[PATCH 2/3] hurd: Mark error functions as __COLD

[Sergey Bugaev <bugaevc@gmail.com>]

This should hopefully hint the compiler that they are unlikely
to be called.

Signed-off-by: Sergey Bugaev <bugaevc@gmail.com>
---
 hurd/hurd.h    | 2 +-
 hurd/hurd/fd.h | 8 ++++----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/hurd/hurd.h b/hurd/hurd.h
index eca4abb7..06f00e93 100644
--- a/hurd/hurd.h
+++ b/hurd/hurd.h
@@ -48,7 +48,7 @@
 #define _HURD_H_EXTERN_INLINE __extern_inline
 #endif
 
-extern int __hurd_fail (error_t err);
+extern int __hurd_fail (error_t err) __COLD;
 
 #ifdef __USE_EXTERN_INLINES
 _HURD_H_EXTERN_INLINE int
diff --git a/hurd/hurd/fd.h b/hurd/hurd/fd.h
index f6139544..241797bf 100644
--- a/hurd/hurd/fd.h
+++ b/hurd/hurd/fd.h
@@ -149,7 +149,7 @@ _hurd_fd_get (int fd)
 /* Check if ERR should generate a signal.
    Returns the signal to take, or zero if none.  */
 
-extern int _hurd_fd_error_signal (error_t err);
+extern int _hurd_fd_error_signal (error_t err) __COLD;
 
 #ifdef __USE_EXTERN_INLINES
 _HURD_FD_H_EXTERN_INLINE int
@@ -174,7 +174,7 @@ _hurd_fd_error_signal (error_t err)
    always use this function to handle errors from RPCs made on file
    descriptor ports.  Some errors are translated into signals.  */
 
-extern error_t _hurd_fd_error (int fd, error_t err);
+extern error_t _hurd_fd_error (int fd, error_t err) __COLD;
 
 #ifdef __USE_EXTERN_INLINES
 _HURD_FD_H_EXTERN_INLINE error_t
@@ -194,7 +194,7 @@ _hurd_fd_error (int fd, error_t err)
 /* Handle error code ERR from an RPC on file descriptor FD's port.
    Set `errno' to the appropriate error code, and always return -1.  */
 
-extern int __hurd_dfail (int fd, error_t err);
+extern int __hurd_dfail (int fd, error_t err) __COLD;
 
 #ifdef __USE_EXTERN_INLINES
 _HURD_FD_H_EXTERN_INLINE int
@@ -208,7 +208,7 @@ __hurd_dfail (int fd, error_t err)
 /* Likewise, but do not raise SIGPIPE on EPIPE if flags contain
    MSG_NOSIGNAL.  */
 
-extern int __hurd_sockfail (int fd, int flags, error_t err);
+extern int __hurd_sockfail (int fd, int flags, error_t err) __COLD;
 
 #ifdef __USE_EXTERN_INLINES
 _HURD_FD_H_EXTERN_INLINE int
-- 
2.40.1