Hi!

On 2017-01-13T19:11:23+0100, Jakub Jelinek <jakub@redhat.com> wrote:
> Especially for distributions it is undesirable to need to have proprietary
> CUDA libraries and headers installed when building GCC.

> I've talked to our lawyers and they said that the cuda.h header included
> in this patch doesn't infringe anyone's copyright or is otherwise a fair
> use, it has been created by gathering all the cu*/CU* symbols from the
> current and older nvptx plugin and some oacc tests, then stubbing the
> pointer-ish typedefs, grabing most enum values and function prototypes from
> https://raw.githubusercontent.com/shinpei0208/gdev/master/cuda/driver/cuda.h
> and verifying assembly with that header against assembly when compiled
> against NVidia's cuda.h.

..., and later accordingly was slightly extended, as necessary to use
further CUDA features in libgomp's nvptx plugin.

> --- libgomp/plugin/cuda/cuda.h.jj     2017-01-13 15:58:00.966544147 +0100
> +++ libgomp/plugin/cuda/cuda.h        2017-01-13 17:02:47.355817896 +0100
> @@ -0,0 +1,174 @@
> +/* CUDA API description.
> +   Copyright (C) 2017 Free Software Foundation, Inc.
> +
> +This file is part of GCC.
> +
> +GCC is free software; you can redistribute it and/or modify
> +it under the terms of the GNU General Public License as published by
> +the Free Software Foundation; either version 3, or (at your option)
> +any later version.
> +
> +GCC is distributed in the hope that it will be useful,
> +but WITHOUT ANY WARRANTY; without even the implied warranty of
> +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> +GNU General Public License for more details.
> +
> +You should have received a copy of the GNU General Public License
> +along with GCC; see the file COPYING3.  If not see
> +<http://www.gnu.org/licenses/>.
> +
> +This header provides the minimum amount of typedefs, enums and function
> +declarations to be able to compile plugin-nvptx.c if cuda.h and
> +libcuda.so.1 are not available.  */
> +
> +#ifndef GCC_CUDA_H
> +#define GCC_CUDA_H
> +[...]
> +#endif /* GCC_CUDA_H */

OK to push the attached
"Move 'libgomp/plugin/cuda/cuda.h' to 'include/cuda/cuda.h'", so that I'm
also able to use that file in the nvptx-tools, which inherit GCC's
'include' directory?


Grüße
 Thomas


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