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-7.3.50.20110722/gdb/doc/gdb.texinfo
===================================================================
--- gdb-7.3.50.20110722.orig/gdb/doc/gdb.texinfo 2011-07-22 19:08:19.000000000 +0200
+++ gdb-7.3.50.20110722/gdb/doc/gdb.texinfo 2011-07-22 19:15:13.000000000 +0200
@@ -1005,6 +1005,12 @@ 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-7.3.50.20110722/gdb/main.c
===================================================================
--- gdb-7.3.50.20110722.orig/gdb/main.c 2011-07-22 19:14:25.000000000 +0200
+++ gdb-7.3.50.20110722/gdb/main.c 2011-07-22 19:15:13.000000000 +0200
@@ -399,6 +399,7 @@ 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},
@@ -1065,6 +1066,7 @@ 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-7.3.50.20110722/gdb/symfile.c
===================================================================
--- gdb-7.3.50.20110722.orig/gdb/symfile.c 2011-05-11 06:56:07.000000000 +0200
+++ gdb-7.3.50.20110722/gdb/symfile.c 2011-07-22 19:15:13.000000000 +0200
@@ -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-7.3.50.20110722/gdb/dwarf2read.c
===================================================================
--- gdb-7.3.50.20110722.orig/gdb/dwarf2read.c 2011-07-22 19:08:19.000000000 +0200
+++ gdb-7.3.50.20110722/gdb/dwarf2read.c 2011-07-22 19:15:41.000000000 +0200
@@ -58,6 +58,7 @@
#include "c-lang.h"
#include "valprint.h"
#include <ctype.h>
+#include "top.h"
#include <fcntl.h>
#include "gdb_string.h"
@@ -1388,8 +1389,9 @@ dwarf2_has_info (struct objfile *objfile
(void *) names);
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 look either for uncompressed section or for
Index: gdb-7.3.50.20110722/gdb/top.h
===================================================================
--- gdb-7.3.50.20110722.orig/gdb/top.h 2011-07-21 13:03:45.000000000 +0200
+++ gdb-7.3.50.20110722/gdb/top.h 2011-07-22 19:15:13.000000000 +0200
@@ -59,6 +59,7 @@ extern void set_prompt (const char *);
/* From random places. */
extern int readnow_symbol_files;
+extern int readnever_symbol_files;
/* Perform _initialize initialization. */
extern void gdb_init (char *);