jtreg - building java and cpp test

[Jonathan Gibbons]

Pete,

I see a few uses in the hotspot/ and jdk/ repos.

$ grep --recursive nativepath make */make test */test
hotspot/test/Makefile:# jtreg -nativepath <dir>
hotspot/test/Makefile:  JTREG_NATIVE_PATH = -nativepath:$(shell 
$(GETMIXEDPATH) "$(TESTNATIVE_DIR)/hotspot/jtreg/native")
jdk/test/native_sanity/simplenativelauncher/ProgramTest.java: String lib 
= System.getProperty("test.nativepath");
jdk/test/Makefile:# jtreg -nativepath <dir>
jdk/test/Makefile:  JTREG_NATIVE_PATH = -nativepath:$(shell 
$(GETMIXEDPATH) "$(TESTNATIVE_DIR)/jdk/jtreg/native")

-- Jon



On 11/19/2015 01:08 PM, Pete Brunet wrote:
>
> On 11/19/15 3:07 PM, Pete Brunet wrote:
>> Thanks Jonathan, Is -native in use?  I see some infrastructure for it
>> but can't find (yet) that it's actually in use.  -Pete
> s/native/nativepath/
>> On 11/19/15 12:44 PM, Jonathan Gibbons wrote:
>>> On 11/19/2015 07:46 AM, Pete Brunet wrote:
>>>> Hi, I need to build a regression test that has both Java and C++ code.
>>>> I see some similar cases in the test tree and they include the exe of
>>>> the cpp file.  I also see a Makefile.  If I run the test without the exe
>>>> it is not built so what is the Makefile for?  Documentation?
>>>>
>>>> The Makefile I used as a prototype has
>>>> cl -o name.exe name.cpp name.lib name.lib
>>>> but when I ran make at the command line cl was not found but at least at
>>>> this point I don't see the need to look into the cl failure if the
>>>> Makefile is just for documentation.
>>>>
>>>> Pete
>>> jtreg has no direct, complete solution for mixed code like this, and
>>> is unlikely to support
>>> it any time soon.
>>>
>>> You can use Makefiles from a shell script, but that is unlikely to be
>>> successful in a
>>> broad multi-platform world, like OpenJDK.  Not only is it problematic
>>> to know what
>>> compiler to use and where to find it, but at least in our internal
>>> test infrastructure,
>>> the test machines may not even have the native code compilers installed.
>>> (i.e. it is common practice to build and test on different host systems.)
>>>
>>> The compromise solution we adopted in conjunction with the Hotspot SQE
>>> team
>>> is to use the OpenJDK build process to compile the C/C++ code needed
>>> for the tests.
>>> The build has the info needed on how to do platform-specific
>>> compilation of native
>>> code.   The build can then generate a bundle that can be passed to
>>> jtreg with the
>>> -nativepath option.
>>>
>>> I cannot speak to the existence of Makefiles appearing in the
>>> regression test suite.
>>> Sometimes they are used manually to create native files that are
>>> checked in to the
>>> repo (uugh) and sometimes the tests are restricted to run on a limited
>>> set of platforms
>>> (e.g. Windows only, or Unix only.)
>>>
>>> -- Jon