Enable sanitizer_common tests on NetBSD

[krytarowski]

Summary

NetBSD can handle asan, ubsan, msan, tsan tests
on 64-bit and when applicable 32-bit X86 OS.

Sponsored by <The NetBSD Foundation>

[krytarowski]

Include here test/sanitizer_common/TestCases/NetBSD/lit.local.cfg

[krytarowski]

Merging this is required to unbreak the Android buildbot. I'm going to land it now.

[krytarowski]

http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-android/builds/6882/steps/run%20lit%20tests%20%5Bi686%2Ffugu-userdebug%2FN2G48C%5D/logs/stdio

FAIL: SanitizerCommon-asan-i386-Android :: NetBSD/gid_from_group.cc (500 of 775)
******************** TEST 'SanitizerCommon-asan-i386-Android :: NetBSD/gid_from_group.cc' FAILED ********************
Script:
--
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm/projects/compiler-rt/test/sanitizer_common/android_commands/android_compile.py  /var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm_build64/bin/clang  --driver-mode=g++ -gline-tables-only -fsanitize=address  --target=i686-linux-android --sysroot=/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/android_ndk/standalone-i686/sysroot -B/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/android_ndk/standalone-i686 -pie -fuse-ld=gold -Wl,--enable-new-dtags  -O0 -g /var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm/projects/compiler-rt/test/sanitizer_common/TestCases/NetBSD/gid_from_group.cc -o /var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/compiler_rt_build_android_i686/test/sanitizer_common/asan-i386-Android/NetBSD/Output/gid_from_group.cc.tmp &&  /var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/compiler_rt_build_android_i686/test/sanitizer_common/asan-i386-Android/NetBSD/Output/gid_from_group.cc.tmp
--
Exit Code: 1

Command Output (stderr):
--
/var/lib/buildbot/sanitizer-buildbot6/sanitizer-x86_64-linux-android/build/llvm/projects/compiler-rt/test/sanitizer_common/TestCases/NetBSD/gid_from_group.cc:9:7: error: use of undeclared identifier 'gid_from_group'
  if (gid_from_group("nobody", &nobody) == -1)
      ^
1 error generated.

--

compiler-rt/trunk/test/sanitizer_common/CMakeLists.txt

 set(SANITIZER_COMMON_LIT_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
 
 set(SANITIZER_COMMON_TEST_DEPS ${SANITIZER_COMMON_LIT_TEST_DEPS})
 set(SANITIZER_COMMON_TESTSUITES)
 
 set(SUPPORTED_TOOLS)
 if(CMAKE_SYSTEM_NAME MATCHES "Darwin|Linux|FreeBSD|NetBSD|SunOS")
   list(APPEND SUPPORTED_TOOLS asan)
 endif()
-if(CMAKE_SYSTEM_NAME MATCHES "Linux" AND NOT ANDROID)
+if(CMAKE_SYSTEM_NAME MATCHES "NetBSD" OR (CMAKE_SYSTEM_NAME MATCHES "Linux" AND NOT ANDROID))
   list(APPEND SUPPORTED_TOOLS tsan)
   list(APPEND SUPPORTED_TOOLS msan)
-  list(APPEND SUPPORTED_TOOLS lsan)
   list(APPEND SUPPORTED_TOOLS ubsan)
 endif()
+if(CMAKE_SYSTEM_NAME MATCHES "Linux" AND NOT ANDROID)
+  list(APPEND SUPPORTED_TOOLS lsan)
+endif()
 
 # Create a separate config for each tool we support.
 foreach(tool ${SUPPORTED_TOOLS})
   string(TOUPPER ${tool} tool_toupper)
   if(${tool_toupper}_SUPPORTED_ARCH AND NOT COMPILER_RT_STANDALONE_BUILD)
     list(APPEND SANITIZER_COMMON_TEST_DEPS ${tool})
   endif()
   set(TEST_ARCH ${${tool_toupper}_SUPPORTED_ARCH})

compiler-rt/trunk/test/sanitizer_common/TestCases/NetBSD/lit.local.cfg

+def getRoot(config):
+  if not config.parent:
+    return config
+  return getRoot(config.parent)
+
+root = getRoot(config)
+
+if root.host_os not in ['NetBSD']:
+  config.unsupported = True

compiler-rt/trunk/test/sanitizer_common/lit.common.cfg

 config.substitutions.append( ("%clangxx ", build_invocation(clang_cxxflags)) )
 config.substitutions.append( ("%tool_name", config.tool_name) )
 config.substitutions.append( ("%tool_options", tool_options) )
 config.substitutions.append( ('%env_tool_opts=',
                               'env ' + tool_options + '=' + default_tool_options_str))
 
 config.suffixes = ['.c', '.cc', '.cpp']
 
-if config.host_os not in ['Linux', 'Darwin']:
+if config.host_os not in ['Linux', 'Darwin', 'NetBSD']:
   config.unsupported = True