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Re: [RFC] Add expat to the GDB sources

From: Daniel Jacobowitz <drow at false dot org>
To: gdb-patches at sourceware dot org
Date: Tue, 18 Jul 2006 09:57:18 -0400
Subject: Re: [RFC] Add expat to the GDB sources
References: <20060718134048.GA15685@nevyn.them.org>

On Tue, Jul 18, 2006 at 09:40:48AM -0400, Daniel Jacobowitz wrote:
> At the beginning of the year, I proposed adding an XML parsing library to
> GDB.  There was some discussion, and a few alternatives were proposed which
> would accomplish the same goals, but neither substantially better nor
> substantially worse.  Since then, we've fleshed out the project the XML
> descriptions were originally intended for (targets which can inform the
> debugger about their registers), and added another (memory maps, used to
> control flash writing).
> 
> I chose expat as the C XML library to use in GDB.  It's a bit frustrating
> (it's a stream-oriented binding, and I find DOM (tree-oriented) bindings
> much more natural), but it's also useful and of a reasonable size.  The most
> logical candidate for a DOM binding would have been libxml2, and the source
> for that is excessive to include in GDB.
> 
> Here is a patch to add an expat directory to the src repository, gdb builds,
> and gdb release tarballs.  Not shown is expat itself.
> 
> Any comments?  I will hold off on this patch for a little while, at least
> until one of the expat clients is ready.

D'oh!  With patch now.

-- 
Daniel Jacobowitz
CodeSourcery

2006-07-18  Daniel Jacobowitz  <dan@codesourcery.com>

	* expat: New directory.
	* Makefile.def (host_modules, dependencies): Add expat.
	* configure.in (host_libs): Add expat.
	* src-release (GDB_SUPPORT_DIRS): Add expat.
	* MAINTAINERS: Mention expat.
	* Makefile.in, configure: Regenerated.

2006-07-18  Daniel Jacobowitz  <dan@codesourcery.com>

	* Makefile.in (EXPAT, EXPAT_CFLAGS): New.
	(INTERNAL_CFLAGS_BASE, CLIBS, CDEPS, LINTFLAGS): Add expat.

Index: Makefile.def
===================================================================
RCS file: /cvs/src/src/Makefile.def,v
retrieving revision 1.69
diff -u -p -r1.69 Makefile.def
--- Makefile.def	7 Jun 2006 22:33:16 -0000	1.69
+++ Makefile.def	18 Jul 2006 13:13:51 -0000
@@ -47,6 +47,8 @@ host_modules= { module= dejagnu; };
 host_modules= { module= diff; };
 host_modules= { module= dosutils; no_check= true; };
 host_modules= { module= etc; };
+host_modules= { module= expat; no_install= true;
+                extra_configure_flags='--disable-shared'; };
 host_modules= { module= fastjar; no_check_cross= true; };
 host_modules= { module= fileutils; };
 host_modules= { module= findutils; };
@@ -304,6 +306,7 @@ dependencies = { module=all-gdb; on=all-
 dependencies = { module=all-gdb; on=all-build-bison; };
 dependencies = { module=all-gdb; on=all-build-byacc; };
 dependencies = { module=all-gdb; on=all-sim; };
+dependencies = { module=all-gdb; on=all-expat; };
 
 dependencies = { module=configure-libgui; on=configure-tcl; };
 dependencies = { module=configure-libgui; on=configure-tk; };
Index: configure.in
===================================================================
RCS file: /cvs/src/src/configure.in,v
retrieving revision 1.313
diff -u -p -r1.313 configure.in
--- configure.in	3 Jul 2006 11:22:03 -0000	1.313
+++ configure.in	18 Jul 2006 13:13:55 -0000
@@ -123,7 +123,7 @@ build_tools="build-texinfo build-byacc b
 
 # these libraries are used by various programs built for the host environment
 #
-host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp libdecnumber"
+host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp libdecnumber expat"
 
 # these tools are built for the host environment
 # Note, the powerpc-eabi build depends on sim occurring before gdb in order to
Index: src-release
===================================================================
RCS file: /cvs/src/src/src-release,v
retrieving revision 1.21
diff -u -p -r1.21 src-release
--- src-release	31 May 2006 15:14:34 -0000	1.21
+++ src-release	18 Jul 2006 13:13:55 -0000
@@ -270,7 +270,7 @@ gnats.tar.bz2: $(DIST_SUPPORT) $(GNATS_S
 		SUPPORT_FILES="$(GNATS_SUPPORT_DIRS)"
 
 .PHONY: gdb.tar.bz2
-GDB_SUPPORT_DIRS= bfd include libiberty opcodes readline sim intl
+GDB_SUPPORT_DIRS= bfd include libiberty opcodes readline sim intl expat
 gdb.tar.bz2: $(DIST_SUPPORT) $(GDB_SUPPORT_DIRS) gdb
 	$(MAKE) -f $(SELF) gdb-taz TOOL=gdb \
 		MD5PROG="$(MD5PROG)" \
Index: gdb/Makefile.in
===================================================================
RCS file: /cvs/src/src/gdb/Makefile.in,v
retrieving revision 1.827
diff -u -p -r1.827 Makefile.in
--- gdb/Makefile.in	12 Jul 2006 20:46:32 -0000	1.827
+++ gdb/Makefile.in	18 Jul 2006 13:13:56 -0000
@@ -128,6 +128,10 @@ READLINE = $(READLINE_DIR)/libreadline.a
 READLINE_SRC = $(srcdir)/$(READLINE_DIR)
 READLINE_CFLAGS = -I$(READLINE_SRC)/..
 
+# Where is the expat library?  Typically in ../expat.
+EXPAT = ../expat/.libs/libexpat.a
+EXPAT_CFLAGS = -I$(srcdir)/../expat/lib -I../expat
+
 WARN_CFLAGS = @WARN_CFLAGS@
 WERROR_CFLAGS = @WERROR_CFLAGS@
 GDB_WARN_CFLAGS = $(WARN_CFLAGS)
@@ -348,7 +352,7 @@ CXXFLAGS = -g -O
 INTERNAL_CFLAGS_BASE = \
 	$(CFLAGS) $(GLOBAL_CFLAGS) $(PROFILE_CFLAGS) \
 	$(GDB_CFLAGS) $(OPCODES_CFLAGS) $(READLINE_CFLAGS) \
-	$(BFD_CFLAGS) $(INCLUDE_CFLAGS) \
+	$(BFD_CFLAGS) $(INCLUDE_CFLAGS) $(EXPAT_CFLAGS) \
 	$(INTL_CFLAGS) $(ENABLE_CFLAGS)
 INTERNAL_WARN_CFLAGS = $(INTERNAL_CFLAGS_BASE) $(GDB_WARN_CFLAGS)
 INTERNAL_CFLAGS = $(INTERNAL_WARN_CFLAGS) $(GDB_WERROR_CFLAGS)
@@ -376,10 +380,10 @@ INSTALLED_LIBS=-lbfd -lreadline -lopcode
 	-lintl -liberty
 CLIBS = $(SIM) $(READLINE) $(OPCODES) $(BFD) $(INTL) $(LIBIBERTY) \
 	$(XM_CLIBS) $(TM_CLIBS) $(NAT_CLIBS) $(GDBTKLIBS) @LIBS@ \
-	$(LIBICONV) \
+	$(LIBICONV) $(EXPAT) \
 	$(LIBIBERTY) $(WIN32LIBS)
 CDEPS = $(XM_CDEPS) $(TM_CDEPS) $(NAT_CDEPS) $(SIM) $(BFD) $(READLINE) \
-	$(OPCODES) $(INTL_DEPS) $(LIBIBERTY) $(CONFIG_DEPS)
+	$(OPCODES) $(INTL_DEPS) $(LIBIBERTY) $(CONFIG_DEPS) $(EXPAT)
 
 ADD_FILES = $(XM_ADD_FILES) $(TM_ADD_FILES) $(NAT_ADD_FILES)
 ADD_DEPS = $(XM_ADD_FILES) $(TM_ADD_FILES) $(NAT_ADD_FILES)
@@ -389,7 +393,7 @@ DIST=gdb
 LINT=/usr/5bin/lint
 LINTFLAGS= $(GDB_CFLAGS) $(OPCODES_CFLAGS) $(READLINE_CFLAGS) \
 	$(BFD_CFLAGS) $(INCLUDE_CFLAGS) \
-	$(INTL_CFLAGS)
+	$(INTL_CFLAGS) $(EXPAT_CFLAGS)
 
 RUNTEST = runtest
 RUNTESTFLAGS=
Index: MAINTAINERS
===================================================================
RCS file: /cvs/src/src/MAINTAINERS,v
retrieving revision 1.32
diff -u -p -r1.32 MAINTAINERS
--- MAINTAINERS	22 May 2006 15:30:13 -0000	1.32
+++ MAINTAINERS	18 Jul 2006 13:20:07 -0000
@@ -39,7 +39,7 @@ config.guess; config.sub; readline/suppo
 depcomp
         Send bug reports and patches to bug-automake@gnu.org.
 
-gdb/; readline/; sim/; GDB's part of include/
+gdb/; readline/; sim/; expat/; GDB's part of include/
 	GDB: http://www.gnu.org/software/gdb/
 	Patches to gdb-patches@sources.redhat.com.
 	See also gdb/MAINTAINERS and sim/MAINTAINERS.

Follow-Ups:
- Re: [RFC] Add expat to the GDB sources
  - From: Joel Brobecker
- Re: [RFC] Add expat to the GDB sources
  - From: Mark Kettenis

References:
- [RFC] Add expat to the GDB sources
  - From: Daniel Jacobowitz

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