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Reviewing (for all architectures, with a baseline kernel version of 2.6.32) the kernel support for features for which __ASSUME_* macros would be affected by a move to 2.6.32 as minimum kernel version showed up that __ASSUME_PSELECT was wrongly defined for MicroBlaze, despite the corresponding syscall table entry not being wired up in the MicroBlaze kernel. This patch makes the MicroBlaze kernel-features.h undefine __ASSUME_PSELECT. I'd also encourage wiring it up in the kernel (so you can then make this #undef conditional, and eventually obsolete once a recent-enough kernel is required). I suspect it wasn't wired up because of the mistaken comment in asm/unistd.h "obsolete -> sys_pselect7" (there is no such syscall as pselect7). [BZ #16642] * sysdeps/unix/sysv/linux/microblaze/kernel-features.h (__ASSUME_PSELECT): Undefine.
48 lines
1.7 KiB
C
48 lines
1.7 KiB
C
/* Copyright (C) 2011-2014 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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<http://www.gnu.org/licenses/>. */
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/* MicroBlaze uses socketcall. */
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#define __ASSUME_SOCKETCALL 1
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/* MicroBlaze glibc support starts with 2.6.30, guaranteeing many kernel features. */
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#define __ASSUME_UTIMES 1
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#define __ASSUME_O_CLOEXEC 1
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#define __ASSUME_SOCK_CLOEXEC 1
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#define __ASSUME_IN_NONBLOCK 1
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#define __ASSUME_PIPE2 1
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#define __ASSUME_EVENTFD2 1
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#define __ASSUME_SIGNALFD4 1
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#define __ASSUME_DUP3 1
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/* Support for the accept4 and recvmmsg syscalls was added in 2.6.33. */
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#if __LINUX_KERNEL_VERSION >= 0x020621
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# define __ASSUME_ACCEPT4_SYSCALL 1
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# define __ASSUME_RECVMMSG_SYSCALL 1
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#endif
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#define __ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL 1
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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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# define __ASSUME_SENDMMSG_SYSCALL 1
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#endif
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#include_next <kernel-features.h>
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/* The MicroBlaze kernel does not support the pselect6 syscall. */
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#undef __ASSUME_PSELECT
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