Added basic support for FreeBSD.

Freebsd-support: Change bash shebang to use /usr/bin/env

Freebsd-support: Fix go vet "undefined" fixes when running make ci

freebsd: stub xattr functions

/proc/PID/fd does not exist on freebsd.

freebsd-support: modify FchmodatNofollow for FreeBSD

FreeBSD supports the Fchmodat system call, with the AT_SYMLINK_NOFOLLOW
flag. FchmodatNofollow has been modified to use this system call and
flag.

freebsd-support: PR changes and fixes

* Functions in fusefrontend_reverse/node_xattr_freebsd.go have been
  stubbed for now.

* asuser_freebsd.go updated to only run f() when context is nil;
  otherwise log a warning and return an error.

* emulate.go build flags updated, and FreeBSD specific version added.

* sys_freebsd.go bug in Renameat2 with RENAME_EXCHANGE flag fixed.
  FreeBSD does not support atomic file swapping, so this flag now
  returns an error.

* unix2syscall and atime is identical between FreeBSD and Darwin,
  updated filenames so Go will build the file for FreeBSD and Mac OS.

freebsd-support: Addressed more PR comments and fixed build tags

1 files changed, 0 insertions, 26 deletions

diff --git a/internal/syscallcompat/unix2syscall_darwin.go b/internal/syscallcompat/unix2syscall_darwin.go
deleted file mode 100644
index 5767a27..0000000
--- a/internal/syscallcompat/unix2syscall_darwin.go
+++ /dev/null
@@ -1,26 +0,0 @@
-package syscallcompat
-
-import (
-	"syscall"
-
-	"golang.org/x/sys/unix"
-)
-
-// Unix2syscall converts a unix.Stat_t struct to a syscall.Stat_t struct.
-func Unix2syscall(u unix.Stat_t) syscall.Stat_t {
-	return syscall.Stat_t{
-		Dev:       u.Dev,
-		Ino:       u.Ino,
-		Nlink:     u.Nlink,
-		Mode:      u.Mode,
-		Uid:       u.Uid,
-		Gid:       u.Gid,
-		Rdev:      u.Rdev,
-		Size:      u.Size,
-		Blksize:   u.Blksize,
-		Blocks:    u.Blocks,
-		Atimespec: syscall.Timespec(u.Atim),
-		Mtimespec: syscall.Timespec(u.Mtim),
-		Ctimespec: syscall.Timespec(u.Ctim),
-	}
-}