Date: Sun, 16 Sep 2001 11:24:54 -0700 From: Julian Elischer <julian@elischer.org> To: Marcel Moolenaar <marcel@xcllnt.net> Cc: current@FreeBSD.org Subject: Re: gdb(1) broken? Message-ID: <3BA4EE76.2AED07FA@elischer.org> References: <20010916101828.B455@dhcp01.pn.xcllnt.net>
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Marcel Moolenaar wrote:
>
> Gang,
>
> I don't know exactly what the gdb(1) problems on Alpha are, but we
> do have a problem that's probably not specific to an architecture.
>
> The problem is basicly this: one cannot debug any programs because
> gdb(1) gets a SIGTRAP delivered when it invokes ptrace(2) and never
> gets a change to wait4(2) the "interior" process.
>
> I don't know the details, but one of the following can be the case
> 1. We now deliver a SIGTRAP, when we didn't do so before,
> 2. The SIGTRAP comes too quick, it should be "caught" by the wait4(2).
>
> I couldn't find any indication that 1 happened, so my guess is that
> we suffer from 2.
>
> Is this known?
> Any thoughts?
peter has been working on this...
It's because the process structure and u-area have changed entirely.
>
> --
> Marcel Moolenaar USPA: A-39004 marcel@xcllnt.net
>
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