JDK-8212754 : Build failure: undefined JvmtiSampledObjectAllocEventCollector::object_alloc_is_safe_to_sample
  • Type: Bug
  • Component: hotspot
  • Sub-Component: jvmti
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2018-10-22
  • Updated: 2018-11-06
  • Resolved: 2018-10-23
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JDK 11
11.0.2Fixed
Description
Linux x86_64, minimal, slowdebug:

Creating symlink jdk/lib/security/public_suffix_list.dat
/home/buildbot/worker/jdk11u/build/build/linux-x86_64-normal-minimal-slowdebug/hotspot/variant-minimal/libjvm/objs/memAllocator.o: In function `MemAllocator::Allocation::notify_allocation_jvmti_sampler()':
/home/buildbot/worker/jdk11u/build/src/hotspot/share/gc/shared/memAllocator.cpp:210: undefined reference to `JvmtiSampledObjectAllocEventCollector::object_alloc_is_safe_to_sample()'
collect2: error: ld returned 1 exit status
lib/CompileJvm.gmk:149: recipe for target '/home/buildbot/worker/jdk11u/build/build/linux-x86_64-normal-minimal-slowdebug/support/modules_libs/java.base/minimal/libjvm.so' failed
make[3]: *** [/home/buildbot/worker/jdk11u/build/build/linux-x86_64-normal-minimal-slowdebug/support/modules_libs/java.base/minimal/libjvm.so] Error 1

It manifests only in jdk-updates/jdk11u, only in minimal, and only in slowdebug, which is why it was never found?

The usage in jdk11u is:

void MemAllocator::Allocation::notify_allocation_jvmti_sampler() {
  ...
  // Only check if the sampler could actually sample something in this path.
  assert(!JvmtiExport::should_post_sampled_object_alloc() ||
         !JvmtiSampledObjectAllocEventCollector::object_alloc_is_safe_to_sample() ||
         _thread->heap_sampler().sampling_collector_present(),
         "Sampling collector not present.");

Comments
Fix Request This fix is destined for jdk11u to fix the build failure there. We have pushed it to development branch to keep codebases in sync. This allows building non-JVMTI JVM variants in 11u.
23-10-2018