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Date: Tue, 13 Aug 2002 10:55:25 -0700 (PDT)
From: "Randy.Dunlap" <rddunlap@osdl.org>
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To: "H. Peter Anvin" <hpa@zytor.com>
cc: <linux-kernel@vger.kernel.org>
Subject: Re: klibc and logging
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On 13 Aug 2002, H. Peter Anvin wrote:

| > H. Peter Anvin <hpa@zytor.com> wrote:
| > >However, I'm wondering what to do about logging.  Kernel log messages
| > >get stored away until klogd gets started, but early userspace may need
| > >some way to log messages -- and syslog is obviously not running.  The
| > >easiest way to do this would probably be to be able to write to
| > >/proc/kmsg (which probably really should be /dev/kmsg) and push messages
| > >onto the kernel's message queue; but we could also have a dedicated
| > >location in the initramfs for writing logs, and do it all in userspace.
|
| Andrew Morton sent me a proposed patch last night which adds a klogctl
| (a.k.a. sys_syslog) which does a printk() from userspace.  It was less
| than 10 lines; i.e. probably worth it.  I have hooked this up to
| syslog(3) in klibc, although the code is not checked in yet.

Hey, that's the same idea as my "how to add a syscall" example!!
  http://www.xenotime.net/linux/syscall_ex/addasyscall-2418.patch

-- 
~Randy

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