Patch for IA64 HP-UX __Unwind_GetIPInfo cleanup

[Steve Ellcey <sje at cup dot hp dot com>]

Back when __Unwind_GetIPInfo was created and calls were put into the C++
and Java runtimes I created a __Unwind_GetIPInfo for IA64 HP-UX and put
it in libgcc because GCC on IA64 HP-UX uses the system unwind library
and that library had no __Unwind_GetIPInfo routine.

Now that we check for __Unwind_GetIPInfo during the GCC configuration, I
would like to remove __Unwind_GetIPInfo from the IA64 HP-UX libgcc.  The
uses were added after 4.1 so there should be no released GCC on IA64
HP-UX that generates calls to this routine.

My main reason for doing this is that I think it looks odd to have an
unwind routine in libgcc when all the rest are in libunwind.  I would
like to remove it now before it is released and avoid having to keep it
around forever due to backwords compatibility.

Mark, I know this isn't really a regression but it is something that
needs to done before 4.2 is released in order to have any value.

Tested on IA64 HP-UX with no regressions.  OK to checkin?

Steve Ellcey
sje@cup.hp.com



2006-09-27  Steve Ellcey  <sje@cup.hp.com>

	* config/ia64/t-hpux (LIB2FUNCS_EXTRA): Remove unwind-hpux.c.
	* config/ia64/unwind-hpux.c: Delete.

Index: config/ia64/t-hpux
===================================================================
--- config/ia64/t-hpux	(revision 117243)
+++ config/ia64/t-hpux	(working copy)
@@ -9,13 +9,10 @@ MULTILIB_MATCHES =
 
 # Support routines for HP-UX 128 bit floats.
 
-LIB2FUNCS_EXTRA=quadlib.c $(srcdir)/config/floatunsitf.c unwind-hpux.c
+LIB2FUNCS_EXTRA=quadlib.c $(srcdir)/config/floatunsitf.c
 
 quadlib.c: $(srcdir)/config/ia64/quadlib.c
 	cat $(srcdir)/config/ia64/quadlib.c > quadlib.c
-
-unwind-hpux.c: $(srcdir)/config/ia64/unwind-hpux.c
-	cat $(srcdir)/config/ia64/unwind-hpux.c > unwind-hpux.c
 
 # We get an undefined main when building a cross compiler because our
 # linkspec has "-u main" and we want that for linking but it makes