* stabsread.c (patch_block_stabs): If stab & no symbol, make

a LOC_OPTIMIZED_OUT symbol.
	symtab.h (enum address_class): Add LOC_OPTIMIZED_OUT.
	findvar.c (read_var_value), printcmd.c (address_info),
	symmisc.c (print_{,partial_}symbol), c-exp.y (variable),
	m2-exp.y (yylex): Deal with it.

gdb/ChangeLog

@@ -1,3 +1,24 @@
+Fri Apr  2 08:23:14 1993  Jim Kingdon  (kingdon@cygnus.com)
+
+	* xcoffexec.c: Call fatal() not abort().
+
+	* stabsread.c (patch_block_stabs): If stab & no symbol, make
+	a LOC_OPTIMIZED_OUT symbol.
+	symtab.h (enum address_class): Add LOC_OPTIMIZED_OUT.
+	findvar.c (read_var_value), printcmd.c (address_info),
+	symmisc.c (print_{,partial_}symbol), c-exp.y (variable),
+	m2-exp.y (yylex): Deal with it.
+	**** start-sanitize-chill ****
+	ch-exp.y (yylex): Deal with it.
+	**** end-sanitize-chill ****
+
+Thu Apr  1 18:43:02 1993  Stu Grossman  (grossman@cygnus.com)
+
+	* findvar.c (value_from_register):  H8500 specific, check to see
+	if we are looking at short pointer.  If so, skip crock.
+	* h8500-tdep.c (h8500_frame_chain):  Mask down value from
+	read_memory_integer() to avoid getting messed up by sign extension.
+
 Thu Apr  1 16:44:41 1993  K. Richard Pixley  (rich@rtl.cygnus.com)
 
 	* sparc-tdep.c (in_solib_trampoline), symfile.c (find_pc_section):

gdb/c-exp.y

@@ -671,6 +671,7 @@ variable:	name_not_typename
 				case LOC_LABEL:
 				case LOC_BLOCK:
 				case LOC_CONST_BYTES:
+				case LOC_OPTIMIZED_OUT:
 
 				  /* In this case the expression can
 				     be evaluated regardless of what

gdb/ch-exp.y

@@ -1979,6 +1979,7 @@ yylex ()
 	      case LOC_UNDEF:
 	      case LOC_TYPEDEF:
 	      case LOC_CONST_BYTES:
+	      case LOC_OPTIMIZED_OUT:
 		error ("Symbol \"%s\" names no location.", simplename);
 		break;
 	      }

gdb/m2-exp.y

@@ -617,6 +617,7 @@ variable:	NAME
 				case LOC_LABEL:	/* maybe should go above? */
 				case LOC_BLOCK:
 				case LOC_CONST_BYTES:
+				case LOC_OPTIMIZED_OUT:
 				  /* These are listed so gcc -Wall will reveal
 				     un-handled cases.  */
 				  break;

gdb/stabsread.c

@@ -382,9 +382,32 @@ patch_block_stabs (symbols, stabs, objfile)
 	  sym = find_symbol_in_list (symbols, name, pp-name);
 	  if (!sym)
 	    {
-#ifndef IBM6000_TARGET
-	      printf ("ERROR! stab symbol not found!\n");	/* FIXME */
-#endif
+	      /* On xcoff, if a global is defined and never referenced,
+		 ld will remove it from the executable.  There is then
+		 a N_GSYM stab for it, but no regular (C_EXT) symbol.  */
+	      sym = (struct symbol *)
+		obstack_alloc (&objfile->symbol_obstack,
+			       sizeof (struct symbol));
+
+	      memset (sym, 0, sizeof (struct symbol));
+	      SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
+	      SYMBOL_CLASS (sym) = LOC_OPTIMIZED_OUT;
+	      SYMBOL_NAME (sym) =
+		obstack_copy0 (&objfile->symbol_obstack, name, pp - name);
+	      pp += 2;
+	      if (*(pp-1) == 'F' || *(pp-1) == 'f')
+		{
+		  /* I don't think the linker does this with functions,
+		     so as far as I know this is never executed.
+		     But it doesn't hurt to check.  */
+		  SYMBOL_TYPE (sym) =
+		    lookup_function_type (read_type (&pp, objfile));
+		}
+	      else
+		{
+		  SYMBOL_TYPE (sym) = read_type (&pp, objfile);
+		}
+	      add_symbol_to_list (sym, &global_symbols);
 	    }
 	  else
 	    {

gdb/xcoffexec.c

@@ -228,14 +228,14 @@ build_section_table (some_bfd, start, end)
 
   count = bfd_count_sections (some_bfd);
   if (count == 0)
-    abort();	/* return 1? */
+    fatal ("aborting");	/* return 1? */
   if (*start)
     free (*start);
   *start = (struct section_table *) xmalloc (count * sizeof (**start));
   *end = *start;
   bfd_map_over_sections (some_bfd, add_to_section_table, (char *)end);
   if (*end > *start + count)
-    abort();
+    fatal ("aborting");
   /* We could realloc the table, but it probably loses for most files.  */
   return 0;
 }
@@ -644,7 +644,7 @@ xfer_memory (memaddr, myaddr, len, write, target)
   boolean (*xfer_fn) PARAMS ((bfd *, sec_ptr, PTR, file_ptr, bfd_size_type));
 
   if (len <= 0)
-    abort();
+    fatal ("aborting");
 
   memend = memaddr + len;
   xfer_fn = write? bfd_set_section_contents: bfd_get_section_contents;