P4LLVM P4C Compatibility

I'm trying to built P4LLVM with the latest version of P4C and there seems to be incompatibilities. Which was the latest version with which this was tested so I can try with that?

Jun 14 '22 16:06 kimonk

Hi,

The current repo as such contains a working setup with a version of P4C forked about 4-5 years back. However it is outdated, and we did not get to test on the later versions of P4C.

Jun 14 '22 16:06 svkeerthy

With a fresh copy, I get this error msg right off the bat:

"Error copying directory from "/home/kimonk/amd/P4LLVM/p4_14include" to "/home/kimonk/amd/P4LLVM/build/p4_14include". make[2]: *** [CMakeFiles/update_includes.dir/build.make:71: CMakeFiles/update_includes] Error 1 make[1]: *** [CMakeFiles/Makefile2:410: CMakeFiles/update_includes.dir/all] Error 2 make: *** [Makefile:146: all] Error 2"

If I just create this directory, it goes on but fails after a while by saying:

"In file included from /home/kimonk/amd/P4LLVM/frontends/parsers/parserDriver.cpp:12, from /home/kimonk/amd/P4LLVM/build/frontends/unified_frontend_sources_1.cpp:9: /home/kimonk/amd/P4LLVM/frontends/parsers/p4/p4lexer.hpp:12:10: fatal error: frontends/parsers/p4/p4parser.hpp: No such file or directory 12 | #include "frontends/parsers/p4/p4parser.hpp" | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ compilation terminated."

So files seems to be missing.

Jun 14 '22 17:06 kimonk

@kimonk Hello! I met the same problem. Did you solve it?

Dec 09 '22 09:12 RuSeKon

Hi @RuSeKon , Sadly, I did not. I couldn't figure it out and I dropped it. It would be interesting for us to re-evaluate this as a way forward though if this issue is resolved.

Dec 09 '22 10:12 kimonk

I try to change CMakeLists.txt. On line 288 i simply changed "${P4C_SOURCE_DIR}/p4_14include" with existent dir "${P4C_SOURCE_DIR}/p4include". Build completed successfully, but I'm not sure if this is really the right way.

Dec 12 '22 09:12 RuSeKon