Esempi in C++ (Cpp) per restore_sigregs32

Esempio n. 1

File: compat_signal.c Progetto: 420GrayFox/dsl-n55u-bender

asmlinkage long sys32_sigreturn(struct pt_regs *regs)
{
	sigframe32 __user *frame = (sigframe32 __user *)regs->gprs[15];
	sigset_t set;

	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
		goto badframe;
	if (__copy_from_user(&set.sig, &frame->sc.oldmask, _SIGMASK_COPY_SIZE32))
		goto badframe;

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

	if (restore_sigregs32(regs, &frame->sregs))
		goto badframe;

	return regs->gprs[2];

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

Esempio n. 2

File: compat_signal.c Progetto: AeroGirl/VAR-SOM-AM33-SDK7-Kernel

asmlinkage long sys32_sigreturn(void)
{
	struct pt_regs *regs = task_pt_regs(current);
	sigframe32 __user *frame = (sigframe32 __user *)regs->gprs[15];
	sigset_t set;

	if (__copy_from_user(&set.sig, &frame->sc.oldmask, _SIGMASK_COPY_SIZE32))
		goto badframe;
	set_current_blocked(&set);
	if (restore_sigregs32(regs, &frame->sregs))
		goto badframe;
	if (restore_sigregs_gprs_high(regs, frame->gprs_high))
		goto badframe;
	return regs->gprs[2];
badframe:
	force_sig(SIGSEGV, current);
	return 0;
}

Esempio n. 3

File: compat_signal.c Progetto: Antonio-Zhou/Linux-2.6.11

asmlinkage long sys32_rt_sigreturn(struct pt_regs *regs)
{
	rt_sigframe32 __user *frame = (rt_sigframe32 __user *)regs->gprs[15];
	sigset_t set;
	stack_t st;
	__u32 ss_sp;
	int err;
	mm_segment_t old_fs = get_fs();

	if (verify_area(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_sigregs32(regs, &frame->uc.uc_mcontext))
		goto badframe;

	err = __get_user(ss_sp, &frame->uc.uc_stack.ss_sp);
	st.ss_sp = (void *) A((unsigned long)ss_sp);
	err |= __get_user(st.ss_size, &frame->uc.uc_stack.ss_size);
	err |= __get_user(st.ss_flags, &frame->uc.uc_stack.ss_flags);
	if (err)
		goto badframe; 

	/* It is more difficult to avoid calling this function than to
	   call it and ignore errors.  */
	set_fs (KERNEL_DS);
	do_sigaltstack((stack_t __user *)&st, NULL, regs->gprs[15]);
	set_fs (old_fs);

	return regs->gprs[2];

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

Esempio n. 4

File: compat_signal.c Progetto: AeroGirl/VAR-SOM-AM33-SDK7-Kernel

asmlinkage long sys32_rt_sigreturn(void)
{
	struct pt_regs *regs = task_pt_regs(current);
	rt_sigframe32 __user *frame = (rt_sigframe32 __user *)regs->gprs[15];
	sigset_t set;

	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
		goto badframe;
	set_current_blocked(&set);
	if (restore_sigregs32(regs, &frame->uc.uc_mcontext))
		goto badframe;
	if (restore_sigregs_gprs_high(regs, frame->gprs_high))
		goto badframe;
	if (compat_restore_altstack(&frame->uc.uc_stack))
		goto badframe; 
	return regs->gprs[2];
badframe:
	force_sig(SIGSEGV, current);
	return 0;
}	

Esempio n. 5

File: compat_signal.c Progetto: 420GrayFox/dsl-n55u-bender

asmlinkage long sys32_rt_sigreturn(struct pt_regs *regs)
{
	rt_sigframe32 __user *frame = (rt_sigframe32 __user *)regs->gprs[15];
	sigset_t set;
	stack_t st;
	__u32 ss_sp;
	int err;
	mm_segment_t old_fs = get_fs();

	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_sigregs32(regs, &frame->uc.uc_mcontext))
		goto badframe;

	err = __get_user(ss_sp, &frame->uc.uc_stack.ss_sp);
	st.ss_sp = compat_ptr(ss_sp);
	err |= __get_user(st.ss_size, &frame->uc.uc_stack.ss_size);
	err |= __get_user(st.ss_flags, &frame->uc.uc_stack.ss_flags);
	if (err)
		goto badframe; 

	set_fs (KERNEL_DS);
	do_sigaltstack((stack_t __force __user *)&st, NULL, regs->gprs[15]);
	set_fs (old_fs);

	return regs->gprs[2];

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