#include<u.h>#include<libc.h>#include<ureg.h>int__noterestore(void);voidnotejmp(void*vr,jmp_bufj,intret){structUreg*r=vr;/* * song and dance to get around the kernel smashing r3 in noted */r->r4=ret;if(ret==0)r->r4=1;r->r5=j[JMPBUFPC]-JMPBUFDPC;r->pc=(ulong)__noterestore;r->sp=j[JMPBUFSP];noted(NCONT);}