From: Eduardo Pereira Habkost <ehabkost@conectiva.com.br>
To: linux-8086@vger.kernel.org
Subject: Re: Mess over open(
Date: Tue, 20 Jul 2004 12:28:11 -0300 [thread overview]
Message-ID: <20040720152811.GF6069@duckman.distro.conectiva> (raw)
In-Reply-To: <20040720021951.99294.qmail@web51303.mail.yahoo.com>
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You have made exactly the same question about the "execve" sytem call,
some weeks ago. 8)
System calls are not linked magically using their names, but we should
have a system call interface that makes libc notify the kernel that some
syscall should be called. Take a look at arch/i86/kernel/syscall.dat,
mkentry.sh and the entry.c (it is generated by mkentry.sh), if you want
to know how it works.
If you are looking for the system calls' implementations, look at
sys_execve, sys_open, sys_fork, and others sys_* functions.
On Mon, Jul 19, 2004 at 07:19:51PM -0700, Tommy McCabe wrote:
> Although the open( call seems to be used everywhere
> (in around 70 source code files), it isn't defined
> anywhere. How can ELKS get past booting if a call
> isn't defined?
>
--
Eduardo
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prev parent reply other threads:[~2004-07-20 15:28 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-20 2:19 Mess over open( Tommy McCabe
2004-07-20 9:30 ` David Given
2004-07-20 15:28 ` Eduardo Pereira Habkost [this message]
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