[LLVMdev] building for sparc-sun-solaris2.10

[Luke Dalessandro]

Luke Dalessandro wrote:
> OK. So I've discovered --with-sysroot which seems to be grabbing and 
> patching the include files correctly. Now it's dieing with
> 
>    ./options.h:462: error: 'HOST_BITS_PER_INT' undeclared here (not in a 
> function)
>    ./options.h:462: error: bit-field 'padding' width not an integer constant
> 
> which appears to be llvm-gcc specific because it doesn't happen in 
> vanilla 4.2.4.
> 
> I'm definitely moving forward though. Thanks for the advice.

Anton helped me out on irc. For anyone that needs it, the solution was 
to add #define IN_LIBGCC2 in the beginning of sol2-gmon.c file before 
its includes.

Now I get to an ICE

/Users/luked/install/obj/sparc/llvm-gcc/./gcc/xgcc 
-B/Users/luked/install/obj/sparc/llvm-gcc/./gcc/ 
-B/Users/luked/opt/sparc/sparc-sun-solaris2.10/bin/ 
-B/Users/luked/opt/sparc/sparc-sun-solaris2.10/lib/ -isystem 
/Users/luked/opt/sparc/sparc-sun-solaris2.10/include -isystem 
/Users/luked/opt/sparc/sparc-sun-solaris2.10/sys-include  -O2  -O2 -g 
-O2  -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE   -W -Wall -Wwrite-strings 
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition 
-isystem ./include  -fPIC -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 
-D__GCC_FLOAT_NOT_NEEDED  -I. -I. -I../../../../src/llvm-gcc-svn/gcc 
-I../../../../src/llvm-gcc-svn/gcc/. 
-I../../../../src/llvm-gcc-svn/gcc/../include 
-I../../../../src/llvm-gcc-svn/gcc/../libcpp/include 
-I/opt/local/include -I/opt/local/include 
-I../../../../src/llvm-gcc-svn/gcc/../libdecnumber -I../libdecnumber 
-I/Users/luked/install/obj/llvm-svn/include 
-I/Users/luked/install/src/llvm-svn/include -DL_powitf2 
-fvisibility=hidden -DHIDE_EXPORTS -c 
../../../../src/llvm-gcc-svn/gcc/libgcc2.c -o libgcc/./_powitf2.o
../../../../src/llvm-gcc-svn/gcc/libgcc2.c: In function '__powitf2':
../../../../src/llvm-gcc-svn/gcc/libgcc2.c:1765: internal compiler 
error: in HandleArgument, at llvm-abi.h:520

It seems like the sparc-sun-solaris2.10 triple isn't currently supported 
correctly. I'm considering trying to fix it myself, but my research is 
in scalable shared memory programming, not the intricacies of gcc and 
the sparc-solaris ABI.

Can anyone give me a feeling on how much time getting llvm-gcc to 
produce sparc-solaris IR is likely to take someone with 0 familiarity? 
Or pointers to documentation. Is reading the llvm-gcc source really the 
best way to learn about it?

Thanks,
Luke



> 
> Luke
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