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80 lines
2.8 KiB
C
80 lines
2.8 KiB
C
/* Copyright (C) 2003-2025 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <fcntl.h>
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#include <sysdep.h>
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#include <shlib-compat.h>
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int __posix_fadvise64_l64 (int fd, off64_t offset, off64_t len, int advise);
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libc_hidden_proto (__posix_fadvise64_l64)
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/* Both arm and powerpc implements fadvise64_64 with last 'advise' argument
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just after 'fd' to avoid the requirement of implementing 7-arg syscalls.
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ARM also defines __NR_fadvise64_64 as __NR_arm_fadvise64_64.
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s390 implements fadvice64_64 using a specific struct with arguments
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packed inside. This is the only implementation handled in arch-specific
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code. */
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#ifndef __NR_fadvise64_64
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# define __NR_fadvise64_64 __NR_fadvise64
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#endif
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/* Advice the system about the expected behaviour of the application with
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respect to the file associated with FD. */
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int
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__posix_fadvise64_l64 (int fd, off64_t offset, off64_t len, int advise)
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{
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#ifdef __ASSUME_FADVISE64_64_6ARG
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int ret = INTERNAL_SYSCALL_CALL (fadvise64_64, fd, advise,
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SYSCALL_LL64 (offset), SYSCALL_LL64 (len));
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#else
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int ret = INTERNAL_SYSCALL_CALL (fadvise64_64, fd,
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__ALIGNMENT_ARG SYSCALL_LL64 (offset),
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SYSCALL_LL64 (len), advise);
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#endif
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if (!INTERNAL_SYSCALL_ERROR_P (ret))
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return 0;
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return INTERNAL_SYSCALL_ERRNO (ret);
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}
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/* The type of the len argument was changed from size_t to off_t in
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POSIX.1-2003 TC1. */
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#ifndef __OFF_T_MATCHES_OFF64_T
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# if SHLIB_COMPAT(libc, GLIBC_2_2, GLIBC_2_3_3)
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int __posix_fadvise64_l32 (int fd, off64_t offset, size_t len, int advise);
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int
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attribute_compat_text_section
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__posix_fadvise64_l32 (int fd, off64_t offset, size_t len, int advise)
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{
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return __posix_fadvise64_l64 (fd, offset, len, advise);
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}
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versioned_symbol (libc, __posix_fadvise64_l64, posix_fadvise64, GLIBC_2_3_3);
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compat_symbol (libc, __posix_fadvise64_l32, posix_fadvise64, GLIBC_2_2);
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# else
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weak_alias (__posix_fadvise64_l64, posix_fadvise64);
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# endif
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#else
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weak_alias (__posix_fadvise64_l64, posix_fadvise64);
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strong_alias (__posix_fadvise64_l64, posix_fadvise);
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#endif
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libc_hidden_def (__posix_fadvise64_l64)
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