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 > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-current" in the body of the message -- +------------------------------------+ ______ _ __ | __--_|\ Julian Elischer | \ U \/ / hard at work in | / \ julian@elischer.org +------>x USA \ a very strange | ( OZ ) \___ ___ | country ! +- X_.---._/ presently in San Francisco \_/ \\ v To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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