[PATCH] D31947: [scudo] Android support groundwork

Kostya Kortchinsky via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon Apr 17 13:37:08 PDT 2017


cryptoad marked an inline comment as done.
cryptoad added inline comments.


================
Comment at: lib/scudo/scudo_allocator.cpp:317
+                 bool ForceZeroContents = false) {
+    initThreadMaybe();
+    if (UNLIKELY(!IsPowerOfTwo(Alignment))) {
----------------
eugenis wrote:
> Calling initThreadMaybe() from all entry points looks error-prone. Is it ok (performance-wise) to do lazy initialization in getCurrentThreadContext?
Things like BackendAllocator.ReturnNullOrDieOnBadRequest will require initialization, but are called prior to getCurrentThreadContext.
I am also actually not super happy about the way this turned out. The alternative would be a preinit or equivalent?


================
Comment at: lib/scudo/scudo_thread.h:10
+///
+/// TODO(kostyak): description.
+///
----------------
eugenis wrote:
> an actual description would be nice
Sorry, user failure. I will address that.


https://reviews.llvm.org/D31947





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