225 static bool parse_extcontext(struct extctx_layout *extctx, abi_ptr frame)  in parse_extcontext()  argument
232         if (get_user_u32(magic, frame) || get_user_u32(size, frame + 4)) {  in parse_extcontext()
238             extctx->end.gaddr = frame;  in parse_extcontext()
248             extctx->fpu.gaddr = frame;  in parse_extcontext()
257             extctx->lsx.gaddr = frame;  in parse_extcontext()
266             extctx->lasx.gaddr = frame;  in parse_extcontext()
274         frame += size;  in parse_extcontext()
353     struct target_rt_sigframe *frame;  in setup_rt_frame()  local
361     frame = lock_user(VERIFY_WRITE, frame_addr,  in setup_rt_frame()
362                       sizeof(*frame) + extctx.size, 0);  in setup_rt_frame()
363     if (!frame) {  in setup_rt_frame()
369         extctx.lasx.haddr = (void *)frame + (extctx.lasx.gaddr - frame_addr);  in setup_rt_frame()
370         extctx.end.haddr = (void *)frame + (extctx.end.gaddr - frame_addr);  in setup_rt_frame()
372         extctx.lsx.haddr = (void *)frame + (extctx.lsx.gaddr - frame_addr);  in setup_rt_frame()
373         extctx.end.haddr = (void *)frame + (extctx.end.gaddr - frame_addr);  in setup_rt_frame()
375         extctx.fpu.haddr = (void *)frame + (extctx.fpu.gaddr - frame_addr);  in setup_rt_frame()
376         extctx.end.haddr = (void *)frame + (extctx.end.gaddr - frame_addr);  in setup_rt_frame()
379     frame->rs_info = *info;  in setup_rt_frame()
381     __put_user(0, &frame->rs_uc.tuc_flags);  in setup_rt_frame()
382     __put_user(0, &frame->rs_uc.tuc_link);  in setup_rt_frame()
383     target_save_altstack(&frame->rs_uc.tuc_stack, env);  in setup_rt_frame()
385     setup_sigframe(env, &frame->rs_uc.tuc_mcontext, &extctx);  in setup_rt_frame()
388         __put_user(set->sig[i], &frame->rs_uc.tuc_sigmask.sig[i]);  in setup_rt_frame()
398     unlock_user(frame, frame_addr, sizeof(*frame) + extctx.size);  in setup_rt_frame()
403     struct target_rt_sigframe *frame;  in do_rt_sigreturn()  local
411     if (!parse_extcontext(&extctx, frame_addr + sizeof(*frame))) {  in do_rt_sigreturn()
415     frame = lock_user(VERIFY_READ, frame_addr,  in do_rt_sigreturn()
416                       sizeof(*frame) + extctx.size, 1);  in do_rt_sigreturn()
417     if (!frame) {  in do_rt_sigreturn()
422         extctx.lasx.haddr = (void *)frame + (extctx.lasx.gaddr - frame_addr);  in do_rt_sigreturn()
424         extctx.lsx.haddr = (void *)frame + (extctx.lsx.gaddr - frame_addr);  in do_rt_sigreturn()
426         extctx.fpu.haddr = (void *)frame + (extctx.fpu.gaddr - frame_addr);  in do_rt_sigreturn()
429     target_to_host_sigset(&blocked, &frame->rs_uc.tuc_sigmask);  in do_rt_sigreturn()
432     restore_sigframe(env, &frame->rs_uc.tuc_mcontext, &extctx);  in do_rt_sigreturn()
434     target_restore_altstack(&frame->rs_uc.tuc_stack, env);  in do_rt_sigreturn()
436     unlock_user(frame, frame_addr, 0);  in do_rt_sigreturn()