Hi Thomas,
I cloned nvptx* again and now I was able to build everything.
The new compiler works for my small accelerator programs.
Thank you very much for your help
Siegmar
Am 26.02.2018 um 10:57 schrieb Thomas Schwinge:
Hi!
On Mon, 26 Feb 2018 07:58:17 +0100, Siegmar Gross
<siegmar.gr...@informatik.hs-fulda.de> wrote:
../gcc-8.0.0/configure --prefix=/usr/local/gcc-8.0.0 \
--target=nvptx-none \
--enable-as-accelerator-for=x86_64-pc-linux-gnu \
[...]
checking for C compiler default output file name...
configure: error: in
`/export2/src/gcc-8.0.0/gcc-8.0.0_build/nvptx-none/libbacktrace':
configure: error: C compiler cannot create executables
See `config.log' for more details.
Makefile:11774: recipe for target 'configure-target-libbacktrace' failed
make[1]: *** [configure-target-libbacktrace] Error 1
make[1]: Leaving directory '/export2/src/gcc-8.0.0/gcc-8.0.0_build'
configure:2659: checking for nvptx-none-gcc
configure:2686: result: /export2/src/gcc-8.0.0/gcc-8.0.0_build/./gcc/xgcc
-B/export2/src/gcc-8.0.0/gcc-8.0.0_build/./gcc/
-B/usr/local/gcc-8.0.0/nvptx-none/bin/ -B/usr/local/gcc-8.0.0/nvptx-none/lib/
-isystem /usr/local/gcc-8.0.0/nvptx-none/include -isystem
/usr/local/gcc-8.0.0/nvptx-none/sys-include
From a quick look, this is missing the "-B" etc. flags for newlib, which
would explain:
configure:2995: checking for C compiler default output file name
configure:3017: /export2/src/gcc-8.0.0/gcc-8.0.0_build/./gcc/xgcc
-B/export2/src/gcc-8.0.0/gcc-8.0.0_build/./gcc/ -B/usr/local/gcc-8.0.0/nvptx-none/bin/
-B/usr/local/gcc-8.0.0/nvptx-none/lib/ -isystem
/usr/local/gcc-8.0.0/nvptx-none/include -isystem
/usr/local/gcc-8.0.0/nvptx-none/sys-include -g -O2 conftest.c >&5
error opening libc.a
collect2: error: ld returned 1 exit status
... this error.
Can you please verify that newlib has been "git clone"d properly, been
linked into your GCC source tree, and in your GCC build log verify that
it indeed has been built without errors?
Grüße
Thomas
