diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/pwrite64.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/pwrite64.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/sysdeps/unix/sysv/linux/pwrite64.c b/sysdeps/unix/sysv/linux/pwrite64.c index b6ebba154b..cc92de1d76 100644 --- a/sysdeps/unix/sysv/linux/pwrite64.c +++ b/sysdeps/unix/sysv/linux/pwrite64.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1997, 1998 Free Software Foundation, Inc. +/* Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. @@ -23,13 +23,17 @@ #include <sysdep.h> #include <sys/syscall.h> -#ifdef __NR_pwrite +#include "kernel-features.h" + +#if defined __NR_pwrite || __ASSUME_PWRITE_SYSCALL > 0 extern ssize_t __syscall_pwrite64 (int fd, const void *buf, size_t count, off_t offset_hi, off_t offset_lo); +# if __ASSUME_PWRITE_SYSCALL == 0 static ssize_t __emulate_pwrite64 (int fd, const void *buf, size_t count, off64_t offset) internal_function; +# endif ssize_t @@ -44,16 +48,21 @@ __pwrite64 (fd, buf, count, offset) /* First try the syscall. */ result = INLINE_SYSCALL (pwrite, 5, fd, buf, count, (off_t) (offset >> 32), (off_t) (offset & 0xffffffff)); +# if __ASSUME_PWRITE_SYSCALL == 0 if (result == -1 && errno == ENOSYS) /* No system call available. Use the emulation. */ result = __emulate_pwrite64 (fd, buf, count, offset); +# endif return result; } weak_alias (__pwrite64, pwrite64) -#define __pwrite64(fd, buf, count, offset) \ +# define __pwrite64(fd, buf, count, offset) \ static internal_function __emulate_pwrite64 (fd, buf, count, offset) #endif -#include <sysdeps/posix/pwrite64.c> + +#if __ASSUME_PWRITE_SYSCALL == 0 +# include <sysdeps/posix/pwrite64.c> +#endif |