From c7413837aac7837d9fea9cf3f3b89f115d172a82 Mon Sep 17 00:00:00 2001
From: Ayke van Laethem <aykevanlaethem@gmail.com>
Date: Mon, 27 Sep 2021 19:26:11 +0200
Subject: [PATCH] riscv: align the heap to 16 bytes

This may be expected by the ABI. In particular, it means that stacks
allocated on the heap will be 16-byte aligned.
---
 targets/riscv.ld | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/targets/riscv.ld b/targets/riscv.ld
index 2b9f5027..eecac6b4 100644
--- a/targets/riscv.ld
+++ b/targets/riscv.ld
@@ -58,7 +58,7 @@ SECTIONS
 }
 
 /* For the memory allocator. */
-_heap_start = _ebss;
+_heap_start = ALIGN(_ebss, 16);
 _heap_end = ORIGIN(RAM) + LENGTH(RAM);
 _globals_start = _sdata;
 _globals_end = _ebss;