[CMake] Problems with coverage on OS X Server

Sat Mar 24 13:12:01 EDT 2012

Yes, the ENV approach is the right way to do it. (that's how I did it,
too, although in the calling env and not in the script itself...
either is fine)

On Sat, Mar 24, 2012 at 1:10 PM, NoRulez <norulez at me.com> wrote:
> Thanks David,
>
> I think I found a solution, so if someone is also interessted in this, here
> is how i configured clang in a CTestScript.cmake file:
>
> if (APPLE)
>     set (ENV{CC} clang)
>     set (ENV{CXX} clang++)
> endif (APPLE)
>
> .
> .
> .
>
> ctest_start()
> ctest_update()
> ctest_configure()
> .
> .
> .
>
>
> Best Regards
> NoRulez
>
> Am 24. März 2012 um 17:42 schrieb "NoRulez" <norulez at me.com>:
>
>
> I've tried to set the C/C++ compiler as followed:
>     if (APPLE)
>         SET(CMAKE_C_COMPILER "/usr/bin/clang")
>         SET(CMAKE_CXX_COMPILER "/usr/bin/clang++")
>     endif (APPLE)
>
> But the result from the build is:
>  -- Update Continuous --
>  -- Configure Continuous --
>  -- Reading custom configuration Continuous - Arachne --
>  -- Build Continuous --
>  -- Test Continuous --
> No tests were found!!!
>  -- Coverage Continuous --
>  Cannot find any coverage files. Ignoring Coverage request.
>  -- Memcheck Continuous --
> No tests were found!!!
>  -- Submit Continuous --
>
> Best Regards
> NoRulez
>
> Am 24. März 2012 um 17:31 schrieb "NoRulez" <norulez at me.com>:
>
> I've found this
> http://stackoverflow.com/questions/7031126/switching-between-gcc-and-clang-llvm-using-cmake
>
> Is this all which I need to configure or did you do something
> different/special?
> Please could you post your settings to use clang instead of gcc on OS X
>
> Thanks in advance
>
> Best Regards
> NoRulez
>
> Am 24. März 2012 um 15:31 schrieb David Cole <david.cole at kitware.com>:
>
> Well, I've had mixed results trying this myself.
>
> With the trivial SmallAndFast project, I get a good coverage
> measurement on 5 lines of code in 1 source file:
> http://my.cdash.org/viewCoverage.php?buildid=313323&status=3
>
> With CMake itself, I get a bunch of *.gcda files generated in the
> build tree, but the coverage info does not get communicated properly
> via a ctest script sending to CDash. Looks like there's some issue
> with ctest parsing of the gcov output using ctest 2.8.7 and clang on
> the Mac and gcov 4.2.1:
>
> $ gcov --version
> gcov (GCC) 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2336.1.00)
>
> Looks like there's a problem somebody will have to fix before it will
> work. Unfortunately, the gcov parsing code in ctest is a bit of a
> tangle -- last time I was in there, I fixed some stuff up to work in a
> MinGW environment, and it's not pretty. Also unfortunately, I don't
> think I'll have the bandwidth to look at this myself in the near
> future: anybody want to volunteer to take a look and submit a patch to
> get this working...?
>
>
> Thx,
> David
>
>
> On Sat, Mar 24, 2012 at 8:53 AM, David Cole <david.cole at kitware.com> wrote:
>> The answer to that stackoverflow question recommends using
>> clang/clang++ instead. (I have not tried this yet myself, but would
>> not be entirely surprised to find out it's correct. I have observed
>> the zero coverage phenomenon on my own Mac laptop, but have sufficient
>> coverage capabilities elsewhere... so I didn't care enough to follow
>> up on it previously.)
>>
>>
>> HTH,
>> David
>>
>>
>>
>> On Sat, Mar 24, 2012 at 8:51 AM, David Cole <david.cole at kitware.com>
>> wrote:
>>> Perhaps it's because of this problem with the Mac "gcc" which is not
>>> *really* just gcc anymore, and apparently doesn't support gcov
>>> transparently as it should...
>>>
>>>
>>>  http://stackoverflow.com/questions/7988355/getting-0-gcov-coverage-for-a-mac-app
>>>
>>>
>>> On Sat, Mar 24, 2012 at 7:45 AM,  <norulez at me.com> wrote:
>>>> Hello,
>>>>
>>>> I have the following code in the main CTestScript.cmake which I call
>>>> with
>>>> "ctest -S CTestScript.cmake, Continuous":
>>>>
>>>>     SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g -O0 -Wall -W
>>>> -Wunused-variable -Wunused-parameter -Wunused-function -Wunused
>>>> -Wno-system-headers -Wno-deprecated -Woverloaded-virtual -Wwrite-strings
>>>> -fprofile-arcs -ftest-coverage")
>>>>     SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g -O0 -Wall -W -fprofile-arcs
>>>> -ftest-coverage")
>>>>     SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fprofile-arcs
>>>> -ftest-coverage")
>>>>     SET(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS}
>>>> -fprofile-arcs -ftest-coverage")
>>>>     SET(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS}
>>>> -fprofile-arcs -ftest-coverage")
>>>>
>>>>     FILE(WRITE "${CTEST_BINARY_DIRECTORY}/CMakeCache.txt" "
>>>>          CMAKE_CXX_FLAGS:STRING=@CMAKE_CXX_FLAGS@
>>>>          CMAKE_C_FLAGS:STRING=@CMAKE_C_FLAGS@
>>>>          CMAKE_EXE_LINKER_FLAGS:STRING=@CMAKE_EXE_LINKER_FLAGS@
>>>>          CMAKE_MODULE_LINKER_FLAGS:STRING=@CMAKE_MODULE_LINKER_FLAGS@
>>>>          CMAKE_SHARED_LINKER_FLAGS:STRING=@CMAKE_SHARED_LINKER_FLAGS@
>>>>          ")
>>>>
>>>>
>>>>     ## -- Configure
>>>>     message (" -- Configure ${MODEL} - ${CTEST_BUILD_NAME} --")
>>>>     ctest_configure (BUILD "${CTEST_BINARY_DIRECTORY}")
>>>>
>>>>
>>>>
>>>> On Windows XP and on Ubuntu Linux Server 11.10 it works and I get
>>>> coverage
>>>> information.
>>>>
>>>> But on OS X Lion Server I didn't get any coverage informations.
>>>>
>>>> On OS X the command gcov is available.
>>>>
>>>>
>>>> Could someone please help?
>>>>
>>>>
>>>> Thanks in advance
>>>>
>>>>
>>>> Best Regards
>>>>
>>>> NoRulez
>>>>
>>>>
>>>> --
>>>>
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