Add misc_writer.
bootloader_message.h currently divides /misc into four segments. The
space between 2K and 16K is reserved for vendor use (e.g. bootloader
persists flags). This CL adds a vendor tool "misc_writer", to allow
writing data to the vendor space in /misc, before getting a dedicated
HAL for accessing /misc partition (b/131775112).
Targets need to explicitly include the module, then invoke the
executable to write data. For example, the following command will write
3-byte data ("0xABCDEF") to offset 4 in vendor space (i.e. 2048 + 4 in
/misc).
$ /vendor/bin/misc_writer --vendor-space-offset 4 --hex-string 0xABCDEF
Bug: 132906936
Test: Run recovery_unit_test on crosshatch.
Test: Call the command via init.hardware.rc on crosshatch. Check that
the call finishes successfully. Then check the contents written to
/misc (`dd bs=1 skip=2048 if=/dev/block/sda2 count=32 | xxd`).
Change-Id: I79548fc63fc79b705a0320868690569c3106949f
Merged-In: I79548fc63fc79b705a0320868690569c3106949f
(cherry picked from commit 7ae01698424cc3adf635c324961b1405594f5156)
diff --git a/bootloader_message/Android.bp b/bootloader_message/Android.bp
index 5cd2132..450dad0 100644
--- a/bootloader_message/Android.bp
+++ b/bootloader_message/Android.bp
@@ -14,9 +14,8 @@
// limitations under the License.
//
-cc_library {
- name: "libbootloader_message",
- recovery_available: true,
+cc_defaults {
+ name: "libbootloader_message_defaults",
srcs: ["bootloader_message.cpp"],
cflags: [
"-Wall",
@@ -24,7 +23,25 @@
],
shared_libs: [
"libbase",
- "libfs_mgr",
+ ],
+ static_libs: [
+ "libfstab",
],
export_include_dirs: ["include"],
}
+
+cc_library {
+ name: "libbootloader_message",
+ defaults: [
+ "libbootloader_message_defaults",
+ ],
+ recovery_available: true,
+}
+
+cc_library_static {
+ name: "libbootloader_message_vendor",
+ defaults: [
+ "libbootloader_message_defaults",
+ ],
+ vendor: true,
+}