2002-11-29 Andrew Cagney <ac131313@redhat.com>
* frame.h (get_selected_block): Add comments.
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2002-11-29 Andrew Cagney <ac131313@redhat.com>
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* frame.h (get_selected_block): Add comments.
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2002-11-28 Andrew Cagney <ac131313@redhat.com>
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* frame.c (pc_notcurrent): New function.
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26
gdb/frame.h
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gdb/frame.h
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@ -442,6 +442,32 @@ extern void get_frame_saved_regs (struct frame_info *,
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extern struct block *get_frame_block (struct frame_info *,
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CORE_ADDR *addr_in_block);
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/* Return the `struct block' that belongs to the selected thread's
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selected frame. If the inferior has no state, return NULL.
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NOTE: cagney/2002-11-29:
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No state? Does the inferior have any execution state (a core file
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does, an executable does not). At present the code tests
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`target_has_stack' but I'm left wondering if it should test
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`target_has_registers' or, even, a merged target_has_state.
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Should it look at the most recently specified SAL? If the target
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has no state, should this function try to extract a block from the
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most recently selected SAL? That way `list foo' would give it some
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sort of reference point. Then again, perhaphs that would confuse
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things.
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Calls to this function can be broken down into two categories: Code
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that uses the selected block as an additional, but optional, data
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point; Code that uses the selected block as a prop, when it should
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have the relevant frame/block/pc explicitly passed in.
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The latter can be eliminated by correctly parameterizing the code,
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the former though is more interesting. Per the "address" command,
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it occures in the CLI code and makes it possible for commands to
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work, even when the inferior has no state. */
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extern struct block *get_selected_block (CORE_ADDR *addr_in_block);
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extern struct symbol *get_frame_function (struct frame_info *);
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