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dd11f11fae
parent handle. * dcrt0.cc (_dll_crt0): Close parent's parent handle when spawned or forked. * debug.cc (add_handle): Correct erroneous reference to handle structure when printing warning. * exceptions.cc (interrupt_now): Always return 1. (interrupt_on_return): Accept a sigthread argument. Check to see if this argument has been trashed prior to setting up the stack return. (call_handler): Add a loop around attempts to dispatch signals to detect case where interrupt_on_return fails. (_sigdelayed): Set up a temporary frame pointer prior to calling stuff that could trigger an interrupt or the stack walking code will be very confused. * fork.cc (fork_parent): Move a lot of the setup of the child process into proc_subproc. * spawn.cc (spawn_guts): Ditto. Use ppid_handle to contact logical parent when reparenting. * pinfo.h (_pinfo): Remember the logical handle of the parent process. * sigproc.cc (proc_subproc): Record most stuff necessary for the _pinfo structure that is inferrable from myself when adding children. (wait_sig): Always set 'pending_signals' flag when about to kick off the signal scanning loop. Reset it only if there are no pending signals.