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, 14 insertions, 20 deletions

diff --git a/absl/flags/config.h b/absl/flags/config.h
index a734af4..a9fd97a 100644
--- a/absl/flags/config.h
+++ b/absl/flags/config.h
@@ -17,38 +17,32 @@
 #define ABSL_FLAGS_CONFIG_H_
 
 // Determine if we should strip string literals from the Flag objects.
+// By default we strip string literals on mobile platforms.
 #if !defined(ABSL_FLAGS_STRIP_NAMES)
 
-// Non-mobile linux platforms don't strip string literals.
-#if (defined(__linux__) || defined(__Fuchsia__)) && !defined(__ANDROID__)
-#define ABSL_FLAGS_STRIP_NAMES 0
+#if defined(__ANDROID__)
+#define ABSL_FLAGS_STRIP_NAMES 1
 
-// So do Macs (not iOS or embedded Apple platforms).
 #elif defined(__APPLE__)
 #include <TargetConditionals.h>
-#if !TARGET_OS_IPHONE && !TARGET_OS_EMBEDDED
-#define ABSL_FLAGS_STRIP_NAMES 0
+#if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
+#define ABSL_FLAGS_STRIP_NAMES 1
+#elif defined(TARGET_OS_EMBEDDED) && TARGET_OS_EMBEDDED
+#define ABSL_FLAGS_STRIP_NAMES 1
+#endif  // TARGET_OS_*
 #endif
 
-// And Windows.
-#elif defined(_WIN32)
-#define ABSL_FLAGS_STRIP_NAMES 0
+#endif  // !defined(ABSL_FLAGS_STRIP_NAMES)
 
-// And Myriad.
-#elif defined(__myriad2__)
+#if !defined(ABSL_FLAGS_STRIP_NAMES)
+// If ABSL_FLAGS_STRIP_NAMES wasn't set on the command line or above,
+// the default is not to strip.
 #define ABSL_FLAGS_STRIP_NAMES 0
-
 #endif
-#endif  // !defined(ABSL_FLAGS_STRIP_NAMES)
 
-#if ABSL_FLAGS_STRIP_NAMES
 #if !defined(ABSL_FLAGS_STRIP_HELP)
-#define ABSL_FLAGS_STRIP_HELP 1
-#endif
-#else
-#if !defined(ABSL_FLAGS_STRIP_HELP)
-#define ABSL_FLAGS_STRIP_HELP 0
-#endif
+// By default, if we strip names, we also strip help.
+#define ABSL_FLAGS_STRIP_HELP ABSL_FLAGS_STRIP_NAMES
 #endif
 
 #endif  // ABSL_FLAGS_CONFIG_H_