How to build libgraal for latest JDK (in theory)

[Vladimir Kozlov]

Hi Roland,

Glad to hear that you able to build libgraal with JDK 15u.

To fix issue you see you need next change

substratevm/mx.substratevm/mx_substratevm.py
@@ -1350,7 +1350,7 @@ class SubstrateCompilerFlagsBuilder(mx.ArchivableProject):
          return file_path

      def config_file_versions(self):
-        versions = [8, 11, 13, 14, 15]
+        versions = [8, 11, 13, 14, 15, 16]
          if svm_java8():
              return versions[:1]
          return versions
@@ -1433,6 +1433,7 @@ class SubstrateCompilerFlagsBuilder(mx.ArchivableProject):
              graal_compiler_flags_map[13] = graal_compiler_flags_map[11]
              graal_compiler_flags_map[14] = graal_compiler_flags_map[11]
              graal_compiler_flags_map[15] = graal_compiler_flags_map[11]
+            graal_compiler_flags_map[16] = graal_compiler_flags_map[11]

          graal_compiler_flags_base = [
              '-XX:+UseParallelGC',  # native image generation is a throughput-oriented task

But you will hit another issue after that:

Building libjvmcicompiler.so.image... [dependency GRAALVM_39063E534F_JAVA16_STAGE1 updated]
[libjvmcicompiler:16649]    classlist:   1,946.65 ms,  0.96 GB
[libjvmcicompiler:16649]        setup:     519.64 ms,  0.96 GB
Error: could not find target method: private static native com.oracle.svm.core.jdk.Target_java_lang_invoke_MemberName 
com.oracle.svm.core.jdk.Target_java_lang_invoke_MethodHandleNatives.resolve(com.oracle.svm.core.jdk.Target_java_lang_invoke_MemberName,java.lang.Class,boolean) 
throws java.lang.LinkageError,java.lang.ClassNotFoundException
com.oracle.svm.core.util.UserError$UserException: could not find target method: private static native 
com.oracle.svm.core.jdk.Target_java_lang_invoke_MemberName 
com.oracle.svm.core.jdk.Target_java_lang_invoke_MethodHandleNatives.resolve(com.oracle.svm.core.jdk.Target_java_lang_invoke_MemberName,java.lang.Class,boolean) 
throws java.lang.LinkageError,java.lang.ClassNotFoundException
	at com.oracle.svm.core.util.UserError.abort(UserError.java:68)
	at 
com.oracle.svm.hosted.substitute.AnnotationSubstitutionProcessor.findOriginalMethod(AnnotationSubstitutionProcessor.java:695)
	at 
com.oracle.svm.hosted.substitute.AnnotationSubstitutionProcessor.handleMethodInAliasClass(AnnotationSubstitutionProcessor.java:349)


As I said before you most likely fail to build libgraal with latest JDK until GraalVM (SubstrateVM) supports it.

Regards,
Vladimir K

On 9/4/20 1:52 AM, Roland Westrelin wrote:
> 
> Hi Vladimir,
> 
> Thanks for writing the steps down. I gave it a try but for step 6:
> 
>> 6. Build libgraal
>>
>> cd /<my_dir>/graal/vm
>> mx --env libgraal build
> 
> I get:
> 
> Building libjvmcicompiler.so.image... [dependency GRAAL_HOTSPOT_LIBRARY updated]
> Error: Requirements for building native images are not fulfilled [cause: Image building not supported for Java version 16-internal in /mnt/ssd/rwestrel/metropolis/graal/sdk/mxbuild/linux-amd64/GRAALVM_39063E534F_JAVA16_STAGE1/graalvm-39063e534f-java16-20.3.0-dev with VM configuration "OpenJDK 64-Bit Server VM"]
> 
> Building libjvmcicompiler.so.image failed
> 1 build tasks failed
> 
> You said:
> 
>> Unfortunately step 6 fail currently (August 25, 2020) because JDK misses JVMCI part of 8209961 fix [2] which is used by
>> latest Graal which already have that fix.
> 
> but AFAICT 8209961 is fixed now.
> 
> Any idea what could go wrong?
> 
> Roland.
>