frame is constructed
- From: kceiwH <kceiwh at gmail dot com>
- To: gdb at sourceware dot org
- Date: Wed, 5 Aug 2009 09:44:52 -0400
- Subject: How and When a frame is constructed
Hi,
When I read GDB source codes, I don't understand how a frame is
constructed, and when.
As far as I know, get_current_frame is used to get a current frame.
When current_frame is NULL, it will construct a sentinel_frame and
unwind it to get current_frame. But I don't know where current_frame
will be updated except get_current_frame. The
I also guess that the frame stack will be updated when the inferior is
running, stepped. But I still don't find the code to update the frame
stack.
I'm wondering when the first frame is constructed and pushed to frame
stack and how to push to and pop from frame stack.
Thanks in advance.
Best Wishes,
Mao