From: Paul Mackerras <paulus@cs.anu.edu.au>
To: karimi@cs.uregina.ca
Cc: linuxppc-dev@lists.linuxppc.org
Subject: Re: DIPC for PowerPC
Date: Mon, 26 Jul 1999 10:21:53 +1000 [thread overview]
Message-ID: <199907260021.KAA01971@tango.anu.edu.au> (raw)
In-Reply-To: <Pine.SGI.3.91.990723194451.18857P-100000@MERCURY.CS.UREGINA.CA> (message from Kamran Karimi on Fri, 23 Jul 1999 19:48:31 -0600 (CST))
Kamran Karimi <karimi@cs.uregina.ca> wrote:
> I did a blind port of DIPC (http://wallybox.cei.net/dipc) to PowerPC
I tried it on the weekend. I had to make a couple of small changes to
get the kernel to compile: asm-ppc/ipc.h didn't define DIPC, and PPC
systems (at least the vast majority of the systems that Linux will run
on) are 32-bit, not 64-bit. I have appended below the diffs for
include/asm-ppc (ipc.h and dipc.h).
I had to hack the userland stuff a bit to get it to compile, due to
the fact that we use glibc-2.1 which doesn't define union semun. It
seems to work fine on one machine, but when I tried using two, dipcd
on the second machine wasn't creating the ~dipcd/referee_backdoor
socket which seems to be necessary. I haven't figured out why yet.
Paul.
diff -urN linux/include/asm-ppc/dipc.h pmac/include/asm-ppc/dipc.h
--- linux/include/asm-ppc/dipc.h Thu Jan 1 10:00:00 1970
+++ pmac/include/asm-ppc/dipc.h Sun Jul 25 19:45:44 1999
@@ -0,0 +1,10 @@
+/*
+ * (C) Kamran Karimi
+ */
+
+#ifndef _ASM_DIPC_H
+#define _ASM_DIPC_H
+
+#define MY_DIPC_ARCH LINUX_BIG_32
+
+#endif _ASM_DIPC_H
diff -urN linux/include/asm-ppc/ipc.h pmac/include/asm-ppc/ipc.h
--- linux/include/asm-ppc/ipc.h Fri May 14 22:08:03 1999
+++ pmac/include/asm-ppc/ipc.h Sun Jul 25 20:04:09 1999
@@ -23,6 +23,9 @@
#define SHMGET 23
#define SHMCTL 24
+/* Used by the DIPC package, try and avoid reusing it */
+#define DIPC 25
+
#define IPCCALL(version,op) ((version)<<16 | (op))
#endif /* __PPC_IPC_H__ */
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next prev parent reply other threads:[~1999-07-26 0:21 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-07-24 1:48 DIPC for PowerPC Kamran Karimi
1999-07-26 0:21 ` Paul Mackerras [this message]
1999-07-26 1:57 ` Kamran Karimi
1999-07-27 20:42 ` Tom Rini
1999-07-27 20:48 ` Kamran Karimi
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