From c6bfaf05464e7dd897f4c0051fa01fa692f0c89c Mon Sep 17 00:00:00 2001
From: Hongyu Liu <hongyu@minres.com>
Date: Fri, 14 Mar 2025 17:53:49 +0100
Subject: [PATCH] adds  volatile to array passed to tohost and updates bsp
 submodule

---
 bare-metal-bsp      |  2 +-
 hello-world/hello.c | 10 ++++++----
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/bare-metal-bsp b/bare-metal-bsp
index 3042e0e..ada4881 160000
--- a/bare-metal-bsp
+++ b/bare-metal-bsp
@@ -1 +1 @@
-Subproject commit 3042e0e1243ff816fa0bc3a24d71ae4501e1ca17
+Subproject commit ada4881d335e079b1ea655461e03e1e6fd90d63f
diff --git a/hello-world/hello.c b/hello-world/hello.c
index 29a9145..399a95e 100644
--- a/hello-world/hello.c
+++ b/hello-world/hello.c
@@ -19,13 +19,15 @@ extern volatile uint32_t tohost;
 extern volatile uint32_t fromhost;
 int main() {
   volatile int result = factorial(10);
-  char string[] = "hello world with write";
+  volatile char string[] = "hello world with write in hello";
+
+  volatile uint64_t payload[4] = {64, 0, (uintptr_t)string,
+                                  (strlen(string) + 1)};
+  tohost = (uint32_t)payload;
 
   write(STDOUT_FILENO, string, sizeof(string));
 
-  uint64_t payload[4] = {64, 0, (uintptr_t)string, (strlen(string) + 1)};
-  // tohost = (uint32_t)payload;
   printf("Factorial is %d", result);
-  //  printf("End of execution");
+  // printf("End of execution");
   return 0;
 }