glibc/linuxthreads/no-tsd.c
Roland McGrath fc10bc8d32 * resolv/resolv.h (_res): Define macro unconditionally.
[! _LIBC_REENTRANT] (_res): Move this conditional decl to ...
	* include/resolv.h: ... here.
	[USE_TLS && HAVE___THREAD] (_res): #undef it and declare
	as a __thread variable.
	* resolv/res_libc.c [USE_TLS && HAVE___THREAD] (_res): Define it as
	a __thread variable instead of a global.
	* resolv/res_data.c [_LIBC]: Don't #undef _res.

	* include/errno.h: Include <tls.h> to make sure USE_TLS defined by the
	time we test it.

	* intl/loadmsgcat.c [__GNUC__]: #undef alloca before defining it.

	* malloc/malloc.c [_LIBC]: Include <string.h> instead of using local
	decls of memset and memcpy.

	* sysdeps/generic/sysdep.h (END): Conditionalize on [__ASSEMBLER__].
	* sysdeps/unix/sysv/linux/i386/sysdep.h (L): Likewise.

	* elf/dl-load.c (_dl_map_object_from_fd): Comment fix.

	* sysdeps/generic/bits/libc-tsd.h [USE_TLS && HAVE___THREAD]
	(__libc_tsd_define): Define using __thread.

	* sunrpc/rpc_thread.c: Use __libc_tsd_define.
	(__rpc_thread_variables): Use __libc_tsd_get.
	(__rpc_thread_destroy): Use __libc_tsd_get instead of calling
	__rpc_thread_variables, which might allocate what we're about to free.

	* inet/herrno.c [USE_TLS && HAVE___THREAD] (h_errno): Define as a
	thread-local variable.
	* resolv/netdb.h (h_errno): Define macro unconditionally.
	[_LIBC] (__set_h_errno): Macro moved to ...
	* include/netdb.h: ... here.
	[USE_TLS && HAVE___THREAD] (h_errno): Declare __thread variable.
	[USE_TLS && HAVE___THREAD] (__set_h_errno): Define using that.
	[! _LIBC_REENTRANT]: #undef h_errno here.

	* include/errno.h: Protect from multiple inclusion.

	* misc/sys/select.h (__NFDBITS, __FDELT, __FDMASK): #undef these
	before defining them, since Linux's <linux/posix_types.h> might have
	defined them.

2002-08-01  Roland McGrath  <roland@redhat.com>
2002-07-31  Roland McGrath  <roland@redhat.com>
2002-07-31  Roland McGrath  <roland@redhat.com>
2002-08-02 03:37:41 +00:00

39 lines
1.6 KiB
C

/* libc-internal interface for thread-specific data.
Copyright (C) 1998,99,2002 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <sys/cdefs.h> /* for __const */
#include <bits/libc-tsd.h>
#if !(USE_TLS && HAVE___THREAD)
/* This file provides uinitialized (common) definitions for the
hooks used internally by libc to access thread-specific data.
When -lpthread is used, it provides initialized definitions for these
variables (in specific.c), which override these uninitialized definitions.
If -lpthread is not used, these uninitialized variables default to zero,
which the __libc_tsd_* macros check for. */
void *(*__libc_internal_tsd_get) (enum __libc_tsd_key_t);
int (*__libc_internal_tsd_set) (enum __libc_tsd_key_t,
__const void *);
#endif /* !(USE_TLS && HAVE___THREAD) */