Sun Jun 4 22:14:11 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>

	* hurd/Makefile (sig): Added thread-self.
	* hurd/hurd.h: Declare hurd_thread_self.
	* hurd/thread-self.c: New file.

Thu Jun  1 12:17:52 1995  Roland McGrath  <roland@churchy.gnu.ai.mit.edu>

	* elf/rtld.c: Initialize RTLD_MAP.l_type.
	* elf/dl-reloc.c (_dl_relocate_object): Clear LAZY if relocating
 	the dynamic linker itself.

3 files changed, 32 insertions, 1 deletions

diff --git a/hurd/Makefile b/hurd/Makefile
index f5b36867a5..5e1622d87d 100644
--- a/hurd/Makefile
+++ b/hurd/Makefile
@@ -52,7 +52,8 @@ routines = hurdstartup hurdinit \
 	   ports-get ports-set hurdports hurdmsg \
 	   $(sig) $(dtable) hurdinline port-cleanup
 sig	= hurdsig hurdfault faultexc siginfo hurd-raise preempt-sig \
-	  trampoline longjmp-ts catch-exc exc2signal hurdkill sigunwind
+	  trampoline longjmp-ts catch-exc exc2signal hurdkill sigunwind \
+	  thread-self
 dtable	= dtable port2fd new-fd alloc-fd intern-fd \
 	  getdport openport \
 	  fd-close fd-read fd-write hurdioctl ctty-input ctty-output
diff --git a/hurd/hurd.h b/hurd/hurd.h
index 968910fffb..e0ba62eede 100644
--- a/hurd/hurd.h
+++ b/hurd/hurd.h
@@ -281,6 +281,10 @@ extern pid_t __task2pid (task_t task), task2pid (task_t task);
 
 extern task_t __pid2task (pid_t pid), pid2task (pid_t pid);
 
+/* Return the current thread's thread port.  This is a cheap operation (no
+   system call), but it relies on Hurd signal state being set up.  */
+extern thread_t hurd_thread_self (void);
+
 
 /* Return the io server port for file descriptor FD.
    This adds a Mach user reference to the returned port.
diff --git a/hurd/thread-self.c b/hurd/thread-self.c
new file mode 100644
index 0000000000..ff0992ce68
--- /dev/null
+++ b/hurd/thread-self.c
@@ -0,0 +1,26 @@
+/* Cheap function to get current thread from sigstate without a syscall.
+Copyright (C) 1995 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., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <hurd/signal.h>
+
+thread_t
+hurd_thread_self (void)
+{
+  return _hurd_self_sigstate ()->thread;
+}