Date: Mon, 21 Oct 1996 01:02:22 +1000 (EST) From: Douglas Thomas Crosher <dtc@scrooge.ee.swin.oz.au> To: msmith@atrad.adelaide.edu.au (Michael Smith) Cc: freebsd-current@freebsd.org Subject: Re: kern/1848: breakpoints in shared libraries don't fire Message-ID: <199610201502.BAA17461@scrooge.ee.swin.oz.au> In-Reply-To: <199610201432.AAA01800@genesis.atrad.adelaide.edu.au> from "Michael Smith" at Oct 21, 96 00:02:49 am
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> > > It's possible to set breakpoints in shared libraries, but > > > executing the code doesn't cause a SIGTRACE. > > Setting a breakpoint in a shared library would be Bad, as you don't > have any way of telling who else it is shared with. I suspect that > the attempt to set the trace is silently failing. What about pages mmapped MAP_PRIVATE, couldn't the page be copied for private use when the breakpoint is set? Regards Douglas Crosher
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