JDK 17: First Release Candidate
fweimer at redhat.com
Sat Aug 14 09:23:27 UTC 2021
* David Holmes:
> Hi Matthias,
> On 14/08/2021 2:00 am, Matthias Klose wrote:
>> On 8/6/21 7:09 PM, mark.reinhold at oracle.com wrote:
>>> There are no unresolved P1 bugs in build 35, so that is our
>>> first JDK 17 Release Candidate.
>>> Binaries available here, as usual: https://jdk.java.net/17
>> this fails to build with glibc 2.34, i.e. on recent Fedora and
>> development versions:
>> function 'set_signal_handler':
>> error: storage size of 'altstack' isn't constant
>> 72 | static char altstack[SIGSTKSZ];
>> | ^~~~~~~~
>> gmake: *** [test/JtregNativeHotspot.gmk:1525:
>> Error 1
> That seems like a glibc bug to me as SIGSTKSZ is supposed to be a constant.
It is still a constant in glibc's POSIX mode, but OpenJDK does not use
POSIX mode (with good reason). 8192 bytes is really tight on AVX-512
capability CPUs, so the code could still be buggy if it compiled.
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