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Symbiflow not working for Xilinx #808

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navan93 opened this issue Nov 23, 2023 · 6 comments · Fixed by #809
Closed

Symbiflow not working for Xilinx #808

navan93 opened this issue Nov 23, 2023 · 6 comments · Fixed by #809

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@navan93
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navan93 commented Nov 23, 2023

Similar to the issue #722 I am seeing that synthesis is failing

Project status:
    [S] bitstream:  bitstream -> /home/navaneeth/Projects/openmpw/CFU-Playground/soc/build/digilent_arty.proj_template/gateware/digilent_arty.bit
    [N] build_dir:  /home/navaneeth/Projects/openmpw/CFU-Playground/soc/build/digilent_arty.proj_template/gateware
    [S] eblif:  synth -> /home/navaneeth/Projects/openmpw/CFU-Playground/soc/build/digilent_arty.proj_template/gateware/digilent_arty.eblif
    [S] fasm:  fasm -> /home/navaneeth/Projects/openmpw/CFU-Playground/soc/build/digilent_arty.proj_template/gateware/digilent_arty.fasm
    [S] fasm_extra:  synth -> /home/navaneeth/Projects/openmpw/CFU-Playground/soc/build/digilent_arty.proj_template/gateware/digilent_arty_fasm_extra.fasm
    [S] io_place:  ioplace -> /home/navaneeth/Projects/openmpw/CFU-Playground/soc/build/digilent_arty.proj_template/gateware/digilent_arty.ioplace
    [S] net:  pack -> /home/navaneeth/Projects/openmpw/CFU-Playground/soc/build/digilent_arty.proj_template/gateware/digilent_arty.net
    [X] pcf:  MISSING
    [S] place:  place -> /home/navaneeth/Projects/openmpw/CFU-Playground/soc/build/digilent_arty.proj_template/gateware/digilent_arty.place
    [S] place_constraints:  place_constraints -> /home/navaneeth/Projects/openmpw/CFU-Playground/soc/build/digilent_arty.proj_template/gateware/digilent_arty.preplace
    [S] route:  route -> /home/navaneeth/Projects/openmpw/CFU-Playground/soc/build/digilent_arty.proj_template/gateware/digilent_arty.route
    [S] sdc:  synth -> /home/navaneeth/Projects/openmpw/CFU-Playground/soc/build/digilent_arty.proj_template/gateware/digilent_arty.sdc
    [N] sources:  ['/home/navaneeth/Projects/openmpw/CFU-Playground/proj/proj_template/cfu.v', '/home/navaneeth/Projects/openmpw/CFU-Playground/third_party/python/pythondata_cpu_vexriscv/pythondata_cpu_vexriscv/verilog/VexRiscv_FullCfu.v', '/home/navaneeth/Projects/openmpw/CFU-Playground/soc/build/digilent_arty.proj_template/gateware/digilent_arty.v']
    [N] xdc:  /home/navaneeth/Projects/openmpw/CFU-Playground/soc/build/digilent_arty.proj_template/gateware/digilent_arty.xdc

Executing module `synthesize`:
    [1/3] : Synthesizing sources: ['/home/navaneeth/Projects/openmpw/CFU-Playground/proj/proj_template/cfu.v', '/home/navaneeth/Projects/openmpw/CFU-Playground/third_party/python/pythondata_cpu_vexriscv/pythondata_cpu_vexriscv/verilog/VexRiscv_FullCfu.v', '/home/navaneeth/Projects/openmpw/CFU-Playground/soc/build/digilent_arty.proj_template/gateware/digilent_arty.v']...
[ERROR]: yosys non-zero return code.
stderr:
ERROR: TCL interpreter returned an error: Yosys command produced an error



make[5]: *** [/home/navaneeth/Projects/openmpw/CFU-Playground/soc/common_soc.mk:115: build/digilent_arty.proj_template/gateware/digilent_arty.bit] Error 1
make[5]: Leaving directory '/home/navaneeth/Projects/openmpw/CFU-Playground/soc'
make[4]: *** [../proj.mk:319: prog] Error 2
make[4]: Leaving directory '/home/navaneeth/Projects/openmpw/CFU-Playground/proj/proj_template'

In digilent_arty_synth.log

-- Running command `tcl /home/navaneeth/Projects/openmpw/CFU-Playground/env/symbiflow/xc7/install/share/f4pga/scripts/xc7/synth.tcl' --
[TCL: yosys -import] Command name collision: found pre-existing command `cd' -> skip.
[TCL: yosys -import] Command name collision: found pre-existing command `eval' -> skip.
[TCL: yosys -import] Command name collision: found pre-existing command `exec' -> skip.
[TCL: yosys -import] Command name collision: found pre-existing command `read' -> skip.
[TCL: yosys -import] Command name collision: found pre-existing command `trace' -> skip.
ERROR: Can't load module `./xdc': /home/navaneeth/Projects/openmpw/CFU-Playground/env/conda/envs/cfu-symbiflow/bin/../share/yosys/plugins/xdc.so: undefined symbol: _ZN5Yosys7stringfB5cxx11EPKcz
ERROR: TCL interpreter returned an error: Yosys command produced an error

Commands I have used are

make install-sf
make enter-sf
make prog TARGET=digilent_arty USE_SYMBIFLOW=1
@tcal-x
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tcal-x commented Nov 29, 2023

Thanks for the report @navan93 ! I haven't been able to reproduce it yet because I hit a different issue trying to do a fresh Symbiflow installation.

In case it matters, what OS are you using?

@navan93
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navan93 commented Nov 29, 2023

I am using Ubuntu 22.04 desktop.

@tcal-x
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tcal-x commented Dec 4, 2023

Hi @navan93 , I have reproduced the error. That's all I have for now.

tcal-x added a commit to tcal-x/CFU-Playground that referenced this issue Dec 12, 2023
@tcal-x
Pin the Yosys package to a version compatible with the F4PGA Yosys pl…
090397d 
…ugins.

This addresses google#808.

When the plugins package updates, we can unpin Yosys.

Also, comment out the download of the xc7a200t database
to make the installation of F4PGA faster.

Signed-off-by: Tim Callahan <[email protected]>
@tcal-x tcal-x mentioned this issue Dec 12, 2023
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@tcal-x
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tcal-x commented Dec 12, 2023

This may be related to chipsalliance/yosys-f4pga-plugins#542. In any case, I find that pinning Yosys to an older version resolves the issue: #809.

@tcal-x
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tcal-x commented Dec 15, 2023

I hit the same issue when targeting Nexus FPGAs since that flow also uses the yosys-f4pga-plugins:

ERROR: Can't load module `./dsp-ff': /home/tim/CFU-Playground/env/conda/envs/cfu-common/bin/../share/yosys/plugins/dsp-ff.so: undefined symbol: _ZN5Yosys7stringfB5cxx11EPKcz

I'll update the PR to pin Yosys in the place used for that flow.

@navan93
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navan93 commented Dec 19, 2023

Thanks @tcal-x for looking into this.

@proppy proppy mentioned this issue Mar 21, 2024
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Pin the Yosys package to a version compatible with the F4PGA plugins tcal-x/CFU-Playground
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@navan93 @tcal-x