From: "Simon Holm Thøgersen" <odie@cs.aau.dk>
To: Zach Brown <zach.brown@oracle.com>
Cc: linux-kernel@vger.kernel.org,
Linus Torvalds <torvalds@linux-foundation.org>,
Ingo Molnar <mingo@elte.hu>, Ulrich Drepper <drepper@redhat.com>,
Arjan van de Ven <arjan@infradead.org>,
Andrew Morton <akpm@zip.com.au>,
Alan Cox <alan@lxorguk.ukuu.org.uk>,
Evgeniy Polyakov <johnpol@2ka.mipt.ru>,
"David S. Miller" <davem@davemloft.net>,
Suparna Bhattacharya <suparna@in.ibm.com>,
Davide Libenzi <davidel@xmailserver.org>,
Jens Axboe <jens.axboe@oracle.com>,
Thomas Gleixner <tglx@linutronix.de>,
Dan Williams <dan.j.williams@gmail.com>,
Jeff Moyer <jmoyer@redhat.com>,
suresh.b.siddha@intel.com
Subject: [PATCH] Fix casting on architectures with 32-bit pointers/longs.
Date: Sat, 08 Dec 2007 13:52:14 +0100 [thread overview]
Message-ID: <1197118334.19335.13.camel@odie.local> (raw)
In-Reply-To: <1196983219534-git-send-email-zach.brown@oracle.com>
tor, 06 12 2007 kl. 15:20 -0800, skrev Zach Brown:
> The following patches are a substantial refactoring of the syslet code. I'm
> branding them as the v7 release of the syslet infrastructure, though they
> represent a signifiant change in focus.
>
> My current focus is to see the most fundamental functionality brought to
> maturity. To me, this means getting a ABI that is used by applications through
> glibc on x86 and PPC64. Only once that is ready should we distract ourselves
> with advanced complexity.
>
> To that end, this patch series differs from v6 in significant ways:
>
> * syslets are initiated by providing syslet arguments to sys_indirect().
>
> * uatoms, threadlets, and the kaio changes are postponed until they can be
> justified and rebuilt on more complete infrastructure. (I'm not saying
> these shouldn't or won't be persued. I'm saying that we should get the
> simplest piece working first.)
>
> * the code is clarified and commented, the patches are bisectable and pass
> checkpatch.
>
> The use of sys_indirect() and the move from 'atom's simplified the ABI
> considerably. I've put a trivial example in a syslet-userspace git tree:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/zab/syslets-userspace.git
>
Signed-of-by: Simon Holm Thøgersen <odie@cs.aau.dk>
---
diff --git a/basic.c b/basic.c
index 418a1a3..5938d85 100644
--- a/basic.c
+++ b/basic.c
@@ -42,7 +42,7 @@ int main(int argc, char **argv)
params.syslet.frame.sp = (u64)(long)memalign(pagesize, pagesize);
memset(¶ms, 0, sizeof(params));
- params.syslet.frame.ip = (u64)syslet_return_func;
+ params.syslet.frame.ip = (u64)(long)syslet_return_func;
params.syslet.frame.sp = (u64)(long)memalign(pagesize, pagesize);
params.syslet.ring_ptr = (u64)(long)ring;
@@ -55,7 +55,7 @@ int main(int argc, char **argv)
pid, my_pid);
}
- params.syslet.frame.ip = (u64)syslet_return_func;
+ params.syslet.frame.ip = (u64)(long)syslet_return_func;
params.syslet.frame.sp = (u64)(long)memalign(pagesize, pagesize);
params.syslet.ring_ptr = (u64)(long)ring;
params.syslet.caller_data = CALLER_DATA;
next prev parent reply other threads:[~2007-12-08 12:54 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-06 23:20 syslets v7: back to basics Zach Brown
2007-12-06 23:20 ` [PATCH 1/6] indirect: use asmlinkage in i386 syscall table prototype Zach Brown
2007-12-06 23:20 ` [PATCH 2/6] syslet: asm-generic support to disable syslets Zach Brown
2007-12-06 23:20 ` [PATCH 3/6] syslet: introduce abi structs Zach Brown
2007-12-06 23:20 ` [PATCH 4/6] syslets: add indirect args Zach Brown
2007-12-06 23:20 ` [PATCH 5/6] syslets: add generic syslets infrastructure Zach Brown
2007-12-06 23:20 ` [PATCH 6/6] syslets: add both 32bit and 64bit x86 syslet support Zach Brown
2007-12-07 11:55 ` [PATCH 5/6] syslets: add generic syslets infrastructure Evgeniy Polyakov
2007-12-07 18:24 ` Zach Brown
2008-01-09 2:03 ` Rusty Russell
2008-01-09 3:00 ` Zach Brown
2008-01-09 3:48 ` Rusty Russell
2008-01-09 18:16 ` Zach Brown
2008-01-09 22:04 ` Rusty Russell
2008-01-09 22:58 ` Linus Torvalds
2008-01-09 23:05 ` Linus Torvalds
2008-01-09 23:47 ` Zach Brown
2008-01-10 1:18 ` Rusty Russell
2008-01-09 23:15 ` Davide Libenzi
2008-01-10 5:41 ` Jeff Garzik
2007-12-08 12:40 ` [PATCH 1/6] indirect: use asmlinkage in i386 syscall table prototype Simon Holm Thøgersen
2007-12-08 21:22 ` Zach Brown
2007-12-08 12:52 ` Simon Holm Thøgersen [this message]
2007-12-10 19:46 ` syslets v7: back to basics Jens Axboe
2007-12-10 21:30 ` Phillip Susi
2007-12-10 22:15 ` Zach Brown
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