diff options
| author | Ulrich Drepper <drepper@redhat.com> | 2006-01-20 07:08:05 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2006-01-20 07:08:05 +0000 |
| commit | 7c65e9001b93d5d20046bc4d50fd10fff5f4adc2 (patch) | |
| tree | 38f65e2a20910e6d074fbcec137eb66853e70eaa /sysdeps/unix/sysv/linux/readlinkat.c | |
| parent | 93c04024a6b900b69bbe9a70de06ac23b8273787 (diff) | |
* 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/readlinkat.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/readlinkat.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/sysdeps/unix/sysv/linux/readlinkat.c b/sysdeps/unix/sysv/linux/readlinkat.c index 42c3877bd7..c2f21ee4ca 100644 --- a/sysdeps/unix/sysv/linux/readlinkat.c +++ b/sysdeps/unix/sysv/linux/readlinkat.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2005 Free Software Foundation, Inc. +/* Copyright (C) 2005, 2006 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -24,6 +24,7 @@ #include <string.h> #include <sysdep.h> #include <unistd.h> +#include <kernel-features.h> /* Read the contents of the symbolic link PATH relative to FD into no @@ -35,6 +36,24 @@ readlinkat (fd, path, buf, len) char *buf; size_t len; { + int result; + +#ifdef __NR_readlinkat +# ifndef __ASSUME_ATFCTS + if (__have_atfcts >= 0) +# endif + { + result = INLINE_SYSCALL (readlinkat, 4, fd, path, buf, len); +# ifndef __ASSUME_ATFCTS + if (result == -1 && errno == ENOSYS) + __have_atfcts = -1; + else +# endif + return result; + } +#endif + +#ifndef __ASSUME_ATFCTS char *pathbuf = NULL; if (fd != AT_FDCWD && path[0] != '/') @@ -57,7 +76,7 @@ readlinkat (fd, path, buf, len) INTERNAL_SYSCALL_DECL (err); - int result = INTERNAL_SYSCALL (readlink, err, 3, path, buf, len); + result = INTERNAL_SYSCALL (readlink, err, 3, path, buf, len); if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (result, err), 0)) { @@ -66,4 +85,5 @@ readlinkat (fd, path, buf, len) } return result; +#endif } |