Dumping a core from inside of process

[Artem 'Zazoobr' Ignatjev]

At Thu, 21.08.2003, 22:05, Lev Walkin wrote:
> Artem 'Zazoobr' Ignatjev wrote:
> > Hello, hackers
> > 
> > I'm writing some program, which dlopens() a lot of shared objects, and
> > can do nasty things to it's own memory. Some day I decided to trap fatal
> > memory signals, like SIGILL, SIGBUS and SIGSEGV, and wrote a handler for
> > these, which swears with bad words into syslog, dlcloses() all that
> > objects, and quits. 
> 
> What if a handler dlcloses() something which is already in process of
> dlclosing() at the time the handler fires?
No, that's the only place (except normal shutdown sequence) where the
object can be dlcosed()
> 
> > But today I found that it's very useful - to have coredump handy, since
> > its eases debug a lot. What is the (correct) way to make a coredump of
> > your own memory (and, it'll be nice to have all that stack frames and
> > registers written as they were when the signal did occured, not what
> > they were when we are already in signal handler)
> 
> man 3 abort
thanks, I'll take a look
-- 
Artem 'Zazoobr' Ignatjev <timon at memphis.mephi.ru>