Date: Wed, 22 Jan 2014 22:25:48 +0000 (UTC) From: Warner Losh <imp@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r261043 - head/sys/conf Message-ID: <201401222225.s0MMPm4I094499@svn.freebsd.org>
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Author: imp Date: Wed Jan 22 22:25:48 2014 New Revision: 261043 URL: http://svnweb.freebsd.org/changeset/base/261043 Log: Document EARLY_PRINTF Modified: head/sys/conf/NOTES Modified: head/sys/conf/NOTES ============================================================================== --- head/sys/conf/NOTES Wed Jan 22 22:19:53 2014 (r261042) +++ head/sys/conf/NOTES Wed Jan 22 22:25:48 2014 (r261043) @@ -446,6 +446,15 @@ options DEBUG_MEMGUARD options DEBUG_REDZONE # +# EARLY_PRINTF enables support for calling a special printf (eprintf) +# very early in the kernel (before cn_init() has been called). This +# should only be used for debugging purposes early in boot. Normally, +# it is not defined. It is commented out here because this feature +# isn't generally available. And the required eputc() isn't defined. +# +#options EARLY_PRINTF + +# # KTRACE enables the system-call tracing facility ktrace(2). To be more # SMP-friendly, KTRACE uses a worker thread to process most trace events # asynchronously to the thread generating the event. This requires a
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