C++ (Cpp) sig_uses_siginfo Examples

Example #1

File: signal.c Project: 24hours/linux

static void handle_signal(unsigned long sig, siginfo_t *info,
	struct k_sigaction *ka, struct pt_regs *regs)
{
	sigset_t *oldset = sigmask_to_save();
	int ret;
	struct mips_abi *abi = current->thread.abi;
#ifdef CONFIG_CPU_MICROMIPS
	void *vdso;
	unsigned int tmp = (unsigned int)current->mm->context.vdso;

	set_isa16_mode(tmp);
	vdso = (void *)tmp;
#else
	void *vdso = current->mm->context.vdso;
#endif

	if (regs->regs[0]) {
		switch(regs->regs[2]) {
		case ERESTART_RESTARTBLOCK:
		case ERESTARTNOHAND:
			regs->regs[2] = EINTR;
			break;
		case ERESTARTSYS:
			if (!(ka->sa.sa_flags & SA_RESTART)) {
				regs->regs[2] = EINTR;
				break;
			}
		/* fallthrough */
		case ERESTARTNOINTR:
			regs->regs[7] = regs->regs[26];
			regs->regs[2] = regs->regs[0];
			regs->cp0_epc -= 4;
		}

		regs->regs[0] = 0;		/* Don't deal with this again.	*/
	}

	if (sig_uses_siginfo(ka))
		ret = abi->setup_rt_frame(vdso + abi->rt_signal_return_offset,
					  ka, regs, sig, oldset, info);
	else
		ret = abi->setup_frame(vdso + abi->signal_return_offset,
				       ka, regs, sig, oldset);

	if (ret)
		return;

	signal_delivered(sig, info, ka, regs, 0);
}

Example #2

File: signal.c Project: IgnasD/Tomato-RAF

static int handle_signal(unsigned long sig, siginfo_t *info,
	struct k_sigaction *ka, sigset_t *oldset, struct pt_regs *regs)
{
	int ret;
	struct mips_abi *abi = current->thread.abi;
	void *vdso = current->mm->context.vdso;

	if (regs->regs[0]) {
		switch(regs->regs[2]) {
		case ERESTART_RESTARTBLOCK:
		case ERESTARTNOHAND:
			regs->regs[2] = EINTR;
			break;
		case ERESTARTSYS:
			if (!(ka->sa.sa_flags & SA_RESTART)) {
				regs->regs[2] = EINTR;
				break;
			}
		/* fallthrough */
		case ERESTARTNOINTR:
			regs->regs[7] = regs->regs[26];
			regs->regs[2] = regs->regs[0];
			regs->cp0_epc -= 4;
		}

		regs->regs[0] = 0;		/* Don't deal with this again.  */
	}

	if (sig_uses_siginfo(ka))
		ret = abi->setup_rt_frame(vdso + abi->rt_signal_return_offset,
					  ka, regs, sig, oldset, info);
	else
		ret = abi->setup_frame(vdso + abi->signal_return_offset,
				       ka, regs, sig, oldset);

	if (ret)
		return ret;

	spin_lock_irq(&current->sighand->siglock);
	sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
	if (!(ka->sa.sa_flags & SA_NODEFER))
		sigaddset(&current->blocked,sig);
	recalc_sigpending();
	spin_unlock_irq(&current->sighand->siglock);

	return ret;
}

Example #3

File: signal.c Project: KrisChaplin/LRT2x4_v1.0.2.06_GPL_source

static inline int handle_signal(unsigned long sig, siginfo_t *info,
	struct k_sigaction *ka, sigset_t *oldset, struct pt_regs *regs)
{
	int ret;

	switch(regs->regs[0]) {
	case ERESTART_RESTARTBLOCK:
	case ERESTARTNOHAND:
		regs->regs[2] = EINTR;
		break;
	case ERESTARTSYS:
		if (!(ka->sa.sa_flags & SA_RESTART)) {
			regs->regs[2] = EINTR;
			break;
		}
	/* fallthrough */
	case ERESTARTNOINTR:		/* Userland will reload $v0.  */
		regs->regs[7] = regs->regs[26];
		regs->cp0_epc -= 8;
	}

	regs->regs[0] = 0;		/* Don't deal with this again.  */

	if (sig_uses_siginfo(ka))
		ret = current->thread.abi->setup_rt_frame(ka, regs, sig, oldset, info);
	else
		ret = current->thread.abi->setup_frame(ka, regs, sig, oldset);

	spin_lock_irq(&current->sighand->siglock);
	sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
	if (!(ka->sa.sa_flags & SA_NODEFER))
		sigaddset(&current->blocked,sig);
	recalc_sigpending();
	spin_unlock_irq(&current->sighand->siglock);

	return ret;
}