From 286b047fbe29a7c54448c88dac025f78d38681a9 Mon Sep 17 00:00:00 2001
From: Andrew Waterman <andrew@sifive.com>
Date: Tue, 21 Mar 2017 16:42:23 -0700
Subject: Use gp for TESTNUM, so compiled C code won't touch it

---
 p/riscv_test.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/p/riscv_test.h b/p/riscv_test.h
index fe71eae..52d7fe9 100644
--- a/p/riscv_test.h
+++ b/p/riscv_test.h
@@ -173,7 +173,7 @@ reset_vector:                                                           \
         li TESTNUM, 1;                                                  \
         ecall
 
-#define TESTNUM x28
+#define TESTNUM gp
 #define RVTEST_FAIL                                                     \
         fence;                                                          \
 1:      beqz TESTNUM, 1b;                                               \
-- 
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