创建，添加sdram

rt-thread/components/lwp/arch/aarch64/common/reloc.c

@@ -0,0 +1,28 @@
+#include <rtthread.h>
+#include <stdint.h>
+#include <string.h>
+#include <elf.h>
+#ifdef ARCH_MM_MMU
+#include <mmu.h>
+#include <page.h>
+#endif
+
+#define Elf_Word Elf64_Word
+#define Elf_Addr Elf64_Addr
+#define Elf_Half Elf64_Half
+#define Elf_Ehdr Elf64_Ehdr                                                   #define Elf_Phdr Elf64_Phdr
+#define Elf_Shdr Elf64_Shdr
+
+typedef struct
+{
+    Elf_Word st_name;
+    Elf_Addr st_value;
+    Elf_Word st_size;
+    unsigned char st_info;
+    unsigned char st_other;
+    Elf_Half st_shndx;
+} Elf_sym;
+
+void arch_elf_reloc(void *text_start, void *rel_dyn_start, size_t rel_dyn_size, void *got_start, size_t got_size, Elf_sym *dynsym)
+{
+}