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-rw-r--r--arch/um/include/os.h1
-rw-r--r--arch/um/kernel/time.c2
-rw-r--r--arch/um/os-Linux/irq.c4
-rw-r--r--arch/um/os-Linux/signal.c10
4 files changed, 13 insertions, 4 deletions
diff --git a/arch/um/include/os.h b/arch/um/include/os.h
index 1897785fd57..a6d80721d3c 100644
--- a/arch/um/include/os.h
+++ b/arch/um/include/os.h
@@ -227,6 +227,7 @@ extern int set_umid(char *name);
extern char *get_umid(void);
/* signal.c */
+extern void timer_init(void);
extern void set_sigstack(void *sig_stack, int size);
extern void remove_sigstack(void);
extern void set_handler(int sig, void (*handler)(int), int flags, ...);
diff --git a/arch/um/kernel/time.c b/arch/um/kernel/time.c
index 2bda07dcd34..758d4f9cb22 100644
--- a/arch/um/kernel/time.c
+++ b/arch/um/kernel/time.c
@@ -97,6 +97,8 @@ static void register_timer(void)
{
int err;
+ timer_init();
+
err = request_irq(TIMER_IRQ, um_timer, IRQF_DISABLED, "timer", NULL);
if (err != 0)
printk(KERN_ERR "register_timer : request_irq failed - "
diff --git a/arch/um/os-Linux/irq.c b/arch/um/os-Linux/irq.c
index a633fa8e0a9..2fe482219b6 100644
--- a/arch/um/os-Linux/irq.c
+++ b/arch/um/os-Linux/irq.c
@@ -145,10 +145,6 @@ void init_irq_signals(int on_sigstack)
flags = on_sigstack ? SA_ONSTACK : 0;
- set_handler(SIGVTALRM, (__sighandler_t) alarm_handler,
- flags | SA_RESTART, SIGUSR1, SIGIO, SIGWINCH, SIGALRM, -1);
- set_handler(SIGALRM, (__sighandler_t) alarm_handler,
- flags | SA_RESTART, SIGUSR1, SIGIO, SIGWINCH, SIGALRM, -1);
set_handler(SIGIO, (__sighandler_t) sig_handler, flags | SA_RESTART,
SIGUSR1, SIGIO, SIGWINCH, SIGALRM, SIGVTALRM, -1);
signal(SIGWINCH, SIG_IGN);
diff --git a/arch/um/os-Linux/signal.c b/arch/um/os-Linux/signal.c
index 1c5267ec13b..53593c8b9c3 100644
--- a/arch/um/os-Linux/signal.c
+++ b/arch/um/os-Linux/signal.c
@@ -85,6 +85,16 @@ void alarm_handler(int sig, struct sigcontext *sc)
set_signals(enabled);
}
+void timer_init(void)
+{
+ set_handler(SIGVTALRM, (__sighandler_t) alarm_handler,
+ SA_ONSTACK | SA_RESTART, SIGUSR1, SIGIO, SIGWINCH,
+ SIGALRM, -1);
+ set_handler(SIGALRM, (__sighandler_t) alarm_handler,
+ SA_ONSTACK | SA_RESTART, SIGUSR1, SIGIO, SIGWINCH,
+ SIGALRM, -1);
+}
+
void set_sigstack(void *sig_stack, int size)
{
stack_t stack = ((stack_t) { .ss_flags = 0,