From b5af1edf0dc3f009ac6b739cc260a2add8fc043d Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <andrew@tridgell.net>
Date: Mon, 28 Oct 2019 10:45:54 +1100
Subject: [PATCH] HAL_ChibiOS: moved app_descriptor to start of flash

this prevents the bootloader from finding it's own image as a false
posititve in searching for the app_descriptor
---
 libraries/AP_HAL_ChibiOS/hwdef/common/common.ld | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libraries/AP_HAL_ChibiOS/hwdef/common/common.ld b/libraries/AP_HAL_ChibiOS/hwdef/common/common.ld
index a1644a499b..bdabc12869 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/common/common.ld
+++ b/libraries/AP_HAL_ChibiOS/hwdef/common/common.ld
@@ -70,6 +70,9 @@ SECTIONS
 
     .text : ALIGN(4) SUBALIGN(4)
     {
+        /* we want app_descriptor near the start of flash so a false
+           positive isn't found by the bootloader (eg. ROMFS) */
+        KEEP(*(.app_descriptor));
         *(.text)
         *(.text.*)
         *(.rodata)