From 03f77315182e8b976ca71ac70711654fed46bc3d Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Thu, 17 Jul 2014 17:52:58 +0000 Subject: [PATCH 3/6] Split sparc out of main Linux kernel-features.h. This patch splits sparc out of the main Linux kernel-features.h. Not tested. * sysdeps/unix/sysv/linux/sparc/kernel-features.h: New file. * sysdeps/unix/sysv/linux/kernel-features.h [__sparc__] (__ASSUME_SOCKETCALL): Do not define. (__ASSUME_SET_ROBUST_LIST): Define unconditionally. (__ASSUME_FUTEX_LOCK_PI): Likewise. [__sparc__] (__ASSUME_ACCEPT4_SYSCALL): Do not define. [__sparc__] (__ASSUME_ACCEPT4_SYSCALL_WITH_SOCKETCALL): Likewise. (__ASSUME_REQUEUE_PI): Define unconditionally. [__LINUX_KERNEL_VERSION >= 0x020621 && __sparc__] (__ASSUME_RECVMMSG_SYSCALL): Do not define. [__sparc__] (__ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL): Likewise. [__LINUX_KERNEL_VERSION >= 0x030000 && __sparc__] (__ASSUME_SENDMMSG_SYSCALL): Likewise. [__sparc__] (__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL): Likewise. --- sysdeps/unix/sysv/linux/kernel-features.h | 37 ++++++------------- sysdeps/unix/sysv/linux/sparc/kernel-features.h | 47 +++++++++++++++++++++++++ 2 files changed, 57 insertions(+), 27 deletions(-) create mode 100644 sysdeps/unix/sysv/linux/sparc/kernel-features.h (limited to 'sysdeps/unix') diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h index 5995fa0172..0294c9b06f 100644 --- a/sysdeps/unix/sysv/linux/kernel-features.h +++ b/sysdeps/unix/sysv/linux/kernel-features.h @@ -46,8 +46,7 @@ architectures. */ #if defined __powerpc__ \ || defined __s390__ \ - || defined __sh__ \ - || defined __sparc__ + || defined __sh__ # define __ASSUME_SOCKETCALL 1 #endif @@ -89,15 +88,11 @@ /* Support for inter-process robust mutexes was added in 2.6.17 (but some architectures lack futex_atomic_cmpxchg_inatomic in some configurations). */ -#if !(defined __sparc__ && !defined __arch64__ && !defined __sparc_v9__) -# define __ASSUME_SET_ROBUST_LIST 1 -#endif +#define __ASSUME_SET_ROBUST_LIST 1 /* Support for PI futexes was added in 2.6.18 (but some architectures lack futex_atomic_cmpxchg_inatomic in some configurations). */ -#if !(defined __sparc__ && !defined __arch64__ && !defined __sparc_v9__) -# define __ASSUME_FUTEX_LOCK_PI 1 -#endif +#define __ASSUME_FUTEX_LOCK_PI 1 /* Support for private futexes was added in 2.6.22. */ #define __ASSUME_PRIVATE_FUTEX 1 @@ -136,14 +131,10 @@ /* The accept4 syscall was added for x86_64 and SPARC in 2.6.28, and for PowerPC and SH in 2.6.37. */ -#if defined __sparc__ \ - || (__LINUX_KERNEL_VERSION >= 0x020625 \ - && (defined __powerpc__ || defined __sh__)) +#if (__LINUX_KERNEL_VERSION >= 0x020625 \ + && (defined __powerpc__ || defined __sh__)) # define __ASSUME_ACCEPT4_SYSCALL 1 #endif -#ifdef __sparc__ -# define __ASSUME_ACCEPT4_SYSCALL_WITH_SOCKETCALL 1 -#endif #if defined __ASSUME_ACCEPT4_SOCKETCALL || defined __ASSUME_ACCEPT4_SYSCALL # define __ASSUME_ACCEPT4 1 @@ -159,9 +150,7 @@ /* Support for FUTEX_*_REQUEUE_PI was added in 2.6.31 (but some architectures lack futex_atomic_cmpxchg_inatomic in some configurations). */ -#if !(defined __sparc__ && !defined __arch64__ && !defined __sparc_v9__) -# define __ASSUME_REQUEUE_PI 1 -#endif +#define __ASSUME_REQUEUE_PI 1 /* Support for recvmmsg functionality was added in 2.6.33. The macros defined correspond to those for accept4. */ @@ -171,15 +160,10 @@ /* 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 >= 0x020621 \ - && defined __sparc__) \ - || (__LINUX_KERNEL_VERSION >= 0x020625 \ - && (defined __powerpc__ || defined __sh__)) +#if (__LINUX_KERNEL_VERSION >= 0x020625 \ + && (defined __powerpc__ || defined __sh__)) # define __ASSUME_RECVMMSG_SYSCALL 1 #endif -#ifdef __sparc__ -# define __ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL 1 -#endif #if defined __ASSUME_RECVMMSG_SOCKETCALL || defined __ASSUME_RECVMMSG_SYSCALL # define __ASSUME_RECVMMSG 1 @@ -210,11 +194,10 @@ /* 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__ || defined __sparc__) + && (defined __powerpc__ || defined __sh__) # define __ASSUME_SENDMMSG_SYSCALL 1 #endif -#if defined __powerpc__ || defined __sh__ || defined __sparc__ +#if defined __powerpc__ || defined __sh__ # define __ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL 1 #endif diff --git a/sysdeps/unix/sysv/linux/sparc/kernel-features.h b/sysdeps/unix/sysv/linux/sparc/kernel-features.h new file mode 100644 index 0000000000..1754d36e03 --- /dev/null +++ b/sysdeps/unix/sysv/linux/sparc/kernel-features.h @@ -0,0 +1,47 @@ +/* Set flags signalling availability of kernel features based on given + kernel version number. SPARC 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 + . */ + +/* SPARC uses socketcall. */ +#define __ASSUME_SOCKETCALL 1 + +/* The accept4 syscall was added for SPARC in 2.6.28. */ +#define __ASSUME_ACCEPT4_SYSCALL 1 +#define __ASSUME_ACCEPT4_SYSCALL_WITH_SOCKETCALL 1 + +/* The recvmmsg syscall was added for SPARC in 2.6.33. */ +#if __LINUX_KERNEL_VERSION >= 0x020621 +# define __ASSUME_RECVMMSG_SYSCALL 1 +#endif +#define __ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL 1 + +/* The sendmmsg syscall was added for SPARC in 3.0. */ +#if __LINUX_KERNEL_VERSION >= 0x030000 +# define __ASSUME_SENDMMSG_SYSCALL 1 +#endif +#define __ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL 1 + +#include_next + +/* 32-bit SPARC kernels do not support + futex_atomic_cmpxchg_inatomic. */ +#if !defined __arch64__ && !defined __sparc_v9__ +# undef __ASSUME_FUTEX_LOCK_PI +# undef __ASSUME_REQUEUE_PI +# undef __ASSUME_SET_ROBUST_LIST +#endif -- cgit 1.4.1