powerpc/kernel/signal_64.c

47  * When we have signals to deliver, we set up on the user stack,
109 #define unsafe_setup_sigcontext(sc, tsk, signr, set, handler, ctx_has_vsx_region, label)\
111 	if (__unsafe_setup_sigcontext(sc, tsk, signr, set, handler, ctx_has_vsx_region))\
115 					struct task_struct *tsk, int signr, sigset_t *set,
118 	/* When CONFIG_ALTIVEC is set, we _always_ setup v_regs even if the
121 	 * don't lose the VRSAVE content that may have been set prior to
144 		/* set MSR_VEC in the MSR value in the frame to indicate that sc->v_reg)
161 	 * to this context, except in the specific case below where we set it.
173 		/* set MSR_VSX in the MSR value in the frame to
185 	if (set != NULL)
186 		unsafe_put_user(set->sig[0], &sc->oldmask, efault_out);
200  * registers and set up the 'normal' sigcontext registers with rolled-back
209 				 int signr, sigset_t *set, unsigned long handler,
212 	/* When CONFIG_ALTIVEC is set, we _always_ setup v_regs even if the
215 	 * don't lose the VRSAVE content that may have been set prior to
260 		/* set MSR_VEC in the MSR value in the frame to indicate
307 		/* set MSR_VSX in the MSR value in the frame to
323 	if (set != NULL)
324 		err |=  __put_user(set->sig[0], &sc->oldmask);
333 #define unsafe_restore_sigcontext(tsk, set, sig, sc, label) do {	\
334 	if (__unsafe_restore_sigcontext(tsk, set, sig, sc))		\
337 static long notrace __unsafe_restore_sigcontext(struct task_struct *tsk, sigset_t *set,
368 	/* Don't allow userspace to set SOFTE */
376 	if (set != NULL)
377 		unsafe_get_user(set->sig[0], &sc->oldmask, efault_out);
383 	 * uses FP/VEC/VSX, and this process has the MSR bits set, then the
463 	 * TEXASR was set by the signal delivery reclaim, as was TFIAR.
494 	/* Don't allow userspace to set SOFTE */
571 	 * with MSR[TS] set without recheckpointing.
591 	 * to be de-scheduled with MSR[TS] set but without calling
655  * Handle {get,set,swap}_context operations
660 	sigset_t set;
714 	if (__get_user_sigset(&set, &new_ctx->uc_sigmask)) {
718 	set_current_blocked(&set);
748 	sigset_t set;
757 	if (__get_user_sigset(&set, &uc->uc_sigmask))
759 	set_current_blocked(&set);
827 		 * MSR[TS] set, but without CPU in the proper state,
857 int handle_rt_signal64(struct ksignal *ksig, sigset_t *set,
913 	unsafe_copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set), badframe_block);