SYS_ACCEPT4        = 93  // { int sys_accept4(int s, struct sockaddr *name, socklen_t *anamelen, int flags); }
	SYS___THRSLEEP     = 94  // { int sys___thrsleep(const volatile void *ident, clockid_t clock_id, const struct timespec *tp, void *lock, const int *abort); }
	SYS_FSYNC          = 95  // { int sys_fsync(int fd); }
	SYS_SETPRIORITY    = 96  // { int sys_setpriority(int which, id_t who, int prio); }

int nrecvmsg(int, uintptr_t, int);
int nsendmsg(int, uintptr_t, int);
int munmap(uintptr_t, uintptr_t);
int madvise(uintptr_t, size_t, int);
int mprotect(uintptr_t, size_t, int);
int mlock(uintptr_t, size_t);
int mlockall(int);
int msync(uintptr_t, size_t, int);
int munlock(uintptr_t, size_t);
int munlockall();
int pipe(uintptr_t);
int poll(uintptr_t, int, int);

//sys	munmap(addr uintptr, length uintptr) (err error)
//sys	Madvise(b []byte, advice int) (err error)
//sys	Mprotect(b []byte, prot int) (err error)
//sys	Mlock(b []byte) (err error)
//sys	Mlockall(flags int) (err error)
//sys	Msync(b []byte, flags int) (err error)
//sys	Munlock(b []byte) (err error)
//sys	Munlockall() (err error)

//sysnb	pipe(p *[2]_C_int) (err error)

			// The script's hash has changed, so regenerate its output.
			func() {
				r.mu.RUnlock()
				r.mu.Lock()
				defer func() {
					r.mu.Unlock()
					r.mu.RLock()
				}()
				if r.hash != prevHash {
					// The cached result changed while we were waiting on the lock.
					// It may have been updated to our hash or something even newer,
					// so don't overwrite it.
					return
				}

	SYS___SYSCTL             = 202 // { int|sys||__sysctl(const int *name, u_int namelen, void *old, size_t *oldlenp, const void *new, size_t newlen); }
	SYS_MLOCK                = 203 // { int|sys||mlock(const void *addr, size_t len); }
	SYS_MUNLOCK              = 204 // { int|sys||munlock(const void *addr, size_t len); }
	SYS_UNDELETE             = 205 // { int|sys||undelete(const char *path); }

func (p *Profile) updateLocationMapping(from, to *Mapping) {
	for _, l := range p.Location {
		if l.Mapping == from {
			l.Mapping = to
		}
	}
}

func serialize(p *Profile) []byte {
	p.encodeMu.Lock()
	p.preEncode()
	b := marshal(p)
	p.encodeMu.Unlock()
	return b
}

// Write writes the profile as a gzip-compressed marshaled protobuf.
func (p *Profile) Write(w io.Writer) error {

	{name: "AtomicLoadAcq32", argLength: 2, typ: "(UInt32,Mem)"},                               // Load from arg0.  arg1=memory.  Lock acquisition, returns loaded value and new memory.
	{name: "AtomicLoadAcq64", argLength: 2, typ: "(UInt64,Mem)"},                               // Load from arg0.  arg1=memory.  Lock acquisition, returns loaded value and new memory.

	}
	os.Setenv("CMDCOVDATA_TEST_RUN_MAIN", "true")
	os.Exit(m.Run())
}

var tdmu sync.Mutex
var tdcount int

func tempDir(t *testing.T) string {
	tdmu.Lock()
	dir := filepath.Join(testTempDir, fmt.Sprintf("%03d", tdcount))
	tdcount++
	if err := os.Mkdir(dir, 0777); err != nil {
		t.Fatal(err)
	}
	defer tdmu.Unlock()
	return dir
}

const debugtrace = false

	SYS___SYSCTL                 = 202 // { int __sysctl(int *name, u_int namelen, void *old, size_t *oldlenp, void *new, size_t newlen); } __sysctl sysctl_args int
	SYS_MLOCK                    = 203 // { int mlock(const void *addr, size_t len); }
	SYS_MUNLOCK                  = 204 // { int munlock(const void *addr, size_t len); }
	SYS_UNDELETE                 = 205 // { int undelete(char *path); }

	SYS___SYSCTL                 = 202 // { int __sysctl(int *name, u_int namelen, void *old, size_t *oldlenp, void *new, size_t newlen); } __sysctl sysctl_args int
	SYS_MLOCK                    = 203 // { int mlock(const void *addr, size_t len); }
	SYS_MUNLOCK                  = 204 // { int munlock(const void *addr, size_t len); }
	SYS_UNDELETE                 = 205 // { int undelete(char *path); }