[patch] Fix dangling displays in separate debug

[Jan Kratochvil <jan.kratochvil@redhat.com>]

Hi,

gdb.base/solib-display.exp using _separate_ debug info:
3: c_global = gdbtypes.c:1369: internal-error: check_typedef: Assertion `type' failed.
A problem internal to GDB has been detected,

This problem was fixed before by:
	[patch 1/8] Types GC [unloading observer]
	http://sourceware.org/ml/gdb-patches/2009-05/msg00544.html
	Re: [patch 3/8] Types GC [display_uses_solib_p to exp_iterate]
	http://sourceware.org/ml/gdb-patches/2009-07/msg00054.html

but as that patchset is still not in providing this temporary fixup instead.

One may only address that gdb.base/solib-display.exp was testing symbol
in-objfile while now it tests only symbol in-sepdebug-objfile and no longer
the in-objfile case.  I find the in-sepdebug-objfile as a superset of
in-objfile test but I can rework it if anyones addresses this test change.

No regressions on {x86_64,x86_64-m32,i686}-fedora12-linux-gnu.


Thanks,
Jan


gdb/
2010-04-03  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* printcmd.c (display_uses_solib_p): Check also
	SEPARATE_DEBUG_OBJFILE.

gdb/testsuite/
2010-04-03  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* gdb.base/solib-display.exp (split solib): New.

--- a/gdb/printcmd.c
+++ b/gdb/printcmd.c
@@ -1895,7 +1895,9 @@ display_uses_solib_p (const struct display *d,
 	    return 1;
 
 	  /* SYMBOL_OBJ_SECTION (symbol) may be NULL.  */
-	  if (SYMBOL_SYMTAB (symbol)->objfile == solib->objfile)
+	  if (SYMBOL_SYMTAB (symbol)->objfile == solib->objfile
+	      || SYMBOL_SYMTAB (symbol)->objfile
+		 == solib->objfile->separate_debug_objfile)
 	    return 1;
 	}
       endpos -= oplen;
--- a/gdb/testsuite/gdb.base/solib-display.exp
+++ b/gdb/testsuite/gdb.base/solib-display.exp
@@ -53,6 +53,13 @@ if { [gdb_compile_shlib ${srcfile_lib} ${binfile_lib} $lib_flags] != ""
   return -1
 }
 
+set test "split solib"
+if {[gdb_gnu_strip_debug $binfile_lib] != 0} {
+    fail $test
+} else {
+    pass $test
+}
+
 gdb_exit
 gdb_start
 gdb_reinitialize_dir $srcdir/$subdir