ref: c7bde5b0591d7c8df7182de9ceaa3e5e53d0973a dir: /sys/src/ape/lib/9/segbrk.c/
#include <lib9.h> extern int _SEGBRK(void*, void*); int segbrk(void *saddr, void *addr) { return _SEGBRK(saddr, addr); }