Implement heap poisoning in ART's Optimizing compiler.

- Instrument ARM, ARM64, x86 and x86-64 code generators.
- Note: To turn heap poisoning on in Optimizing, set the
  environment variable `ART_HEAP_POISONING' to "true"
  before compiling ART.

Bug: 12687968
Change-Id: Ib3120b38cf805a8a50207a314b9ccc90c8d93740

1 files changed, 6 insertions, 0 deletions

diff --git a/compiler/dex/quick/quick_compiler.cc b/compiler/dex/quick/quick_compiler.cc
index 28c485a41c..39496a4b30 100644
--- a/compiler/dex/quick/quick_compiler.cc
+++ b/compiler/dex/quick/quick_compiler.cc
@@ -653,6 +653,12 @@ CompiledMethod* QuickCompiler::Compile(const DexFile::CodeItem* code_item,
                                        uint32_t method_idx,
                                        jobject class_loader,
                                        const DexFile& dex_file) const {
+  if (kPoisonHeapReferences) {
+    VLOG(compiler) << "Skipping method : " << PrettyMethod(method_idx, dex_file)
+                   << "  Reason = Quick does not support heap poisoning.";
+    return nullptr;
+  }
+
   // TODO: check method fingerprint here to determine appropriate backend type.  Until then, use
   // build default.
   CompilerDriver* driver = GetCompilerDriver();