Revert "Revert "Added mitigation for b/122921367""

This reverts commit ebfadfd82b.

Reason for revert: Breaks aosp_cf_x86_pasan: ld.lld: error: can't create dynamic relocation R_386_32 against local symbol in readonly segment; recompile object files with -fPIC or pass '-Wl,-z,notext' to allow text relocations in the output

Change-Id: I304b0eee72b67a1c90b0b3f4c9089276d4d8f07d

core/jni/com_android_internal_os_Zygote.cpp

@@ -14,6 +14,15 @@
  * limitations under the License.
  */
 
+/*
+ * Disable optimization of this file if we are compiling with the address
+ * sanitizer.  This is a mitigation for b/122921367 and can be removed once the
+ * bug is fixed.
+ */
+#if __has_feature(address_sanitizer)
+#pragma clang optimize off
+#endif
+
 #define LOG_TAG "Zygote"
 
 // sys/mount.h has to come before linux/fs.h due to redefinition of MS_RDONLY, MS_BIND, etc