Date: Fri, 9 Jun 2000 08:16:07 -0400 (EDT) From: Luoqi Chen <luoqi@watermarkgroup.com> To: dfr@nlsystems.com, dillon@apollo.backplane.com Cc: arch@FreeBSD.ORG Subject: Re: Syscalls and execve Message-ID: <200006091216.e59CG7I07757@lor.watermarkgroup.com>
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> Why not have the new exec()'d process, when it gets the cpu in supervisor > mode, clear the registers in supervisor mode before returning > to user mode? e.g. near the end of kern/kern_exec.c's execve(). > (or somewhere similar). Then at least the 'garbage' will be more > like what you see on return from a syscall rather then something > inherited from another process. > Here the current process *is* the process calling exec() (unlike fork()), so why not just zero those registers in setregs()? -lq To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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