about summary refs log tree commit diff
path: root/sysdeps/generic
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@redhat.com>2002-02-05 00:57:29 +0000
committerUlrich Drepper <drepper@redhat.com>2002-02-05 00:57:29 +0000
commit535b764df5ca722066c2db615190e6a70688c6a6 (patch)
tree06f6ba9853ac4e8f698fc1e3b0b4cb80ffd06bae /sysdeps/generic
parent67ddea92542c12f2099a89dbc58a045a65bb7771 (diff)
downloadglibc-535b764df5ca722066c2db615190e6a70688c6a6.tar.gz
glibc-535b764df5ca722066c2db615190e6a70688c6a6.tar.xz
glibc-535b764df5ca722066c2db615190e6a70688c6a6.zip
Update.
	* elf/rtld.c (_dl_start_final): Allocate TLS and initialize
	thread-pointer as soon as possible.
	* sysdeps/generic/ldsodefs.h: Include <tls.h>.  Define first TLS
	elements in rtld_global.
	* sysdeps/generic/tls.h: New file.
	* elf/Makefile (distribute): Add tls.h.
	* sysdeps/i386/dl-machine.h (elf_machine_rel): Add support for TLS
	relocations.  Not complete yet.

	* resolv/resolv.h: Allow user to define __need_res_state and only
	define __res_start structure then.
	* include/resolv.h: Only declare functions if _RESOLV_H_ is defined.
Diffstat (limited to 'sysdeps/generic')
-rw-r--r--sysdeps/generic/ldsodefs.h6
-rw-r--r--sysdeps/generic/tls.h22
2 files changed, 28 insertions, 0 deletions
diff --git a/sysdeps/generic/ldsodefs.h b/sysdeps/generic/ldsodefs.h
index 0f63799524..08785a818e 100644
--- a/sysdeps/generic/ldsodefs.h
+++ b/sysdeps/generic/ldsodefs.h
@@ -35,6 +35,7 @@
 #include <dl-lookupcfg.h>
 #include <bits/libc-lock.h>
 #include <hp-timing.h>
+#include <tls.h>
 
 __BEGIN_DECLS
 
@@ -286,6 +287,11 @@ struct rtld_global
   EXTERN hp_timing_t _dl_hp_timing_overhead;
 #endif
 
+#ifdef USE_TLS
+  /* Offset of the TLS block for ld.so from the thread-pointer.  */
+  EXTERN size_t _rtld_tlsoffset;
+#endif
+
   /* Name of the shared object to be profiled (if any).  */
   EXTERN const char *_dl_profile;
   /* Map of shared object to be profiled.  */
diff --git a/sysdeps/generic/tls.h b/sysdeps/generic/tls.h
new file mode 100644
index 0000000000..3820162ae8
--- /dev/null
+++ b/sysdeps/generic/tls.h
@@ -0,0 +1,22 @@
+/* Definition for thread-local data handling.  Generic version.
+   Copyright (C) 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 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+/* By default no TLS support is available.  This is signaled by the
+   absence of the symbol USE_TLS.  */
+#undef USE_TLS