syscall cleanup.

 * rename PORT.sh -> mkall.sh (hopefully more obvious),
   change behavior: run commands by default.
 * pull more constants out of #defines automatically,
   instead of editing large lists by hand.
 * add Recvfrom, Sendto

add os.O_EXCL.

R=r
http://go/go-review/1017009

1 files changed, 21 insertions, 0 deletions

diff --git a/src/pkg/syscall/zsyscall_darwin_386.go b/src/pkg/syscall/zsyscall_darwin_386.go
index 29c11f6a7..ea9ce955f 100644
--- a/src/pkg/syscall/zsyscall_darwin_386.go
+++ b/src/pkg/syscall/zsyscall_darwin_386.go
@@ -77,6 +77,27 @@ func getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (errno int) {
 	return;
 }
 
+func recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, errno int) {
+	var _p0 *byte;
+	if len(p) > 0 {
+		_p0 = &p[0];
+	}
+	r0, _, e1 := Syscall6(SYS_RECVFROM, uintptr(fd), uintptr(unsafe.Pointer(_p0)), uintptr(len(p)), uintptr(flags), uintptr(unsafe.Pointer(from)), uintptr(unsafe.Pointer(fromlen)));
+	n = int(r0);
+	errno = int(e1);
+	return;
+}
+
+func sendto(s int, buf []byte, flags int, to uintptr, addrlen _Socklen) (errno int) {
+	var _p0 *byte;
+	if len(buf) > 0 {
+		_p0 = &buf[0];
+	}
+	_, _, e1 := Syscall6(SYS_SENDTO, uintptr(s), uintptr(unsafe.Pointer(_p0)), uintptr(len(buf)), uintptr(flags), uintptr(to), uintptr(addrlen));
+	errno = int(e1);
+	return;
+}
+
 func kevent(kq int, change uintptr, nchange int, event uintptr, nevent int, timeout *Timespec) (n int, errno int) {
 	r0, _, e1 := Syscall6(SYS_KEVENT, uintptr(kq), uintptr(change), uintptr(nchange), uintptr(event), uintptr(nevent), uintptr(unsafe.Pointer(timeout)));
 	n = int(r0);