RFR: JDK-8081475: SystemTap does not work when JDK is compiled with GCC 5

[Coleen Phillimore]

This looks good to me too.  I could sponsor it also for you if you send 
me an hg export of the patch.
Thank you for fixing this,
Coleen

On 5/29/15 6:04 AM, David Holmes wrote:
> Hi Yasumasa,
>
> Fix looks good to me. I think someone had tried to handle this but
> simply got it wrong as the check would pass for 4.4+ and 5+.4+ :(
>
> I noone else jumps in on a local Friday I can sponsor this on my Monday.
>
> Cheers,
> David
>
> On 29/05/2015 7:38 PM, Yasumasa Suenaga wrote:
>> Hi all,
>>
>> I tried to build jdk9/hs-rt on Fedora 22 with GCC 5.1.1 .
>> However, libjvm.so did not have .note.stapsdt section.
>>
>> When I ran make command with LOG=info, I found a message as below:
>> ---------------
>> **NOTICE** Dtrace support disabled: gcc version is too old
>> ---------------
>>
>> hotspot/make/linux/makefiles/dtrace.make checks C compiler version.
>> However, its condition cannot check 5.x or later.
>>
>> So I fix the condition. Could you review it?
>>      http://cr.openjdk.java.net/~ysuenaga/JDK-8081475/webrev.00/
>>
>> This patch works fine on my environment.
>> This issue is occurred on 8u-dev. So I also want to fix it for 8u-dev.
>>
>>
>> I'm jdk9 committer, but I'm not employee at Oracle.
>> So I need a Sponsor.
>>
>>
>> Thanks,
>>
>> Yasumasa
>>