C++ (Cpp) compat_sys_sigaltstack Beispiele

Beispiel #1

Datei: compat_signal.c Projekt: DirtyDroidX/android_kernel_htc_m8ul

long compat_sys_rt_sigreturn(struct pt_regs *regs)
{
	struct compat_rt_sigframe __user *frame =
		(struct compat_rt_sigframe __user *) compat_ptr(regs->sp);
	sigset_t set;

	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
		goto badframe;
	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
		goto badframe;

	sigdelsetmask(&set, ~_BLOCKABLE);
	set_current_blocked(&set);

	if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
		goto badframe;

	if (compat_sys_sigaltstack(&frame->uc.uc_stack, NULL, regs) != 0)
		goto badframe;

	return 0;

badframe:
	signal_fault("bad sigreturn frame", regs, frame, 0);
	return 0;
}

Beispiel #2

Datei: compat_signal.c Projekt: Smackbox/linux-2.6-sgt

long compat_sys_rt_sigreturn(struct pt_regs *regs)
{
	struct compat_rt_sigframe __user *frame =
		(struct compat_rt_sigframe __user *) compat_ptr(regs->sp);
	sigset_t set;
	long r0;

	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
		goto badframe;
	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
		goto badframe;

	sigdelsetmask(&set, ~_BLOCKABLE);
	spin_lock_irq(&current->sighand->siglock);
	current->blocked = set;
	recalc_sigpending();
	spin_unlock_irq(&current->sighand->siglock);

	if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &r0))
		goto badframe;

	if (compat_sys_sigaltstack(&frame->uc.uc_stack, NULL, regs) != 0)
		goto badframe;

	return r0;

badframe:
	force_sig(SIGSEGV, current);
	return 0;
}