#include <linux/tty.h>
#include <linux/binfmts.h>
#include <linux/module.h>
+#include <linux/tracehook.h>
#include <asm/setup.h>
#include <asm/uaccess.h>
#include <asm/traps.h>
#include <asm/ucontext.h>
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
#ifdef CONFIG_MMU
/*
asmlinkage int
sys_sigsuspend(int unused0, int unused1, old_sigset_t mask)
{
- mask &= _BLOCKABLE;
- spin_lock_irq(¤t->sighand->siglock);
- current->saved_sigmask = current->blocked;
- siginitset(¤t->blocked, mask);
- recalc_sigpending();
- spin_unlock_irq(¤t->sighand->siglock);
-
- current->state = TASK_INTERRUPTIBLE;
- schedule();
- set_restore_sigmask();
-
- return -ERESTARTNOHAND;
+ sigset_t blocked;
+ siginitset(&blocked, mask);
+ return sigsuspend(&blocked);
}
asmlinkage int
sizeof(frame->extramask))))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
- current->blocked = set;
- recalc_sigpending();
+ set_current_blocked(&set);
if (restore_sigcontext(regs, &frame->sc, frame + 1))
goto badframe;
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
- sigdelsetmask(&set, ~_BLOCKABLE);
- current->blocked = set;
- recalc_sigpending();
+ set_current_blocked(&set);
if (rt_restore_ucontext(regs, sw, &frame->uc))
goto badframe;
*/
static void
handle_signal(int sig, struct k_sigaction *ka, siginfo_t *info,
- sigset_t *oldset, struct pt_regs *regs)
+ struct pt_regs *regs)
{
+ sigset_t *oldset = sigmask_to_save();
int err;
/* are we from a system call? */
if (regs->orig_d0 >= 0)
if (err)
return;
- sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask);
- if (!(ka->sa.sa_flags & SA_NODEFER))
- sigaddset(¤t->blocked,sig);
- recalc_sigpending();
+ signal_delivered(sig, info, ka, regs, 0);
if (test_thread_flag(TIF_DELAYED_TRACE)) {
regs->sr &= ~0x8000;
send_sig(SIGTRAP, current, 1);
}
-
- clear_thread_flag(TIF_RESTORE_SIGMASK);
}
/*
* want to handle. Thus you cannot kill init even with a SIGKILL even by
* mistake.
*/
-asmlinkage void do_signal(struct pt_regs *regs)
+static void do_signal(struct pt_regs *regs)
{
siginfo_t info;
struct k_sigaction ka;
int signr;
- sigset_t *oldset;
current->thread.esp0 = (unsigned long) regs;
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- oldset = ¤t->saved_sigmask;
- else
- oldset = ¤t->blocked;
-
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
if (signr > 0) {
/* Whee! Actually deliver the signal. */
- handle_signal(signr, &ka, &info, oldset, regs);
+ handle_signal(signr, &ka, &info, regs);
return;
}
handle_restart(regs, NULL, 0);
/* If there's no signal to deliver, we just restore the saved mask. */
- if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL);
- }
+ restore_saved_sigmask();
+}
+
+void do_notify_resume(struct pt_regs *regs)
+{
+ if (test_thread_flag(TIF_SIGPENDING))
+ do_signal(regs);
+
+ if (test_and_clear_thread_flag(TIF_NOTIFY_RESUME))
+ tracehook_notify_resume(regs);
}