http://sourceware.org/ml/gdb-patches/2010-07/msg00184.html

Subject: Re: [0/4] RFC: add DWARF index support

Jan Kratochvil: Fixed $d -> $dir.

Jan Kratochvil: Remove /dev/null redirection.

>>>>> "Tom" == Tom Tromey <tromey@redhat.com> writes:

Tom> This patch series adds support for a DWARF index to gdb.

Roland suggested we wrap up the index-creation code into a helper

script.

I'm not sure if this is something people would want in gdb proper, but I

figured I would send it here just in case.

Tom

2010-07-09  Tom Tromey  <tromey@redhat.com>

	* Makefile.in (install-only): Install gdb-add-index.

	* gdb-add-index: New file.

2010-07-09  Tom Tromey  <tromey@redhat.com>

	* gdb.texinfo (Index Files): Mention gdb-add-index.

>From 30714fe719e61baea03d0dc5793eb0d564faebb7 Mon Sep 17 00:00:00 2001

From: Tom Tromey <tromey@redhat.com>

Date: Fri, 9 Jul 2010 11:17:54 -0600

Subject: [PATCH 4/4] add gdb-add-index

Subject: [PATCH 4/4] add gdb-add-index

---

 gdb/ChangeLog       |    5 +++++

 gdb/Makefile.in     |   11 ++++++++++-

 gdb/doc/ChangeLog   |    4 ++++

 gdb/doc/gdb.texinfo |    8 ++++++++

 gdb/gdb-add-index   |   30 ++++++++++++++++++++++++++++++

 5 files changed, 57 insertions(+), 1 deletions(-)

 create mode 100755 gdb/gdb-add-index

Index: gdb-7.2.50.20101116/gdb/Makefile.in

===================================================================

--- gdb-7.2.50.20101116.orig/gdb/Makefile.in	2010-11-16 08:03:17.000000000 +0100

+++ gdb-7.2.50.20101116/gdb/Makefile.in	2010-11-16 08:47:45.000000000 +0100

@@ -986,7 +986,16 @@ install-only: install-gstack $(CONFIG_IN

 		$(SHELL) $(srcdir)/../mkinstalldirs \

 			$(DESTDIR)$(man1dir) ; \

 		$(INSTALL_DATA) $(srcdir)/gdb.1 \

-			$(DESTDIR)$(man1dir)/$$transformed_name.1

+			$(DESTDIR)$(man1dir)/$$transformed_name.1; \

+	transformed_name=`t='$(program_transform_name)'; \

+			  echo gdb-add-index | sed -e "$$t"` ; \

+		if test "x$$transformed_name" = x; then \

+		  transformed_name=gdb-add-index ; \

+		else \

+		  true ; \

+		fi ; \

+		$(INSTALL_PROGRAM) $(srcdir)/gdb-add-index \

+			$(DESTDIR)$(bindir)/$$transformed_name$(EXEEXT)

 	@$(MAKE) DO=install "DODIRS=$(SUBDIRS)" $(FLAGS_TO_PASS) subdir_do

 .PHONY: install-tui

 install-tui:

Index: gdb-7.2.50.20101116/gdb/doc/gdb.texinfo

===================================================================

--- gdb-7.2.50.20101116.orig/gdb/doc/gdb.texinfo	2010-11-16 08:04:18.000000000 +0100

+++ gdb-7.2.50.20101116/gdb/doc/gdb.texinfo	2010-11-16 08:56:30.000000000 +0100

@@ -15500,6 +15500,14 @@ There are currently some limitation on i

 for DWARF debugging information, not stabs.  And, they do not

 currently work for programs using Ada.

+@value{GDBN} comes with a program, @command{gdb-add-index}, which can

+be used to add the index to a symbol file.  It takes the symbol file

+as its only argument:

+

+@smallexample

+$ gdb-add-index symfile

+@end smallexample

+

 @node Symbol Errors

 @section Errors Reading Symbol Files

Index: gdb-7.2.50.20101116/gdb/gdb-add-index

===================================================================

--- /dev/null	1970-01-01 00:00:00.000000000 +0000

+++ gdb-7.2.50.20101116/gdb/gdb-add-index	2010-11-16 08:47:45.000000000 +0100

@@ -0,0 +1,30 @@

+#! /bin/sh

+

+# Add a .gdb_index section to a file.

+

+# Copyright (C) 2010 Free Software Foundation, Inc.

+# This program is free software; you can redistribute it and/or modify

+# it under the terms of the GNU General Public License as published by

+# the Free Software Foundation; either version 3 of the License, or

+# (at your option) any later version.

+#

+# This program is distributed in the hope that it will be useful,

+# but WITHOUT ANY WARRANTY; without even the implied warranty of

+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

+# GNU General Public License for more details.

+#

+# You should have received a copy of the GNU General Public License

+# along with this program.  If not, see <http://www.gnu.org/licenses/>.

+

+file="$1"

+dir="${file%/*}"

+

+# We don't care if gdb gives an error.

+gdb -nx --batch-silent -ex "file $file" -ex "save gdb-index $dir"

+

+if test -f "${file}.gdb-index"; then

+   objcopy --add-section .gdb_index="${file}.gdb-index" --set-section-flags .gdb_index=readonly "$file" "$file"

+   rm -f "${file}.gdb-index"

+fi

+

+exit 0