Fix Java PR gdb/1322 (was Re: [rfa/doc] Document pr gdb/1322 in PROBLEMS)

[Daniel Jacobowitz <drow@mvista.com>]

On Mon, Aug 18, 2003 at 02:32:20PM -0400, Michael Elizabeth Chastain wrote:
> + 
> + gdb/1322: "internal-error: sect_index_text not initialized" after printing a java type
> + 
> + When gdb debugs a Java program which uses shared libraries, it can
> + generate this internal error.
> + 
> + If you get this error when debugging Java, you can try working around
> + the problem by relinking your program with no shared libraries at all
> + (even the standard C library).  With the GNU linker, use the "-static"
> + argument to do this.
> + 
> + You can also try this patch for gdb:
> + 
> +   http://sources.redhat.com/ml/gdb-prs/2003-q3/msg00190.html

How about we fix it instead?  This patch depends on Mark K's
per-objfile-data patch, but only because it touches the same area, I
think.

Dwarf maintainers, is this OK?  Could someone test that it fixes the
Java problems on HEAD?

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer

2003-08-24  Daniel Jacobowitz  <drow@mvista.com>

	PR gdb/1322
	* dwarf2-frame.c (dwarf2_frame_find_fde): Check whether any FDEs are
	available before calling SECT_OFF_TEXT.

Index: dwarf2-frame.c
===================================================================
RCS file: /cvs/src/src/gdb/dwarf2-frame.c,v
retrieving revision 1.11
diff -u -p -r1.11 dwarf2-frame.c
--- dwarf2-frame.c	21 Aug 2003 22:35:33 -0000	1.11
+++ dwarf2-frame.c	24 Aug 2003 16:52:24 -0000
@@ -1024,9 +1024,12 @@ dwarf2_frame_find_fde (CORE_ADDR *pc)
       struct dwarf2_fde *fde;
       CORE_ADDR offset;
 
-      offset = ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
-      
       fde = objfile_data (objfile, dwarf2_frame_data);
+      if (fde == NULL)
+	continue;
+
+      offset = ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
+
       while (fde)
 	{
 	  if (*pc >= fde->initial_location + offset