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/runtime/gc/accounting/atomic_stack.h b/runtime/gc/accounting/atomic_stack.h
index bd04473..2c72ba1 100644
--- a/runtime/gc/accounting/atomic_stack.h
+++ b/runtime/gc/accounting/atomic_stack.h
@@ -49,10 +49,7 @@
     front_index_.StoreRelaxed(0);
     back_index_.StoreRelaxed(0);
     debug_is_sorted_ = true;
-    int result = madvise(begin_, sizeof(T) * capacity_, MADV_DONTNEED);
-    if (result == -1) {
-      PLOG(WARNING) << "madvise failed";
-    }
+    mem_map_->MadviseDontNeedAndZero();
   }
 
   // Beware: Mixing atomic pushes and atomic pops will cause ABA problem.
diff --git a/runtime/gc/accounting/card_table.cc b/runtime/gc/accounting/card_table.cc
index 43a173e..a95c003 100644
--- a/runtime/gc/accounting/card_table.cc
+++ b/runtime/gc/accounting/card_table.cc
@@ -96,7 +96,7 @@
 
 void CardTable::ClearCardTable() {
   COMPILE_ASSERT(kCardClean == 0, clean_card_must_be_0);
-  madvise(mem_map_->Begin(), mem_map_->Size(), MADV_DONTNEED);
+  mem_map_->MadviseDontNeedAndZero();
 }
 
 bool CardTable::AddrIsInCardTable(const void* addr) const {
diff --git a/runtime/gc/accounting/space_bitmap.cc b/runtime/gc/accounting/space_bitmap.cc
index c294bae..224b33e 100644
--- a/runtime/gc/accounting/space_bitmap.cc
+++ b/runtime/gc/accounting/space_bitmap.cc
@@ -79,12 +79,8 @@
 
 template<size_t kAlignment>
 void SpaceBitmap<kAlignment>::Clear() {
-  if (bitmap_begin_ != NULL) {
-    // This returns the memory to the system.  Successive page faults will return zeroed memory.
-    int result = madvise(bitmap_begin_, bitmap_size_, MADV_DONTNEED);
-    if (result == -1) {
-      PLOG(FATAL) << "madvise failed";
-    }
+  if (bitmap_begin_ != nullptr) {
+    mem_map_->MadviseDontNeedAndZero();
   }
 }