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06436acf81
This patch refactor the internal sysvipc in two main points:
1. Add a new __ASSUME_SYSVIPC_DEFAULT_IPC_64 to infer the __IPC_64
value to be used along either the multiplexed __NR_ipc or wired-up
syscall. The defaut value assumed for __IPC_64 is also changed
from 0x100 to 0x0, aligning with Linux generic UAPI. The idea
is to simplify the Linux 5.1 wire-up for sysvipc syscalls for
some 32-bit ABIs (which expectes __IPC_64 being 0x0) and simplify
new ports (which will no longer need to add ipc_priv.h).
2. It also removes some duplicated internal definition used on compat
sysvipc symbols defined at ipc_priv.h (more specifically the
__old_ipc_perm, SEMCTL_ARG_ADDRESS, MSGRCV_ARGS, and
SEMTIMEDOP_IPC_ARGS). The idea is also to make it simpler to enable
the new wire-up sysvipc syscall provided by Linux v5.1.
There is no semantic change expected on any port. Checked with a build
against all affected ABIs.
Reviewed-by: Florian Weimer <fweimer@redhat.com>
76 lines
2.3 KiB
C
76 lines
2.3 KiB
C
/* Copyright (C) 2011-2019 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 <endian.h>
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/* All supported kernel versions for MicroBlaze have these syscalls. */
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#define __ASSUME_SOCKET_SYSCALL 1
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#define __ASSUME_BIND_SYSCALL 1
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#define __ASSUME_CONNECT_SYSCALL 1
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#define __ASSUME_LISTEN_SYSCALL 1
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#define __ASSUME_GETSOCKNAME_SYSCALL 1
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#define __ASSUME_GETPEERNAME_SYSCALL 1
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#define __ASSUME_SOCKETPAIR_SYSCALL 1
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#define __ASSUME_SEND_SYSCALL 1
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#define __ASSUME_RECV_SYSCALL 1
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#define __ASSUME_SHUTDOWN_SYSCALL 1
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#define __ASSUME_GETSOCKOPT_SYSCALL 1
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#define __ASSUME_SETSOCKOPT_SYSCALL 1
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#include_next <kernel-features.h>
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/* Support for the pselect6, preadv and pwritev syscalls was added in
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3.15. */
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#if __LINUX_KERNEL_VERSION < 0x030f00
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# undef __ASSUME_PSELECT
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# undef __ASSUME_PREADV
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# undef __ASSUME_PWRITEV
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#endif
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/* Support for the sendmmsg syscall was added in 3.3. */
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#if __LINUX_KERNEL_VERSION < 0x030300
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# undef __ASSUME_SENDMMSG_SYSCALL
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#endif
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/* Support for the renameat2 syscall was added in 3.17. */
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#if __LINUX_KERNEL_VERSION < 0x031100
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# undef __ASSUME_RENAMEAT2
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#endif
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/* Support for the execveat syscall was added in 4.0. */
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#if __LINUX_KERNEL_VERSION < 0x040000
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# undef __ASSUME_EXECVEAT
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#endif
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/* Support for the mlock2 syscall was added in 4.7. */
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#if __LINUX_KERNEL_VERSION < 0x040700
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# undef __ASSUME_MLOCK2
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#endif
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/* Support for statx was added in kernel 4.12. */
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#if __LINUX_KERNEL_VERSION < 0X040C00
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# undef __ASSUME_STATX
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#endif
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#undef __ASSUME_CLONE_DEFAULT
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#define __ASSUME_CLONE_BACKWARDS3
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#if __BYTE_ORDER == __BIG_ENDIAN
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# define __ASSUME_SYSVIPC_BROKEN_MODE_T
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#endif
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#undef __ASSUME_SYSVIPC_DEFAULT_IPC_64
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