experimental dynamic linker!

[musl] / arch / x86_64 / reloc.h

diff --git a/arch/x86_64/reloc.h b/arch/x86_64/reloc.h
new file mode 100644 (file)
index 0000000..2db6115
--- /dev/null
+++ b/arch/x86_64/reloc.h
@@ -0,0 +1,28 @@
+#include <stdint.h>
+#include <string.h>
+#include <elf.h>
+
+#define IS_COPY(x) ((x)==R_X86_64_COPY)
+
+static inline void do_single_reloc(size_t *reloc_addr, int type, size_t sym_val, size_t sym_size, unsigned char *base_addr, size_t addend)
+{
+       switch(type) {
+       case R_X86_64_GLOB_DAT:
+       case R_X86_64_JUMP_SLOT:
+       case R_X86_64_64:
+               *reloc_addr = sym_val + addend;
+               break;
+       case R_X86_64_32:
+               *(uint32_t *)reloc_addr = sym_val + addend;
+               break;
+       case R_X86_64_PC32:
+               *reloc_addr = sym_val + addend - (size_t)reloc_addr + (size_t)base_addr;
+               break;
+       case R_X86_64_RELATIVE:
+               *reloc_addr = (size_t)base_addr + addend;
+               break;
+       case R_X86_64_COPY:
+               memcpy(reloc_addr, (void *)sym_val, sym_size);
+               break;
+       }
+}