Date: Wed, 11 Mar 1998 00:43:25 +0100 From: Tor Egge <Tor.Egge@idi.ntnu.no> To: ken@plutotech.com Cc: current@FreeBSD.ORG, dyson@FreeBSD.ORG Subject: Re: problems stripping kernels Message-ID: <199803102343.AAA09003@pat.idi.ntnu.no> In-Reply-To: Your message of "Tue, 10 Mar 1998 11:01:23 -0700 (MST)" References: <199803101801.LAA15498@panzer.plutotech.com>
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> Howdy,
>
> I've noticed a problem stripping kernels since John's changes on
> Saturday went in. (and it wasn't fixed by version 1.46 of ufs_readwrite.c
> yesterday)
>
The following patch worked for me as a workaround. As long as
msync()/munmap() is performed before ftruncate(), there is no
problems with regard to what is 'legal' values for the size fields.
Index: strip.c
===================================================================
RCS file: /home/ncvs/src/usr.bin/strip/strip.c,v
retrieving revision 1.11
diff -u -r1.11 strip.c
--- strip.c 1997/08/12 06:44:57 1.11
+++ strip.c 1998/03/09 22:35:26
@@ -250,12 +250,13 @@
*/
bcopy(nstrbase, (void *)nsym, len);
+ msync((caddr_t) ep, (size_t)sb.st_size, MS_SYNC);
+ munmap((caddr_t)ep, (size_t)sb.st_size);
/* Truncate to the current length. */
if (ftruncate(fd, (char *)nsym + len - (char *)ep)) {
warn("%s", fn);
err_val = 1;
}
- munmap((caddr_t)ep, (size_t)sb.st_size);
}
static void
- Tor Egge
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