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authorUlrich Drepper <drepper@redhat.com>2006-01-20 07:08:05 +0000
committerUlrich Drepper <drepper@redhat.com>2006-01-20 07:08:05 +0000
commit7c65e9001b93d5d20046bc4d50fd10fff5f4adc2 (patch)
tree38f65e2a20910e6d074fbcec137eb66853e70eaa /sysdeps/unix/sysv/linux/fchmodat.c
parent93c04024a6b900b69bbe9a70de06ac23b8273787 (diff)
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* include/fcntl.h: Declare __have_atfcts.
	* sysdeps/unix/sysv/linux/faccessat.c: Use syscall if available.
	* sysdeps/unix/sysv/linux/fchmodat.c: Likewise.
	* sysdeps/unix/sysv/linux/fchownat.c: Likewise.
	* sysdeps/unix/sysv/linux/futimesat.c: Likewise.
	* sysdeps/unix/sysv/linux/linkat.c: Likewise.
	* sysdeps/unix/sysv/linux/mkdirat.c: Likewise.
	* sysdeps/unix/sysv/linux/openat.c: Likewise.
	* sysdeps/unix/sysv/linux/readlinkat.c: Likewise.
	* sysdeps/unix/sysv/linux/renameat.c: Likewise.
	* sysdeps/unix/sysv/linux/symlinkat.c: Likewise.
	* sysdeps/unix/sysv/linux/unlinkat.c: Likewise.
	* sysdeps/unix/sysv/linux/xmknodat.c: Likewise.
	* sysdeps/unix/sysv/linux/wordsize-64/fxstatat.c: Likewise.
	* sysdeps/unix/sysv/linux/kernel-features.h: Define __ASSUME_PSELECT,
	__ASSUME_PPOLL, and __ASSUME_ATFCTS if possible.

	* io/ppoll.c: New file.
	* io/Makefile (routines): Add ppoll.
	(CFLAGS-ppoll.c): Define.
	* io/Versions: Export ppoll for GLIBC_2.4.
	* io/sys/poll.h: Declare ppoll.
	* sysdeps/unix/sysv/linux/ppoll.c: New file.

	* misc/pselect.c: Make it possible to include this file to define
	the generic code as a static function.
	* sysdeps/unix/sysv/linux/pselect.c: New file.
Diffstat (limited to 'sysdeps/unix/sysv/linux/fchmodat.c')
-rw-r--r--sysdeps/unix/sysv/linux/fchmodat.c25
1 files changed, 22 insertions, 3 deletions
diff --git a/sysdeps/unix/sysv/linux/fchmodat.c b/sysdeps/unix/sysv/linux/fchmodat.c
index de35e4376f..8b420153f1 100644
--- a/sysdeps/unix/sysv/linux/fchmodat.c
+++ b/sysdeps/unix/sysv/linux/fchmodat.c
@@ -25,6 +25,7 @@
 #include <unistd.h>
 #include <sys/types.h>
 #include <alloca.h>
+#include <kernel-features.h>
 #include <sysdep.h>
 
 int
@@ -47,6 +48,24 @@ fchmodat (fd, file, mode, flag)
     }
 #endif
 
+  int result;
+
+#ifdef __NR_fchmodat
+# ifndef __ASSUME_ATFCTS
+  if (__have_atfcts >= 0)
+# endif
+    {
+      result = INLINE_SYSCALL (fchmodat, 3, fd, file, mode);
+# ifndef __ASSUME_ATFCTS
+      if (result == -1 && errno == ENOSYS)
+	__have_atfcts = -1;
+      else
+# endif
+	return result;
+    }
+#endif
+
+#ifndef __ASSUME_ATFCTS
   char *buf = NULL;
 
   if (fd != AT_FDCWD && file[0] != '/')
@@ -67,14 +86,13 @@ fchmodat (fd, file, mode, flag)
       file = buf;
     }
 
-  int result;
   INTERNAL_SYSCALL_DECL (err);
 
-#ifdef __NR_lchmod
+# ifdef __NR_lchmod
   if (flag & AT_SYMLINK_NOFOLLOW)
     result = INTERNAL_SYSCALL (lchmod, err, 2, file, mode);
   else
-#endif
+# endif
     result = INTERNAL_SYSCALL (chmod, err, 2, file, mode);
 
   if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 0))
@@ -84,4 +102,5 @@ fchmodat (fd, file, mode, flag)
     }
 
   return result;
+#endif
 }