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/collector/mark_sweep.cc b/runtime/gc/collector/mark_sweep.cc
index c062706..890036b 100644
--- a/runtime/gc/collector/mark_sweep.cc
+++ b/runtime/gc/collector/mark_sweep.cc
@@ -1130,9 +1130,7 @@
   allocations->Reset();
   timings_.EndSplit();
 
-  int success = madvise(sweep_array_free_buffer_mem_map_->BaseBegin(),
-                        sweep_array_free_buffer_mem_map_->BaseSize(), MADV_DONTNEED);
-  DCHECK_EQ(success, 0) << "Failed to madvise the sweep array free buffer pages.";
+  sweep_array_free_buffer_mem_map_->MadviseDontNeedAndZero();
 }
 
 void MarkSweep::Sweep(bool swap_bitmaps) {