https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85422
Tom de Vries <vries at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |tschwinge at gcc dot gnu.org
--- Comment #7 from Tom de Vries <vries at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #3)
> flags? A simple ./xgcc -fopenacc doesn't reproduce it. With my GCC 7
> install I see
>
> lto-wrapper: fatal error: problem with building target image for nvptx-none
>
> but no way to see the lto1 invocations :/ (tried -Wl,-debug -Wl,-v already)
I ran into the same problem when trying to use an installed compiler. Fixed by
adding -B options for:
- the dir containing accel/nvptx-none/mkoffload
- the dir containing the offload gcc (in my case,
x86_64-pc-linux-gnu-accel-nvptx-none-gcc)
So:
...
$ ./install/bin/x86_64-pc-linux-gnu-gcc \
-fopenacc \
src/libgomp/testsuite/libgomp.oacc-c-c++-common/pr85422.c \
-B $(pwd -P)/install/offload-nvptx-none/bin \
-B $(pwd -P)/install/offload-nvptx-none/libexec/gcc/x86_64-pc-linux-gnu/8.0.1
...
The error message could certainly be be better.
