Minor zip cleanups
Change-Id: Iaa2552245e9dac5fabc6a9fb553174e4d5d84142
diff --git a/src/globals.h b/src/globals.h
index 2826bbd..b7096e6 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -32,6 +32,14 @@
const int kBitsPerWord = kWordSize * kBitsPerByte;
const int kBitsPerInt = kIntSize * kBitsPerByte;
+
+// System page size. Normally you're expected to get this from
+// sysconf(_SC_PAGESIZE) or some system-specific define (usually
+// PAGESIZE or PAGE_SIZE). If we use a simple compile-time constant
+// the compiler can generate appropriate masks directly, so we define
+// it here and verify it as the runtime is starting up.
+//
+// Must be a power of 2.
const int kPageSize = 4096;
} // namespace art