summaryrefslogtreecommitdiffstats
path: root/arch/cris/arch-v32/kernel/signal.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/cris/arch-v32/kernel/signal.c')
-rw-r--r--arch/cris/arch-v32/kernel/signal.c68
1 files changed, 6 insertions, 62 deletions
diff --git a/arch/cris/arch-v32/kernel/signal.c b/arch/cris/arch-v32/kernel/signal.c
index b60d1b65a426..01d1375c9004 100644
--- a/arch/cris/arch-v32/kernel/signal.c
+++ b/arch/cris/arch-v32/kernel/signal.c
@@ -51,59 +51,6 @@ struct rt_signal_frame {
void do_signal(int restart, struct pt_regs *regs);
void keep_debug_flags(unsigned long oldccs, unsigned long oldspc,
struct pt_regs *regs);
-/*
- * Swap in the new signal mask, and wait for a signal. Define some
- * dummy arguments to be able to reach the regs argument.
- */
-int
-sys_sigsuspend(old_sigset_t mask)
-{
- sigset_t blocked;
- siginitset(&blocked, mask);
- return sigsuspend(&blocked);
-}
-
-int
-sys_sigaction(int signal, const struct old_sigaction *act,
- struct old_sigaction *oact)
-{
- int retval;
- struct k_sigaction newk;
- struct k_sigaction oldk;
-
- if (act) {
- old_sigset_t mask;
-
- if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
- __get_user(newk.sa.sa_handler, &act->sa_handler) ||
- __get_user(newk.sa.sa_restorer, &act->sa_restorer) ||
- __get_user(newk.sa.sa_flags, &act->sa_flags) ||
- __get_user(mask, &act->sa_mask))
- return -EFAULT;
-
- siginitset(&newk.sa.sa_mask, mask);
- }
-
- retval = do_sigaction(signal, act ? &newk : NULL, oact ? &oldk : NULL);
-
- if (!retval && oact) {
- if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
- __put_user(oldk.sa.sa_handler, &oact->sa_handler) ||
- __put_user(oldk.sa.sa_restorer, &oact->sa_restorer) ||
- __put_user(oldk.sa.sa_flags, &oact->sa_flags) ||
- __put_user(oldk.sa.sa_mask.sig[0], &oact->sa_mask))
- return -EFAULT;
-
- }
-
- 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)
@@ -135,11 +82,9 @@ badframe:
return 1;
}
-/* Define some dummy arguments to be able to reach the regs argument. */
-asmlinkage int
-sys_sigreturn(long r10, long r11, long r12, long r13, long mof, long srp,
- struct pt_regs *regs)
+asmlinkage int sys_sigreturn(void)
{
+ struct pt_regs *regs = current_pt_regs();
sigset_t set;
struct signal_frame __user *frame;
unsigned long oldspc = regs->spc;
@@ -178,11 +123,9 @@ badframe:
return 0;
}
-/* Define some dummy variables to be able to reach the regs argument. */
-asmlinkage int
-sys_rt_sigreturn(long r10, long r11, long r12, long r13, long mof, long srp,
- struct pt_regs *regs)
+asmlinkage int sys_rt_sigreturn(void)
{
+ struct pt_regs *regs = current_pt_regs();
sigset_t set;
struct rt_signal_frame __user *frame;
unsigned long oldspc = regs->spc;
@@ -209,7 +152,7 @@ sys_rt_sigreturn(long r10, long r11, long r12, long r13, long mof, long srp,
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);
@@ -371,6 +314,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
err |= __clear_user(&frame->uc, offsetof(struct ucontext, uc_mcontext));
err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0]);
err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
+ err |= __save_altstack(&frame->uc.uc_stack, rdusp());
if (err)
goto give_sigsegv;