x/sys/unix: O_PATH & O_TMPFILE aren't defined on Linux

[gopherbot]

by joejob357:

go version devel +7da10a02f6dd Sun Apr 20 11:02:01 2014 +0200 linux/amd64

Linux defines the constants O_PATH (as of v2.6.39) and O_TMPFILE (as of v3.11), but
neither are exposed by the syscall package. Running src/pkg/syscall/mkerrors.sh
correctly picks up O_PATH, but not O_TMPFILE. Perhaps this is because of how it is
defined:

  #define O_TMPFILE (__O_TMPFILE | O_DIRECTORY)

(in /usr/src/linux-headers-3.13-1-common/include/uapi/asm-generic/fcntl.h)

[ianlancetaylor]

Comment 1:

Labels changed: added repo-main, release-go1.4.

Status changed to Accepted.

[rsc]

Comment 2:

package syscall is frozen so these constants will never appear there. Perhaps they
should appear in go.sys/unix.

Labels changed: added repo-sys, release-none, removed repo-main, release-go1.4.