Svadev mailing list

[John Criswell <criswell AT illinois.edu>]

Dear All,

It seems that I encountered several problems when compiling SAFECode 
using an LLVM source tree that does not include Clang.  I suspect these 
issues arose when Clang started using its own tblgen program 
(clang-tblgen); I don't think these problems exist within the source 
tarball on the SAFECode web site.

I believe I have fixed all of the problems (my test build is still 
going, but it's gotten past all the errors that I've seen when I removed 
clang from llvm/tools).

If you svn up, you should be able to compile SAFECode successfully.  If 
you run into problems, try doing a clean checkout and build from 
scratch.  If that doesn't work, please email the list again with the 
error you're seeing.

Thanks for catching this!

-- John T.


On 10/11/11 9:58 AM, John Criswell wrote:
> On 10/11/11 4:21 AM, Pavel Borzenkov wrote:
> > Hi.
> >
> > The SAFECode build process fails with the following error:
> >
> > {{{
> > make[5]: Entering directory 
> > `/home/pavel/projects/safecode/llvm-svn-build/projects/safecode/tools/clang/include/clang/AST'
> > make[5]: *** No rule to make target 
> > `/home/pavel/projects/safecode/llvm-svn-build/Debug+Asserts/bin/clang-tblgen',
> >  needed by 
> > `/home/pavel/projects/safecode/llvm-svn-build/projects/safecode/tools/clang/include/clang/AST/Debug+Asserts/Attrs.inc.tmp'.
> >   Stop.
> > make[5]: Leaving directory 
> > `/home/pavel/projects/safecode/llvm-svn-build/projects/safecode/tools/clang/include/clang/AST'
> > make[4]: *** [all] Error 1
> > }}}
> >
> > SAFECode sources are checked-out into $LLVM_SRC/projects/safecode.
> Fascinating. I don't see this error on either Mac OS X or Linux.  I
> happen to have clang checked out into llvm/tools; maybe my SAFECode
> clang build is picking something up from the original clang.
>
> I'll do a clean build with just LLVM, poolalloc, and SAFECode on Mac OS
> X and see what happens.
>
> Does changing the line to CLANG_LEVEL = ../.. work also?
>
> -- John T.
>
>
> > The following patch fixes the problem for me:
> >
> > {{{
> > Index: tools/clang/utils/TableGen/Makefile
> > ===================================================================
> > --- tools/clang/utils/TableGen/Makefile (revision 141645)
> > +++ tools/clang/utils/TableGen/Makefile (working copy)
> > @@ -7,7 +7,7 @@
> >    #
> >    
> > ##===----------------------------------------------------------------------===##
> >
> > -LEVEL = ../../../..
> > +LEVEL = ../../../../../..
> >    TOOLNAME = clang-tblgen
> >    LINK_COMPONENTS = TableGen support
> >    REQUIRES_EH := 1
> > }}}
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