294  * Set up a signal frame.
446     struct sigframe *frame;  in setup_frame()  local
458     frame = lock_user(VERIFY_WRITE, frame_addr, total_size, 0);  in setup_frame()
459     if (!frame) {  in setup_frame()
464     fxstate = (void *)frame + (fxstate_addr - frame_addr);  in setup_frame()
468     fpstate = (void *)frame + (fpstate_addr - frame_addr);  in setup_frame()
471     setup_sigcontext(env, &frame->sc, set->sig[0], fpkind,  in setup_frame()
475         __put_user(set->sig[i], &frame->extramask[i - 1]);  in setup_frame()
481         __put_user(ka->sa_restorer, &frame->pretcode);  in setup_frame()
484         install_sigtramp(frame->retcode);  in setup_frame()
485         __put_user(default_sigreturn, &frame->pretcode);  in setup_frame()
487     unlock_user(frame, frame_addr, total_size);  in setup_frame()
495     __put_user(sig, &frame->sig);  in setup_frame()
514     struct rt_sigframe *frame;  in setup_rt_frame()  local
526     frame = lock_user(VERIFY_WRITE, frame_addr, total_size, 0);  in setup_rt_frame()
527     if (!frame) {  in setup_rt_frame()
532         frame->info = *info;  in setup_rt_frame()
536     __put_user(fpkind == FPSTATE_XSAVE, &frame->uc.tuc_flags);  in setup_rt_frame()
537     __put_user(0, &frame->uc.tuc_link);  in setup_rt_frame()
538     target_save_altstack(&frame->uc.tuc_stack, env);  in setup_rt_frame()
540     fxstate = (void *)frame + (fxstate_addr - frame_addr);  in setup_rt_frame()
544     fpstate = (void *)frame + (fpstate_addr - frame_addr);  in setup_rt_frame()
547     setup_sigcontext(env, &frame->uc.tuc_mcontext, set->sig[0], fpkind,  in setup_rt_frame()
551         __put_user(set->sig[i], &frame->uc.tuc_sigmask.sig[i]);  in setup_rt_frame()
559         __put_user(ka->sa_restorer, &frame->pretcode);  in setup_rt_frame()
566         install_rt_sigtramp(frame->retcode);  in setup_rt_frame()
567         __put_user(default_rt_sigreturn, &frame->pretcode);  in setup_rt_frame()
578     __put_user(sig, &frame->sig);  in setup_rt_frame()
580     __put_user(env->regs[R_EDX], &frame->pinfo);  in setup_rt_frame()
582     __put_user(env->regs[R_ECX], &frame->puc);  in setup_rt_frame()
589     unlock_user(frame, frame_addr, total_size);  in setup_rt_frame()
603  * Restore a signal frame.
634          * Restore the features indicated in the frame, masked by  in xrstor_sigcontext()
635          * those currently enabled.  Re-check the frame size.  in xrstor_sigcontext()
700      * Copy the legacy state because the FP portion of the FX frame has  in frstor_sigcontext()
796     struct sigframe *frame;  in do_sigreturn()  local
802     if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) {  in do_sigreturn()
808     __get_user(target_set.sig[0], &frame->sc.oldmask);  in do_sigreturn()
810         __get_user(target_set.sig[i], &frame->extramask[i - 1]);  in do_sigreturn()
816     if (!restore_sigcontext(env, &frame->sc)) {  in do_sigreturn()
820     unlock_user_struct(frame, frame_addr, 0);  in do_sigreturn()
828     struct rt_sigframe *frame;  in do_rt_sigreturn()  local
833     if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1))  in do_rt_sigreturn()
835     target_to_host_sigset(&set, &frame->uc.tuc_sigmask);  in do_rt_sigreturn()
838     if (!restore_sigcontext(env, &frame->uc.tuc_mcontext)) {  in do_rt_sigreturn()
842     target_restore_altstack(&frame->uc.tuc_stack, env);  in do_rt_sigreturn()
844     unlock_user_struct(frame, frame_addr, 0);  in do_rt_sigreturn()
848     unlock_user_struct(frame, frame_addr, 0);  in do_rt_sigreturn()