mirror of
https://sourceware.org/git/glibc.git
synced 2025-10-28 23:34:53 +03:00
d95453ef5d
This patch adds an internal entry for __sched_getaffinity_new so that __sched_getaffinity_old calls __sched_getaffinity_new without going through PLT. [BZ #18822] * sysdeps/unix/sysv/linux/sched_getaffinity.c (__sched_getaffinity_new): Add libc_hidden_proto and libc_hidden_def.
66 lines
2.0 KiB
C
66 lines
2.0 KiB
C
/* Copyright (C) 2002-2015 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
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <errno.h>
|
|
#include <sched.h>
|
|
#include <string.h>
|
|
#include <sysdep.h>
|
|
#include <sys/param.h>
|
|
#include <sys/types.h>
|
|
#include <shlib-compat.h>
|
|
|
|
|
|
#ifdef __NR_sched_getaffinity
|
|
# if SHLIB_COMPAT (libc, GLIBC_2_3_3, GLIBC_2_3_4)
|
|
extern int __sched_getaffinity_new (pid_t, size_t, cpu_set_t *);
|
|
libc_hidden_proto (__sched_getaffinity_new)
|
|
# endif
|
|
|
|
int
|
|
__sched_getaffinity_new (pid_t pid, size_t cpusetsize, cpu_set_t *cpuset)
|
|
{
|
|
int res = INLINE_SYSCALL (sched_getaffinity, 3, pid,
|
|
MIN (INT_MAX, cpusetsize), cpuset);
|
|
if (res != -1)
|
|
{
|
|
/* Clean the rest of the memory the kernel didn't do. */
|
|
memset ((char *) cpuset + res, '\0', cpusetsize - res);
|
|
|
|
res = 0;
|
|
}
|
|
return res;
|
|
}
|
|
versioned_symbol (libc, __sched_getaffinity_new, sched_getaffinity,
|
|
GLIBC_2_3_4);
|
|
|
|
|
|
# if SHLIB_COMPAT (libc, GLIBC_2_3_3, GLIBC_2_3_4)
|
|
libc_hidden_def (__sched_getaffinity_new)
|
|
|
|
int
|
|
attribute_compat_text_section
|
|
__sched_getaffinity_old (pid_t pid, cpu_set_t *cpuset)
|
|
{
|
|
/* The old interface by default assumed a 1024 processor bitmap. */
|
|
return __sched_getaffinity_new (pid, 128, cpuset);
|
|
}
|
|
compat_symbol (libc, __sched_getaffinity_old, sched_getaffinity, GLIBC_2_3_3);
|
|
# endif
|
|
#else
|
|
# include <posix/sched_getaffinity.c>
|
|
#endif
|