Add a failing test for a race in newlib.

tests/threads/nacl.scons

 # -*- python -*-
 # Copyright 2008 The Native Client Authors.  All rights reserved.
 # Use of this source code is governed by a BSD-style license that can
 # be found in the LICENSE file.
 
 
 Import('env')
 
 # NOTE: the arm emulator does not handle atomic ops properly
 # NOTE: the default setting of 10k rounds is too slow on ARM
@@ skipping 27 matching lines @@
 
 env.ComponentProgram('simple_thread_test.nexe',
                      'simple_thread_test.c',
                      EXTRA_LIBS=['pthread'],
                      )
 node = env.CommandSelLdrTestNacl(
     'simple_thread_test.out',
     command=[env.File('simple_thread_test.nexe')],
     size='small',
     )
-# This test is extremely (and unpredictably) slow under Memcheck on the Karmic
-# buildbot because of what seems to be starvation on the critical section.
-# The second thread manages to acquire the CS only after ~30 seconds of
-# spinning.
-# Somehow this can not be reproduced on desktop machines.
 env.AddNodeToTestSuite(node, TEST_SUITES, 'run_simple_thread_test')
 
+env.ComponentProgram('newlib_stdio_test.nexe',
+                     'newlib_stdio_test.c',
+                     EXTRA_LIBS=['pthread'],
+                     )
+node = env.CommandSelLdrTestNacl(
+    'newlib_stdio_test.out',
+    command=[env.File('newlib_stdio_test.nexe')],
+    stdout_golden=env.File('newlib_stdio_test.stdout.golden'),
+    size='small',
+    )
+# This test currently fails because of a race in newlib between
+# __newlib_thread_init and __sinit.
+
+# env.AddNodeToTestSuite(node, TEST_SUITES, 'run_newlib_stdio_test')

[krasin, 2010/09/07 11:25:50]

This test is flaky. Sometimes it fails, sometimes it passes. It means, that you
need to run it several times.

+
 env.ComponentProgram('race_test.nexe',
                      'race_test.c',
                      EXTRA_LIBS=['pthread'],
                      )
 node = env.CommandSelLdrTestNacl(
     'race_test.out',
     command=[env.File('race_test.nexe')],
     size='small',
     )
 env.AddNodeToTestSuite(node, TEST_SUITES + ['tsan_bot_tests'], 'run_race_test')
 
 env.ComponentProgram('main_thread_pthread_exit_test.nexe',
                      'main_thread_pthread_exit_test.c',
                      EXTRA_LIBS=['pthread'],
                      )
 node = env.CommandSelLdrTestNacl(
     'main_thread_pthread_exit_test.out',
     command=[env.File('main_thread_pthread_exit_test.nexe')],
     size='small',
     )
 env.AddNodeToTestSuite(node, TEST_SUITES, 'run_main_thread_pthread_exit_test')