Date: Wed, 15 Dec 2004 17:10:29 +0200 From: Andrey Simonenko <simon@comsys.ntu-kpi.kiev.ua> To: Ravi Krishna <ravikrish@gmail.com> Cc: freebsd-hackers@freebsd.org Subject: Re: FreeBSD system call implementation Message-ID: <20041215151029.GA2832@pm514-9.comsys.ntu-kpi.kiev.ua> In-Reply-To: <6669fd8604121506494c5afe65@mail.gmail.com> References: <6669fd8604121506494c5afe65@mail.gmail.com>
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On Wed, Dec 15, 2004 at 08:19:05PM +0530, Ravi Krishna wrote: > My question is why we store the p->p_sysent->sv_table > for each process. What is the reason for keeping this per process? > Are there some situations where two processes can have different system calls > available? Processes can have different p_sysent, because the kernel supports different ABIs. sv_entry (pointer to some system call table) is only one part, read comments in sys/sysent.h file for sysentvec structure.
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