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Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/pthread_setaffinity.c')
-rw-r--r--nptl/sysdeps/unix/sysv/linux/pthread_setaffinity.c104
1 files changed, 0 insertions, 104 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/pthread_setaffinity.c b/nptl/sysdeps/unix/sysv/linux/pthread_setaffinity.c
deleted file mode 100644
index 874cf4b578..0000000000
--- a/nptl/sysdeps/unix/sysv/linux/pthread_setaffinity.c
+++ /dev/null
@@ -1,104 +0,0 @@
-/* Copyright (C) 2003-2014 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
-
- 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/>. */
-
-#include <alloca.h>
-#include <errno.h>
-#include <pthreadP.h>
-#include <sysdep.h>
-#include <sys/types.h>
-#include <shlib-compat.h>
-
-
-size_t __kernel_cpumask_size attribute_hidden;
-
-
-/* Determine the current affinity. As a side affect we learn
- about the size of the cpumask_t in the kernel. */
-int
-__determine_cpumask_size (pid_t tid)
-{
- INTERNAL_SYSCALL_DECL (err);
- int res;
-
- size_t psize = 128;
- void *p = alloca (psize);
-
- while (res = INTERNAL_SYSCALL (sched_getaffinity, err, 3, tid, psize, p),
- INTERNAL_SYSCALL_ERROR_P (res, err)
- && INTERNAL_SYSCALL_ERRNO (res, err) == EINVAL)
- p = extend_alloca (p, psize, 2 * psize);
-
- if (res == 0 || INTERNAL_SYSCALL_ERROR_P (res, err))
- return INTERNAL_SYSCALL_ERRNO (res, err);
-
- __kernel_cpumask_size = res;
-
- return 0;
-}
-
-
-int
-__pthread_setaffinity_new (pthread_t th, size_t cpusetsize,
- const cpu_set_t *cpuset)
-{
- const struct pthread *pd = (const struct pthread *) th;
-
- INTERNAL_SYSCALL_DECL (err);
- int res;
-
- if (__glibc_unlikely (__kernel_cpumask_size == 0))
- {
- res = __determine_cpumask_size (pd->tid);
- if (res != 0)
- return res;
- }
-
- /* We now know the size of the kernel cpumask_t. Make sure the user
- does not request to set a bit beyond that. */
- for (size_t cnt = __kernel_cpumask_size; cnt < cpusetsize; ++cnt)
- if (((char *) cpuset)[cnt] != '\0')
- /* Found a nonzero byte. This means the user request cannot be
- fulfilled. */
- return EINVAL;
-
- res = INTERNAL_SYSCALL (sched_setaffinity, err, 3, pd->tid, cpusetsize,
- cpuset);
-
-#ifdef RESET_VGETCPU_CACHE
- if (!INTERNAL_SYSCALL_ERROR_P (res, err))
- RESET_VGETCPU_CACHE ();
-#endif
-
- return (INTERNAL_SYSCALL_ERROR_P (res, err)
- ? INTERNAL_SYSCALL_ERRNO (res, err)
- : 0);
-}
-versioned_symbol (libpthread, __pthread_setaffinity_new,
- pthread_setaffinity_np, GLIBC_2_3_4);
-
-
-#if SHLIB_COMPAT (libpthread, GLIBC_2_3_3, GLIBC_2_3_4)
-int
-__pthread_setaffinity_old (pthread_t th, cpu_set_t *cpuset)
-{
- /* The old interface by default assumed a 1024 processor bitmap. */
- return __pthread_setaffinity_new (th, 128, cpuset);
-}
-compat_symbol (libpthread, __pthread_setaffinity_old, pthread_setaffinity_np,
- GLIBC_2_3_3);
-#endif