Is anyone using clang/clang++ to build hotspot?

[Tim Bell]

Hello

I see that hotspot/make/bsd/makefiles/gcc.make contains several sections of:

ifeq ($(USE_CLANG),)
   [...]
else
   [...]
endif


On a 10.8 Mac with the command line tools installed, trying to use clang 
to build hotspot fails early on when building adlc because it uses the 
wrong linker and does not get the C++ runtiime (see below).  This leads 
me to wonder if anyone is using this path through the Makefiles.

Thanks in advance-

Tim Bell



Making adlc
/usr/bin/clang -m64 -mno-omit-leaf-frame-pointer -mstack-alignment=16  
-m64 -mno-omit-leaf-frame-pointer -mstack-alignment=16 -o 
../generated/adfiles/adlc ../generated/adfiles/adlparse.o 
../generated/adfiles/archDesc.o ../generated/adfiles/arena.o 
../generated/adfiles/dfa.o ../generated/adfiles/dict2.o 
../generated/adfiles/filebuff.o ../generated/adfiles/forms.o 
../generated/adfiles/formsopt.o ../generated/adfiles/formssel.o 
../generated/adfiles/main.o ../generated/adfiles/adlc-opcodes.o 
../generated/adfiles/output_c.o ../generated/adfiles/output_h.o
Undefined symbols for architecture x86_64:
   "std::ostream::operator<<(int)", referenced from:
       printline(std::ostream&, char const*, int, char const*, int, int) 
in filebuff.o
[...]
   "operator new(unsigned long)", referenced from:
       ADLParser::instr_parse() in adlparse.o
       ADLParser::oper_parse() in adlparse.o
       ADLParser::opclass_parse() in adlparse.o
       ADLParser::ins_attr_parse() in adlparse.o
       ADLParser::op_attr_parse() in adlparse.o
       ADLParser::source_parse() in adlparse.o
       ADLParser::source_hpp_parse() in adlparse.o
       ...
      (maybe you meant: __ZnwmiPKci)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see 
invocation)
make[8]: *** [../generated/adfiles/adlc] Error 1
make[7]: *** [ad_stuff] Error 2
make[6]: *** [fastdebug] Error 2
make[5]: *** [generic_build2] Error 2
make[4]: *** [fastdebug] Error 2
make[3]: *** [all_fastdebug_universal] Error 2
make[2]: *** [universal_fastdebug] Error 2
make[1]: *** 
[/opt/jprt/tbell/8019470/build/macosx-x86_64-normal-server-fastdebug/hotspot/_hotspot.timestamp] 
Error 2
make: *** [hotspot-only] Error 2