$ make hotspot CONF=server-re
Building target 'hotspot' in configuration 'linux-x86_64-server-release'
Updating support/modules_libs/java.base/server/libjvm.so due to 1 file(s)
/home/aoqi/work/jdk/src/hotspot/os/linux/os_linux.cpp: In static member function 'static void* os::dll_load(const char*, char*, int)':
/home/aoqi/work/jdk/src/hotspot/os/linux/os_linux.cpp:1854:6: error: 'EM_486' was not declared in this scope
     {EM_486, EM_386, ELFCLASS32, ELFDATA2LSB, (char*)"IA 32"},
      ^~~~~~
/home/aoqi/work/jdk/src/hotspot/os/linux/os_linux.cpp:1854:6: note: suggested alternative: 'EM_386'
     {EM_486, EM_386, ELFCLASS32, ELFDATA2LSB, (char*)"IA 32"},
      ^~~~~~
      EM_386
gmake[3]: *** [lib/CompileJvm.gmk:182: /home/aoqi/work/jdk/build/linux-x86_64-server-release/hotspot/variant-server/libjvm/objs/os_linux.o] Error 1
gmake[2]: *** [make/Main.gmk:252: hotspot-server-libs] Error 2

ERROR: Build failed for target 'hotspot' in configuration 'linux-x86_64-server-release' (exit code 2)

=== Output from failing command(s) repeated here ===
* For target hotspot_variant-server_libjvm_objs_os_linux.o:
/home/aoqi/work/jdk/src/hotspot/os/linux/os_linux.cpp: In static member function 'static void* os::dll_load(const char*, char*, int)':
/home/aoqi/work/jdk/src/hotspot/os/linux/os_linux.cpp:1854:6: error: 'EM_486' was not declared in this scope
     {EM_486, EM_386, ELFCLASS32, ELFDATA2LSB, (char*)"IA 32"},
      ^~~~~~
/home/aoqi/work/jdk/src/hotspot/os/linux/os_linux.cpp:1854:6: note: suggested alternative: 'EM_386'
     {EM_486, EM_386, ELFCLASS32, ELFDATA2LSB, (char*)"IA 32"},
      ^~~~~~
      EM_386

* All command lines available in /home/aoqi/work/jdk/build/linux-x86_64-server-release/make-support/failure-logs.
=== End of repeated output ===

No indication of failed target found.
Hint: Try searching the build log for '] Error'.
Hint: See doc/building.html#troubleshooting for assistance.