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Diffstat (limited to 'arch/frv/kernel/signal.c')
-rw-r--r--arch/frv/kernel/signal.c57
1 files changed, 10 insertions, 47 deletions
diff --git a/arch/frv/kernel/signal.c b/arch/frv/kernel/signal.c
index 595bf1e5a5dc..f3b9064c548c 100644
--- a/arch/frv/kernel/signal.c
+++ b/arch/frv/kernel/signal.c
@@ -28,8 +28,6 @@
#define DEBUG_SIG 0
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
struct fdpic_func_descriptor {
unsigned long text;
unsigned long GOT;
@@ -149,7 +147,6 @@ asmlinkage int sys_sigreturn(void)
__copy_from_user(&set.sig[1], &frame->extramask, sizeof(frame->extramask)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(&frame->sc, &gr8))
@@ -172,7 +169,6 @@ asmlinkage int sys_rt_sigreturn(void)
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
set_current_blocked(&set);
if (restore_sigcontext(&frame->uc.uc_mcontext, &gr8))
@@ -426,9 +422,10 @@ give_sigsegv:
/*
* OK, we're invoking a handler
*/
-static int handle_signal(unsigned long sig, siginfo_t *info,
- struct k_sigaction *ka, sigset_t *oldset)
+static void handle_signal(unsigned long sig, siginfo_t *info,
+ struct k_sigaction *ka)
{
+ sigset_t *oldset = sigmask_to_save();
int ret;
/* Are we from a system call? */
@@ -460,11 +457,11 @@ static int handle_signal(unsigned long sig, siginfo_t *info,
else
ret = setup_frame(sig, ka, oldset);
- if (ret == 0)
- block_sigmask(ka, sig);
-
- return ret;
+ if (ret)
+ return;
+ signal_delivered(sig, info, ka, __frame,
+ test_thread_flag(TIF_SINGLESTEP));
} /* end handle_signal() */
/*****************************************************************************/
@@ -477,44 +474,14 @@ static void do_signal(void)
{
struct k_sigaction ka;
siginfo_t info;
- sigset_t *oldset;
int signr;
- /*
- * We want the common case to go fast, which
- * is why we may in certain cases get here from
- * kernel mode. Just return without doing anything
- * if so.
- */
- if (!user_mode(__frame))
- return;
-
- if (try_to_freeze())
- goto no_signal;
-
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- oldset = &current->saved_sigmask;
- else
- oldset = &current->blocked;
-
signr = get_signal_to_deliver(&info, &ka, __frame, NULL);
if (signr > 0) {
- if (handle_signal(signr, &info, &ka, oldset) == 0) {
- /* a signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TIF_RESTORE_SIGMASK flag */
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- clear_thread_flag(TIF_RESTORE_SIGMASK);
-
- tracehook_signal_handler(signr, &info, &ka, __frame,
- test_thread_flag(TIF_SINGLESTEP));
- }
-
+ handle_signal(signr, &info, &ka);
return;
}
-no_signal:
/* Did we come from a system call? */
if (__frame->syscallno != -1) {
/* Restart the system call - no handlers present */
@@ -536,11 +503,7 @@ no_signal:
/* if there's no signal to deliver, we just put the saved sigmask
* back */
- if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
- }
-
+ restore_saved_sigmask();
} /* end do_signal() */
/*****************************************************************************/
@@ -555,7 +518,7 @@ asmlinkage void do_notify_resume(__u32 thread_info_flags)
clear_thread_flag(TIF_SINGLESTEP);
/* deal with pending signal delivery */
- if (thread_info_flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK))
+ if (thread_info_flags & _TIF_SIGPENDING))
do_signal();
/* deal with notification on about to resume userspace execution */