unix: 32-bit MIPS splice system call returns int, not int64

Change-Id: If795a53b8532c35731f18b9a94ca8c53a4bc23c2
Reviewed-on: https://go-review.googlesource.com/109357
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

unix/syscall_linux_mipsx.go

@@ -36,7 +36,7 @@ func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr,
 
 //sysnb	Setreuid(ruid int, euid int) (err error)
 //sys	Shutdown(fd int, how int) (err error)
-//sys	Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error)
+//sys	Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int, err error)
 
 //sys	SyncFileRange(fd int, off int64, n int64, flags int) (err error)
 //sys	Truncate(path string, length int64) (err error) = SYS_TRUNCATE64

unix/zsyscall_linux_mips.go

@@ -1758,9 +1758,9 @@ func Shutdown(fd int, how int) (err error) {
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
-func Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error) {
-	r0, r1, e1 := Syscall6(SYS_SPLICE, uintptr(rfd), uintptr(unsafe.Pointer(roff)), uintptr(wfd), uintptr(unsafe.Pointer(woff)), uintptr(len), uintptr(flags))
-	n = int64(int64(r0)<<32 | int64(r1))
+func Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int, err error) {
+	r0, _, e1 := Syscall6(SYS_SPLICE, uintptr(rfd), uintptr(unsafe.Pointer(roff)), uintptr(wfd), uintptr(unsafe.Pointer(woff)), uintptr(len), uintptr(flags))
+	n = int(r0)
 	if e1 != 0 {
 		err = errnoErr(e1)
 	}

unix/zsyscall_linux_mipsle.go

@@ -1758,9 +1758,9 @@ func Shutdown(fd int, how int) (err error) {
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
-func Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error) {
-	r0, r1, e1 := Syscall6(SYS_SPLICE, uintptr(rfd), uintptr(unsafe.Pointer(roff)), uintptr(wfd), uintptr(unsafe.Pointer(woff)), uintptr(len), uintptr(flags))
-	n = int64(int64(r1)<<32 | int64(r0))
+func Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int, err error) {
+	r0, _, e1 := Syscall6(SYS_SPLICE, uintptr(rfd), uintptr(unsafe.Pointer(roff)), uintptr(wfd), uintptr(unsafe.Pointer(woff)), uintptr(len), uintptr(flags))
+	n = int(r0)
 	if e1 != 0 {
 		err = errnoErr(e1)
 	}