abseil-patches/001-determinism.patch

diff -ru abseil.orig/absl/container/internal/raw_hash_set.h abseil/absl/container/internal/raw_hash_set.h
--- abseil.orig/absl/container/internal/raw_hash_set.h	2019-06-30 20:26:47.151231330 -0700
+++ abseil/absl/container/internal/raw_hash_set.h	2019-07-12 18:05:38.959802013 -0700
@@ -295,10 +295,15 @@
 // The seed consists of the ctrl_ pointer, which adds enough entropy to ensure
 // non-determinism of iteration order in most cases.
 inline size_t HashSeed(const ctrl_t* ctrl) {
+#if DCTV_DETERMINISTIC_ABSEIL
+  (void) ctrl;
+  return 0;
+#else
   // The low bits of the pointer have little or no entropy because of
   // alignment. We shift the pointer to try to use higher entropy bits. A
   // good number seems to be 12 bits, because that aligns with page size.
   return reinterpret_cast<uintptr_t>(ctrl) >> 12;
+#endif
 }
 
 inline size_t H1(size_t hash, const ctrl_t* ctrl) {
diff -ru abseil.orig/absl/hash/internal/hash.cc abseil/absl/hash/internal/hash.cc
--- abseil.orig/absl/hash/internal/hash.cc	2019-06-30 20:26:47.163231365 -0700
+++ abseil/absl/hash/internal/hash.cc	2019-07-12 18:03:57.631770564 -0700
@@ -17,7 +17,9 @@
 namespace absl {
 namespace hash_internal {
 
+#if !DCTV_DETERMINISTIC_ABSEIL
 ABSL_CONST_INIT const void* const CityHashState::kSeed = &kSeed;
+#endif
 
 }  // namespace hash_internal
 }  // namespace absl
diff -ru abseil.orig/absl/hash/internal/hash.h abseil/absl/hash/internal/hash.h
--- abseil.orig/absl/hash/internal/hash.h	2019-06-30 20:26:47.163231365 -0700
+++ abseil/absl/hash/internal/hash.h	2019-07-12 18:05:54.415806870 -0700
@@ -760,9 +760,15 @@
   // On other platforms this is still going to be non-deterministic but most
   // probably per-build and not per-process.
   ABSL_ATTRIBUTE_ALWAYS_INLINE static uint64_t Seed() {
+#if DCTV_DETERMINISTIC_ABSEIL
+    return 0;
+#else
     return static_cast<uint64_t>(reinterpret_cast<uintptr_t>(kSeed));
+#endif
   }
+#if !DCTV_DETERMINISTIC_ABSEIL
   static const void* const kSeed;
+#endif
 
   uint64_t state_;
 };