Revert "L-MR1 specific fixes"

This reverts commit 1cd0c6777f35b531c9ce78397d0915aa521b3e87.
diff --git a/linker/linker.h b/linker/linker.h
index b985a99..8afeb14 100644
--- a/linker/linker.h
+++ b/linker/linker.h
@@ -89,7 +89,7 @@
 #define FLAG_LINKER     0x00000010 // The linker itself
 #define FLAG_NEW_SOINFO 0x40000000 // new soinfo format
 
-#define SOINFO_VERSION 0
+#define SOINFO_VERSION 1
 
 #define SOINFO_NAME_LEN 128
 
diff --git a/tests/dlfcn_test.cpp b/tests/dlfcn_test.cpp
index b54d13a..1bf186b 100644
--- a/tests/dlfcn_test.cpp
+++ b/tests/dlfcn_test.cpp
@@ -90,7 +90,7 @@
 }
 
 // ifuncs are only supported on intel and arm64 for now
-#if defined(__i386__) || defined(__x86_64__)
+#if defined (__aarch64__) || defined(__i386__) || defined(__x86_64__)
 TEST(dlfcn, ifunc) {
   typedef const char* (*fn_ptr)();
 
diff --git a/tests/libs/Android.mk b/tests/libs/Android.mk
index cac3140..53cd0c6 100644
--- a/tests/libs/Android.mk
+++ b/tests/libs/Android.mk
@@ -470,7 +470,7 @@
 # -----------------------------------------------------------------------------
 # Library used by ifunc tests
 # -----------------------------------------------------------------------------
-ifeq ($(TARGET_ARCH),$(filter $(TARGET_ARCH),x86 x86_64))
+ifeq ($(TARGET_ARCH),$(filter $(TARGET_ARCH),arm64 x86 x86_64))
     libtest_ifunc_src_files := \
         dlopen_testlib_ifunc.c
 
@@ -479,6 +479,13 @@
     build_type := target
     build_target := SHARED_LIBRARY
 
+    ifeq ($(TARGET_ARCH),arm64)
+      libtest_ifunc_multilib := 64
+      # TODO: This is a workaround - remove it once gcc
+      # removes its Android ifunc checks
+      libtest_ifunc_cflags := -mglibc
+    endif
+
     include $(TEST_PATH)/Android.build.mk
 endif