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  1. JDK
  2. JDK-8345569

[ubsan] adjustments to filemap.cpp and virtualspace.cpp for macOS aarch64

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    • Icon: Bug Bug
    • Resolution: Fixed
    • Icon: P3 P3
    • 25
    • 24
    • hotspot
    • b03
    • aarch64
    • os_x

      Seems there is an undefined addition to a nullptr in filemap.cpp :

      jdk/src/hotspot/share/cds/filemap.cpp:2215:47: runtime error: applying non-zero offset 34358689792 to null pointer
          #0 0x107b70c78 in FileMapInfo::heap_region_requested_address() filemap.cpp:2215
          #1 0x107b71960 in FileMapInfo::map_heap_region_impl() filemap.cpp:2260
          #2 0x107b70e04 in FileMapInfo::map_or_load_heap_region() filemap.cpp:2081
          #3 0x1082976ec in MetaspaceShared::map_archives(FileMapInfo*, FileMapInfo*, bool) metaspaceShared.cpp:1344
          #4 0x10829699c in MetaspaceShared::initialize_runtime_shared_and_meta_spaces() metaspaceShared.cpp:1098
          #5 0x108289530 in Metaspace::global_initialize() metaspace.cpp:736
          #6 0x108819da8 in universe_init() universe.cpp:887
          #7 0x107d8b4ec in init_globals() init.cpp:133
          #8 0x1087e43d8 in Threads::create_vm(JavaVMInitArgs*, bool*) threads.cpp:574
          #9 0x107eca96c in JNI_CreateJavaVM jni.cpp:3681
          #10 0x102e6e770 in JavaMain java.c:494
          #11 0x102e7579c in ThreadJavaMain java_md_macosx.m:679
          #12 0x19d38ef90 in _pthread_start+0x84 (libsystem_pthread.dylib:arm64e+0x6f90)
          #13 0x19d389d30 in thread_start+0x4 (libsystem_pthread.dylib:arm64e+0x1d30)


      coding in filemap.cpp is (and CompressedOops::base() seems to return nullptr on this macOS aarch64 machine)

      return /*runtime*/ CompressedOops::base() + r->mapping_offset();

      This was seen in the OpenJDK build on macOS aarch64 when building with ubsan enabled.

            mbaesken Matthias Baesken
            mbaesken Matthias Baesken
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              Created:
              Updated:
              Resolved: