diff options
Diffstat (limited to 'libc/sysdeps/linux/common/ftruncate64.c')
| -rw-r--r-- | libc/sysdeps/linux/common/ftruncate64.c | 64 |
1 files changed, 33 insertions, 31 deletions
diff --git a/libc/sysdeps/linux/common/ftruncate64.c b/libc/sysdeps/linux/common/ftruncate64.c index 5516f3b6f..ff732d432 100644 --- a/libc/sysdeps/linux/common/ftruncate64.c +++ b/libc/sysdeps/linux/common/ftruncate64.c @@ -1,67 +1,68 @@ /* + * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org> + * + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + * * ftruncate64 syscall. Copes with 64 bit and 32 bit machines * and on 32 bit machines this sends things into the kernel as * two 32-bit arguments (high and low 32 bits of length) that * are ordered based on endianess. It turns out endian.h has * just the macro we need to order things, __LONG_LONG_PAIR. - * - * Copyright (C) 2002 Erik Andersen <andersen@codepoet.org> - * - * This file is subject to the terms and conditions of the GNU - * Lesser General Public License. See the file COPYING.LIB in - * the main directory of this archive for more details. */ #include <features.h> -#include <unistd.h> -#include <errno.h> -#include <endian.h> -#include <stdint.h> -#include <sys/types.h> -#include <sys/syscall.h> -#if defined __UCLIBC_HAS_LFS__ +#ifdef __UCLIBC_HAS_LFS__ + +# include <unistd.h> +# include <errno.h> +# include <endian.h> +# include <stdint.h> +# include <sys/types.h> +# include <sys/syscall.h> + +libc_hidden_proto(ftruncate64) -#if defined __NR_ftruncate64 +# ifdef __NR_ftruncate64 -#if __WORDSIZE == 64 +# if __WORDSIZE == 64 /* For a 64 bit machine, life is simple... */ _syscall2(int, ftruncate64, int, fd, __off64_t, length); -#elif __WORDSIZE == 32 +# elif __WORDSIZE == 32 -#ifndef INLINE_SYSCALL -#define INLINE_SYSCALL(name, nr, args...) __syscall_ftruncate64 (args) -#define __NR___syscall_ftruncate64 __NR_ftruncate64 -#if defined(__powerpc__) || defined(__mips__) +# ifndef INLINE_SYSCALL +# define INLINE_SYSCALL(name, nr, args...) __syscall_ftruncate64 (args) +# define __NR___syscall_ftruncate64 __NR_ftruncate64 +# if defined(__powerpc__) || defined(__mips__) static inline _syscall4(int, __syscall_ftruncate64, int, fd, uint32_t, pad, unsigned long, high_length, unsigned long, low_length); -#else +# else static inline _syscall3(int, __syscall_ftruncate64, int, fd, unsigned long, high_length, unsigned long, low_length); -#endif -#endif +# endif +# endif /* The exported ftruncate64 function. */ int ftruncate64 (int fd, __off64_t length) { uint32_t low = length & 0xffffffff; uint32_t high = length >> 32; -#if defined(__powerpc__) || defined(__mips__) +# if defined(__powerpc__) || defined(__mips__) return INLINE_SYSCALL(ftruncate64, 4, fd, 0, __LONG_LONG_PAIR (high, low)); -#else +# else return INLINE_SYSCALL(ftruncate64, 3, fd, __LONG_LONG_PAIR (high, low)); -#endif +# endif } -#else /* __WORDSIZE */ -#error Your machine is not 64 bit or 32 bit, I am dazed and confused. -#endif /* __WORDSIZE */ +# else /* __WORDSIZE */ +# error Your machine is not 64 bit or 32 bit, I am dazed and confused. +# endif /* __WORDSIZE */ -#else /* __NR_ftruncate64 */ +# else /* __NR_ftruncate64 */ libc_hidden_proto(ftruncate) @@ -78,6 +79,7 @@ int ftruncate64 (int fd, __off64_t length) return -1; } -#endif /* __NR_ftruncate64 */ +# endif /* __NR_ftruncate64 */ +libc_hidden_def(ftruncate64) #endif /* __UCLIBC_HAS_LFS__ */ |