[Arm-dev] java-1.8.0 not building on armv5

[Jacco Ligthart]

On 08/29/17 10:19, Fabian Arrotin wrote:
> On 27/08/17 20:13, Jacco Ligthart wrote:
>> Hi Fabian,
>>
>> I fail to build java-1.8.0-openjdk on armv5.
>>
>> I get errors regarding gdb:
>>
>> + gdb -q
>> /builddir/build/BUILD/java-1.8.0-openjdk-1.8.0.141-2.b16.el7.arm/openjdk/build/jdk8.build/images/j2sdk-image/bin/java
>> + tee gdb.out
>> Reading symbols from
>> /builddir/build/BUILD/java-1.8.0-openjdk-1.8.0.141-2.b16.el7.arm/openjdk/build/jdk8.build/images/j2sdk-image/bin/java...done.
>> (gdb) Signal        Stop        Print   Pass to program Description
>> SIGSEGV       No        No      Yes             Segmentation fault
>> (gdb) Signal        Stop        Print   Pass to program Description
>> SIGILL        No        No      Yes             Illegal instruction
>> (gdb) (gdb) Breakpoint 1 (javaCalls.cpp:1) pending.
>> (gdb) >>>(gdb) Starting program:
>> /builddir/build/BUILD/java-1.8.0-openjdk-1.8.0.141-2.b16.el7.arm/openjdk/build/jdk8.build/images/j2sdk-image/bin/java
>> -version
>> No source file named javaCalls.cpp.
>> [Thread debugging using libthread_db enabled]
>> Using host libthread_db library "/lib/libthread_db.so.1".
>> warning: Probes-based dynamic linker interface failed.
>> Reverting to original interface.
>> Cannot access memory at address 0xc2400000
>> Missing separate debuginfos, use: debuginfo-install
>> glibc-2.17-157.el7.4.redsleeve.armv5tel libgcc-4.8.5-11.el7.armv5tel
>> zlib-1.2.7-17.el7.armv5tel
>> (gdb) quit
>> A debugging session is active.
>>
>>
>> This is all related to a new section about gdb in the SPEC-file:
>>
>> # Make sure gdb can do a backtrace based on line numbers on libjvm.so
>> gdb -q "$JAVA_HOME/bin/java" <<EOF | tee gdb.out
>> handle SIGSEGV pass nostop noprint
>> handle SIGILL pass nostop noprint
>> set breakpoint pending on
>> break javaCalls.cpp:1
>> commands 1
>> backtrace
>> quit
>> end
>> run -version
>> EOF
>> grep 'JavaCallWrapper::JavaCallWrapper' gdb.out
>>
>>
>> Now my question, does this build on armv7 ?
>>
>> Jacco
> Hi Jacco,
>
> I'm just back from "offline/holidays" mode but I saw the issue before
> leaving, and have still to find the fix.
>
> What is interesting is that it seems a different error message on armv7
> (from
> https://armv7.dev.centos.org/rpmbuild/c71708-pass-1/19329-java-1.8.0-openjdk-1.8.0.131-11.b12.el7/armv7hl/build.log)
> :
>
> Caused by: java.io.FileNotFoundException:
> /usr/lib/jvm/java-1.7.0-openjdk-1.7.0.141-2.6.10.5.el7.arm/jre/lib/resources.jar
> (Permission denied)
>
> Don't know why it grabbed 1.7 in the first place in the mock chroot
> (DEBUG util.py:417:   -->
> 1:java-1.7.0-openjdk-devel-1.7.0.141-2.6.10.5.el7.armv7hl) , so maybe
> some different mock config file is needed to enforce only fetching 1.8 ?
> I'll give it a try later
Strange that you have a different error.

I do know why it grabs 1.7. The Spec file states:
# Use OpenJDK 7 where available (on RHEL) to avoid
# having to use the rhel-7.x-java-unsafe-candidate hack
%if 0%{?rhel}
BuildRequires: java-1.7.0-openjdk-devel
%else
BuildRequires: java-1.8.0-openjdk-devel
%endif

Apparently we qualify as "rhel" here.

Jacco