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| author | David Feng <fenghua@phytium.com.cn> | 2013-12-14 11:47:35 +0800 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2014-01-09 16:08:44 +0100 |
| commit | 0ae7653128c80a4f2920cbe9b124792c2fd9d9e0 (patch) | |
| tree | 14fea7a80e4ea84c7b6a3bc32298daeec55054c7 /examples | |
| parent | 54799e4596bf8af33fd4a8dee153be7011c06d8d (diff) | |
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.c | 15 |
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- |