glibc/linuxthreads/errno.c

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/* Linuxthreads - a simple clone()-based implementation of Posix */
/* threads for Linux. */
/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */
/* */
/* This program is free software; you can redistribute it and/or */
/* modify it under the terms of the GNU Library General Public License */
/* as published by the Free Software Foundation; either version 2 */
/* of the License, or (at your option) any later version. */
/* */
/* This program 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 Library General Public License for more details. */
/* Define the location of errno for the remainder of the C library */
#include <errno.h>
#include <netdb.h>
#include <resolv.h>
#include <tls.h>
#include "pthread.h"
#include "internals.h"
#if !USE_TLS || !HAVE___THREAD
/* The definition in libc is sufficient if we use TLS. */
int *
__errno_location (void)
{
pthread_descr self = thread_self();
return THREAD_GETMEM (self, p_errnop);
}
int *
__h_errno_location (void)
{
pthread_descr self = thread_self();
return THREAD_GETMEM (self, p_h_errnop);
}
/* Return thread specific resolver state. */
struct __res_state *
__res_state (void)
{
pthread_descr self = thread_self();
return THREAD_GETMEM (self, p_resp);
}
#endif