Hi Christian,
On 02/13/13 10:39, Christian Svensson wrote:
* arch/openrisc/kernel/process.c:
(copy_thread): Support for CLONE_SETTLS flag.
You'll need to provide a meaningful commit message... including a
Signed-off-by: tag.
---
arch/openrisc/kernel/process.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/arch/openrisc/kernel/process.c b/arch/openrisc/kernel/process.c
index 55210f3..12056bf 100644
--- a/arch/openrisc/kernel/process.c
+++ b/arch/openrisc/kernel/process.c
@@ -142,6 +142,13 @@ copy_thread(unsigned long clone_flags, unsigned long usp,
childregs->sp = usp;
}
+ /*
+ * If CLONE_SETTLS is set, set "tp" in the new task to "r7",
+ * which is passed in as arg #5 to sys_clone().
+ */
+ if (clone_flags & CLONE_SETTLS)
+ childregs->gpr[10] = regs->gpr[7];
+
childregs->gpr[11] = 0; /* Result from fork() */
/*
The patch itself looks good, but...
This is based on an old kernel and this is an area where we've seen a
lot of changes recently. Could you resubmit this patch for a recent
kernel? (I could easily massage this into the latest kernel for you,
but I think it would be a good exercise for you to do so yourself...).
I just fixed up a bad bug in the kernel today so the kernel I'd
recommend you do your work on at this point is:
git://openrisc.net/jonas/linux
i) since you are working on eglibc which supports the generic syscall
interface, you should use the 'for-upstream' branch
ii) however, if you want to use our old uClibc which still lacks the
generic syscall interface, you should use the 'master' branch
/Jonas
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