entry              22 bootmain.c       void (*entry)(void);
entry              46 bootmain.c       entry = (void(*)(void))(elf->entry);
entry              47 bootmain.c       entry();
entry              12 elf.h            uint entry;
entry              93 exec.c           proc->tf->eip = elf.entry;  // main
entry              22 mp.h             ushort entry;                 // entry count