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

[Luke Dalessandro]

Mike Stump wrote:
> On Oct 31, 2008, at 1:10 PM, Luke Dalessandro wrote:
>> I've started trying by trying to get sparc-sun-solaris2.10 (niagara)
>> working. It appears that neither llvm nor llvm-gcc will build natively
>> on the system, so I think that I need to build an llvm-gcc cross  
>> compiler.
> 
> Get a gcc binary from someplace, use that to then build it, then  
> install and use that, presto, done, and much easier than anything else.

Hmm... I'm not exactly following this. I have gcc installed on all of 
the systems that I work with.

>> The documentation for building gcc (in general) as a cross compiler
>> seems to be somewhat dated...
> 
> The scheme has not changed (much) in the past 15 years.

Good.

>> 4) Build a glibc.
> 
> No, I'd nix this part.

OK, I didn't understand the dependency on glibc. I was just following 
that IBM document.

> 
>> --without-headers
> 
> ?
> 
>> --with-newlib
> 
> ?
> 
> These two are wrong.  You don't want to use newlib.  You want to use  
> headers from solaris, as otherwise, you'll get:
> 
>> ../../../../src/llvm-gcc-svn/gcc/tsystem.h:90:19: error: stdio.h: No  
>> such file or directory
> 
> :-)

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.

Luke

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