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>
This commit is contained in:
Tobias Klauser 2018-01-31 13:59:00 +01:00 committed by Brad Fitzpatrick
parent 43288467d2
commit d929e40e9a
22 changed files with 15 additions and 35 deletions

View file

@ -8,7 +8,6 @@ import "unsafe"
const (
_SYS_dup = SYS_DUP2
_SYS_getdents = SYS_GETDENTS64
_SYS_setgroups = SYS_SETGROUPS32
)