Don't override clock_gettime in the KernelTimeout and Waiter

tests under sanitizers. The overrides break the sanitizers.

PiperOrigin-RevId: 524037272
Change-Id: I85b87d3870c488cb316505e94b394c6f98e9f60f

absl/synchronization/BUILD.bazel

@@ -351,6 +351,7 @@ cc_test(
         ":kernel_timeout_internal",
         ":synchronization",
         ":thread_pool",
+        "//absl/base:config",
         "//absl/random",
         "//absl/time",
         "@com_google_googletest//:gtest_main",

absl/synchronization/CMakeLists.txt

@@ -259,6 +259,7 @@ absl_cc_test(
   COPTS
     ${ABSL_TEST_COPTS}
   DEPS
+    absl::config
     absl::kernel_timeout_internal
     absl::random_random
     absl::synchronization

absl/synchronization/internal/kernel_timeout_test.cc

@@ -18,16 +18,19 @@
 #include <chrono>  // NOLINT(build/c++11)
 #include <limits>
 
-#include "absl/random/random.h"
-#include "gtest/gtest.h"
 #include "absl/base/config.h"
+#include "absl/random/random.h"
 #include "absl/time/clock.h"
 #include "absl/time/time.h"
+#include "gtest/gtest.h"
 
-// Test go/btm support by randomizing the value clock_gettime() for
+// Test go/btm support by randomizing the value of clock_gettime() for
 // CLOCK_MONOTONIC. This works by overriding a weak symbol in glibc.
 // We should be resistant to this randomization when !SupportsSteadyClock().
-#ifdef __GOOGLE_GRTE_VERSION__
+#if defined(__GOOGLE_GRTE_VERSION__) &&      \
+    !defined(ABSL_HAVE_ADDRESS_SANITIZER) && \
+    !defined(ABSL_HAVE_MEMORY_SANITIZER) &&  \
+    !defined(ABSL_HAVE_THREAD_SANITIZER)
 extern "C" int __clock_gettime(clockid_t c, struct timespec* ts);
 
 extern "C" int clock_gettime(clockid_t c, struct timespec* ts) {
@@ -40,7 +43,7 @@ extern "C" int clock_gettime(clockid_t c, struct timespec* ts) {
   }
   return __clock_gettime(c, ts);
 }
-#endif  // __GOOGLE_GRTE_VERSION__
+#endif
 
 namespace {
 

absl/synchronization/internal/waiter_test.cc

@@ -18,6 +18,7 @@
 #include <iostream>
 #include <ostream>
 
+#include "absl/base/config.h"
 #include "absl/random/random.h"
 #include "absl/synchronization/internal/create_thread_identity.h"
 #include "absl/synchronization/internal/futex_waiter.h"
@@ -31,10 +32,13 @@
 #include "absl/time/time.h"
 #include "gtest/gtest.h"
 
-// Test go/btm support by randomizing the value clock_gettime() for
+// Test go/btm support by randomizing the value of clock_gettime() for
 // CLOCK_MONOTONIC. This works by overriding a weak symbol in glibc.
 // We should be resistant to this randomization when !SupportsSteadyClock().
-#ifdef __GOOGLE_GRTE_VERSION__
+#if defined(__GOOGLE_GRTE_VERSION__) &&      \
+    !defined(ABSL_HAVE_ADDRESS_SANITIZER) && \
+    !defined(ABSL_HAVE_MEMORY_SANITIZER) &&  \
+    !defined(ABSL_HAVE_THREAD_SANITIZER)
 extern "C" int __clock_gettime(clockid_t c, struct timespec* ts);
 
 extern "C" int clock_gettime(clockid_t c, struct timespec* ts) {
@@ -47,7 +51,7 @@ extern "C" int clock_gettime(clockid_t c, struct timespec* ts) {
   }
   return __clock_gettime(c, ts);
 }
-#endif  // __GOOGLE_GRTE_VERSION__
+#endif
 
 namespace {