ref: 321d79d6f2f158bf005366a5c5f1756a58dca25d dir: /lib/c/target/amd64-sysv-linux/syscall.mk/
SYSCALL = _Exit.o _read.o _write.o _open.o _close.o _brk.o _getpid.o _kill.o _sigaction.o _lseek.o