latest commit of panama-foreign branch jextract has strange error...

[Maurizio Cimadamore]

On 15/11/2019 12:22, Mark Hammons wrote:
> Hi Jorn,
>
> This is what got the build working for me. While the README.foreign does
> mention the use of pre-packaged clang, it makes it seem much less necessary
> than it actually is for jextract's build. The configuration script accurately
> picked up on clang7 (or clang 9, whichever I had installed at the time) in my
> OS, and used it to generate jextract, but it seems the build process for
> jextract isn't well suited to anything that has a clang layout different from
> the downloadable clang (or maybe ubuntu).
>
> Anyway, with that in place, my build is working (at least seemingly, need to
> run jtreg stuff on it), and my panama-foreign jdk is built.
>
> One thing I'd like to mention. In an earlier discussion, Maurizio mentioned
> foreign-abi being a solution for something I was having trouble with.
> Naturally, I tried building it first, but it doesn't seem to have jextract or
> much of anything I rely on. Is there a version of the foreign branch that has
> the SystemABI api?

foreign-abi is the branch that has SystemABI. But there's no jextract 
there (for a reason, given that the foreign-abi branch is lower level 
and doesn't have the high level C API).

Maurizio

>
> ~Mark
>
> On Friday, November 15, 2019 10:36:02 AM CET Jorn Vernee wrote:
>> Hi Mark,
>>
>> Due to a behavior breaking change in LLVM 8, jextract has required using
>> LLVM 7, until a fix was released in LLVM 9 (which we've upstreamed).
>>
>> I've been busy working on the foreign-abi branch, but you've reminded me
>> about the plan to update to LLVM 9 once it came out. I've filed:
>> https://bugs.openjdk.java.net/browse/JDK-8234237
>>
>> If you want to build the foreign branch, I'd highly recommend trying to
>> use one of the standard distributions of LLLVM 7:
>> http://releases.llvm.org/download.html if you can, since our build
>> scripts look for a particular directory structure. Then it should only
>> be necessary to point `--with-libclang=</path/to/llvm/root>` to the root
>> directory. Using the standard distribution also makes sure you have all
>> the required dependencies  (libclang binary/libclang API headers/clang
>> headers (aux)).
>>
>> HTH,
>> Jorn
>>
>> On 15/11/2019 03:42, mark.hammons at inaf.cnrs-gif.fr wrote:
>>> No, opensuse tumbleweed. I've tried a number of things, like "bash
>>> configure --disable-warnings-as-errors
>>> --with-jtreg=/home/mhammons/bin/jtreg --with-
>>> libclang-include=/usr/include --with-libclang-include-aux=/usr/lib64
>>> --enable- headless-only" but jextract still fails to find stddef.h. Do I
>>> need to use a prebuilt clang that isn't from my linux distro?
>>>
>>>
>>> On Friday, November 15, 2019 3:18:35 AM CET
>>>
>>> sundararajan.athijegannathan at oracle.com  wrote:
>>>> This does not appear to be due to last commit. Last commit was a hotspot
>>>> fix to sync.  with latest hotspot code. That should not affect header
>>>> file search. Are you on Mac?
>>>>
>>>> -Sundar
>>>>
>>>> On 15/11/19 5:51 am, Mark Hammons wrote:
>>>>> I do not. This started happening with this build I'm trying to do of the
>>>>> panama openjdk. I'm starting to think the stddef.h missing thing is on
>>>>> my
>>>>> side, cause some of the jtreg tests failed with that too. Trying to
>>>>> figure
>>>>> out why this is a problem for the build. Maybe it's because I'm using
>>>>> clang 9.
>>>>>
>>>>> ~Mark
>>>>>
>>>>> On Friday, November 15, 2019 12:41:39 AM CET Maurizio Cimadamore wrote:
>>>>>> Btw - are you saying you don't get this with the latest EA?
>>>>>>
>>>>>> Maurizio
>>>>>>
>>>>>> On 14/11/2019 23:38, Maurizio Cimadamore wrote:
>>>>>>> Typically, the stddef.h not found problem comes from the fact that
>>>>>>> jextract cannot find the clang support header files... is that a plain
>>>>>>> call from command line? Which OS?
>>>>>>>
>>>>>>> Thanks
>>>>>>> Maurizio
>>>>>>>
>>>>>>> On 14/11/2019 22:26, Mark Hammons wrote:
>>>>>>>> Hi all,
>>>>>>>>
>>>>>>>> When I use jextract from the latest panama-foreign commit
>>>>>>>> (58596:ff086ae3cfac)
>>>>>>>> I get the following error: java.lang.RuntimeException:
>>>>>>>> /usr/include/zconf.h:
>>>>>>>> 247:14: fatal error: 'stddef.h' file not found
>>>>>>>>
>>>>>>>> it comes from this call of jextract: jextract /usr/include/zlib.h -L
>>>>>>>> /usr/
>>>>>>>> lib64 --record-library-path -l z -t zlib. I'm guessing this is a bug?
>>>>>>>>
>>>>>>>> ~Mark