examples: api: support arm64 target

support_api_for_arm64.patch

diff --git a/examples/api/crt0.S b/examples/api/crt0.S
index df2b542..d9313d0 100644
--- a/examples/api/crt0.S
+++ b/examples/api/crt0.S
@@ -26,7 +26,21 @@ syscall:
 	bctr
 
 #elif defined(CONFIG_ARM)
+#ifdef CONFIG_ARM64
+	.text
+	.globl _start
+_start:
+	ldr	x10, =search_hint
+	str	xzr, [x10]
+	b	main
+
 
+	.globl syscall
+syscall:
+	ldr	x10, =syscall_ptr
+	ldr	x30, [x10]
+	ret
+#else
 	.text
 	.globl _start
 _start:
@@ -39,6 +53,7 @@ _start:
 syscall:
 	ldr	ip, =syscall_ptr
 	ldr	pc, [ip]
+#endif
 
 #elif defined(CONFIG_MIPS)
 #include <asm/asm.h>
@@ -69,9 +84,9 @@ return_addr:
 #error No support for this arch!
 #endif
 
+	.align	8
 	.globl syscall_ptr
 syscall_ptr:
-	.align	8
 	.long	0
 
 	.globl search_hint
diff --git a/examples/api/demo.c b/examples/api/demo.c
index 8c30457..5c395ce 100644
--- a/examples/api/demo.c
+++ b/examples/api/demo.c
@@ -43,12 +43,12 @@ int main(int argc, char * const argv[])
 	if (sig->version > API_SIG_VERSION)
 		return -3;
 
-	printf("API signature found @%x\n", (unsigned int)sig);
+	printf("API signature found @%lx\n", (unsigned long)sig);
 	test_dump_sig(sig);
 
 	printf("\n*** Consumer API test ***\n");
-	printf("syscall ptr 0x%08x@%08x\n", (unsigned int)syscall_ptr,
-		(unsigned int)&syscall_ptr);
+	printf("syscall ptr 0x%08lx@%08lx\n", (unsigned long)syscall_ptr,
+		(unsigned long)&syscall_ptr);
 
 	/* console activities */
 	ub_putc('B');
@@ -203,7 +203,7 @@ void test_dump_sig(struct api_signature *sig)
 	printf("signature:\n");
 	printf("  version\t= %d\n", sig->version);
 	printf("  checksum\t= 0x%08x\n", sig->checksum);
-	printf("  sc entry\t= 0x%08x\n", (unsigned int)sig->syscall);
+	printf("  sc entry\t= 0x%08lx\n", (unsigned long)sig->syscall);
 }
 
 void test_dump_si(struct sys_info *si)
@@ -211,9 +211,9 @@ void test_dump_si(struct sys_info *si)
 	int i;
 
 	printf("sys info:\n");
-	printf("  clkbus\t= 0x%08x\n", (unsigned int)si->clk_bus);
-	printf("  clkcpu\t= 0x%08x\n", (unsigned int)si->clk_cpu);
-	printf("  bar\t\t= 0x%08x\n", (unsigned int)si->bar);
+	printf("  clkbus\t= 0x%08lx\n", (unsigned long)si->clk_bus);
+	printf("  clkcpu\t= 0x%08lx\n", (unsigned long)si->clk_cpu);
+	printf("  bar\t\t= 0x%08lx\n", (unsigned long)si->bar);
 
 	printf("---\n");
 	for (i = 0; i < si->mr_no; i++) {
@@ -296,7 +296,7 @@ void test_dump_di(int handle)
 	struct device_info *di = ub_dev_get(handle);
 
 	printf("device info (%d):\n", handle);
-	printf("  cookie\t= 0x%08x\n", (uint32_t)di->cookie);
+	printf("  cookie\t= 0x%08lx\n", (uintptr_t)di->cookie);
 	printf("  type\t\t= 0x%08x\n", di->type);
 
 	if (di->type == DEV_TYP_NET) {
diff --git a/examples/api/glue.c b/examples/api/glue.c
index 8aabf32..fc63ec8 100644
--- a/examples/api/glue.c
+++ b/examples/api/glue.c
@@ -41,8 +41,8 @@ static int valid_sig(struct api_signature *sig)
 int api_search_sig(struct api_signature **sig)
 {
 	unsigned char *sp;
-	uint32_t search_start = 0;
-	uint32_t search_end = 0;
+	uintptr_t search_start = 0;
+	uintptr_t search_end = 0;
 
 	if (sig == NULL)
 		return 0;