`make CONF=debug test TEST=serviceability/sa/TestJmapCore.java` fails consistently using clang toolchain on linux x64.

gcc toolchain works fine.

It's possible that this is a clang bug.

ENV: clang-14

The following error message is seen in the .jtr file:

Error attaching to core file: Can't attach to the core file

After exporting LIBSAPROC_DEBUG=1, the following additional information is present:

libsaproc DEBUG: address conflict @ 0x7fd5237f9fa0 (existing map size = 21311488, size = 21305808, flags = 5)
libsaproc DEBUG: can't read shared object's segments

I think this means we have two different segments mapping to the same address, and they have different sizes, which they shouldn't. The address in question is in libjvm.so:

libsaproc DEBUG: reading library /<snip>/build/linux-x64-debug/images/jdk/lib/server/libjvm.so @ 0x7fd523000000 [ 0x7fd523000000 ]
libsaproc DEBUG: overwrote with new address mapping (memsz 8359936 -> 8359936)