Remove deprecated WITH_HOST_DALVIK.

Bug: 13751317
Fix the Mac build:
 - disable x86 selector removal that causes OS/X 10.9 kernel panics,
 - madvise don't need does zero memory on the Mac, factor into MemMap
   routine,
 - switch to the elf.h in elfutils to avoid Linux kernel dependencies,
 - we can't rely on exclusive_owner_ being available from other pthread
   libraries so maintain our own when futexes aren't available (we
   can't rely on the OS/X 10.8 hack any more),
 - fix symbol naming in assembly code,
 - work around C library differences,
 - disable backtrace in DumpNativeStack to avoid a broken libbacktrace
   dependency,
 - disable main thread signal handling logic,
 - align the stack in stub_test,
 - use $(HOST_SHLIB_SUFFIX) rather than .so in host make file variables.

Not all host tests are passing on the Mac with this change. dex2oat
works as does running HelloWorld.
Change-Id: I5a232aedfb2028524d49daa6397a8e60f3ee40d3
diff --git a/compiler/Android.mk b/compiler/Android.mk
index 3cf7368..9a868fc 100644
--- a/compiler/Android.mk
+++ b/compiler/Android.mk
@@ -273,14 +273,12 @@
 
 endef
 
-ifeq ($(WITH_HOST_DALVIK),true)
-  # We always build dex2oat and dependencies, even if the host build is otherwise disabled, since they are used to cross compile for the target.
-  ifeq ($(ART_BUILD_NDEBUG),true)
-    $(eval $(call build-libart-compiler,host,ndebug))
-  endif
-  ifeq ($(ART_BUILD_DEBUG),true)
-    $(eval $(call build-libart-compiler,host,debug))
-  endif
+# We always build dex2oat and dependencies, even if the host build is otherwise disabled, since they are used to cross compile for the target.
+ifeq ($(ART_BUILD_NDEBUG),true)
+  $(eval $(call build-libart-compiler,host,ndebug))
+endif
+ifeq ($(ART_BUILD_DEBUG),true)
+  $(eval $(call build-libart-compiler,host,debug))
 endif
 ifeq ($(ART_BUILD_TARGET_NDEBUG),true)
   $(eval $(call build-libart-compiler,target,ndebug))
diff --git a/compiler/utils/arena_allocator.cc b/compiler/utils/arena_allocator.cc
index 6a39641..925d4a2 100644
--- a/compiler/utils/arena_allocator.cc
+++ b/compiler/utils/arena_allocator.cc
@@ -139,7 +139,7 @@
     if (kUseMemSet || !kUseMemMap) {
       memset(Begin(), 0, bytes_allocated_);
     } else {
-      madvise(Begin(), bytes_allocated_, MADV_DONTNEED);
+      map_->MadviseDontNeedAndZero();
     }
     bytes_allocated_ = 0;
   }