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authorDavid Feng <fenghua@phytium.com.cn>2013-12-14 11:47:35 +0800
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2014-01-09 16:08:44 +0100
commit0ae7653128c80a4f2920cbe9b124792c2fd9d9e0 (patch)
tree14fea7a80e4ea84c7b6a3bc32298daeec55054c7 /examples
parent54799e4596bf8af33fd4a8dee153be7011c06d8d (diff)
downloadblackbird-obmc-uboot-0ae7653128c80a4f2920cbe9b124792c2fd9d9e0.tar.gz
blackbird-obmc-uboot-0ae7653128c80a4f2920cbe9b124792c2fd9d9e0.zip
arm64: core support
Relocation code based on a patch by Scott Wood, which is: Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: David Feng <fenghua@phytium.com.cn>
Diffstat (limited to 'examples')
-rw-r--r--examples/standalone/stubs.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/examples/standalone/stubs.c b/examples/standalone/stubs.c
index 5d2ab56995..32a19ce354 100644
--- a/examples/standalone/stubs.c
+++ b/examples/standalone/stubs.c
@@ -39,6 +39,20 @@ gd_t *global_data;
" bctr\n" \
: : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "r11");
#elif defined(CONFIG_ARM)
+#ifdef CONFIG_ARM64
+/*
+ * x18 holds the pointer to the global_data, x9 is a call-clobbered
+ * register
+ */
+#define EXPORT_FUNC(x) \
+ asm volatile ( \
+" .globl " #x "\n" \
+#x ":\n" \
+" ldr x9, [x18, %0]\n" \
+" ldr x9, [x9, %1]\n" \
+" br x9\n" \
+ : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "x9");
+#else
/*
* r9 holds the pointer to the global_data, ip is a call-clobbered
* register
@@ -50,6 +64,7 @@ gd_t *global_data;
" ldr ip, [r9, %0]\n" \
" ldr pc, [ip, %1]\n" \
: : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "ip");
+#endif
#elif defined(CONFIG_MIPS)
/*
* k0 ($26) holds the pointer to the global_data; t9 ($25) is a call-
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