ref: 7367b8d2e75301fb33830404b66ded43bbd56356
dir: /sys/src/9/boot/boot.h/
enum { Debug = 0, }; extern void fatal(char*); extern int readfile(char*, char*, int); extern void run(char*, ...); extern void setenv(char*, char*, int); extern int writefile(char*, char*, int);