Subzero: Add Non-SFI support for x86-32.

crosstest/test_global_main.cpp

Index: crosstest/test_global_main.cpp
diff --git a/crosstest/test_global_main.cpp b/crosstest/test_global_main.cpp
index 5383cb7a0f1088dee990180e8e395123a7b30364..6b4eec777ed7598e65656e1bdea53f190292bd8d 100644
--- a/crosstest/test_global_main.cpp
+++ b/crosstest/test_global_main.cpp
@@ -39,6 +39,11 @@ struct Data *ExternName4 = &SimpleData;
 double ExternName5 = 3.44e26;
 
 int main(int argc, char **argv) {
+  // Prevent pnacl-opt from deleting "unused" globals.

[John, 2016/01/04 21:33:51]

why wasn't this a problem before?

[Jim Stichnoth, 2016/01/04 23:32:12]

It wasn't a problem presumably because native and sandbox use clang/pnacl-clang
to compile direct to executable and don't run the PNaCl ABI simplification
passes that would have remove these "unused" globals.

+  if (argc < 0) {
+    std::cout << &ExternName1 << &ExternName2 << &ExternName3 << &SimpleData
+              << &ExternName4 << ExternName5;
+  }
   size_t TotalTests = 0;
   size_t Passes = 0;
   size_t Failures = 0;