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-rw-r--r--bootloader.h15
1 files changed, 14 insertions, 1 deletions
diff --git a/bootloader.h b/bootloader.h
index 712aa1a2d..c2895dd91 100644
--- a/bootloader.h
+++ b/bootloader.h
@@ -38,11 +38,24 @@ extern "C" {
* The recovery field is only written by linux and used
* for the system to send a message to recovery or the
* other way around.
+ *
+ * The stage field is written by packages which restart themselves
+ * multiple times, so that the UI can reflect which invocation of the
+ * package it is. If the value is of the format "#/#" (eg, "1/3"),
+ * the UI will add a simple indicator of that status.
*/
struct bootloader_message {
char command[32];
char status[32];
- char recovery[1024];
+ char recovery[768];
+
+ // The 'recovery' field used to be 1024 bytes. It has only ever
+ // been used to store the recovery command line, so 768 bytes
+ // should be plenty. We carve off the last 256 bytes to store the
+ // stage string (for multistage packages) and possible future
+ // expansion.
+ char stage[32];
+ char reserved[224];
};
/* Read and write the bootloader command from the "misc" partition.