ref: c97d16f7a91d4eb7f6e8a9014079a7d6759bc33c 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); }