ref: f31c5b3b3b9bc06b2ccbb1db17a731ff1b80fcbf 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); }