ref: ff4daa7e93f4ea09506276ecdb69fa1cca19a7a7 dir: /sys/src/ape/lib/9/segbrk.c/
#include <lib9.h> extern void* _SEGBRK(void*, void*); void* segbrk(void *saddr, void *addr) { return _SEGBRK(saddr, addr); }