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/***
This file was originally part of systemd.
Copyright 2010 Lennart Poettering
Copyright 2016 Zbigniew Jędrzejewski-Szmek
SPDX-License-Identifier: LGPL-2.1-or-later
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
/* Missing glibc definitions to access certain kernel APIs.
This file is last updated from systemd git:
commit 71e5200f94b22589922704aa4abdf95d4fe2e528
Author: Daniel Mack <daniel@zonque.org>
AuthorDate: Tue Oct 18 17:57:10 2016 +0200
Commit: Lennart Poettering <lennart@poettering.net>
CommitDate: Fri Sep 22 15:24:54 2017 +0200
Add abstraction model for BPF programs
*/
#include "libglnx-config.h"
#if !HAVE_DECL_RENAMEAT2
# ifndef __NR_renameat2
# if defined __x86_64__
# define __NR_renameat2 316
# elif defined __arm__
# define __NR_renameat2 382
# elif defined __aarch64__
# define __NR_renameat2 276
# elif defined _MIPS_SIM
# if _MIPS_SIM == _MIPS_SIM_ABI32
# define __NR_renameat2 4351
# endif
# if _MIPS_SIM == _MIPS_SIM_NABI32
# define __NR_renameat2 6315
# endif
# if _MIPS_SIM == _MIPS_SIM_ABI64
# define __NR_renameat2 5311
# endif
# elif defined __i386__
# define __NR_renameat2 353
# elif defined __powerpc64__
# define __NR_renameat2 357
# elif defined __s390__ || defined __s390x__
# define __NR_renameat2 347
# elif defined __arc__
# define __NR_renameat2 276
# else
# warning "__NR_renameat2 unknown for your architecture"
# endif
# endif
static inline int renameat2(int oldfd, const char *oldname, int newfd, const char *newname, unsigned flags) {
# ifdef __NR_renameat2
return syscall(__NR_renameat2, oldfd, oldname, newfd, newname, flags);
# else
errno = ENOSYS;
return -1;
# endif
}
#endif
#if !HAVE_DECL_MEMFD_CREATE
# ifndef __NR_memfd_create
# if defined __x86_64__
# define __NR_memfd_create 319
# elif defined __arm__
# define __NR_memfd_create 385
# elif defined __aarch64__
# define __NR_memfd_create 279
# elif defined __s390__
# define __NR_memfd_create 350
# elif defined _MIPS_SIM
# if _MIPS_SIM == _MIPS_SIM_ABI32
# define __NR_memfd_create 4354
# endif
# if _MIPS_SIM == _MIPS_SIM_NABI32
# define __NR_memfd_create 6318
# endif
# if _MIPS_SIM == _MIPS_SIM_ABI64
# define __NR_memfd_create 5314
# endif
# elif defined __i386__
# define __NR_memfd_create 356
# elif defined __arc__
# define __NR_memfd_create 279
# else
# warning "__NR_memfd_create unknown for your architecture"
# endif
# endif
static inline int memfd_create(const char *name, unsigned int flags) {
# ifdef __NR_memfd_create
return syscall(__NR_memfd_create, name, flags);
# else
errno = ENOSYS;
return -1;
# endif
}
#endif
/* Copied from systemd git:
commit 6bda23dd6aaba50cf8e3e6024248cf736cc443ca
Author: Yu Watanabe <watanabe.yu+github@gmail.com>
AuthorDate: Thu Jul 27 20:22:54 2017 +0900
Commit: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
CommitDate: Thu Jul 27 07:22:54 2017 -0400
*/
#if !HAVE_DECL_COPY_FILE_RANGE
# ifndef __NR_copy_file_range
# if defined(__x86_64__)
# define __NR_copy_file_range 326
# elif defined(__i386__)
# define __NR_copy_file_range 377
# elif defined __s390__
# define __NR_copy_file_range 375
# elif defined __arm__
# define __NR_copy_file_range 391
# elif defined __aarch64__
# define __NR_copy_file_range 285
# elif defined __powerpc__
# define __NR_copy_file_range 379
# elif defined __arc__
# define __NR_copy_file_range 285
# else
# warning "__NR_copy_file_range not defined for your architecture"
# endif
# endif
static inline ssize_t missing_copy_file_range(int fd_in, loff_t *off_in,
int fd_out, loff_t *off_out,
size_t len,
unsigned int flags) {
# ifdef __NR_copy_file_range
return syscall(__NR_copy_file_range, fd_in, off_in, fd_out, off_out, len, flags);
# else
errno = ENOSYS;
return -1;
# endif
}
# define copy_file_range missing_copy_file_range
#endif
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