Date: Sun, 11 Mar 2001 20:40:00 -0600 From: Larry Rosenman <ler@lerctr.org> To: Kris Kennaway <kris@obsecurity.org> Cc: stable@FreeBSD.ORG, qa@FreeBSD.ORG Subject: Re: cputype=486 Message-ID: <20010311204000.A9671@lerami.lerctr.org> In-Reply-To: <20010311201658.A8487@lerami.lerctr.org>; from ler@lerctr.org on Sun, Mar 11, 2001 at 08:16:58PM -0600 References: <20010311120241.A15202@lerami.lerctr.org> <20010311145945.C66872@mollari.cthul.hu> <20010311193126.A6166@lerami.lerctr.org> <20010311175148.A82406@mollari.cthul.hu> <20010311195843.A7539@lerami.lerctr.org> <20010311201658.A8487@lerami.lerctr.org>
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* Larry Rosenman <ler@lerctr.org> [010311 20:16]: > * Larry Rosenman <ler@lerctr.org> [010311 20:00]: > > * Kris Kennaway <kris@obsecurity.org> [010311 19:52]: > > > On Sun, Mar 11, 2001 at 07:31:26PM -0600, Larry Rosenman wrote: > > > > * Kris Kennaway <kris@obsecurity.org> [010311 17:00]: > > > > > On Sun, Mar 11, 2001 at 12:02:41PM -0600, Larry Rosenman wrote: > > > > > > If I make buildworld with CPUTYPE=i486 (on my P-III), and then > > > > > > make installworld on the 486 target, we get a signal 4 in > > > > > > the first install of code, in strip. > > > > > > > > > > Odd. That suggests that gcc is outputting code which can't run on the > > > > > i486 because it uses an illegal instruction. > > > > > > > > > > #define SIGILL 4 /* illegal instr. (not reset when caught) */ > > > > > > > > > > Does anyone else have 486 build reports with CPUTYPE, positive or negative? > > > > > > > > even without CPUTYPE I'm getting the same thing. > > > > > > Well, that says it's not CPUTYPE at fault..that's good. Can you run > > > strip outside of installworld? Perhaps it was already replaced with > > > e.g. a pentium-optimized version by something else. > > It works fine, as does the install from the /tmp/install.$$ directory. > > > > SO, where to now? > > OK, the ****NEWLY BUILT**** strip does *NOT* work on the 486.... > > > Script started on Sun Mar 11 20:10:54 2001 > $ pwd > /usr/obj/usr/src/i386/usr/libexec/elf > $ ls -l strui ip > -rwxr-xr-x 1 root wheel 430232 Mar 11 12:14 strip > $ ./strip > Illegal instruction > $ ^D > > Script done on Sun Mar 11 20:11:09 2001 > > So, it appears CURRENT sources don't make a valid i486 executable. > > attached is the make buildworld output. Here is a quick gdb... Script started on Sun Mar 11 20:38:03 2001 fw# gdb -c strip.core /usr/obj/usr/src/i386/usr/bin/strip GNU gdb 4.18 Copyright 1998 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i386-unknown-freebsd"... (no debugging symbols found)... Core was generated by `strip'. Program terminated with signal 4, Illegal instruction. #0 0x804ef9b in __swhatbuf () (gdb) where #0 0x804ef9b in __swhatbuf () #1 0x804eea2 in __smakebuf () #2 0x80497a3 in __srefill () #3 0x8049401 in fgets () #4 0x804862c in getobjformat () #5 0x80481f3 in main () #6 0x8048135 in _start () (gdb) fw# ^Dexit Script done on Sun Mar 11 20:38:49 2001 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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