From: Carlos O'Donell <carlos@baldric.uwo.ca>
To: Christophe Rhodes <csr21@cam.ac.uk>
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] mcontext registers on parisc64
Date: Tue, 20 Aug 2002 09:22:13 -0400 [thread overview]
Message-ID: <20020820132213.GA4865@systemhalted> (raw)
In-Reply-To: <20020820114935.GA27316@cam.ac.uk>
>
> Inspecting the sigcontext that I get on a parisc64 machine gives
> register contents looking a bit like
> [...]
> 0xffffffff, 0xdeadbeef, 0x0, 0xf00d, 0x0, 0xfaf00380, 0x0, 0x2097a, 0x0,
> 0xfaf001a4, 0x0, 0x2096a, 0x0, 0x1, 0x0, 0x20972, 0x0, 0x1, 0x0, 0x0, 0x0,
> [...]
>
> and the alternation of data, 0/-1 is what leads me to believe that
> 64-bit quantities are being delivered; userland only seems to know about
> 32-bits, though.
>
> Please don't hesitate to get back to me with comments and/or criticisms,
>
> Cheers,
> Christophe
This might be a kernel bug. We should always return 32-bit quantities to
userspace (until we get a 64-bit userspace :).
Once we straighten out the sigcontext->mcontext_t issue in glibc, we can
take a look at this. I might just patch glibc on my box tonight... and go
forward with hacking on the kernel bits.
c.
prev parent reply other threads:[~2002-08-20 13:24 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-17 22:05 [parisc-linux] subo -> overflow_trap (12) -> What to do? Carlos O'Donell
2002-08-20 11:49 ` [parisc-linux] mcontext registers on parisc64 (was Re: subo -> overflow_trap (12) -> What to do?) Christophe Rhodes
2002-08-20 13:22 ` Carlos O'Donell [this message]
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