[xray] Fix CMake for X-RAY tests

[george.karpenkov]

Summary

Correctly depend on llvm-xray, make sure unit tests are run.

[dberris]

It looks like you don't have llvm-commits in the subscribers.

[george.karpenkov]

Adding LLVM commits as requested.
@dberris better now?

[george.karpenkov]

Sent email manually, as the email does no get sent if the CC list is updated =(

[dberris]

Thanks -- I'm not entirely sure how this changes things, but if it works then I'm happy. :)

[george.karpenkov]

@dberris to be frank neither do I.
There seems to be a separate llvm-xray target, which is not invoked when you depend on xray.
As for target properties, somehow unit tests does not get picked up without it.
(yet somehow tsan's ones happily run without).

compiler-rt/trunk/lib/xray/tests/CMakeLists.txt

 macro(add_xray_unittest testname)
   cmake_parse_arguments(TEST "" "" "SOURCES;HEADERS" ${ARGN})
   if(UNIX AND NOT APPLE)
     foreach(arch ${XRAY_TEST_ARCH})
       set(TEST_OBJECTS)
       generate_compiler_rt_tests(TEST_OBJECTS
         XRayUnitTests "${testname}-${arch}-Test" "${arch}"
         SOURCES ${TEST_SOURCES} ${COMPILER_RT_GTEST_SOURCE}
-        DEPS gtest xray
+        DEPS gtest xray llvm-xray
         CFLAGS ${XRAY_UNITTEST_CFLAGS}
         LINK_FLAGS -fxray-instrument
           ${TARGET_LINK_FLAGS}
           -lstdc++ -lm ${CMAKE_THREAD_LIBS_INIT}
           -lpthread
           -ldl -lrt)
+      set_target_properties(XRayUnitTests PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
     endforeach()
   endif()
 endmacro()
 
 if(COMPILER_RT_CAN_EXECUTE_TESTS)
   add_subdirectory(unit)
 endif()