From 72c73ddec3d50776fda2fcd92854f0d9fc9d4a33 Mon Sep 17 00:00:00 2001
From: Macpaul Lin <macpaul@andestech.com>
Date: Tue, 11 Oct 2011 22:33:20 +0000
Subject: nds32: standalone support

Add standalone program related support for nds32 architecture.

Signed-off-by: Macpaul Lin <macpaul@andestech.com>
---
 examples/standalone/stubs.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

(limited to 'examples/standalone/stubs.c')

diff --git a/examples/standalone/stubs.c b/examples/standalone/stubs.c
index 507d38c..11c7565 100644
--- a/examples/standalone/stubs.c
+++ b/examples/standalone/stubs.c
@@ -167,8 +167,23 @@ gd_t *global_data;
 "	jmp %%g1\n"					\
 "	nop\n"						\
 	: : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "g1" );
-
+#elif defined(CONFIG_NDS32)
+/*
+ * r16 holds the pointer to the global_data. gp is call clobbered.
+ * not support reduced register (16 GPR).
+ */
+#define EXPORT_FUNC(x) \
+	asm volatile (			\
+"	.globl " #x "\n"		\
+#x ":\n"				\
+"	lwi	$r16, [$gp + (%0)]\n"	\
+"	lwi	$r16, [$r16 + (%1)]\n"	\
+"	jr	$r16\n"			\
+	: : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "$r16");
 #else
+/*"	addi	$sp, $sp, -24\n"	\
+"	br	$r16\n"			\*/
+
 #error stubs definition missing for this architecture
 #endif
 
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