disable stack trace unittests for uClibc builds

base/debug/stack_trace_unittest.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <limits>
 #include <sstream>
 #include <string>
 
 #include "base/debug/stack_trace.h"
 #include "base/logging.h"
@@ skipping 17 matching lines @@
 #endif
 
 // Note: On Linux, this test currently only fully works on Debug builds.
 // See comments in the #ifdef soup if you intend to change this.
 #if defined(OS_WIN)
 // Always fails on Windows: crbug.com/32070
 #define MAYBE_OutputToStream DISABLED_OutputToStream
 #else
 #define MAYBE_OutputToStream OutputToStream
 #endif
+#if !defined(__UCLIBC__)
 TEST_F(StackTraceTest, MAYBE_OutputToStream) {
   StackTrace trace;
 
   // Dump the trace into a string.
   std::ostringstream os;
   trace.OutputToStream(&os);
   std::string backtrace_message = os.str();
 
   // ToString() should produce the same output.
   EXPECT_EQ(backtrace_message, trace.ToString());
@@ skipping 75 matching lines @@
   StackTrace trace;
   std::ostringstream os;
   trace.OutputToStream(&os);
   VLOG(1) << os.str();
 }
 
 // The test is used for manual testing, e.g., to see the raw output.
 TEST_F(StackTraceTest, DebugPrintBacktrace) {
   StackTrace().Print();
 }
+#endif  // !defined(__UCLIBC__)
 
 #if defined(OS_POSIX) && !defined(OS_ANDROID)
 #if !defined(OS_IOS)
 MULTIPROCESS_TEST_MAIN(MismatchedMallocChildProcess) {
   char* pointer = new char[10];
   delete pointer;
   return 2;
 }
 
 // Regression test for StackDumpingSignalHandler async-signal unsafety.
@@ skipping 77 matching lines @@
   EXPECT_EQ("688", itoa_r_wrapper(0x688, 128, 16, 1));
   EXPECT_EQ("688", itoa_r_wrapper(0x688, 128, 16, 2));
   EXPECT_EQ("688", itoa_r_wrapper(0x688, 128, 16, 3));
   EXPECT_EQ("0688", itoa_r_wrapper(0x688, 128, 16, 4));
   EXPECT_EQ("00688", itoa_r_wrapper(0x688, 128, 16, 5));
 }
 #endif  // defined(OS_POSIX) && !defined(OS_ANDROID)
 
 }  // namespace debug
 }  // namespace base