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chipsalliance / yosys-f4pga-plugins

Plugins for Yosys developed as part of the F4PGA project.
https://f4pga.org
Apache License 2.0
80 stars 46 forks source link

Is local install supported? #253

Open tcal-x opened 2 years ago

tcal-x commented 2 years ago

I don't see any documentation on how to perform a local install (i.e. under /usr/local).

If I run make, most of the sub-builds succeed generating .so files, although I get this error (@hzeller ?):

In file included from uhdmastshared.h:4,
                 from UhdmAst.h:8,
                 from uhdmsurelogastfrontend.cc:22:
uhdmastreport.h:9:10: fatal error: uhdm/uhdm.h: No such file or directory
    9 | #include <uhdm/uhdm.h>
      |          ^~~~~~~~~~~~~
compilation terminated.

When I try sudo make install, I get

make -C fasm-plugin install
make[1]: Entering directory '/home/tcal/SymbiFlow/yosys-f4pga-plugins/fasm-plugin'
../Makefile_plugin.common:47: *** "Didn't find 'yosys-config' under '/'".  Stop.
make[1]: Leaving directory '/home/tcal/SymbiFlow/yosys-f4pga-plugins/fasm-plugin'
make: *** [Makefile:37: install_fasm] Error 2

This seems to be some strange interaction between sudo and the calculation of YOSYS_PATH in Makefile_plugin.common. I do have both /usr/local/bin/yosys and /usr/local/bin/yosys-config, so YOSYS_PATH should be /usr/local. At my command line, sudo which yosys returns nothing, even though sudo echo $PATH contains /usr/local/bin.

A workaround is to run sudo make install YOSYS_PATH=/usr/local, but it seems something is broken.

hzeller commented 2 years ago

https://github.com/antmicro/surelog-uhdm-ibex-guide gives a good overview what needs to be done.

Essentially, you need Surelog and UHDM present for the module to compile.

GitHub
GitHub - antmicro/surelog-uhdm-ibex-guide
Contribute to antmicro/surelog-uhdm-ibex-guide development by creating an account on GitHub.
tcal-x commented 2 years ago

even though sudo echo $PATH contains /usr/local/bin.

Ah, this is wrong as pointed out in https://unix.stackexchange.com/questions/32764/why-which-tmux-and-sudo-which-tmux-return-2-different-values -- $PATH gets expanded before getting passed into sudo. If I instead do:

sudo sh -c 'echo $PATH'

... I get:

/usr/sbin:/usr/bin:/sbin:/bin

..which doesn't include /usr/local/bin.

So, the mechanism for finding yosys-config doesn't work as implemented when run under sudo.