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[PATCH 4/6] Split powerpc out of main Linux kernel-features.h.

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This patch splits powerpc out of the main Linux kernel-features.h.

Not tested.

	* sysdeps/unix/sysv/linux/powerpc/kernel-features.h: New file.
	* sysdeps/unix/sysv/linux/kernel-features.h [__powerpc__]
	(__ASSUME_SOCKETCALL): Do not define.
	(__ASSUME_IPC64): Define unconditionally.
	[__LINUX_KERNEL_VERSION >= 0x020625 && __powerpc__]
	(__ASSUME_ACCEPT4_SYSCALL): Do not define.
	[__LINUX_KERNEL_VERSION >= 0x020625 && __powerpc__]
	(__ASSUME_RECVMMSG_SYSCALL): Likewise.
	[__LINUX_KERNEL_VERSION >= 0x030000 && __powerpc__]
	(__ASSUME_SENDMMSG_SYSCALL): Likewise.
	[__powerpc__] (__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL):
	Likewise.
This commit is contained in:
Joseph Myers 2014-07-17 17:53:52 +00:00
parent 03f7731518
commit 642530c1b4
3 changed files with 61 additions and 13 deletions
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13
ChangeLog
View File

@ -1,5 +1,18 @@
2014-07-17 Joseph Myers <joseph@codesourcery.com>
* sysdeps/unix/sysv/linux/powerpc/kernel-features.h: New file.
* sysdeps/unix/sysv/linux/kernel-features.h [__powerpc__]
(__ASSUME_SOCKETCALL): Do not define.
(__ASSUME_IPC64): Define unconditionally.
[__LINUX_KERNEL_VERSION >= 0x020625 && __powerpc__]
(__ASSUME_ACCEPT4_SYSCALL): Do not define.
[__LINUX_KERNEL_VERSION >= 0x020625 && __powerpc__]
(__ASSUME_RECVMMSG_SYSCALL): Likewise.
[__LINUX_KERNEL_VERSION >= 0x030000 && __powerpc__]
(__ASSUME_SENDMMSG_SYSCALL): Likewise.
[__powerpc__] (__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL):
Likewise.
* sysdeps/unix/sysv/linux/sparc/kernel-features.h: New file.
* sysdeps/unix/sysv/linux/kernel-features.h [__sparc__]
(__ASSUME_SOCKETCALL): Do not define.

19
sysdeps/unix/sysv/linux/kernel-features.h
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@ -44,18 +44,14 @@
socket-related operations, via a socket.S file in glibc, instead of
separate syscalls. __ASSUME_SOCKETCALL is defined for such
architectures. */
#if defined __powerpc__ \
|| defined __s390__ \
|| defined __sh__
#if defined __s390__ || defined __sh__
# define __ASSUME_SOCKETCALL 1
#endif
/* Linux 2.3.39 introduced IPC64. Except for powerpc. Linux 2.4.0 on
PPC introduced a correct IPC64. But PowerPC64 does not support a
separate 64-bit syscall, already 64-bit. */
#ifndef __powerpc64__
# define __ASSUME_IPC64 1
#endif
#define __ASSUME_IPC64 1
/* The changed st_ino field appeared in 2.4.0-test6. However, SH is lame,
and still does not have a 64-bit inode field. */
@ -131,8 +127,7 @@
/* The accept4 syscall was added for x86_64 and SPARC in 2.6.28, and
for PowerPC and SH in 2.6.37. */
#if (__LINUX_KERNEL_VERSION >= 0x020625 \
&& (defined __powerpc__ || defined __sh__))
#if __LINUX_KERNEL_VERSION >= 0x020625 && defined __sh__
# define __ASSUME_ACCEPT4_SYSCALL 1
#endif
@ -160,8 +155,7 @@
/* The recvmmsg syscall was added for i386, x86_64 and SPARC in
2.6.33, and for PowerPC and SH in 2.6.37. */
#if (__LINUX_KERNEL_VERSION >= 0x020625 \
&& (defined __powerpc__ || defined __sh__))
#if __LINUX_KERNEL_VERSION >= 0x020625 && defined __sh__
# define __ASSUME_RECVMMSG_SYSCALL 1
#endif
@ -193,11 +187,10 @@
/* The sendmmsg syscall was added for i386, x86_64, PowerPC, SH and
SPARC in 3.0. */
#if __LINUX_KERNEL_VERSION >= 0x030000 \
&& (defined __powerpc__ || defined __sh__)
#if __LINUX_KERNEL_VERSION >= 0x030000 && defined __sh__
# define __ASSUME_SENDMMSG_SYSCALL 1
#endif
#if defined __powerpc__ || defined __sh__
#ifdef __sh__
# define __ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL 1
#endif

42
sysdeps/unix/sysv/linux/powerpc/kernel-features.h Normal file
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@ -0,0 +1,42 @@
/* Set flags signalling availability of kernel features based on given
kernel version number. PowerPC version.
Copyright (C) 1999-2014 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
/* The accept4 syscall was added for PowerPC in 2.6.37. */
#if __LINUX_KERNEL_VERSION >= 0x020625
# define __ASSUME_ACCEPT4_SYSCALL 1
#endif
/* The recvmmsg syscall was added for PowerPC in 2.6.37. */
#if __LINUX_KERNEL_VERSION >= 0x020625
# define __ASSUME_RECVMMSG_SYSCALL 1
#endif
/* The sendmmsg syscall was added for PowerPC in 3.0. */
#if __LINUX_KERNEL_VERSION >= 0x030000
# define __ASSUME_SENDMMSG_SYSCALL 1
#endif
#define __ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL 1
#include_next <kernel-features.h>
/* PowerPC64 IPC is always 64-bit and does not use __IPC_64. */
#undef __ASSUME_IPC64