From a6b4ae7738ac7a99ef11a77816ffee95bf5a1cbf Mon Sep 17 00:00:00 2001
From: Jason Yosinski <jason@yosinski.com>
Date: Tue, 20 Dec 2022 11:27:08 -0800
Subject: [PATCH] Added .ramfunc attribute to linker script to enable keeping
 functions in RAM.

---
 .../feather_m4/linker_scripts/gcc/flash_with_bootloader.ld    | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/variants/feather_m4/linker_scripts/gcc/flash_with_bootloader.ld b/variants/feather_m4/linker_scripts/gcc/flash_with_bootloader.ld
index 1bdea69ae..2c7e62a53 100644
--- a/variants/feather_m4/linker_scripts/gcc/flash_with_bootloader.ld
+++ b/variants/feather_m4/linker_scripts/gcc/flash_with_bootloader.ld
@@ -170,6 +170,10 @@ SECTIONS
 		KEEP(*(.fini_array))
 		PROVIDE_HIDDEN (__fini_array_end = .);
 
+		. = ALIGN(4);
+		/* Keep .ramfunc functions in RAM */
+		KEEP(*(.ramfunc))
+
 		KEEP(*(.jcr*))
 		. = ALIGN(16);
 		/* All data end */