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

1 files changed, 6 insertions, 0 deletions

diff --git a/runtime/gc/allocator/rosalloc.h b/runtime/gc/allocator/rosalloc.h
index 9464331c70..a439188858 100644
--- a/runtime/gc/allocator/rosalloc.h
+++ b/runtime/gc/allocator/rosalloc.h
@@ -110,11 +110,17 @@ class RosAlloc {
         byte_size -= kPageSize;
         if (byte_size > 0) {
           if (release_pages) {
+            if (!kMadviseZeroes) {
+              memset(start, 0, byte_size);
+            }
             madvise(start, byte_size, MADV_DONTNEED);
           }
         }
       } else {
         if (release_pages) {
+          if (!kMadviseZeroes) {
+            memset(start, 0, byte_size);
+          }
           madvise(start, byte_size, MADV_DONTNEED);
         }
       }