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695d7d138e
This patch makes sysdeps/unix/sysv/linux code assume the prlimit64 syscall is always available, given the minimum of a 3.2 kernel. __ASSUME_PRLIMIT64, which in fact was no longer used, is removed. Code conditional on __NR_prlimit64 being defined is made unconditional. Fallback code for the case where prlimit64 produces an ENOSYS error is removed, substantially simplifying some functions. Tested for x86_64 and x86. * sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_PRLIMIT64): Remove macro. * sysdeps/unix/sysv/linux/getrlimit64.c (__getrlimit64): Assume prlimit64 is always available and does not give an ENOSYS error. * sysdeps/unix/sysv/linux/prlimit.c [__NR_prlimit64]: Make code unconditional. [!__NR_prlimit64]: Remove conditional code. * sysdeps/unix/sysv/linux/setrlimit.c (__setrlimit): Assume prlimit64 is always available and does not give an ENOSYS error. * sysdeps/unix/sysv/linux/setrlimit64.c (__setrlimit64): Likewise.
47 lines
1.7 KiB
C
47 lines
1.7 KiB
C
/* Linux setrlimit64 implementation (64 bits off_t).
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Copyright (C) 2010-2017 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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#include <errno.h>
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#include <sys/types.h>
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#include <shlib-compat.h>
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/* Add this redirection so the strong_alias for __RLIM_T_MATCHES_RLIM64_T
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linking setlimit64 to {__}setrlimit does not throw a type error. */
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#undef settrlimit
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#undef __sttrlimit
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#define setrlimit setrlimit_redirect
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#define __setrlimit __setrlimit_redirect
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#include <sys/resource.h>
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#undef setrlimit
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#undef __setrlimit
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/* Set the soft and hard limits for RESOURCE to *RLIMITS.
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Only the super-user can increase hard limits.
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Return 0 if successful, -1 if not (and sets errno). */
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int
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__setrlimit64 (enum __rlimit_resource resource, const struct rlimit64 *rlimits)
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{
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return INLINE_SYSCALL_CALL (prlimit64, 0, resource, rlimits, NULL);
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}
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weak_alias (__setrlimit64, setrlimit64)
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#if __RLIM_T_MATCHES_RLIM64_T
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strong_alias (__setrlimit64, __setrlimit)
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weak_alias (__setrlimit64, setrlimit)
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#endif
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