Add image header package

This package adds content of .image_header section
When this section is present and correct linker script is used
generated elf file can be directly downloaded by debugger

Signed-off-by: Jerzy Kasenberg <jerzy.kasenberg@codecoup.pl>

mgmt/image_header/pkg.yml

@@ -0,0 +1,33 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+pkg.name: mgmt/image_header
+pkg.description: >
+ Package adds section .image_header.
+ When this section is present elf file contains mynewt image header and
+ can be loaded directly debugger into flash.
+pkg.author: "Apache Mynewt <dev@mynewt.apache.org>"
+pkg.homepage: "http://mynewt.apache.org/"
+pkg.keywords:
+
+pkg.deps:
+ - "@mcuboot/boot/bootutil"
+
+pkg.lflags:
+ - "-uimage_header"

mgmt/image_header/src/image_header.c

@@ -0,0 +1,31 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include <bootutil/image.h>
+
+__attribute__((section(".image_header"))) const struct image_header image_header = {
+ .ih_magic = IMAGE_MAGIC,
+ .ih_hdr_size = IMAGE_HEADER_SIZE,
+ .ih_ver = {
+ .iv_major = 0,
+ .iv_minor = 1,
+ .iv_revision = 0,
+ .iv_build_num = 99,
+ },
+};