result += "-" + r1.String() + r.a.String()
			}
		}
		result += "}"
	}
	return fmt.Sprintf("%s[%d]", result, r.index)
}

type sysOp struct {
	op          sysInstFields
	r           Reg
	hasOperand2 bool
}

func (s sysOp) isArg() {}

func (s sysOp) String() string {
	result := s.op.String()
	// If s.hasOperand2 is false, the value in the register
	// specified by s.r is ignored.

		# https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/include/uapi/asm-generic/unistd.h?id=refs/heads/master#n716
		return;
	}
	$name =~ y/a-z/A-Z/;
	$num = $num + $offset;
	print "	SYS_$name = $num;\n";
}

my $prev;
open(GCC, "gcc -E -dD $ARGV[0] |") || die "can't run gcc";
while(<GCC>){
	if(/^#define __NR_Linux\s+([0-9]+)/){
		# mips/mips64: extract offset
		$offset = $1;
	}

	"SWPALH",
	"SWPALW",
	"SWPAW",
	"SWPB",
	"SWPD",
	"SWPH",
	"SWPLB",
	"SWPLD",
	"SWPLH",
	"SWPLW",
	"SWPW",
	"SXTB",
	"SXTBW",
	"SXTH",
	"SXTHW",
	"SXTW",
	"SYS",
	"SYSL",
	"TBNZ",
	"TBZ",
	"TLBI",
	"TST",
	"TSTW",
	"UBFIZ",
	"UBFIZW",
	"UBFM",
	"UBFMW",
	"UBFX",
	"UBFXW",
	"UCVTFD",
	"UCVTFS",
	"UCVTFWD",
	"UCVTFWS",
	"UDIV",

func (sysd SystemdInitSystem) ServiceRestart(service string) error {
	// Before we try to restart any service, make sure that systemd is ready
	if err := sysd.reloadSystemd(); err != nil {
		return err
	}
	args := []string{"restart", service}
	return exec.Command("systemctl", args...).Run()
}

// ServiceStop tries to stop a specific service

//sys	Exit(code int) = SYS_EXIT_GROUP
//sys	Fallocate(fd int, mode uint32, off int64, len int64) (err error)
//sys	Fchdir(fd int) (err error)
//sys	Fchmod(fd int, mode uint32) (err error)
//sys	Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error)
//sys	Fdatasync(fd int) (err error)
//sys	Fgetxattr(fd int, attr string, dest []byte) (sz int, err error)
//sys	FinitModule(fd int, params string, flags int) (err error)

	SYS_SYNC                 = 36  // { void|sys||sync(void); }
	SYS_KILL                 = 37  // { int|sys||kill(pid_t pid, int signum); }
	SYS_GETPPID              = 39  // { pid_t|sys||getppid(void); }
	SYS_DUP                  = 41  // { int|sys||dup(int fd); }
	SYS_PIPE                 = 42  // { int|sys||pipe(void); }
	SYS_GETEGID              = 43  // { gid_t|sys||getegid(void); }

	SYS_SYNC                 = 36  // { void|sys||sync(void); }
	SYS_KILL                 = 37  // { int|sys||kill(pid_t pid, int signum); }
	SYS_GETPPID              = 39  // { pid_t|sys||getppid(void); }
	SYS_DUP                  = 41  // { int|sys||dup(int fd); }
	SYS_PIPE                 = 42  // { int|sys||pipe(void); }
	SYS_GETEGID              = 43  // { gid_t|sys||getegid(void); }

	SYS_OPEN                 = 5   // { int|sys||open(const char *path, int flags, ... mode_t mode); }
	SYS_CLOSE                = 6   // { int|sys||close(int fd); }
	SYS_LINK                 = 9   // { int|sys||link(const char *path, const char *link); }
	SYS_UNLINK               = 10  // { int|sys||unlink(const char *path); }
	SYS_CHDIR                = 12  // { int|sys||chdir(const char *path); }

	SYS_OPEN                 = 5   // { int|sys||open(const char *path, int flags, ... mode_t mode); }
	SYS_CLOSE                = 6   // { int|sys||close(int fd); }
	SYS_LINK                 = 9   // { int|sys||link(const char *path, const char *link); }
	SYS_UNLINK               = 10  // { int|sys||unlink(const char *path); }
	SYS_CHDIR                = 12  // { int|sys||chdir(const char *path); }

	SYS_SYNC                 = 36  // { void|sys||sync(void); }
	SYS_KILL                 = 37  // { int|sys||kill(pid_t pid, int signum); }
	SYS_GETPPID              = 39  // { pid_t|sys||getppid(void); }
	SYS_DUP                  = 41  // { int|sys||dup(int fd); }
	SYS_PIPE                 = 42  // { int|sys||pipe(void); }
	SYS_GETEGID              = 43  // { gid_t|sys||getegid(void); }