Export of internal Abseil changes.

--
22fceefcf070a0cf89bf1846bee16a9d36ad4161 by Derek Mauro <dmauro@google.com>:

Use function static for once initialization of flag registry.

This is a workaround for the MSVC debug constexpr initialization issue
in absl::once_flag.

GitHub #304

PiperOrigin-RevId: 248169007

--
97bbe6a5233802b61e758c55f7ba8926539cc4ca by Chris Kennelly <ckennelly@google.com>:

Internal change

PiperOrigin-RevId: 248139347

--
e72640ee079b9fa44e2c7f925fa0a608bcfea515 by Derek Mauro <dmauro@google.com>:

Re-write flags config. It doesn't have to be written in the convoluted
way it currently is in the opensource-only code path.

PiperOrigin-RevId: 248010502

--
2a72552511b8086c78cb43012c1644e519b3807e by Abseil Team <absl-team@google.com>:

Handle pthread_getschedparam() failure.

Log an error message if pthread_getschedparam() fails.

In Android's Media Framework, libminijail (which I believe is a sandbox)
aborts the process if pthread_getschedparam() is called:

  media.swcodec: libminijail[7526]: blocked syscall: sched_getparam
  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  /system/bin/tombstoned: received crash request for pid 7526

Although this CL cannot handle that extreme failure mode, it handles an
error return from pthread_getschedparam() and won't use the uninitialized
param.sched_priority value in that case.

PiperOrigin-RevId: 247999953

--
bb154a92be37987d00d652c7c792594f2f515d83 by Abseil Team <absl-team@google.com>:

Allow intrinsic int128 to be set for __aarch64__ targets.

PiperOrigin-RevId: 247977594
GitOrigin-RevId: 22fceefcf070a0cf89bf1846bee16a9d36ad4161
Change-Id: I1f7ccfd82eb71446277a8e6f542fe835ac173d71

1 files changed, 2 insertions, 16 deletions

diff --git a/absl/flags/internal/registry.cc b/absl/flags/internal/registry.cc
index 435c5b0be330..e52cbb683b9e 100644
--- a/absl/flags/internal/registry.cc
+++ b/absl/flags/internal/registry.cc
@@ -15,7 +15,6 @@
 
 #include "absl/flags/internal/registry.h"
 
-#include "absl/base/call_once.h"
 #include "absl/base/dynamic_annotations.h"
 #include "absl/base/internal/raw_logging.h"
 #include "absl/flags/config.h"
@@ -151,12 +150,6 @@ class FlagRegistry {
 
   FlagPtrMap flag_ptr_map_;
 
-  static FlagRegistry* global_registry_;  // a singleton registry
-
-  static absl::once_flag global_registry_once_;
-
-  static void InitGlobalRegistry();
-
   absl::Mutex lock_;
 
   // Disallow
@@ -164,16 +157,9 @@ class FlagRegistry {
   FlagRegistry& operator=(const FlagRegistry&);
 };
 
-// Get the singleton FlagRegistry object
-FlagRegistry* FlagRegistry::global_registry_ = nullptr;
-absl::once_flag FlagRegistry::global_registry_once_;
-
-void FlagRegistry::InitGlobalRegistry() { global_registry_ = new FlagRegistry; }
-
 FlagRegistry* FlagRegistry::GlobalRegistry() {
-  absl::call_once(global_registry_once_, &InitGlobalRegistry);
-
-  return global_registry_;
+  static FlagRegistry* global_registry = new FlagRegistry;
+  return global_registry;
 }
 
 namespace {