libports: Expat

This patch adds the "Expat" XML parser library to libports.

Fixes #245.

libports/lib/import/import-expat.mk

@@ -0,0 +1,4 @@
+EXPAT_VER    = 2.1.0
+EXPAT        = expat-$(EXPAT_VER)
+
+REP_INC_DIR += contrib/$(EXPAT)/lib

libports/lib/mk/expat.mk

@@ -0,0 +1,12 @@
+include $(REP_DIR)/lib/import/import-expat.mk
+
+EXPAT_DIR = $(REP_DIR)/contrib/$(EXPAT)
+LIBS     += libc
+
+SRC_C = xmlparse.c xmlrole.c xmltok.c
+
+CC_OPT += -DHAVE_MEMMOVE -DXML_NS=1 -DXML_DTD=1 -DXML_CONTEXT_BYTES=1024
+
+vpath %.c $(EXPAT_DIR)/lib
+
+SHARED_LIB = yes

libports/ports/expat.mk

@@ -0,0 +1,25 @@
+include lib/import/import-expat.mk
+
+EXPAT_TGZ = $(EXPAT).tar.gz
+EXPAT_URL = http://sourceforge.net/projects/expat/files/expat/$(EXPAT_VER)/$(EXPAT_TGZ)
+
+#
+# Interface to top-level prepare Makefile
+#
+PORTS += $(EXPAT)
+
+prepare-expat: $(CONTRIB_DIR)/$(EXPAT)
+
+$(CONTRIB_DIR)/$(EXPAT):clean-expat
+
+#
+# Port-specific local rules
+#
+$(DOWNLOAD_DIR)/$(EXPAT_TGZ):
+	$(VERBOSE)wget -c -P $(DOWNLOAD_DIR) $(EXPAT_URL) && touch $@
+
+$(CONTRIB_DIR)/$(EXPAT): $(DOWNLOAD_DIR)/$(EXPAT_TGZ)
+	$(VERBOSE)tar xfz $< -C $(CONTRIB_DIR) && touch $@
+
+clean-expat:
+	$(VERBOSE)rm -rf $(CONTRIB_DIR)/$(EXPAT)

libports/run/expat.run

@@ -0,0 +1,79 @@
+#
+# \brief  Test for using the expat library
+# \author Christian Prochaska
+# \date   2012-06-12
+#
+
+#
+# Build
+#
+
+build { core init drivers/timer test/expat }
+
+create_boot_directory
+
+#
+# Generate config
+#
+
+install_config {
+<config>
+	<parent-provides>
+		<service name="ROM"/>
+		<service name="RAM"/>
+		<service name="CAP"/>
+		<service name="PD"/>
+		<service name="RM"/>
+		<service name="CPU"/>
+		<service name="LOG"/>
+		<service name="IO_PORT"/>
+		<service name="IRQ"/>
+		<service name="SIGNAL"/>
+	</parent-provides>
+	<default-route>
+		<any-service> <parent/> <any-child/> </any-service>
+	</default-route>
+        <start name="timer">
+                <resource name="RAM" quantum="1M"/>
+                <provides> <service name="Timer"/> </provides>
+        </start>
+	<start name="test-expat">
+		<resource name="RAM" quantum="2M"/>
+		<config>
+			<test_tag test_attribute="test_value" />
+		</config>
+	</start>
+</config>
+}
+
+#
+# Boot modules
+#
+
+build_boot_image {
+	core init timer
+	ld.lib.so libc.lib.so libc_log.lib.so libc_rom.lib.so expat.lib.so
+	test-expat
+}
+
+#
+# Execute test case
+#
+
+append qemu_args " -nographic -m 64"
+
+run_genode_until {.*child exited with exit value 0.*} 5
+
+grep_output {\[init -> test-expat\]  }
+
+compare_output_to {
+	[init -> test-expat]  start of element: config
+	[init -> test-expat]  start of element: test_tag
+	[init -> test-expat]  attribute: name='test_attribute', value='test_value'
+	[init -> test-expat]  end of element: test_tag
+	[init -> test-expat]  end of element: config
+}
+
+puts "\nTest succeeded\n"
+
+# vi: set ft=tcl :

libports/src/test/expat/main.cc

@@ -0,0 +1,63 @@
+/*
+ * \brief  Expat test
+ * \author Christian Prochaska
+ * \date   2012-06-12
+ */
+
+/*
+ * Copyright (C) 2012 Genode Labs GmbH
+ *
+ * This file is part of the Genode OS framework, which is distributed
+ * under the terms of the GNU General Public License version 2.
+ */
+
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "expat.h"
+
+
+static void start_element(void *userdata, const char *name, const char **attr)
+{
+	printf(" start of element: %s\n", name);
+
+	for (int i = 0; attr[i]; i += 2)
+		printf(" attribute: name='%s', value='%s'\n", attr[i], attr[i + 1]);
+}
+
+
+static void end_element(void *userdata, const char *name)
+{
+	printf(" end of element: %s\n", name);
+}
+
+
+int main(int argc, char *argv[])
+{
+	char buf[128];
+
+	XML_Parser parser = XML_ParserCreate(NULL);
+	XML_SetElementHandler(parser, start_element, end_element);
+
+	int config_fd = open("config", O_RDONLY);
+
+	if (config_fd < 0) {
+		printf(" Error: could not open config file\n");
+		return -1;
+	}
+
+	read(config_fd, buf, sizeof(buf));
+
+	if (XML_Parse(parser, buf, strlen(buf), 1) == XML_STATUS_ERROR) {
+		printf(" Error: %s at line %lu\n",
+				XML_ErrorString(XML_GetErrorCode(parser)),
+				XML_GetCurrentLineNumber(parser));
+		return -1;
+	}
+
+	XML_ParserFree(parser);
+
+	return 0;
+}

libports/src/test/expat/target.mk

@@ -0,0 +1,3 @@
+TARGET   = test-expat
+SRC_CC   = main.cc
+LIBS     = expat libc libc_log libc_rom