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arm64: core support

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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>
This commit is contained in:
David Feng
2013-12-14 11:47:35 +08:00
committed by Albert ARIBAUD
parent 54799e4596
commit 0ae7653128
38 changed files with 1884 additions and 23 deletions
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15
examples/standalone/stubs.c
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@@ -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-