Date: Wed, 17 Sep 2008 11:36:24 -0400 From: John Baldwin <jhb@freebsd.org> To: freebsd-hackers@freebsd.org Cc: "Andrew N. Below" <defan@zenon.net> Subject: Re: amd64, COMPAT_IA32 & syscall diverts Message-ID: <200809171136.24300.jhb@freebsd.org> In-Reply-To: <046601c918cc$786cc8c0$970da8c0@jam.zenon.net> References: <046601c918cc$786cc8c0$970da8c0@jam.zenon.net>
next in thread | previous in thread | raw e-mail | index | archive | help
On Wednesday 17 September 2008 09:51:22 am Andrew N. Below wrote: > Hi all. > > We have loadable kernel module with > several syscall intercepting functions > (e.g., sysent[SYS___sysctl].sy_call). > Earlier, this module was built and used > on i386 platform, now we have to run it > on amd64. For some reasons we have to > enable COMPAT_IA32 option in kernel. > > Our syscall wrapper sucessfully receiving > syscalls from amd64 binaries, but we have > nothing from old i386 binaries. > > Seems like these calls are made bypassing > our kernel module. > > Is there any way to handle them? > > OS is freebsd 6.3-stable. You have to patch the sysent[] array in the compat/freebsd. There currently isn't a really clean way of doing this (and there really should be). -- John Baldwin
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200809171136.24300.jhb>