Changes to implement:

16575074 stat could support birthtime/crtime on ZFS

These changes have already been accepted upstream. See:

http://git.savannah.gnu.org/gitweb/?p=coreutils.git;a=commitdiff;h=ea916c70a5fc47ee6036a05416bc7462fd8dc1cd

--- coreutils-8.16/configure.ac.orig	2014-03-18 20:12:23.362356112 -0700

+++ coreutils-8.16/configure.ac	2014-03-18 20:13:47.327463395 -0700

@@ -240,6 +240,13 @@

   AC_DEFINE([LOCALTIME_CACHE], [1], [FIXME])

 fi

+# Assume that if getattrat exists, it's compatible with Solaris 11.

+AC_CHECK_FUNCS([getattrat])

+if test $ac_cv_func_getattrat = yes; then

+  LIB_NVPAIR=-lnvpair

+  AC_SUBST([LIB_NVPAIR])

+fi

+

 # SCO-ODT-3.0 is reported to need -los to link programs using initgroups

 AC_CHECK_FUNCS([initgroups])

 if test $ac_cv_func_initgroups = no; then

--- coreutils-8.16/src/Makefile.am.orig	2014-03-18 20:19:34.447566111 -0700

+++ coreutils-8.16/src/Makefile.am	2014-03-18 20:20:20.876086076 -0700

@@ -326,6 +326,9 @@

 runcon_LDADD += $(LIB_SELINUX)

 stat_LDADD += $(LIB_SELINUX)

+# for nvlist_lookup_uint64_array

+stat_LDADD += $(LIB_NVPAIR)

+

 # for gettime, settime, utimecmp, utimens

 copy_LDADD += $(LIB_CLOCK_GETTIME)

 date_LDADD += $(LIB_CLOCK_GETTIME)

--- coreutils-8.16/src/stat.c.orig	2014-03-16 16:55:52.605732676 -0700

+++ coreutils-8.16/src/stat.c	2014-03-18 20:27:04.302699124 -0700

@@ -148,6 +148,11 @@

 # endif

 #endif

+#if HAVE_GETATTRAT

+# include <attr.h>

+# include <sys/nvpair.h>

+#endif

+

 /* FIXME: these are used by printf.c, too */

 #define isodigit(c) ('0' <= (c) && (c) <= '7')

 #define octtobin(c) ((c) - '0')

@@ -689,7 +694,7 @@

 /* Print statfs info.  Return zero upon success, nonzero upon failure.  */

 static bool ATTRIBUTE_WARN_UNUSED_RESULT

 print_statfs (char *pformat, size_t prefix_len, unsigned int m,

-              char const *filename,

+              int fd, char const *filename,

               void const *data)

 {

   STRUCT_STATVFS const *statfsbuf = data;

@@ -861,6 +866,38 @@

   return fail;

 }

+static struct timespec

+get_birthtime (int fd, char const *filename, struct stat const *st)

+{

+  struct timespec ts = get_stat_birthtime (st);

+

+#if HAVE_GETATTRAT

+  if (ts.tv_nsec < 0)

+    {

+      nvlist_t *response;

+      if ((fd < 0

+           ? getattrat (AT_FDCWD, XATTR_VIEW_READWRITE, filename, &response)

+           : fgetattr (fd, XATTR_VIEW_READWRITE, &response))

+          == 0)

+        {

+          uint64_t *val;

+          uint_t n;

+          if (nvlist_lookup_uint64_array (response, A_CRTIME, &val, &n) == 0

+              && 2 <= n

+              && val[0] <= TYPE_MAXIMUM (time_t)

+              && val[1] < 1000000000 * 2 /* for leap seconds */)

+            {

+              ts.tv_sec = val[0];

+              ts.tv_nsec = val[1];

+            }

+          nvlist_free (response);

+        }

+    }

+#endif

+

+  return ts;

+}

+

 /* Map a TS with negative TS.tv_nsec to {0,0}.  */

 static inline struct timespec

 neg_to_zero (struct timespec ts)

@@ -874,7 +911,7 @@

 /* Print stat info.  Return zero upon success, nonzero upon failure.  */

 static bool

 print_stat (char *pformat, size_t prefix_len, unsigned int m,

-            char const *filename, void const *data)

+            int fd, char const *filename, void const *data)

 {

   struct stat *statbuf = (struct stat *) data;

   struct passwd *pw_ent;

@@ -967,7 +1004,7 @@

       break;

     case 'w':

       {

-        struct timespec t = get_stat_birthtime (statbuf);

+        struct timespec t = get_birthtime (fd, filename, statbuf);

         if (t.tv_nsec < 0)

           out_string (pformat, prefix_len, "-");

         else

@@ -976,7 +1013,7 @@

       break;

     case 'W':

       out_epoch_sec (pformat, prefix_len, statbuf,

-                     neg_to_zero (get_stat_birthtime (statbuf)));

+                     neg_to_zero (get_birthtime (fd, filename, statbuf)));

       break;

     case 'x':

       out_string (pformat, prefix_len, human_time (get_stat_atime (statbuf)));

@@ -1051,9 +1088,9 @@

    calling PRINT_FUNC for each %-directive encountered.

    Return zero upon success, nonzero upon failure.  */

 static bool ATTRIBUTE_WARN_UNUSED_RESULT

-print_it (char const *format, char const *filename,

+print_it (char const *format, int fd, char const *filename,

           bool (*print_func) (char *, size_t, unsigned int,

-                              char const *, void const *),

+                              int, char const *, void const *),

           void const *data)

 {

   bool fail = false;

@@ -1102,7 +1139,8 @@

                 putchar ('%');

                 break;

               default:

-                fail |= print_func (dest, len + 1, fmt_code, filename, data);

+                fail |= print_func (dest, len + 1, fmt_code,

+                                    fd, filename, data);

                 break;

               }

             break;

@@ -1185,7 +1223,7 @@

       return false;

     }

-  bool fail = print_it (format, filename, print_statfs, &statfsbuf);

+  bool fail = print_it (format, -1, filename, print_statfs, &statfsbuf);

   return ! fail;

 }

@@ -1194,11 +1232,12 @@

 do_stat (char const *filename, char const *format,

          char const *format2)

 {

+  int fd = STREQ (filename, "-") ? 0 : -1;

   struct stat statbuf;

-  if (STREQ (filename, "-"))

+  if (0 <= fd)

     {

-      if (fstat (STDIN_FILENO, &statbuf) != 0)

+      if (fstat (fd, &statbuf) != 0)

         {

           error (0, errno, _("cannot stat standard input"));

           return false;

@@ -1218,7 +1257,7 @@

   if (S_ISBLK (statbuf.st_mode) || S_ISCHR (statbuf.st_mode))

     format = format2;

-  bool fail = print_it (format, filename, print_stat, &statbuf);

+  bool fail = print_it (format, fd, filename, print_stat, &statbuf);

   return ! fail;

 }