gdb/gdb-6.3-readnever-20050907.patch

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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-7.2.50.20110107/gdb/doc/gdb.texinfo
===================================================================
--- gdb-7.2.50.20110107.orig/gdb/doc/gdb.texinfo 2011-01-07 09:03:38.000000000 +0100
+++ gdb-7.2.50.20110107/gdb/doc/gdb.texinfo 2011-01-07 09:04:48.000000000 +0100
@@ -1007,6 +1007,12 @@ 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-7.2.50.20110107/gdb/main.c
===================================================================
--- gdb-7.2.50.20110107.orig/gdb/main.c 2011-01-07 09:04:39.000000000 +0100
+++ gdb-7.2.50.20110107/gdb/main.c 2011-01-07 09:05:02.000000000 +0100
@@ -395,6 +395,7 @@ 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},
@@ -1060,6 +1061,7 @@ Options:\n\n\
fputs_unfiltered (_("\
--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-7.2.50.20110107/gdb/symfile.c
===================================================================
--- gdb-7.2.50.20110107.orig/gdb/symfile.c 2011-01-05 23:22:50.000000000 +0100
+++ gdb-7.2.50.20110107/gdb/symfile.c 2011-01-07 09:04:48.000000000 +0100
@@ -81,6 +81,7 @@ 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-7.2.50.20110107/gdb/dwarf2read.c
===================================================================
--- gdb-7.2.50.20110107.orig/gdb/dwarf2read.c 2011-01-07 09:03:38.000000000 +0100
+++ gdb-7.2.50.20110107/gdb/dwarf2read.c 2011-01-07 09:04:48.000000000 +0100
@@ -57,6 +57,7 @@
#include "vec.h"
#include "c-lang.h"
#include "valprint.h"
+#include "top.h"
#include <fcntl.h>
#include "gdb_string.h"
@@ -1350,8 +1351,9 @@ dwarf2_has_info (struct objfile *objfile
bfd_map_over_sections (objfile->obfd, dwarf2_locate_sections, NULL);
dwarf2_per_objfile->objfile = objfile;
}
- return (dwarf2_per_objfile->info.asection != NULL
- && dwarf2_per_objfile->abbrev.asection != NULL);
+ return (! readnever_symbol_files
+ && (dwarf2_per_objfile->info.asection != NULL
+ && dwarf2_per_objfile->abbrev.asection != NULL));
}
/* When loading sections, we can either look for ".<name>", or for
Index: gdb-7.2.50.20110107/gdb/top.h
===================================================================
--- gdb-7.2.50.20110107.orig/gdb/top.h 2011-01-01 16:33:18.000000000 +0100
+++ gdb-7.2.50.20110107/gdb/top.h 2011-01-07 09:04:48.000000000 +0100
@@ -61,6 +61,7 @@ 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 *);