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authorAl Viro <viro@zeniv.linux.org.uk>2012-12-23 03:17:06 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2013-02-03 18:16:03 -0500
commitb30c7d50af95f7450f877e8172a2341785bce5ab (patch)
treeff62572b1238e723a61161fb747961c751ea1aa0 /arch/mn10300
parent0aa0203fb43f04714004b2c4ad33b858e240555d (diff)
downloadop-kernel-dev-b30c7d50af95f7450f877e8172a2341785bce5ab.zip
op-kernel-dev-b30c7d50af95f7450f877e8172a2341785bce5ab.tar.gz
mn10300: switch to generic sigaltstack
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/mn10300')
-rw-r--r--arch/mn10300/Kconfig1
-rw-r--r--arch/mn10300/kernel/signal.c15
2 files changed, 3 insertions, 13 deletions
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index e70001c..cb50220 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -10,6 +10,7 @@ config MN10300
select HAVE_NMI_WATCHDOG if MN10300_WD_TIMER
select GENERIC_CLOCKEVENTS
select MODULES_USE_ELF_RELA
+ select GENERIC_SIGALTSTACK
config AM33_2
def_bool n
diff --git a/arch/mn10300/kernel/signal.c b/arch/mn10300/kernel/signal.c
index f570b30..8223eb3 100644
--- a/arch/mn10300/kernel/signal.c
+++ b/arch/mn10300/kernel/signal.c
@@ -77,14 +77,6 @@ asmlinkage long sys_sigaction(int sig,
}
/*
- * set alternate signal stack syscall
- */
-asmlinkage long sys_sigaltstack(const stack_t __user *uss, stack_t *uoss)
-{
- return do_sigaltstack(uss, uoss, current_frame()->sp);
-}
-
-/*
* do a signal return; undo the signal stack.
*/
static int restore_sigcontext(struct pt_regs *regs,
@@ -193,8 +185,7 @@ asmlinkage long sys_rt_sigreturn(void)
if (restore_sigcontext(current_frame(), &frame->uc.uc_mcontext, &d0))
goto badframe;
- if (do_sigaltstack(&frame->uc.uc_stack, NULL, current_frame()->sp) ==
- -EFAULT)
+ if (restore_altstack(&frame->uc.uc_stack))
goto badframe;
return d0;
@@ -359,9 +350,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
/* create the ucontext. */
if (__put_user(0, &frame->uc.uc_flags) ||
__put_user(0, &frame->uc.uc_link) ||
- __put_user((void *)current->sas_ss_sp, &frame->uc.uc_stack.ss_sp) ||
- __put_user(sas_ss_flags(regs->sp), &frame->uc.uc_stack.ss_flags) ||
- __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size) ||
+ __save_altstack(&frame->uc.uc_stack, regs->sp) ||
setup_sigcontext(&frame->uc.uc_mcontext,
&frame->fpuctx, regs, set->sig[0]) ||
__copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)))
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