ref: f6bff3c0830c1fe63dc45cd84d0a0a3a67b0cdf0 dir: /sys/src/cmd/aux/flashfs/aux.h/
void* emalloc9p(ulong sz); void* erealloc9p(void *v, ulong sz); char* estrdup9p(char *s); #define DMDIR CHDIR