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| author | Roland McGrath <roland@gcc.gnu.org> | 1993-04-06 19:23:20 +0000 |
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| committer | Roland McGrath <roland@gcc.gnu.org> | 1993-04-06 19:23:20 +0000 |
| commit | 28c75e179813084f9a27702615cbaf3a289cfdc5 (patch) | |
| tree | 0c4a1a224b391490808097dde28045620e698606 /gcc | |
| parent | a3c11cd3504cfee6eb1d8416a56c1100745d0ba5 (diff) | |
| download | gcc-28c75e179813084f9a27702615cbaf3a289cfdc5.zip gcc-28c75e179813084f9a27702615cbaf3a289cfdc5.tar.gz gcc-28c75e179813084f9a27702615cbaf3a289cfdc5.tar.bz2 | |
entered into RCS
From-SVN: r4029
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/README.ALTOS | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/gcc/README.ALTOS b/gcc/README.ALTOS new file mode 100644 index 0000000..c0a1a04 --- /dev/null +++ b/gcc/README.ALTOS @@ -0,0 +1,55 @@ +Since COFF-encapsulation is obsolete, this may not be needed anymore. + +Return-Path: <jkp@sauna.hut.fi> +Date: Mon, 10 Apr 89 10:13:45 +0300 +From: Jyrki Kuoppala <jkp@sauna.hut.fi> +Sender: jkp@sauna.hut.fi +To: info-gcc@prep.ai.mit.edu +Subject: Kernel fix needed for Altos 3068 to get coff-encapsulation working right +Organization: Helsinki University of Technology, Finland. + +Here's a description how to fix a kernel bug in Altos 3068 and get +gcc-compiled programs working. + +Author: Jyrki Kuoppala (jkp@cs.hut.fi) +Last modified: Mon Apr 10 09:28:40 1989 + +There's a bug in the Altos 3068 kernel that causes gcc-compiled +programs to fail in certain situations when the machine has a heavy +load and also in some other situations. The bug exists at least in +SVR 2.2 1.0gT1 and SVR 2.2 1.0e. + +If you have source code to your system, apply the following change to +os/exec.c (function gethead): + +Change the lines containing + + u.u_exdata.ux_tstart = sizeof(struct naout) + + sizeof(struct filhd) + (ep->ef.nscns * sizeof(struct scnhdr)); + +to + + u.u_exdata.ux_tstart = u.u_exdata.ux_txtorg; + +If you only have binary, use sdb to find out the address of the +previous lines (on our system it's gethead+0x140) and use your +favourite binary editor to change the bytes '3036 0162 fffc 0002 0280 +0000' to '23f9 01fb f4ca 01fb f4c2 6016'. This may or may not work in +your case, depending on the version of the operating system and the +phase of the moon. + +Here's what is just before gethead+0x140 to ease finding out the right place: + +0x9224 (gethead+0x122): 23f9 01fb f4ca 01fb f4ce mov.l &0x1fbf4ca.L,&0 +x1fbf4ce.L [] +0x922e (gethead+0x12c): 23f9 01fb f4c6 01fb f4ca mov.l &0x1fbf4c6.L,&0 +x1fbf4ca.L [] +0x9238 (gethead+0x136): 23f9 01fb f4c2 01fb f4c6 mov.l &0x1fbf4c2.L,&0 +x1fbf4c6.L [] + +Good luck ! + +//Jyrki + +jkp@cs.hut.fi + |