[LLVMdev] JIT on ARM

[Martins Mozeiko]

Ok, thanks for answers. I will try to do things you suggested.

--
Martins Mozeiko


On Oct 14, 2009, at 20:27 , Jim Grosbach wrote:

> Forgot to mention. I don't know how well the canadian cross compile  
> stuff works in 2.5. We made some improvements in that area for 2.6.  
> If you have trouble with it, I'd suggest trying 2.6 (or even better,  
> ToT svn) and seeing if things are improved there.
>
>
> -Jim
> On Sep 25, 2009, at 2:04 AM, Martins Mozeiko wrote:
>
>> Hello.
>>
>> My goal is to use LLVM with JIT compiler for ARM on Android device.
>>
>> Currently I have successfully built and executed LLVM bitcode with
>> interpreter on Android. Speed is not so great, that is why I want to
>> use JIT.
>> I tried building bitcode on windows with llvm-gcc that is provided on
>> llvm home page. Resulting bitcode runs great in interpreter, but it
>> doesn't use JIT. From what I understand from LLVM that it is because
>> of target triple or datalayout. On PC in my case target triple is
>> "i386-mingw32", but LLVM JIT for ARM expects something that starts
>> with "armv" or "thumb". Also datalayout differs a lot. If I  
>> understand
>> correctly that is because bitcode actually contains some of platform
>> specific optimizations (like integer endianness), so I can't simply
>> change target triple string and everything will run.
>>
>> What I am now doing, is - I am trying to build gcc from gcc-4.2-
>> llvm-2.5 sources with following configure line in cygwin shell:
>>
>> ../llvm-gcc4.2-2.4.source/configure --enable-languages=c,c++ -- 
>> enable-
>> checking --enable-llvm=$PWD/../llvm-objects --disable-bootstrap --
>> disable-multilib --disable-nls --target=arm-eabi
>>
>> My undertanding is that this will produce llvm-gcc compiler that will
>> output LLVM bitcode with target triple that starts with "arm", so  
>> LLVM
>> will use JIT on it.
>>
>> Currently I am getting compile problems when running make (see  
>> below).
>> Has anyone done something similar and can explain what I am doing
>> wrong, or how should it be done in some other way to get JIT compiler
>> running on ARM?
>>
>>
>> make[2]: Entering directory `/cygdrive/r/android/llvm/llvm-gcc4.2-
>> objects/gcc'
>> gcc   -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE  -W -Wall -Wwrite-
>> strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-
>> long -Wno-variadic-macros -Wno-overlength-strings -Wold-style-
>> definition -Wmissing-format-attribute -fno-common   -DHAVE_CONFIG_H -
>> DGENERATOR_FILE  -o build/gengtype.exe \
>>            build/gengtype.o build/gengtype-lex.o build/gengtype-
>> yacc.o build/errors.o ../build-i686-pc-cygwin/libiberty/libiberty.a
>> build/gengtype.o: In function `adjust_field_type':
>> /cygdrive/r/android/llvm/llvm-gcc4.2-objects/gcc/../../llvm-
>> gcc4.2-2.4.source/gcc/gengtype.c:763: undefined reference to
>> `_lexer_line'
>> /cygdrive/r/android/llvm/llvm-gcc4.2-objects/gcc/../../llvm-
>> gcc4.2-2.4.source/gcc/gengtype.c:771: undefined reference to
>> `_lexer_line'
>> build/gengtype.o: In function `adjust_field_tree_exp':
>> /cygdrive/r/android/llvm/llvm-gcc4.2-objects/gcc/../../llvm-
>> gcc4.2-2.4.source/gcc/gengtype.c:713: undefined reference to
>> `_lexer_line'
>> build/gengtype.o: In function `adjust_field_rtx_def':
>> /cygdrive/r/android/llvm/llvm-gcc4.2-objects/gcc/../../llvm-
>> gcc4.2-2.4.source/gcc/gengtype.c:488: undefined reference to
>> `_lexer_line'
>> build/gengtype.o: In function `adjust_field_type':
>> /cygdrive/r/android/llvm/llvm-gcc4.2-objects/gcc/../../llvm-
>> gcc4.2-2.4.source/gcc/gengtype.c:785: undefined reference to
>> `_lexer_line'
>> build/gengtype.o:/cygdrive/r/android/llvm/llvm-gcc4.2-objects/
>> gcc/../../llvm-gcc4.2-2.4.source/gcc/gengtype.c:725: more undefined
>> references to `_lexer_line' follow
>> build/gengtype.o: In function `main':
>> /cygdrive/r/android/llvm/llvm-gcc4.2-objects/gcc/../../llvm-
>> gcc4.2-2.4.source/gcc/gengtype.c:3070: undefined reference to
>> `_parse_file'
>> /cygdrive/r/android/llvm/llvm-gcc4.2-objects/gcc/../../llvm-
>> gcc4.2-2.4.source/gcc/gengtype.c:3070: undefined reference to
>> `_parse_file'
>> build/gengtype-yacc.o: In function `yyparse':
>> /cygdrive/r/android/llvm/llvm-gcc4.2-objects/gcc/../../llvm-
>> gcc4.2-2.4.source/gcc/gengtype-yacc.y:73: undefined reference to
>> `_lexer_line'
>> /cygdrive/r/android/llvm/llvm-gcc4.2-objects/gcc/../../llvm-
>> gcc4.2-2.4.source/gcc/gengtype-yacc.y:75: undefined reference to
>> `_lexer_line'
>> /cygdrive/r/android/llvm/llvm-gcc4.2-objects/gcc/../../llvm-
>> gcc4.2-2.4.source/gcc/gengtype-yacc.y:76: undefined reference to
>> `_lexer_toplevel_done'
>> build/gengtype-yacc.o: In function `yyparse':
>> /cygdrive/r/android/llvm/llvm-gcc4.2-objects/gcc/gengtype-yacc.c: 
>> 1873:
>> undefined reference to `_yyerror'
>> /cygdrive/r/android/llvm/llvm-gcc4.2-objects/gcc/gengtype-yacc.c: 
>> 1379:
>> undefined reference to `_yylex'
>> /cygdrive/r/android/llvm/llvm-gcc4.2-objects/gcc/gengtype-yacc.c: 
>> 1877:
>> undefined reference to `_yyerror'
>> /cygdrive/r/android/llvm/llvm-gcc4.2-objects/gcc/gengtype-yacc.c: 
>> 1995:
>> undefined reference to `_yyerror'
>> build/gengtype-yacc.o: In function `yyparse':
>> /cygdrive/r/android/llvm/llvm-gcc4.2-objects/gcc/../../llvm-
>> gcc4.2-2.4.source/gcc/gengtype-yacc.y:122: undefined reference to
>> `_lexer_line'
>> /cygdrive/r/android/llvm/llvm-gcc4.2-objects/gcc/../../llvm-
>> gcc4.2-2.4.source/gcc/gengtype-yacc.y:110: undefined reference to
>> `_lexer_toplevel_done'
>> /cygdrive/r/android/llvm/llvm-gcc4.2-objects/gcc/../../llvm-
>> gcc4.2-2.4.source/gcc/gengtype-yacc.y:102: undefined reference to
>> `_lexer_line'
>> /cygdrive/r/android/llvm/llvm-gcc4.2-objects/gcc/../../llvm-
>> gcc4.2-2.4.source/gcc/gengtype-yacc.y:97: undefined reference to
>> `_lexer_line'
>> /cygdrive/r/android/llvm/llvm-gcc4.2-objects/gcc/../../llvm-
>> gcc4.2-2.4.source/gcc/gengtype-yacc.y:92: undefined reference to
>> `_lexer_line'
>> /cygdrive/r/android/llvm/llvm-gcc4.2-objects/gcc/../../llvm-
>> gcc4.2-2.4.source/gcc/gengtype-yacc.y:239: undefined reference to
>> `_lexer_line'
>> /cygdrive/r/android/llvm/llvm-gcc4.2-objects/gcc/../../llvm-
>> gcc4.2-2.4.source/gcc/gengtype-yacc.y:235: undefined reference to
>> `_lexer_line'
>> build/gengtype-yacc.o:/cygdrive/r/android/llvm/llvm-gcc4.2-objects/
>> gcc/../../llvm-gcc4.2-2.4.source/gcc/gengtype-yacc.y:231: more
>> undefined references to `_lexer_line' follow
>> build/gengtype-yacc.o: In function `yyparse':
>> /cygdrive/r/android/llvm/llvm-gcc4.2-objects/gcc/../../llvm-
>> gcc4.2-2.4.source/gcc/gengtype-yacc.y:84: undefined reference to
>> `_lexer_toplevel_done'
>> /cygdrive/r/android/llvm/llvm-gcc4.2-objects/gcc/../../llvm-
>> gcc4.2-2.4.source/gcc/gengtype-yacc.y:203: undefined reference to
>> `_lexer_line'
>> /cygdrive/r/android/llvm/llvm-gcc4.2-objects/gcc/../../llvm-
>> gcc4.2-2.4.source/gcc/gengtype-yacc.y:203: undefined reference to
>> `_lexer_line'
>> /cygdrive/r/android/llvm/llvm-gcc4.2-objects/gcc/../../llvm-
>> gcc4.2-2.4.source/gcc/gengtype-yacc.y:176: undefined reference to
>> `_lexer_line'
>> /cygdrive/r/android/llvm/llvm-gcc4.2-objects/gcc/../../llvm-
>> gcc4.2-2.4.source/gcc/gengtype-yacc.y:176: undefined reference to
>> `_lexer_line'
>> /cygdrive/r/android/llvm/llvm-gcc4.2-objects/gcc/../../llvm-
>> gcc4.2-2.4.source/gcc/gengtype-yacc.y:165: undefined reference to
>> `_lexer_line'
>> build/gengtype-yacc.o:/cygdrive/r/android/llvm/llvm-gcc4.2-objects/
>> gcc/../../llvm-gcc4.2-2.4.source/gcc/gengtype-yacc.y:165: more
>> undefined references to `_lexer_line' follow
>> collect2: ld returned 1 exit status
>> make[2]: *** [build/gengtype.exe] Error 1
>>
>> --
>> Martins Mozeiko
>>
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>