File readnever.patch of Package gdb

2004-11-18  Andrew Cagney  <cagney@gnu.org>

	* dwarf2read.c: Include "top.c".
	(dwarf2_has_info): Check for readnever_symbol_files.
	* symfile.c (readnever_symbol_files): Define.
	* top.h (readnever_symbol_files): Declare.
	* main.c (captured_main): Add --readnever option.

================================================================================
--- gdb/dwarf2read.c
+++ gdb/dwarf2read.c
@@ -46,6 +46,7 @@
 #include "command.h"
 #include "gdbcmd.h"
 #include "addrmap.h"
+#include "top.h"
 
 #include <fcntl.h>
 #include "gdb_string.h"
@@ -1094,7 +1095,8 @@ dwarf2_has_info (struct objfile *objfile
   dwarf_loc_section = 0;
   
   bfd_map_over_sections (objfile->obfd, dwarf2_locate_sections, NULL);
-  return (dwarf_info_section != NULL && dwarf_abbrev_section != NULL);
+  return (!readnever_symbol_files
+	  && dwarf_info_section != NULL && dwarf_abbrev_section != NULL);
 }
 
 /* When loading sections, we can either look for ".<name>", or for
--- gdb/main.c
+++ gdb/main.c
@@ -295,6 +295,7 @@ captured_main (void *data)
       {"xdb", no_argument, &xdb_commands, 1},
       {"dbx", no_argument, &dbx_commands, 1},
       {"readnow", no_argument, &readnow_symbol_files, 1},
+      {"readnever", no_argument, &readnever_symbol_files, 1},
       {"r", no_argument, &readnow_symbol_files, 1},
       {"quiet", no_argument, &quiet, 1},
       {"q", no_argument, &quiet, 1},
--- gdb/symfile.c
+++ gdb/symfile.c
@@ -76,6 +76,7 @@ static void clear_symtab_users_cleanup (
 
 /* Global variables owned by this file */
 int readnow_symbol_files;	/* Read full symbols immediately */
+int readnever_symbol_files;	/* Never read full symbols.  */
 
 /* External variables and functions referenced. */
 
--- gdb/top.h
+++ gdb/top.h
@@ -59,6 +59,7 @@ extern void set_prompt (char *);
 
 /* From random places.  */
 extern int readnow_symbol_files;
+extern int readnever_symbol_files;
 
 /* Perform _initialize initialization */
 extern void gdb_init (char *);