From: Joseph Myers Date: Thu, 17 Jul 2014 17:53:52 +0000 (+0000) Subject: [PATCH 4/6] Split powerpc out of main Linux kernel-features.h. X-Git-Tag: upstream/2.30~7085 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=642530c1b4f933f78b56e0b4bfcde1872776f563;p=external%2Fglibc.git [PATCH 4/6] Split powerpc out of main Linux kernel-features.h. 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. --- diff --git a/ChangeLog b/ChangeLog index bd589fd..4175eba 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,18 @@ 2014-07-17 Joseph Myers + * 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. diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h index 0294c9b..7fdf55a 100644 --- a/sysdeps/unix/sysv/linux/kernel-features.h +++ b/sysdeps/unix/sysv/linux/kernel-features.h @@ -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 diff --git a/sysdeps/unix/sysv/linux/powerpc/kernel-features.h b/sysdeps/unix/sysv/linux/powerpc/kernel-features.h new file mode 100644 index 0000000..d8a98f1 --- /dev/null +++ b/sysdeps/unix/sysv/linux/powerpc/kernel-features.h @@ -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 + . */ + +/* 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 + +/* PowerPC64 IPC is always 64-bit and does not use __IPC_64. */ +#undef __ASSUME_IPC64