Use same format for scratch and slot trailer
Prior to this change, the scratch image trailer had a different format
from a slot image trailer. Specifically:
1. The scratch trailer only contained a single set of status entries
(three bytes); the slot trailer contained `BOOT_STATUS_MAX_ENTRIES`
sets of status entries.
2. The scratch trailer did not contain the `copy_done` field.
This inconsistency required some extra conditional logic in the trailer
handling code. It is simpler to just use the same trailer format
everywhere.
This commit removes this inconsistency. Now, the scratch trailer
structure is identical to that of the slot trailer.
Signed-off-by: Christopher Collins <ccollins@apache.org>
diff --git a/boot/bootutil/src/bootutil_priv.h b/boot/bootutil/src/bootutil_priv.h
index dba19c6..a5ca42f 100644
--- a/boot/bootutil/src/bootutil_priv.h
+++ b/boot/bootutil/src/bootutil_priv.h
@@ -180,7 +180,7 @@
int bootutil_verify_sig(uint8_t *hash, uint32_t hlen, uint8_t *sig,
size_t slen, uint8_t key_id);
-uint32_t boot_slots_trailer_sz(uint8_t min_write_sz);
+uint32_t boot_trailer_sz(uint8_t min_write_sz);
int boot_status_entries(const struct flash_area *fap);
uint32_t boot_status_off(const struct flash_area *fap);
int boot_read_swap_state(const struct flash_area *fap,