Hi there. Sorry in advance if this is a silly question. I've got a test program in my v3c-storyboard project http://sourceforge.net/projects/v3c-storyboard/ that generates LLVM assembly for a hello world program. If I try clang -o hello-world hello-world.ll I get "error: unable to interface with target machine". But if I llvm-as -o hello-world.bc hello-world.ll && " "llc -o hello-world.S hello-world.bc && " "gcc -o hello-world hello-world.S" itworks. What am I missing? Regards, Philip Ashmore
On 14/11/12 22:11, Philip Ashmore wrote: > Hi there. > > Sorry in advance if this is a silly question. > > I've got a test program in my v3c-storyboard project > http://sourceforge.net/projects/v3c-storyboard/ > that generates LLVM assembly for a hello world program. > > If I try > > clang -o hello-world hello-world.ll > > I get "error: unable to interface with target machine". > > But if I > > llvm-as -o hello-world.bc hello-world.ll && " > "llc -o hello-world.S hello-world.bc && " > "gcc -o hello-world hello-world.S" > > it works. > > What am I missing? > > Regards, > Philip Ashmore > _______________________________________________ > LLVM Developers mailing list > LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev I tested it with llvm 3.2svn but I've got to change v3c-storyboard's configure script to look for llvm-config-3.x instead of llvm-config for the llvm 3.1 Debian package. It doesn't work with llvm 3.0. Here's the generated file. ; ModuleID = 'my cool jit' @0 = private unnamed_addr constant [14 x i8] c"Hello, world!\00" declare i32 @puts(i8*) define i32 @main(i32, [0 x i8*]) { entry: %2 = call i32 @puts(i8* getelementptr inbounds ([14 x i8]* @0, i32 0, i32 0)) ret i32 0 }
Hi Philip, ...> > I've got a test program in my v3c-storyboard project > > http://sourceforge.net/projects/v3c-storyboard/ > > that generates LLVM assembly for a hello world program. > > > > If I try > > > > clang -o hello-world hello-world.ll > > > > I get "error: unable to interface with target machine"....> ; ModuleID = 'my cool jit' > > @0 = private unnamed_addr constant [14 x i8] c"Hello, world!\00" > > declare i32 @puts(i8*) > > define i32 @main(i32, [0 x i8*]) { > entry: > %2 = call i32 @puts(i8* getelementptr inbounds ([14 x i8]* @0, i32 0, i32 0)) > ret i32 0 > }maybe try putting a target triple in the IR? Perhaps clang needs to know which machine you want to target (while llc guesses). Ciao, Duncan.
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