From 588cff38099fa1594d8be32e1fafd66e28249a2c Mon Sep 17 00:00:00 2001
From: schneider <schneider@blinkenlichts.net>
Date: Sun, 26 Apr 2020 01:38:52 +0200
Subject: [PATCH] change(stack): Initialize stack to 0xAA to aid debugging
overflows
---
.../Maxim/MAX32665/Source/GCC/startup_max32665.S | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/lib/sdk/Libraries/CMSIS/Device/Maxim/MAX32665/Source/GCC/startup_max32665.S b/lib/sdk/Libraries/CMSIS/Device/Maxim/MAX32665/Source/GCC/startup_max32665.S
index edea61de9..8022b65fe 100644
--- a/lib/sdk/Libraries/CMSIS/Device/Maxim/MAX32665/Source/GCC/startup_max32665.S
+++ b/lib/sdk/Libraries/CMSIS/Device/Maxim/MAX32665/Source/GCC/startup_max32665.S
@@ -250,6 +250,19 @@ ecc_init_exit:
ldr r0, =__StackTop
mov sp, r0
+/*
+ * Loop to initialize out stack section to aid debugging.
+ */
+ ldr r1, =__StackLimit
+ ldr r2, =__StackTop
+
+ movs r0, 0xAAAAAAAA
+.LC3:
+ cmp r1, r2
+ itt lt
+ strlt r0, [r1], #4
+ blt .LC3
+
/* PreInit runs before any RAM initialization. Example usage: DDR setup, etc. */
ldr r0, =PreInit
--
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