epc               127 kernel/exec.c    p->trapframe->epc = elf.entry;  // initial program counter = main
epc               246 kernel/proc.c    p->trapframe->epc = 0;      // user program counter
epc                47 kernel/proc.h    /*  24 */ uint64 epc;           // saved user program counter
epc                51 kernel/trap.c    p->trapframe->epc = r_sepc();
epc                61 kernel/trap.c      p->trapframe->epc += 4;
epc               120 kernel/trap.c    w_sepc(p->trapframe->epc);