Skip site navigation (1)Skip section navigation (2)
Date:      Sun, 23 Jul 2006 21:24:39 -0700
From:      Julian Elischer <julian@elischer.org>
To:        Divacky Roman <xdivac02@stud.fit.vutbr.cz>
Cc:        hackers@freebsd.org
Subject:   Re: i386 registers during a syscall
Message-ID:  <44C44B87.8070100@elischer.org>
In-Reply-To: <20060723112332.GA83581@stud.fit.vutbr.cz>
References:  <20060723112332.GA83581@stud.fit.vutbr.cz>

next in thread | previous in thread | raw e-mail | index | archive | help
Divacky Roman wrote:

>hi,
>
>I need to get content of %esi register as it was during a syscall. Should I get
>this info from td->td_pcb->pcb_esi or td->td_frame->tf_esi?
>
>Is it so that trapframe is "content of registers when entering a kernel" and
>pcb is "when leaving a kernel" ?
>  
>

pcb is when the process is sleeping or otherwise suspended.
frame is when enterring the kernel, and reloaded when leaving the kernel

>thnx for info
>
>roman
>
>
>----------------------
>www.liberalnistrana.cz
>_______________________________________________
>freebsd-hackers@freebsd.org mailing list
>http://lists.freebsd.org/mailman/listinfo/freebsd-hackers
>To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org"
>  
>



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?44C44B87.8070100>