cris: switch to generic sigaltstack
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index c59a01d..22d4702 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -50,6 +50,7 @@
select GENERIC_CMOS_UPDATE
select MODULES_USE_ELF_RELA
select CLONE_BACKWARDS2
+ select GENERIC_SIGALTSTACK
config HZ
int
diff --git a/arch/cris/arch-v10/kernel/signal.c b/arch/cris/arch-v10/kernel/signal.c
index 0bb477c..187237f 100644
--- a/arch/cris/arch-v10/kernel/signal.c
+++ b/arch/cris/arch-v10/kernel/signal.c
@@ -84,12 +84,6 @@
return ret;
}
-int sys_sigaltstack(const stack_t *uss, stack_t __user *uoss)
-{
- return do_sigaltstack(uss, uoss, rdusp());
-}
-
-
/*
* Do a signal return; undo the signal stack.
*/
@@ -214,7 +208,7 @@
if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
goto badframe;
- if (do_sigaltstack(&frame->uc.uc_stack, NULL, rdusp()) == -EFAULT)
+ if (restore_altstack(&frame->uc.uc_stack))
goto badframe;
return regs->r10;
diff --git a/arch/cris/arch-v32/kernel/signal.c b/arch/cris/arch-v32/kernel/signal.c
index b60d1b6..168b695 100644
--- a/arch/cris/arch-v32/kernel/signal.c
+++ b/arch/cris/arch-v32/kernel/signal.c
@@ -99,12 +99,6 @@
return retval;
}
-int
-sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss)
-{
- return do_sigaltstack(uss, uoss, rdusp());
-}
-
static int
restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
{
@@ -209,7 +203,7 @@
if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
goto badframe;
- if (do_sigaltstack(&frame->uc.uc_stack, NULL, rdusp()) == -EFAULT)
+ if (restore_altstack(&frame->uc.uc_stack))
goto badframe;
keep_debug_flags(oldccs, oldspc, regs);