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authorUlrich Drepper <drepper@redhat.com>2002-07-20 01:14:41 +0000
committerUlrich Drepper <drepper@redhat.com>2002-07-20 01:14:41 +0000
commit739d440d2a748be4b0139d4e5e0a566098abfcec (patch)
tree395d06a998290892d7d92568471adee8e1e4824f /include/errno.h
parent9df63767d4078fdaf90307f5aa153422f7ec0722 (diff)
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Update.
2002-07-19 Ulrich Drepper <drepper@redhat.com> * configure.in: Add test for __thread support in compiler. * config.h.in: Add HAVE___THREAD. * Makefile (headers): Remove errno.h, sys/errno.h, and bits/errno.h. * include/sys/errno.h: Moved to... * stdlib/sys/errno.h: ...here. New file. * stdlib/errno.h: New file. Moved from... * include/errno.h: ...here. Changed into an internal header defining libc-local things like __set_errno. * stdlib/Makefile (headers): Add errno.h, sys/errno.h, and bits/errno.h. * elf/dl-minimal.c: Include <tls.h>. Define errno as thread-local variable if USE_TLS && HAVE___THREAD. Don't define __errno_location either. * elf/rtld.c (_dl_start): Add code to initialize TLS for ld.so from... (_dl_start_final): ...here. Add code to initialize tls elements from bootstrap_map. * sysdeps/generic/errno-loc.c: Define errno as thread-local variable if USE_TLS && HAVE___THREAD. * sysdeps/generic/bits/errno.h: Remove __set_errno definition. * sysdeps/mach/hurd/bits/errno.h: Likewise. * sysdeps/standalone/arm/bits/errno.h: Likewise. * sysdeps/standalone/bits/errno.h: Likewise. * sysdeps/unix/bsd/bsd4.4/bits/errno.h: Likewise. * sysdeps/unix/sysv/aix/bits/errno.h: Likewise. * sysdeps/unix/sysv/hpux/bits/errno.h: Likewise. * sysdeps/unix/sysv/linux/bits/errno.h: Likewise. * sysdeps/unix/sysv/linux/hppa/bits/errno.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/errno.h: Likewise. * sysdeps/unix/sysv/sysv4/solaris2/bits/errno.h: Likewise. * sysdeps/i386/dl-machine.c (elf_machine_rel) [RTLD_BOOTSTRAP]: Don't use GL(dl_rtld_map), use map parameter. * sysdeps/sh/dl-machine.h (elf_machine_rela): Likewise. * sysdeps/unix/sysv/linux/i386/sysdep.S: Define errno in .tbss if USE_TLS && HAVE___THREAD. * sysdeps/unix/sysv/linux/i386/sysdep.h: Unify SETUP_PIC_REG definitions. If USE_TLS && HAVE___THREAD store errooor value using TLS code sequence. * sysdeps/unix/sysv/linux/i386/i686/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/getcwd.c: No real need to restore errno. * sysdeps/unix/sysv/linux/grantpt.c: Likewise. * sysdeps/unix/sysv/linux/internal_statvfs.c: Likewise. * sysdeps/unix/sysv/linux/msgctl.c: Likewise. * sysdeps/unix/sysv/linux/readv.c: Likewise. * sysdeps/unix/sysv/linux/writev.c: Likewise.
Diffstat (limited to 'include/errno.h')
-rw-r--r--include/errno.h76
1 files changed, 8 insertions, 68 deletions
diff --git a/include/errno.h b/include/errno.h
index 645a439..35f7051 100644
--- a/include/errno.h
+++ b/include/errno.h
@@ -1,73 +1,13 @@
-/* Copyright (C) 1991, 92, 93, 94, 95, 96, 97 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
+#include <stdlib/errno.h>
- 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.
+#ifdef _ERRNO_H
- 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, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-/*
- * ISO C99 Standard: 7.5 Errors <errno.h>
- */
-
-#ifndef _ERRNO_H
-
-/* The includer defined __need_Emath if he wants only the definitions
- of EDOM and ERANGE, and not everything else. */
-#ifndef __need_Emath
-#define _ERRNO_H 1
-#include <features.h>
+#if USE_TLS && HAVE___THREAD
+# undef errno
+extern __thread int errno;
+# define __set_errno(val) (errno = (val))
+#else
+# define __set_errno(val) (*__errno_location ()) = (val)
#endif
-__BEGIN_DECLS
-
-/* Get the error number constants from the system-specific file.
- This file will test __need_Emath and _ERRNO_H. */
-#include <bits/errno.h>
-#undef __need_Emath
-
-#ifdef _ERRNO_H
-
-/* Declare the `errno' variable, unless it's defined as a macro by
- bits/errno.h. This is the case in GNU, where it is a per-thread
- variable. This redeclaration using the macro still works, but it
- will be a function declaration without a prototype and may trigger
- a -Wstrict-prototypes warning. */
-#ifndef errno
-extern int errno;
-#endif
-
-#ifdef __USE_GNU
-
-/* The full and simple forms of the name with which the program was
- invoked. These variables are set up automatically at startup based on
- the value of ARGV[0] (this works only if you use GNU ld). */
-extern char *program_invocation_name, *program_invocation_short_name;
-#endif /* __USE_GNU */
-#endif /* _ERRNO_H */
-
-__END_DECLS
-
-#endif /* _ERRNO_H */
-
-/* The Hurd <bits/errno.h> defines `error_t' as an enumerated type so
- that printing `error_t' values in the debugger shows the names. We
- might need this definition sometimes even if this file was included
- before. */
-#if defined __USE_GNU || defined __need_error_t
-# ifndef __error_t_defined
-typedef int error_t;
-# define __error_t_defined 1
-# endif
-# undef __need_error_t
#endif