RFA: update Threads section of manual

[Tom Tromey <tromey at redhat dot com>]

This needs a doc review.

The `Threads' node in the manual has a lot of duplicate text and some
out-of-date examples.  Also the `all' argument to `thread apply' is
erroneously put into @var{}.

This patch fixes the problems.

Ok?

Tom

2011-01-11  Tom Tromey  <tromey@redhat.com>

	* gdb.texinfo (Threads): Remove duplicate text.  Update examples.
	Fix "thread apply" text.

Index: gdb.texinfo
===================================================================
RCS file: /cvs/src/src/gdb/doc/gdb.texinfo,v
retrieving revision 1.788
diff -u -r1.788 gdb.texinfo
--- gdb.texinfo	11 Jan 2011 19:23:03 -0000	1.788
+++ gdb.texinfo	11 Jan 2011 21:07:47 -0000
@@ -2731,70 +2731,13 @@
 
 @smallexample
 (@value{GDBP}) info threads
-  3 process 35 thread 27  0x34e5 in sigpause ()
-  2 process 35 thread 23  0x34e5 in sigpause ()
-* 1 process 35 thread 13  main (argc=1, argv=0x7ffffff8)
+  Id   Target Id         Frame
+  3    process 35 thread 27  0x34e5 in sigpause ()
+  2    process 35 thread 23  0x34e5 in sigpause ()
+* 1    process 35 thread 13  main (argc=1, argv=0x7ffffff8)
     at threadtest.c:68
 @end smallexample
 
-On HP-UX systems:
-
-@cindex debugging multithreaded programs (on HP-UX)
-@cindex thread identifier (GDB), on HP-UX
-For debugging purposes, @value{GDBN} associates its own thread
-number---a small integer assigned in thread-creation order---with each
-thread in your program.
-
-@cindex @code{New} @var{systag} message, on HP-UX
-@cindex thread identifier (system), on HP-UX
-@c FIXME-implementors!! It would be more helpful if the [New...] message
-@c included GDB's numeric thread handle, so you could just go to that
-@c thread without first checking `info threads'.
-Whenever @value{GDBN} detects a new thread in your program, it displays
-both @value{GDBN}'s thread number and the target system's identification for the thread with a message in the
-form @samp{[New @var{systag}]}.  @var{systag} is a thread identifier
-whose form varies depending on the particular system.  For example, on
-HP-UX, you see
-
-@smallexample
-[New thread 2 (system thread 26594)]
-@end smallexample
-
-@noindent
-when @value{GDBN} notices a new thread.
-
-@table @code
-@kindex info threads (HP-UX)
-@item info threads
-Display a summary of all threads currently in your
-program.  @value{GDBN} displays for each thread (in this order):
-
-@enumerate
-@item the thread number assigned by @value{GDBN}
-
-@item the target system's thread identifier (@var{systag})
-
-@item the current stack frame summary for that thread
-@end enumerate
-
-@noindent
-An asterisk @samp{*} to the left of the @value{GDBN} thread number
-indicates the current thread.
-
-For example,
-@end table
-@c end table here to get a little more width for example
-
-@smallexample
-(@value{GDBP}) info threads
-    * 3 system thread 26607  worker (wptr=0x7b09c318 "@@") \@*
-                               at quicksort.c:137
-      2 system thread 26606  0x7b0030d8 in __ksleep () \@*
-                               from /usr/lib/libc.2
-      1 system thread 27905  0x7b003498 in _brk () \@*
-                               from /usr/lib/libc.2
-@end smallexample
-
 On Solaris, you can display more information about user threads with a
 Solaris-specific command:
 
@@ -2815,10 +2758,10 @@
 you selected, and its current stack frame summary:
 
 @smallexample
-@c FIXME!! This example made up; find a @value{GDBN} w/threads and get real one
 (@value{GDBP}) thread 2
-[Switching to process 35 thread 23]
-0x34e5 in sigpause ()
+[Switching to thread 2 (Thread 0xb7fdab70 (LWP 12747))]
+#0  some_function (ignore=0x0) at example.c:8
+8	    printf ("hello\n");
 @end smallexample
 
 @noindent
@@ -2835,7 +2778,7 @@
 
 @kindex thread apply
 @cindex apply command to several threads
-@item thread apply [@var{threadno}] [@var{all}] @var{command}
+@item thread apply [@var{threadno} | all] @var{command}
 The @code{thread apply} command allows you to apply the named
 @var{command} to one or more threads.  Specify the numbers of the
 threads that you want affected with the command argument