Write protect executable pages in the VM.

runtime/vm/freelist_test.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "platform/assert.h"
 #include "vm/freelist.h"
 #include "vm/unit_test.h"
 
 namespace dart {
 
 TEST_CASE(FreeList) {
   FreeList* free_list = new FreeList();
   intptr_t kBlobSize = 1 * MB;
   intptr_t kSmallObjectSize = 4 * kWordSize;
   intptr_t kMediumObjectSize = 16 * kWordSize;
   intptr_t kLargeObjectSize = 8 * KB;
   uword blob = reinterpret_cast<uword>(malloc(kBlobSize));
   // Enqueue the large blob as one free block.
   free_list->Free(blob, kBlobSize);
   // Allocate a small object. Expect it to be positioned as the first element.
-  uword small_object = free_list->TryAllocate(kSmallObjectSize);
+  uword small_object = free_list->TryAllocate(kSmallObjectSize, false);
   EXPECT_EQ(blob, small_object);
   // Freeing and allocating should give us the same memory back.
   free_list->Free(small_object, kSmallObjectSize);
-  small_object = free_list->TryAllocate(kSmallObjectSize);
+  small_object = free_list->TryAllocate(kSmallObjectSize, false);
   EXPECT_EQ(blob, small_object);
   // Splitting the remainder further with small and medium objects.
-  uword small_object2 = free_list->TryAllocate(kSmallObjectSize);
+  uword small_object2 = free_list->TryAllocate(kSmallObjectSize, false);
   EXPECT_EQ(blob + kSmallObjectSize, small_object2);
-  uword med_object = free_list->TryAllocate(kMediumObjectSize);
+  uword med_object = free_list->TryAllocate(kMediumObjectSize, false);
   EXPECT_EQ(small_object2 + kSmallObjectSize, med_object);
   // Allocate a large object.
-  uword large_object = free_list->TryAllocate(kLargeObjectSize);
+  uword large_object = free_list->TryAllocate(kLargeObjectSize, false);
   EXPECT_EQ(med_object + kMediumObjectSize, large_object);
   // Make sure that small objects can still split the remainder.
-  uword small_object3 = free_list->TryAllocate(kSmallObjectSize);
+  uword small_object3 = free_list->TryAllocate(kSmallObjectSize, false);
   EXPECT_EQ(large_object + kLargeObjectSize, small_object3);
   // Split the large object.
   free_list->Free(large_object, kLargeObjectSize);
-  uword small_object4 = free_list->TryAllocate(kSmallObjectSize);
+  uword small_object4 = free_list->TryAllocate(kSmallObjectSize, false);
   EXPECT_EQ(large_object, small_object4);
   // Get the full remainder of the large object.
-  large_object = free_list->TryAllocate(kLargeObjectSize - kSmallObjectSize);
+  large_object =
+      free_list->TryAllocate(kLargeObjectSize - kSmallObjectSize, false);
   EXPECT_EQ(small_object4 + kSmallObjectSize, large_object);
   // Get another large object from the large unallocated remainder.
-  uword large_object2 = free_list->TryAllocate(kLargeObjectSize);
+  uword large_object2 = free_list->TryAllocate(kLargeObjectSize, false);
   EXPECT_EQ(small_object3 + kSmallObjectSize, large_object2);
   // Delete the memory associated with the test.
   free(reinterpret_cast<void*>(blob));
   delete free_list;
 }
 
 }  // namespace dart