[LLVMdev] writing transforms newbie question
reid at x10sys.com
Thu Apr 13 23:38:22 PDT 2006
On Fri, 2006-04-14 at 00:21 -0500, Ryan M. Lefever wrote:
> I apologize if this is a duplicate question; I didn't see it previously
> on the list. I'm using llvm 1.6 and my setup is as follows. LLVM is
> installed at /usr/software/llvm and the cfrontend is installed at
> If I cd to /usr/software/llvm/lib/Transforms/Hello and compile the Hello
> transform I have no problems. However, if I copy the Hello directory to
> my home directory and change the makefile so the LEVEL points to
> /usr/software/llvm I get the following error message:
I assume you did something like:
LEVEL = /usr/software/llvm
If so, you can't do that. :) The LEVEL must be a relative path from the
local directory and it must also be the case that it is a subdirectory
of LLVM tree.
I think what you want is an LLVM makefile project. Please take a look
at the "sample" project (llvm/projects/sample) and also:
> Makefile:15: /Makefile.common: No such file or directory
> make: *** No rule to make target `/Makefile.common'. Stop.
Its trying to find the LLVM Makefile.common file but not succeeding
because of the way it uses the LEVEL variable.
> The same thing happens if I try to set LEVEL to something like
That, however, I would expect to work. Not sure why it doesn't. What
happens if you do this?
> Do I need my transform in the LLVM lib/Transforms directory to build it?
> Are there other variables I need to set in the makefile?
Please see the Makefile Guide. You can set your own project up using the
LLVM Makefile system.
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