Date: Mon, 10 Jul 2000 14:10:04 -0700 (PDT) From: Ben Smithurst <ben@FreeBSD.org> To: freebsd-doc@freebsd.org Subject: Re: docs/19648: handbook mentions stripping kernel.debug, but this is done for you Message-ID: <200007102110.OAA06164@freefall.freebsd.org>
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The following reply was made to PR docs/19648; it has been noted by GNATS.
From: Ben Smithurst <ben@FreeBSD.org>
To: jblaine@mitre.org
Cc: freebsd-gnats-submit@FreeBSD.org
Subject: Re: docs/19648: handbook mentions stripping kernel.debug, but this is done for you
Date: Mon, 10 Jul 2000 21:21:54 +0100
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jblaine@mitre.org wrote:
> Remove the following paragraph from the appropriate handbook section:
>
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> When the kernel has been built make a copy of it, say kernel.debug,
> and then run strip -g on the original. Install the original as
> normal. You may also install the unstripped kernel, but symbol table
> lookup time for some programs will drastically increase, and since the
> whole kernel is loaded entirely at boot time and cannot be swapped out
> later, several megabytes of physical memory will be wasted.
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Then people with FreeBSD 3.x or earlier will lose that advice... How
about something like this instead:
--- chapter.sgml 2000/06/14 00:47:36 1.24
+++ chapter.sgml 2000/07/10 20:19:07
@@ -48,7 +48,10 @@
releases.</para>
</note>
=20
- <para>When the kernel has been built make a copy of it, say
+ <para>If you are using any version of FreeBSD older than 4.0-RELEASE,
+ you should install a stripped copy of the kernel, rather than the
+ significantly larger debug copy.
+ When the kernel has been built, make a copy of it, say
<filename>kernel.debug</filename>, and then run <command>strip
-g</command> on the original. Install the original as normal. You
may also install the unstripped kernel, but symbol table lookup time=
for
Is the bit about wasting space still even true? I thought with ELF this
situation had improved a bit. Anyone know?
--=20
Ben Smithurst / ben@FreeBSD.org / PGP: 0x99392F7D
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