JDK9: RFR: 8019470: Changes needed to compile JDK8 on MacOS with clang compiler

Henry Jen henry.jen at oracle.com
Thu Mar 6 17:13:59 UTC 2014

I cannot find doc regarding to -fPIC in clang, thus I leave it empty 
after googled a little bit.

There is a code generation option for lli, -relocation-model=pic, which 
seems to be default for clang[1].

[1] http://clang.llvm.org/doxygen/CodeGenOptions_8h_source.html


On 03/06/2014 06:46 AM, Magnus Ihse Bursie wrote:
> Looks good to me. Just one question, since clang otherwise duplicates the gcc flags: is it correct to drop -fPIC in clang?
> /Magnus
>> On 6 mar 2014, at 09:36, Erik Joelsson <erik.joelsson at oracle.com> wrote:
>> Hello,
>> I was waiting for Magnus to look at this since he is more involved in this code at the moment. I think it looks good ok, but would prefer if he got the chance to look at it too.
>> /Erik
>>> On 2014-03-06 01:11, Henry Jen wrote:
>>> Ping! Is three any concern on this patch? I got JPRT reports no problem and other reports success.
>>> I hope we can get this in as early as we can because build is evloving quickly, and I think it only can get better after pushed for more tests.
>>> Cheers,
>>> Henry
>>>> On 02/26/2014 12:23 AM, Henry Jen wrote:
>>>> Hi,
>>>> Please review a webrev to enable XCode5 build on Mac OS X, this webrev
>>>> add basic clang flags and detect Xcode version to set default toolchain
>>>> to clang for Xcode5 and after, otherwise set to gcc for Mac OS X.
>>>> http://cr.openjdk.java.net/~henryjen/jdk9/8019470/1/webrev/
>>>> This patch build on Maverick with Xcode 5, but is not yet sufficient to
>>>> enable clang build on my Arch Linux, where I installed clang 3.4. There
>>>> are some undeclare identifier|function|type warnings/errors, the cause
>>>> of which is still under investigation, my guess lies in precompile
>>>> header, but I think that can be addressed later.
>>>> Cheers,
>>>> Henry

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