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a3fb6b6bc3
Since tile support has been removed from the Linux kernel for 4.17, this patch removes the (unmaintained) port to tilegx from glibc (the tilepro support having been previously removed). This reflects the general principle that a glibc port needs upstream support for the architecture in all the components it build-depends on (so binutils, GCC and the Linux kernel, for the normal case of a port supporting the Linux kernel but no other OS), in order to be maintainable. Apart from removal of sysdeps/tile and sysdeps/unix/sysv/linux/tile, there are updates to various comments referencing tile for which removal of those references seemed appropriate. The configuration is removed from README and from build-many-glibcs.py. contrib.texi keeps mention of removed contributions, but I updated Chris Metcalf's entry to reflect that he also contributed the non-removed support for the generic Linux kernel syscall interface. __ASSUME_FADVISE64_64_NO_ALIGN support is removed, as it was only used by tile. * sysdeps/tile: Remove. * sysdeps/unix/sysv/linux/tile: Likewise. * README (tilegx-*-linux-gnu): Remove from list of supported configurations. * manual/contrib.texi (Contributors): Mention Chris Metcalf's contribution of support for generic Linux kernel syscall interface. * scripts/build-many-glibcs.py (Context.add_all_configs): Remove tilegx configurations. (Config.install_linux_headers): Do not handle tile. * sysdeps/unix/sysv/linux/aarch64/ldsodefs.h: Do not mention Tile in comment. * sysdeps/unix/sysv/linux/nios2/Makefile: Likewise. * sysdeps/unix/sysv/linux/posix_fadvise.c: Likewise. [__ASSUME_FADVISE64_64_NO_ALIGN] (__ALIGNMENT_ARG): Remove conditional undefine and redefine. * sysdeps/unix/sysv/linux/posix_fadvise64.c: Do not mention Tile in comment. [__ASSUME_FADVISE64_64_NO_ALIGN] (__ALIGNMENT_ARG): Remove conditional undefine and redefine.
80 lines
2.8 KiB
C
80 lines
2.8 KiB
C
/* Copyright (C) 2003-2018 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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<http://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <fcntl.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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INTERNAL_SYSCALL_DECL (err);
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#ifdef __ASSUME_FADVISE64_64_6ARG
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int ret = INTERNAL_SYSCALL_CALL (fadvise64_64, err, 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, err, 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, err))
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return 0;
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return INTERNAL_SYSCALL_ERRNO (ret, err);
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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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