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.
        (print_gdb_help): Ditto.

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

        * gdb.texinfo (File Options): Document --readnever.

Index: gdb-6.8/gdb/doc/gdb.texinfo
===================================================================
--- gdb-6.8.orig/gdb/doc/gdb.texinfo	2008-03-26 19:38:21.000000000 +0100
+++ gdb-6.8/gdb/doc/gdb.texinfo	2008-07-14 10:27:01.000000000 +0200
@@ -983,6 +983,12 @@ Read each symbol file's entire symbol ta
 the default, which is to read it incrementally as it is needed.
 This makes startup slower, but makes future operations faster.
 
+@item --readnever
+@cindex @code{--readnever}
+Do not read each symbol file's symbolic debug information.  This makes
+startup faster but at the expense of not being able to perform
+symbolic debugging.
+
 @end table
 
 @node Mode Options
Index: gdb-6.8/gdb/main.c
===================================================================
--- gdb-6.8.orig/gdb/main.c	2008-07-14 10:26:39.000000000 +0200
+++ gdb-6.8/gdb/main.c	2008-07-14 10:27:01.000000000 +0200
@@ -296,6 +296,7 @@ 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},
@@ -947,6 +948,7 @@ Options:\n\n\
   fputs_unfiltered (_(" file.\n\
   --quiet            Do not print version number on startup.\n\
   --readnow          Fully read symbol files on first access.\n\
+  --readnever        Do not read symbol files.\n\
 "), stream);
   fputs_unfiltered (_("\
   --se=FILE          Use FILE as symbol file and executable file.\n\
Index: gdb-6.8/gdb/symfile.c
===================================================================
--- gdb-6.8.orig/gdb/symfile.c	2008-07-14 10:26:30.000000000 +0200
+++ gdb-6.8/gdb/symfile.c	2008-07-14 10:27:01.000000000 +0200
@@ -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. */
 
Index: gdb-6.8/gdb/dwarf2read.c
===================================================================
--- gdb-6.8.orig/gdb/dwarf2read.c	2008-07-14 10:26:09.000000000 +0200
+++ gdb-6.8/gdb/dwarf2read.c	2008-07-14 10:27:01.000000000 +0200
@@ -43,6 +43,7 @@
 #include "dwarf2loc.h"
 #include "cp-support.h"
 #include "hashtab.h"
+#include "top.h"
 #include "command.h"
 #include "gdbcmd.h"
 
@@ -1106,7 +1107,8 @@ 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);
 }
 
 /* This function is mapped across the sections and remembers the
Index: gdb-6.8/gdb/top.h
===================================================================
--- gdb-6.8.orig/gdb/top.h	2008-01-01 23:53:13.000000000 +0100
+++ gdb-6.8/gdb/top.h	2008-07-14 10:27:01.000000000 +0200
@@ -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 *);