syscall: use SYS_GETDENTS64 on linux/mips64{,le}
The getdents64 syscall is only available for mips64/mips64le starting
with Linux kernel 3.10. Since mips64le requires at least 4.8 according
to [1] (regarding #16848) using it should be fine.
[1] https://golang.org/wiki/MinimumRequirements
This CL changes the binary layout of type Dirent for mips64/mips64le,
but not the public API. But since the currently used layout doesn't
match the struct linux_dirent returned by the getdents syscall this
should be fine as well.
Fixes #23624
Change-Id: Iaa7306fa6e4442ad2fed41c60b37627a7314f117
Reviewed-on: https://go-review.googlesource.com/91055
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
diff --git a/src/syscall/zsyscall_linux_amd64.go b/src/syscall/zsyscall_linux_amd64.go
index 34cbed8..6545d1a 100644
--- a/src/syscall/zsyscall_linux_amd64.go
+++ b/src/syscall/zsyscall_linux_amd64.go
@@ -479,7 +479,7 @@
} else {
_p0 = unsafe.Pointer(&_zero)
}
- r0, _, e1 := Syscall(_SYS_getdents, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
+ r0, _, e1 := Syscall(SYS_GETDENTS64, uintptr(fd), uintptr(_p0), uintptr(len(buf)))
n = int(r0)
if e1 != 0 {
err = errnoErr(e1)
