63719cf1e3
On current minimum supported kernels, the SysV IPC on Linux is provided
by either the ipc syscalls or correspondent wire syscalls. Also, for
architectures that supports wire syscalls all syscalls are supported
in a set (msgct, msgrcv, msgsnd, msgget, semctl, semget, semop, semtimedop,
shmctl, shmat, shmget, shmdt).
The architectures that only supports ipc syscall are:
- i386, m68k, microblaze, mips32, powerpc (powerpc32, powerpc64, and
powerpc64le), s390 (32 and 64 bits), sh, sparc32, and sparc64.
And the architectures that only supports wired syscalls are:
- aarch64, alpha, hppa, ia64, mips64, mips64n32, nios2, tile
(tilepro, tilegx, and tilegx64), and x86_64
Also arm is the only one that supports both wire syscalls and the
ipc, although the ipc one is deprecated.
This patch adds a new define, __ASSUME_DIRECT_SYSVIPC_SYSCALL, that wired
syscalls are supported on the system and the general idea is to use
it where possible.
I also checked the syscall table for all architectures on Linux 4.9
and there is no change on described support for Linux 2.6.32/3.2.
* sysdeps/unix/sysv/linux/kernel-features.h
(__ASSUME_DIRECT_SYSVIPC_SYSCALL): New define.
* sysdeps/unix/sysv/linux/i386/kernel-features.h
(__ASSUME_DIRECT_SYSVIPC_SYSCALL): Undef.
* sysdeps/unix/sysv/linux/m68k/kernel-features.h
(__ASSUME_DIRECT_SYSVIPC_SYSCALL): Likewise.
* sysdeps/unix/sysv/linux/mips/kernel-features.h
(__ASSUME_DIRECT_SYSVIPC_SYSCALL): Likewise.
* sysdeps/unix/sysv/linux/powerpc/kernel-features.h
(__ASSUME_DIRECT_SYSVIPC_SYSCALL): Likewise.
* sysdeps/unix/sysv/linux/s390/kernel-features.h
(__ASSUME_DIRECT_SYSVIPC_SYSCALL): Likewise.
* sysdeps/unix/sysv/linux/sh/kernel-features.h
(__ASSUME_DIRECT_SYSVIPC_SYSCALL): Likewise.
* sysdeps/unix/sysv/linux/sparc/kernel-features.h
(__ASSUME_DIRECT_SYSVIPC_SYSCALL): Likewise.
58 lines
2.1 KiB
C
58 lines
2.1 KiB
C
/* Set flags signalling availability of kernel features based on given
|
|
kernel version number. PowerPC version.
|
|
Copyright (C) 1999-2016 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library 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.
|
|
|
|
The GNU C Library 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 the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
/* PowerPC uses socketcall. */
|
|
#define __ASSUME_SOCKETCALL 1
|
|
|
|
/* New syscalls added for PowerPC in 2.6.37. */
|
|
#define __ASSUME_SOCKET_SYSCALL 1
|
|
#define __ASSUME_BIND_SYSCALL 1
|
|
#define __ASSUME_CONNECT_SYSCALL 1
|
|
#define __ASSUME_LISTEN_SYSCALL 1
|
|
#define __ASSUME_ACCEPT_SYSCALL 1
|
|
#define __ASSUME_GETSOCKNAME_SYSCALL 1
|
|
#define __ASSUME_GETPEERNAME_SYSCALL 1
|
|
#define __ASSUME_SOCKETPAIR_SYSCALL 1
|
|
#define __ASSUME_SEND_SYSCALL 1
|
|
#define __ASSUME_SENDTO_SYSCALL 1
|
|
#define __ASSUME_RECV_SYSCALL 1
|
|
#define __ASSUME_RECVFROM_SYSCALL 1
|
|
#define __ASSUME_SHUTDOWN_SYSCALL 1
|
|
#define __ASSUME_GETSOCKOPT_SYSCALL 1
|
|
#define __ASSUME_SETSOCKOPT_SYSCALL 1
|
|
|
|
/* The sendmmsg syscall was added for PowerPC in 3.0. */
|
|
#define __ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL 1
|
|
|
|
/* Define this if your 32-bit syscall API requires 64-bit register
|
|
pairs to start with an even-number register. */
|
|
#ifndef __powerpc64__
|
|
# define __ASSUME_ALIGNED_REGISTER_PAIRS 1
|
|
#endif
|
|
|
|
/* powerpc compat fadvise64_64 reorganize the syscall argument. */
|
|
#ifndef __powerpc64__
|
|
# define __ASSUME_FADVISE64_64_6ARG 1
|
|
#endif
|
|
|
|
#include_next <kernel-features.h>
|
|
|
|
/* powerpc only supports ipc syscall. */
|
|
#undef __ASSUME_DIRECT_SYSVIPC_SYSCALLS
|