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Re: [RFA] Don't reset watchpoint block on solib load.
Vladimir Prus <vladimir at codesourcery.com> writes:
> On Wednesday 28 November 2007 02:00:15 Jim Blandy wrote:
>
>> We also call breakpoint_re_set_one when we've unloaded a shared
>> library.
>
> Can you point me at a codepath that would cause breakpoint_re_set_one
> to be called when a shared library is *unloaded*? I've poked at
> this for a while, and can't see it.
I beg your pardon. It does not. This is a pretty serious bug. A
dlclose will call free_objfile:
handle_inferior_event
-> solib_add
-> update_solib_list
-> free_objfile
but it takes no steps to clear references to the freed shared
library's symbols. I had assumed that it must be calling
clear_symtab_users. We need to call clear_symtab_users whenever any
objfile is freed.
Now, where to do this...