From 619be720d3f1686b6cad4a1e0781c67f995a2a64 Mon Sep 17 00:00:00 2001
From: Stanislaw Kaushanski <stas@minres.com>
Date: Mon, 16 Oct 2023 13:04:11 +0200
Subject: [PATCH] tohost is not required in hifive1 env

---
 bare-metal-bsp/env/hifive1/link.lds | 2 +-
 bare-metal-bsp/env/iss/platform.h   | 1 +
 bare-metal-bsp/libwrap/sys/_exit.c  | 2 ++
 3 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/bare-metal-bsp/env/hifive1/link.lds b/bare-metal-bsp/env/hifive1/link.lds
index 76a2e14..1781076 100644
--- a/bare-metal-bsp/env/hifive1/link.lds
+++ b/bare-metal-bsp/env/hifive1/link.lds
@@ -5,7 +5,7 @@ ENTRY( _start )
 MEMORY
 {
   flash (rxai!w) : ORIGIN = 0x20400000, LENGTH = 512M
-  ram (wxa!ri) : ORIGIN = 0x80000000, LENGTH = 512K
+  ram (wxa!ri) : ORIGIN = 0x80000000, LENGTH = 1M
 }
 
 PHDRS
diff --git a/bare-metal-bsp/env/iss/platform.h b/bare-metal-bsp/env/iss/platform.h
index 59e6fd5..0407391 100644
--- a/bare-metal-bsp/env/iss/platform.h
+++ b/bare-metal-bsp/env/iss/platform.h
@@ -6,6 +6,7 @@
 // Some things missing from the official encoding.h
 #define MCAUSE_INT         0x80000000
 #define MCAUSE_CAUSE       0x7FFFFFFF
+#define USE_TOHOST 1
 
 #include "rtl/const.h"
 /****************************************************************************
diff --git a/bare-metal-bsp/libwrap/sys/_exit.c b/bare-metal-bsp/libwrap/sys/_exit.c
index 7dab930..1f5afa9 100644
--- a/bare-metal-bsp/libwrap/sys/_exit.c
+++ b/bare-metal-bsp/libwrap/sys/_exit.c
@@ -16,7 +16,9 @@ void __wrap__exit(int code)
   write(STDERR_FILENO, message, sizeof(message) - 1);
   write_hex(STDERR_FILENO, code);
   write(STDERR_FILENO, "\n", 1);
+#ifdef USE_TOHOST
   tohost = code+1;
+#endif
   write(STDERR_FILENO, "\x04", 1);
   for (;;);
 }