* dbxread.c (process_one_symbol): Ignore N_MAIN, N_ENDM for Solaris.

* partial-stab.h:  Ignore N_ENDM.
* elfread.c (elf_symtab_read):  Ignore symbols that don't have a
CODE or DATA section attachment.  This eliminates a lot of random
values from shared libraries, which screw up the ordinary symbols
in the address ranges they happen to overlap.
* buildsym.c (define_symbol):  Eliminate special tests
for function types; move into "function" cases in switch statement.
(define_symbol: 'f', 'F', 'P'):  Process all parameter types
in case they define new type numbers.  But ignore them (FIXME).
('k', 'B'):  Ignore const and volatile if we see them (FIXME).
(read_sun_builtin_type):  Add commentary.

gdb/elfread.c

@@ -274,7 +274,12 @@ elf_symtab_read (abfd, addr, objfile)
 		}
 	      else
 		{
-		  ms_type = mst_unknown;
+		  /* FIXME:  Solaris2 shared libraries include lots of
+		     odd "absolute" and "undefined" symbols, that play 
+		     hob with actions like finding what function the PC
+		     is in.  Ignore them if they aren't text or data.  */
+		  /* ms_type = mst_unknown; */
+		  continue;		/* Skip this symbol. */
 		}
 	      /* Pass symbol size field in via BFD.  FIXME!!!  */
 	      record_minimal_symbol_and_info ((char *) sym -> name,