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authorChristoph Hellwig <hch@lst.de>2007-06-04 15:15:50 +1000
committerPaul Mackerras <paulus@samba.org>2007-06-14 22:29:57 +1000
commit69d15f6b352a681f1db9bc70219a3e8e9d503dbf (patch)
tree07c844fcff3bddce3620d0e88e64383b0b1543b6 /arch/powerpc/kernel/signal.c
parent22e38f29328296d9d4cc33e46fd32a63e807abaf (diff)
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[POWERPC] Consolidate sys_sigaltstack
sys_sigaltstack is the same on 32bit and 64 and we can consolidate it to signal.c. The only difference is that the 32bit code uses ints for the unused register paramaters and 64bit unsigned long. I've changed it to unsigned long because it's the same width on 32bit. (I also wonder who came up with this awkward calling convention.. :)) Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/signal.c')
-rw-r--r--arch/powerpc/kernel/signal.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/signal.c b/arch/powerpc/kernel/signal.c
index 88a1254..325d260 100644
--- a/arch/powerpc/kernel/signal.c
+++ b/arch/powerpc/kernel/signal.c
@@ -63,3 +63,10 @@ void check_syscall_restart(struct pt_regs *regs, struct k_sigaction *ka,
regs->ccr |= 0x10000000;
}
}
+
+long sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
+ unsigned long r5, unsigned long r6, unsigned long r7,
+ unsigned long r8, struct pt_regs *regs)
+{
+ return do_sigaltstack(uss, uoss, regs->gpr[1]);
+}