glibc/sysdeps/unix/sysv/linux/pthread_getaffinity.c
Adhemerval Zanella bc2eb9321e linux: Remove INTERNAL_SYSCALL_DECL
With all Linux ABIs using the expected Linux kABI to indicate
syscalls errors, the INTERNAL_SYSCALL_DECL is an empty declaration
on all ports.

This patch removes the 'err' argument on INTERNAL_SYSCALL* macro
and remove the INTERNAL_SYSCALL_DECL usage.

Checked with a build against all affected ABIs.
2020-02-14 21:12:45 -03:00

59 lines
2.0 KiB
C

/* Copyright (C) 2003-2020 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
<https://www.gnu.org/licenses/>. */
#include <errno.h>
#include <limits.h>
#include <pthreadP.h>
#include <string.h>
#include <sysdep.h>
#include <sys/param.h>
#include <sys/types.h>
#include <shlib-compat.h>
int
__pthread_getaffinity_new (pthread_t th, size_t cpusetsize, cpu_set_t *cpuset)
{
const struct pthread *pd = (const struct pthread *) th;
int res = INTERNAL_SYSCALL_CALL (sched_getaffinity, pd->tid,
MIN (INT_MAX, cpusetsize), cpuset);
if (INTERNAL_SYSCALL_ERROR_P (res))
return INTERNAL_SYSCALL_ERRNO (res);
/* Clean the rest of the memory the kernel didn't do. */
memset ((char *) cpuset + res, '\0', cpusetsize - res);
return 0;
}
strong_alias (__pthread_getaffinity_new, __pthread_getaffinity_np)
versioned_symbol (libpthread, __pthread_getaffinity_new,
pthread_getaffinity_np, GLIBC_2_3_4);
#if SHLIB_COMPAT (libpthread, GLIBC_2_3_3, GLIBC_2_3_4)
int
__pthread_getaffinity_old (pthread_t th, cpu_set_t *cpuset)
{
/* The old interface by default assumed a 1024 processor bitmap. */
return __pthread_getaffinity_new (th, 128, cpuset);
}
compat_symbol (libpthread, __pthread_getaffinity_old, pthread_getaffinity_np,
GLIBC_2_3_3);
#endif