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-rw-r--r--arch/um/include/kern_util.h1
-rw-r--r--arch/um/kernel/time_kern.c64
-rw-r--r--arch/um/os-Linux/irq.c11
-rw-r--r--arch/um/os-Linux/signal.c23
-rw-r--r--arch/um/os-Linux/time.c16
5 files changed, 30 insertions, 85 deletions
diff --git a/arch/um/include/kern_util.h b/arch/um/include/kern_util.h
index 310980b32173..7a64190c1e53 100644
--- a/arch/um/include/kern_util.h
+++ b/arch/um/include/kern_util.h
@@ -75,7 +75,6 @@ extern int hz(void);
extern void uml_idle_timer(void);
extern unsigned int do_IRQ(int irq, union uml_pt_regs *regs);
extern int external_pid(void *t);
-extern void boot_timer_handler(int sig);
extern void interrupt_end(void);
extern void initial_thread_cb(void (*proc)(void *), void *arg);
extern int debugger_signal(int status, int pid);
diff --git a/arch/um/kernel/time_kern.c b/arch/um/kernel/time_kern.c
index d7e044b5e5ee..8e56c58320ba 100644
--- a/arch/um/kernel/time_kern.c
+++ b/arch/um/kernel/time_kern.c
@@ -84,29 +84,6 @@ void timer_irq(union uml_pt_regs *regs)
}
}
-
-void time_init_kern(void)
-{
- long long nsecs;
-
- nsecs = os_nsecs();
- set_normalized_timespec(&wall_to_monotonic, -nsecs / BILLION,
- -nsecs % BILLION);
-}
-
-void do_boot_timer_handler(struct sigcontext * sc)
-{
- unsigned long flags;
- struct pt_regs regs;
-
- CHOOSE_MODE((void) (UPT_SC(&regs.regs) = sc),
- (void) (regs.regs.skas.is_user = 0));
-
- write_seqlock_irqsave(&xtime_lock, flags);
- do_timer(&regs);
- write_sequnlock_irqrestore(&xtime_lock, flags);
-}
-
static DEFINE_SPINLOCK(timer_spinlock);
static unsigned long long local_offset = 0;
@@ -142,6 +119,32 @@ irqreturn_t um_timer(int irq, void *dev, struct pt_regs *regs)
return IRQ_HANDLED;
}
+static void register_timer(void)
+{
+ int err;
+
+ err = request_irq(TIMER_IRQ, um_timer, IRQF_DISABLED, "timer", NULL);
+ if(err != 0)
+ printk(KERN_ERR "timer_init : request_irq failed - "
+ "errno = %d\n", -err);
+
+ timer_irq_inited = 1;
+
+ user_time_init();
+}
+
+extern void (*late_time_init)(void);
+
+void time_init(void)
+{
+ long long nsecs;
+
+ nsecs = os_nsecs();
+ set_normalized_timespec(&wall_to_monotonic, -nsecs / BILLION,
+ -nsecs % BILLION);
+ late_time_init = register_timer;
+}
+
void do_gettimeofday(struct timeval *tv)
{
unsigned long long nsecs = get_time();
@@ -189,18 +192,3 @@ void timer_handler(int sig, union uml_pt_regs *regs)
if(current_thread->cpu == 0)
timer_irq(regs);
}
-
-int __init timer_init(void)
-{
- int err;
-
- user_time_init();
- err = request_irq(TIMER_IRQ, um_timer, IRQF_DISABLED, "timer", NULL);
- if(err != 0)
- printk(KERN_ERR "timer_init : request_irq failed - "
- "errno = %d\n", -err);
- timer_irq_inited = 1;
- return(0);
-}
-
-arch_initcall(timer_init);
diff --git a/arch/um/os-Linux/irq.c b/arch/um/os-Linux/irq.c
index 3788d4568d33..64c114b02701 100644
--- a/arch/um/os-Linux/irq.c
+++ b/arch/um/os-Linux/irq.c
@@ -142,17 +142,14 @@ void os_set_ioignore(void)
void init_irq_signals(int on_sigstack)
{
- __sighandler_t h;
int flags;
flags = on_sigstack ? SA_ONSTACK : 0;
- if (timer_irq_inited)
- h = (__sighandler_t)alarm_handler;
- else
- h = boot_timer_handler;
- set_handler(SIGVTALRM, h, flags | SA_RESTART,
- SIGUSR1, SIGIO, SIGWINCH, SIGALRM, -1);
+ 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 f11b3124a0c8..60e4faedf254 100644
--- a/arch/um/os-Linux/signal.c
+++ b/arch/um/os-Linux/signal.c
@@ -106,29 +106,6 @@ void alarm_handler(ARCH_SIGHDLR_PARAM)
set_signals(enabled);
}
-extern void do_boot_timer_handler(struct sigcontext * sc);
-
-void boot_timer_handler(ARCH_SIGHDLR_PARAM)
-{
- struct sigcontext *sc;
- int enabled;
-
- ARCH_GET_SIGCONTEXT(sc, sig);
-
- enabled = signals_enabled;
- if(!enabled){
- if(sig == SIGVTALRM)
- pending |= SIGVTALRM_MASK;
- else pending |= SIGALRM_MASK;
- return;
- }
-
- block_signals();
-
- do_boot_timer_handler(sc);
- set_signals(enabled);
-}
-
void set_sigstack(void *sig_stack, int size)
{
stack_t stack = ((stack_t) { .ss_flags = 0,
diff --git a/arch/um/os-Linux/time.c b/arch/um/os-Linux/time.c
index 280c4fb9b585..beb7f9666de3 100644
--- a/arch/um/os-Linux/time.c
+++ b/arch/um/os-Linux/time.c
@@ -81,14 +81,6 @@ void uml_idle_timer(void)
set_interval(ITIMER_REAL);
}
-void time_init(void)
-{
- if(signal(SIGVTALRM, boot_timer_handler) == SIG_ERR)
- panic("Couldn't set SIGVTALRM handler");
- set_interval(ITIMER_VIRTUAL);
- time_init_kern();
-}
-
unsigned long long os_nsecs(void)
{
struct timeval tv;
@@ -106,15 +98,7 @@ void idle_sleep(int secs)
nanosleep(&ts, NULL);
}
-/* XXX This partly duplicates init_irq_signals */
-
void user_time_init(void)
{
- set_handler(SIGVTALRM, (__sighandler_t) alarm_handler,
- SA_ONSTACK | SA_RESTART, SIGUSR1, SIGIO, SIGWINCH,
- SIGALRM, SIGUSR2, -1);
- set_handler(SIGALRM, (__sighandler_t) alarm_handler,
- SA_ONSTACK | SA_RESTART, SIGUSR1, SIGIO, SIGWINCH,
- SIGVTALRM, SIGUSR2, -1);
set_interval(ITIMER_VIRTUAL);
}