Add relocation support for arm.

Signed-off-by: Daniel Palmer <daniel@thingy.jp>
---
 tools/include/nolibc/arch-arm.h | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/tools/include/nolibc/arch-arm.h b/tools/include/nolibc/arch-arm.h
index 251c42579028..7f69761eeab1 100644
--- a/tools/include/nolibc/arch-arm.h
+++ b/tools/include/nolibc/arch-arm.h
@@ -7,6 +7,10 @@
 #ifndef _NOLIBC_ARCH_ARM_H
 #define _NOLIBC_ARCH_ARM_H
 
+#define NOLIBC_ARCH_HAS_RELOC
+#define NOLIBC_ARCH_ELF32
+#define NOLIBC_ARCH_ELF_REL
+
 #include "compiler.h"
 #include "crt.h"
 
@@ -185,6 +189,19 @@
 })
 
 #ifndef NOLIBC_NO_RUNTIME
+static int __relocate_rel(unsigned long base, elf_rel *entry)
+{
+	switch (elf_r_type(entry->r_info)) {
+	case R_ARM_RELATIVE:
+		__relocate_rel_relative(base, entry);
+		break;
+	default:
+		return -1;
+	}
+
+	return 0;
+}
+
 /* startup code */
 void __attribute__((weak, noreturn)) __nolibc_entrypoint __no_stack_protector _start(void)
 {
-- 
2.51.0